Use jit_guard_known_klass() for hashes in opt_aref

The old heap object check is not as efficient as the one in jit_guard_known_klass(). Also, the old code saves cfp->sp after popping the operands off the stack, which might cause the operands to be not marked by the GC in some circumstances.
author: Alan Wu <XrXr@users.noreply.github.com> 2021-09-27 14:54:09 -0400
committer: Alan Wu <XrXr@users.noreply.github.com> 2021-10-20 18:19:41 -0400
commit: 5c15850ea622d8ad86fa14cb5b9ba6f03abb232e (patch)
tree: 73f43455c66579d555509c9d96c9868400bca19e /tool/m4/ruby_func_attribute.m4
parent: 9dce2d51326c7db947507f32a9d33a0d22bbafbd (diff)
0 files changed, 0 insertions, 0 deletions
diff --git a/.cvsignore b/.cvsignore
deleted file mode 100644
index a72211d03f..0000000000
--- a/.cvsignore
+++ /dev/null
@@ -1,48 +0,0 @@
-*.bak
-*.orig
-*.rej
-*.sav
-*~
-.*.list
-.*.time
-.ccmalloc
-.ppack
-.ext
-.git
-.svn
-.pc
-COPYING.LIB
-ChangeLog.pre-alpha
-ChangeLog.pre1_1
-Makefile
-README.fat-patch
-README.v6
-README.atheos
-archive
-autom4te*.cache
-automake
-beos
-config.cache
-config.h
-config.h.in
-config.log
-config.status
-configure
-libruby.so.*
-miniruby
-newdate.rb
-newver.rb
-parse.c
-patches
-ppack
-preview
-rbconfig.rb
-repack
-riscos
-rubicon
-ruby
-ruby-man.rd.gz
-tmp
-web
-y.output
-y.tab.c
diff --git a/.document b/.document
index 230c50e387..fb27ba325d 100644
--- a/.document
+++ b/.document
@@ -6,11 +6,21 @@
 # Process all the C source files
 *.c
 
-# the lib/ directory (which has its own .document file)
+# prelude
+prelude.rb
 
+# the lib/ directory (which has its own .document file)
 lib
 
-
 # and some of the ext/ directory (which has its own .document file)
-
 ext
+
+# rdoc files
+ChangeLog
+
+NEWS
+
+README.md
+README.ja.md
+
+doc
diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000000..67abf4b978
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,16 @@
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+tab_width = 8
+indent_style = tab
+indent_size = 4
+
+[**.bat]
+end_of_line = crlf
+
+[**.rb]
+indent_style = space
+indent_size = 2
diff --git a/.gdbinit b/.gdbinit
new file mode 100644
index 0000000000..d31ccaa7df
--- /dev/null
+++ b/.gdbinit
@@ -0,0 +1,1210 @@
+define hook-run
+  set $color_type = 0
+  set $color_highlite = 0
+  set $color_end = 0
+end
+
+define ruby_gdb_init
+  if !$color_type
+    set $color_type = "\033[31m"
+  end
+  if !$color_highlite
+    set $color_highlite = "\033[36m"
+  end
+  if !$color_end
+    set $color_end = "\033[m"
+  end
+  if ruby_dummy_gdb_enums.special_consts
+  end
+end
+
+# set prompt \033[36m(gdb)\033[m\040
+
+define rp
+  ruby_gdb_init
+  if (VALUE)($arg0) & RUBY_FIXNUM_FLAG
+    printf "FIXNUM: %ld\n", (long)($arg0) >> 1
+  else
+  if ((VALUE)($arg0) & ~(~(VALUE)0<<RUBY_SPECIAL_SHIFT)) == RUBY_SYMBOL_FLAG
+    set $id = (($arg0) >> RUBY_SPECIAL_SHIFT)
+    printf "%sSYMBOL%s: ", $color_type, $color_end
+    rp_id $id
+  else
+  if ($arg0) == RUBY_Qfalse
+    echo false\n
+  else
+  if ($arg0) == RUBY_Qtrue
+    echo true\n
+  else
+  if ($arg0) == RUBY_Qnil
+    echo nil\n
+  else
+  if ($arg0) == RUBY_Qundef
+    echo undef\n
+  else
+  if (VALUE)($arg0) & RUBY_IMMEDIATE_MASK
+    if ((VALUE)($arg0) & RUBY_FLONUM_MASK) == RUBY_FLONUM_FLAG
+      printf "%sFLONUM%s: %g\n", $color_type, $color_end, (double)rb_float_value($arg0)
+    else
+      echo immediate\n
+    end
+  else
+  set $flags = ((struct RBasic*)($arg0))->flags
+  if ($flags & RUBY_FL_PROMOTED) == RUBY_FL_PROMOTED
+    printf "[PROMOTED] "
+  end
+  if ($flags & RUBY_T_MASK) == RUBY_T_NONE
+    printf "%sT_NONE%s: ", $color_type, $color_end
+    print (struct RBasic *)($arg0)
+  else
+  if ($flags & RUBY_T_MASK) == RUBY_T_NIL
+    printf "%sT_NIL%s: ", $color_type, $color_end
+    print (struct RBasic *)($arg0)
+  else
+  if ($flags & RUBY_T_MASK) == RUBY_T_OBJECT
+    printf "%sT_OBJECT%s: ", $color_type, $color_end
+    print (struct RObject *)($arg0)
+  else
+  if ($flags & RUBY_T_MASK) == RUBY_T_CLASS
+    printf "%sT_CLASS%s%s: ", $color_type, ($flags & RUBY_FL_SINGLETON) ? "*" : "", $color_end
+    rp_class $arg0
+  else
+  if ($flags & RUBY_T_MASK) == RUBY_T_ICLASS
+    printf "%sT_ICLASS%s: ", $color_type, $color_end
+    rp_class $arg0
+  else
+  if ($flags & RUBY_T_MASK) == RUBY_T_MODULE
+    printf "%sT_MODULE%s: ", $color_type, $color_end
+    rp_class $arg0
+  else
+  if ($flags & RUBY_T_MASK) == RUBY_T_FLOAT
+    printf "%sT_FLOAT%s: %.16g ", $color_type, $color_end, (((struct RFloat*)($arg0))->float_value)
+    print (struct RFloat *)($arg0)
+  else
+  if ($flags & RUBY_T_MASK) == RUBY_T_STRING
+    printf "%sT_STRING%s: ", $color_type, $color_end
+    rp_string $arg0 $flags
+  else
+  if ($flags & RUBY_T_MASK) == RUBY_T_REGEXP
+    set $regsrc = ((struct RRegexp*)($arg0))->src
+    set $rsflags = ((struct RBasic*)$regsrc)->flags
+    printf "%sT_REGEXP%s: ", $color_type, $color_end
+    set print address off
+    output (char *)(($rsflags & RUBY_FL_USER1) ? \
+	    ((struct RString*)$regsrc)->as.heap.ptr : \
+	    ((struct RString*)$regsrc)->as.ary)
+    set print address on
+    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
+    if $flags & RUBY_FL_USER5
+      printf "(literal) "
+    end
+    if $flags & RUBY_FL_USER4
+      printf "(fixed) "
+    end
+    printf "encoding:%d ", ($flags & RUBY_ENCODING_MASK) >> RUBY_ENCODING_SHIFT
+    print (struct RRegexp *)($arg0)
+  else
+  if ($flags & RUBY_T_MASK) == RUBY_T_ARRAY
+    if ($flags & RUBY_FL_USER1)
+      set $len = (($flags & (RUBY_FL_USER3|RUBY_FL_USER4)) >> (RUBY_FL_USHIFT+3))
+      printf "%sT_ARRAY%s: len=%ld ", $color_type, $color_end, $len
+      printf "(embed) "
+      if ($len == 0)
+	printf "{(empty)} "
+      else
+	output/x *((VALUE*)((struct RArray*)($arg0))->as.ary) @ $len
+	printf " "
+      end
+    else
+      set $len = ((struct RArray*)($arg0))->as.heap.len
+      printf "%sT_ARRAY%s: len=%ld ", $color_type, $color_end, $len
+      if ($flags & RUBY_FL_USER2)
+	printf "(shared) shared="
+	output/x ((struct RArray*)($arg0))->as.heap.aux.shared
+	printf " "
+      else
+	printf "(ownership) capa=%ld ", ((struct RArray*)($arg0))->as.heap.aux.capa
+      end
+      if ($len == 0)
+	printf "{(empty)} "
+      else
+	output/x *((VALUE*)((struct RArray*)($arg0))->as.heap.ptr) @ $len
+	printf " "
+      end
+    end
+    print (struct RArray *)($arg0)
+  else
+  if ($flags & RUBY_T_MASK) == RUBY_T_FIXNUM
+    printf "%sT_FIXNUM%s: ", $color_type, $color_end
+    print (struct RBasic *)($arg0)
+  else
+  if ($flags & RUBY_T_MASK) == RUBY_T_HASH
+    printf "%sT_HASH%s: ", $color_type, $color_end,
+    if ((struct RHash *)($arg0))->ntbl
+      printf "len=%ld ", ((struct RHash *)($arg0))->ntbl->num_entries
+    end
+    print (struct RHash *)($arg0)
+  else
+  if ($flags & RUBY_T_MASK) == RUBY_T_STRUCT
+    printf "%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)
+    print (struct RStruct *)($arg0)
+    x/xw (($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
+    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, $color_end
+    print (struct RRational *)($arg0)
+  else
+  if ($flags & RUBY_T_MASK) == RUBY_T_COMPLEX
+    printf "%sT_COMPLEX%s: ", $color_type, $color_end
+    print (struct RComplex *)($arg0)
+  else
+  if ($flags & RUBY_T_MASK) == RUBY_T_FILE
+    printf "%sT_FILE%s: ", $color_type, $color_end
+    print (struct RFile *)($arg0)
+    output *((struct RFile *)($arg0))->fptr
+    printf "\n"
+  else
+  if ($flags & RUBY_T_MASK) == RUBY_T_TRUE
+    printf "%sT_TRUE%s: ", $color_type, $color_end
+    print (struct RBasic *)($arg0)
+  else
+  if ($flags & RUBY_T_MASK) == RUBY_T_FALSE
+    printf "%sT_FALSE%s: ", $color_type, $color_end
+    print (struct RBasic *)($arg0)
+  else
+  if ($flags & RUBY_T_MASK) == RUBY_T_DATA
+    if ((struct RTypedData *)($arg0))->typed_flag == 1
+      printf "%sT_DATA%s(%s): ", $color_type, $color_end, ((struct RTypedData *)($arg0))->type->wrap_struct_name
+      print (struct RTypedData *)($arg0)
+    else
+      printf "%sT_DATA%s: ", $color_type, $color_end
+      print (struct RData *)($arg0)
+    end
+  else
+  if ($flags & RUBY_T_MASK) == RUBY_T_MATCH
+    printf "%sT_MATCH%s: ", $color_type, $color_end
+    print (struct RMatch *)($arg0)
+  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 $id_fstr
+  else
+  if ($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)&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)
+    printf "): "
+    print *(NODE *)($arg0)
+  else
+  if ($flags & RUBY_T_MASK) == RUBY_T_ZOMBIE
+    printf "%sT_ZOMBIE%s: ", $color_type, $color_end
+    print (struct RData *)($arg0)
+  else
+    printf "%sunknown%s: ", $color_type, $color_end
+    print (struct RBasic *)($arg0)
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+end
+document rp
+  Print a Ruby's VALUE.
+end
+
+define rp_id
+  set $id = (ID)$arg0
+  if $id == '!' || $id == '+' || $id == '-' || $id == '*' || $id == '/' || $id == '%' || $id == '<' || $id == '>' || $id == '`'
+    printf "(:%c)\n", $id
+  else
+  if $id == idDot2
+    printf "(:..)\n"
+  else
+  if $id == idDot3
+    printf "(:...)\n"
+  else
+  if $id == idUPlus
+    printf "(:+@)\n"
+  else
+  if $id == idUMinus
+    printf "(:-@)\n"
+  else
+  if $id == idPow
+    printf "(:**)\n"
+  else
+  if $id == idCmp
+    printf "(:<=>)\n"
+  else
+  if $id == idLTLT
+    printf "(:<<)\n"
+  else
+  if $id == idLE
+    printf "(:<=)\n"
+  else
+  if $id == idGE
+    printf "(:>=)\n"
+  else
+  if $id == idEq
+    printf "(:==)\n"
+  else
+  if $id == idEqq
+    printf "(:===)\n"
+  else
+  if $id == idNeq
+    printf "(:!=)\n"
+  else
+  if $id == idEqTilde
+    printf "(:=~)\n"
+  else
+  if $id == idNeqTilde
+    printf "(:!~)\n"
+  else
+  if $id == idAREF
+    printf "(:[])\n"
+  else
+  if $id == idASET
+    printf "(:[]=)\n"
+  else
+    if $id <= tLAST_OP_ID
+      printf "O"
+    else
+      set $id_type = $id & RUBY_ID_SCOPE_MASK
+      if $id_type == RUBY_ID_LOCAL
+        printf "l"
+      else
+      if $id_type == RUBY_ID_INSTANCE
+        printf "i"
+      else
+      if $id_type == RUBY_ID_GLOBAL
+        printf "G"
+      else
+      if $id_type == RUBY_ID_ATTRSET
+        printf "a"
+      else
+      if $id_type == RUBY_ID_CONST
+        printf "C"
+      else
+      if $id_type == RUBY_ID_CLASS
+        printf "c"
+      else
+        printf "j"
+      end
+      end
+      end
+      end
+      end
+      end
+    end
+    printf "(%ld): ", $id
+    set $str = lookup_id_str($id)
+    if $str
+      rp_string $str
+    else
+      echo undef\n
+    end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+  end
+end
+document rp_id
+  Print an ID.
+end
+
+define output_string
+  set $flags = ((struct RBasic*)($arg0))->flags
+  printf "%s", (char *)(($flags & RUBY_FL_USER1) ? \
+	    ((struct RString*)($arg0))->as.heap.ptr : \
+	    ((struct RString*)($arg0))->as.ary)
+end
+
+define rp_string
+  set $flags = ((struct RBasic*)($arg0))->flags
+  set print address off
+  output (char *)(($flags & RUBY_FL_USER1) ? \
+	    ((struct RString*)($arg0))->as.heap.ptr : \
+	    ((struct RString*)($arg0))->as.ary)
+  set print address on
+  printf " bytesize:%ld ", ($flags & RUBY_FL_USER1) ? \
+          ((struct RString*)($arg0))->as.heap.len : \
+          (($flags & (RUBY_FL_USER2|RUBY_FL_USER3|RUBY_FL_USER4|RUBY_FL_USER5|RUBY_FL_USER6)) >> RUBY_FL_USHIFT+2)
+  if !($flags & RUBY_FL_USER1)
+    printf "(embed) "
+  else
+    if ($flags & RUBY_FL_USER2)
+      printf "(shared) "
+    end
+    if ($flags & RUBY_FL_USER3)
+      printf "(assoc) "
+    end
+  end
+  printf "encoding:%d ", ($flags & RUBY_ENCODING_MASK) >> RUBY_ENCODING_SHIFT
+  if ($flags & RUBY_ENC_CODERANGE_MASK) == 0
+    printf "coderange:unknown "
+  else
+  if ($flags & RUBY_ENC_CODERANGE_MASK) == RUBY_ENC_CODERANGE_7BIT
+    printf "coderange:7bit "
+  else
+  if ($flags & RUBY_ENC_CODERANGE_MASK) == RUBY_ENC_CODERANGE_VALID
+    printf "coderange:valid "
+  else
+    printf "coderange:broken "
+  end
+  end
+  end
+  print (struct RString *)($arg0)
+end
+document rp_string
+  Print the content of a String.
+end
+
+define rp_class
+  printf "(struct RClass *) %p", (void*)$arg0
+  if ((struct RClass *)($arg0))->ptr.origin_ != $arg0
+    printf " -> %p", ((struct RClass *)($arg0))->ptr.origin_
+  end
+  printf "\n"
+  rb_classname $arg0
+  print *(struct RClass *)($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) & 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
+document nd_type
+  Print a Ruby' node type.
+end
+
+define nd_file
+  print ((NODE*)($arg0))->nd_file
+end
+document nd_file
+  Print the source file name of a node.
+end
+
+define nd_line
+  print ((unsigned int)((((NODE*)($arg0))->flags>>RUBY_NODE_LSHIFT)&RUBY_NODE_LMASK))
+end
+document nd_line
+  Print the source line number of a node.
+end
+
+# Print members of ruby node.
+
+define nd_head
+  printf "%su1.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u1.node
+end
+
+define nd_alen
+  printf "%su2.argc%s: ", $color_highlite, $color_end
+  p ($arg0).u2.argc
+end
+
+define nd_next
+  printf "%su3.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u3.node
+end
+
+
+define nd_cond
+  printf "%su1.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u1.node
+end
+
+define nd_body
+  printf "%su2.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u2.node
+end
+
+define nd_else
+  printf "%su3.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u3.node
+end
+
+
+define nd_orig
+  printf "%su3.value%s: ", $color_highlite, $color_end
+  rp ($arg0).u3.value
+end
+
+
+define nd_resq
+  printf "%su2.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u2.node
+end
+
+define nd_ensr
+  printf "%su3.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u3.node
+end
+
+
+define nd_1st
+  printf "%su1.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u1.node
+end
+
+define nd_2nd
+  printf "%su2.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u2.node
+end
+
+
+define nd_stts
+  printf "%su1.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u1.node
+end
+
+
+define nd_entry
+  printf "%su3.entry%s: ", $color_highlite, $color_end
+  p ($arg0).u3.entry
+end
+
+define nd_vid
+  printf "%su1.id%s: ", $color_highlite, $color_end
+  p ($arg0).u1.id
+end
+
+define nd_cflag
+  printf "%su2.id%s: ", $color_highlite, $color_end
+  p ($arg0).u2.id
+end
+
+define nd_cval
+  printf "%su3.value%s: ", $color_highlite, $color_end
+  rp ($arg0).u3.value
+end
+
+
+define nd_cnt
+  printf "%su3.cnt%s: ", $color_highlite, $color_end
+  p ($arg0).u3.cnt
+end
+
+define nd_tbl
+  printf "%su1.tbl%s: ", $color_highlite, $color_end
+  p ($arg0).u1.tbl
+end
+
+
+define nd_var
+  printf "%su1.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u1.node
+end
+
+define nd_ibdy
+  printf "%su2.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u2.node
+end
+
+define nd_iter
+  printf "%su3.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u3.node
+end
+
+
+define nd_value
+  printf "%su2.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u2.node
+end
+
+define nd_aid
+  printf "%su3.id%s: ", $color_highlite, $color_end
+  p ($arg0).u3.id
+end
+
+
+define nd_lit
+  printf "%su1.value%s: ", $color_highlite, $color_end
+  rp ($arg0).u1.value
+end
+
+
+define nd_frml
+  printf "%su1.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u1.node
+end
+
+define nd_rest
+  printf "%su2.argc%s: ", $color_highlite, $color_end
+  p ($arg0).u2.argc
+end
+
+define nd_opt
+  printf "%su1.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u1.node
+end
+
+
+define nd_recv
+  printf "%su1.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u1.node
+end
+
+define nd_mid
+  printf "%su2.id%s: ", $color_highlite, $color_end
+  p ($arg0).u2.id
+end
+
+define nd_args
+  printf "%su3.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u3.node
+end
+
+
+define nd_noex
+  printf "%su1.id%s: ", $color_highlite, $color_end
+  p ($arg0).u1.id
+end
+
+define nd_defn
+  printf "%su3.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u3.node
+end
+
+
+define nd_old
+  printf "%su1.id%s: ", $color_highlite, $color_end
+  p ($arg0).u1.id
+end
+
+define nd_new
+  printf "%su2.id%s: ", $color_highlite, $color_end
+  p ($arg0).u2.id
+end
+
+
+define nd_cfnc
+  printf "%su1.cfunc%s: ", $color_highlite, $color_end
+  p ($arg0).u1.cfunc
+end
+
+define nd_argc
+  printf "%su2.argc%s: ", $color_highlite, $color_end
+  p ($arg0).u2.argc
+end
+
+
+define nd_cname
+  printf "%su1.id%s: ", $color_highlite, $color_end
+  p ($arg0).u1.id
+end
+
+define nd_super
+  printf "%su3.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u3.node
+end
+
+
+define nd_modl
+  printf "%su1.id%s: ", $color_highlite, $color_end
+  p ($arg0).u1.id
+end
+
+define nd_clss
+  printf "%su1.value%s: ", $color_highlite, $color_end
+  rp ($arg0).u1.value
+end
+
+
+define nd_beg
+  printf "%su1.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u1.node
+end
+
+define nd_end
+  printf "%su2.node%s: ", $color_highlite, $color_end
+  rp ($arg0).u2.node
+end
+
+define nd_state
+  printf "%su3.state%s: ", $color_highlite, $color_end
+  p ($arg0).u3.state
+end
+
+define nd_rval
+  printf "%su2.value%s: ", $color_highlite, $color_end
+  rp ($arg0).u2.value
+end
+
+
+define nd_nth
+  printf "%su2.argc%s: ", $color_highlite, $color_end
+  p ($arg0).u2.argc
+end
+
+
+define nd_tag
+  printf "%su1.id%s: ", $color_highlite, $color_end
+  p ($arg0).u1.id
+end
+
+define nd_tval
+  printf "%su2.value%s: ", $color_highlite, $color_end
+  rp ($arg0).u2.value
+end
+
+define nd_tree
+  set $buf = (struct RString *)rb_str_buf_new(0)
+  call dump_node((VALUE)($buf), rb_str_new(0, 0), 0, ($arg0))
+  printf "%s\n", $buf->as.heap.ptr
+end
+
+define rb_p
+  call rb_p($arg0)
+end
+
+define rb_numtable_entry
+  set $rb_numtable_tbl = $arg0
+  set $rb_numtable_id = (st_data_t)$arg1
+  set $rb_numtable_key = 0
+  set $rb_numtable_rec = 0
+  if $rb_numtable_tbl->entries_packed
+    set $rb_numtable_p = $rb_numtable_tbl->as.packed.bins
+    while $rb_numtable_p && $rb_numtable_p < $rb_numtable_tbl->as.packed.bins+$rb_numtable_tbl->num_entries
+      if $rb_numtable_p.k == $rb_numtable_id
+	set $rb_numtable_key = $rb_numtable_p.k
+	set $rb_numtable_rec = $rb_numtable_p.v
+	set $rb_numtable_p = 0
+      else
+	set $rb_numtable_p = $rb_numtable_p + 1
+      end
+    end
+  else
+    set $rb_numtable_p = $rb_numtable_tbl->as.big.bins[st_numhash($rb_numtable_id) % $rb_numtable_tbl->num_bins]
+    while $rb_numtable_p
+      if $rb_numtable_p->key == $rb_numtable_id
+	set $rb_numtable_key = $rb_numtable_p->key
+	set $rb_numtable_rec = $rb_numtable_p->record
+	set $rb_numtable_p = 0
+      else
+	set $rb_numtable_p = $rb_numtable_p->next
+      end
+    end
+  end
+end
+
+define rb_id2name
+  ruby_gdb_init
+  printf "%sID%s: ", $color_type, $color_end
+  rp_id $arg0
+end
+document rb_id2name
+  Print the name of id
+end
+
+define rb_method_entry
+  set $rb_method_entry_klass = (struct RClass *)$arg0
+  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
+    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)
+    end
+  end
+  if $rb_method_entry_me
+    print *$rb_method_entry_klass
+    print *$rb_method_entry_me
+  else
+    echo method not found\n
+  end
+end
+document rb_method_entry
+  Search method entry by class and id
+end
+
+define rb_classname
+  # up to 128bit int
+  set $rb_classname_permanent = "0123456789ABCDEF"
+  set $rb_classname = classname($arg0, $rb_classname_permanent)
+  if $rb_classname != RUBY_Qnil
+    rp $rb_classname
+  else
+    echo anonymous class/module\n
+  end
+end
+
+define rb_ancestors
+  set $rb_ancestors_module = $arg0
+  while $rb_ancestors_module
+    rp_class $rb_ancestors_module
+    set $rb_ancestors_module = RCLASS_SUPER($rb_ancestors_module)
+  end
+end
+document rb_ancestors
+  Print ancestors.
+end
+
+define rb_backtrace
+  call rb_backtrace()
+end
+
+define iseq
+  if ruby_dummy_gdb_enums.special_consts
+  end
+  if ($arg0)->type == ISEQ_ELEMENT_NONE
+    echo [none]\n
+  end
+  if ($arg0)->type == ISEQ_ELEMENT_LABEL
+    print *(LABEL*)($arg0)
+  end
+  if ($arg0)->type == ISEQ_ELEMENT_INSN
+    print *(INSN*)($arg0)
+    if ((INSN*)($arg0))->insn_id != YARVINSN_jump
+      set $i = 0
+      set $operand_size = ((INSN*)($arg0))->operand_size
+      set $operands = ((INSN*)($arg0))->operands
+      while $i < $operand_size
+	rp $operands[$i++]
+      end
+    end
+  end
+  if ($arg0)->type == ISEQ_ELEMENT_ADJUST
+    print *(ADJUST*)($arg0)
+  end
+end
+
+define rb_ps
+  rb_ps_vm ruby_current_vm
+end
+document rb_ps
+Dump all threads and their callstacks
+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
+    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->line_info_size
+  set $table = $iseq->body->line_info_table
+  #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
+    end
+    printf "%d", $table[$i-1].line_no
+  end
+end
+
+define check_method_entry
+  # get $immeo and $can_be_svar and return $me
+  set $imemo = (struct RBasic *)$arg0
+  set $can_be_svar = $arg1
+  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 0
+    end
+    end
+  end
+end
+
+define output_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]
+        output_string $result
+      end
+    end
+  end
+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->cfp
+  set $cfpend = (rb_control_frame_t *)($ps_thread_th->stack + $ps_thread_th->stack_size)-1
+  while $cfp < $cfpend
+    if $cfp->iseq
+      if $cfp->pc
+        set $location = $cfp->iseq->body->location
+        output_string $location.path
+        printf ":"
+        print_lineno $cfp
+        printf ":in `"
+        output_string $location.label
+        printf "'\n"
+      else
+        printf "???.rb:???:in `???'\n"
+      end
+    else
+      # if VM_FRAME_TYPE($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 0
+          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 1
+        end
+        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 `"
+        output_id $mid
+        printf "'\n"
+      else
+        printf "unknown_frame:???:in `???'\n"
+      end
+    end
+    set $cfp = $cfp + 1
+  end
+end
+
+define rb_count_objects
+  set $objspace = ruby_current_vm->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.
+end
+
+# Details: https://bugs.ruby-lang.org/projects/ruby-trunk/wiki/MachineInstructionsTraceWithGDB
+define trace_machine_instructions
+  set logging on
+  set height 0
+  set width 0
+  display/i $pc
+  while !$exit_code
+    info line *$pc
+    si
+  end
+end
+
+define SDR
+  call rb_vmdebug_stack_dump_raw_current()
+end
+
+define rbi
+  if ((LINK_ELEMENT*)$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
new file mode 100644
index 0000000000..d9785fad00
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,5 @@
+*.gemspec diff=ruby
+*.rb diff=ruby
+bin/* diff=ruby
+tool/update-deps diff=ruby
+tool/make-snapshot diff=ruby
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000000..9757768786
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,183 @@
+*-*-*.def
+*-*-*.exp
+*-*-*.lib
+*.a
+*.bak
+*.bc
+*.dSYM
+*.dmyh
+*.dylib
+*.elc
+*.i
+*.inc
+*.log
+*.o
+*.obj
+*.orig
+*.pdb
+*.rej
+*.s
+*.sav
+*.swp
+*.yarb
+*~
+.*-*
+.*.list
+.*.time
+.DS_Store
+.ccmalloc
+.ext
+.pc
+.ppack
+.svn
+Makefile
+Makefile.old
+cygruby*.def
+extconf.h
+y.output
+y.tab.c
+
+# /
+/*-fake.rb
+/*.dll
+/*.exe
+/*.res
+/*.pc
+/*.rc
+/*_prelude.c
+/COPYING.LIB
+/ChangeLog-*
+/ChangeLog.pre-alpha
+/ChangeLog.pre1_1
+/Doxyfile
+/GNUmakefile
+/GNUmakefile.old
+/README.atheos
+/README.fat-patch
+/README.v6
+/TAGS
+/archive
+/autom4te*.cache
+/automake
+/beos
+/bmlog-*
+/breakpoints.gdb
+/config.cache
+/config.h
+/config.h.in
+/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
+/exts.mk
+/goruby
+/id.[ch]
+/largefile.h
+/lex.c
+/libruby*.*
+/miniprelude.c
+/miniruby
+/newdate.rb
+/newline.c
+/newver.rb
+/parse.c
+/parse.h
+/patches
+/patches-master
+/pitest.rb
+/ppack
+/prelude.c
+/preview
+/probes.h
+/rbconfig.rb
+/rename2.h
+/repack
+/revision.h
+/riscos
+/rubicon
+/ruby
+/ruby-runner
+/ruby-runner.h
+/ruby-man.rd.gz
+/sizes.c
+/test.rb
+/tmp
+/transdb.h
+/uncommon.mk
+/verconf.h
+/verconf.mk
+/web
+/yasmdata.rb
+
+# /benchmark/
+/benchmark/bmx_*.rb
+/benchmark/fasta.output.*
+/benchmark/wc.input
+
+/enc/*.def
+/enc/*.exp
+/enc/*.lib
+/enc/unicode/data
+
+# /enc/trans/
+/enc/trans/*.c
+/enc/trans/*.def
+/enc/trans/*.exp
+/enc/trans/*.lib
+/enc/trans/.time
+
+# /ext/
+/ext/extinit.c
+
+# /ext/-test-/win32/dln/
+/ext/-test-/win32/dln/dlntest.exp
+/ext/-test-/win32/dln/dlntest.lib
+
+# /ext/dl/callback/
+/ext/dl/callback/callback-*.c
+/ext/dl/callback/callback.c
+
+# /ext/etc/
+/ext/etc/constdefs.h
+
+# /ext/fiddle/
+/ext/fiddle/libffi-*
+
+# /ext/rbconfig/
+/ext/rbconfig/sizeof/sizes.c
+
+# /ext/ripper/
+/ext/ripper/eventids1.c
+/ext/ripper/eventids2table.c
+/ext/ripper/ripper.*
+/ext/ripper/ids1
+/ext/ripper/ids2
+
+# /ext/socket/
+/ext/socket/constants.h
+/ext/socket/constdefs.h
+/ext/socket/constdefs.c
+
+# /gems
+/gems/*.gem
+
+# /spec/
+/spec/mspec
+/spec/rubyspec
+
+# /tool/
+/tool/config.guess
+/tool/config.sub
+
+# /win32/
+/win32/*.ico
+/win32/.time
diff --git a/.indent.pro b/.indent.pro
new file mode 100644
index 0000000000..6a207a0554
--- /dev/null
+++ b/.indent.pro
@@ -0,0 +1,21 @@
+-bap
+-nbbb
+-nbc
+-br
+-nbs
+-ncdb
+-ce
+-cli0.5
+-ndj
+-ei
+-nfc1
+-i4
+-l120
+-lp
+-npcs
+-psl
+-sc
+-sob
+
+-TID
+-TVALUE
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000000..24ce0c9113
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,102 @@
+# Copyright (C) 2011 Urabe, Shyouhei.  All rights reserved.
+#
+# This file is  a part of the programming language  Ruby.  Permission is hereby
+# granted,  to either  redistribute  or  modify this  file,  provided that  the
+# conditions  mentioned in  the file  COPYING are  met.  Consult  the  file for
+# details.
+
+# This is  a Travis-CI  build configuration file.   The list  of configurations
+# available is located in
+#
+#     http://about.travis-ci.org/docs/user/build-configuration/
+#
+# and as Ruby itself is a project written in C language,
+#
+#     http://about.travis-ci.org/docs/user/languages/c/
+#
+# is also a good place to look at.
+
+# Language specification.
+language: c
+sudo: false
+
+# Compilers.  Several  compilers are  provided in Travis,  so we try  them all.
+# The value set here is visible via $CC environment variable.
+compiler:
+  - gcc
+
+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 4'"
+
+# Script is where the test runs.  Note  we just do "make test", not other tests
+# like  test-all, test-rubyspec.   This is  because  they take  too much  time,
+# enough for Travis to shut down the VM as being stalled.
+before_script:
+  - "uname -a"
+  - "uname -r"
+  - "rm -fr .ext autom4te.cache"
+  - "echo $TERM"
+  - "make -f common.mk BASERUBY=ruby MAKEDIRS='mkdir -p' srcdir=. update-config_files"
+  - "autoconf"
+  - "mkdir config_1st config_2nd"
+  - "./configure -C --disable-install-doc --with-gcc=$CC $CONFIG_FLAG"
+  - "cp -pr config.status .ext/include config_1st"
+  - "make reconfig"
+  - "cp -pr config.status .ext/include config_2nd"
+  - "diff -ru config_1st config_2nd"
+  - "make after-update BASERUBY=ruby"
+  - "make -s $JOBS"
+  - "make update-rubyspec"
+script:
+  - "make test TESTOPTS=--color=never"
+  - "make test-all TESTOPTS='-q -j3 --color=never --job-status=normal'"
+  - "make test-rubyspec MSPECOPT=-fm"
+
+# Branch matrix.  Not all branches are Travis-ready so we limit branches here.
+branches:
+  only:
+    - trunk
+    - ruby_2_1
+    - ruby_2_2
+    - ruby_2_3
+    - /^feature\//
+    - /^bug\//
+
+# We want to be notified when something happens.
+notifications:
+  irc:
+    channels:
+      - "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
+    template:
+      - "%{message} by @%{author}: See %{build_url}"
+
+  # Update ruby-head installed on Travis CI so other projects can test against it.
+  webhooks:
+    urls:
+      - "https://rubies.travis-ci.org/rebuild/ruby-head"
+    on_success: always
+    on_failure: never
+
+  email:
+    - ko1c-failure@atdot.net
+    - shibata.hiroshi@gmail.com
+
+# Local Variables:
+# mode: YAML
+# coding: utf-8-unix
+# indent-tabs-mode: nil
+# tab-width: 4
+# fill-column: 79
+# default-justification: full
+# End:
diff --git a/BSDL b/BSDL
new file mode 100644
index 0000000000..a009caefea
--- /dev/null
+++ b/BSDL
@@ -0,0 +1,22 @@
+Copyright (C) 1993-2013 Yukihiro Matsumoto. 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.
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000000..ffdf2dd4b8
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,4 @@
+Please see the [official issue tracker] and wiki [HowToContribute].
+
+[official issue tracker]: https://bugs.ruby-lang.org
+[HowToContribute]: https://bugs.ruby-lang.org/projects/ruby/wiki/HowToContribute
diff --git a/COPYING b/COPYING
index 9043404a83..426810a7fb 100644
--- a/COPYING
+++ b/COPYING
@@ -1,6 +1,6 @@
 Ruby is copyrighted free software by Yukihiro Matsumoto <matz@netlab.jp>.
-You can redistribute it and/or modify it under either the terms of the GPL
-version 2 (see the file GPL), or the conditions below:
+You can redistribute it and/or modify it under either the terms of the
+2-clause BSDL (see the file BSDL), 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
@@ -44,9 +44,9 @@ version 2 (see the file GPL), or the conditions below:
      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/COPYING.ja b/COPYING.ja
index 933cc7cb9a..e50d01c8d1 100644
--- a/COPYING.ja
+++ b/COPYING.ja
@@ -1,51 +1,51 @@
-$BK\%W%m%0%i%`$O%U%j!<%=%U%H%&%'%"$G$9!%(BGPL(the GNU General
-Public License)$B$^$?$O0J2<$K<($9>r7o$GK\%W%m%0%i%`$r:FG[I[$G(B
-$B$-$^$9!%(BGPL$B$K$D$$$F$O(BGPL$B%U%!%$%k$r;2>H$7$F2<$5$$!%(B
+本プログラムはフリーソフトウェアです．2-clause BSDL
+または以下に示す条件で本プログラムを再配布できます
+2-clause BSDLについてはBSDLファイルを参照して下さい．
 
-  1. $BJ#@=$O@)8B$J$/<+M3$G$9!%(B
+  1. 複製は制限なく自由です．
 
-  2. $B0J2<$N>r7o$N$$$:$l$+$rK~$?$9;~$KK\%W%m%0%i%`$N%=!<%9$r(B
-     $B<+M3$KJQ99$G$-$^$9!%(B
+  2. 以下の条件のいずれかを満たす時に本プログラムのソースを
+     自由に変更できます．
 
-     (a) $B%M%C%H%K%e!<%:$K%]%9%H$7$?$j!$:n<T$KJQ99$rAwIU$9$k(B
-         $B$J$I$NJ}K!$G!$JQ99$r8x3+$9$k!%(B
+     (a) ネットニューズにポストしたり，作者に変更を送付する
+         などの方法で，変更を公開する．
 
-     (b) $BJQ99$7$?K\%W%m%0%i%`$r<+J,$N=jB0$9$kAH?%FbIt$@$1$G(B
-         $B;H$&!%(B
+     (b) 変更した本プログラムを自分の所属する組織内部だけで
+         使う．
 
-     (c) $BJQ99E@$rL@<($7$?$&$(!$%=%U%H%&%'%"$NL>A0$rJQ99$9$k!%(B
-         $B$=$N%=%U%H%&%'%"$rG[I[$9$k;~$K$OJQ99A0$NK\%W%m%0%i(B
-         $B%`$bF1;~$KG[I[$9$k!%$^$?$OJQ99A0$NK\%W%m%0%i%`$N%=!<(B
-         $B%9$NF~<jK!$rL@<($9$k!%(B
+     (c) 変更点を明示したうえ，ソフトウェアの名前を変更する．
+         そのソフトウェアを配布する時には変更前の本プログラ
+         ムも同時に配布する．または変更前の本プログラムのソー
+         スの入手法を明示する．
 
-     (d) $B$=$NB>$NJQ99>r7o$r:n<T$H9g0U$9$k!%(B
+     (d) その他の変更条件を作者と合意する．
 
-  3. $B0J2<$N>r7o$N$$$:$l$+$rK~$?$9;~$KK\%W%m%0%i%`$r%3%s%Q%$(B
-     $B%k$7$?%*%V%8%'%/%H%3!<%I$d<B9T7A<0$G$bG[I[$G$-$^$9!%(B
+  3. 以下の条件のいずれかを満たす時に本プログラムをコンパイ
+     ルしたオブジェクトコードや実行形式でも配布できます．
 
-     (a) $B%P%$%J%j$r<u$1<h$C$??M$,%=!<%9$rF~<j$G$-$k$h$&$K!$(B
-         $B%=!<%9$NF~<jK!$rL@<($9$k!%(B
+     (a) バイナリを受け取った人がソースを入手できるように，
+         ソースの入手法を明示する．
 
-     (b) $B5!3#2DFI$J%=!<%9%3!<%I$rE:IU$9$k!%(B
+     (b) 機械可読なソースコードを添付する．
 
-     (c) $BJQ99$r9T$C$?%P%$%J%j$OL>A0$rJQ99$7$?$&$(!$%*%j%8%J(B
-         $B%k$N%=!<%9%3!<%I$NF~<jK!$rL@<($9$k!%(B
+     (c) 変更を行ったバイナリは名前を変更したうえ，オリジナ
+         ルのソースコードの入手法を明示する．
 
-     (d) $B$=$NB>$NG[I[>r7o$r:n<T$H9g0U$9$k!%(B
+     (d) その他の配布条件を作者と合意する．
 
-  4. $BB>$N%W%m%0%i%`$X$N0zMQ$O$$$+$J$kL\E*$G$"$l<+M3$G$9!%$?(B
-     $B$@$7!$K\%W%m%0%i%`$K4^$^$l$kB>$N:n<T$K$h$k%3!<%I$O!$$=(B
-     $B$l$>$l$N:n<T$N0U8~$K$h$k@)8B$,2C$($i$l$k>l9g$,$"$j$^$9!%(B
+  4. 他のプログラムへの引用はいかなる目的であれ自由です．た
+     だし，本プログラムに含まれる他の作者によるコードは，そ
+     れぞれの作者の意向による制限が加えられる場合があります．
 
-     $B$=$l$i%U%!%$%k$N0lMw$H$=$l$>$l$NG[I[>r7o$J$I$KIU$$$F$O(B
-     LEGAL$B%U%!%$%k$r;2>H$7$F$/$@$5$$!%(B
+     それらファイルの一覧とそれぞれの配布条件などに付いては
+     LEGALファイルを参照してください．
 
-  5. $BK\%W%m%0%i%`$X$NF~NO$H$J$k%9%/%j%W%H$*$h$S!$K\%W%m%0%i(B
-     $B%`$+$i$N=PNO$N8"Mx$OK\%W%m%0%i%`$N:n<T$G$O$J$/!$$=$l$>(B
-     $B$l$NF~=PNO$r@8@.$7$??M$KB0$7$^$9!%$^$?!$K\%W%m%0%i%`$K(B
-     $BAH$_9~$^$l$k$?$a$N3HD%%i%$%V%i%j$K$D$$$F$bF1MM$G$9!%(B
+  5. 本プログラムへの入力となるスクリプトおよび，本プログラ
+     ムからの出力の権利は本プログラムの作者ではなく，それぞ
+     れの入出力を生成した人に属します．また，本プログラムに
+     組み込まれるための拡張ライブラリについても同様です．
 
-  6. $BK\%W%m%0%i%`$OL5J]>Z$G$9!%:n<T$OK\%W%m%0%i%`$r%5%]!<%H(B
-     $B$9$k0U;V$O$"$j$^$9$,!$%W%m%0%i%`<+?H$N%P%0$"$k$$$OK\%W(B
-     $B%m%0%i%`$N<B9T$J$I$+$iH/@8$9$k$$$+$J$kB;32$KBP$7$F$b@U(B
-     $BG$$r;}$A$^$;$s!%(B
+  6. 本プログラムは無保証です．作者は本プログラムをサポート
+     する意志はありますが，プログラム自身のバグあるいは本プ
+     ログラムの実行などから発生するいかなる損害に対しても責
+     任を持ちません．
diff --git a/ChangeLog b/ChangeLog
index 7445675c82..1fd1fd9ac1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,23642 +1,8052 @@
-Tue Feb 10 19:40:58 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Sep  9 22:43:29 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-	* eval.c (rb_feature_p): returns found feature name if loading.
-	  [ruby-core:19798]
+	* gems/bundled_gems: sort lines.
 
-	* eval.c (search_required): ditto.
+Fri Sep  9 17:59:46 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Feb  9 17:35:38 2009  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* thread.c (rb_threadptr_raise): set cause from the called thread,
+	  but not from the thread to be interrupted.
+	  [ruby-core:77222] [Bug #12741]
 
-	* win32/win32.c (rb_w32_accept): secure fd before accept because if
-	  error causes in securing, cannot restore the state of accepted
-	  socket.
-	  fixed [ruby-core:19728]
+Fri Sep  9 13:50:05 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Feb  9 13:42:15 2009  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* doc/extension.rdoc, doc/extension.ja.rdoc: fix file name.
+	  pointed out by @takkanm in the RubyKaigi talk.
 
-	* win32/win32.c (ifs_open_socket): should retry without proto_buffer
-	  if cannot find the suitable protocol. a patch from Heesob Park.
-	  fixed [ruby-core:19713]
+Fri Sep  9 13:14:53 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Mon Feb  9 13:40:21 2009  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* News: Announcing update to Unicode version 9.0.0 [ci skip]
 
-	* ext/stringio/stringio.c (strio_ungetc): should allow ungetc at
-	  the top of the buffer.  ref #701
+Fri Sep  9 10:10:00 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Feb  5 09:38:48 2009  NARUSE, Yui  <naruse@ruby-lang.org>
+	* variable.c (rb_const_search): warn with the actual class/module
+	  name which defines the deprecated constant.
 
-	* ext/nkf/nkf-utf8/nkf.c (h_conv): can't guess UTF-8 input in
-	  conversion. [ruby-list:45609]
+	* variable.c (rb_const_search): raise with the actual class/module
+	  name which defines the private constant.
 
-Thu Feb  5 09:03:21 2009  Shugo Maeda  <shugo@ruby-lang.org>
+Thu Sep  8 17:47:18 2016  Kazuki Tsujimoto  <kazuki@callcc.net>
 
-	* lib/rexml/entity.rb (unnormalized): do not call
-	  document.record_entity_expansion if document is nil.
-	  see <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=502535>.
-	  Thanks, Naohisa Goto.  backported from trunk.
+	* array.c (flatten): use rb_obj_class instead of rb_class_of
+	  because rb_class_of may return a singleton class.
+	  [ruby-dev:49781] [Bug #12738]
 
-	* test/rexml/test_document.rb: ditto.
+Thu Sep  8 17:40:15 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Feb  5 08:55:24 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* tool/rbinstall.rb (gem): use the bindir of each gemspec instead
+	  of hardcoded 'bin', since rdoc 5.0.0 overrides it.
 
-	* array.c (rb_ary_join): do not repeat self in a recursive array.
-	  [ruby-dev:37019]
+Thu Sep  8 16:47:03 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-Wed Feb  4 14:26:58 2009  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* eval.c (rb_mod_s_used_modules): rename Module.used_refinements to
+	  Module.used_modules.  [Feature #7418] [ruby-core:49805]
 
-	* dir.c (dir_globs): need taint check.  reported by steve
-	  <oksteev at gmail.com>
+Thu Sep  8 14:21:48 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Feb  3 14:35:26 2009  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+	* ext/psych/psych.gemspec, lib/rdoc/rdoc.gemspec: Use file list instead of
+	  git output. It shows warning message when invoke `make install`
+	  [Bug #12736][ruby-dev:49778]
 
-	* lib/net/pop.rb: check for invalid APOP timestamp. (CVE-2007-1558)
-	  [ruby-dev:36631]
+Thu Sep  8 13:41:46 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* test/net/pop/test_pop.rb: ditto.
+	* insns.def (setclassvariable, setconstant): warn when self is a
+	  refinement.  [Bug #10103] [ruby-core:64143]
 
-Mon Feb  2 20:03:58 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Sep  8 11:29:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* time.c (time_mdump, time_mload): preserves GMT status.
-	  [ruby-core:19252]
+	* hash.c (rb_hash_transform_values, rb_hash_transform_values_bang):
+	  Rename map_v to transform_values.
+	  [Feature #12512] [ruby-core:76095]
 
-Mon Feb  2 11:34:51 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/test_hash.rb: ditto.
 
-	* variable.c (autoload_delete, autoload_file): should not delete
-	  autoload table, since it may be shared with duplicated modules.
-	  [ruby-core:19181]
+Thu Sep  8 10:08:35 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Thu Jan 29 11:54:22 2009  Tadayoshi Funaba  <tadf@dotrb.org>
+	* {ext,test}/openssl: Import Ruby/OpenSSL 2.0.0.beta.2. The full commit
+	  history since v2.0.0.beta.1 can be found at:
+	  https://github.com/ruby/openssl/compare/v2.0.0.beta.1...v2.0.0.beta.2
 
-	* lib/date.rb (today,now): should produce own instances.
-	  [ruby-talk:317020]
+Thu Sep  8 07:23:34 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Wed Jan 28 22:51:55 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/rdoc/*, test/rdoc/*: Update rdoc-5.0.0.beta2
+	  Fixed ri parse defect with left-hand matched classes.
+	  https://github.com/rdoc/rdoc/pull/420
 
-	* eval.c (rb_mod_modfunc): method undefined in included module
-	  may not have nd_body.  [ruby-core:18738]
+Thu Sep  8 01:12:47 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-Wed Jan 28 20:53:27 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* eval.c (rb_mod_s_used_refinements): new method
+	  Module.used_refinements.  based on the patch by Charlie
+	  Somerville.  [Feature #7418] [ruby-core:49805]
 
-	* marshal.c (marshal_dump): fixed for check_dump_arg.
+Wed Sep  7 17:50:38 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Jan 27 17:30:11 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* include/ruby/util.h (setenv): remove POSIX-noncompliant
+	  definition with 2 arguments.
 
-	* marshal.c (marshal_dump): initializes dump_arg before any funcall.
-	  [ruby-dev:36648]
+Wed Sep  7 17:35:37 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Tue Jan 27 15:17:35 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* unicode/8.0.0/casefold.h, name2ctype.h, unicode/data/8.0.0:
+	  removing directories/files related to Unicode version 8.0.0
 
-	* ext/socket/socket.c (host_str): numeric address should be unsigned.
-	  [ruby-core:18971]
+Wed Sep  7 17:21:55 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Jan 26 11:12:03 2009  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* lib/timeout.rb (Timeout#timeout): add custom error message
+	  argument.  [Feature #11650]
 
-	* lib/tmpdir.rb: setup buffer with nul characters instead of spaces.
-	  fixed [ruby-dev:36493]
+Wed Sep  7 17:13:05 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Sun Jan 25 00:07:23 2009  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* common.mk: Updated Unicode version to 9.0.0 [Feature #12513]
 
-	* lib/rexml/formatters/pretty.rb (REXML::Formatters::Pretty#wrap):
-	  abandon wrapping if the line contains no space.  [ruby-dev:36045]
-	  fix: #342
+	* unicode/9.0.0/casefold.h, name2ctype.h, unicode/data/9.0.0:
+	  new directories/files for Unicode version 9.0.0
 
-Sun Jan 25 00:02:23 2009  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+Wed Sep  7 16:00:45 2016  Tanaka Akira  <akr@fsij.org>
 
-	* lib/matrix.rb (Vector#eql?): typo of the method name as "eqn?".
-	  (Vector#eqn?): removed. Defined by mistake.
-	  Fixes [ruby-dev:36294]. Reported by weda <weda AT
-	  issp.u-tokyo.ac.jp> and an anonymous user.
+	* lib/open-uri.rb: Allow http to https redirection.
+	  Note that https to http is still forbidden.
+	  [ruby-core:20485] [Feature #859] by Roman Shterenzon.
 
-	* test/matrix/test_matrix.rb: added.
+Wed Sep  7 14:56:59 2016  Kazuki Tsujimoto  <kazuki@callcc.net>
 
-	* test/matrix/test_vector.rb: added.
+	* lib/csv.rb (CSV::{Row,Table}#{each,delete_if}): returns an enumerator
+	  if no block is given. [ruby-core:75346] [Feature #12347]
 
-Fri Jan 23 11:49:45 2009  Shugo Maeda  <shugo@ruby-lang.org>
+	* test/csv/test_row.rb: add test for above.
 
-	* NEWS: added an entry for REXML.
+	* test/csv/test_table.rb: ditto.
 
-	* lib/rexml/document.rb: fixed typo.
+Wed Sep  7 14:50:01 2016  Kazuki Tsujimoto  <kazuki@callcc.net>
 
-Fri Jan 23 11:49:45 2009  Shugo Maeda  <shugo@ruby-lang.org>
+	* gems/bundled_gems: update to power_assert 0.3.1.
 
-	* lib/rexml/document.rb: limit entity expansion.  Thanks, Luka
-	  Treiber, Mitja Kolsek, and Michael Koziarski.  backported from
-	  trunk r19033, r19317, r19318.
+Wed Sep  7 12:16:09 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* lib/rexml/entity.rb: ditto.
+	* ext/psych/*, test/psych/*: Update psych-2.1.1
+	  This version fixed following pull requests.
+	  https://github.com/tenderlove/psych/pull/284
+	  https://github.com/tenderlove/psych/pull/276
 
-	* test/rexml/test_document.rb: ditto.
+Wed Sep  7 11:51:06 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Jan 22 15:19:39 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/rdoc/*, test/rdoc/*: Update rdoc-5.0.0.beta1
+	  This version is mostly same as r56072. It contains to remove code
+	  for Ruby 1.8
 
-	* marshal.c (marshal_load): arg.data is no longer a VALUE but a
-	  st_table, and freed in load_ensure.  pointed out by pegacorn.
-	  [ruby-dev:37008]
+Tue Sep  6 09:23:06 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Jan 22 15:19:39 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/rdoc/rdoc.gemspec: partly reverted for default gem installer.
+	  upstream configuration is not working on ruby core repository.
 
-	* gc.c (rb_mark_set): new function to mark keys.
+Mon Sep  5 19:35:22 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* marshal.c (struct dump_arg, struct load_arg): added wrappers to mark
-	  data entries.  backport from trunk r13527,r13528,r13961,r16533.
-	  [ruby-dev:36082]
+	* lib/rdoc/*, test/rdoc/*: Update rdoc/rdoc master(f191513)
+	  https://github.com/rdoc/rdoc/blob/master/History.rdoc#423--2016--
+	  https://github.com/rdoc/rdoc/blob/master/History.rdoc#422--2016-02-09
 
-Wed Jan 21 11:12:55 2009  NAKAMURA Usaku  <usa@ruby-lang.org>
+Sun Sep  4 00:17:55 2016  Sho Hashimoto  <sho-h@ruby-lang.org>
 
-	* win32/win32.c (filetime_to_timeval): new function, split from
-	  gettimeofday().
+	* proc.c: [DOC] fix Object#define_singleton_method and
+	  main.define_method return value. [ci skip]
 
-	* win32/win32.c (gettimeofday): use above function.
+Sat Sep  3 11:28:29 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* win32/win32.c (filetime_to_unixtime): ditto. [ruby-dev:36135]
+	* thread_pthread.c (ruby_init_stack): check stack bounds even if
+	  get_main_stack succeeded, on the "co-routine" case.
+	  https://github.com/ruby/ruby/commit/53953ee#commitcomment-18887413
 
-Wed Jan 21 11:12:55 2009  NAKAMURA Usaku  <usa@ruby-lang.org>
+Fri Sep  2 16:06:59 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* win32/win32.c (gettimeofday): tv_usec is usec, not msec.
-	  [ruby-dev:36094]
+	* internal.h (MEMO_V1_SET, MEMO_V2_SET): fix typos.  use the macro
+	  parameter, not the local variable.
 
-Wed Jan 21 11:12:55 2009  NAKAMURA Usaku  <usa@ruby-lang.org>
+Fri Sep  2 00:55:11 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* win32/win32.c (gettimeofday): calc tv_sec and tv_usec from system
-	  time by myself. [ruby-dev:36084]
+	* ext/extmk.rb (timestamp_file): move extmk.rb specific tricks
+	  from lib/mkmf.rb.  keep RUBYCOMMONDIR prefix not to conflict
+	  with a timestamp file in the toplevel.
 
-Wed Jan 21 11:12:55 2009  NAKAMURA Usaku  <usa@ruby-lang.org>
+Thu Sep  1 14:24:16 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* win32/win32.c (gettimeofday): shouldn't use mktime(2) because it's
-	  buggy about handling summer time.
-	  reported by Yoshikawa <yoshixool AT gmail.com> at [ruby-dev:36071]
+	* ext/extmk.rb (gems): move dirty hacks for bundled gems from
+	  mkmf.rb.
 
-Tue Jan 20 12:23:38 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/mkmf.rb (create_makefile): yield all configuration strings.
 
-	* lib/scanf.rb (Scanf::FormatSpecifier#initialize): %i should accept
-	  single digit decimal.  [ruby-core:18355]
+Wed Aug 31 17:39:19 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Jan 19 18:25:28 2009  Tanaka Akira  <akr@fsij.org>
+	* ext/extmk.rb (create_makefile): make gem.build_complete file
+	  under TARGET_SO_DIR and install it only when the gem build
+	  succeeded.  [ruby-core:77057] [Bug #12681]
 
-	* configure.in (rb_cv_broken_glibc_ia64_erfc): renamed from
-	  rb_broken_glibc_ia64_erfc.
-	  [ruby-core:18228]
+Wed Aug 31 15:36:10 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Jan 17 12:16:10 2009  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* ext/extmk.rb: move TARGET_SO_DIR stuffs to mkmf.rb.
 
-	* random.c (Init_Random): always initialize seed.
+	* lib/mkmf.rb (create_makefile): create target shared object files
+	  under $(TARGET_SO_DIR) which is $sodir if it is defined with
+	  $extout.  [ruby-core:77058] [Bug #12681]
 
-Fri Jan 16 10:59:31 2009  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Wed Aug 31 01:56:55 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
 
-	* class.c (clone_method): should copy cbase in cref as well.
-	  [ruby-dev:35116]
+	* doc/extension.ja.rdoc: [DOC] Fix a typo. [ci skip]
 
-	* node.h (NEW_CREF): new NEW_ macro.
+Wed Aug 31 00:52:23 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* eval.c (PUSH_CREF): use NEW_CREF().
+	* ext/extmk.rb: make the gems target directory under the expanded
+	  name.  [ruby-core:77102] [Bug #12714]
 
-Thu Jan 15 14:34:32 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Aug 30 15:27:27 2016  Kouhei Yanagita  <yanagi@shakenbu.org>
 
-	* gc.c (STACK_LEVEL_MAX, ruby_stack_length): returns size_t.
-	  [ruby-core:18207]
-Wed Jan 14 10:39:56 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/json/lib/json/add/ostruct.rb (OpenStruct.json_create):
+	  Correct documentation, fix the name of values.  [Fix GH-1421]
 
-	* stable/ext/socket/socket.c (NI_MAXHOST, NI_MAXSERV): fixed invalid
-	  preprocessor directives.  a patch from Peter Bowen at
-	  [ruby-core:18211].
+Tue Aug 30 14:53:34 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Tue Jan 13 04:40:30 2009  Shugo Maeda  <shugo@ruby-lang.org>
+	* io.c (nogvl_fsync, nogvl_fdatasync): on Windows, just ignore if the
+	  fd is associated to non-disk device.  if call fsync and/or fdatasync
+	  with such fds, it causes Errno::EBADF exception and the behavior is
+	  incompatible with ruby 2.1 and earlier unintentionally introduced.
 
-	* lib/net/ftp.rb (login): raise FTPReplyError if passwd or acct
-	  is not supplied.  backported from trunk.  fixed [ruby-core:18058].
+Tue Aug 30 03:38:35 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Mon Jan 12 00:23:37 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_dump.c (backtrace): use rip in the saved context for the case
+	  the SIGSEGV is received when the process is in userland.
+	  Note that ip in the stack should be used if the signal is received
+	  when it is in kernel (when it is calling syscall) [Bug #12711]
 
-	* gc.c (gc_sweep, obj_free, run_final): defer finalizers of IO and
-	  Data.  [ruby-dev:35578]
+Sat Aug 27 10:26:14 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* gc.c (rb_gc_call_finalizer_at_exit): self-referencing finalizers
-	  cannot be invoked.  [ruby-dev:35681]
+	* array.c (rb_ary_concat_multi): take multiple arguments.  based
+	  on the patch by Satoru Horie.  [Feature #12333]
 
-Sun Jan 11 11:33:27 2009  Shugo Maeda  <shugo@ruby-lang.org>
+	* string.c (rb_str_concat_multi, rb_str_prepend_multi): ditto.
 
-	* lib/net/ftp.rb (chdir): handle 5xx errors correctly.
-	  backported from trunk.  fixed [ruby-core:18057].
+Thu Aug 25 00:42:31 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Jan  9 19:25:25 2009  Shugo Maeda  <shugo@ruby-lang.org>
+	* win32/file.c (append_wstr): remove a codepage argument, and use
+	  INVALID_CODE_PAGE for conversion by econv.
 
-	* lib/net/imap.rb (disconnect): do not refer SSL::SSLSocket for
-	  environments without OpenSSL.  backported from trunk.
-	  fixed [ruby-dev:35755].
+	* win32/file.c (append_wstr): exclude the terminator from the
+	  result length when input len == -1.
 
-Thu Jan  8 13:24:23 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Aug 24 22:41:30 2016  Kouhei Sutou  <kou@cozmixng.org>
 
-	* parse.y (deferred_nodes, compstmt, arg, fixup_nodes, range_op): fix
-	  up fixnum range literal in conditional as automagical line number
-	  comparison.  [ruby-core:12124], [ruby-dev:35731]
+	* gc.c (gc_reset_malloc_info): Remove too much ";".
 
-Wed Jan  7 10:09:46 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Aug 24 20:07:57 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* eval.c (timeofday): use monotonic clock.  based on a patch
-	  from zimbatm <zimbatm@oree.ch> in [ruby-core:16627].
+	* include/ruby/defines.h (ALWAYS_INLINE): Add alternative definition.
+	  Fix compile error with compilers that do not have force inline
+	  attribute, including old version of fcc on Solaris 10.
+	  [ruby-dev:49773] [Bug #12701]
 
-Tue Jan  6 09:03:35 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Aug 24 16:56:26 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* parse.y (yylex): 8 and 9 in octal integer should cause compile
-	  error.  [ruby-dev:35729]
+	* .gdbinit: follow r55766's VM change.
 
-Mon Jan  5 11:14:39 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Aug 24 12:57:56 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* eval.c (rb_thread_schedule): runs deferred finalizers.
+	* object.c (rb_mod_initialize, rb_class_initialize): [DOC] these
+	  methods do not invoke module_eval/class_eval, just eval the
+	  given block under the new module/class but sharing the context
+	  with the surrounding scope like those methods.
+	  [ruby-core:77023] [Bug #12696]
 
-	* gc.c (gc_sweep): sets rb_thread_pending to run deferred finalizers.
+Tue Aug 23 10:34:40 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* rubysig.h (CHECK_INTS): now checks rb_thread_pending even on
-	  platforms where setitimer is not available.  [ruby-core:18045]
+	* test/psych/test_psych.rb (test_load_file_with_fallback): fix
+	  Tempfile leak.  https://github.com/tenderlove/psych/pull/288
 
-Mon Jan  5 11:14:39 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Aug 23 10:15:01 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* rubysig.h (CHECK_INTS): gives the chance to perform to deferred
-	  finalizers before explicit GC.start or the process termination.
-	  [ruby-core:18045]
-
-Sun Jan  4 04:49:01 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.c (rb_w32_telldir): just returns loc.
-
-	* win32/win32.c (rb_w32_rewinddir): needs to intialize loc.
-	  [ruby-core:18041]
-
-Sun Jan  4 04:45:26 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.c (rb_w32_select): recalc the rest of timeout for each
-	  iterations.  [ruby-core:18015]
-
-Fri Jan  2 03:08:47 2009  Kouhei Sutou  <kou@cozmixng.org>
-
-	* test/rss/: use PNG instead of zlib as binary data. [ruby-dev:35666]
-
-Tue Nov 11 01:07:32 2008  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* configure.in: fix SEGV on Mac OS X 10.5.3 with --enable-pthread.
-	  a patch from Wataru Kimura in Bug #193 [ruby-core:17333].
-
-Mon Aug 11 09:37:17 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/dl/dl.c (rb_str_to_ptr): should propagate taint to dlptr.
-
-	* ext/dl/dl.c (rb_ary_to_ptr): ditto.
-
-	* ext/dl/sym.c (rb_dlsym_call): should check taint of DLPtrData as
-	  well.
-
-Fri Aug  8 10:53:52 2008  Tanaka Akira  <akr@fsij.org>
-
-	* lib/resolv.rb: randomize source port and transaction id.
-	  CVE-2008-1447.
-
-	* lib/resolv-replace.rb (UDPSocket#bind): don't resolv host if host is
-	  "".
-
-Mon Aug  4 14:49:35 2008  URABE Shyouhei  <shyouhei@ruby-lang.org>
-
-	* lib/net/smtp.rb (Net::SMTP::rcptto): fix a typo. a patch from
-	  Masao Takaku <masao at nii.ac.jp>
-	  fix [ruby-dev:35489].
-
-Mon Aug  4 14:13:15 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* regex.c (xmalloc, xrealloc, xfree): not to use ruby managed memory.
-
-	* regex.c (DOUBLE_STACK, re_compile_fastmap0, re_adjust_startpos),
-	  (re_search, re_match_exec): check if failed to allocate memory.
-
-Mon Aug  4 13:53:42 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* bignum.c (rb_big2str0, bigsqr): made interruptible.  [ruby-Bugs-20622]
-
-Mon Aug  4 13:31:41 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* numeric.c (check_uint, rb_num2uint, rb_fix2uint): fixed wrong check
-	  about 64bit positive value.
-Mon Aug  4 13:31:41 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* numeric.c (check_uint, rb_num2uint, rb_fix2uint): strict check.
-	  fixed [ruby-dev:33683]
-
-Thu Jul 17 21:42:07 2008  URABE Shyouhei  <shyouhei@ruby-lang.org>
-
-	* lib/net/smtp.rb (Net::SMTP::start): revert to avoid RFC2821
-	  violation. [ruby-dev:35487]
-
-Thu Jul 17 21:32:49 2008  Tanaka Akira  <akr@fsij.org>
-
-	* string.c (rb_str_format_m): make tmp volatile to avoid possible GC
-	  problem.
-
-Thu Jul 17 21:30:55 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse.rb (OptionParser#environment): requires shellwords.
-	  [ruby-dev:35466]
-
-Thu Jul 17 02:05:10 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/xmlrpc/client.rb (XMLRPC::Client#do_rpc): requires
-	  webrick/cookie.  [ ruby-Bugs-21139 ]
-
-Thu Jul 17 01:38:31 2008  Yusuke Endoh  <mame@tsg.ne.jp>
-
-	* ext/zlib/zlib.c (rb_gzfile_set_mtime): fix typo.  [ruby-core:17713]
-
-Sun Jul 13 00:08:16 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/ipaddr.rb (IPAddr#initialize): get rid of ArgumentError in
-	  IPAddr#to_range.  a patch from okkez <okkez000 AT gmail.com> in
-	  [ruby-dev:35091].
-
-Sun Jul 13 00:04:38 2008  Tanaka Akira  <akr@fsij.org>
-
-	* configure.in (erfc): erfc of glibc comes with Debian GNU/Linux Etch
-	  on IA64 is broken.  erfc(10000.0) aborts.
-	  use missing/erf.c instead.
-	  http://sources.redhat.com/ml/libc-hacker/2005-08/msg00008.html
-
-Thu Jul 10 18:50:48 2008  Tanaka Akira  <akr@fsij.org>
-
-	* common.mk (SPEC_GIT_BASE): update RubySpec GIT URL.
-
-Thu Jul 10 18:46:28 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_file_s_extname): fix for file name with spaces.
-	  [ruby-talk:307404]
-
-Thu Jul 10 18:42:37 2008  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/erb.rb (PercentScanner#scan): fix %% line bug. [ruby-core:17491]
-
-	* test/erb/test_erb.rb (test_percent): ditto.
-
-Thu Jul 10 18:40:22 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/net/ftp.rb (Net::FTP#sendport): use divmod.  [ruby-core:17557]
-
-Thu Jul 10 18:36:53 2008  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* ruby.c: Mac OS X needs origargc times of '\0' in
-	  origargv. [ruby-dev:35308]
-
-Thu Jul 10 13:53:08 2008  Tanaka Akira  <akr@fsij.org>
-
-	* include/ruby/ruby.h (POSFIXABLE): use FIXNUM_MAX+1 instead of
-	  FIXNUM_MAX to make it possible to convert to double accurately.
-	  It assumes FLT_RADIX is 2.
-	  fix RubyForge bug #14102.
-	  backported from 1.9.
-
-Mon Jul  7 16:21:38 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/net/smtp.rb (Net::SMTP::start): use 'localhost' instead of
-	  'localhost.localdomain'.  [ruby-dev:35333]
-
-	* lib/net/smtp.rb (Net::SMTP::SMTP.start): ditto.
-
-Mon Jul  7 15:02:13 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_longjmp): duplicate the thrown exception to set backtrace
-	  if it was frozen.  clear all raised flags.
-
-	* eval.c (stack_check): leave clearing flag to rb_longjmp.
-
-	* eval.c (rb_thread_set_raised, rb_thread_reset_raised): use generic
-	  flags.
-
-	* eval.c (Init_Proc), gc.c (Init_GC): freeze preallocated special exceptions.
-
-	* gc.c (rb_memerror): use thread raised flag instead of static flag,
-	  and raise nomem_error without backtrace if failed to make backtrace.
-	  [ruby-dev:34724]
-
-	* gc.c (ruby_xmalloc): increase malloc_increase only if malloc
-	  succeeds.  failed malloc size can be huge.  it may increase
-	  malloc_limit too big which cause less GC and memory full.
-	  (ruby_xrealloc): ditto.
-
-Mon Jul  7 12:23:05 2008  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/win32ole.c: avoid creating Ruby object during
-	  GC. thanks to arton <artonx AT yahoo.co.jp>. [ruby-dev:35313]
-
-	* ext/win32ole/tests: add test_win32ole_event.rb, remove
-	  testOLEEVENT.rb
-
-	* ext/win32ole/tests/testWIN32OLE.rb(test_convert_bignum):
-	  fix test.
-
-Mon Jul  7 12:23:05 2008  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* gc.c: add rb_during_gc(). based on a patch from arton <artonx AT
-	  yahoo.co.jp> at [ruby-dev:35313].   
-
-	* intern.h: ditto.
-
-Thu Jul  3 20:13:20 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* marshal.c (w_object, marshal_dump, r_object0, marshal_load): search
-	  public methods only.  [ruby-core:17283]
-
-	* object.c (convert_type): ditto.
-
-	* lib/singleton.rb (Singleton#_dump): conversion method should be
-	  public.
-
-Wed Jul  2 19:06:43 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/cgi.rb (CGI::QueryExtension.read_multipart): blanks inside
-	  double quotes are allowed.  [ruby-list:45140]
-
-Wed Jul  2 19:03:37 2008  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (num_coerce): call rb_Float(x) first.  don't depend on
-	  evaluation order of function arguments.
-
-Wed Jul  2 18:57:19 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/syslog/syslog.c (syslog_write): syslog operations should be
-	  protected from $SAFE level 4.  a patch from Keita Yamaguchi
-	  <keita.yamaguchi at gmail.com>.
-
-	* ext/syslog/syslog.c (mSyslog_close): ditto.
-
-	* ext/syslog/syslog.c (mSyslog_set_mask): ditto.
-
-Wed Jul  2 18:26:20 2008  Tanaka Akira  <akr@fsij.org>
-
-	* math.c (domain_check): fix preprocess condition.
-
-Wed Jul  2 18:22:52 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/tmpdir.rb (@@systmpdir): prior LOCAL_APPDATA if possible, and
-	  should be clean.  based on a patch from arton <artonx AT
-	  yahoo.co.jp> at [ruby-dev:35269]
-
-Wed Jul  2 18:16:19 2008  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/win32ole.c (date2time_str): fix the overflow in
-	  some situation. [ruby-bugs-20793]
-
-Tue Jul  1 15:11:14 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* array.c (rb_ary_fill): check if beg is too big.
-
-Mon Jun 30 20:35:32 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (str_buf_cat): check for self concatenation.
-
-Sun Jun 29 21:39:54 2008  Tanaka Akira  <akr@fsij.org>
-
-	* eval.c (rb_obj_respond_to): use RTEST to test the result of
-	  respond_to? method.
-
-Sun Jun 29 21:20:17 2008  URABE Shyouhei  <shyouhei@ruby-lang.org>
-
-	* array.c (rb_ary_fill): (compatibility) do not raise
-	  ArgumentError on negative length.  This behaviour shall change
-	  in a future release.
-
-Sun Jun 29 20:08:11 2008  Tanaka Akira  <akr@fsij.org>
-
-	* time.c (time_timeval): fix rounding negative float.
-
-Sun Jun 29 19:19:08 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/inlinetest.rb (InlineTest.in_progname): workaround for frozen
-	  $0.  [ruby-dev:35261]
-
-	* lib/test/unit/ui/console/testrunner.rb (TestRunner#finished): ditto.
-
-Sun Jun 29 19:19:08 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby.c (set_arg0, ruby_prog_init): freeze $0.  a patch from Keita
-	  Yamaguchi <keita.yamaguchi at gmail.com>.
-
-Sun Jun 29 18:33:33 2008  Tanaka Akira  <akr@fsij.org>
-
-	* process.c: include sys/resource.h if HAVE_SYS_RESOURCE_H is defined.
-	  pointed by TOYOFUKU Chikanobu.  [ruby-dev:35258]
-
-Sun Jun 29 18:26:01 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* variable.c (rb_f_trace_var): should not be allowed at safe level 4.  
-	  a patch from Keita Yamaguchi <keita.yamaguchi at gmail.com>.
-
-	* eval.c (rb_call0): wrong condition to check insecure method.
-	  a patch from Keita Yamaguchi <keita.yamaguchi at gmail.com>.
-
-Sun Jun 29 18:22:52 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* array.c (rb_ary_fill): not depend on unspecified behavior at integer
-	  overflow.  reported by Vincenzo Iozzo <snagg AT openssl.it>.
-
-Sun Jun 29 18:22:06 2008  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/win32ole.c(ole_invoke): fix memory leak.
-	  [ruby-bugs-20792]
-
-Sun Jun 29 18:19:11 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* eval.c (PUSH_FRAME, PUSH_CLASS): Add volatile to avoid a
-	  possible optimization bug on OS X/PPC.  This at least makes
-	  build with gcc -O1 and `make test' pass.
-
-Sun Jun 29 17:24:43 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/rdoc/parsers/parse_rb.rb (RDoc#collect_first_comment): skip
-	  magic comment.
-
-Sun Jun 29 17:22:09 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/stringio/stringio.c (strio_each, strio_readlines): IO#each and
-	  IO#readlines do not affect $_.  [ruby-core:17277]
-
-Sun Jun 29 17:19:59 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/stringio/stringio.c (strio_readline, strio_each)
-	  (strio_readlines): set lastline.  [ruby-core:17257]
-
-Sun Jun 29 17:15:49 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/openssl/ossl.h: include winsock.h if USE_WINSOCK2 is not defined.
-	  a patch from arton <artonx at yahoo.co.jp> in [ruby-dev:35078]
-
-Sun Jun 29 17:09:48 2008  wanabe  <s.wanabe@gmail.com>
-
-	* util.c (ruby_strtod): ruby_strtod don't allow a trailing
-	  decimal point like "7.". [ruby-dev:34835] [ruby-dev:35009]
-
-Sat Jun 28 19:23:40 2008  URABE Shyouhei  <shyouhei@ruby-lang.org>
-
-	* class.c (clone_method): use rb_copy_node_scope.
-	  fixed [ruby-list:45102]
-	  fixed [ruby-core:17393]
-
-Sat Jun 28 18:49:50 2008  URABE Shyouhei  <shyouhei@ruby-lang.org>
-
-	* class.c: revert to r15855.
-
-Fri Jun 20 18:25:18 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_str_buf_append): should infect.
-
-Fri Jun 20 16:33:09 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* array.c (rb_ary_store, rb_ary_splice): not depend on unspecified
-	  behavior at integer overflow.
-
-	* string.c (str_buf_cat): ditto.
-
-Wed Jun 18 22:24:46 2008  URABE Shyouhei  <shyouhei@ruby-lang.org>
-
-	* array.c (ary_new, rb_ary_initialize, rb_ary_store,
-	  rb_ary_aplice, rb_ary_times): integer overflows should be
-	  checked. based on patches from Drew Yao <ayao at apple.com>
-	  fixed CVE-2008-2726
-
-	* string.c (rb_str_buf_append): fixed unsafe use of alloca,
-	  which led memory corruption. based on a patch from Drew Yao
-	  <ayao at apple.com> fixed CVE-2008-2726
-
-	* sprintf.c (rb_str_format): backported from trunk.
-
-	* intern.h: ditto.
-
-Tue Jun 17 15:09:46 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (file_expand_path): no need to expand root path which has no
-	  short file name.  [ruby-dev:35095]
-
-Sun Jun 15 19:27:40 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* configure.in: Fix $LOAD_PATH.  Properly expand vendor_ruby
-	  directories; submitted by Takahiro Kambe <taca at
-	  back-street.net> in [ruby-dev:35099].
-
-Mon Jun  9 17:56:30 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/set.rb (Set#delete_if): Call to_a.
-	  (SortedSet#delete_if, TC_SortedSet#test_sortedset): Use super to
-	  yield elements in sorted order; [ruby-core:17144] by Arthur
-	  Schreiber.
-	  (SortedSet#each, SortedSet#each, TC_Set#test_each)
-	  (TC_SortedSet#test_sortedset): Return self; [ruby-dev:35002] by
-	  Arthur Schreiber.
-
-Mon Jun  9 03:28:05 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/zlib/zlib.c (rb_deflate_initialize, Init_zlib): Fix up
-	  initialize_copy; [ruby-list:45016], [ruby-list:45018].
-
-Mon Jun  9 03:26:03 2008  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* NEWS: Mention new constants.
-
-Mon Jun  9 03:24:18 2008  Tanaka Akira  <akr@fsij.org>
-
-	* hash.c (hash_i): make Hash#hash order insensitive.
-
-Mon Jun  9 03:22:43 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (VENDOR_DIR): use LIBDIR instead of PREFIX as well as
-	  SITE_DIR.  a patch from Richard Brown <rbrown AT exherbo.org> in
-	  [ruby-core:17129].
-
-Mon Jun  9 03:21:20 2008  Tanaka Akira  <akr@fsij.org>
-
-	* gc.c (os_obj_of): assure to not free the scanning heap.
-
-Mon Jun  9 03:20:12 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* io.c (rb_open_file, rb_io_s_sysopen): fmode should be unsigned int.
-	  fixed [ruby-dev:34979]
-
-Fri Jun  6 21:16:55 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/Makefile.sub (COMMON_HEADERS): include ws2tcpip.h.
-
-	* ext/socket/addrinfo.h (addrinfo, getaddrinfo, getnameinfo,
-	  freehostent, freeaddrinfo): undef before define because these are
-	  macros in some versions of Windows SDK.
-
-	* win32/setup.mak: maybe commit miss.
-
-Fri Jun  6 19:34:22 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* mkconfig.rb: hide build path from rbconfig.rb.
-
-	* util.c (ruby_strtod, dtoa): initialize more variables for error
-	  handling.
-
-	* io.c (rscheck), marshal.c (w_nbyte, w_bytes, w_unique),
-	  (path2class, path2module): constified.
-
-	* pack.c (pack_unpack), process.c (rb_syswait): suppress warnings.
-
-	* suppress warnings on cygwin, mingw and mswin.
-
-Fri Jun  6 19:23:53 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (file_expand_path): fix for non-existent files and SFN of
-	  symlinks.  [ruby-talk:303736]
-
-Fri Jun  6 18:25:43 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/iconv: Tests fixed.
-
-Fri Jun  6 17:04:56 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* win32/win32.h: include ws2tcpip.h. fixed [ruby-Bugs-20528]
-
-	* lib/time.rb (Time.xmlschema): don't use float.  fix
-	  http://rubyforge.org/tracker/index.php?func=detail&group_id=426&atid=1698&aid=20504
-
-	* object.c (rb_obj_alloc): RDoc updated.  a patch from Gaston
-	  Ramos <ramos.gaston at gmail.com> in [ruby-core:17073].
-
-	* lib/rdoc.rb: massive spelling correction patch from Evan Farrar
-	  <evanfarrar at gmail.com> in [ruby-doc:1382] applied.
-
-	* ext/openssl/ossl_ssl_session.c (ossl_ssl_session_initialize):
-	  Add a null check for ssl; submitted by akira yamada
-	  in [ruby-dev:34950].
-
-	* ext/openssl/ossl_ssl.c (Init_ossl_ssl): Define OP_NO_TICKET if
-	  SSL_OP_NO_TICKET is present; submitted by akira yamada
-	  in [ruby-dev:34944].
-
-	* test/openssl/test_ssl.rb (OpenSSL#test_server_session): Add a
-	  workaround for the case where OpenSSL is configured with
-	  --enable-tlsext; submitted by akira yamada in [ruby-dev:34944].
-
-Fri Jun  6 16:58:23 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/iconv/iconv.c (iconv_iconv): fix for length argument and now
-	  allows range.  [ruby-core:17092] [ruby-core:17115]
-
-Wed Jun  4 17:22:30 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* NEWS: Fix typos and move misplaced entries.
-	  NEWS: Somehow optflags and warnflags were not actually included
-	  in this release.
-
-Tue Jun  3 19:33:22 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* enumerator.c (enumerator_init_copy): Take care of
-	  initialize_copy as well as initialize.
-
-	* test/ruby/test_enumerator.rb: Pull in the test suite for
-	  enumerator from trunk.
-
-Tue Jun  3 12:51:57 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* enumerator.c (enumerator_allocate, enumerator_ptr): Properly
-	  detect if the object is initialized and raise error when
-	  appropriate.
-	  (enumerator_initialize): Fix a typo in rdoc. [ruby-core:17052]
-
-Tue Jun  3 10:16:40 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/erb.rb (ERB::Compiler::TrimScanner#scan_line): Fix a bug
-	  where tokens are not yilelded one by one.
-	  (ERB::Compiler::TrimScanner#explicit_trim_line): Fix without-
-	  strscan problems. [ruby_core:17028].
-
-	* test/erb/test_erb.rb (TestERBCore#_test_01)
-	  (TestERBCore#test_02_safe_04): The expected value should come
-	  first for assert_equal().
-	  (TestERBCoreWOStrScan): Add test class for without-strscan.
-
-Mon Jun  2 19:47:16 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/delegate.rb (DelegateClass, Delegator#respond_to?):
-	  respond_to? must take optional second argument.  This was a
-	  latent bug exposed by a recent internal change of marshal.c to
-	  call respond_to? with a second argument; submitted by Jeremy
-	  Kemper <jeremy at bitsweat.net> in [ruby-core:17045].
-
-Sat May 31 23:53:35 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* .: Release as Ruby 1.8.7.
-
-Sat May 31 23:33:34 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* README, README.ja: Add a note about default C flags.
-
-Sat May 31 22:11:15 2008  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* version.c (ruby_description, ruby_copyright): backported from
-	  1.9. bug#19002, [ruby-dev:34883]
-
-	* error.c (report_bug): uses ruby_description.
-
-Sat May 31 20:56:04 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* array.c (rb_ary_delete_if): should return enumerator if no block
-	  is given.  [ruby-dev:34901]
-
-Sat May 31 18:28:17 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* suppress warnings with -Wwrite-string.
-
-Sat May 31 15:58:08 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* Makefile.in, configure.in (warnflags): defaulted to -Wall
-	  -Wno-parentheses with gcc.  [ruby-dev:34810]
-
-Fri May 30 05:28:18 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* enum.c (count_i, count_iter_i, count_all_i): add prototypes for VC.
-
-Fri May 30 04:32:07 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* enum.c (count_i, count_iter_i): Sync with trunk.
-	  enum.c (enum_count, count_all_i, Init_Enumerable),
-	  array.c (rb_ary_count): Sync with trunk.  If no argument or
-	  block is given, count the number of all elements.
-
-Fri May 30 03:12:18 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/openssl/ossl_bn.c (ossl_bn_s_rand, ossl_bn_s_pseudo_rand):
-	  Int should be enough here.
-
-Fri May 30 02:35:00 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/openssl/ossl_bn.c (ossl_bn_s_rand, ossl_bn_s_pseudo_rand),
-	  ext/openssl/ossl_pkey_dh.c (ossl_dh_s_generate)
-	  (ossl_dh_initialize),
-	  ext/openssl/ossl_pkey_dsa.c (ossl_dsa_s_generate),
-	  ext/openssl/ossl_rand.c (ossl_rand_bytes)
-	  (ossl_rand_pseudo_bytes, ossl_rand_egd_bytes),
-	  ext/openssl/ossl_x509store.c (ossl_x509stctx_set_error): Do not
-	  use FIX2INT() without checking the value type.  Use NUM2INT()
-	  instead; found by akr in [ruby-dev:34890].
-
-Thu May 29 20:07:45 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* configure.in, win32/Makefile.sub, mkconfig.rb, instruby.rb,
-	  ruby.c, lib/mkmf.rb, README.EXT, README.EXT.ja: Backport the
-	  vendor_ruby directory support.
-
-Thu May 29 17:52:31 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/zlib/extconf.rb: search zlib1, and regard mswin32 later than VC6
-	  as WIN32.  [ruby-core:16984]
-
-Wed May 28 17:54:29 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* string.c (rb_str_start_with): Remove an unused variable.
-	  (rb_str_upto_m): Fix a prototype.
-
-Wed May 28 17:48:28 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* range.c (range_step): Fix brokenness when a non-integer numeric
-	  value is specified as step. [rubyspec]
-	  (range_step): Make use of String#step internally if a string (or
-	  string-alike) range is given.
-
-	* string.c (rb_str_upto_m, Init_String): Add an optional second
-	  argument to specify if the last value should be included.
-
-Wed May 28 16:53:39 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* array.c (rb_ary_slice_bang): Call rb_ary_modify_check() at the
-	  beginning. [rubyspec]
-
-Wed May 28 16:12:44 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/webrick/httpservlet/cgihandler.rb (WEBrick::HTTPServlet::CGIHandler#do_GET):
-	  Set the HTTP status code to 302 if a Location header field is
-	  present and the status code is not valid as a client
-	  redirection.  cf. RFC 3875 6.2.3, 6.2.4.
-
-Wed May 28 15:18:16 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/singleton.rb (SingletonClassMethods): _load should be public.
-
-Wed May 28 12:52:41 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* marshal.c (w_object, marshal_dump, r_object0, marshal_load): search
-	  private methods too.  [ruby-dev:34671]
-
-	* object.c (convert_type): ditto.
-
-Tue May 27 23:26:49 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* error.c (rb_bug): description from rb_bug() should include
-	  patchlevel.  [ruby-dev:34826]
-
-Tue May 27 20:19:22 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* array.c (rb_ary_slice_bang): Return an empty array instead of
-	  nil when pos is valid and len is adjusted from a valid value to
-	  zero; caught by RubySpec.
-
-Tue May 27 19:45:20 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* numeric.c (flo_divmod): Revert the behavior change; do not
-	  suppress an exception when div is NaN or Inf. [ruby-dev:34857]
-
-Tue May 27 19:24:40 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* enum.c (enum_to_a): Pass arguments through to #each().
-	  (enum_sort): Follow the enum_to_a signature change.
-	  (enum_reverse_each): Add #reverse_each().
-
-Tue May 27 18:54:02 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/stringio/stringio.c (strio_each_char, Init_stringio): Add
-	  StringIO#{each_char,chars}.
-
-Tue May 27 17:59:34 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/stringio/stringio.c (strio_each): Return an enumerator if no
-	  block is given.
-	  (strio_each_byte): Return an enumerator if no block is given,
-	  and return self if one is given as the rdoc says.
-
-	* io.c (rb_io_each_byte): Fix rdoc.  IO#each_byte returns self,
-	  not nil.
-
-Tue May 27 16:02:58 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* eval.c (rb_mod_module_exec, Init_eval): Add
-	  Module#{module_exec,class_exec}.
-
-Tue May 27 15:36:37 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* io.c (rb_io_each_char, argf_each_char, Init_IO):
-	  Add {IO#,ARGF.}{each_char,chars}.
-
-Tue May 27 13:46:52 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/stringio/stringio.c (Init_stringio): Define
-	  StringIO#{getbyte,readbyte}.
-
-Tue May 27 13:38:51 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* io.c (Init_IO): Define {IO#,ARGF.}{getbyte,readbyte}.
-
-Tue May 27 13:26:15 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/stringio/stringio.c (Init_stringio): Define #bytes and
-	  #lines.
-
-Tue May 27 13:20:35 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* io.c: (rb_io_lines, rb_io_bytes, Init_IO): Define
-	  IO#{lines,bytes} and ARGF.{lines,bytes}.
-
-Tue May 27 12:13:17 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* file.c (BUFCHECK): wrong condition. [ruby-core:16921]
-
-	* file.c (file_expand_buf): shouldn't use buflen for length of string.
-
-Mon May 26 18:24:48 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (BUFCHECK): no resize if enough room.
-
-	* file.c (file_expand_path): use BUFCHECK.
-
-Mon May 26 16:46:19 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* file.c (ntfs_tail): filename which starts with '.' is valid.
-
-	* file.c (file_expand_path): cygwin symlink support.
-
-Mon May 26 12:16:43 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* .: Release as Ruby 1.8.7-preview4.
-
-Mon May 26 12:12:26 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* marshal.c (dump_ensure, load_ensure): should return values.
-
-	* eval.c (yield_under, yield_under_i, yield_args_under_i)
-	  (specific_eval, rb_obj_instance_exec, Init_eval): Implement
-	  Object#instance_exec(), a 1.9 feature.
-
-Mon May 26 11:53:21 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* eval.c (rb_yield_0, proc_invoke, proc_arity): allow passing a
-	  block to a Proc.  [ruby-dev:23533]; by nobu; backported from
-	  1.9.  This implementation in current shape is known to be
-	  buggy/broken, especially with nested block invocation.  Take
-	  this as an experimental feature.
-
-	* parse.y (block_par, block_var): ditto.
-
-Mon May 26 08:00:52 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* marshal.c (r_object0, Init_marshal): Fix the garbled s_call
-	  definition; fixes [ruby-dev:34843].
-
-Mon May 26 03:16:20 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* hash.c (rb_hash_default): Fix rdoc.
-	  (rb_hash_each, env_each_value, env_each_pair): Return an
-	  enumerator if no block is given.
-	  (rb_hash_update): Update rdoc.
-	  (envix): Conditionalize the definition itself.
-	  (rb_f_getenv, env_fetch, env_keys, env_values, env_values_at)
-	  (env_select, env_inspect, env_to_a, env_empty_p, env_has_key)
-	  (env_has_value, env_index, env_indexes, env_to_hash, env_shift)
-	  (env_update): Require secure level 4.
-	  (env_each_value, env_each_i): Delay variable initialization.
-	  (env_each_key, env_each_value, env_reject_bang)
-	  (env_clear, env_replace): Omit duplicated secure level check.
-	  (env_has_value): Do to_str conversion.
-
-Sun May 25 19:48:12 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* hash.c (env_delete_if): Return an enumerator if no block is
-	  given.
-	  (env_each_key): Delay a variable initialization after
-	  RETURN_ENUMERATOR().
-
-Sun May 25 05:07:19 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* array.c (rb_ary_slice_bang): Be consistent with Array#slice()
-	  and String#slice!().  Just return nil when a negative length or
-	  out of boundary index is given instead of raising an exception
-	  via internal functions.
-	  (rb_ary_slice_bang): should not use rb_ary_subseq() which shares
-	  internal pointer.  splice modifies the receiver right after
-	  subseq.  [ruby-dev:34005]
-	  (rb_ary_slice_bang): should adjust length before making
-	  sub-array.
-
-	* enumerator.c (Init_Enumerator): Override
-	  Enumerable::Enumerator#each_with_index with #with_index.
-
-Sun May 25 03:13:09 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* eval.c (Init_Thread): Initialize recursive_key.
-
-Sun May 25 02:45:49 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* error.c (syserr_eqq): Use en.
-
-Sat May 24 22:32:49 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* object.c (rb_cstr_to_dbl): should clear errno before calling
-	  strtod(3).  [ruby-dev:34834]
-
-Sat May 24 22:27:44 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* marshal.c (marshal_load): should initialize arg.data used for
-	  reentrant check.  [ruby-dev:34837]
-
-Sat May 24 00:34:59 2008  Tanaka Akira  <akr@fsij.org>
-
-	* lib/rational.rb (Rational#to_i): fix rdoc.  Rational(-7,4).to_i
-	  should be -1.
-
-Fri May 23 20:22:44 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* marshal.c (reentrant_check): check reentrance via callcc.
-	  [ruby-dev:34802]
-
-Fri May 23 16:46:28 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* enumerator.c (proc_call): Remove an unused static function.
-
-Fri May 23 13:46:09 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (cflags): commit miss.
-
-Fri May 23 09:52:21 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (MINIRUBY), common.mk (RUBYOPT): add purelib.rb.
-	  [ruby-core:16642]
-
-	* ext/extmk.rb: load purelib.rb only when not cross compiling.
-
-Fri May 23 08:47:02 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* error.c (syserr_eqq): === should be able to handle delegated
-	  objects as well.
-
-Fri May 23 04:22:19 2008  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/tcltklib.c, ext/tk/tkutil/tkutil.c: fix memory leak.
-
-	* ext/tk/lib/tk.rb: avoid trouble when finalize TclTkIp.
-
-	* ext/tk/lib/tk.rb, ext/tk/lib/tk/*: help to fix troubles when
-	  use Ttk widgets on old Tk scripts.
-
-	* ext/tk/sample/*: update and add demo scripts. some of them are
-	  introduction about new features of Tcl/Tk8.5.
-
-Fri May 23 03:48:10 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* class.c (clone_method): Just use ruby_cref as cref.
-
-Fri May 23 01:03:23 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* class.c (rb_singleton_class_clone): Pass Qnil, not 0.
-
-Fri May 23 00:51:48 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* class.c (clone_method): Totally revamp the previous fix which
-	  was incorrect.
-	  (rb_mod_init_copy): Ditto.
-	  (singleton_class_clone_int): Ditto.
-
-Fri May 23 00:48:10 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* eval.c (rb_copy_node_scope), node.h: Rename from copy_node_scope
-	  and export.
-
-Thu May 22 21:24:15 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* parse.y (top_local_setup): fixed memory leak bug based on a
-	  patch from Roger Pack <rogerpack2005 at gmail.com> in
-	  [ruby-core:16610].
-
-Thu May 22 14:20:54 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* array.c (flatten): check if reentered.  [ruby-dev:34798]
-
-Thu May 22 08:28:49 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* array.c (flatten): free memo hash table before raising exception.
-	  [ruby-dev:34789]
-
-Thu May 22 06:30:10 2008  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* array.c (flatten): fix memory leak.
-
-Thu May 22 05:45:30 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* proc.c (proc_dup): should copy safe_level from src proc
-	  properly.  a patch from Keita Yamaguchi
-	  <keita.yamaguchi at gmail.com>
-
-Wed May 21 23:31:44 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_get_method_body, rb_alias, rb_eval): should not cache
-	  uninitialized value, since search_method doesn't set origin if the
-	  method wasn't found.
-
-	* eval.c (search_method, remove_method, error_print, rb_alias)
-	  (rb_eval, rb_rescue2, search_required, Init_eval, rb_thread_create),
-	  gc.c (rb_source_filename, Init_stack), io.c (rb_io_getline),
-	  parse.y (rb_id2name, rb_parser_free): suppress warnings.
-
-Wed May 21 12:34:51 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* hash.c (rb_hash_delete): rdoc fix based on a patch from Gaston Ramos
-	  <ramos.gaston AT gmail.com>.  [ruby-core:16825]
-
-Tue May 20 13:15:46 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* file.c (lchmod_internal): Remove a compiler warning.
-
-Mon May 19 18:22:35 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/openssl/ossl_pkcs5.c (ossl_pkcs5_pbkdf2_hmac): Fix the type
-	  of md; pointed out by Takahiro Kambe <taca at back-street.net>
-	  in [ruby-dev:34748].
-
-Mon May 19 14:20:13 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* sprintf.c (rb_f_sprintf): fixed SEGV on win32 with "% 0e" % 1.0/0.0.
-
-Mon May 19 13:29:58 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* process.c (rb_f_system): set last_status when status == -1 because
-	  there is no path to set it on win32. this patch is derived from
-	  [ruby-core:16787], submitted by Luis Lavena <luislavena at gmail.com>
-
-Mon May 19 13:01:05 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk ({MSPEC,RUBYSPEC}_GIT_URL): moved from Makefine.in.
-
-	* {win32,bcc32}/Makefile.sub (update-rubyspec): added.
-
-Mon May 19 11:53:45 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/openssl/openssl_missing.c (HMAC_CTX_copy): adopted
-	  prototype change in openssl bundled with newer OpenBSD.
-	  a patch from Takahiro Kambe <taca at back-street.net> in
-	  [ruby-dev:34691].
-
-Mon May 19 06:36:37 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* .: Release as Ruby 1.8.7-preview3.
-
-Sun May 18 22:26:51 2008  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/httpservlet/filehandler.rb: should normalize path
-	  name in path_info to prevent script disclosure vulnerability on
-	  DOSISH filesystems. (fix: CVE-2008-1891)
-	  Note: NTFS/FAT filesystem should not be published by the platforms
-	  other than Windows. Pathname interpretation (including short
-	  filename) is less than perfect.
-
-	* lib/webrick/httpservlet/abstract.rb
-	  (WEBrick::HTTPServlet::AbstracServlet#redirect_to_directory_uri):
-	  should escape the value of Location: header.
-
-	* lib/webrick/httpservlet/cgi_runner.rb: accept interpreter
-	  command line arguments.
-
-Sat May 17 23:53:57 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (file_expand_path): fix for short file name on Cygwin.
-
-Sat May 17 11:29:11 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_file_s_extname): first dot is not an extension name.
-
-Sat May 17 10:18:44 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* re.c (rb_reg_search): need to free allocated buffer in re_register.
-
-Fri May 16 17:01:44 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/Makefile.sub (test-rubyspec): added.
-
-Fri May 16 16:22:40 2008  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/tcltklib.c: sometimes freeze when receive Interrupt signal.
-
-Fri May 16 14:54:56 2008  Tanaka Akira  <akr@fsij.org>
-
-	* Makefile.in (update-rubyspec): move rubyspec to srcdir. 
-	  (test-rubyspec): ditto.
-
-Fri May 16 14:25:22 2008  Tanaka Akira  <akr@fsij.org>
-
-	* Makefile.in (test-rubyspec): use RUNRUBY.  suggested by nobu.
-
-Fri May 16 13:01:43 2008  Tanaka Akira  <akr@fsij.org>
-
-	* Makefile.in (update-rubyspec): new target to download rubyspec.
-	  (test-rubyspec): new target to run rubyspec.  this doesn't work
-	  before install.
-
-Fri May 16 08:15:52 2008  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: fix memory (object) leak bug.
-
-	* ext/tk/sample/demos-jp/aniwave.rb, ext/tk/sample/demos-en/aniwave.rb:
-	  bug fix.
-
-Thu May 15 17:00:22 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* string.c (Init_String): Define #bytesize as an alias for #size
-	  for compatibility with 1.9.
-
-Thu May 15 15:33:59 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (file_expand_path): support for alternative data stream
-	  and ignored trailing garbages of NTFS.
-
-	* file.c (rb_file_s_basename): ditto.
-
-	* file.c (rb_file_s_extname): ditto.
-
-Wed May 14 19:24:59 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* array.c (rb_ary_count): Override Enumerable#count for better
-	  performance.
-	  (rb_ary_nitems): Undo the backport.  Use #count {} instead.
-
-	* enumerator.c (enumerator_iter_i): Remove an unused function.
-	  (enumerator_with_index, enumerator_each): Remove unused
-	  variables.
-
-Wed May 14 17:15:11 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/tk/tkutil/extronf.rb: check stdndup() because it's not standard
-	  function of C.
-
-	* ext/tk/tkutil/tkutil.c (cbsubst_table_setup): use malloc() and
-	  strncpy() instead of strndup() if not available.
-
-Wed May 14 09:52:02 2008  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/tkutil/tkutil.c: improve handling callback-subst-keys. 
-	  Now, support longnam-keys (e.g. '%CTT' on tkdnd-2.0; however, still
-	  not support tkdnd-2.0 on tkextlib), and symbols of parameters (e.g. 
-	  :widget=>'%W', :keycode=>'%k', '%x'=>:x, '%X'=>:root_x, and so on; 
-	  those are attributes of event object). It means that Ruby/Tk accepts
-	  not only "widget.bind(ev, '%W', '%k', ...){|w, k, ...| ... }", but 
-	  also "widget.bind(ev, :widget, :keycode, ...){|w, k, ...| ... }". 
-	  It is potentially incompatible, when user passes symbols to the
-	  arguments of the callback block (the block receives the symbols as
-	  strings). I think that is very rare case (probably, used by Ruby/Tk
-	  experts only). When causes such trouble, please give strings instead
-	  of such symbol parameters (e.g. call Symbol#to_s method).
-
-	* ext/tk/lib/tk/event.rb, ext/tk/lib/tk/validation.rb, 
-	  ext/tk/lib/tkextlib/blt/treeview.rb, 
-	  ext/tk/lib/tkextlib/winico/winico.rb: ditto.
-
-	* ext/tk/tkutil/tkutil.c: strings are available on subst_tables on 
-	  TkUtil::CallbackSubst class (it is useful on Ruby 1.9). 
-
-	* ext/tk/lib/tk/spinbox.rb, ext/tk/lib/tkextlib/iwidgets/hierarchy.rb, 
-	  ext/tk/lib/tkextlib/iwidgets/spinner.rb, 
-	  ext/tk/lib/tkextlib/iwidgets/entryfield.rb, 
-	  ext/tk/lib/tkextlib/iwidgets/calendar.rb, 
-	  ext/tk/lib/tkextlib/blt/dragdrop.rb, 
-	  ext/tk/lib/tkextlib/tkDND/tkdnd.rb, 
-	  ext/tk/lib/tkextlib/treectrl/tktreectrl.rb, 
-	  ext/tk/lib/tkextlib/tktable/tktable.rb: disable code piece became 
-	  unnecessary by reason of the changes of ext/tk/tkutil/tkutil.c.
-
-Tue May 13 15:10:50 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* enumerator.c: Update rdoc.
-	  (enumerator_initialize): Discourage the use.
-	  (enum_each_slice, enum_each_cons, enumerator_each)
-	  (enumerator_with_index): Add a note about a call without a block.
-
-	* NEWS: Intentionally omit enum_slice and enum_cons, which are
-	  removed in 1.9.
-
-Tue May 13 07:56:36 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (rb_str_cat): fixed buffer overrun reported by
-	  Christopher Thompson <cthompson at nexopia.com> in [ruby-core:16746]
-
-Mon May 12 13:57:19 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (is_defined): add NODE_OP_ASGN_{OR,AND}.  "defined?(a||=1)"
-	  should not operate assignment.  [ruby-dev:34645]
-
-Mon May 12 12:59:23 2008  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/wm.rb: Wm#overrideredirect overwrites arguemnt to
-	  an invalid value.
-
-	* ext/tk/sample/ttk_wrapper.rb: support "if __FILE__ == $0" idiom.
-
-Mon May 12 12:36:55 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (rb_w32_select): backport from trunk.
-	  [ruby-talk:300743]
-
-Mon May 12 12:33:21 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk (RUBYLIB, RUBYOPT): clear.
-
-Mon May 12 10:41:10 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/delegate.rb (SimpleDelegator::dup): removed needless argument.
-	  [ruby-list:44910]
-
-	* lib/delegate.rb (clone, dup): keep relationship with the target
-	  object.
-
-Sun May 11 23:19:39 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* enum.c (all_iter_i, any_iter_i): reduced duplicated code.
-
-Sun May 11 17:57:36 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (MINIRUBY): should not include extension library path.
-
-Sun May 11 10:36:10 2008  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* eval.c (method_name, method_owner): New methods; backported
-	  from 1.9. (UnboundMethod#name, UnboundMethod#owner)
-
-Sun May 11 02:48:13 2008    <nagai@orca16.orcabay.ddo.jp>
-
-	* ext/tk/lib/tk/pack.rb, ext/tk/lib/tk/grid.rb: fail to do pack/grid 
-	  without options.
-
-	* ext/tk/lib/tk.rb: add TkWindow#grid_anchor, grid_column, grid_row.
-
-Sat May 10 18:19:16 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (rb_str_each_line): RDoc updated.  [ruby-dev:34586]
-
-Sat May 10 13:17:56 2008  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/pack.rb, ext/tk/lib/tk/grid.rb: increase supported
-	  parameter patterns of configure method.
-
-Sat May 10 09:16:13 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* util.c (ruby_strtod): backported from 1.9.  a patch from Satoshi
-	  Nakagawa <psychs at limechat.net> in [ruby-dev:34625]. 
-	  fixed: [ruby-dev:34623]
-
-Fri May  9 23:33:25 2008  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/wm.rb: methods of Tk::Wm_for_General module cannot
-	  pass the given block to methods of Tk::Wm module.
-
-	* ext/tk/lib/tk/grid.rb: lack of module-method definitions.
-
-	* ext/tk/lib/tkextlib/tile.rb: lack of autoload definitions.
-
-	* ext/tk/lib/tkextlib/tile/tnotebook.rb: cannot use kanji (not UTF-8) 
-	  characters for headings.
-
-	* ext/tk/tcltklib.c: maybe a little more stable about @encoding value 
-	  of TclTkIp object.
-
-Wed May  7 08:46:44 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* struct.c (rb_struct_s_def): to_str should be called only once.
-	  [ruby-core:16647]
-
-Wed May  7 00:54:25 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/zlib/zlib.c (gzreader_gets): may cause infinite loop.
-	  a patch from Kouya <kouyataifu4 at gmail.com> in
-	  [ruby-reference-manual:762].
-
-Sun May  4 09:35:51 2008  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* sample/erb/erb4html.rb (ERB4Html) : add example of ERB#set_eoutvar.
-	  ERB4Html is an auto-quote ERB.
-
-Sat May  3 22:52:48 2008  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tkextlib/tile.rb, ext/tk/lib/tkextlib/tile/style.rb, 
-	  ext/tk/sample/ttk_wrapper.rb: improve treating and control themes. 
-	  add Tk::Tile.themes and Tk::Tile.set_theme(theme).
-
-Fri May  2 14:52:33 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* misc/ruby-mode.el: move fontifying code from hook.  a patch from
-	  Phil Hagelberg <phil at hagelb.org> in [ruby-core:16636].
-
-Fri May  2 13:47:51 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* re.c (match_select): restore previous behavior of MatchData#select.
-	  RDoc updated as well, mentioning the plan to remove this method
-	  in the future.  [ruby-dev:34556]
-
-Fri May  2 13:04:04 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/dbm/dbm.c (Init_dbm): defines DBM::VERSION even when
-	  DB_VERSION_STRING is not available.  [ruby-dev:34569]
-
-Thu May  1 23:57:06 2008  James Edward Gray II  <jeg2@ruby-lang.org>
-
-	Merged 16257 from trunk.
-
-	* lib/net/telnet.rb:  This patch from Brian Candler adds a FailEOF mode which
-	  can be activated to have net/telnet raise EOFError exceptions when the 
-	  remote connection is closed.  The default behavior remains unchanged though.
-
-Thu May  1 23:43:21 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* range.c (range_step): check if step can be converted to an integer.
-	  [ruby-dev:34558]
-
-	* range.c (range_step): allow float step bigger than zero but less
-	  than one.  [ruby-dev:34557]
-
-Wed Apr 30 20:22:40 2008  James Edward Gray II  <jeg2@ruby-lang.org>
-
-	Merged 16241 from trunk.
-
-	* lib/net/telnet.rb:  Fixing a bug where line endings would not be properly
-	  escaped when the two character ending was broken up into separate TCP
-	  packets.  Issue reported and patched by Brian Candler.
-
-Wed Apr 30 17:47:21 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* re.c (rb_reg_search): use local variable.  a patch from wanabe
-	  <s.wanabe AT gmail.com> in [ruby-dev:34537].  [ruby-dev:34492]
-
-Sat Apr 26 19:40:34 2008  Guy Decoux  <decoux@moulon.inra.fr>
-
-	* class.c (struct clone_method_data): Add cref.
-	  (clone_method): Properly handle NODE_BMETHOD and NODE_DMETHOD.
-	  (rb_singleton_class_clone, singleton_class_clone_int): Set a
-	  proper value to klass and propagate cref. [ruby-core:16238]
-
-	* eval.c (rb_block_dup, rb_method_dup), intern.h: Add duplicator
-	  methods for use from class.c#clone_method().
-
-Fri Apr 25 15:46:37 2008  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb, ext/tk/lib/tk/scrollbar.rb, ext/tk/lib/tk/scale.rb:
-	  improve unknonw-option check when create a widget. 
-
-	* ext/tk/lib/tkextlib/blt/unix_dnd.rb, ext/tk/lib/tkextlib/blt/ted.rb,
-	  ext/tk/lib/tkextlib/treectrl/tktreectrl.rb: bug fix on 'cget'.
-
-	* ext/tk/lib/tk/menuspec.rb: option check will fail when 
-	  TkConfigMethod.__IGNORE_UNKNOWN_CONFIGURE_OPTION__ is true.
-
-	* ext/tk/lib/tk/palette.rb: bug fix.
-
-Fri Apr 25 12:37:54 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* array.c (flatten): returns an instance of same class.
-	  [ruby-core:16554]
-
-Thu Apr 24 23:47:50 2008  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* lib/net/pop.rb: backported from 1.9. bug#19003
-
-	* ext/openssl/lib/openssl/ssl.rb: set_params; backported from 1.9.
-	  bug#19552, [ruby-dev:34402]
-
-	* ext/openssl/ossl_ssl.c: ditto.
-
-	* test/openssl/test_ssl.rb: ditto.
-
-Thu Apr 24 17:06:34 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (THREAD_SAVE_CONTEXT): remove unnecessary
-	  FLUSH_REGISTER_WINDOWS before calling setjmp().  [ruby-core:16285]
-
-Thu Apr 24 14:15:11 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dln.c (dln_find_1): prior files with extensions to files sans
-	  extensions.  [ruby-core:16517]
-
-Wed Apr 23 15:39:31 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* eval.c (bind_eval): Add Binding#eval, a shorthand method for
-	  eval(str, binding, ..); backported from 1.9.
-
-Wed Apr 23 15:28:52 2008  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* test/gdbm/test_gdbm.rb (TestGDBM#test_s_open_no_create): failed
-	  notice moved from comment to assertion message. [ruby-dev:29127]
-
-Wed Apr 23 14:00:05 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/mkmf.rb (create_makefile): Add a missing dependency on the
-	  target directory for each .rb file.  This will hopefully fix
-	  parallel make (-jN).  Tested on FreeBSD.
-
-Wed Apr 23 11:49:54 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/set.rb (Set#each, SortedSet#each, TC_Set#test_each): Return
-	  an enumerator if no block is given.
-
-Wed Apr 23 00:42:49 2008  Tanaka Akira  <akr@fsij.org>
-
-	* eval.c (error_print): show full stack grace except SystemStackError.
-	  backport from 1.9.  [ruby-dev:31014]
-
-Wed Apr 23 00:18:45 2008  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* test/ruby/test_symbol.rb (TestSymbol#test_to_proc): Improve
-	  tests of Symbol#to_proc.
-
-Tue Apr 22 22:43:05 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* eval.c (rb_proc_new, YIELD_FUNC_LAMBDA): Add a new nd_state
-	  YIELD_FUNC_LAMBDA which avoids automatic `avalue' conversion for
-	  arguments.  This fixes a bug where [1,[2,3]].map(&:object_id)
-	  fails.
-
-	* intern.h, object.c: Hide rb_proc_new() from intern.h.  It should
-	  not be considered an official API function yet.
-
-Tue Apr 22 21:24:32 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* eval.c (rb_proc_new): Turn the BLOCK_LAMBDA flag on.
-
-	* object.c (sym_to_proc), test/ruby/test_symbol.rb: Add back
-	  Symbol#to_proc, now that it passes the tests.
-
-Tue Apr 22 19:35:03 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* enumerator.c (enumerator_initialize): Remove an undocumented
-	  feature (passing a block to the constructor) that's broken.
-	  This is not what I intended.
-
-Tue Apr 22 17:49:46 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* sprintf.c (rb_f_sprintf): should protect temporary string from
-	  GC.   [ruby-dev:34480]
-
-Tue Apr 22 17:12:05 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* regex.c (re_search): string might be NULL.  [ruby-core:16478]
-
-Tue Apr 22 16:44:00 2008  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* object.c (rb_obj_tap): Correct documentation; pointed out by
-	  okkez in [ruby-dev:34472].
-
-Tue Apr 22 10:05:51 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* file.c (eaccess): workaround for recent msvcrt's behavior.
-	  [ruby-core:16460]
-
-Mon Apr 21 16:06:47 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* enumerator.c (enumerator_init): preserve the method name in ID.
-
-	* enumerator.c (enumerator_each): need not to call rb_to_id().
-
-	* enumerator.c (enumerator_with_index): ditto.
-
-Mon Apr 21 17:19:52 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* eval.c (rb_f_method_name): New gloval function: __method__;
-	  backported from matzruby / 1.9.
-
-	* eval.c (rb_frame_this_func), intern.h: New internal function.
-
-	* intern.h (RETURN_ENUMERATOR): Use rb_frame_this_func() instead
-	  of rb_frame_last_func(), to accommodate the behavior to that of
-	  1.9.
-
-Mon Apr 21 15:54:48 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/tempfile.rb (Tempfile::_close): check @data before modifying
-	  it; backported from 1.9.  [ruby-dev:34094]
-
-	* lib/tempfile.rb (Tempfile::close): clear @data and @tmpname.
-
-Mon Apr 21 10:17:17 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* time.c: should include <errno.h> to refer errno.
-
-Mon Apr 21 10:02:43 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* hash.c (recursive_hash): prototype.
-
-Mon Apr 21 10:00:51 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* time.c (rb_strftime): check errno to detect strftime(3)'s error.
-	  this is workaround for recent version of MSVCRT.
-	  [ruby-dev:34456]
-
-Sun Apr 20 21:10:04 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* .: Release as Ruby 1.8.7-preview2.
-
-Sun Apr 20 21:02:06 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* enumerator.c: Resolve the method every time an enumeration
-	  method is run, not once when the enumerator is initialized as it
-	  was before, so that method_missing() and method (re)definition
-	  afterwards are both in effect; pointed out in: [ruby-core:16441]
-
-Sun Apr 20 17:59:25 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* object.c, NEWS, test/ruby/test_symbol.rb: Revert Symbol#to_proc
-	  since it does not pass the tests.
-
-Sun Apr 20 14:29:35 2008  Technorama Ltd.  <oss-ruby@technorama.net>
-
-	* ext/openssl/ossl_ssl.c: initialize session class.
-
-Sat Apr 19 20:54:42 2008  akira yamada  <akira@arika.org>
-
-	* lib/uri/ftp.rb, lib/uri/generic.rb, test/uri/test_common.rb,
-	  test/uri/test_ftp.rb, test/uri/test_generic.rb: backported from 1.9.
-	  [ruby-dev:31318]
-
-Sat Apr 19 20:35:02 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/yaml/baseemitter.rb, lib/yaml/encoding.rb: performance
-	  tuning around String#gsub.
-
-	* lib/yaml/tag.rb: Replace nodoc with stopdoc so Module methods get
-	  documented.
-
-	* lib/yaml/store.rb (YAML::load): modified to support empty
-	  database.
-
-	* lib/yaml/store.rb (YAML::Store::marshal_dump_supports_canonical_option?):
-	  add a method to support faster PStore.
-
-Sat Apr 19 20:16:52 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/yaml/types.rb: Likewise, pass self to YAML::quick_emit;
-	  merged from 1.9.
-
-	* lib/yaml.rb (quick_emit): use combination of object_id and hash to
-	  identify repeated object references, since GC will reuse memory of
-	  objects during output of YAML. [ruby-Bugs-8548] [ruby-Bugs-3698];
-	  merged from 1.9.
-
-Sat Apr 19 20:05:39 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* array.c (rb_ary_equal, rb_ary_eql, rb_ary_hash, rb_ary_cmp):
-	  Make Array#eql?, #hash, #== and #<=> use rb_exec_recursive() and
-	  handle recursive data properly.
-
-	* hash.c (hash_equal, rb_hash_hash): Make Hash#eql?, #hash and #==
-	  use rb_exec_recursive() and handle recursive data properly.
-
-Sat Apr 19 19:26:09 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* intern.h, eval.c (rb_exec_recursive): New internal function to
-	  help perform recursive operation; backported from 1.9.
-
-Sat Apr 19 18:42:04 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* intern.h, hash.c (rb_hash_lookup): New internal function to
-	  check if a key exists in a hash, ignoring #default; backported
-	  from 1.9.
-
-Fri Apr 18 18:56:57 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/syck/rubyext.c (syck_genericresolver_node_import): should
-	  not set instance variable "@kind" before initializing it.
-	  [ruby-dev:32677]
-
-	* ext/syck/rubyext.c (syck_resolver_initialize,
-	  syck_resolver_detect_implicit, syck_emitter_emit): remove unused
-	  variables.
-
-Fri Apr 18 18:54:57 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/syck/rubyext.c: Node#value defined twice.
-
-	* lib/yaml/: several method redefinitions causing warnings.
-
-Fri Apr 18 16:36:16 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/rexml/node.rb (REXML::Node::indent): should initialize rv
-	  variable.  a patch from Tadayoshi Funaba <tadf AT dotrb.org> in 
-	  [ruby-dev:32783].
-
-Fri Apr 18 16:01:37 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/rexml: Merge fixes since 1.8.6 made solely on the ruby_1_8_6
-	  branch.
-
-Wed Apr 16 06:11:49 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* test/ruby/test_settracefunc.rb (TestSetTraceFunc#test_event):
-	  Fix tests to reflect the following changes: r15833, r15759.
-
-Wed Apr 16 05:03:48 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* .: Release as Ruby 1.8.7-preview1.
-
-Wed Apr 16 02:09:14 2008  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/xmlrpc/client.rb: fix cookie handling. [ruby-dev:34403]
-
-	* test/xmlrpc/test_cookie.rb: add a test for the above fix.
-
-Tue Apr 15 23:48:28 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* version.h: Branch off ruby_1_8_7 from ruby_1_8 in preparation
-	  for the forthcoming 1.8.7 release.
-
-Tue Apr 15 23:40:39 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/syck/rubyext.c (rb_syck_mktime): Avoid buffer overflow.
-
-Tue Apr 15 20:32:03 2008  Tanaka Akira  <akr@fsij.org>
-
-	* re.c (match_inspect): backported from 1.9.
-
-Tue Apr 15 19:03:28 2008  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* eval.c (method_receiver, method_name, method_owner): New
-	  methods; backported from 1.9. bug#19007
-
-Tue Apr 15 18:39:14 2008  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* lib/uri.rb, lib/uri/ldaps.rb: added LDAPS
-	  scheme; backported from 1.9. bug#19015, [ruby-dev:31896]
-
-Tue Apr 15 17:45:43 2008  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* lib/net/smtp.rb: backported from 1.9. bug#19003
-
-Tue Apr 15 17:06:12 2008  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* test/ruby/test_symbol.rb (TestSymbol#test_to_proc): add tests.
-
-Tue Apr 15 16:58:55 2008  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/menuspec.rb: option check will fail when 
-	  TkConfigMethod.__IGNORE_UNKNOWN_CONFIGURE_OPTION__ is true.
-
-	* ext/tk/lib/tk/palette.rb: bug fix.
-
-Tue Apr 15 16:47:48 2008  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* signal.c, gc.c: New methods: GC.stress, GC.stress=;
-	  backported from 1.9. a patch from Tadashi Saito
-	  in [ruby-dev:34394] and bug#19000
-
-Tue Apr 15 12:35:44 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* rubyio.h (rb_io_t): renamed from OpenFile.
-
-	* ruby.h (struct RHash), file.c, gc.c, io.c, ext/dl/dl.c,
-	  ext/io/wait/wait.c, ext/pty/pty.c, ext/readline/readline.c,
-	  ext/socket/socket.c: ditto.
-
-	* win32/win32.h: removed workaround for OpenFile.
-
-Tue Apr 15 00:15:29 2008  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/text.rb: typo. call a wrong method.
-
-	* ext/tk/lib/tk/itemconfig.rb: ditto.
-
-	* ext/tk/sample/ttk_wrapper.rb: bug fix.
-
-	* ext/tk/sample/tktextio.rb: add binding for 'Ctrl-u' at console mode.
-
-	* ext/tk/lib/tk.rb, ext/tk/lib/tk/itemfont.rb, ext/tk/lib/font.rb: 
-	  support __IGNORE_UNKNOWN_CONFIGURE_OPTION__ about font options.
-
-	* ext/tk/lib/tkextlib/iwidgets/scrolledcanvas.rb, 
-	  ext/tk/lib/tkextlib/iwidgets/scrolledlistbox.rb, 
-	  ext/tk/lib/tkextlib/iwidgets/scrolledtext.rb: bug fix. 
-
-	* ext/tk/lib/tkextlib/tile/tpaned.rb: improve TPaned#add.
-
-	* ext/tk/lib/tk/timer.rb: add TkTimer#at_end(proc) to register the 
-	  procedure which called at end of the timer.
-
-Mon Apr 14 19:54:21 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* array.c (rb_ary_flatten, rb_ary_flatten_bang): Take an optional
-	  argument that determines the level of recursion to flatten;
-	  backported from 1.9.
-
-	* array.c (rb_ary_shuffle_bang, rb_ary_shuffle, rb_ary_choice,
-	  rb_ary_cycle, rb_ary_permutation, rb_ary_combination,
-	  rb_ary_product, rb_ary_take, rb_ary_take_while, rb_ary_drop,
-	  rb_ary_drop_while): New methods: Array#shuffle, #shuffle!,
-	  #choice, #cycle, #permutation, #combination, #product, #take,
-	  #take_while, #drop, #drop_while; backported from 1.9.
-
-Mon Apr 14 19:52:35 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ruby.h: New macro: RB_GC_GUARD().
-
-Mon Apr 14 19:49:35 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* random.c (rb_genrand_int32, rb_genrand_real), intern.h: Export.
-
-	* string.c (rb_str_tmp_new), intern.h: New function.
-
-Mon Apr 14 19:18:55 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* enum.c (inject_i, inject_op_i): prototype.
-
-Mon Apr 14 19:10:47 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* enum.c New methods: Enumerable#take, #take_while, #drop and
-	  #drop_while; backported from 1.9.
-
-Mon Apr 14 18:50:15 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* enum.c: New methods: Enumerable#one?, #none?, #minmax, #min_by,
-	  #max_by, #minmax_by and #cycle; backported from 1.9.
-
-	* enum.c (enum_find_index): Add support for find_index(obj);
-	  [ruby-dev:34313]; backported from 1.9.
-
-	* enum.c (enum_inject): Add support for Enumerable#inject(:binop);
-	  backported from 1.9.
-
-	* enum.c: Alias Enumerable#reject to #inject; backported from 1.9.
-
-Mon Apr 14 18:14:19 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* enum.c (enum_find, enum_reject): Return an enumerator if no
-	  block is given; backported from 1.9.
-
-	* io.c (rb_io_each_line, rb_io_each_byte, rb_io_s_foreach,
-	  argf_each_line, argf_each_byte): Ditto.
-
-	* string.c (str_gsub): Ditto.
-
-Mon Apr 14 18:10:05 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* enum.c (find_index_i, find_index_iter_i): add prototype for VC.
-
-Mon Apr 14 17:55:30 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* array.c (rb_ary_collect_bang, rb_ary_select): Return an
-	  enumerator if no block is given; backported from 1.9.
-
-	* dir.c (dir_each, dir_foreach): Ditto.
-
-	* enum.c (enum_partition, enum_sort_by): Ditto.
-
-	* gc.c (os_each_obj): Ditto.
-
-	* hash.c (rb_hash_delete_if, rb_hash_reject_bang, rb_hash_select,
-	  rb_hash_each_value, rb_hash_each_key, rb_hash_each_pair,
-	  env_each_key, env_each_value, env_each, env_each_pair,
-	  env_reject_bang, env_delete_if, env_select): Ditto.
-
-	* numeric.c (num_step, int_upto, int_downto, int_dotimes): Ditto.
-
-Mon Apr 14 16:42:53 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ruby.h (rb_block_call_func): Fix prototype.
-
-	* enumerator.c (enumerator_iter_i, enumerator_each_i): Ditto.
-
-Mon Apr 14 15:49:05 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* enum.c (enum_count, enum_find_index): New methods:
-	  Enumerable#count and #find_index; backported from 1.9.
-
-Mon Apr 14 14:16:08 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* enumerator.c (enumerator_mark, enumerator_iter_i, enumerator_each_i,
-	  enumerator_allocate): add prototype.
-
-	* enumerator.c (enumerator_each_i): declare unused two arguments.
-
-Mon Apr 14 13:58:32 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* string.c (rb_str_each_char): New methods: String#chars and
-	  #each_char; backported from 1.9.
-
-Mon Apr 14 13:42:20 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* string.c (rb_str_each_line, rb_str_each_byte): Reflect
-	  enumerator integration.  #lines and #bytes are now aliases to
-	  #each_line and #each_byte, respectively.
-
-Mon Apr 14 13:19:36 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* range.c (range_each, range_step): Return an enumerator if no
-	  block is given; backported from 1.9.
-
-	* struct.c (rb_struct_each, rb_struct_each_pair): Ditto.
-
-Mon Apr 14 13:07:59 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* string.c (rb_str_partition, rb_str_rpartition,
-	  rb_str_start_with, rb_str_end_with): New methods:
-	  String#partition, #rpartition, #start_with? and #end_with?;
-	  backported from 1.9.  These methods are $KCODE aware unlike
-	  #index, #rindex and #include?.
-
-Sun Apr 13 15:55:52 2008  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* object.c (sym_to_proc): new method Symbol#to_proc; backported
-	  from 1.9. bug#19012
-
-Fri Apr 11 19:14:30 2008  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* object.c (rb_obj_tap): new method Object#tap; backported from
-	  1.9. bug#19008
-
-Fri Apr 11 18:58:09 2008  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* process.c: new method Process.exec; backported from 1.9. bug#19006
-
-Fri Apr 11 12:43:56 2008  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tkextlib/tile.rb, ext/tk/lib/tkextlib/tile/style.rb, 
-	  ext/tk/sample/tkextlib/tile/demo.rb: previous patch is not complete.
-
-Fri Apr 11 10:22:54 2008  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tkextlib/tile.rb:
-	  __define_LoadImages_proc_for_compatibility__! do nothing when the 
-	  Tcl command exists.
-
-	* ext/tk/lib/tkextlib/tile/style.rb:
-	  __define_wrapper_proc_for_compatibility__! do nothing when the Tcl
-	  command exists.
-
-	* ext/tk/sample/tkextlib/tile/demo.rb: don't create 'step' theme if 
-	  it already exists.
-
-Fri Apr 11 08:05:12 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* marshal.c (w_object): add volatile to avoid potential GC bug.  a
-	  patch from Tomoyuki Chikanaga <chikanag at nippon-control-system.co.jp>
-	  in [ruby-dev:34311].
-
-Thu Apr 10 20:29:13 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* misc/rdebug.el, misc/README: Remove rdebug.el as per request
-	  from the maintainer and mention the ruby-debug project at
-	  RubyForge in README; bug#19043.
-
-Thu Apr 10 20:08:37 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* enum.c (enum_first, enum_group_by): New methods:
-	  Enumerable#first and #group_by; backported from 1.9.
-
-Thu Apr 10 19:49:10 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* enumerator.c (rb_eStopIteration), eval.c (rb_f_loop), ruby.h:
-	  Add a new exception class StopIteration, which breaks Kernel#loop
-	  iteration when raised; backported from 1.9.
-
-	* enumerator.c (enumerator_next, enumerator_rewind): Implement
-	  #next and #rewind using the "generator" library.
-
-	* lib/generator.rb: Implement Enumerable::Enumerator#next and
-	  #rewind.
-
-Thu Apr 10 19:29:48 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* array.c (rb_ary_first, rb_ary_last): Return a shared array when
-	  possible.
-
-	* array.c (rb_ary_pop, rb_ary_pop_m, rb_ary_shift, rb_ary_shift_m):
-	  Array#pop and Array#shift can take an optional argument
-	  specifying the number of elements to remove and return;
-	  backported from 1.9.
-
-Thu Apr 10 14:00:44 2008  Tanaka Akira  <akr@fsij.org>
-
-	* lib/resolv.rb (Resolv::DNS#each_address): backport from 1.9 for
-	  CNAME.  [ruby-dev:34200]
-
-Thu Apr 10 01:42:25 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* enum.c (iterate_method): add prototype to avoid warning on VC++.
-
-Wed Apr  9 23:12:41 2008  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/tcltklib.c: SEGV when tcltk-stubs is enabled.
-
-	* ext/tk/tcltklib.c: avoid error on a shared object.
-
-	* ext/tk/extconf.rb: support --with-tcltkversion
-
-	* ext/tk/README.tcltklib: add document about --with-tcltkversion
-
-	* ext/tk/sample/demos-jp/widget, ext/tk/sample/demos-en/widget, 
-	  ext/tk/sample/demos-jp/style.rb, ext/tk/sample/demos-en/style.rb, 
-	  ext/tk/sample/demos-jp/bind.rb, ext/tk/sample/demos-en/bind.rb: 
-	  bug fix.
-
-Wed Apr  9 21:54:45 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* array.c (rb_ary_pop): Do not reallocate too often; backported
-	  from 1.9.
-
-Wed Apr  9 21:13:05 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* array.c (rb_ary_each, rb_ary_each_index, rb_ary_reverse_each,
-	  rb_ary_reject, rb_ary_reject_bang): Array#each, #each_index,
-	  #reverse_each, #reject, #reject! and #delete_if return an
-	  enumerator if no block is given; backported from 1.9.
-
-Wed Apr  9 20:47:16 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* array.c (rb_ary_index, rb_ary_index): Array#index and #rindex
-	  can take a block instead of an argument; backported from 1.9.
-
-Wed Apr  9 19:58:31 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* enumerator.c, inits.c (rb_call_inits), ruby.h, intern.h,
-	  ext/enumerator, common.mk (OBJS, enumerator.$(OBJEXT)): Make the
-	  enumerator module built-in.
-
-	* enumerator.c: New method: Enumerable::Enumerator#with_index.
-
-	* enum.c (enum_each_with_index): Enumerable#each_with_index now
-	  returns an enumerator instead of raising an exception if no
-	  block is given.  Enumerable#enum_with_index, formerly defined in
-	  the enumerator module, is kept as an alias to each_with_index
-	  for backward compatibility.
-
-Wed Apr  9 19:43:51 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* eval.c (rb_obj_method, rb_proc_call), intern.h: Export.
-
-Tue Apr  8 11:11:28 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (EXEC_TAG): remove unnecessary FLUSH_REGISTER_WINDOWS for
-	  better performance on SPARC.  [ruby-core:16159]
-
-Tue Apr  8 10:49:54 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* re.c (rb_reg_quote): should always copy the quoting string.
-	  [ruby-core:16235]
-
-Mon Apr  7 21:35:08 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* array.c (rb_ary_nitems): Backport Array#nitems with a block;
-	  suggested by Bertram Scharpf <lists@bertram-scharpf.de> in
-	  [ruby-talk:134083].
-
-Sun Apr  6 09:45:00 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dir.c (dir_tell): check if closed.  [ruby-core:16223]
-
-Sat Apr  5 10:05:00 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* object.c (rb_check_to_integer): backported for range_step.
-
-Fri Apr  4 05:57:11 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/net/pop.rb (Net::POP3::do_finish): clear @n_mails and
-	  @n_bytes as well.  [ruby-core:16144]
-
-Fri Apr  4 02:17:06 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* range.c (range_step): should not round step into integer if
-	  begin and end are numeric.  [ruby-core:15990]
-
-Tue Apr  1 14:43:38 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in: get rid of empty expansion.
-
-	* {bcc,win}32/Makefile (config.h): need to define RUBY_SETJMP, etc.
-
-Tue Apr  1 11:36:19 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in: _setjmp is available but _longjmp is not on mingw.
-
-Tue Apr  1 03:20:40 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (RUBY_SETJMP, RUBY_LONGJMP, RUBY_JMP_BUF): prefers
-	  _setjmp over setjmp and sigsetjmp.  [ruby-core:16023]
-	  __builtin_setjmp cannot handle a variable.
-
-	* configure.in (--with-setjmp-type): new option to override the
-	  default rule in the above.
-
-	* eval_intern.h (ruby_setjmp, ruby_longjmp), gc.c (rb_setjmp),
-	  vm_core.h (rb_jmpbuf_t): use RUBY_SETJMP, RUBY_LONGJMP and
-	  RUBY_JMP_BUF.
-
-Tue Apr  1 01:55:52 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/resolv.rb (Resolv::Config.default_config_hash): requires
-	  win32/resolv to use Win32::Resolv.  [ruby-dev:34138]
-
-Mon Mar 31 14:51:11 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* bignum.c (rb_big_div): Bignum#div should return integer for
-	  floating number operand.
-
-Sun Mar 30 07:00:32 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/tk/tcltklib.c: rb_hash_lookup has not been backported yet.
-
-Sat Mar 29 14:18:41 2008  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/*: full update Ruby/Tk to support Ruby(1.9|1.8) and Tc/Tk8.5.
-
-	* ext/tk/lib/tkextlib/tile.rb: [incompatible] remove TileWidgets' 
-	  instate/state/identify method to avoid the conflict with standard
-	  widget options. Those methods are renamed to ttk_instate/ttk_state/
-	  ttk_identify (tile_instate/tile_state/tile_identify are available 
-	  too). Although I don't recommend, if you realy need old methods, 
-	  please define "Tk::USE_OBSOLETE_TILE_STATE_METHOD = true" before 
-	  "require 'tkextlib/tile'".
-
-	* ext/tk/lib/tkextlib/tile.rb: "Tk::Tile::__Import_Tile_Widgets__!"
-	  is obsolete. It outputs warning. To control default widget set, 
-	  use "Tk.default_widget_set = :Ttk".
-
-	* ext/tk/lib/tk.rb: __IGNORE_UNKNOWN_CONFIGURE_OPTION__ method and 
-	  __set_IGNORE_UNKNOWN_CONFIGURE_OPTION__!(mode) method are defind 
-	  as module methods of TkConfigMethod. It may help users to wrap old 
-	  Ruby/Tk scripts (use standard widgets) to force to use Ttk widgets.
-	  Ttk widgets don't have some options of standard widgets which are 
-	  control the view of widgets. When set ignore-mode true, configure 
-	  method tries to ignoure such unknown options with no exception. 
-	  Of course, it may raise other troubles on the GUI design. 
-	  So, those are a little danger methods. 
-
-	* ext/tk/lib/tk/itemconfig.rb: __IGNORE_UNKNOWN_CONFIGURE_OPTION__ 
-	  method and __set_IGNORE_UNKNOWN_CONFIGURE_OPTION__!(mode) method 
-	  are defind as module methods of TkItemConfigMethod as the same 
-	  purpose as TkConfigMethod's ones.
-
-	* ext/tk/sample/ttk_wrapper.rb: A new example. This is a tool for 
-	  wrapping old Ruby/Tk scripts (which use standard widgets) to use 
-	  Ttk (Tile) widgets as default.
-
-	* ext/tk/sample/tkextlib/tile/demo.rb: use ttk_instate/ttk_state 
-	  method instead of instate/state method.
-
-	* ext/tk/lib/tk/root, ext/tk/lib/tk/namespace.rb,
-	  ext/tk/lib/tk/text.rb, ext/tk/lib/tkextlib/*: some 'instance_eval's  
-	  are replaced to "instance_exec(self)".
-
-	* ext/tk/lib/tk/event.rb: bug fix on KEY_TBL and PROC_TBL (?x is not 
-	  a character code on Ruby1.9).
-
-	* ext/tk/lib/tk/variable.rb: support new style of operation argument 
-	  on Tcl/Tk's 'trace' command for variables. 
-
-	* ext/tk/sample/demos-jp/widget, ext/tk/sample/demos-en/widget: bug fix
-
-	* ext/tk/sammple/demos-jp/textpeer.rb, 
-	  ext/tk/sammple/demos-en/textpeer.rb: new widget demo.
-
-	* ext/tk/tcltklib.c: decrase SEGV troubles (probably)
-
-	* ext/tk/lib/tk.rb: remove Thread.critical access if Ruby1.9
-
-	* ext/tk/lib/tk/multi-tk.rb: support Ruby1.9 (probably)
-
-	* ext/tk/lib/tkextlib/tile.rb: add method to define Tcl/Tk command 
-	  to make Tcl/Tk theme sources (based on different version of Tile 
-	  extension) available. 
-	  (Tk::Tile::__define_LoadImages_proc_for_comaptibility__)
-
-	* ext/tk/lib/tk.rb, ext/tk/lib/tk/wm.rb: support dockable frames
-	  (Tcl/Tk8.5 feature). 'wm' command can treat many kinds of widgets 
-	  as toplevel widgets.
-
-	* ext/tk/lib/tkextlib/tile/style.rb: ditto.
-	  (Tk::Tile::Style.__define_wrapper_proc_for_compatibility__)
-
-	* ext/tk/lib/tk/font.rb: add actual_hash and metrics_hash to get 
-	  properties as a hash. metrics_hash method returns a boolean value 
-	  for 'fixed' option. But metrics method returns numeric value 
-	  (0 or 1) for 'fixed' option, because of backward compatibility. 
-
-	* ext/tk/lib/tk/timer.rb: somtimes fail to set callback procedure.
-
-	* ext/tk/lib/tk.rb: add Tk.sleep and Tk.wakeup method. Tk.sleep 
-	  doesn't block the eventloop. It will be better to use the method 
-	  in event callbacks.
-
-	* ext/tk/sample/tksleep_sample.rb: sample script about Tk.sleep.
-
-Sat Mar 29 04:08:59 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* class.c (clone_method): should copy cref as well.
-	  [ruby-core:15833]
-
-Mon Mar 24 20:07:42 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* eval.c (rb_eval): Call trace hook for if expression after the
-	  condition has been evaluated, not before; submitted by Rocky
-	  Bernstein in #18722.
-
-Mon Mar 24 19:44:53 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* parse.y (yycompile): Always prepare a new array for each file's
-	  SCRIPT_LINES__ storage, instead of appending source lines every
-	  time a file is re-loaded; submitted by Rocky Bernstein in
-	  #18517.
-
-Mon Mar 24 10:25:54 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in: sitearch should use target_cpu.  [ruby-core:15986]
-
-Mon Mar 24 01:24:24 2008  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/erb.rb (result): use proc instead of Thread. [ruby-dev:33692]
-
-Fri Mar 21 21:26:52 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/resolv.rb (Resolv::Hosts): should not use win32/resolv on cygwin.
-	  [ruby-dev:29945], [ruby-dev:34095]
-
-	* lib/win32/registry.rb (Win32::Registry.expand_environ): try upcased
-	  name too for cygwin.  [ruby-dev:29945]
-
-	* lib/win32/resolv.rb (Win32::Resolv.get_hosts_path): use expand_path.
-
-Fri Mar 21 21:10:00 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/ipaddr.rb: Say that I am the current maintainer.
-
-	* lib/set.rb: Ditto.
-
-	* lib/shellwords.rb: Ditto.
-
-	* ext/syslog/syslog.txt: Ditto.
-
-Fri Mar 21 09:24:28 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* instruby.rb (open_for_install): write block result and rewrite only
-	  if changed from existing file.
-
-Wed Mar 19 21:01:08 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dir.c (dir_inspect, dir_path, dir_tell): check for frozen and closed
-	  is not needed.  [ruby-dev:32640]
-
-Wed Mar 19 20:25:40 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dir.c (Init_Dir): define inspect method.  [ruby-core:15960]
-
-Wed Mar 19 14:59:12 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* misc/ruby-style.el (ruby-style-{case,label}-indent): fix for labels
-	  inside blocks in switch and function top level.
-
-Wed Mar 19 14:36:40 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* bignum.c (rb_cstr_to_inum): treat successive underscores as
-	  nondigit.  [ruby-dev:34089]
-
-Wed Mar 19 00:01:23 2008  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/erb.rb (ERB::Compiler): Make some minor code optimization.
-
-Mon Mar 17 17:11:13 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* misc/ruby-mode.el (ruby-mode): should use `run-mode-hooks' instead
-	  of calling `run-hooks' directly to run the mode hook.  patch from
-	  Chiyuan Zhang <pluskid AT gmail.com> in [ruby-core:15915]
-
-Mon Mar 17 16:41:08 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in: unset GREP_OPTIONS.  [ruby-core:15918]
-
-Fri Mar 14 16:59:23 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (RUBY_LIB_PREFIX): fix for prefix.
-
-Fri Mar 14 16:35:11 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/cgi.rb (CGI::Cookie::initialize): performance patch from
-	  Makoto Kuwata <kwa@kuwata-lab.com> in [ruby-dev:34048].
-
-Fri Mar 14 15:49:05 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (RUBY_LIB_PREFIX): use libdir.
-
-Fri Mar 14 10:12:29 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (RUBY_CHECK_VARTYPE): should not indent preprocessor
-	  directives.
-
-Thu Mar 13 00:37:20 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_call0): yields the last executed node line number at
-	  return event.  [ruby-core:15855]
-
-Wed Mar 12 02:12:20 2008  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* lib/delegate.rb: check $@ to avoid NoMethodError.
-
-Tue Mar 11 19:48:09 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* numeric.c (fix_coerce): try conversion before type check.
-	  [ruby-core:15838]
-
-Tue Mar 11 17:03:23 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/delegate.rb (Delegator#initialize, DelegateClass): skip correct
-	  backtrace.  [ruby-dev:34019]
-
-Tue Mar 11 16:43:53 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.c (rb_w32_cmdvector): terminate shrunken command line.
-
-Tue Mar 11 12:39:03 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk (clean-local): removes MINOBJS.
-
-Sat Mar  8 18:50:57 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (isdirsep): backslash is valid path separator on cygwin too.
-
-Fri Mar  7 19:56:10 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb: rdoc added.  [ruby-Patches-9762]
-
-Thu Mar  6 15:10:21 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* {bcc32,win32}/Makefile.sub (RUNRUBY): use $(PROGRAM) instead of
-	  ruby$(EXEEXT).
-	  suggested by KIMURA Koichi <kimura.koichi at canon.co.jp>.
-	  [ruby-dev:34000]
-
-Thu Mar  6 12:15:06 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (opt_block_param): command can start just after block param
-	  definition.  [ruby-list:44479]
-
-Thu Mar  6 00:34:11 2008  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/erb.rb: update RDoc. Thanks Makoto Kuwata [ruby-dev:33702]
-
-Mon Mar  3 23:28:34 2008  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/httpservlet/filehandler.rb: should normalize path
-	  separators in path_info to prevent directory traversal attacks
-	  on DOSISH platforms.
-	  reported by Digital Security Research Group [DSECRG-08-026].
-
-	* lib/webrick/httpservlet/filehandler.rb: pathnames which have
-	  not to be published should be checked case-insensitively.
-
-Mon Mar  3 16:14:24 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* hash.c (rb_any_hash): shrinks all results in Fixnum range.
-	  [ruby-core:15713]
-
-Sat Mar  1 02:35:08 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* bignum.c (big2str_find_n1): check integer overflow.
-
-Tue Feb 26 16:06:00 2008  Technorama Ltd.  <oss-ruby@technorama.net>
-
-	* ext/openssl/ossl_pkey_{ec,dh,dsa,rsa}.c: Remove useless warnings.
-
-	* ext/openssl/ossl_asn1.c: Simplify code.
-
-	* ext/openssl/ossl_ssl_session.c Fix compiler warnings.
-	  Undefine #id if SSL_SESSION_get_id is not supported.
-
-Tue Feb 26 15:43:42 2008  Tanaka Akira  <akr@fsij.org>
-
-	* parse.y (tokadd_escape): refactored.  [ruby-core:15657]
-
-Mon Feb 25 17:30:29 2008  Technorama Ltd.  <oss-ruby@technorama.net>
-
-	* ext/openssl/digest.c ext/openssl/lib/openssl/digest.rb:
-	  Commit patch #9280 from Akinori MUSHA.
-	  Simplify the OpenSSL::Digest class and make use of the
-	  existing Digest framework.
-	  Enhance performance.
-
-Mon Feb 25 13:40:03 2008  Tanaka Akira  <akr@fsij.org>
-
-	* process.c (Init_process): share bignum objects for RLIM_INFINITY,
-	  RLIM_SAVED_MAX and RLIM_SAVED_CUR if they are equal.
-
-Sun Feb 24 23:29:48 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk, {bcc,win}32/Makefile.sub (clean-local): remove
-	  intermediate files.
-
-Sun Feb 24 03:52:58 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* util.c (valid_filename): use O_EXCL to get rid of clobbering
-	  existing files in race conditions.
-
-Fri Feb 22 19:50:19 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* bignum.c (BIGZEROP): fix for longer Bignum zeros.  [ruby-Bugs-17454]
-
-Fri Feb 22 16:09:53 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* bignum.c (rb_big_lshift, rb_big_rshift, rb_big_aref): removed excess
-	  arguments.
-
-Thu Feb 21 00:01:34 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (RPATHFLAG): -R option of HP-UX ld is not for runtime
-	  load path.  [ruby-list:44600]
-
-Wed Feb 20 23:55:19 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.c (rb_w32_map_errno): exported.
-
-Wed Feb 20 13:08:52 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* instruby.rb (parse_args): added --dir-mode, --script-mode and
-	  --cmd-type options.  [ruby-dev:33816]
-
-	* instruby.rb (parse_args): added bin-arch and bin-comm to install
-	  type, for compiled files and script files.
-
-	* instruby.rb (parse_args): deal with make style command line macros,
-	  and count as long syle options if prefixed with INSTALL_.
-
-	* instruby.rb (makedirs): use $dir_mode.  [ruby-dev:33805]
-
-	* instruby.rb (open_for_install): set file mode, which is now
-	  permission mode instead of access mode.
-
-	* instruby.rb (bin-comm): installs scripts with replacing shebang
-	  lines.
-
-Tue Feb 19 18:34:32 2008  Tanaka Akira  <akr@fsij.org>
-
-	* gc.c (STACK_LENGTH) [SPARC] : 0x80 offset removed.  [ruby-dev:33857]
-
-Tue Feb 19 14:27:32 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/readline/readline.c (readline_event): prevent polling.  based on
-	  a patch from error errorsson in [ruby-Bugs-17675].
-
-Tue Feb 19 12:08:29 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (yycompile): clear ruby_eval_tree_begin if parse failed.
-
-Mon Feb 18 16:23:45 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (yycompile): clear ruby_eval_tree_begin too before parse.
-
-Mon Feb 18 10:17:42 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/pty/lib/expect.rb (IO#expect): check if peer is closed.
-	  [ruby-Bugs-17940]
-
-Fri Feb 15 20:37:06 2008  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/rational.rb (floor, ceil, truncate, round): do not use
-	  definitions of Numeric.
-
-	* lib/rational.rb (to_i): should returns truncated self.
-
-	* lib/complex.rb (numerator): requires
-	  Integer#{numerator,denominator}.
-
-	* lib/complex.rb (quo): do not use definition of Numeric.
-
-	* lib/complex.rb (div, divmod, floor, ceil, truncate, round):
-	  undef'ed.
-
-Fri Feb 15 15:23:12 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/iconv/iconv.c (iconv_convert): check upper bound.  a patch from
-	  Daniel Luz at [ruby-Bugs-17910].
-
-Fri Feb 15 02:42:25 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (ftruncate): check if available.
-
-	* file.c (rb_file_truncate): check if ftruncate instead of truncate.
-
-Fri Feb 15 02:40:54 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (sigsetmask): check when signal semantics is not POSIX.
-
-	* signal.c (USE_TRAP_MASK): set true if sigprocmask or sigsetmask is
-	  available.
-
-Thu Feb 14 17:44:32 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/dl/ptr.c (dlmem_each_i): typo fixed.  a patch from IKOMA
-	  Yoshiki <ikoma AT mb.i-chubu.ne.jp> in [ruby-dev:33776].
-
-Thu Feb 14 16:02:51 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_file_s_utime): inhibits with secure level 2 or higher.
-
-Thu Feb 14 01:43:16 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/timeout.rb (Timeout::timeout): made sensitive to location on the
-	  stack.  [ruby-core:15458]
-
-Thu Feb 14 00:49:53 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk (INSTRUBY_ARGS): pass mode to install.  [ruby-dev:33766]
-
-	* instruby.rb (parse_args): added --data-mode and --prog-mode options.
-
-Tue Feb 12 11:33:26 2008  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* test/erb/test_erb.rb(TestERBCore): import from erb-2.0.4.
-
-	* test/erb/hello.erb: ditto
-
-Mon Feb 11 17:25:21 2008  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb (RSS::VERSION), test/rss/test_version.rb, NEWS:
-	  0.2.3 -> 0.2.4.
-
-	* lib/rss/maker.rb, lib/rss/maker/, test/rss/test_maker_2.0.rb:
-	  fixed a bug that RSS::Maker.make("0.9")'s item doesn't make some
-	  elements if description is missed.
-	  Reported by Michael Auzenne. Thanks!!!
-
-	* lib/rss/maker/0.9.rb, test/rss/test_maker_0.9.rb:
-	  RSS::Maker.make("0.9") generates RSS 0.92 not RSS 0.91.
-
-Mon Feb 11 16:57:00 2008  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* ChangeLog: format-time-string under C locale. [ruby-dev:33261]
-
-Mon Feb 11 16:31:47 2008  URABE Shyouhei  <shyouhei@ice.uec.ac.jp>
-
-	* gc.c (rb_newobj): prohibit call of rb_newobj() during gc.
-	  Submitted by Sylvain Joyeux [ruby-core:12099].
-
-	* ext/dl/ptr.c: do not use LONG2NUM() inside dlptr_free().
-	  Slightly modified fix bassed on a patch by Sylvain Joyeux
-	  [ruby-core:12099] [ ruby-bugs-11859 ] [ ruby-bugs-11882 ]
-	  [ ruby-patches-13151 ].
-
-Mon Feb 11 00:22:55 2008  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/benchmark.rb (Job::Benchmark#item): fix typo.
-
-Sat Feb  9 23:22:52 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/bigdecimal/extconf.rb: simplified the condition.
-
-Sat Feb  9 17:51:24 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/bigdecimal/bigdecimal.c (BigDecimal_to_f): use strtod() for more
-	  precision.  [ruby-talk:290296]
-
-	* ext/bigdecimal/bigdecimal.c (BASE_FIG): made constant.
-
-	* ext/bigdecimal/extconf.rb: ditto.  [ruby-dev:33658]
-
-Sat Feb  9 00:44:52 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/irb.rb (IRB::Irb::eval_input): rescues Interrupt and other than
-	  SystemExit and SignalException.  [ruby-core:15359]
-
-Fri Feb  8 15:09:21 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (xsystem): expand macros like as make.
-
-Tue Feb  5 11:14:11 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (INSTALL_DIRS, install_dirs): added BINDIR.
-
-	* lib/mkmf.rb (install_files): rejects files matching to
-	  $NONINSTALLFILES.
-
-	* lib/mkmf.rb (init_mkmf): defaults $NONINSTALLFILES to backup and
-	  temporary filse.
-
-Mon Feb  4 16:44:24 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (darwin): NSIG is not defined if _XOPEN_SOURCE > 500L.
-	  [ruby-dev:33584]
-
-Sat Feb  2 20:06:42 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/benchmark.rb (Benchmark::realtime): make Benchmark#realtime
-	  a bit faster.  a patch from Alexander Dymo <dymo AT ukrpost.ua> in
-	  [ruby-core:15337].
-
-Sat Feb  2 09:53:39 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (darwin): disabled fat-binary support which confuses
-	  configure much, since ``universal'' implies hidden cross-compiling.
-	  TODO: ruby and libruby.bundle might be possible to bound with `lipo'
-	  after builds for each archs.  Anyway, config.h and rbconfig.rb must
-	  be separated definitely at least.
-
-Fri Feb  1 21:42:37 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (darwin): _XOPEN_SOURCE is necessary to make ucontext_t
-	  consistent with the library implementation of MacOS X 10.5.
-	  [ruby-dev:33461]
-
-	* configure.in (darwin): ucontext on PowerPC MacOS X 10.5 is broken.
-
-Thu Jan 31 08:31:19 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk (ext/extmk.rb, instruby.rb): inlined $(MAKE) so that can
-	  be executed even with -n.
-
-Thu Jan 31 07:00:19 2008  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/rinda/tuplespace.rb (bin_for_find): should find a symbol by
-	  Symbol class.
-
-	* test/rinda/test_rinda.rb (test_symbol_tuple): ditto.
-
-Wed Jan 30 22:07:58 2008  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date.rb: refined deprecated methods.
-
-Wed Jan 30 22:06:54 2008  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* bignum.c (rb_cstr_to_inum): '0_2' is a valid representation.
-
-Tue Jan 29 22:40:12 2008  Yusuke Endoh  <mame@tsg.ne.jp>
-
-	* range.c (step_i): rb_funcall receives VALUE as an argument.
-
-Tue Jan 29 11:53:05 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in: rm largefile.h.
-
-Mon Jan 28 01:21:15 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (rb_open_file): should check NUL in path.
-	  <http://www.rubyist.net/~matz/20080125.html#c01>.
-
-	* io.c (rb_io_s_popen): ditto.
-
-	* io.c (rb_io_reopen): ditto.
-
-	* io.c (next_argv): ditto.
-
-	* io.c (rb_io_s_foreach): ditto.
-
-	* io.c (rb_io_s_readlines): ditto.
-
-	* io.c (rb_io_s_read): ditto.
-
-Fri Jan 25 22:33:38 2008  Yusuke Endoh  <mame@tsg.ne.jp>
-
-	* math.c: fix comment.  [ruby-dev:33276]
-
-Fri Jan 25 10:31:58 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* */*.bat: set svn:mime-type to text/batch.
-
-Thu Jan 24 19:36:22 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/uri/generic.rb (URI::Generic::inspect): use Kernel#to_s instead
-	  object_id with printf.  [ruby-dev:33347]
-
-Tue Jan 22 11:22:47 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/setup.mak ($(ARCH)): if a macro is appended by $(APPEND),
-	  a space will be inserted on the top of the line.
-
-	* win32/Makefile.sub (MKFILES): stop make process if Makefile is
-	  updated.
-
-Mon Jan 21 17:34:41 2008  Akinori MUSHA  <knu@iDaemons.org>
-
-	* io.c (rb_io_mode_flags, rb_io_mode_modenum): Ignore encoding
-	  options for forward compatibility.
-
-Mon Jan 21 12:50:02 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c, gc.c (setjmp): sigsetjmp is a macro on cygwin.
-
-Sat Jan 19 11:21:53 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (sigsetjmp): check if available.
-
-	* eval.c, gc.c (setjmp): do not use _setjmp if sigsetjmp is available.
-
-Sat Jan 19 11:10:11 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in: Remove wrong assumptions about Cygwin.  a patch from
-	  Corinna Vinschen in [ruby-Bugs-17018].
-
-Thu Jan 17 21:06:01 2008  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date.rb (Date::Infinity#<=>): didn't work.  A patch from
-	  Dirkjan Bussink <d.bussink AT gmail.com> [ruby-core:15098].
-	  This is a bug obviously.  However it didn't affect the library's
-	  functions.
-
-	* lib/date.rb, lib/date/format.rb: some trivial changes.
-
-Tue Jan 15 15:09:28 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/setup.mak: strip out empty lines from CPP output.
-
-Tue Jan 15 03:41:42 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (eval): check if backtrace is empty.  [ruby-core:15040]
-
-Tue Jan 15 01:28:47 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk: simplified dummy objects dependencies.
-
-Mon Jan 14 16:12:58 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/shellwords.rb: scape should be an alias to shellescape.  a
-	  patch from Masahiro Kawato <m-kawato AT mwb.biglobe.ne.jp> in
-	  [ruby-dev:33060].
-
-Mon Jan 14 09:32:40 2008  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/time.rb: do not reference Time directly from the inside of
-	  definitions. [ruby-dev:33059]
-
-Sat Jan 12 18:27:41 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_define_alloc_func, rb_undef_alloc_func): should
-	  define/undef on a signleton class.  [ruby-core:09959]
-
-Sat Jan 12 12:04:14 2008  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date.rb, lib/date/format.rb: tuning for performance.
-
-Fri Jan 11 12:35:56 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in: moved broken syscall checks from process.c etc.
-
-	* defines.h (WORDS_BIGENDIAN): honor __BIG_ENDIAN__ than the result of
-	  configure.
-
-	* dln.c: use dlopen on Mac OS X 10.3 or later.  backport from trunk.
-
-	* lib/rdoc/options.rb (check_diagram): more precise check, darwin
-	  is not Windows but minwg is on it.
-
-Thu Jan 10 10:53:50 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.c (rb_w32_open_osfhandle): reverted to old definition.
-	  [ ruby-Bugs-16948 ]
-
-Tue Jan  8 20:02:08 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win{32,ce}/Makefile.sub: merged.
-
-Sun Jan  6 09:39:02 2008  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date.rb, lib/date/format.rb: introduced some constants
-	  (for internal use).
-
-	* sample/cal.rb: trivial adjustments.
-
-Fri Jan  4 23:08:48 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* time.c (time_arg): use converted object.  [ruby-core:14759]
-
-Fri Jan  4 01:20:21 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32.h: only VC6 needs extern "C++" for math.h.  [ruby-talk:285660]
-
-Thu Jan  3 11:28:58 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (fptr_finalize): clear errno first.  [ruby-talk:284492]
-
-Wed Jan  2 10:18:56 2008  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* sample/time.rb: use Process.times instead of Time.times.
-
-Wed Jan  2 09:18:11 2008  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* sample/goodfriday.rb: examples for date are enough.  retired.
-
-Wed Jan  2 09:06:55 2008  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* sample/cal.rb: just updated with the newest version.
-
-Mon Dec 31 06:50:38 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* trunk/common.mk: not use -I$(srcdir)/lib with $(MINIRUBY) for cross
-	  compiling.
-
-	* configure.in, {win,bcc}32/Makefile.sub (MINIRUBY): -I$(srcdir)/lib
-	  moved.
-
-Sun Dec 30 22:48:37 2007  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date.rb (_valid_time?): I'm not sure to recommend such an
-	  expression.  but anyway it is acceptable now.  [ruby-core:14580]
-
-Fri Dec 28 16:36:33 2007  NARUSE, Yui  <naruse@airemix.com>
-
-       * lib/resolv.rb (Resolv::DNS#each_address): now returns IPv6 address.
-
-Fri Dec 28 13:21:32 2007  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb, test/rss/test_version.rb, NEWS: 0.2.2 -> 0.2.3.
-
-	* lib/rss/parser.rb, test/rss/test_parser.rb: supported "-" in tag name.
-	  Reported by Ray Chen. Thanks.
-
-Thu Dec 27 23:56:01 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* mkconfig.rb: should not use the libraries under the source directory
-	  at cross compiling.
-
-Thu Dec 27 11:02:45 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* intern.h, string.c (rb_str_set_len): added for upgrading path from
-	  1.8 to 1.9. [ruby-dev:32807]
-
-	* string.c (rb_str_lines, rb_str_bytes): ditto.
-
-Thu Dec 27 10:47:32 2007  Technorama Ltd.  <oss-ruby@technorama.net>
-
-	* ext/openssl/ossl_ssl.c: Only show a warning if the default
-	  DH callback is actually used.
-
-	* ext/openssl/ossl_rand.c: New method: random_add().
-
-Wed Dec 26 22:27:45 2007  NARUSE, Yui <naruse@ruby-lang.org>
-
-	* lib/resolv.rb (Resolv::DNS::Name.==): fix for other is array of
-	  Resolv::DNS::Label::Str.
-
-	* lib/resolv.rb (Resolv::DNS::MessageEncoder#put_label): String#string
-	  is not defined, so replace to_s.
-
-	* lib/resolv.rb (Resolv::IPv6#to_name): ip6.int is obsoleted by
-	  int.arpa.
-
-Mon Dec 24 16:18:57 2007  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/ri/ri_options.rb:  Fix ri --help listing of gem ri paths.
-	  Merge of r14567 and r14569 from trunk.
-
-	* lib/rdoc/ri/ri_paths.rb:  Fix duplication of ri data for multiple
-	  gems.  Merge of r14567 from trunk
-
-Mon Dec 24 12:35:03 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win{32,ce}/Makefile.sub (MFLAGS): defaulted to -l.
-
-Mon Dec 24 11:56:31 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* {bcc32,win{32,ce}}/Makefile.sub (SET_MAKE): set MFLAGS which is not
-	  set by default, to get rid of chaotic situation of MFLAGS/MAKEFLAGS.
-
-Sat Dec 22 14:49:46 2007  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date.rb: don't freeze nil even if 1.8 will not be aware of
-	  the issue. [ruby-dev:32677]
-
-Wed Dec 19 13:57:43 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (TIMEZONE_VOID): check whether timezone requires zero
-	  arguments.  [ruby-dev:32631]
-
-Wed Dec 19 12:01:42 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (f_rest_arg): check if duplicated.  [ruby-core:14140]
-
-Wed Dec 19 10:52:29 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* bignum.c (rb_cstr_to_inum): an underscore succeeding after octal
-	  prefix is allowed.  [ruby-core:14139]
-
-Mon Dec 17 13:43:15 2007  Tanaka Akira  <akr@fsij.org>
-
-	* gc.c (stack_end_address): use local variable address instead of
-	  __builtin_frame_address(0) to avoid SEGV on SunOS 5.11 on x86 with
-	  gcc (GCC) 3.4.3 (csl-sol210-3_4-20050802).
-	  stack_end_address returned a frame address of garbage_collect
-	  since stack_end_address doesn't create its own frame.
-	  So a VALUE stored in a callee saved register, %edi, pushed into
-	  the stack at the beginning of garbage_collect was not marked.
-
-Mon Dec 17 12:21:25 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* Makefile.in (RUNRUBY): added RUNRUBYOPT.
-
-Fri Dec 14 12:36:35 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (RUBY_CHECK_VARTYPE): check if a variable is defined
-	  and its type.
-
-	* configure.in (timezone, altzone): check for recent cygwin.
-
-	* missing/strftime.c (strftime): fix for timezone.  [ruby-dev:32536]
-
-	* lib/mkmf.rb (try_var): should fail for functions.
-
-	* ext/readline/extconf.rb: should use have_func for functions instead
-	  of have_var.
-
-Tue Dec 11 00:04:05 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* array.c (rb_ary_slice_bang): If an invalid negative index (<
-	  -size) is given, do not raise an exception but return nil just
-	  like slice() does.
-
-	* test/ruby/test_array.rb (TestArray::test_slice,
-	  TestArray::test_slice!): Pull in test cases from trunk.
-
-Mon Dec 10 21:47:53 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* transcode.c (str_transcode): allow non-registered encodings.
-	  [ruby-dev:32520]
-
-Mon Dec 10 21:00:30 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* array.c (rb_ary_slice_bang): should return nil if position out
-	  of range.  a patch from Akinori MUSHA <knu AT iDaemons.org>.
-	  [ruby-dev:32518]
-
-Mon Dec 10 18:28:06 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/uri/common.rb (URI::REGEXP::PATTERN): typo in REG_NAME
-	  regular expression.  a patch from Ueda Satoshi
-	  <s-ueda AT livedoor.jp>.  [ruby-dev:32514]
-
-Sun Dec  9 12:39:01 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/cgi.rb (read_multipart): exclude blanks from header values.
-	  [ruby-list:44327]
-
-Wed Dec  5 23:38:50 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* range.c (range_each): followed step_i change.
-
-Wed Dec  5 18:08:45 2007  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (int_odd_p): new method Integer#odd?.
-	  (int_even_p): new method Integer#even?.
-	  (int_pred): new method Integer#pred.
-	  (fix_odd_p): new method Fixnum#odd?.
-	  (fix_even_p): new method Fixnum#even?.
-
-Wed Dec  5 15:15:21 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* range.c (step_i, range_step): support non-fixnum steps.
-	  [ruby-talk:282100]
-
-Tue Dec  4 11:23:50 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* bignum.c (rb_cstr_to_inum): trailing spaces may exist at sqeezing
-	  preceeding 0s.  [ruby-core:13873]
-
-Sun Dec  2 22:43:45 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (error_print): put newline unless multiple line message ends
-	  with a newline.  [ruby-dev:32429]
-
-Sun Dec  2 15:49:20 2007  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb, test/rss/test_version.rb, NEWS: 0.2.1 -> 0.2.2.
-
-	* lib/rss/maker/itunes.rb: fixed new_itunes_category.
-	* lib/rss/maker/taxonomy.rb: new_taxo_topic -> new_topic because
-	  of consistency.
-
-	* test/rss/test_maker_itunes.rb, test/rss/test_itunes.rb: removed
-	  needless UTF-8 characters.
-
-Sun Dec  2 01:12:15 2007  James Edward Gray II  <jeg2@ruby-lang.org>
-
-	Merged 14070 from trunk.
-
-	* lib/xmlrpc/server.rb (XMLRPC::Server#server): Improve signal handling so
-	  pressing control-c in the controlling terminal or sending SIGTERM stops
-	  the XML-RPC server.
-
-Sat Dec  1 15:13:33 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/resolv.rb: documentation update.  backported from 1.9.
-	  [ruby-core:13273]
-
-Sat Dec  1 03:30:47 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (newline_node): set line from outermost node before removing
-	  NODE_BEGIN.  [ruby-dev:32406]
-
-Fri Nov 30 21:53:28 2007  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb, test/rss/test_version.rb: 0.2.0 -> 0.2.1.
-
-	* lib/rss/content.rb, lib/rss/content/1.0.rb,
-	  lib/rss/content/2.0.rb, lib/rss/maker/content.rb,
-	  test/rss/rss-testcase.rb, test/rss/test_content.rb,
-	  test/rss/test_maker_content.rb: supported content:encoded with RSS
-	  2.0.
-	  Suggested by Sam Lown. Thanks.
-
-	* NEWS: added the above changes.
-
-Thu Nov 29 16:59:10 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (stmt): remove unnecessary NODE_BEGIN.  [ruby-core:13814]
-
-Wed Nov 28 14:43:14 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb (extract_makefile): use dldflags instead of DLDFLAGS to
-	  get rid of mixing $LDFLAGS and $ARCH_FLAG.
-
-	* lib/mkmf.rb (configuration): ditto.
-
-	* lib/mkmf.rb (create_makefile): support for extensions which has no
-	  shared object.
-
-Wed Nov 28 09:51:42 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* bignum.c (rb_big2str0): do not clobber space for sign.
-
-	* sprintf.c (remove_sign_bits): extends sign bit first.
-
-Wed Nov 21 01:04:12 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* object.c (nil_plus): remove unused function.  [ruby-core:13737]
-
-Sun Nov 18 14:03:44 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_alias): do not call hook functions until initialization
-	  finishes.  [ruby-talk:279538]
-
-Sun Nov 18 09:09:48 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (String#tr_cpp): make preprocessor identifiers.
-
-Sat Nov 17 13:58:11 2007  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/win32ole.c (ole_invoke): bug fix. [ruby-talk:279100]
-
-Fri Nov 16 17:41:34 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/iconv/iconv.c (Document-class): moved the simplest example to
-	  the top.
-
-	* ext/iconv/iconv.c (iconv_s_iconv): Document-method: needs class
-	  prefix for class method.  [ruby-core:13542]
-
-	* ext/iconv/iconv.c (iconv_iconv): also instance method needs to be
-	  qualified.
-
-Fri Nov 16 11:16:41 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/yaml/rubytypes.rb (String#is_binary_data?): use Integer#fdiv.
-
-Thu Nov 15 19:50:46 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/curses/extconf.rb: check macro if cannot find func.
-	  [ruby-list:44224]
-
-Thu Nov 15 12:19:14 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/cgi/session.rb (CGI::Session::FileStore::restore): use
-	  lockfile for exclusive locks.  a patch from <tommy AT tmtm.org>.
-	  [ruby-dev:32296]
-
-Wed Nov 14 01:52:59 2007  Tanaka Akira  <akr@fsij.org>
-
-	* missing/isinf.c (isinf): don't define if the macro is defined.
-
-Wed Nov 14 01:34:42 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* numeric.c (round): fallback definition.
-
-	* numeric.c (flo_divmod, flo_round): use round() always.
-	  [ruby-dev:32269]
-
-Tue Nov 13 22:02:23 2007  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/drb.rb: remove Thread.exclusive.
-
-	* lib/drb/extservm.rb: ditto.
-
-Tue Nov 13 16:33:07 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* numeric.c (flodivmod): work around for infinity.
-
-	* numeric.c (flo_divmod): work around for platforms have no round().
-	  [ruby-dev:32247]
-
-Tue Nov 13 13:58:51 2007  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (numeric.c): Integer#ord implemented.  [ruby-dev:32206]
-
-Tue Nov 13 02:57:04 2007  URABE Shyouhei  <shyouhei@ice.uec.ac.jp>
-
-	* numeric.c (flo_divmod): round to the nearest integer.
-	  [ ruby-Bugs-14540 ]
-
-Mon Nov 12 16:52:29 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (create_makefile): rdoc about srcprefix.  a patch from
-	  Daniel Berger <djberg96 AT gmail.com> in [ruby-core:13378].
-
-Mon Nov 12 13:53:06 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* misc/ruby-mode.el (ruby-parse-partial): handle stringified
-	  symbols properly using ruby-forward-string.
-
-Mon Nov 12 12:38:31 2007  Tanaka Akira  <akr@fsij.org>
-
-	* Makefile.in (lex.c): don't remove lex.c at first.
-
-Fri Nov  9 07:26:04 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* random.c: update MT URL.[ruby-core:13305].
-
-Wed Nov  7 03:32:38 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/rexml/encodings/SHIFT-JIS.rb (REXML::Encoding): place -x for
-	  nkf conversion.  a patch from <moonwolf AT moonwolf.com>.
-	  [ruby-dev:32183]
-
-Mon Nov  5 05:17:04 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse.rb (OptionParser::Switch::summarize): fix for long form
-	  option with very long argument.  a patch from Kobayashi Noritada
-	  <nori1 AT dolphin.c.u-tokyo.ac.jp> in [ruby-list:44179].
-
-Mon Nov  5 01:20:33 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* parse.y (call_args): remove "parenthesize argument(s) for future
-	  version" warning.  when I added this warning, I had a plan to
-	  reimplement the parser that is simpler than the current one.
-	  since we abandoned the plan, warning no longer required.
-
-Fri Nov  2 00:13:51 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* array.c (rb_ary_assoc): check and convert inner arrays (assocs)
-	  using #to_ary.
-
-	* hash.c (rb_hash_s_create): check and convert argument hash
-	  using #to_hash.
-
-	* hash.c (rb_hash_s_create): Hash#[] now takes assocs as source of
-	  hash conversion.
-
-Thu Nov  1 23:47:43 2007  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/drb.rb (DRbTCPSocket): Improving with multiple network
-	  interface.
-
-	* test/drb/drbtest.rb: ditto.
-
-Fri Oct 26 17:14:14 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* numeric.c (fix_pow): returns 1.0 for 0**0.0.
-
-	* numeric.c (fix_pow): returns infinity for 0**-1.  [ruby-dev:32084]
-
-Wed Oct 25 07:18:09 2007  James Edward Gray II  <jeg2@ruby-lang.org>
-
-	Merged 13781 from trunk.
-
-	* lib/net/telnet.rb (Net::Telnet#login): Allowing "passphrase" in
-	  addition to "password" for Telnet login prompts. [ruby-Bugs-10746]
-
-Wed Oct 25 06:46:21 2007  James Edward Gray II  <jeg2@ruby-lang.org>
-
-	Merged 13779 from trunk.
-
-	* lib/net/telnet.rb (Net::Telnet#login): Making the password prompt
-	  pattern case insensitive. [ruby-Bugs-10746]
-
-Thu Oct 25 14:19:33 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (rb_io_tell, rb_io_seek): check errno too.  [ruby-dev:32093]
-
-Wed Oct 25 08:03:53 2007  James Edward Gray II  <jeg2@ruby-lang.org>
-
-	Merged 13767, 13768, 13769, and 13770 from trunk.
-
-	* lib/xmlrpc/parser.rb (XMLRPC::Convert::dateTime): Fixing a bug that
-	  caused time zone conversion to fail for some ISO 8601 date formats.
-	  [ruby-Bugs-12677]
-
-	* lib/xmlrpc/client.rb (XMLRPC::Client#do_rpc): Explicitly start
-	  the HTTP connection to support keepalive requests. [ruby-Bugs-9353]
-
-	* lib/xmlrpc/client.rb (XMLRPC::Client#do_rpc): Improving the error
-	  message for Content-Type check failures. [ruby-core:12163]
-
-	* lib/xmlrpc/utils.rb (XMLRPC::ParseContentType#parse_content_type):
-	  Making Content-Type checks case insensitive. [ruby-Bugs-3367]
-
-Sun Oct 21 21:16:43 2007  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss.rb, lib/rss/, test/rss/, sample/rss/: merged from trunk.
-	- 0.1.6 -> 2.0.0.
-	- fixed image module URI. Thanks to Dmitry Borodaenko.
-	- supported Atom.
-	- supported ITunes module.
-	- supported Slash module.
-
-	* NEWS: added an entry for RSS Parser.
-
-Thu Oct 18 10:57:06 2007  Tanaka Akira  <akr@fsij.org>
-
-	* ruby.h (RCLASS_IV_TBL): defined.
-	  (RCLASS_M_TBL): ditto.
-	  (RCLASS_SUPER): ditto.
-	  (RMODULE_IV_TBL): ditto.
-	  (RMODULE_M_TBL): ditto.
-	  (RMODULE_SUPER): ditto.
-
-Mon Oct 15 22:08:55 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* NEWS: Merge some of the sub-sections, as the differences were
-	  unclear.
-
-Mon Oct 15 21:57:07 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* NEWS: Mention ipaddr enhancements.
-
-	* lib/ipaddr.rb (in_addr, in6_addr, addr_mask): Make some minor
-	  code optimization.
-
-	* lib/ipaddr.rb (<=>): Implement IPAddr#<=> and make IPAddr
-	  comparable.
-
-	* lib/ipaddr.rb (succ): Implement IPAddr#succ.  You can now create
-	  a range between two IPAddr's, which (Range) object is
-	  enumerable.
-
-	* lib/ipaddr.rb (to_range): A new method to create a Range object
-	  for the (network) address.
-
-	* lib/ipaddr.rb (coerce_other): Support type coercion and make &,
-	  |, == and include? accept a string or an integer instead of an
-	  IPAddr object as the argument.
-
-	* lib/ipaddr.rb (initialize): Give better error messages.
-
-	* lib/ipaddr.rb: Improve documentation.
-
-Mon Oct 15 21:24:25 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* NEWS: Mention shellwords and tempfile enhancements.
-
-	* NEWS: Move the entry about Tk::X_Scrollable to a better section.
-
-Mon Oct 15 17:28:20 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/openssl/lib/openssl/buffering.rb (read, readpartial): revert
-	  r12496. handling EOF is a little differnt in ruby 1.8 and ruby 1.9.
-	  [ruby-dev:31979]
-
-Mon Oct 15 11:45:12 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* marshal.c (r_bytes0): refined length check.  [ruby-dev:32059]
-
-Mon Oct 15 09:58:07 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* marshal.c (r_bytes0): check if source has enough data.
-	  [ruby-dev:32054]
-
-Mon Oct 15 01:15:09 2007  Tanaka Akira  <akr@fsij.org>
-
-	* ext/socket/socket.c (s_accept_nonblock): make accepted fd
-	  nonblocking.  [ruby-talk:274079]
-
-Sun Oct 14 04:08:34 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (AC_SYS_LARGEFILE): keep results also in command
-	  options, to vail out of mismatch.  [ruby-list:44114]
-
-	* mkconfig.rb, lib/mkmf.rb (configuration): add DEFS.
-
-Sun Oct 14 03:55:52 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/mkexports.rb: deal with __fastcall name decorations.
-	  [ruby-list:44111]
-
-Sat Oct 13 09:02:16 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* {bcc,win}32/mkexports.rb: explicit data.  [ruby-list:44108]
-
-Sat Oct 13 00:35:03 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/rexml/source.rb (REXML::SourceFactory::SourceFactory): typo
-	  fixed.  [ruby-list:44099]
-
-Fri Oct 12 11:22:15 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* re.c (match_values_at): make #select to be alias to #values_at
-	  to adapt RDoc description.  [ruby-core:12588]
-
-Thu Oct 11 14:32:46 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* {bcc32,win32}/Makefile.sub (COMMON_MACROS): workaround for old SDK's
-	  bug. [ruby-core:12584]
-
-Wed Oct 10 23:34:45 2007  Tanaka Akira  <akr@fsij.org>
-
-	* lib/securerandom.rb: new file.  [ruby-dev:31928]
-
-	* lib/cgi/session.rb (create_new_id): use securerandom if available.
-
-Tue Oct  9 01:01:55 2007  Tanaka Akira  <akr@fsij.org>
-
-	* re.c (rb_reg_s_union_m): Regexp.union accepts single
-	  argument which is an array of patterns.  [ruby-list:44084]
-
-Mon Oct  8 20:06:23 2007  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/net/http.rb, lib/open-uri.rb: remove
-	  Net::HTTP#enable_post_connection_check.  [ruby-dev:31960]
-
-	* lib/net/imap.rb: hostname should be verified against server's
-	  indentity as persented in the server's certificate. [ruby-dev:31960]
-
-	* ext/openssl/lib/net/telnets.rb, ext/openssl/lib/net/ftptls.rb: ditto.
-
-Sat Oct  6 23:14:54 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* string.c (rb_fs_setter): check and convert $; value at
+	  assignment.
 
-	* string.c (rb_str_to_i): update RDoc since base can be any value
-	  between 2 and 36.  [ruby-talk:272879]
+Tue Aug 23 02:09:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Oct  5 15:44:50 2007  Akinori MUSHA  <knu@iDaemons.org>
+	* string.c (rb_str_split_m): show $; name in error message when it
+	  is a wrong object.
 
-	* lib/shellwords.rb: Add shellescape() and shelljoin().
+Mon Aug 22 16:29:52 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/shellwords.rb: Rename shellwords() to shellsplit() and make
-	  the former an alias to the latter.
+	* lib/csv.rb (CSV#shift): store partial quoted strings in an array
+	  and join at last, to improve performance with very long quoted
+	  lines.  [ruby-core:76987] [Bug #12691]
 
-	* lib/shellwords.rb: Add escape(), split(), join() as class
-	  methods, which are aliases to their respective long names
-	  prefixed with `shell'.
+Mon Aug 22 14:35:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/shellwords.rb: Add String#shellescape(), String#shellsplit()
-	  and Array#shelljoin() for convenience.
+	* man/irb.1: remove useless -width option.
+	  [ruby-dev:49767] [Bug #12692]
 
-Fri Oct  5 15:40:04 2007  Akinori MUSHA  <knu@iDaemons.org>
+Mon Aug 22 09:02:56 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/tempfile.rb (Tempfile::make_tmpname): Allow to specify a
-	  suffix for a temporary file name.
+	* iseq.c (Init_ISeq): undefine allocator of InstructionSequence,
+	  to get rid of segfaults at method call on uninitialized object.
 
-	* lib/tempfile.rb (Tempfile::make_tmpname): Make temporary file
-	  names less predictable by including a random string.
-	  [inspired by: akr]
+Sat Aug 21 05:47:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-Tue Oct  2 21:20:14 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* enum.c (enum_sort): prevent wasteful array duplication.
 
-	* win32/win32.c (make_cmdvector): adjust escaped successive
-	  double-quote handling. (merge from trunk)
+Sat Aug 20 11:20:32 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Oct  2 20:35:24 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* rubystub.c: generalize win32/stub.c.
 
-	* win32/win32.c (init_env): initialize HOME and USER environment
-	  variables unless set. [ruby-core:12328] (merge from trunk)
+Fri Aug 19 11:39:06 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* win32/win32.c (NtInitialize, getlogin): ditto.
+	* parse.y (primary): allow parenthesised statement as a method
+	  argument.  [Feature #12686]
 
-	* configure.in, win32/Makefile.sub (LIBS): need to link shell32
-	  library for SH* functions on mswin32 and mingw32.
+Fri Aug 19 09:12:45 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Oct  1 12:50:59 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* vm.c (vm_set_main_stack): TOPLEVEL_BINDING must be built.
+	  http://www.viva64.com/en/b/0414/#ID0EQ1CI  [ruby-core:76973]
 
-	* gc.c (id2ref): valid id should not refer T_VALUE nor T_ICLASS.
-	  [ruby-dev:31911]
+Fri Aug 19 01:00:53 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
 
-Wed Sep 26 23:54:37 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* proc.c (mnew_missing): Remove an unused argument.
+	  After r51126 rid is not used.
 
-	* ext/extmk.rb (extmake), lib/mkmf.rb (configuration): top_srcdir
-	  should not prefixed with DESTDIR.
+Thu Aug 18 09:26:52 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Wed Sep 26 08:36:31 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* gems/bundled_gems: bump to test-unit-3.2.1
 
-	* Makefile.in (ext/extinit.o): use $(OUTFLAG) as well as other
-	  objects.  [ruby-Bugs-14228]
+Thu Aug 18 02:36:26 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Sep 26 05:12:17 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* tool/rbinstall.rb: skip gems which failed to build extensions.
+	  [ruby-dev:49764] [Bug #12683]
 
-	* parse.y (yyerror): limit error message length.  [ruby-dev:31848]
+Wed Aug 17 23:35:12 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* regex.c (re_mbc_startpos): separated from re_adjust_startpos.
+	* gems/bundled_gems (tk): bump up to 0.1.1.
 
-Tue Sep 25 13:47:38 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Wed Aug 17 23:14:42 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* eval.c (remove_method): should not remove undef place holder.
-	  [ruby-dev:31817]
+	* ext/extmk.rb: build gem extensions into separate directories
 
-Mon Sep 24 16:52:11 2007  Urabe Shyouhei  <shyouhei@ruby-lang.org>
+	* tool/rbinstall.rb: install pre-built gem extension files gem
+	  extension directories.  [ruby-core:76931] [Bug #12681]
 
-	* lib/net/http.rb: fix typo.
+Tue Aug 16 21:04:30 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Sep 23 21:57:25 2007  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* common.mk (UNICODE_HDR_DIR): separate unicode header files from
+	  unicode data files.  [ruby-core:76879] [Bug #12677]
 
-	* lib/net/http.rb: an SSL verification (the server hostname should
-	  be matched with its certificate's commonName) is added.
-	  this verification can be skipped by
-	  "Net::HTTP#enable_post_connection_check=(false)".
-	  suggested by Chris Clark <cclark at isecpartners.com>
+Tue Aug 16 11:17:51 2016  Koichi ITO  <koic.ito@gmail.com>
 
-	* lib/net/open-uri.rb: use Net::HTTP#enable_post_connection_check to
-	  perform SSL post connection check.
+	* lib/net/http/header.rb: Fix typo. [ci skip][fix GH-1407]
+	* transcode.c: ditto.
 
-	* ext/openssl/lib/openssl/ssl.c
-	  (OpenSSL::SSL::SSLSocket#post_connection_check): refine error message.
+Tue Aug 16 11:02:31 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Sep 23 09:05:05 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* tool/make-snapshot (package): save generated header files from
+	  unicode data.  [ruby-core:76879] [Bug #12677]
 
-	* gc.c (os_obj_of, os_each_obj): hide objects to be finalized.
-	  [ruby-dev:31810]
+Mon Aug 15 20:31:34 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Sep 23 08:58:01 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* node.c (dump_array): show nd_alen field in NODE_ARRAY only in
+	  the first node.  it is nd_end in the rest nodes.
 
-	* eval_method.ci (rb_attr): should not use alloca for unknowen size
-	  input.  [ruby-dev:31816]
+Mon Aug 15 16:41:32 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-	* parse.y (rb_intern_str): prevent str from optimization.
+	* appveyor.yml: Update libressl version to 2.3.7.
 
-Sun Sep 23 05:42:35 2007  URABE Shyouhei  <shyouhei@ruby-lang.org>
+Mon Aug 15 11:46:50 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rdoc/options.rb (Options::check_diagram): dot -V output
-	  changed. [ ruby-Bugs-11978 ], Thanks Florian Frank.
+	* ext/extmk.rb (extmake): extension libraries in gems cannot link
+	  statically.
 
-Sat Sep 22 06:02:11 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Aug 14 22:35:40 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/optparse.rb (OptionParser::List::summarize): use each_line if
-	  defined rather than each.  [ruby-Patches-14096]
+	* id_table.c (hash_table_extend): should not shrink the table than
+	  the previous capacity.  [ruby-core:76534] [Bug #12614]
 
-Sat Sep 22 05:19:49 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Aug 14 18:51:24 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/stringio/stringio.c (strio_init): separate from strio_initialize
-	  to share with strio_reopen properly.  [ruby-Bugs-13919]
+	* gems/bundled_gems: add gemified tk 0.1.0.
+	  this needs `extract-gems` to build.
 
-Fri Sep 21 15:46:20 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Aug 14 14:54:14 2016  Kouhei Sutou  <kou@cozmixng.org>
 
-	* process.c (struct rb_exec_arg): proc should be a VALUE.
+	* object.c (InitVM_Object): Update referenced document path.
 
-	* process.c (rb_f_exec): suppress a warning.
+Sat Aug 13 23:08:01 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Sep 21 03:05:35 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* numeric.c (num_funcall0, num_funcall1): get rid of infinite
+	  recursion in fallback methods of Numeric.
 
-	* eval.c, intern.h, ext/thread/thread.c: should not free queue while
-	  any live threads are waiting.  [ruby-dev:30653]
+Sat Aug 13 11:10:08 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Sep 20 17:24:59 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* parse.y (command_asgn, arg): fix syntax errors with chained
+	  assignment with op assign.  [Bug #12669]
 
-	* process.c (rb_detach_process): cast for the platforms where size of
-	  pointer differs from size of int.
+Sat Aug 13 10:52:19 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* process.c (rb_f_exec, rb_f_system): should not exceptions after
-	  fork.  [ruby-core:08262]
+	* parse.y (stmt, arg): rescue modifier in command op assignment
+	  should be limited to rhs only.  [ruby-core:75621] [Bug #12402]
 
-Fri Sep 14 00:34:25 2007  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+Sat Aug 13 07:51:40 2016  Masaki Suketa <masaki.suketa@nifty.ne.jp>
 
-	* lib/drb/extservm.rb (invoke_service): use Thread.exclusive instead of
-	  Thread.critical
+	* ext/win32ole/win32ole.c (ole_val2variant): fix integer conversion in
+	  cygwin64.
 
-Wed Sep 12 23:12:22 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Fri Aug 12 21:05:19 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* ruby.c (proc_options): -W should be allowed in RUBYOPT
-	  environment variable.  [ruby-core:12118]
+	* lib/webrick/config.rb (WEBrick::Config::General):
+	  disable reverse lookup by default. [ruby-core:45514] [Feature #6559]
+	  Socket.do_not_reverse_lookup is true by default but WEBrick
+	  overwrote it.
+	  patch by Eric Hodel [ruby-core:45527]
 
-Mon Sep 10 01:05:25 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Fri Aug 12 12:50:31 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* range.c (range_step): fixed integer overflow.  [ruby-dev:31763]
+	* error.c (rb_syntax_error_append): fix newline in syntax error
+	  message to the beginning, not after file name and line number.
+	  [Feature #11951]
 
-Sun Sep  9 09:14:45 2007  Tadayoshi Funaba  <tadf@dotrb.org>
+Thu Aug 11 16:24:23 2016  Ferdinand Niedermann  <nerdinand@nerdinand.com>
 
-	* lib/date/format.rb (_strptime): now also attaches an element
-	  which denotes leftover substring if exists.
+	* compar.c (cmp_clamp): Introduce Comparable#clamp.  [Feature #10594]
 
-Sat Sep  8 10:22:20 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Thu Aug 11 03:16:59 2016  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
 
-	* struct.c (rb_struct_s_members): should raise TypeError instead
-	  of call rb_bug().  [ruby-dev:31709]
+	* lib/prime.rb: Optimize prime?
+	  Adapted from patch by Jabari Zakiya [#12665]
 
-	* marshal.c (r_object0): no nil check require any more.
+	* test/test_prime.rb: Improve test
 
-Sat Sep  8 09:38:19 2007  Tadayoshi Funaba  <tadf@dotrb.org>
+Wed Aug 10 22:37:01 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/date/format.rb (str[fp]time): now check specifications more
-	  strictly.
+	* parse.y (command_rhs, arg_rhs): introduce new rules to reduce
+	  repeated rules with rescue modifier.
 
-Fri Sep  7 05:36:19 2007  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+Wed Aug 10 17:26:43 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/rinda/test_rinda.rb (MockClock): correct synchronous problems
-	  of the MultiThreading. [ruby-dev:31692]
+	* parse.y (command_asgn): rescue modifier in command assignment
+	  should be limited to rhs only.  [ruby-core:75621] [Bug #12402]
 
-Wed Sep  5 22:02:27 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Wed Aug 10 15:35:03 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* array.c (rb_ary_subseq): need integer overflow check.
-	  [ruby-dev:31736]
+	* ext/win32/resolv/resolv.c: needs windows.h for iphlpapi.h on
+	  cygwin.  [ruby-core:76791] [Bug #12663]
 
-	* array.c (rb_ary_splice): ditto.  [ruby-dev:31737]
+	* ext/win32/resolv/resolv.c (w32error_make_error): use
+	  Win32::Resolv::Error, an alias of Win32::Registry::Error.
 
-	* array.c (rb_ary_fill): ditto.  [ruby-dev:31738]
+Tue Aug  9 17:50:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* string.c (rb_str_splice): integer overflow for length.
-	  [ruby-dev:31739]
+	* hash.c (rb_hash_map_v, rb_hash_map_v_bang): implement Hash#map_v and
+	  Hash#map_v! [Feature #12512] [ruby-core:76095]
 
-Sun Sep  2 00:48:15 2007  Tadayoshi Funaba  <tadf@dotrb.org>
+	* test/ruby/test_hash.rb: add tests for above change.
 
-	* lib/date/format.rb (_parse): improved parsing of ordinal dates.
+Tue Aug  9 16:09:03 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/date/format.rb (_parse): use named character classes in some
-	  regular expressions.
+	* vm_insnhelper.c (vm_getivar): use always_inline because
+	  gcc7 doesn't inline this without always_inline.
 
-Sat Sep  1 08:13:36 2007  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
+Tue Aug  9 15:41:24 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* ext/win32ole/win32ole.c: add WIN32OLE#ole_activex_initialize.
+	* ext/tk: Tk is removed from stdlib.  [Feature #8539]
+	  https://github.com/ruby/tk is the new upstream.
 
-Thu Aug 30 13:13:13 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Aug  9 00:12:31 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-	* lib/mkmf.rb (try_const, have_const): check for a const is defined.
-	  [ruby-core:04422]
+	* doc/maintainers.rdoc: Remove moved file section.
 
-Thu Aug 30 13:10:57 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Aug  8 20:56:46 2016  Masaki Suketa <masaki.suketa@nifty.ne.jp>
 
-	* configure.in (group_member): check if presents.
+	* ext/win32ole/sample/excel1.rb, ext/win32ole/sample/excel2.rb,
+	  ext/win32ole/sample/excel3.rb, ext/win32ole/sample/ie.rb,
+	  ext/win32ole/sample/ienavi.rb, ext/win32ole/sample/ienavi2.rb: use
+	  true instead of deprecated TRUE. [ci skip]
 
-	* configure.in (XCFLAGS): add _GNU_SOURCE on linux.
+Mon Aug  8 12:51:12 2016  Zarko Todorovski <zarko@ca.ibm.com>
 
-	* file.c (group_member): use system routine if available.
+	* internal.h (RBASIC_CLEAR_CLASS): Reroute ANSI C's strict
+	  aliasing rule.
+	  [ruby-core:74427][Bug #12191][ruby-core:76747][Bug #12657]
 
-Thu Aug 30 08:24:18 2007  Tanaka Akira  <akr@fsij.org>
+Sun Aug  7 18:08:27 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ruby.h (RHASH_TBL): defined for compatibility to 1.9.
-	* (RHASH_ITER_LEV): ditto.
-	* (RHASH_IFNONE): ditto.
-	* (RHASH_SIZE): ditto.
-	* (RHASH_EMPTY_P): ditto.
+	* object.c (InitVM_Object): deprecate toplevel constants TRUE,
+	  FALSE, and NIL.  [Feature #12574]
 
-Wed Aug 29 13:05:59 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Sun Aug  7 06:48:21 2016  Eric Wong  <e@80x24.org>
 
-	* include/ruby/defines.h (flush_register_windows): call "ta 0x03"
-	  even on Linux/Sparc.  [ruby-dev:31674]
+	* ext/openssl/ossl_ssl.c (ossl_ssl_write_internal):
+	  avoid undefined behavior
+	* test/openssl/test_pair.rb (test_write_zero): new test
+	  [ruby-core:76751] [Bug #12660]
 
-Tue Aug 28 23:26:12 2007  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
+Sat Aug  6 09:35:30 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/win32ole/win32ole.c (ole_type_progid, reg_enum_key,
-	  reg_get_val, ole_wc2mb): fix the bug. Thanks, arton.
-	  [ruby-dev:31576]
+	* id_table.h (rb_id_table_iterator_result): add dummy sentinel
+	  member because C standard prohibits a trailing comma.
 
-Mon Aug 27 19:10:50 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Sat Aug  6 00:39:44 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/etc/etc.c (etc_getlogin): update documentation to note
-	  security issue.  [ruby-Bugs-11821]
+	* hash.c (env_enc_str_new): make string for an environment
+	  variable name or value.
 
-Tue Aug 21 21:09:48 2007  Tanaka Akira  <akr@fsij.org>
+	* hash.c (env_name_new): make environment value string with the
+	  encoding for its name.
 
-	* lib/tmpdir.rb (Dir.mktmpdir): make directory suffix specifiable.
+Fri Aug  5 23:18:35 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Tue Aug 21 13:57:04 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* hash.c (env_str_new): taint the string.  get rid of a test failure
+	  introduced at r55811.
 
-	* hash.c (st_foreach_func, rb_foreach_func): typedefed.
+Fri Aug  5 17:04:02 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Aug 20 17:25:33 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* hash.c (w32_getenv): call rb_w32_getenv and rb_w32_ugetenv via
+	  this pointer without further comparisons.
 
-	* eval.c (mnew): should preserve noex as safe_level.
+Thu Aug  4 11:54:30 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* eval.c (rb_call0): tighten security check condition..
+	* hash.c (env_assoc): the encoding of the value should be the
+	  locale, as well as other methods, [], fetch, values, etc.
 
-Sat Aug 18 21:32:20 2007  Tanaka Akira  <akr@fsij.org>
+Wed Aug  3 21:31:23 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/tmpdir.rb (Dir.mktmpdir): new method.
-	  [ruby-dev:31462]
+	* parse.y (reg_fragment_enc_error): compile_error is different
+	  between parser and ripper.  [ruby-core:76397] [Bug #12651]
 
-Sat Aug 18 17:44:42 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Aug  3 17:15:06 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/tk/tcltklib.c (Init_tcltklib): use rb_set_end_proc().
+	* object.c (rb_obj_clone2): restrict freeze option to true other
+	  than false which only has the effect.  [Feature #12300]
 
-Sat Aug 18 15:59:52 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Aug  3 10:47:07 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* process.c (detach_process_watcher): should not pass the pointer
-	  to an auto variable to the thread to be created.  pointed and
-	  fix by KUBO Takehiro <kubo at jiubao.org>  [ruby-dev:30618]
+	* vm_core.h: introduce VM_FRAME_RUBYFRAME_P()
+	  and VM_FRAME_CFRAME_P().
+	  Most of case, RUBY_VM_NORMAL_ISEQ_P() is no
+	  longer needed.
 
-Sat Aug 18 12:24:30 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_core.h: introduce rb_obj_is_iseq().
 
-	* sample/test.rb, test/ruby/test_system.rb(valid_syntax?): keep
-	  comment lines first.
+	* cont.c, vm.c: VM_FRAME_MAGIC_DUMMY with
+	  VM_FRAME_FLAG_CFRAME.
 
-Thu Aug 16 20:40:50 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Wed Aug  3 09:25:16 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* bignum.c (bigtrunc): RBIGNUM(x)->len may be zero.  out of bound
-	  access.  [ruby-dev:31404]
+	* vm_core.h: rename macros and make them inline functions.
 
-Thu Aug 16 16:46:07 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  * rename VM_FRAME_TYPE_FINISH_P() to VM_FRAME_FINISHED_P().
+	  * rename VM_FRAME_TYPE_BMETHOD_P() to VM_FRAME_BMETHOD_P().
 
-	* configure.in (aix): enable shared by default.
+Wed Aug 03 09:15:02 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* configure.in (aix): for 64bit-mode AIX.  [ruby-dev:31401]
-	  + use CC for LDSHARED if non-gcc,
-	  + moved -G option from *LDFLAGS to LDSHARED,
-	  + set -brtl only in XLDFLAGS.
+	* vm_core.h: introduce VM_FRAME_FLAG_CFRAME to represent cfp->iseq
+	  type.
 
-Thu Aug 16 13:06:08 2007  Tanaka Akira  <akr@fsij.org>
+Tue Aug  2 21:42:40 2016  Chia-sheng Chen  <qitar888@gmail.com>
 
-	* bignum.c (big_lshift): make shift offset long type.
-	  (big_rshift): ditto.
-	  (rb_big_lshift): ditto.
-	  (big_rshift): ditto.
-	  [ruby-dev:31434]
+	* math.c (tanh): make faster by the extract form if three
+	  hyperbolic functions are unavailable.  [Feature #12647]
 
-Thu Aug 16 04:09:19 2007  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+Tue Aug  2 12:37:00 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rinda/tuplespace.rb (Rinda::TupleSpace#start_keeper): improve
-	  keeper thread.
+	* ext/socket/option.c, ext/socket/rubysocket.h (inet_ntop): share
+	  the fallback definition.  [ruby-core:76646] [Bug #12645]
 
-Wed Aug 15 13:50:10 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Aug  2 04:07:29 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* hash.c (rb_hash_delete_key): delete the entry without calling block.
+	* win32/win32.c (set_pioinfo_extra): use more reliable way to search
+	  the position of pioinfo of VC14, and also support debug library of it.
+	  patched by davispuh AT gmail.com
+	  [ruby-core:76644] [Bug #12644]
+	  this fixes also [Bug #12631]
 
-	* hash.c (rb_hash_shift): should consider iter_lev too.
+Mon Aug  1 21:39:52 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* hash.c (delete_if_i): use rb_hash_delete_key() so that the block
-	  isn't called twice.  [ruby-core:11556]
+	* ext/extmk.rb: [EXPERIMENTAL] build extension libraries in
+	  extracted gems.
 
-Sun Arg 12 03:56:30 2007  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+Mon Aug  1 16:07:18 2016  URABE Shyouhei  <shyouhei@ruby-lang.org>
 
-	* lib/rinda/tuplespace.rb: fix Rinda::TupleSpace keeper thread bug.
-	  the thread is started too early. [ruby-talk:264062]
+	* include/ruby/ruby.h (struct RStruct): no longer.
 
-	* test/rinda/test_rinda.rb: ditto.
+	* internal.h (struct RStruct): moved here.
 
-Sat Aug 11 07:34:10 2007  Tadayoshi Funaba  <tadf@dotrb.org>
+	* struct.c (rb_struct_ptr): a compensation function for the lack
+	  of RSTRUCT_PTR.  But now that we have RSTRUCT_GET/SET, that must
+	  not be used anyway.  I mark this deprecated.  Dont use it.
 
-	* lib/date/format.rb: reverted some wrongly erased "o" options
-	  (pointed out by nobu).
+Mon Aug  1 14:50:06 2016  Jeremy Evans <code@jeremyevans.net>
 
-Tue Aug  7 14:58:39 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* object.c (rb_obj_clone2): Allow Object#clone to take freeze:
+	  false keyword argument to not freeze the clone.
+	  [ruby-core:75017][Feature #12300]
 
-	* ext/pty/pty.c (establishShell): handshaking before close slave
-	  device.  [ruby-talk:263410]
+	* test/ruby/test_object.rb (TestObject): test for it.
 
-	* ext/pty/pty.c (MasterDevice, SlaveDevice, deviceNo): constified.
+Mon Aug  1 12:16:19 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/pty/pty.c (SlaveName): removed static buffer.
+	* ext/json/*, test/json/json_parser_test.rb: Update json-2.0.2.
 
-	* ext/pty/expect_sample.rb: support for autologin.
+Sun Jul 31 16:17:23 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Aug  7 12:45:13 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/win32/resolv/resolv.c (get_dns_server_list): [Win32] get DNS
+	  servers only for connected network devices by GetNetworkParams
+	  API.  [Bug #12604]
 
-	* configure.in (ac_cv_func_isinf): set yes also on OpenSolaris.
-	  [ruby-Bugs-12859]
+Sat Jul 30 12:13:26 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Mon Aug  6 17:36:29 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* string.c (String#downcase), NEWS: Mentioned that case mapping for all
+	  of ISO-8859-1~16 is now supported. [ci skip]
 
-	* lib/rexml/encodings/{ISO-8859-15,CP-1252}.rb: fixed invalid syntax.
+Sat Jul 30 12:00:01 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Fri Aug  3 11:05:54 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* enc/iso_8859_2.c, test/ruby/enc/test_case_comprehensive.rb:
+	  Implement non-ASCII case conversion for ISO-8859-2, by Yushiro Ishii.
 
-	* ext/extmk.rb (extmake): save all CONFIG values.
+Fri Jul 29 20:57:12 2016  chuanshuo  <lilijreey@126.com>
 
-	* ext/extmk.rb (extmake): remove mkmf.log at clean, and extconf.h at
-	  distclean, respectively.
+	* *.c: rename rb_funcall2 to rb_funcallv, except for extensions
+	  which are/will be/may be gems.  [Fix GH-1406]
 
-	* ext/extmk.rb: remove rdoc at clean, and installed list file at
-	  distclean, respectively.
+Fri Jul 29 10:51:34 2016  Koichi Sasada  <ko1@atdot.net>
 
-Fri Aug  3 07:09:05 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* proc.c (env_write): remove unused function.
 
-	* lib/mkmf.rb: more verbose message.  [ruby-Bugs-12766]
+Fri Jul 29 10:49:52 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/mkmf.rb (have_type): suppress a warning with -Wall.
+	* vm_core.h (VM_LOCAL_P): should return an integer value.
+	  reported at
+	  http://d.hatena.ne.jp/nagachika/20160728/ruby_trunk_changes_55764_55770
 
-	* lib/mkmf.rb (find_type): new method.
+Fri Jul 29 04:23:08 2016  Koichi Sasada  <ko1@atdot.net>
 
-Thu Aug  2 13:46:39 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_core.h (VM_ENV_LOCAL_P): return truthy (0 or not) value.
 
-	* sprintf.c (rb_f_sprintf): should not check positional number as
-	  width.  [ruby-core:11838]
+	* vm.c (rb_vm_make_proc_lambda): use VM_ENV_ESCAPED_P() macro.
 
-Mon Jul 30 11:16:40 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jul 29 03:49:04 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* bignum.c (rb_big_aref): check for Bignum index range.
-	  [ruby-dev:31271]
+	* vm.c, internal.h: remove RubyVM::Env class and all of env objects
+	  are imemo objects (imemo_env).
 
-Sat Jul 28 09:35:41 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* NEWS: describe this change. I believe nobody touch these objects
+	  because there are no method defined.
 
-	* ext/digest/lib/digest.rb (Digest::self.const_missing): avoid
-	  infinite recursive const_missing call.  [ruby-talk:262193]
+	* vm_core.h: remove the following definitions.
+	  * rb_cEnv decl.
+	  * GetEnvPtr() because Env is no longer T_DATA object.
 
-Thu Jul 26 13:57:45 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_core.h (rb_env_t): fix layout for imemo values.
 
-	* dln.c (load_1, dln_find_1): constified.
+	* vm_core.h (vm_assert_env): added.
 
-	* dln.c (conv_to_posix_path): removed.
+	* vm_core.h (vm_env_new): added.
 
-	* ruby.c (usage): constified.
+Thu Jul 28 19:53:21 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* ruby.c (rubylib_mangled_path, rubylib_mangled_path2): return
-	  VALUE instead of a pointer to static buffer.
+	* vm_core.h: revisit the structure of frame, block and env.
+	  [Bug #12628]
 
-	* ruby.c (push_include_cygwin): fixed buffer overflow.
-	  [ruby-dev:31297]
+	  This patch introduce many changes.
 
-	* ruby.c (ruby_init_loadpath): not convert built-in paths.
+	  * Introduce concept of "Block Handler (BH)" to represent
+	    passed blocks.
 
-Sun Jul 22 16:07:12 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  * move rb_control_frame_t::flag to ep[0] (as a special local
+	    variable). This flags represents not only frame type, but also
+	    env flags such as escaped.
 
-	* intern.h (is_ruby_native_thread): removed since declared as an int
-	  function in ruby.h already.
+	  * rename `rb_block_t` to `struct rb_block`.
 
-Sun Jul 22 14:33:40 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  * Make Proc, Binding and RubyVM::Env objects wb-protected.
 
-	* file.c (rb_file_s_rename): deleted code to get rid of a bug of
-	  old Cygwin.
+	  Check [Bug #12628] for more details.
 
-	* file.c (rb_file_truncate): added prototype of GetLastError()
-	  on cygwin.  [ruby-dev:31239]
+Thu Jul 28 15:05:12 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* intern.h (is_ruby_native_thread): prototype.
+	* include/ruby/ruby.h (ruby_fl_type): use __extension__ to get rid
+	  of pedantic warning against RUBY_FL_USER19.
+	  https://github.com/skylightio/skylight-ruby/issues/64
 
-	* missing/strftime.c (strftime): fix printf format and actual
-	  arguments.
+	* include/ruby/ruby.h (rb_mul_size_overflow): ditto for use of
+	  int128.
 
-	* ext/Win32API/Win32API.c (Win32API_initialize): ditto.
+Wed Jul 27 10:32:59 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/tk/tcltklib.c (ip_finalize): ditto.
+	* enc/windows_1253.c: Remove dead code found by Coverity Scan.
 
-	* ext/dl/ptr.c (rb_dlptr_inspect): ditto.  [ruby-dev:31268]
+Tue Jul 26 22:43:36 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/dl/sym.c (rb_dlsym_inspect): ditto.
+	* gc.c (run_finalizer): make saved running finalizer state
+	  volatile to ensure not to be clobbered by longjmp.
 
-	* ext/socket/getnameinfo.c: include stdio.h always.
+Tue Jul 26 19:26:00 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/win32ole/win32ole.c (ole_hresult2msg, folevariable_name,
-	  folevariable_ole_type, folevariable_ole_type_detail,
-	  folevariable_value, folemethod_visible): missing return value.
+	* vm_insnhelper.c: introduce rb_vm_pop_frame() and use it
+	  instead of setting rb_thread_t::cfp directly.
 
-Sat Jul 21 17:48:26 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_insnhelper.c (vm_pop_frame): return the result of
+	  finish frame or not.
 
-	* lib/mkmf.rb (create_makefile): make OBJS depend on RUBY_EXTCONF_H
-	  only if extconf.h is created.
+Tue Jul 26 19:06:39 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* bcc32/{Makefile.sub,configure.bat,setup.mak: configure_args
-	  support.
+	* gc.c (rb_raw_obj_info): support to show Proc obj.
 
-	* bcc32/setup.mak: check runtime version.
+Tue Jul 26 18:55:55 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* win32/win32.c (rb_w32_open_osfhandle): prototype has changed
-	  in bcc 5.82.
+	* gc.c (gc_mark): add `inline' explicitly.
+	  I expected to inline this function implicitly at the loop
+	  (ex: marking T_ARRAY objects) but sometimes it remains as
+	  normal call.
 
-	* {win32,wince,bcc32}/setup.mak (-version-): no RUBY_EXTERN magic.
+Tue Jul 26 16:33:16 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* win32/resource.rb: include patchlevel number.
+	* enc/windows_1257.c, test/ruby/enc/test_case_comprehensive.rb:
+	  Implement non-ASCII case conversion for Windows-1257, by Sho Koike.
 
-Sat Jul 21 12:06:48 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Jul 26 16:19:41 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* lib/mkmf.rb (init_mkmf): should remove mkmf.log too.
+	* enc/windows_1250.c, test/ruby/enc/test_case_comprehensive.rb:
+	  Implement non-ASCII case conversion for Windows-1250, by Sho Koike.
 
-Sat Jul 21 01:53:17 2007  Tadayoshi Funaba  <tadf@dotrb.org>
+	* ChangeLog: Fixed order of previous two entries.
 
-	* lib/date/format.rb (Date._parse): completes calendar week based year.
+Tue Jul 26 15:54:17 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* lib/date/format.rb (Date._parse): detects year of ordinal date in
-	  extended format.
+	* enc/windows_1253.c, test/ruby/enc/test_case_comprehensive.rb:
+	  Implement non-ASCII case conversion for Windows-1253, by Takumi Koyama.
 
-Fri Jul 20 15:22:51 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Jul 26 15:30:37 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/openssl/ossl_config.c (ossl_config_set_section): do not
-	  initialize aggregations with dynamic values.  [ruby-talk:259306]
+	* enc/windows_1251.c, test/ruby/enc/test_case_comprehensive.rb:
+	  Implement non-ASCII case conversion for Windows-1251, by Shunsuke Sato.
 
-Thu Jul 19 19:24:14 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Jul 26 13:04:59 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* eval.c (get_backtrace): check the result more.
-	  [ruby-dev:31261] [ruby-bugs-12398]
+	* test/ruby/enc/test_case_comprehensive.rb: Add explicit skip test for
+	  availability of Unicode data files.
 
-Thu Jul 19 14:38:45 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Jul 25 21:33:13 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* bignum.c (rb_big_lshift, rb_big_rshift): separated functions
-	  to get rid of infinite recursion.  fixed calculation in edge
-	  cases.  [ruby-dev:31244]
+	* range.c (check_step_domain): check step argument domain by <=>
+	  method, instead of < and >.
 
-	* numeric.c (rb_fix_lshift, rb_fix_rshift): ditto.
+Mon Jul 25 21:11:32 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-Wed Jul 18 16:57:41 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* doc/maintainers.rdoc: fix filenames.
 
-	* bignum.c (rb_big_pow): refine overflow check.  [ruby-dev:31242]
+Mon Jul 25 16:59:00 2016  Koichi Sasada  <ko1@atdot.net>
 
-Wed Jul 18 08:47:09 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* debug.c (ruby_debug_printf): use rb_raw_obj_info()
+	  instead of rb_inspect() because it is more robust way
+	  to see object internal.
 
-	* time.c (time_succ): Time#succ should return a time object in the
-	  same timezone mode to the original.  [ruby-talk:260256]
+Sun Jul 24 16:33:13 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Tue Jul 17 00:50:53 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* regenc.h/c, include/ruby/oniguruma.h, enc/ascii.c, big5.c, cp949.c,
+	  emacs_mule.c, euc_jp.c, euc_kr.c, euc_tw.c, gb18030.c, gbk.c,
+	  iso_8859_1|2|3|4|5|6|7|8|9|10|11|13|14|15|16.c, koi8_r.c, koi8_u.c,
+	  shift_jis.c, unicode.c, us_ascii.c, utf_16|32be|le.c, utf_8.c,
+	  windows_1250|51|52|53|54|57.c, windows_31j.c, unicode.c:
+	  Remove conditional compilation macro ONIG_CASE_MAPPING. [Feature #12386].
 
-	* numeric.c (fix_pow): integer power calculation: 0**n => 0,
-	  1**n => 1, -1**n => 1 (n: even) / -1 (n: odd).
+Sun Jul 24 12:53:42 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* test/ruby/test_fixnum.rb (TestFixnum::test_pow): update test
-	  suite.  pow(-3, 2^64) gives NaN when pow(3, 2^64) gives Inf.
+	* doc/maintainers.rdoc: xmlrpc is bundled gem from Ruby 2.4.
 
-Mon Jul 16 23:07:51 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Sun Jul 24 12:07:39 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* lib/base64.rb (Base64::b64encode): should not specify /o option
-	  for regular expression.  [ruby-dev:31221]
+	* doc/maintainers.rdoc: Update OpenSSL maintainer.
 
-Mon Jul 16 18:29:33 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Jul 23 22:43:41 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* string.c (rb_str_rindex_m): accept string-like object convertible
-	  with #to_str method, as well as rb_str_index_m.  [ruby-core:11692]
+	* internal.h (Check_Type): inline check for the object type.
 
-Mon Jul 16 05:45:53 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Jul 23 04:06:04 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* sprintf.c (rb_f_sprintf): more checks for format argument.
-	  [ruby-core:11569], [ruby-core:11570], [ruby-core:11571],
-	  [ruby-core:11573]
+	* include/ruby/ruby.h (RTEST, NIL_P): use RUBY prefixed name in
+	  macros.
 
-Mon Jul 16 00:26:10 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Jul 23 01:41:29 2016  Eric Wong  <e@80x24.org>
 
-	* bignum.c (rb_big_pow): removed invariant variable.  [ruby-dev:31236]
+	* lib/webrick/httpservlet/cgihandler.rb (do_GET): delete HTTP_PROXY
+	* test/webrick/test_cgi.rb (test_cgi_env): new test
+	* test/webrick/webrick.cgi (do_GET): new endpoint to dump env
+	  [ruby-core:76511] [Bug #12610]
 
-Sun Jul 15 23:59:57 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jul 22 19:55:20 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* bignum.c (rb_big_neg): SIGNED_VALUE isn't in 1.8.
+	* vm.c (vm_set_main_stack): remove unnecessary check.  toplevel
+	  binding must be initialized.  [Bug #12611] (N1)
 
-Sun Jul 15 22:24:49 2007  pegacorn  <subscriber.jp AT gmail.com>
+	* win32/win32.c (w32_symlink): fix return type.  [Bug #12611] (N3)
 
-	* ext/digest/digest.c (rb_digest_instance_update,
-	  rb_digest_instance_finish, rb_digest_instance_reset,
-	  rb_digest_instance_block_length): %s in rb_raise() expects char*.
-	  [ruby-dev:31222]
+	* string.c (rb_str_split_m): simplify the condition.
+	  [Bug #12611](N4)
 
-	* ext/openssl/ossl.h: include ossl_pkcs5.h.  [ruby-dev:31231]
+Fri Jul 22 17:13:37 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/openssl/ossl_pkcs5.h: new file for PKCS5.  [ruby-dev:31231]
+	* string.c (String#dump): Change escaping of non-ASCII characters in
+	  UTF-8 to use upper-case four-digit hexadecimal escapes without braces
+	  where possible [Feature #12419].
 
-	* ext/openssl/ossl_x509name.c (ossl_x509name_to_s): use ossl_raise()
-	  instead of rb_raise().  [ruby-dev:31222]
+	* test/ruby/test_string.rb (test_dump): Add tests for above.
 
-	* ext/sdbm/_sdbm.c: DOSISH platforms need io.h.  [ruby-dev:31232]
+Fri Jul 22 10:35:35 2016  Kouhei Sutou  <kou@cozmixng.org>
 
-	* ext/syck/syck.h: include stdlib.h for malloc() and free().
-	  [ruby-dev:31232]
+	* lib/rexml/attribute.rb (REXML::Attribute#to_string): Fix wrong
+	  entry reference name of double quote.
+	  [Bug #12609][ruby-core:76509]
+	  Patch by Joseph Marrero. Thanks!!!
 
-	* ext/syck/syck.h (syck_parser_set_input_type): prototype added.
-	  [ruby-dev:31231]
+Fri Jul 22 10:32:13 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* win32/win32.c: include mbstring.h for _mbspbrk().  [ruby-dev:31232]
+	* template/unicode_norm_gen.tmpl: Remove
+	  UnicodeNormalize::UNICODE_VERSION at origin [Feature #12546].
 
-	* win32.h (rb_w32_getcwd): prototype added.  [ruby-dev:31232]
+Fri Jul 22 09:23:51 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Sun Jul 15 21:07:43 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* LEGAL: Added entries for files under the USD license.
+	  [Bug #12598][ruby-core:76428][ci skip]
 
-	* bignum.c (bigtrunc): do not empty Bignum.  [ruby-dev:31229]
+Fri Jul 22 09:19:57 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Sun Jul 15 19:05:28 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* LEGAL: Added entry for `lib/rdoc/generator/template/darkfish/css/fonts.css`
+	  [Misc #12550][ruby-core:76255][ci skip]
 
-	* bignum.c (rb_cstr_to_inum): check leading non-digits.
-	  [ruby-core:11691]
+Fri Jul 22 06:28:32 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Jul 15 04:42:20 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* gc.c (run_finalizer): push and exec tag just once, instead of
+	  protecting for each finalizer.
 
-	* bignum.c (get2comp): do nothing for empty Bignum.  [ruby-dev:31225]
+	* gc.c (gc_start_internal, rb_gc_start): set finalizing flag
+	  whenever calling deferred finalizers not to recurse.
 
-Sat Jul 14 14:04:06 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Jul 21 22:26:40 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* enum.c (sort_by_cmp): check if reentered.  [ruby-dev:24291]
+	* missing/strl{cat,cpy}.c: Update latest upstream files.
+	  [Misc #12205][ruby-core:74487]
+	* LEGAL: Update license for missing/strl{cat,cpy}.c.
 
-Sat Jul 14 12:44:14 2007  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Thu Jul 21 21:53:30 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* test/openssl/test_pkcs7.rb: reverted the previous patch.  it should
-	  be as it was to check interface compatibility.  sorry for bothering
-	  with this.
+	* LEGAL: added file list with Public domain license.
+	  [ruby-core:76254][Bug #12549]
 
-Sat Jul 14 12:16:17 2007  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Wed Jul 20 17:44:07 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/openssl/test_pkcs7.rb: follow the library change.  applied a
-	  patch from <zn at mbf.nifty.com> [ruby-dev:31214].
-	  NOTE: r12496 imports the latest openssl libs from trunk to ruby_1_8
-	  though its's not ChangeLog-ed.  maintainer should aware that.
+	* enumerator.c (lazy_uniq): new method Enumerator::Lazy#uniq.
+	  [Feature #11090]
 
-Sat Jul 14 02:51:52 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* enum.c (enum_uniq): new method Enumerable#uniq.
+	  [Feature #11090]
 
-	* numeric.c (fix_pow): 0**2 should not raise floating point
-	  exception.  [ruby-dev:31216]
+Wed Jul 20 17:35:23 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Jul 14 02:25:48 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* hash.c (rb_hash_add_new_element): add new element or do nothing
+	  if it is contained already.
 
-	* numeric.c (int_pow): wrong overflow detection.  [ruby-dev:31213]
+	* array.c (ary_add_hash, ary_add_hash_by): use
+	  rb_hash_add_new_element.
 
-	* numeric.c (int_pow): wrong overflow detection.  [ruby-dev:31215]
+Tue Jul 19 18:21:17 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Fri Jul 13 16:10:00 2007  Tanaka Akira  <akr@fsij.org>
+	* lib/unicode_normalize/tables.rb: Remove
+	  UnicodeNormalize::UNICODE_VERSION (#12546).
 
-	* lib/open-uri.rb (URI::Generic#find_proxy): use ENV.to_hash to access
-	  http_proxy environment variable to avoid case insensitive
-	  environment search.
+Tue Jul 19 15:38:59 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Jul 13 15:02:15 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* variable.c (rb_local_constants_i): exclude private constants
+	  when excluding inherited constants too.  [Bug #12345]
 
-	* win32/win32.c (CreateChild): enclose command line except for
-	  command.com which can not handle quotes.  [ruby-talk:258939]
+Sun Jul 17 23:42:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-Fri Jul 13 10:10:46 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* numeric.c (num_finite_p, num_infinite_p): Add Numeric#finite? and
+	  Numeric#infinite?  [Feature #12039] [ruby-core:73618]
 
-	* lib/mkmf.rb (link_command, cc_command, cpp_command): do not expand
-	  ::CONFIG which is an alias of MAKEFILE_CONFIG.
+	* complex.c (rb_complex_finite_p): Add Complex#finite?
 
-Thu Jul 12 17:03:15 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* complex.c (rb_complex_infinite_p): Add Complex#infinite?
 
-	* struct.c (rb_struct_init_copy): disallow changing the size.
-	  [ruby-dev:31168]
+	* test/ruby/test_bignum.rb: Add test for Integer#finite? and
+	  Integer#infinite?
 
-Wed Jul 11 23:38:14 2007  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* test/ruby/test_fixnum.rb: ditto.
 
-	* random.c: documentation fix.  srand(0) initializes PRNG with '0',
-	  not with random_seed.
+	* test/ruby/test_rational.rb: Add test for Rational#finite? and
+	  Rational#infinite?
 
-Tue Jul 10 14:50:01 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/test_complex.rb: Add test for Complex#finite? and
+	  Complex#infinite?
 
-	* bcc32/{Makefile.sub,setup.mak}: remove surplus slash from srcdir.
+Sun Jul 17 20:59:24 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Jul  6 15:22:58 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* common.mk, enc/depend (casefold.h, name2ctype.h): move to
+	  unicode data directory per version.
 
-	* eval.c (rb_interrupt): suppress a gcc's officious warning.
+Sat Jul 16 06:26:00 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Jul  5 16:44:28 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* common.mk, enc/Makefile.in: moved timestamp files for
+	  directories under the specific directory, to get rid of match
+	  with files under the source directory.
 
-	* numeric.c (int_pow): fix previous nubu's commit.
+Fri Jul 15 22:05:13 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* test/ruby/test_fixnum.rb: new test.
+	* string.c (str_buf_cat): Fix potential integer overflow of capa.
+	  In addition, termlen is used instead of +1.
 
-Thu Jul  5 15:56:06 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jul 15 21:30:38 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* numeric.c (int_pow): even number multiplication never be negative.
+	* string.c (str_buf_cat): Fix capa size for embed string.
+	  Fix bug in r55547. [Bug #12536]
 
-Mon Jul  2 14:34:43 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jul 15 18:13:15 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* sprintf.c (rb_f_sprintf): sign bit extension should not be done
-	  if FPLUS flag is specified.  [ruby-list:39224]
+	* gems/bundled_gems: update latest gems.
 
-Sat Jun 30 16:05:41 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Fri Jul 15 17:08:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* array.c (rb_ary_initialize): should call rb_ary_modify() first.
-	  [ruby-core:11562]
+	* util.c (ruby_strtod): do not underflow only by preceding zeros,
+	  which may be canceled out by the exponent.
+	  http://twitter.com/kazuho/status/753829998767714305
 
-Sat Jun 30 00:17:00 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jul 15 09:53:48 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* parse.y (yylex): return non-valid token for an invalid
-	  instance/class variable name.  a patch from Yusuke ENDOH
-	  <mame AT tsg.ne.jp>.  [ruby-dev:31095]
+	* enc/unicode/case-folding.rb, tool/enc-unicode.rb: check if
+	  Unicode versions are consistent with each other.
 
-Fri Jun 29 11:23:09 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jul 15 08:25:15 2016  Jeremy Evans <code@jeremyevans.net>
 
-	* parse.y (dsym): return non-null NODE even if yyerror().  based on a
-	  patch from Yusuke ENDOH <mame AT tsg.ne.jp>.  [ruby-dev:31085]
+	* string.c (STR_BUF_MIN_SIZE): reduce from 128 to 127
+	  [ruby-core:76371] [Feature #12025]
+	* string.c (rb_str_buf_new): adjust for above reduction
 
-Tue Jun 26 16:35:21 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Jul 14 17:26:00 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* process.c (ruby_setreuid, ruby_setregid): rename to get rid of name
-	  clash.
+	* Makefile.in (enc/unicode/name2ctype.h): remove stale recipe,
+	  which did not support Unicode age properties.
 
-	* process.c (proc_exec_v, rb_proc_exec): preserve errno.
+	* common.mk (enc/unicode/name2ctype.h): update by --header option
+	  of tool/enc-unicode.rb.  enc/unicode/name2ctype.kwd file has not
+	  been used.
 
-Sat Jun 23 00:37:46 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* common.mk (enc/unicode/name2ctype.kwd): rule to create from
+	  Unicode data files, used only when the target does not exist.
 
-	* hash.c (rb_hash_select): remove unnecessary varargs for
-	  rb_hash_select.  a patch from Daniel Berger
-	  <Daniel.Berger at qwest.com>.   [ruby-core:11527]
+Thu Jul 14 13:10:54 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* hash.c: ditto.
+	* ext/json/lib/json/ext: remove stale directory.  bundled
+	  extension libraries are placed under the directory for each
+	  architectures, but not mixed with plain text script libraries.
 
-Mon Jun 18 08:47:54 2007  Technorama Ltd.  <oss-ruby@technorama.net>
+Thu Jul 14 12:48:47 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/openssl/{extconf.rb,ossl_ssl_session.c}:
-	  Fix ruby-Bugs-11513.
+	* ext/json/**/*.rb: merge original files from upstream repository.
+	  It only fixes styles of frozen string literal.
 
-	* ext/openssl/ossl_pkey_ec.c
-	  New methods EC::Point.[eql,make_affine!,invert!,on_curve?,infinity?]
-	  By default output the same key form as the openssl command.
+Wed Jul 13 22:23:03 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/openssl/ossl_rand.c
-	  New method Random.status?
+	* test/json/json_common_interface_test.rb: use assert_raise instead of
+	  assert_raises.
 
-Mon Jun 18 13:54:36 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jul 13 22:14:23 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* eval.c (ruby_cleanup): return EXIT_FAILURE if any exceptions occured
-	  in at_exit blocks.  [ruby-core:11263]
+	* test/lib/test/unit.rb: added test files with `_test` suffix for json
+	  upstream.
+	* test/json: merge original test files from json upstream.
 
-Mon Jun 18 01:14:10 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jul 13 18:09:42 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* variable.c (rb_path2class): get rid of dangling pointer caused by
-	  optimized out value.
+	* enc/iso_8859_9.c, test/ruby/enc/test_case_comprehensive.rb:
+	  Implement non-ASCII case conversion for ISO-8859-9, by Kazuki Iijima.
 
-	* variable.c (rb_global_entry, rb_f_untrace_var, rb_alias_variable,
-	  rb_generic_ivar_table, generic_ivar_get, generic_ivar_set,
-	  generic_ivar_defined, generic_ivar_remove, rb_mark_generic_ivar,
-	  rb_free_generic_ivar, rb_copy_generic_ivar,
-	  rb_obj_instance_variables): suppress warnings.
+	* enc/iso_8859_9.c: Exclude dotless i/I with dot from case-insensitive
+	  matching because they are not a case pair.
 
-Fri Jun 15 22:33:29 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/enc/test_iso_8859.rb: Make test coverage for ISO-8859-9
+	  a bit more complete.
 
-	* common.mk (realclean): separate local and ext.
+Wed Jul 13 17:21:24 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/extmk.rb: not remove unrelated directories.
+	* enc/windows_1252.c, test/ruby/enc/test_case_comprehensive.rb:
+	  Implement non-ASCII case conversion for Windows-1252, by Serina Tai.
 
-Fri Jun 15 17:01:20 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* test/ruby/enc/test_case_comprehensive.rb: Fix order of encodings.
 
-	* ext/dl/lib/dl/win32.rb: seems that dl doesn't accept void argument.
-	  fixed [ruby-bugs:PR#5489].
+Wed Jul 13 16:19:14 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Thu Jun 14 17:09:48 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* enc/iso_8859_7.c, test/ruby/enc/test_case_comprehensive.rb:
+	  Implement non-ASCII case conversion for ISO-8859-7, by Kosuke Kurihara.
 
-	* lib/rdoc/parsers/parse_c.rb (RDoc::C_Parser): handle more
-	  extensions.  [ruby-dev:30972]
+	* test/ruby/enc/test_case_comprehensive.rb: Fix order of encodings.
 
-Wed Jun 13 06:05:12 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jul 13 16:08:08 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* configure.in (darwin): prohibit loading extension libraries to
-	  miniruby.
+	* gc.c (gc_mark_roots): should mark the VM object itself to mark
+	  singleton class of the VM object.
+	  Before this patch, we only set mark bit for the VM object and
+	  invoke mark function separately.
+	  [Bug #12583]
 
-Wed Jun 13 05:47:58 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/test_gc.rb: add a test.
 
-	* eval.c (rb_kill_thread): renamed in order to get rid of conflict
-	  with a BeOS system function.  [ruby-core:10830]
+Wed Jul 13 15:59:59 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Tue Jun 12 14:53:51 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* math.c (_USE_MATH_DEFINES): it must be set before including internal.h
+	  because internal.h includes ruby.h, ruby.h includes win32.h, and
+	  win32.h includes system's math.h.
+	  this change is to get rid of a compiler warning (redefinition of
+	  a macro) introduced at r55641.
 
-	* lib/mkmf.rb (Logging.quiet, Logging.message): added quiet flag and
-	  use it.  [ruby-core:10909]
+Wed Jul 13 15:19:03 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* lib/mkmf.rb (find_header): use header names in the message.
+	* enc/iso_8859_1.c, enc/iso_8859_4.c: Avoid setting modification flag if
+	  there is no modification.
 
-Sun Jun 10 13:47:36 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jul 13 14:40:04 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* test/ruby/test_beginendblock.rb (test_should_propagate_signaled):
-	  get rid of invoking shell.  [ruby-dev:30942]
+	* enc/iso_8859_5.c, test/ruby/enc/test_case_comprehensive.rb:
+	  Implement non-ASCII case conversion for ISO-8859-5, by Masaru Onodera.
 
-Thu Jun  7 19:02:48 2007  Tanaka Akira  <akr@fsij.org>
+	* test/ruby/enc/test_case_comprehensive.rb: Fix order of encodings.
 
-	* lib/pp.rb: call original "method" method instead of redefined one.
+Wed Jul 13 14:28:33 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Mon Jun  4 11:11:12 2007  Shugo Maeda  <shugo@ruby-lang.org>
+	* math.c (rb_math_sqrt): r55646 must use f_signbit.
 
-	* lib/net/imap.rb (ResponseParser#next_token): fixed
-	  error message. (backported from HEAD)
+Wed Jul 13 14:22:50 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/net/imap.rb (ResponseParser#parse_error): fixed
-	  the condition not to refer @token.symbol unexpectedly.
-	  Thanks, Dick Monahan. (backported from HEAD)
+	* iseq.c (Init_ISeq): undef ISeq.translate and ISeq.load_iseq
+	  to prevent calling super classes' methods.
 
-Thu May 31 17:27:53 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  Without this patch, you can write workaround like:
 
-	* lib/benchmark.rb (Benchmark::Job::item): avoid modifying the
-	  argument unintentionally.  [ruby-talk:253676]
+	    class << RubyVM::InstructionSequence
+	      def translate; end
+	      undef translate
+	    end
 
-Thu May 31 02:12:32 2007  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+	* test/ruby/test_iseq.rb: add a test.
 
-	* lib/rinda/tuplespace.rb (Rinda::TupleBag): create index on tuple bag
-	  by first column.
+Wed Jul 13 14:16:03 2016  Koichi Sasada  <ko1@atdot.net>
 
-Wed May 30 13:27:40 2007  Shugo Maeda  <shugo@ruby-lang.org>
+	* vm_method.c (method_entry_get_without_cache): check
+	  undefined method even if ruby_running is FALSE.
 
-	* lib/net/ftp.rb (Net::FTP#transfercmd): skip 2XX
-	  responses for some FTP servers. (backported from HEAD)
+	  We haven't call "undef"ed methods before ruby_running.
+	  So that this issue does not make troubles.
 
-Wed May 30 05:17:55 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jul 13 14:15:22 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* eval.c (rb_eval): get rid of SEGV at ZSUPER in a block
-	  [ruby-dev:30836]
+	* enc/windows_1254.c: Adjust variable/macro names.
 
-Wed May 30 04:29:43 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jul 13 13:19:12 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* eval.c (thread_timer): timer thread should not receive any
-	  signals.  submitted by Sylvain Joyeux.  [ruby-core:08546]
+	* enc/iso_8859_9.c, enc/windows_1254.c: Split Windows-1254 from
+	  ISO-8859-9 to be able to implement different case conversions.
 
-Wed May 30 04:18:37 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jul 13 13:08:30 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* eval.c (rb_eval_cmd): just return if no exceptions.
-	  [ruby-dev:30820]
+	* enc/iso_8859_7.c, enc/windows_1253.c: Split Windows-1253 from
+	  ISO-8859-7 to be able to implement different case conversions.
 
-Tue May 29 11:01:06 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jul 13 10:50:12 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* win32/win32.c (rb_w32_opendir): store attributes of the second
-	  entries or later too.
+	* enc/iso_8859_13.c, test/ruby/enc/test_case_comprehensive.rb:
+	  Implement non-ASCII case conversion for ISO-8859-13, by Kanon Shindo.
 
-	* win32/win32.c (rb_w32_opendir, rb_w32_readdir): eliminate magic
-	  numbers.
+Wed Jul 13 10:31:39 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Mon May 28 02:54:05 2007  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+	* enc/iso_8859_13.c, enc/windows_1257.c: Split Windows-1257 from
+	  ISO-8859-13 to be able to implement different case conversions.
 
-	* lib/rinda/tuplespace.rb (Rinda::TupleBag#delete): use rindex and
-	  delete_at instead of delete for little improvement.
+Wed Jul 13 09:02:30 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Sat May 26 00:05:22 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* enc/iso_8859_3.c, test/ruby/enc/test_case_comprehensive.rb:
+	  Implement non-ASCII case conversion for ISO-8859-3, by Takuya Miyamoto.
 
-	* test/ruby/test_beginendblock.rb (test_should_propagate_signaled):
-	  skip tests for exitstatus and termsig on the platforms where
-	  signals not supported.
+	* test/ruby/enc/test_case_comprehensive.rb: Extend special treatment
+	  for Turkic.
 
-Wed May 23 06:51:46 2007  URABE Shyouhei  <shyouhei@ruby-lang.org>
+	* enc/iso_8859_3.c: Exclude dotless i/I with dot from case-insensitive
+	  matching because they are not a case pair.
 
-	* lib/cgi.rb (CGI#[]): get rid of exceptions being raised.
-	  [ruby-dev:30740], Thanks Kentaro KAWAMOTO.
+Wed Jul 13 08:40:21 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Wed May 23 05:49:49 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/enc/test_iso_8859.rb: Exclude dotless i/I with dot from
+	  case-insensitive matching because they are not a case pair.
 
-	* ext/extmk.rb, ext/purelib.rb, lib/mkmf.rb, runruby.rb: clear default
-	  load path to get rid of load pre-installed extensions/libraries.
-	  [ruby-core:11017]
+Tue Jul 12 23:13:43 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat May 19 10:29:18 2007  Tadayoshi Funaba  <tadf@dotrb.org>
+	* math.c (rb_math_sqrt): [EXPERIMENTAL] move Complex sqrt support
+	  from mathn.rb.
 
-	* lib/date/format.rb (Date._parse): detects some OFX dates
-	  (Of course not fully).
+Tue Jul 12 01:25:09 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Fri May 18 23:07:33 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* configure.in, lib/mkmf.rb, win32/Makefile.sub (CSRCFLAG): make the
+	  compiler option replacable in Makefile.
 
-	* array.c (rb_ary_first): call rb_ary_subseq() instead of pushing
-	  values by itself.  [ruby-talk:252062]
+	* win32/Makefile.sub (OUTFLAG, COUTFLAG): ditto.
 
-	* array.c (rb_ary_first): add negative length check.
+	* win32/Makeile.sub, win32/setup.mak (CC): should not append `-nologo`
+	  option forcely.
 
-Fri May 18 17:10:31 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Jul 11 18:05:40 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* win32/win32.c (move_to_next_entry): loc also must move forward.
-	  [ruby-talk:251987]
+	* enc/iso_8859_1.c: Moved test for lowercase characters without
+	  uppercase equivalent.
 
-Fri May 18 03:02:40 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Jul 11 17:49:25 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* win32/mkexports.rb: preserve prefixed underscores for WINAPI
-	  symbols.
+	* enc/iso_8859_4.c, enc/iso_8859_10.c, enc/iso_8859_14.c,
+	  enc/iso_8859_15.c, enc/iso_8859_16.c: Replace case-by-case code with
+	  lookup in ENC_ISO_8859_xx_TO_LOWER_CASE table.
 
-	* wince/mkconfig_wce.rb, wince/mkexports.rb: obsolete.
+Mon Jul 11 16:00:56 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu May 17 17:03:11 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/stringio/stringio.c (strio_each, strio_readlines): convert
+	  arguments just once before reading, instead of conversions for
+	  each lines, as r55603.
 
-	* misc/ruby-style.el (ruby-style-label-indent): for yacc rules.
+Sun Jul 10 19:53:41 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Tue May 15 14:54:07 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* enc/iso_8859_10.c, test/ruby/enc/test_case_comprehensive.rb:
+	  Implement non-ASCII case conversion for ISO-8859-10, by Toya Hosokawa.
 
-	* win32/win32.c (init_stdhandle): stderr should be without buffering,
-	  but mswin32 use buffering when stderr is not connected to tty.
+Sun Jul 10 19:33:47 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Mon May 14 13:28:03 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/enc/test_case_comprehensive.rb: Changed testing logic to
+	  catch unintended modifications of characters that do not have a case
+	  equivalent in the respective encoding.
+	* enc/iso_8859_1.c, enc/iso_8859_15.c: Fixed unintended modifications of
+	  micro sign and y with diaeresis.
 
-	* ext/thread/thread.c (wait_list): supress a warning.
+Sun Jul 10 17:05:36 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Thu May 10 15:21:51 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* enc/iso_8859_4.c, test/ruby/enc/test_case_comprehensive.rb:
+	  Implement non-ASCII case conversion for ISO-8859-4, by Kotaro Yoshida.
 
-	* ext/iconv/iconv.c (iconv_s_conv): rdoc fix.
+Sun Jul 10 16:17:47 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Thu May 10 10:14:14 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/enc/test_case_comprehensive.rb: Fixed a comment
+	  (message belongs to last commit). [ci skip]
 
-	* eval.c (rb_thread_priority): rdoc fix; the initial value is
-	  inherited from the creating thread.  [ruby-core:10607]
+Sun Jul 10 14:27:25 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed May  9 12:28:57 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* util.c (ruby_dtoa): [EXPERIMENTAL] adjust the case that the
+	  Float value is close to the exact but unrepresentable middle
+	  value of two values in the given precision, as r55604.
 
-	* bignum.c (Init_Bignum), numeric.c (Init_Numeric): added fdiv as
-	  aliases of quo.  [ruby-dev:30771]
+Sun Jul 10 08:57:20 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Wed May  9 11:55:15 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* thread.c: Fixed implicit conversion error with Apple clang-800.0.31
 
-	* bignum.c (rb_big_quo): now calculate in integer.  [ruby-dev:30753]
+Sat Jul  9 12:43:09 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-Wed May  9 11:51:06 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/getoptlong.rb: use false instead of FALSE.
 
-	* bignum.c (rb_big_pow): reduce multiplying for even number.
+Fri Jul  8 21:49:28 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* bignum.c (rb_big_pow): truncate all zero BDIGITs. [ruby-dev:30733]
+	* thread.c (rb_wait_for_single_fd): Clean up fds.revents every time
+	  before calling ppoll(2). [Bug #12575] [ruby-dev:49725]
 
-	* bignum.c (rb_big_pow): improvement by calculating from MSB and using
-	  factorization.  <http://yowaken.dip.jp/tdiary/20070426.html#p01>
+Fri Jul  8 14:16:48 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* numeric.c (int_pow): calculate power in Fixnum as possible.
-	  [ruby-dev:30726]
+	* vm_args.c (vm_caller_setup_arg_block): call rb_sym_to_proc()
+	  directly to reduce method dispatch overhead.
 
-Tue May  8 23:42:51 2007  Tadayoshi Funaba  <tadf@dotrb.org>
+Fri Jul  8 08:43:31 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* lib/date/format.rb (Date._parse): revised treatment of
-	  hyphened/separatorless dates.
+	* io.c (rb_io_s_read): add description of pipes to the documentation
+	  of IO.read.
 
-	* lib/date/format.rb: some trivial adjustments.
+Fri Jul  8 03:54:22 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Tue May  8 20:25:05 2007  Tadayoshi Funaba  <tadf@dotrb.org>
+	* vm_args.c (setup_parameters_complex): don't raise ArgumentError
+	  if an array is given for instance_exec with optional argument.
+	  [ruby-core:76300] [Bug #12568]
+	  https://github.com/rails/rails/pull/25699
 
-	* lib/date/format.rb: reverted.
+Fri Jul  8 00:47:36 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Sat May  5 16:26:33 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_eval.c (yield_under): change prototype to get argc/argv.
 
-	* lib/date/format.rb (Format::Bag#method_missing): get rid of
-	  modifying orginal argument.  [ruby-core:11090]
+	* vm_eval.c (specific_eval): change for above.
 
-Mon Apr 30 01:17:51 2007  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+	* vm_eval.c (rb_obj_instance_exec): avoid object allocation.
 
-	* lib/rinda/tuplespace.rb (TupleSpace#create_entry, TupleBag#push,
-	  delete): extract method, and rename parameter.
+	* vm_eval.c (rb_mod_module_exec): ditto.
 
-Fri Apr 27 02:00:17 2007  Ryan Davis  <ryand-ruby@zenspider.com>
+Thu Jul  7 20:08:37 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* signal.c: Fixed backwards compatibility for 'raise Interrupt'.
+	* vm_args.c (vm_caller_setup_arg_block): disable symbol block
+	  argument optimization when tail call optimization is enabled,
+	  in order to avoid SEGV.  [ruby-core:76288] [Bug #12565]
 
-	* lib/yaml/tag.rb: Running rdoc over the 1.8.6 tree skips
-	  Module. Patch from James Britt
+Thu Jul  7 16:37:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Apr 26 13:54:51 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* numeric.c (flo_round): [EXPERIMENTAL] adjust the case that the
+	  receiver is close to the exact but unrepresentable middle value
+	  of two values in the given precision.
+	  http://d.hatena.ne.jp/hnw/20160702
 
-	* misc/ruby-style.el: new file.  C/C++ style for ruby source code.
+Thu Jul  7 16:31:07 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Apr 25 19:49:16 2007  Tanaka Akira  <akr@fsij.org>
+	* io.c (rb_io_s_foreach, rb_io_s_readlines): convert arguments
+	  just once before reading, instead of conversions for each lines.
 
-	* ext/socket/socket.c (unix_send_io, unix_recv_io): use CMSG_DATA to
-	  align file descriptor appropriately.
+Wed Jul  6 19:54:17 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Tue Apr 24 09:33:57 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* enc/iso_8859_14.c, test/ruby/enc/test_case_comprehensive.rb:
+	  Implement non-ASCII case conversion for ISO-8859-14, by Yutaro Tada.
 
-	* dir.c (do_stat, do_lstat, do_opendir): should not warn ENOTDIR.
-	  [ruby-talk:248288]
+Wed Jul  6 19:24:48 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Mon Apr 23 22:14:42 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* enc/iso_8859_1.c, enc/iso_8859_15.c, enc/iso_8859_16.c:
+	  Align indenting to onigmo convention.
 
-	* ext/extmk.rb ($ruby): add extout directory to include path.
-	  [ruby-core:11003]
+Wed Jul  6 18:59:13 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* lib/mkmf.rb (libpathflag): not to append RPATHFLAG to current
-	  directory.
+	* enc/iso_8859_15.c, test/ruby/enc/test_case_comprehensive.rb:
+	  Implement non-ASCII case conversion for ISO-8859-15, by Maho Harada.
 
-	* lib/mkmf.rb (init_mkmf): add current directory to default
-	  library path with highest priority.  [ruby-core:10960]
+Wed Jul  6 18:34:21 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* lib/mkmf.rb (LINK_SO): LIBPATH to be placed before DLDFLAGS.
+	* enc/iso_8859_16.c, test/ruby/enc/test_case_comprehensive.rb:
+	  Implement non-ASCII case conversion for ISO-8859-16, by Satoshi Kayama.
 
-Fri Apr 20 16:05:22 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jul  6 14:44:56 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* configure.in (LIBPATHFLAG, RPATHFLAG): no needs to be quoted,
-	  it is done by libpathflag in mkmf.rb.
+	* lib/mkmf.rb (create_makefile): store $headers in LOCAL_HDRS for
+	  depend files.
 
-Fri Apr 20 12:27:04 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/digest/digest_conf.rb (digest_conf): add implementation
+	  specific headers to $header.
 
-	* lib/optparse.rb: fix to override conv proc.
+	* ext/digest/{md5,rmd160,sha1,sha2}/depend: add LOCAL_HDRS to the
+	  dependencies.
 
-Fri Apr 20 12:17:05 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jul  6 08:59:35 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* eval.c (ruby_cleanup): inversed the order of errinfos.
+	* lib/net/http/generic_request.rb (write_header): A Request-Line must
+	  not contain CR or LF.
 
-Thu Apr 19 14:53:32 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jul  6 07:11:27 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* lib/monitor.rb (ConditionVariable#wait, mon_enter, mon_exit_for_cond):
-	  ensures Thread.critical to be false.  [ruby-talk:248300]
+	* lib/net/ftp.rb (putline): raise an ArgumentError when
+	  CR or LF is included in a line.
 
-Wed Apr 18 10:41:21 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Jul  5 20:49:30 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* util.c (ruby_strtod): exponent is radix 10.  [ruby-talk:248272]
+	* ext/json/*, test/json/*: Update json-2.0.1.
+	  Changes of 2.0.0: https://github.com/flori/json/blob/f679ebd0c69a94e3e70a897ac9a229f5779c2ee1/CHANGES.md#2015-09-11-200
+	  Changes of 2.0.1: https://github.com/flori/json/blob/f679ebd0c69a94e3e70a897ac9a229f5779c2ee1/CHANGES.md#2016-07-01-201
+	  [Feature #12542][ruby-dev:49706][fix GH-1395]
 
-Wed Apr 18 02:30:24 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Jul  5 19:39:49 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* configure.in (LDFLAGS): prepend -L. instead appending it to
-	  XLDFLAGS.  [ruby-core:10933]
+	* string.c (rb_str_change_terminator_length): New function to change
+	  termlen and resize heap for the terminator. This is split from
+	  rb_str_fill_terminator (str_fill_term) because filling terminator
+	  and changing terminator length are different things. [Bug #12536]
 
-	* configure.in (Makefile): remove $U for automake from MISSING.
-	  [ruby-talk:248171]
+	* internal.h: declaration for rb_str_change_terminator_length.
 
-Tue Apr 17 16:46:46 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* string.c (str_fill_term): Simplify only to zero-fill the terminator.
+	  For non-shared strings, it assumes that (capa + termlen) bytes of
+	  heap is allocated. This partially reverts r55557.
 
-	* eval.c (rb_yield_0): should not clear state on TAG_NEXT when
-	  it's invoked from within lambda body.  [ruby-talk:248136]
+	* encoding.c (rb_enc_associate_index): rb_str_change_terminator_length
+	  is used, and it should be called whenever the termlen is changed.
 
-	* eval.c (proc_invoke): handle TAG_NEXT which would be caused by
-	  next in the lambda body as well.
+	* string.c (str_capacity): New static function to return capacity
+	  of a string with the given termlen, because the termlen may
+	  sometimes be different from TERM_LEN(str) especially during
+	  changing termlen or filling terminator with specific termlen.
 
-Mon Apr 16 22:56:01 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* string.c (rb_str_capacity): Use str_capacity.
 
-	* ext/pty/expect_sample.rb: avoid symbolic link representation for
-	  expect.  a patch from Kazuhiro NISHIYAMA <zn at mbf.nifty.com>.
-	  [ruby-dev:30714]
+Tue Jul  5 11:07:14 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Mon Apr 16 22:51:11 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* pack.c (pack_pack): use union instead of bare variable to ease
+	  optimizations and avoid assigning x87 floating point number.
+	  [ruby-core:74496] [Bug #12209]
 
-	* sample: replace TRUE, FALSE with true, false respectively.
-	  a patch from Kazuhiro NISHIYAMA <zn at mbf.nifty.com>.
-	  [ruby-dev:30713]
+	* pack.c (pack_unpack): ditto.
 
-Mon Apr 16 17:08:02 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Jul  4 13:56:34 2016  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* process.c: define sig_t if not exist.
+	  at least Solaris 10 and 11 doesn't have sig_t.
+
+Mon Jul  4 13:08:48 2016  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* random.c (random_ulong_limited): avoid left shift count >= width of
+	  type on 32bit environment.
+
+Sun Jul  3 18:51:42 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
+
+	* test/ruby/enc/test_case_comprehensive.rb, test_regex_casefold.rb,
+	  test/test_unicode_normalize.rb: Replace UNICODE_VERSION from
+	  UnicodeNormalize with RbConfig::CONFIG['UNICODE_VERSION'] from
+	  feature 12460.
+
+Sun Jul  3 06:04:09 2016  Eric Wong  <e@80x24.org>
+
+	* process.c (disable_child_handler_fork_child): simplify
+	  [ruby-core:75781] [Misc #12439]
+
+Sun Jul  3 05:25:46 2016  Eric Wong  <e@80x24.org>
+
+	* tool/asm_parse.rb: add description
+	* tool/change_maker.rb: ditto
+	* tool/downloader.rb: ditto
+	* tool/eval.rb: ditto
+	* tool/expand-config.rb: ditto
+	* tool/extlibs.rb: ditto
+	* tool/fake.rb: ditto
+	* tool/file2lastrev.rb: ditto
+	* tool/gem-unpack.rb: ditto
+	* tool/gen_dummy_probes.rb: ditto
+	* tool/gen_ruby_tapset.rb: ditto
+	* tool/generic_erb.rb: ditto
+	* tool/id2token.rb: ditto
+	* tool/ifchange: ditto
+	* tool/insns2vm.rb: ditto
+	* tool/instruction.rb: ditto
+	* tool/jisx0208.rb: ditto
+	* tool/merger.rb: ditto
+	* tool/mkrunnable.rb: ditto
+	* tool/node_name.rb: ditto
+	* tool/parse.rb: ditto
+	* tool/rbinstall.rb: ditto
+	* tool/rbuninstall.rb: ditto
+	* tool/rmdirs: ditto
+	* tool/runruby.rb: ditto
+	* tool/strip-rdoc.rb: ditto
+	* tool/vcs.rb: ditto
+	* tool/vtlh.rb: ditto
+	* tool/ytab.sed: ditto
+	* tool/enc-unicode.rb: fix typo
+	* tool/mk_call_iseq_optimized.rb: ditto
+	* tool/update-deps: ditto
+	  [ruby-core:76215] [Bug #12539]
+	  by Noah Gibbs <the.codefolio.guy@gmail.com>
 
-	* lib/optparse.rb (make_switch): do not clobber converter if pattern
-	  has no convert method.  reported by sheepman in [ruby-dev:30709].
+Sat Jul  2 18:04:24 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Mon Apr 16 16:49:32 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/uri/mailto.rb (initialize): RFC3986_Parser#split sets opaque
+	  only if the URI has path-rootless, not path-empty.
+	  [ruby-core:76055] [Bug #12498]
+	  patched by Chris Heisterkamp <cheister@squareup.com>
 
-	* ext/stringio/stringio.c (strio_seek): consistent behavior with
-	  IO#seek.  patch by sheepman in [ruby-dev:30710].
+Sat Jul  2 04:26:14 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Mon Apr 16 16:34:08 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* regcomp.c (noname_disable_map): don't optimize out group 0
+	  Ruby's Regexp doesn't allow normal numbered groups if the regexp
+	  has named groups. On such case it optimizes out related NT_ENCLOSE.
+	  But even on the case it can use \g<0>.
+	  This fix not to remove NT_ENCLOSE whose regnum is 0.
+	  [ruby-core:75828] [Bug #12454]
 
-	* parse.y (parser_yylex): should set command_start after block
-	  starting "do"s and braces.  [ruby-core:10916]
+Sat Jul  2 03:09:27 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-Sun Apr 15 09:19:57 2007  Tadayoshi Funaba  <tadf@dotrb.org>
+	* string.c: Partially reverts r55547 and r55555.
+	  ChangeLog about the reverted changes are also deleted in this file.
+	  [Bug #12536] [ruby-dev:49699] [ruby-dev:49702]
 
-	* lib/date/format.rb: added some zone names.
+Sat Jul  2 02:22:22 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* lib/date/format.rb (_parse): now interprets doted numerical
-	  dates as a big endian (except dd.mm.yyyy).
+	* string.c (str_fill_term): When termlen increases, re-allocation
+	  of memory for termlen should always be needed.
+	  In this fix, if possible, decrease capa instead of realloc.
+	  [Bug #12536] [ruby-dev:49699]
 
-Tue Apr 10 17:37:36 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
+Fri Jul  1 20:20:20 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* win32/win32.c (rb_w32_fclose, rb_w32_close): need to save errno
-	  before calling original fclose()/close().
+	* string.c: Specify termlen as far as possible.
+	  Additional fix for [Bug #12536] [ruby-dev:49699].
 
-Mon Apr  9 09:30:44 2007  Shugo Maeda  <shugo@ruby-lang.org>
+	* string.c (str_new_static): Specify termlen from the given encoding
+	  when creating a new String object is needed.
 
-	* lib/net/imap.rb (disconnect): call shutdown for
-	  SSLSocket. Thanks, Technorama Ltd.
+	* string.c (rb_tainted_str_new_with_enc): New function to create a
+	  tainted String object with the given encoding. This means that
+	  the termlen is correctly specified. Currently static function.
+	  The function name might be renamed to rb_tainted_enc_str_new
+	  or rb_enc_tainted_str_new.
 
-Thu Apr  5 00:42:48 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* string.c (rb_external_str_new_with_enc): Use encoding by using the
+	  above rb_tainted_str_new_with_enc().
 
-	* error.c (rb_notimplement), io.c (pipe_open): removed definite
-	  articles and UNIX manual section from messages.  [ruby-dev:30690]
+Fri Jul  1 19:38:57 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-Wed Apr  4 17:09:17 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/fiddle/test_pointer.rb (test_to_str, test_to_s, test_aref_aset):
+	  Attempt to use independent strings for destructive tests that
+	  directly modify values on memory by using Fiddle::Pointer.
+	  [Bug #12537] [ruby-dev:49700]
 
-	* io.c (pipe_open): refined the message of NotImplementedError.
-	  [ruby-dev:30685]
+Fri Jul  1 18:20:00 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Wed Apr  4 10:18:04 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* .gdbinit (rb_ps_thread): show the detail of cfunc in ruby level
+	  backtrace.
 
-	* io.c (pipe_open): raise NotImplementedError for command "-" on
-	  platforms where fork(2) is not available.  [ruby-dev:30681]
+Fri Jul  1 13:26:39 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-Tue Apr  3 15:45:41 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* string.c (rb_str_subseq, str_substr): When RSTRING_EMBED_LEN_MAX
+	  is used, TERM_LEN(str) should be considered with it because
+	  embedded strings are also processed by TERM_FILL.
+	  Additional fix for [Bug #12536] [ruby-dev:49699].
 
-	* ext/socket/socket.c (s_recv, s_recvfrom): some systems (such as
-	  windows) doesn't set fromlen if the socket is connection-oriented.
-	  reported by Bram Whillock in [ruby-core:10512] [ruby-Bugs#9061]
+Fri Jul  1 12:11:01 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Sat Mar 24 23:40:29 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* .gdbinit (rb_count_objects): added gdb version of count_objects().
 
-	* node.h (struct rb_thread.locals): explicit as struct.
-	  [ruby-core:10585]
+Fri Jul  1 04:32:52 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* eval.c, node.h (enum rb_thread_status, struct rb_thread,
-	  rb_curr_thread, rb_main_thread): prefixed.  [ruby-core:10586]
+	* .gdbinit (rb_ps_thread): show ruby level backtrace.
+	  Usually you can call `rb_ps` to show ruby level backtraces
+	  for all living threads.
+	  Note that it can call with core file like `gcore <pid>`
+	  and `gdb ruby core.<pid>`.
 
-	* file.c (chompdirsep): made an unprefixed name static.
+Thu Jun 30 19:15:13 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* io.c (io_fread): ditto.
+	* string.c: Fix memory corruptions when using UTF-16/32 strings.
+	  [Bug #12536] [ruby-dev:49699]
 
-Sat Mar 24 01:54:03 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* string.c (rb_str_new_with_class): Use TERM_LEN of the "obj".
 
-	* eval.c (ruby_cleanup): exit by SystemExit and SignalException in END
-	  block.  [ruby-core:10609]
+	* string.c (rb_str_plus, rb_str_justify): Use str_new0 which is aware
+	  of termlen.
 
-	* test/ruby/test_beginendblock.rb (test_should_propagate_exit_code):
-	  test for exit in END block.  [ruby-core:10760]
+	* string.c (str_shared_replace): Copy +termlen bytes instead of +1.
 
-	* test/ruby/test_beginendblock.rb (test_should_propagate_signaled):
-	  test for signal in END block.
+	* string.c (rb_str_times): termlen should not be included in capa.
 
-Thu Mar 22 23:13:17 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* string.c (RESIZE_CAPA_TERM): When using RSTRING_EMBED_LEN_MAX,
+	  termlen should be counted with it because embedded strings are
+	  also processed by TERM_FILL.
 
-	* eval.c (rb_provided): check for extension library if SOEXT is
-	  explicitly given.  [ruby-dev:30657]
+	* string.c (rb_str_capacity, str_shared_replace, str_buf_cat): ditto.
 
-Thu Mar 22 10:29:25 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* string.c (rb_str_drop_bytes, rb_str_setbyte, str_byte_substr): ditto.
 
-	* test/ruby/test_bignum.rb (test_to_s): add tests for Bignum#to_s.
+Wed Jun 29 22:24:37 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Wed Mar 21 17:04:30 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/psych/lib/psych_jars.rb: removed needless file required to JRuby.
 
-	* bignum.c (rb_big2str0): round up for the most significant digit.
-	  [ruby-core:10686]
+Wed Jun 29 22:21:38 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Wed Mar 21 07:21:24 2007  Akinori MUSHA  <knu@iDaemons.org>
+	* ext/openssl/ossl_ocsp.c: The "reuse" behavior of d2i_ functions does
+	  not work well with OpenSSL 1.0.0t. So avoid it.
 
-	* ext/thread/thread.c (remove_one): Preserve List invariants;
-	  submitted by: MenTaLguY <mental AT rydia.net>
-	  in [ruby-core:10598] and [ruby-bugs:PR#9388].
+Wed Jun 29 15:18:28 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Tue Mar 20 22:54:50 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* insns.def (opt_succ): optimize like r55515. (but this argument is
+	  constant)
 
-	* marshal.c (w_extended): erroneous check condition when dump
-	  method is defined.  [ruby-core:10646]
+Wed Jun 29 12:41:58 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-Tue Mar 20 15:37:24 2007  URABE Shyouhei  <shyouhei@ruby-lang.org>
+	* test/ruby/test_refinement.rb: skip
+	  test_prepend_after_refine_wb_miss on ARM or MIPS.
+	  [ruby-core:76031] [Bug #12491]
 
-	* distruby.rb: Add zip generation.
+Wed Jun 29 08:45:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Mar 20 11:28:41 2007  Akinori MUSHA  <knu@iDaemons.org>
+	* proc.c (passed_block): convert passed block symbol to proc.
+	  based on the patch by Daisuke Sato in [ruby-dev:49695].
+	  [Bug #12531]
 
-	* lib/matrix.rb (Matrix::inverse_from): adding partial pivoting to
-	  the Gauss-Jordan algorithm, making it stable.  a patch from
-	  Peter Vanbroekhoven.  [ruby-core:10641]
+Wed Jun 29 03:34:41 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Mon Mar 19 11:39:29 2007  Minero Aoki  <aamine@loveruby.net>
+	* bignum.c (rb_big2ulong): the old logic seems to try to avoid
+	  calculating `-(long)(num-1)-1` if `num` is not LONG_MIN. (Note that
+	  `-LONG_MIN` may be larger than LONG_MAX) But C compilers can
+	  optimize it into single NEG instruction.
+	  Therefore those two conditions can be single if-body.
 
-	* lib/net/protocol.rb (rbuf_read): extend buffer size for speed.
+	* bignum.c (rb_big2long): ditto.
 
-Sun Mar 18 04:23:52 2007  Akinori MUSHA  <knu@iDaemons.org>
+	* bignum.c (rb_big2ull): ditto.
 
-	* NEWS: Add a note about the new `date' library defining
-	  Time#to_date and Time#to_datetime private methods.
+	* bignum.c (rb_big2ll): ditto.
 
-	* NEWS: Inform that the old `thread' library is considered to be
-	  stable.
+Tue Jun 28 22:55:00 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* NEWS: Sort library entries in alphabetical order.
+	* lib/pstore.rb (PStore::CHECKSUM_ALGO): extract the algorithm for
+	  checksum, instead of qualified names for each times.
 
-Fri Mar 16 21:48:11 2007  Akinori MUSHA  <knu@iDaemons.org>
+Tue Jun 28 22:29:36 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/dl/dl.c (rb_ary2cary): Fix a bug in type validation;
-	  submitted by sheepman <sheepman AT sheepman.sakura.ne.jp>
-	  in [ruby-dev:30554].
+	* bootstraptest/runner.rb: do not use safe navigation operator.
+	  this runner may run on older ruby.  partially revert r53110
+	  (GH-1142 patched by @mlarraz).
 
-Fri Mar 16 18:28:06 2007  Akinori MUSHA  <knu@iDaemons.org>
+Tue Jun 28 22:09:09 2016  Akio Tajima <artonx@yahoo.co.jp>
 
-	* ext/etc/etc.c (etc_getgrgid): Fix a bug in Etc::getgrgid()
-	  always returning the (real) group entry of the running process;
-	  reported by: UEDA Hiroyuki <ueda AT netforest.ad.jp>
-	  in [ruby-dev:30586].
+	* lib/fileutils.rb: rescue Errno:EACCES for chown.
+	  [Bug #12520]
 
-Fri Mar 16 16:33:58 2007  Akinori MUSHA  <knu@iDaemons.org>
+Tue Jun 28 18:38:09 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* ext/thread/thread.c (unlock_mutex_inner): Make sure that the
-	  given mutex is actually owned by the caller; submitted by:
-	  Sylvain Joyeux <sylvain.joyeux AT m4x.org> in [ruby-core:10598].
+	* ext/digest/md5/md5ossl.h: Remove excess semicolons.
+	  Suppress warning on Solaris with Oracle Solaris Studio 12.
+	  [ruby-dev:49692] [Bug #12524]
 
-Fri Mar 16 16:21:35 2007  Akinori MUSHA  <knu@iDaemons.org>
+	* ext/digest/md5/md5cc.h: ditto.
+	* ext/digest/sha1/sha1cc.h: ditto.
+	* ext/digest/sha1/sha1ossl.h: ditto.
+	* ext/digest/sha2/sha2cc.h: ditto.
+	* ext/digest/sha2/sha2ossl.h: ditto.
+	* ext/openssl/ossl_pkey_rsa.c: ditto.
 
-	* ext/thread/thread.c (wait_condvar, lock_mutex): Fix a problem in
-	  ConditionVariable#wait that occurs when two threads that are
-	  trying to access the condition variable are also in concurrence
-	  for the given mutex; submitted by: Sylvain Joyeux
-	  <sylvain.joyeux AT m4x.org> and MenTaLguY <mental AT rydia.net>
-	  in [ruby-core:10598].
+Tue Jun 28 15:56:48 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Mar 16 16:17:27 2007  Akinori MUSHA  <knu@iDaemons.org>
+	* test/ruby/enc/test_case_comprehensive.rb: noting to test if
+	  Unicode data files are available.
+	  [ruby-core:76160] [Bug #12433]
 
-	* test/thread/test_thread.rb: Add a test script for the `thread'
-	  library.  This should result in failure as of now with
-	  ext/thread; submitted by: Sylvain Joyeux <sylvain.joyeux AT
-	  m4x.org> in [ruby-core:10598].
+	* test/test_unicode_normalize.rb: ditto.
 
-Wed Mar 14 12:30:00 2007  Shigeo Kobayashi  <shigeo@tinyforest.jp>
+Tue Jun 28 15:20:18 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/bigdecimal/bigdecimal.c: BigDecimal("-.31") is now
-	  treated as ("-0.31") not as ("0.31").
+	* lib/net/http.rb (Net::HTTP#proxy_uri): cache the case no proxy
+	  is used.
 
-Tue Mar 13 09:25:10 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Jun 28 09:56:29 2016  Stefan Schussler  <mail@stefanschuessler.de>
 
-	* common.mk (clear-installed-list): separated from install-prereq.
+	* object.c (rb_mod_eqq): [DOC] Fix typo in RDoc.  [Fix GH-1393]
 
-Tue Mar 13 06:38:43 2007  Akinori MUSHA  <knu@iDaemons.org>
+Tue Jun 28 02:41:32 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* NEWS: Reword and improve entries.
+	* insns.def (opt_plus): use `- 1` instead of `& (~1)` to allow
+	  compilers to use x86 LEA instruction (3 operand).
+	  Even if 3 operand LEA's latency is 3 cycle after SandyBridge,
+	  it reduces code size and can be faster because of super scalar.
 
-Tue Mar 13 06:03:46 2007  Akinori MUSHA  <knu@iDaemons.org>
+	* insns.def (opt_plus): calculate and use rb_int2big.
+	  On positive Fixnum overflow, `recv - 1 + obj` doesn't carry
+	  because recv's msb and obj's msb are 0, and resulted msb is 1.
+	  Therefore simply rshift and cast as signed long works fine.
+	  On negative Fixnum overflow, it will carry because both arguments'
+	  msb are 1, and resulted msb is also 1.
+	  In this case it needs to restore carried sign bit after rshift.
 
-	* stable version 1.8.6 released from the ruby_1_8_6 branch.
+Mon Jun 27 16:58:32 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Mar 13 03:24:07 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/fileutils.rb (FileUtils#install): accecpt symbolic mode, as
+	  well as chmod.
 
-	* runruby.rb: added --pure (turned on by default) and --debugger
+	* lib/fileutils.rb (FileUtils#install): add owner and group
 	  options.
 
-Tue Mar 13 02:50:28 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/cgi.rb (CGI::header): IIS >= 5.0 does not need the nph
-	  assumption any more; submitted by MIYASAKA Masaru <alkaid AT
-	  coral.ocn.ne.jp> in [ruby-dev:30537].
-
-Mon Mar 12 11:07:44 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/openssl/ossl_asn1.c (Init_ossl_asn1): Let rdoc know about
-	  externally defined modules; submitted by Technorama
-	  Ltd. <oss-ruby AT technorama.net> in [ruby-bugs:PR#4704].
-
-	* ext/openssl/ossl_bn.c (Init_ossl_bn): Ditto.
-
-	* ext/openssl/ossl_cipher.c (Init_ossl_cipher): Ditto.
-
-	* ext/openssl/ossl_digest.c (Init_ossl_digest): Ditto.
-
-	* ext/openssl/ossl_hmac.c (Init_ossl_hmac): Ditto.
-
-	* ext/openssl/ossl_pkey.c (Init_ossl_pkey): Ditto.
-
-	* ext/openssl/ossl_pkey_dh.c (Init_ossl_dh): Ditto.
-
-	* ext/openssl/ossl_pkey_dsa.c (Init_ossl_dsa): Ditto.
-
-	* ext/openssl/ossl_pkey_rsa.c (Init_ossl_rsa): Ditto.
-
-	* ext/openssl/ossl_rand.c (Init_ossl_rand): Ditto.
-
-	* ext/openssl/ossl_ssl.c (Init_ossl_ssl): Ditto.
-
-Mon Mar 12 01:05:17 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/dl/sym.c (rb_dlsym_inspect): Use "0x%x" rather for pointers.
-	  This might not be very right but it is commonly used in other
-	  parts of the code; submitted by sheepman <sheepman AT
-	  sheepman.sakura.ne.jp> in [ruby-dev:30532].
-
-	* ext/dl/ptr.c (rb_dlptr_inspect): Ditto.
-
-Mon Mar 12 00:59:19 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/dl/lib/dl/import.rb (DL::Importable::Internal::import,
-	  DL::Importable::Internal::callback): Avoid race condition for an
-	  instance variable; submitted by sheepman <sheepman AT
-	  sheepman.sakura.ne.jp> in [ruby-dev:30530].
-
-Sun Mar 11 18:57:50 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* misc/README: Add a note about ruby-electric.el.
-
-	* misc/ruby-mode.el (ruby-non-block-do-re): Fix
-	  ruby-non-block-do-re. [ruby-core:03719]
-
-	* misc/inf-ruby.el: Synchronize the comment section with trunk.
-
-	* misc/README, misc/rdebug.el: Add rdebug.el, Emacs ruby-debug
-	  interface based on rubydb3x.el; submitted by Martin Nordholts
-	  <enselic AT gmail.com> in [ruby-bugs:PR#9023].
-
-Sun Mar 11 17:45:51 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/dl/mkcallback.rb (mkfunc): Make sure that a callback
-	  function is found in the function table before trying to call
-	  it; submitted by sheepman <sheepman AT sheepman.sakura.ne.jp>
-	  in [ruby-dev:30524].
-
-Sun Mar 11 12:09:37 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (error_handle): no message when exiting by signal.
-
-	* eval.c (ruby_cleanup): re-send signal.  [ruby-dev:30516]
-
-	* eval.c (rb_thread_interrupt): instantiate SignalException.
-
-	* eval.c (rb_thread_signal_raise): now takes signal number instead
-	  of signal name.
-
-	* intern.h (rb_thread_signal_raise, ruby_default_signal): prototypes.
-
-	* signal.c (esignal_init): takes a signal number and an optional
-	  signal name.
-
-	* signal.c (interrupt_init): pass SIGINT always.
-
-	* signal.c (ruby_default_signal): invoke system default signal
-	  handler.
-
-	* signal.c (rb_signal_exec, trap): handle SIGTERM.  [ruby-dev:30505]
-
-Tue Mar  6 19:08:46 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/digest/lib/md5.rb (MD5::new, MD5::md5): Do not modify
-	  Digest::MD5.
-
-	* ext/digest/lib/sha1.rb (SHA1::new, SHA1::sha1): Ditto.
-
-Tue Mar  6 18:58:37 2007  Keiju Ishitsuka  <keiju@ruby-lang.org>
-
-	* lib/shell/process-controller.rb: fix thread synchronization
-	  problem for [ruby-dev:30477].
-
-Tue Mar  6 18:44:26 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/digest/lib/md5.rb (MD5::new, MD5::md5): Catch up with
-	  Digest's API changes; noted by: Kazuhiro Yoshida <moriq AT
-	  moriq.com> in [ruby-dev:30500].
-
-	* ext/digest/lib/sha1.rb (SHA1::new, SHA1::sha1): Ditto.
-
-Tue Mar  6 18:24:19 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* time.c (time_to_s): Back out the format changes; discussed
-	  in [ruby-dev:30495].
-
-Tue Mar  6 11:53:25 2007  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/sample/irbtkw.rbw: fails to exit process.
-
-Mon Mar  5 20:14:49 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* time.c (time_to_s): Correct the wrong format which did not
-	  really conform to RFC 2822; pointed out by: OHARA Shigeki <os at
-	  iij.ad.jp> in [ruby-dev:30487].
-
-Sun Mar  4 23:38:07 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_stat_s_utime): fixed a commit miss for the platforms
-	  where utimes() does not exist.
-
-	* lib/fileutils.rb (touch): ditto.
-
-Sun Mar  4 14:46:56 2007  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* util.c (push_element): should return a int value.
-
-Sun Mar  4 01:05:57 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/set.rb (Set#^, Set#&): Correct documentation.  Those methods
-	  return sets, not arrays; noted by Oliver Frank Wittich <nietz AT
-	  mangabrain.de>.
-
-Sat Mar  3 23:01:07 2007  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/fileutils.rb (mv): could not move a directory between
-	  different filesystems. [ruby-dev:30411]
-
-Sat Mar  3 22:57:11 2007  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/fileutils.rb (touch): last commit causes error if :mtime
-	  option was not given.
-
-Sat Mar  3 22:37:02 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_file_s_utime): allow nil to set the current time.
-
-	* lib/fileutils.rb (touch): ditto, and added :mtime and :nocreate
-	  options.  fixed: [ruby-talk:219037]
-
-Sat Mar  3 21:17:35 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* eval.c (stack_check): Unset inline to fix build with GCC 3.4.6;
-	  submitted by: NISHIMATSU Takeshi <t_nissie AT yahoo.co.jp> in
-	  [ruby-list:43218].
-	  cf. http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24556
-
-Sat Mar  3 19:05:31 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/thread/thread.c (push_list): Use ALLOC().
-
-	* ext/thread/thread.c (rb_mutex_alloc): Ditto.
-
-	* ext/thread/thread.c (rb_condvar_alloc): Ditto.
-
-Sat Mar  3 18:53:11 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* NEWS: Add a note for String#intern.
-
-Sat Mar  3 16:23:13 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* env.h (SCOPE_CLONE): Introduce a new scope flag to prevent a
-	  local_tbl region from getting freed many times; submitted by
-	  Chikanaga Tomoyuki <chikanag AT nippon-control-system.co.jp> in
-	  [ruby-dev:30460].
-
-	* eval.c (proc_invoke): Ditto.
-
-	* gc.c (obj_free): Ditto.
-
-	* parse.y (top_local_setup_gen): Ditto.
-
-Sat Mar  3 16:07:02 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* object.c (rb_obj_ivar_set): RDoc updated according to a
-	  suggestion from Brian Candler <B.Candler AT pobox.com>.
-	  [ruby-core:10469]
-
-Thu Mar  1 21:38:07 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (stmt, arg): should not omit lhs of OP_ASGN1 even if
-	  empty.  [ruby-dev:30455]
-
-Thu Mar  1 08:55:38 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_feature_p): check loading_tbl if the given ext is
-	  empty.  [ruby-dev:30452]
-
-	* eval.c (rb_feature_p): fix possible buffer overrun.
-
-Thu Mar  1 03:30:21 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/digest/digest.c (get_digest_base_metadata): Allow inheriting
-	  Digest::Base subclasses, which was unintentionally made
-	  impossible while restructuring Digest classes.
-
-Thu Mar  1 02:05:17 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* mkconfig.rb (patchlevel): read from version.h.
-
-Thu Mar  1 00:09:39 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_provided): return true only for features loaded from
-	  .rb files, and not search actual library type.  [ruby-dev:30414]
-
-Wed Feb 28 21:15:00 2007  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* configure.in (ac_cv_func_fcntl): fcntl support for MinGW.
-
-	* missing/flock.c: workaround for MinGW.
-
-Wed Feb 28 20:51:32 2007  URABE Shyouhei  <shyouhei@ruby-lang.org>
-
-	* pack.c (pack_unpack): properly ignore non-base64 octets such as
-	  UTF-8 encoded BOMs; submitted by SOUMA Yutaka <holon@radastery.jp>
-	  to fix [ruby-core:10437]
-
-Wed Feb 28 18:59:57 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* NEWS: Add NEWS, a document file to keep user visible feature
-	  changes between releases.
-
-Wed Feb 28 18:35:50 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/openssl/extconf.rb: no need to check unistd.h and sys/time.h.
-	  they are already checked at configure.
-	  reported by KOBAYASHI Yasuhiro [ruby-list:43225]
-
-Wed Feb 28 18:34:48 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* lib/mkmf.rb ($DEFLIBPATH): default library paths ($(topdir), etc)
-	  should be the first elements of library paths list.
-	  reported by KOBAYASHI Yasuhiro [ruby-list:43225]
-
-Wed Feb 28 18:31:32 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* doc/NEWS-1.8.0: Rename NEWS to NEWS-1.8.0.  This is way too old
-	  NEWS.
-
-Wed Feb 28 01:22:58 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/{dbm,gdbm}/test_{dbm,gdbm}.rb: shouldn't use host_os. use
-	  target_os instead. reported by KOBAYASHI Yasuhiro [ruby-list:43225]
-
-Wed Feb 28 00:08:11 2007  URABE Shyouhei  <shyouhei@ice.uec.ac.jp>
-
-	* mkconfig.rb (RbConfig): add CONFIG['PATCHLEVEL']
-
-	* common.mk: new target dist
-
-	* distruby.rb: new file
-
-Tue Feb 27 22:18:45 2007  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* configure.in (--enable-auto-image-base): avoid the neccessity to
-	  rebase the shared libs as much as possible;
-	  submitted by Corinna Vinschen <spam at vinschen.de> in
-	  [ruby-talk:240964].
-
-Tue Feb 27 21:36:47 2007  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* util.c (__crt0_glob_function): use ruby_glob() instead of rb_globi().
-
-Tue Feb 27 21:33:04 2007  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* configure.in (ac_cv_func_setrlimit): workaround for djgpp.
-
-Tue Feb 27 19:38:52 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/base64.rb (Base64::b64encode): Fix documentation; submitted
-	  by David Symonds <dsymonds@gmail.com> in [ruby-core:10432].
-
-Tue Feb 27 19:36:57 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* regex.c (calculate_must_string, slow_search, re_search): Silence
-	  warnings regarding char * vs. unsigned char * mismatch;
-	  submitted by Lyle Johnson <lyle.johnson@gmail.com>
-	  in [ruby-core:10416].
-
-	* ext/bigdecimal/bigdecimal.c (BigDecimal_load): Ditto.
-
-	* ext/digest/sha1/sha1ossl.c (SHA1_Finish): Ditto.
-
-	* ext/digest/rmd160/rmd160ossl.c (RMD160_Finish): Ditto.
-
-	* ext/digest/digest.c (rb_digest_base_finish,
-	  rb_digest_base_update): Ditto.
-
-	* ext/nkf/nkf.c (rb_str_resize, rb_nkf_kconv, rb_nkf_guess1,
-	  rb_nkf_guess2): Ditto.
-
-Tue Feb 27 03:40:09 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/thread/thread.c (wait_list_cleanup, rb_mutex_try_lock):
-	  Eliminate rb_thread_critical switching where unnecessary;
-	  implied by shugo in [ruby-dev:30412].
-
-	* ext/thread/thread.c (set_critical): Merge in
-	  thread_exclusive_ensure().
-
-	* ext/thread/thread.c: Consistently use 0 and 1 for
-	  rb_thread_critical values.
-
-Mon Feb 26 15:18:23 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/thread/thread.c: Use xmalloc()/xfree() instead of
-	  malloc()/free(); pointed out by shugo in [ruby-dev:30412].
-
-Sun Feb 25 23:02:55 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/test/unit/autorunner.rb (Test::Unit::AutoRunner::initialize):
-	  Initialize @workdir properly to silence a warning under -w.
-	  Submitted by <tommy at tmtm.org> in [ruby-dev:30400].
-
-Sun Feb 25 02:47:43 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* defines.h: Pull the RUBY_MBCHAR_MAXSIZE definition from trunk,
-	  which is necessary for dir.c to compile on djgpp and emx.
-
-Sat Feb 24 10:42:01 2007  Minero Aoki  <aamine@loveruby.net>
-
-	* ext/racc/cparse/cparse.c (cparse_params_mark): remove useless
-	  rb_gc_mark.  Thanks Tomoyuki Chikanaga. [ruby-dev:30405]
-
-Fri Feb 23 15:10:46 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (set_pioinfo_extra): new function for VC++8 SP1
-	  workaround. [ruby-core:10259]
-
-	* win32/win32.c (NtInitialize): call above function.
-
-Fri Feb 23 14:19:40 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* signal.c (sighandler): need to tell to be interrupted to main
-	  context when handler is installed.
-
-	* win32/win32.[ch] (rb_win32_interrupted): new function to listen
-	  interrupt.
-
-Fri Feb 23 13:02:17 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* numeric.c (fix_cmp, fix_equal): Remove FIX2LONG() to optimize.
-	  suggested in
-	  http://t-a-w.blogspot.com/2007/02/making-ruby-faster.html.
-	  [ruby-talk:240223]
-
-Fri Feb 23 12:43:17 2007  James Edward Gray II  <james@grayproductions.net>
-
-	* lib/xmlrpc/client.rb (XMLRPC::Client::do_rpc): Make the
-	  Content-Length parameter optional for responses in
-	  xmlrpc/client.rb; suggested by Daniel Berger
-	  <Daniel.Berger@qwest.com> and approved by the maintainer.
-
-	* lib/xmlrpc/create.rb (XMLRPC::Create::conv2value): Add DateTime
-	  support to xmlrpc; approved by the maintainer.
-
-Mon Feb 19 18:22:52 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in, defines.h, eval.c (rb_feature_p, rb_provided,
-	  load_wait, search_required, rb_require_safe), ext/extmk.rb: Fix
-	  a bug where a statically linked extension cannot be autoloaded.
-	  [ruby-dev:30023] / [ruby-dev:30239]
-
-Mon Feb 19 17:14:28 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/socket/socket.c (unix_peeraddr): wrong syscall name in error
-	  message for #peeraddr. a patch from Sam Roberts
-	  <sroberts at uniserve.com>.  [ruby-core:10366]
-
-Sun Feb 18 19:35:21 2007  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date/format.rb: updated based on date2 4.0.3.
-
-Fri Feb 16 11:18:21 2007  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/.document: Apply patch for irb, e2mmap and README by Hugh Sasse
-	  <hgs at dmu.ac.uk> from [ruby-core:10135]
-
-	* lib/prettyprint.rb: Suppress RDoc for PrettyPrint test suite.
-
-Thu Feb 15 20:26:30 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/uri/ftp.rb: Revert the previous change pending discussion.
-
-Thu Feb 15 18:08:17 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* dir.c (glob_helper): Fix the function declaration.
-
-Thu Feb 15 17:13:32 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* version.h: Welcome to the post-1.8.6 world.  Radical changes are
-	  inhibited in the ruby_1_8 branch until the 1.8.6 final release
-	  goes out of the door.
-
-Thu Feb 15 16:44:14 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/uri/generic.rb (URI::Generic::userinfo): Considering how
-	  `scheme://user:@...', `scheme://:password@...' and
-	  `scheme://:@...' are parsed, an empty user name or password
-	  should be allowed and represented as it is.
-
-Thu Feb 15 11:46:05 2007  KIMURA Koichi  <hogemuta@gmail.com>
-
-	* dir.c, win32/win32.c, win32/dir.h, ruby.h, intern.h: Bring
-	  encoding aware globbing support in from trunk.  Dir.[] and
-	  Dir.glob() can now take many patterns in an array.  Minor fixes
-	  will follow.
-
-Thu Feb 15 11:00:26 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/uri/generic.rb (URI::Generic::userinfo): should support
-	  empty password.  [ruby-core:10290]
-
-	* lib/uri/generic.rb (URI::Generic::set_password): password can be
-	  cleared by nil.  [ruby-core:10290]
-
-	* lib/uri/common.rb (escape): regard second string argument as a
-	  character set properly. [ruby-dev:27692]
-
-	* lib/uri/ftp.rb: Attempt to conform to RFC 1738 with regard to
-	  relative/absolute paths.
-
-	* lib/uri: Lovely RDOC patches from mathew (metaATpoboxDOTcom).
-
-Thu Feb 15 10:57:38 2007  Tietew  <tietew@tietew.net>>
-
-	* lib/cgi.rb (CGI::unescapeHTML): invalid decoding for single
-	  unescaped ampersand.  a patch from Tietew
-	  <tietew+ruby-dev at tietew.net> in [ruby-dev:30292].
-	  fixed: [ruby-dev:30289]
-
-Thu Feb 15 10:48:40 2007  MenTaLguY  <mental@rydia.net>
-
-	* ext/thread/thread.c: Handle interrupted waits correctly.
-	  [ruby-bugs:PR#8663]
-
-Wed Feb 14 19:22:15 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/digest/lib/digest.rb (Digest::self.const_missing): Drop
-	  autoloads for sha2 classes in favor of handling in
-	  const_missing(), to work around a problem exposed on OS X.
-
-Tue Feb 13 02:21:12 2007  Sam Roberts  <sroberts@uniserve.com>
-
-	* io.c (rb_f_syscall): Fix buffer overflow with syscall
-	  arguments.  [ruby-bugs:PR#8541]
-
-Sun Feb 11 07:46:45 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/cgi.rb (CGI::QueryExtension::read_multipart): Properly parse
-	  a quoted-string in a Content-Disposition value.
-
-Sun Feb 11 06:27:54 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* configure.in, ext/thread/extconf.rb, lib/thread.rb: Add a
-	  configure option `--disable-fastthread', to choose the original,
-	  pure ruby version of the "thread" library instead of the new,
-	  much faster implementation in ext/thread.
-
-Sun Feb 11 06:22:20 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/Setup: Add thread except for platforms without threads
-	  support.
-
-Sun Feb 11 06:15:16 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/thread/lib/thread.rb: Add a replacement of thread.rb that
-	  loads this extension.
-
-Sun Feb 11 05:39:47 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/thread.rb: Remove an ineffective part of the code.
-
-Sun Feb 11 05:32:54 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/thread/thread.c (rb_thread_exclusive): Implement
-	  Thread.exclusive.
-
-Sun Feb 11 05:26:51 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/thread/thread.c: Get rid of use of a dummy function.
-
-Sun Feb 11 01:45:31 2007  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/thread/thread.c (Init_thread): Define missing aliases:
-	  Queue#enq and SizedQueue#enq.
-
-Sat Feb 10 09:27:35 2007  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/win32ole.c (ole_variant2val): fix compile error
-	  on VC++.
-
-Sat Feb 10 07:41:52 2007  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/win32ole.c (ole_variant2val): fix the bug when
-	  SAFEARRAY pointer is NULL.
-
-Sat Feb 10 00:13:11 2007  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: fix typo (TkConfigMethod::__confinfo_cmd,
-	  __conv_keyonly_opts).
-
-Fri Feb  9 20:44:53 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/thread: Make style fixes (mostly de-K&R'ism) to match the
-	  rest of the source code.
-
-	* ext/thread: Make USE_MEM_POOLS an extconf option.
-
-Fri Feb  9 20:43:01 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/thread: Import the "fastthread" implementation by MenTaLguY
-	  in the original form.  This module is not hooked into the build
-	  yet since it needs some style fixes and adjustments.
-
-Fri Feb  9 15:46:09 2007  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/bigdecimal: Synchronize with trunk.  Better function
-	  prototypes, removal of a useless method `!=', and document
-	  updates.
-
-Tue Feb 06 22:06:45 2007  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/nkf/nkf-utf8/{nkf.c,utf8tbl.c}:
-	  imported nkf 2007-01-28.
-	  * Fixed: can't decode MIME encode JIS string.
-	  * Fixed: Fullwitdh-halfwidth conversion.
-	  * Support DoCoMo's and Softbank's EMOJI
-	  * Support CP932, CP5022x, eucJP-ms UDC
-	  * Support UTF-32 encoding
-	  * Support beyond BMP
-	  [ruby-dev:29700] [ruby-dev:29922] [ruby-dev:30144]
-
-Wed Jan 31 14:52:09 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_iterate): need to PUSH_ITER in proper order.
-	  [ruby-core:10125]
-
-	* test/ruby/test_iterator.rb (TestIterator::test_block_given_within_iterator):
-	  add new test.  [ruby-core:10125]
-
-Tue Jan 30 14:58:51 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* string.c (rb_str_sub_bang): calling rb_str_modify() should be just
-	  before actually modifying the string.
-	  fixed: [ruby-dev:30211] (originally reported by zunda)
-
-Tue Jan 30 12:05:35 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* mkconfig.rb: autoconf 2.61 support.  [ruby-core:10016]
-
-Sat Jan 27 15:20:11 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* parse.y (dyna_var_lookup): should not alter dvar->val not to
-	  destroy living value.  [ruby-core:10076]
-
-	* parse.y (dyna_init): ditto.
-
-Fri Jan 26 12:03:39 2007  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb (TkConfigMethod#__confinfo_cmd,
-	  __conv_keyonly_optkeys): make them private [ruby-dev:30074].
-
-	* ext/tk/lib/tk/txtwin_abst.rb: fix typo [ruby-dev:30073].
-
-	* ext/tk/lib/tk/canvas.rb (TkCanvas#scan_dragto): lack of an argument.
-
-	* ext/tk/lib/tk/canvas.rb: clarify the including module name
-	  [ruby-dev:30080].
-
-	* ext/tk/lib/tk/scrollable.rb: change primary name of modules
-	  [ruby-dev:30080].
-
-Wed Jan 24 18:05:39 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* misc/ruby-mode.el (ruby-font-lock-syntactic-keywords): fix
-	  regexp font-lock bug.  [ruby-talk:235758]
-
-Tue Jan 23 11:02:33 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/webrick/httprequest.rb (WEBrick::HTTPRequest::read_line):
-
-Tue Jan 23 18:26:12 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/cgi.rb (CGI::QueryExtension::read_multipart): use == instead
-	  of ===.  [ruby-dev:30176]
-
-Tue Jan 23 10:48:17 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* hash.c: added documentation for Hash about how it uses eql? and
-	  hash methods for the keys.  [ruby-core:09995]
-
-Mon Jan 22 14:57:25 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/socket/socket.c: fix errors in socket sample code.
-	  [ruby-core:09992]
-
-Sat Jan 13 23:54:48 2007  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/win32ole.c (ole_free, ole_type_free,
-	  olemethod_free, olevariable_free, oleparam_free,
-	  ole_event_free): fix memory leak.  [ruby-core:09846]
-
-Fri Jan 12 11:13:55 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/etc/etc.c (etc_getpwuid, etc_getgrgid): fix to correctly
-	  convert uid/gid from VALUE. (backport of r11521)
-
-Wed Jan 10 18:57:57 2007  Minero Aoki  <aamine@loveruby.net>
-
-	* ext/strscan/strscan.c (strscan_do_scan): should set kcode option
-	  before match. [ruby-dev:29914]
-
-	* test/strscan/test_stringscanner.rb: test it.
-
-	* re.c: export kcode_set_option and kcode_reset_option (with "rb_"
-	  prefix).
-
-	* intern.h: ditto.
-
-Tue Jan  9 17:45:17 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* file.c (rb_find_file): should not call fpath_check() with NULL.
-	  fixed: [ruby-core:09867]
-
-Tue Jan  9 03:54:38 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (rb_str_upto): String#upto from empty string makes
-	  inifinite loop.  [ruby-core:09864]
-
-Sun Jan  7 12:13:26 2007  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/parsers/parse_c.rb (RDoc::C_Parser#find_class_comment):
-	  Look for class and module comments above rb_define_class and
-	  rb_define_module.  Patch by Daniel Berger <djberg96 at gmail.com>
-
-Sun Jan  7 10:32:12 2007  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/parsers/parse_c.rb (RDoc::C_Parser#handle_constants):
-	  Properly handle escaping of : in comments.
-	* test/rdoc/parsers/test_parse_c.rb:
-	  Test RDoc::C_Parser#do_classes and Rdoc::C_Parser#find_class_comment.
-
-Sun Jan  7 09:33:02 2007  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date/format.rb: updated based on date2 4.0.1.
-
-Wed Jan  3 11:36:51 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (ruby_dup): start GC on ENOMEM as well.
-
-Mon Jan  1 06:13:11 2007  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/parsers/c_parser.rb: Make Rdoc accessible.  Update constant
-	  value information.
-
-Mon Jan  1 06:13:11 2007  Eric Hodel  <drbrain@segment7.net>
-
-	* ext/bigdecimal/bigdecimal.c: Update constant comments to provide
-	  values for RDoc.
-
-Mon Jan  1 06:05:55 2007  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/parsers/parse_c.rb (RDoc::C_Parser#handle_constansts):
-	  Allow RDoc comment to give friendly value for rb_define_const.  Patch
-	  by Daniel Berger <djberg96 at gmail.com>, [ruby-patches-7499].
-	* lib/rdoc/parsers/parse_c.rb (RDoc::C_Parser#handle_constansts): Fix
-	  whitespace handling in constant comments.
-
-Sun Dec 31 00:31:16 2006  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date.rb, lib/date/format.rb: updated based on date2 4.0.
-
-Thu Dec 14 18:29:13 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/readline/readline.c: NetBSD editline does not have
-	  rl_username_completion_function() and rl_completion_matches().
-	  a patch from Takahiro Kambe <taca at back-street.net>.
-	  [ruby-dev:30008]
-
-Thu Dec 14 18:20:43 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/irb/locale.rb (IRB::Locale::puts): typo fixed.  a patch from
-	  NAKAMURA Usaku <usa@ruby-lang.org>.  [ruby-dev:30012]
-
-Mon Dec 11 11:58:36 2006  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/digest/sha2/lib/sha2.rb: Moved one level up from under
-	  the superfluous subdirectory digest/.
-
-Mon Dec 11 11:46:18 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* variable.c (rb_define_const): typo fixed.
-
-Mon Dec 11 09:36:29 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (rb_str_aset): index double decode problem.
-	  [ruby-core:09695]
-
-Sat Dec  9 21:39:24 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (ruby_cleanup): keep the exception till after END blocks.
-	  [ruby-core:09675]
-
-Sat Dec  9 11:22:00 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/irb/locale.rb (IRB::Locale::search_file): ues File.exist?
-	  instead of File.exists?.  a patch from Yutaka Kanemoto
-	  <kinpoco at gmail.com> in [ruby-dev:30000].
-
-Thu Dec  7 09:29:02 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/weakref.rb (WeakRef::__setobj__): should support
-	  marshaling.  [ruby-talk:228508]
-
-	* lib/delegate.rb (Delegator::marshal_load): need to call
-	  __setobj__.
-
-Wed Dec  6 23:56:14 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* Makefile.in, common.mk (NULLCMD): moved for platforms that empty
-	  command does not run.  fixed: [ruby-dev:29994]
-
-Wed Dec  6 17:17:26 2006  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* configure.in (SITE_DIR): fixed to emtpy RUBY_SITE_LIB in config.h on
-	  NetBSD.  fixed: [ruby-dev:29358]
-
-Tue Dec  5 00:59:05 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* misc/ruby-mode.el (ruby-parse-partial): need to parse "/=" as
-	  self assignment operator, not regex.  [ruby-talk:227324]
-
-Mon Dec  4 10:48:03 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ruby.h (OFFT2NUM): use LONG2NUM() if sizeof(long) equals to
-	  sizeof(off_t).
-
-Mon Dec  4 10:43:46 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* parse.y (dyna_init_gen): dvar initialization only if dvar is
-	  assigned inner block.  [ruby-talk:227402]
-
-Mon Dec  4 08:32:49 2006  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/cgi.rb (CGI::QueryExtension::read_multipart): should quote
-	  boundary. JVN#84798830
-
-Sat Dec  2 07:09:04 2006  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_ocsp.c: OpenSSL::OCSP::OSCPError should be
-	  subclass of OpenSSL::OpenSSLError. [ruby-dev:29980]
-
-Fri Dec  1 17:01:49 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* gc.c (ruby_init_stack): decrease "stack level too deep" in Windows.
-	  merge from trunk.
-
-Fri Dec  1 16:31:53 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/tcltklib.c: shouldn't run the killed thread at callback.
-	  [ruby-talk: 227408]
-
-Mon Nov 27 17:18:27 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* sprintf.c (rb_f_sprintf): need not to truncate string if no
-	  width specifier given for %s.  [ruby-dev:29952]
-
-Sun Nov 26 16:36:46 2006  URABE Shyouhei  <shyouhei@ruby-lang.org>
-
-	* version.h: addition of RUBY_PATCHLEVEL.
-	* version.c: ditto.
-
-Fri Nov 24 10:17:51 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* bignum.c (bignorm): avoid segmentation.  a patch from Hiroyuki
-	  Ito <ZXB01226@nifty.com>.  [ruby-list:43012]
-
-Thu Nov 23 10:38:40 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_mod_define_method): set implicit visibility only when
-	  it's called for the target class (ruby_cbase).
-
-Wed Nov 22 16:00:49 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/extconf.rb: support --with-X11/--without-X11 option.
-
-	* ext/tk/README.tcltklib: add description about --with-X11-* option
-	  [ruby-talk:225166] and --with-X11/--without-X11 option.
-
-	* ext/tk/tkutil/extconf.rb: able to be called manually
-	  [ruby-talk:225950].
-
-Wed Nov 15 23:22:54 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (test_grpowned, rb_stat_grpowned): should honor
-	  supplementary group IDs.  [ruby-core:09546]
-
-Thu Nov  9 03:15:22 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (BEGIN_CALLARGS): ruby_block may be NULL even when
-	  ITER_PRE.
-
-Tue Nov  7 18:34:34 2006  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/digest/lib/digest/hmac.rb: Keep this out of the 1.8 tree
-	  until we reach a consensus that HMAC should be put under Digest.
-
-Tue Nov  7 18:05:01 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/itemconfig.rb: minor bug fix.
-
-Mon Nov  6 20:11:20 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/0.9.rb (RSS::Rss): removed needless include.
-
-Mon Nov  6 15:41:55 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/itemconfig.rb: ext/tk/lib/tk/itemconfig.rb: bug
-	  fix on 'itemconfiginfo' method, and modify to make it easy to
-	  override 'itemconfiginfo' method.
-
-	* ext/tk/lib/tkextlib/tile/treeview.rb : support Tile 0.7.8.
-
-	* ext/tk/lib/tkextlib/version.rb : [new] add Tk::Tkextlib_RELEASE_DATE
-	  to get the information from scripts.
-
-	* ext/tk/lib/tk.rb: load 'tkextlib/version.rb', and update RELEASE_DATE
-
-	* ext/tk/lib/tkextlib/SUPPORT_STATUS: update.
-
-	* ext/tk/sample/editable_listbox.rb: [new] the listbox with editable
-	  items. It's one of the example about usage of Place geometry manager.
-
-	* ext/tk/sample/tktextio.rb: improve the functions of TkTextIO class.
-	  Those are required by 'irbtkw.rbw'.
-
-	* ext/tk/sample/irbtkw.rbw: [new] IRB on Ruby/Tk. It doesn't need any
-	  real console. IRB works on a text widget without I/O blocking. That
-	  is, thread switching on IRB will work properly, even if on Windows.
-
-Sun Nov  5 19:53:49 2006  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date.rb: updated based on date2 3.9.7.
-
-Sat Nov  4 13:13:57 2006  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/imap.rb: accept NOMODSEQ. [ruby-core:9002]
-	  (backported from HEAD)
-
-Fri Nov  3 00:16:37 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/socket/socket.c (ruby_getnameinfo__aix): AF_INET6 workaround
-	  for AIX.  a patch from Yutaka Kanemoto <kinpoco AT gmail.com>.
-	  [ruby-dev:29744]
-
-Thu Nov  2 15:43:39 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* parse.y (primary): should set NODE even when compstmt is NULL.
-	  merge from trunk. fixed: [ruby-dev:29732]
-
-Thu Nov  2 14:48:30 2006  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/set.rb (Set#^): Fix XOR operation against a container that
-	  holds duplicate values. [issue: #6444]
-
-Wed Nov  1 02:41:38 2006  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/digest/lib/digest/hmac.rb (Digest::HMAC::update): Minor
-	  optimization.
-
-	* ext/digest/digest.c (rb_digest_instance_equal): Allow comparing
-	  a digest instance with another of a different class.
-
-Wed Nov  1 01:05:13 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* eval.c (rb_call0): fixed bug of zsuper with both of opt and rest.
-	  fixed: [ruby-list:42928]
-
-	* test/ruby/test_super.rb: add tests to check above bug.
-
-Tue Oct 31 17:03:21 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* time.c (time_dup): duplicate the class of original time.
-	  [ruby-core:09357]
-
-	* lib/time.rb (Time::make_time, Time::rfc2822, Time::httpdate):
-	  should respect subclasses.  [ruby-core:09357]
-
-Mon Oct 30 23:40:52 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* Makefile.in (miniruby): add XLDFLAGS.
-
-	* configure.in (aix): use -bE option for miniruby.  [ruby-dev:29698]
-
-	* dir.c (glob_helper): get rid of possible memory leak.
-
-	* win32/win32.c (cmdglob, rb_w32_cmdvector, rb_w32_opendir,
-	  rb_w32_get_environ): not to use GC before initialization.
-
-Mon Oct 30 19:29:20 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* bignum.c (rb_big2str0): use better approximation.
-
-Mon Oct 30 18:35:33 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* bignum.c (rb_big2str0): wrong allocation length.  a patch from
-	  U.Nakamura <usa at garbagecollect.jp> [ruby-dev:29710]
-
-Mon Oct 30 12:34:02 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_eval): fix commit miss.  [ruby-dev:29707]
-
-Mon Oct 30 12:20:58 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* bignum.c (rb_big2str0): a bug in length adjustment.
-
-Mon Oct 30 11:15:40 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* sprintf.c (rb_str_format): should preserve leading zero
-	  information for negative %b and %x.  [ruby-talk:221347]
-
-Thu Oct 26 21:05:58 2006  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_pkcs7.c (ossl_pkcs7_verify): should clear error.
-	  (fix http://bugs.debian.org/394336)
-
-	* ext/openssl/ossl_ns_spki.c (ossl_spki_initialize): ditto.
-
-Thu Oct 26 15:21:10 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/digest/digest.c (Init_digest): typo.
-
-Wed Oct 25 17:23:28 2006  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ext/digest, test/digest/test_digest.rb: Merge from trunk:
-	  - Introduce versioning in Digest::Base API, and prefix C
-	    constants with RUBY_ and C type names with rb_ to avoid name
-	    clash in writing extensions.
-	  - Introduce Digest::Class and Digest::Instance for ease of
-	    implementing subclasses and add-ons.
-	  - Digest::Instance module requires and assumes that any instance
-	    be resettable and clonable.  An instance method #new() is
-	    added so digest instances work just like digest classes.
-	  - The constructor does no longer take an initial string to feed;
-	    digest() and hexdigest() now do, instead.  This allows digest
-	    classes to take their own hashing parameters.
-	  - Make some changes to digest() and hexdigest() class methods,
-	    which now take extra arguments, which are passed through to
-	    the constructor in an internal call.
-	  - Add #digest_length/size/length() and #block_length(),
-	  - Add the Digest::SHA2 class to wrap up SHA2 variants: SHA256,
-	    SHA384 and SHA512, hoping this module would make a decent
-	    example of a digest subclass written in Ruby.
-	  - Rip BubbleBabble support out of the base class and have a
-	    separate module named digest/bubblebabble.
-	  - Remove RD documents in favor of newly written and embedded
-	    RDoc documentation.
-
-Wed Oct 25 08:03:23 2006  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date/format.rb: updated based on date2 3.9.6.
-	  [ruby-core:09323]
-
-Sun Oct 22 14:48:31 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* signal.c (ruby_signal): don't set SA_RESTART.  a backport from
-	  the HEAD.  [ruby-talk:220937]  [ruby-talk:147220]
-
-	* signal.c (Init_signal): avoid duplicated installation of SIGCHLD
-	  handler.
-
-Sun Oct 22 16:47:56 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_str_substr): should be infected with only original
-	  string, but not the shared string.  fixed: [ruby-core:09152]
-
-	* string.c (rb_str_new4): keep shared string untainted when orignal
-	  string is tainted.  fixed: [ruby-dev:29672]
-
-Sun Oct 22 05:20:34 2006  URABE Shyouhei  <shyouhei@ice.uec.ac.jp>
-
-	* configure.in: alloca is broken; use C_ALLOCA instead.
-	  [ruby-dev:29416]
-
-Fri Oct 20 10:47:43 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* lib/mkmf.rb: fixed the bug of handling COMMON_MACROS.
-
-Fri Oct 20 08:42:38 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk (NULLCMD): dummy command.
-
-	* bcc32/Makefile.sub (post-install-*): Borland make cannot ignore
-	  command-less double-colon rules.  [ruby-dev:29676]
-
-Fri Oct 20 00:37:07 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* bcc32/Makefile.sub ($(LIBRUBY_SO)): execute pre-link hook.
-
-	* ext/extmk.rb: workaround for Borland make.
-
-Wed Oct 18 23:02:40 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* array.c (rb_ary_shift): shorten copy size.  fixed: [ruby-list:42907]
-
-	* signal.c (Init_signal): handle SIGTERM.  fixed: [ruby-list:42895]
-
-	* win32/win32.c (rb_w32_utime): allow NULL to set the current time.
-	  [ruby-talk:219248]
-
-Wed Oct 18 00:55:33 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (parser_yylex): use particular enums.  [ruby-core:09221]
-
-Mon Oct 16 08:30:43 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* mkconfig.rb: *OBJS are not needed for extension libraries.
+Mon Jun 27 08:56:55 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* {bcc32,wince,win32}/Makefile.sub (config.status): fixed typo,
-	  missing comma.
+	* compile.c (ADD_TRACE): ignore trace instruction on non-positive
+	  line.
 
-Sun Oct 15 01:03:08 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* parse.y (coverage): get rid of ArgumentError when the starting
+	  line number is not positive.  [ruby-core:76141] [Bug #12517]
 
-	* lib/test/unit/collector/dir.rb (Collector::Dir#collect): append base
-	  directory but not prepend.
+Sun Jun 26 10:20:25 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/test/unit/collector/dir.rb (Collector::Dir#collect_file): do not
-	  join with dot.  fixed: [ruby-core:09179]
+	* ext/win32/lib/Win32API.rb (Win32API#initialize): Cygwin
+	  2.5.2-1 (perhaps) seems to no longer append ".dll" suffix
+	  implicitly.
 
-Sat Oct 14 23:39:50 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* ext/win32/lib/win32/resolv.rb (Win32::Resolv): ditto.  Fix the
+	  error reported by yamataka AT u08.itscom.net in
+	  [ruby-list:50339], and pointed out and patched by cerberus AT
+	  m3.kcn.ne.jp in [ruby-list:50341].
 
-	* parse.y (singleton): no need to re-create NODE_SELF() again.
-	  [ruby-core:09177]
+Sat Jun 25 10:07:52 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Sat Oct 14 23:25:31 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* test/openssl/test_ocsp.rb: Ignore errors caused by bugs that exist in
+	  LibreSSL >= 2.3.1.
 
-	* parse.y (parser_warning, parser_warn): some error message may
-	  contain format specifiers.  a patch from Akinori MUSHA <knu at
-	  iDaemons.org>.  [ruby-dev:29657]
+Sat Jun 25 02:33:33 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/bigdecimal/bigdecimal.c (VpException): ditto.
+	* vm_method.c (vm_respond_to): try method_missing if respond_to?
+	  is undefined, as if it is the default definition.
+	  [ruby-core:75377] [Bug #12353]
 
-	* ext/dl/handle.c (rb_dlhandle_initialize): ditto.
+Fri Jun 24 17:04:21 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/gdbm/gdbm.c (rb_gdbm_fatal): ditto.
+	* ext/psych/*, test/psych/*: Update psych 2.1.0
+	  This version fixed [Bug #11988][ruby-core:72850]
 
-Sat Oct 14 08:24:45 2006  Akinori MUSHA  <knu@iDaemons.org>
+Fri Jun 24 13:12:41 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/digest/lib/digest/hmac: Back out the addition of digest/hmac
-	  for now because the API is too premature for a stable branch.
+	* lib/rubygems.rb, lib/rubygems/*, test/rubygems/*:
+	  Update rubygems 2.6.5 and 2.6.6.
+	  Release note of 2.6.5: https://github.com/rubygems/rubygems/commit/656f5d94dc888d78d0d00f3598a4fa37391aac80
+	  Release note of 2.6.6: https://github.com/rubygems/rubygems/commit/ccb9c3300c063f5b5656669972d24a10ef8afbf5
 
-Sat Oct 14 00:55:08 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jun 24 09:17:15 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* bcc32/Makefile.sub (post-install-ext): no longer needed.
+	* common.mk (lib/unicode_normalize/tables.rb): should not depend
+	  on Unicode data files unless ALWAYS_UPDATE_UNICODE=yes, to get
+	  rid of downloading Unicode data unnecessary.  [ruby-dev:49681]
 
-	* bcc32/configure.bat: get rid of a quirk of Borland make, which
-	  sets empty macro in command line to "1".
+	* common.mk (enc/unicode/casefold.h): update Unicode files in a
+	  sub-make, not to let the header depend on the files always.
 
-Fri Oct 13 22:50:43 2006  Tadayoshi Funaba  <tadf@dotrb.org>
+	* enc/unicode/case-folding.rb: if gperf is not usable, assume the
+	  existing file is OK.
 
-	* lib/date.rb: updated based on date2 3.9.5.
+Tue Jun 21 19:44:54 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Fri Oct 13 22:33:28 2006  Minero Aoki  <aamine@loveruby.net>
+	* test/ruby/enc/test_regex_casefold.rb: Add Windows-1251, KOI8-R, and
+	  KOI8-U to encodings; definitely removed EUC-JP.
 
-	* lib/fileutils.rb (FileUtils.cp_r): dereference_root=true is
-	  default in Ruby 1.8.  This line is wrongly removed in last commit.
+Tue Jun 21 19:32:23 2016  Mark St.Godard  <markstgodard@gmail.com>
 
-Fri Oct 13 18:19:31 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* lib/webrick/httprequest.rb (setup_forwarded_info): Use the first
+	  value in X-Forwarded-Proto, if header contains multiple comma
+	  separated values.  Some middlewares may add these values to the
+	  list, not replacing.  [Fix GH-1386]
 
-	* object.c: Class#inherited RDoc added.  a patch from Daniel
-	  Berger <djberg96 at gmail.com>  [ruby-core:08942]
+Tue Jun 21 17:17:42 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Fri Oct 13 02:30:12 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/test_io.rb: Skip test_readpartial_with_not_empty_buffer,
+	  test_read_buffer_error, test_read_unlocktmp_ensure,
+	  test_readpartial_unlocktmp_ensure, and
+	  test_sysread_unlocktmp_ensure on cygwin,
+	  because these tests repeatedly hang. This makes test_io.rb
+	  complete in finite time on cygwin.
 
-	* lib/test/unit/collector/dir.rb (Collector::Dir#collect): prepend
-	  base directory to load path.
+	* ChangeLog: Fix test_in.rb -> test_io.rb (two instances).
 
-	* lib/test/unit/collector/dir.rb (Collector::Dir#collect_file): should
-	  use the given File-like interface, but not File directly.
+Tue Jun 21 16:38:14 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/testunit/collector/test_dir.rb (TestDir::FileSystem): implement
-	  File-like methods correctly.
+	* string.c (rb_str_casemap): do not put code with side effects
+	  inside RSTRING_PTR() macro which evaluates the argument multiple
+	  times.
 
-Fri Oct 13 01:48:42 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Tue Jun 21 16:13:45 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/date.rb (Date::self.complete_hash): need to check if g is
-	  nil before dereference.  [ruby-core:09116]
+	* string.c (rb_str_casemap): fix memory leak.
 
-Fri Oct 13 00:34:26 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Tue Jun 21 16:12:21 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* object.c (rb_mod_cvar_defined): wrong id check.  a patch from
-	  Mauricio Fernandez <mfp at acm.org>.  [ruby-core:09158]
+	* string.c (rb_str_casemap): int is too small for string size.
 
-	* object.c (rb_mod_cvar_get): typo fixed.  [ruby-core:09168]
+Tue Jun 21 15:42:22 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* object.c (rb_mod_cvar_set): ditto.
+	* test/ruby/test_io.rb: Skip test_read_buffer_error on cygwin,
+	  because this test repeatedly hangs.
 
-Wed Oct 11 22:21:41 2006  Akinori MUSHA  <knu@iDaemons.org>
+Tue Jun 21 15:35:14 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/digest: Merge from trunk; metadata location changed,
-	  Digest::Base#reset() added, Digest::Base#equal() changed, and
-	  digest/hmac added with some modifications made for ruby 1.8.
+	* LEGAL: Added filenames and copyrights for some files in
+	  enc/trans/JIS.
 
-Tue Oct 10 17:24:12 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
+Tue Jun 21 00:56:47 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* {bcc32,win32,wince}/Makefile.sub (config.status): shouldn't use
-	  copy command instead of install. use -run install.
+	* win32/win32.c (get_special_folder): fix calling convention of
+	  SHGetPathFromIDListEx, which should be WINAPI.  pointed out by
+	  @arton at http://twitter.com/arton/status/744884064277016576
 
-Tue Oct 10 16:49:16 2006  Akinori MUSHA  <knu@iDaemons.org>
+Tue Jun 21 00:22:02 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/digest/digest.c (hexdigest_str_new, bubblebabble_str_new):
-	  Perform StringValue() checks properly.
+	* configure.in, include/ruby/defines.h (RUBY_USE_SETJMPEX):
+	  include setjmpex.h only when using setjmpex() for RUBY_SETJMP.
+	  the header of mingw32 overrides setjmp() by setjmpex().
 
-	* ext/digest/digest.c: Use RSTRING_{PTR,LEN} macros.
+Mon Jun 20 18:39:16 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Tue Oct 10 13:49:53 2006  Akinori MUSHA  <knu@iDaemons.org>
+	* test/ruby/test_io.rb: Skip test_open_fifo_does_not_block_other_threads
+	  on cygwin. Fifos seem to work okay in cygwin, but this test repeatedly
+	  hangs.
 
-	* ext/digest: Merge from trunk; apply all changes since the
-	  initial import, except for the removal of compatibility stub
-	  libraries (md5.rb and sha1.rb).
+Mon Jun 20 13:35:06 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-Mon Oct  9 23:46:29 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* vm.c (invoke_bmethod, invoke_block_from_c_0): revert r52104
+	  partially to avoid "self has wrong type to call super in this
+	  context" errors.
+	  [ruby-core:72724] [Bug #11954]
 
-	* lib/parsedate.rb: documentation patch from Konrad Meyer
-	  <konrad.meyer@gmail.com>.  [ruby-doc:1238]
+Mon Jun 20 12:53:38 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* lib/open3.rb, lib/ping.rb: ditto.
+	* test/rubygems/test_gem_remote_fetcher.rb: OpenSSL::PKey::DH#priv_key=
+	  is not defined when ext/openssl is built with OpenSSL 1.1.0.
+	  https://github.com/rubygems/rubygems/pull/1648
+	  [ruby-core:75225] [Feature #12324]
 
-Mon Oct  9 22:56:12 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Sun Jun 19 21:25:43 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* lib/rexml/encoding.rb (REXML::Encoding::check_encoding): spaces
-	  are allowed around equal sign.  [ruby-core:09032]
+	* ext/openssl/ossl_ocsp.c: Add OCSP::SingleResponse that represents an
+	  OCSP SingleResponse structure. Also add two new methods #responses
+	  and #find_response to OCSP::BasicResponse. A BasicResponse has one or
+	  more SingleResponse. We have OCSP::BasicResponse#status that returns
+	  them as an array of arrays, each containing the content of a
+	  SingleResponse, but this is not useful. When validating an OCSP
+	  response, we need to look into the each SingleResponse and check their
+	  validity but it is not simple. For example, when validating for a
+	  certificate 'cert', the code would be like:
 
-	* lib/rexml/parsers/baseparser.rb (REXML::Parsers::BaseParser): ditto.
-
-Sat Oct  7 23:53:08 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (rb_str_scan): small documentation fix.
-	  [ruby-core:09007]
-
-Sat Oct  7 23:44:33 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* bignum.c (rb_big_rshift): a bug in right shift of negative
-	  bignums.  [ruby-core:09020]
-
-Sat Oct  7 00:27:58 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* class.c (rb_include_module): remove unnecessary check.
-	  [ruby-talk:218402]
-
-Fri Oct  6 04:30:30 2006  Akinori MUSHA  <knu@iDaemons.org>
-
-	* sample/openssl/c_rehash.rb: Use digest/md5 instead of obsolete md5.
-
-Wed Oct  4 18:47:25 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tkextlib/*: bugfix and update
-	  (see ext/tk/ChangeLog.tkextlib).
-
-Wed Oct  4 17:25:14 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_call): check protected visibility based on real self,
-	  not ruby_frame->self.  [ruby-talk:217822]
-
-Wed Oct  4 08:52:30 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/optparse/test_getopts.rb: changed the class name of test case
-	  to get rid of conflict with test_optparse.rb.
-
-Tue Oct  3 23:32:27 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/test/unit/testcase.rb (Test::Unit::TestCase.suite): test name
-	  must be string.  fixed: [ruby-core:08978]
-
-Mon Oct  2 23:47:55 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/test/unit/autorunner.rb (Test::Unit::AutoRunner::COLLECTORS):
-	  base directory should be lower precedence.  fixed: [ruby-dev:29622]
-
-	* lib/test/unit/autorunner.rb (Test::Unit::AutoRunner#options): typo.
-
-	* lib/test/unit/collector/dir.rb (Test::Unit::Collector::Dir#collect_file):
-	  load expanded path.  fixed: [ruby-dev:29621]
-
-Mon Oct  2 15:49:19 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* instruby.rb: batfile should be CRLF'ed.
-
-Mon Oct  2 01:24:26 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk (test-all): separate directory where running test cases
-	  from source tree.
-
-	* lib/test/unit/autorunner.rb (options): added --basedir, --workdir
-	  and --load-path options.
-
-	* lib/test/unit/collector/dir.rb (recursive_collect, collect_file):
-	  base directory support.
-
-Sun Oct  1 23:56:52 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* Makefile.in, common.mk, ext/extmk.rb, win{32,ce}/Makefile.in: keep
-	  LIBRUBY_SO unless need to be removed.
-
-Sun Oct  1 23:12:19 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse.rb (OptionParser#make_switch): pass arguments directly.
-
-Sat Sep 30 15:12:25 2006  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date.rb, lib/date/format.rb: updated based on date2 3.9.4.
-
-Fri Sep 29 12:11:04 2006  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* jcode.rb (succ!): call original succ! if $KCODE == 'n'.
-	  fixed: [ruby-talk:216845]
-
-Fri Sep 29 11:43:40 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (try_func): revert fallback checking undeclared function.
-	  fixed: [ruby-core:08949]
-
-Fri Sep 29 09:56:56 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb: extout is needed for also clean.
-	  fixed: [ruby-core:08944]
-
-	* lib/optparse.rb (OptionParser::Switch#conv_arg): unsplat by
-	  Proc#call if no conversion is given.
-
-Thu Sep 28 23:59:31 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* node.h (struct thread): declare win32_exception_list on cygwin and
-	  win32 regardless if it is implemented.  Provisional fix for
-	  [ruby-core:08917].
-
-Thu Sep 28 20:53:16 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* lib/tmpdir.rb: use return value of getdir.call for length.
-
-Wed Sep 27 01:04:49 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (try_func): check function pointer first and macro next.
-
-	* lib/mkmf.rb (have_type): simplified with typedef and sizeof.
-
-Tue Sep 26 23:57:03 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse.rb (OptionParser#getopts): use strings as key.
-	  fixed: [ruby-dev:29614]
-
-Tue Sep 26 15:31:26 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* {win32,wince}/Makefile.sub (CPP): check predefined value.
-
-Tue Sep 26 07:55:16 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* array.c (rb_ary_shift): should not move memory region if array
-	  body is shared.  a patch from Kent Sibilev <ksruby at gmail.com>.
-	  [ruby-core:08922]
-
-Mon Sep 25 22:26:26 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_path_end): skip root directory.  fixed: [ruby-core:08913]
-
-	* lib/mkmf.rb (init_mkmf): set default $LDFLAGS.  Patch by Michal
-	  Suchanek <hramrach at centrum.cz>.  [ruby-talk:216256]
-
-Mon Sep 25 08:14:43 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* array.c (rb_ary_shift): should clear shifting top element.
-	  [ruby-talk:216055]
-
-	* array.c (rb_ary_shift): avoid creating shared object if array
-	  size is small.
-
-Mon Sep 25 08:11:35 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* random.c (rb_f_rand): RDoc typo fix.  a patch from Frederick
-	  Cheung <fred at 82ask.com>.  [ruby-talk:216047]
-
-Sun Sep 24 22:28:20 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* runruby.rb: extension library scripts moved into common directory.
-
-Sun Sep 24 14:59:50 2006  Tanaka Akira  <akr@fsij.org>
-
-	* node.h (struct thread): ia64 support is broken by sandbox patch.
-
-Sun Sep 24 12:11:16 2006  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date.rb, lib/date/format.rb: updated based on date2 3.9.3.
-
-Sat Sep 23 23:24:57 2006  why the lucky stiff  <why@ruby-lang.org>
-
-	* eval.c (rb_thread_save_context, rb_thread_restore_context):
-	  sandbox hook to save and restore sandbox state.
-
-	* eval.c (thread_no_ensure): added THREAD_NO_ENSURE thread flag.
-
-	* eval.c (rb_thread_kill_bang): Thread#kill! uses the above flag
-	  to circumvent ensure, in order to prevent endless loops.
-	  [ruby-core:08768]
-
-	* eval.c (rb_thread_kill): fix Thread#kill docs, which returns
-	  the thread object in all cases.
-
-	* node.h: expose the rb_jmpbuf_t and rb_thread_t structs, along
-	  with the thread flags.  used by the sandbox extension.
-
-	* ruby.h: extern rb_eThreadError, so sandbox can swap it.
-
-Sat Sep 23 21:34:15 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/cgi.rb (CGI::QueryExtension::read_multipart): CGI content
-	  may be empty.  a patch from Jamis Buck <jamis at 37signals.com>.
-
-Sat Sep 23 08:35:53 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/rdoc/ri/ri_options.rb: prevent NameError.  [ruby-dev:29597]
-
-Sat Sep 23 01:04:20 2006  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date.rb, lib/date/format.rb: updated based on date2 3.9.2.
-
-Fri Sep 22 02:06:26 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* .cvsignore: ignore timestamp files and installed list file.
-
-Fri Sep 22 01:36:34 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* instruby.rb: include FileUtils unconditionally.
-
-Thu Sep 21 22:56:20 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk (no-install): not install rdoc actually.
-
-	* common.mk (install-doc, no-install-doc): use instruby.rb.
-
-	* instruby.rb: rdoc installation.
-
-	* ext/extmk.rb: expand ruby executable names.
-
-Thu Sep 21 13:55:07 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/etc/etc.c (etc_getpwuid): uid integer should be wraped in
-	  uid_t value.  [ruby-core:08897]
-
-	* ext/etc/etc.c (etc_getpwuid): uid_t may be bigger than plain
-	  'int' type.
-
-Wed Sep 20 23:17:41 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk (pre-install-doc): create data directory before install.
-
-	* lib/mkmf.rb (dir_re): fixed typo.
-
-	* lib/mkmf.rb (install_dirs): remove extra slash.
-
-Wed Sep 20 09:53:38 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* {bcc32,win32,wince}/Makefile.sub (INSTALLED_LIST): need to define
-	  this macro to install.
-
-Wed Sep 20 09:43:10 2006  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/imap.rb: allow extra spaces in responses.
-	  Thanks, Tom Soderlund. (backported from HEAD)
-
-Wed Sep 20 09:25:39 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/gdbm/gdbm.c: add RDoc documentation. a patch from Peter
-	  Adolphs <futzilogik at users dot sourceforge dot net>.
-	  [ruby-doc:1223]
-
-Tue Sep 19 01:28:00 2006  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/fileutils.rb: backport from HEAD (rev 1.71).
-
-	* lib/fileutils.rb (FileUtils.cp_r): new option
-	  :remove_destination.
-
-Tue Sep 19 00:42:15 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* object.c (rb_obj_ivar_defined, rb_mod_cvar_defined): new methods,
-	  Kernel#instance_variable_defined? and Module#class_variable_defined?.
-	  [ruby-dev:29587]
-
-	* lib/date/format.rb (Date::Bag#method_missing): use new method,
-	  instance_variable_defined? to check if an instance variable is
-	  defined.  fixed: [ruby-dev:29554]
-	  -- This didn't fix anything.
-
-Sun Sep 17 23:44:58 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/rdoc/rdoc.rb (RDoc::RDoc#document): scan only files modified
-	  after the previous generation.
-
-Sun Sep 17 17:42:13 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk (install-doc): reverted.
-
-	* instruby.rb: stores file name list without destdir prefix.
-
-	* lib/rdoc/generators/ri_generator.rb: do not chdir twice.
-
-Sat Sep 16 23:14:29 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/pty/pty.c (establishShell): remove remaining unused line.
-
-Sat Sep 16 16:40:44 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* Makefile.in, common.in, instruby.rb, ext/extmk.rb, lib/mkmf.rb:
-	  use instruby.rb to install extensions instead of ext/extmk.rb.
-
-	* instruby.rb: store installed list into the file.
-
-	* ext/dbm/extconf.rb: allow multiple candidates for dbm-type.
-
-	* ext/io/wait/extconf.rb: suspicious checking_for.
-
-	* ext/pty/pty.c (establishShell): parent pid is not used.
-
-	* ext/pty/pty.c (freeDevice): not used.
-
-	* ext/pty/pty.c (get_device_once): removed garbage right brace.
-
-	* lib/mkmf.rb (checking_for): improved the messages.
-
-Thu Sep 14 16:11:15 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (rb_str_intern): raise SecurityError only when $SAFE
-	  level is greater than zero.  [ruby-core:08862]
-
-	* parse.y (rb_interned_p): new function to check if a string is
-	  already interned.
-
-	* object.c (str_to_id): use rb_str_intern().
-
-Wed Sep 13 18:43:05 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* README.EXT: English adjustment.  [ruby-core:08851] and
-	  [ruby-core:08852]
-
-Wed Sep 13 18:25:18 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* misc/ruby-mode.el (ruby-parse-partial): better here-doc support.
-	  a patch from Marshall T. Vandegrift <llasram at gmail.com>.
-	  [ruby-core:08804]
-
-Wed Sep 13 16:43:36 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (rb_str_intern): prohibit interning tainted string.
-
-Wed Sep 13 01:14:21 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse.rb (OptionParser#getopts): works with pre-registered
-	  options.  [ruby-core:08826]
-
-Sun Sep 10 20:27:13 2006  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date.rb, lib/date/format.rb: updated based on date2 3.9.1.
-
-Tue Jan 10 09:18:03 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (stack_extend): fixed prototype.
-
-	* eval.c (rb_require_safe): prevent extension from loading twice.
-	  fixed: [ruby-dev:29523]
-
-Sat Sep  9 23:50:38 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* bignum.c (rb_big_mul0): bignum multiplication without
-	  normalization.
-
-	* bignum.c (rb_big_pow): use rb_big_mul0().  [ruby-dev:29547]
-
-Sat Sep  9 14:08:38 2006  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/test/unit/testcase.rb (Test::Unit::TestCase#run): Rescue
-	  Exception in Test::Unit::TestCase#run.  [ruby-core:08783]
-
-Sat Sep  9 04:55:59 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/pstore.rb: open all in binary mode, and get rid of the quirk of
-	  msvcrt.  fixed: [ruby-dev:29518]
-
-Sat Sep  9 04:54:42 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* Makefile.in, win32/Makefile.sub (MINIRUBY): append MINIRUBYOPT.
-
-	* mkconfig.rb, ext/extmk.rb, lib/mkmf.rb, win32/mkexports.rb: suppress
-	  warnings with $VERBOSE.
-
-	* ext/extmk.rb: Proc#call does not pass the block in 1.8.
-
-	* win32/resource.rb: add more info.
-
-Fri Sep  8 10:03:59 2006  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/cookie.rb (WEBrick::Cookie.parse_set_cookies): new
-	  method to parse multiple cookies per Set-Cookie header.
-	  Thanks to Aaron Patterson <aaron_patterson at speakeasy.net>.
-	  [ruby-core:08802]
-
-Fri Sep  8 08:59:30 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/Makefile.sub, win32/configure.bat win32/setup.mak: program
-	  name transform.
-
-Fri Sep  8 01:33:08 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ruby.h (RSTRING_PTR): add migration macro.
-
-	* ruby.h (RARRAY_PTR): ditto.
-
-Thu Sep  7 23:27:05 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (path_check_0, fpath_check): disable path check on cygwin.
-	  [ruby-talk:213074]
-
-Wed Sep 06 12:05:19 2006  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/nkf/lib/kconv.rb (Kconv::RegexpEucjp): fix regexp for euc-jp
-	  [ruby-dev:29344]
-
-	* ext/nkf/lib/kconv.rb (Kconv::toeuc): remove -m0 [ruby-dev:29505]
-
-Tue Sep  5 06:47:22 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* time.c (time_to_s): variable declaration after an execution
-	  statement.
-
-Tue Sep  5 05:56:51 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* numeric.c (flo_hash): improve collision.  fixed: [ruby-dev:29352]
-
-Tue Sep  5 05:49:41 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (path_check_0): check if sticky bit is set on parent
-	  directories for executable path.  fixed: [ruby-dev:29415]
-
-Tue Sep  5 05:03:46 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* numeric.c (fix_plus): addition in Fixnum will never overflow
-	  long.  a patch from Ondrej Bilka <neleai at seznam.cz>.
-	  [ruby-core:08794]
-
-	* numeric.c (fix_minus): ditto.
-
-	* bignum.c (rb_big_pow): eagerly truncate resulting bignum.
-	  [ruby-core:08794]
-
-Mon Sep  4 23:15:34 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* time.c (time_to_s): make it conform to RFC2822 date format.
-	  [ruby-dev:29467]
-
-Mon Sep  4 21:43:57 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/dbm/extconf.rb: create makefile according to the result of check
-	  for dbm header.  fixed: [ruby-dev:29445]
-
-Mon Sep  4 21:42:35 2006  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date.rb, lib/date/format.rb: updated based on date2 3.9.
-
-Mon Sep  4 21:14:20 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* time.c (time_strftime): include nul character.  fixed: [ruby-dev:29422]
-
-Mon Sep  4 16:29:33 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/cgi.rb (CGI::out): specify -m0 -x option for nkf.
-	  [ruby-dev:29284]
-
-Mon Sep  4 16:13:23 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (pipe_open): command name should not contain null bytes.
-	  [ruby-dev:29421]
-
-	* process.c (proc_spawn): ditto.
-
-	* process.c (proc_spawn_n): ditto.
-
-	* process.c (rb_f_system): ditto.
-
-Sun Sep  3 15:32:44 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb: get rid of nil.to_s.
-
-Sun Sep  3 06:24:38 2006  Tanaka Akira  <akr@fsij.org>
-
-	* ext/socket/socket.c (ruby_connect): sockerrlen should be socklen_t.
-
-Sun Sep  3 04:40:42 2006  Tanaka Akira  <akr@fsij.org>
-
-	* ext/socket/extconf.rb: check arpa/inet.h for ntohs.
-
-	* ext/socket/socket.c: include arpa/inet.h if available.
-
-Sun Sep  3 02:34:55 2006  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/unix.rb (DRbUNIXSocket#close): don't get path if client mode.
-	  [ruby-dev:29417]
-
-Sun Sep  3 01:45:17 2006  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/acl.rb (ACLEntry#initialize): examine whether '*' is
-	  included before IPAddr.new. [ruby-dev:29406]
-
-Sat Sep  2 13:23:01 2006  Tanaka Akira  <akr@fsij.org>
-
-	* common.mk (ia64.o): use the compiler driver to assemble ia64.s
-	  to use appropriate ABI.
-
-Sat Sep  2 03:36:22 2006  Tanaka Akira  <akr@fsij.org>
-
-	* common.mk, configure.in, defines.h, eval.c, gc.c, main.c,
-	  numeric.c, ruby.h, ia64.s: backport IA64 HP-UX support.
-
-Fri Sep  1 13:52:57 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/font.rb: TkFont#current_configinfo() doesn't work
-	  on Tcl/Tk8.x.
-
-Thu Aug 31 12:46:55 2006  why the lucky stiff  <why@ruby-lang.org>
-
-	* eval.c (ruby_init): rename top_cref to ruby_top_cref and export,
-	  along with ruby_cref, for use by the sandbox. [ruby-core:08762]
-
-	* node.h: ditto.
-
-Tue Aug 29 19:10:10 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* hash.c (rb_hash_s_create): fixed memory leak, based on the patch
-	  by Kent Sibilev <ksruby at gmail.com>.  fixed: [ruby-talk:211233]
-
-Mon Aug 28 11:36:02 2006  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/parsers/parse_rb.rb: Fix typo.  Submitted by
-	  <calamitas at gmail.com>.  [ruby-core:08724]
-
-Mon Aug 28 07:53:44 2006  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/ri/ri_formatter.rb: Don't unescape HTML in HtmlFormatter.
-	  Submitted by Kent Sibilev <ksruby at gmail.com>.  [ruby-core:08392].
-
-Mon Aug 28 07:25:45 2006  Eric Hodel  <drbrain@segment7.net>
-
-	* file.c (File#size?): Fix documentation submitted by Rick Ohnemus.
-	  ruby-Bugs-5529.  [ruby-core:08725]
-
-Sat Aug 26 08:07:13 2006  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date.rb, lib/date/format.rb: updated based on date2 3.8.2.
-
-Fri Aug 25 22:32:04 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/rexml/source.rb (REXML::IOSource#initialize): encoding have to
-	  be set with the accessor.  fixed: [ruby-list:42737]
-
-Fri Aug 25 17:15:17 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* stable version 1.8.5 released.
-
-Fri Aug 25 17:02:06 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* gc.c (gc_sweep): typo fixed.
-
-Tue Aug 22 18:47:51 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/rdoc/parsers/parse_c.rb (RDoc::C_Parser::handle_method):
-	  rdoc documents C module methods as instance methods. a patch in
-	  [ruby-core:08536].
-
-Sat Aug 19 14:15:02 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/Makefile.sub (config.status): include winsock2.h instead of
-	  winsock.h when --with-winsock2 is specified.
-	  fixed: [ruby-dev:29296]
-
-Sat Aug 19 11:28:08 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_file_s_rename): use errno if set properly.
-	  fixed: [ruby-dev:29293]
-
-Sat Aug 19 11:09:23 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* parse.y (then): remove semicolon warning.  [ruby-dev:29299]
-
-Thu Aug 17 19:15:16 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_stat_[rRwWxX]): check for super user.
-	  fixed: [ruby-core:08616]
-
-Thu Aug 17 14:47:06 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb: added rdoc by Daniel Berger.  [ruby-core:08177]
-
-Thu Aug 17 00:39:05 2006  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/rinda/ring.rb (do_reply): Fix for RingServer fails to find a
-	  TupleSpace when TupleSpace resides in the same ruby process with
-	  RingServer. a patch from Kent Sibilev. [ruby-core:08453]
-
-Wed Aug 16 11:45:36 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* process.c (proc_setuid, proc_setgid, proc_seteuid, proc_setegid):
-	  get rid of bogus implementations on Mac OS X.
-
-Tue Aug 15 19:10:18 2006  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/parsers/parse_c.rb (RDoc::C_Parser#find_class_comment): Fix
-	  broken class-level documentation.
-
-Wed Aug 16 11:09:26 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby.c (set_arg0): fill argv other than the first with an empty
-	  string instead of NULL.
-
-Wed Aug 16 11:08:00 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.h: removed an excess macro.  fixed: [ruby-dev:29258]
-
-Tue Aug  8 23:49:06 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/irb/extend-command.rb (IRB::ExtendCommandBundle): pacify
-	  RDoc.  a patch from Eric Hodel <drbrain at segment7.net>.
-	  [ruby-core:08522]
-
-Tue Aug  8 11:32:54 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* Makefile.in, common.mk, configure.in: fix for platforms without
-	  rm. patches from Yutaka kanemoto <kinpoco at gmail.com>.
-	  [ruby-dev:29215]
-
-Mon Aug  7 17:56:59 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/bigdecimal/bigdecimal.c, ext/digest/rmd160/rmd160ossl.c,
-	  ext/digest/sha1/sha1ossl.c, ext/readline/readline.c: move
-	  incluion of config.h to pacify AIX.  a patch from Yutaka
-	  Kanemoto <kinpoco at gmail.com>.  [ruby-dev:29197]
-
-Mon Aug  7 15:55:08 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/syck/syck.c (syck_move_tokens): should avoid negative
-	  memmove.  [ruby-list:42625]
-
-Mon Aug  7 14:37:48 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* configure.in, common.mk: AIX link issue.  a patch from Yutaka
-	  Kanemoto <kinpoco at gmail.com>.  [ruby-dev:29190]
-
-	* ext/socket/socket.c: AIX socket support.  [ruby-dev:29190]
-
-Mon Aug  7 12:05:28 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* dln.c, eval.c, gc.c, regex.c, ruby.h: shut up AIX alloca
-	  warning.  a patch from Yutaka Kanemoto <kinpoco at gmail.com>.
-	  [ruby-dev:29191]
-
-Sun Aug  6 20:40:41 2006  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date/format.rb (str[fp]time): %[EO]U didn't denote %U.
-
-Sat Aug  5 17:07:43 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* parse.y (top_local_setup): local_vars[-1] should point
-	  ruby_scope itself to protect local_tbl from garbage collection.
-	  [ruby-dev:29049]
-
-Sat Aug  5 13:54:03 2006  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date/format.rb (str[fp]time): "%\n" means "\n".
-
-Fri Aug  4 15:21:00 2006  Eric Hodel  <drbrain@segment7.net>
-
-	* lib: Merge RDoc and .document from HEAD.
-	* lib/drb/ssl.rb: Close socket on SSLError [ruby-core:7197]
-
-Fri Aug  4 19:13:41 2006  Keiju Ishitsuka  <keiju@ruby-lang.org>
-
-	* lib/irb/{init.rb,ruby-lex.rb,slex.rb}: can't input '\c' for
-	  [ruby-core: 7122].
-
-Fri Aug  4 14:02:14 2006  James Edward Gray II  <james@grayproductions.net>
-
-	* lib/date/format.rb (__strptime, strftime): allow multi-line patterns
-	  in Date#strftime the same as Time#strftime accepts.
-	  fixed: [ruby-core:08466]
-
-Fri Aug  4 13:56:51 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* pack.c (pack_pack): check argument overrun for 'P'.  based on a
-	  patch by rucila <rucila at yahoo.cojp>.  fixed: [ruby-dev:29182]
-
-Tue Aug  1 17:44:03 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.c (init_stdhandle): assign standard file handles.
-
-Tue Aug  1 12:24:58 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (Init_Binding): fix old commit miss.
-
-Mon Jul 31 17:08:20 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (exit_handler): new function; release winsock and
-	  environment work area.
-
-	* win32/win32.c (NTInitialize): setup exit_handler.
-
-	* win32/win32.c (StartSockets): use exit_handler.
-
-	* win32/win32.c (rb_w32_getenv): use GetEnvironmentStrings() instead
-	  of GetEnvironmentVariable(), because the latter cannot distinguish
-	  wheather a null environment variable exists or not.
-	  fixed: [ruby-talk:205123]
-
-Mon Jul 31 16:15:13 2006  Tanaka Akira  <akr@fsij.org>
-
-	* test/ruby/test_process.rb (TestProcess#test_rlimit_nofile):
-	  setrlimit may fail with EINVAL.
-	  reported by MIYAMUKO Katsuyuki.  [ruby-dev:29174]
-
-Mon Jul 31 13:38:22 2006  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/httprequest.rb (WEBrick::HTTPReuqest#parse_uri): improve
-	  for the value of IPv6 address in the Host: header field.
-
-Mon Jul 31 09:22:12 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ruby.h: use ifdef (or defined) for macro constants that may or
-	  may not be defined to shut up gcc's -Wundef warnings.
-	  [ruby-core:08447]
-
-Sun Jul 30 23:26:22 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_call0): trace call/return of method defined from block.
-	  fixed: [ruby-core:08329]
-
-	* eval.c (rb_trap_eval): make the current thread runnable to deal with
-	  exceptions which occurred within the trap.  fixed: [ruby-dev:27729]
-
-	* lib/cgi/session.rb, lib/cgi/session/pstore.rb: suppress warnings.
-	  fixed: [ruby-talk:204896]
-
-Sat Jul 29 06:12:06 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/multi-tk.rb: freeze ip_name for security reason.
-
-Sat Jul 29 01:23:52 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/logger.rb: improves the amount of documentation that Rdoc
-	  picks up when processing logger.rb by moving the require
-	  statement back before the comment block.  a patch from Hugh
-	  Sasse <hgs at dmu.ac.uk>.  [ruby-core:08422]
-
-Thu Jul 27 22:21:52 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* time.c (time_to_s): fixed format mismatch.
-
-Thu Jul 27 21:19:54 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* math.c (domain_check): a new function to check domain error
-	  explicitly for systems that return NaN like FreeBSD.
-	  [ruby-core:07019]
-
-	* math.c (math_acos, math_asin, math_acosh, math_atanh, math_log,
-	  math_log10, math_sqrt): use domain_check().
-
-	* math.c (math_sqrt): fix documentation flaw.
-
-Thu Jul 27 18:12:12 2006  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* time.c: need to declare time_utc_offset.
-
-Thu Jul 27 17:01:01 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (io_close): always calls "close" method of the receiver.
-	  [ruby-core:6911] [ruby-core:8112]
-
-Thu Jul 27 16:49:01 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* time.c (time_to_s): use +0900 style timezone string for local time.
-	  [ruby-dev:29143]
-
-Thu Jul 27 16:41:15 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/openssl/ossl.h: move <ruby.h> inclusion point to shut up
-	  Solaris compiler.  [ruby-core:08114]
-
-Wed Jul 26 22:20:59 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* configure.in: add support for as and ASFLAGS.  [ruby-dev:29138]
-
-Wed Jul 26 22:13:45 2006  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/net/http.rb: sync with HEAD (rev 1.132).
-
-	* lib/net/http.rb (Net::HTTP#post, request_post, request): should
-	  set Content-Type: x-www-form-urlencoded by default.
-
-	* lib/net/http.rb (Net::HTTPHeader#content_type): should return
-	  nil when there's no Content-Type.
-
-	* lib/net/http.rb (Net::HTTPHeader#sub_type): should return nil
-	  when there's no sub Content-Type (e.g. "Content-Type: text").
-
-	* lib/net/http.rb (Net::HTTPHeader#type_params): wrongly failed
-	  when there's no Content-Type.
-
-Wed Jul 26 18:35:38 2006  Minero Aoki  <aamine@loveruby.net>
-
-	* ext/strscan/strscan.c: sync with HEAD (rev 1.25).
-
-	* ext/strscan/strscan.c (strscan_do_scan):
-	  StringScanner.new("").scan(//) should return "". [ruby-Bugs:4361]
-
-Wed Jul 26 18:14:19 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/pty/pty.c (getDevice): retry once after GC on failure.
-	  [ruby-core:08282]
-
-Wed Jul 26 17:28:16 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* sprintf.c (rb_f_sprintf): prepend ".." to %u for negative bignum,
-	  but not "-".  fixed: [ruby-core:08167]
-
-Wed Jul 26 16:39:07 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (rb_str_scan): add string modification check.
-	  [ruby-core:7216]
-
-Wed Jul 26 16:06:03 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/cgi.rb (CGI::QueryExtension::read_multipart): check
-	  multipart boundary end.  a patch from Fujioka <fuj at rabbix.jp>
-	  [ruby-dev:28470]
-
-Wed Jul 26 01:02:59 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in: suppress warnings by automake 1.8 or later.
-
-Tue Jul 25 00:30:06 2006  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/prettyprint.rb: RD to RDoc conversion by Hugh Sasse.
-
-Tue Jul 25 14:49:51 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* lib/mkmf.rb (configuration): typo.
-
-Tue Jul 25 13:14:32 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* process.c (rb_proc_times): rename hz to hertz to avoid name
-	  crash on AIX.  [ruby-dev:29126]
-
-Mon Jul 24 22:03:40 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (backtrace): skip frames successive on node and method name.
-
-Mon Jul 24 17:55:55 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* process.c (rb_f_system): add security check.  [ruby-talk:202947]
-
-	* process.c (rb_f_system): move signal right before fork to avoid
-	  signal handler intervention.
-
-Mon Jul 24 15:51:52 2006  Tanaka Akira  <akr@fsij.org>
-
-	* ext/readline/readline.c (readline_readline): rl_deprep_term_function
-	  may be NULL with libedit.  reported by Ryan Davis.  [ruby-dev:29070]
-
-Mon Jul 24 15:19:55 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_call0): revert last change.  [ruby-dev:29112]
-	  [ruby-core:08374]
-
-Sun Jul 23 22:59:49 2006  Tanaka Akira  <akr@fsij.org>
-
-	* test/socket/test_unix.rb: disabled on cygwin.
-	  reported by Kouhei Yanagita.  [ruby-dev:29080]
-
-Fri Jul 21 21:21:08 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_call0): include funcalled methods in caller list.
-	  fixed: [ruby-core:08290]
-
-Fri Jul 21 12:11:00 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb, lib/mkmf.rb (with_destdir): remove drive letter before
-	  prepending destdir on DOSISH.
-
-Thu Jul 20 15:07:14 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ruby.h: export classes/modules to implement sandbox.
-	  [ruby-core:08283]
-
-Thu Jul 20 00:06:29 2006  Keiju Ishitsuka  <keiju@ishitsuka.com>
-
-	* lib/irb/completion.rb: support for completion of numeric
-	  number. [ruby-dev: 29038]
-
-Wed Jul 19 23:53:05 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/parser.rb, lib/rss/utils.rb: added documents.
-
-Tue Jul 18 22:10:13 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* process.c (rb_f_system): block SIGCHLD during the process
-	  execution, like glibc system(3) does.  [ruby-talk:202361]
-
-Tue Jul 18 23:12:14 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (open_ifs_socket): should not use plain malloc.
-
-	* win32/win32.c (rb_w32_opendir): should not use plain realloc.
-
-Tue Jul 18 18:05:49 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* test/ruby/test_float.rb (TestFloat::test_strtod): update test to
-	  conform strtod change.
-
-Tue Jul 18 15:49:42 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* pack.c (pack_unpack): propagate association array to copied
-	  string.  [ruby-core:08223]
-
-	* pack.c (pack_unpack): return referenced string itself if it has
-	  same length as specified.  a patch from <nobu at ruby-lang.org>
-	  in [ruby-core:08225].
-
-	* pack.c (pack_pack): taint 'p' packed strings.
-
-Tue Jul 18 14:03:02 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/webrick/httpserver.rb (WEBrick::HTTPServer::unmount): remove
-	  inpect argument from sprintf.  [ruby-dev:29039]
-
-Tue Jul 18 10:53:37 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* object.c (rb_cstr_to_dbl): limit out-of-range message.
-
-	* util.c (ruby_strtod): return end pointer even if ERANGE occurred.
-	  fixed: [ruby-dev:29041]
-
-Mon Jul 18 00:43:05 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* util.c (ruby_strtod): stop at dot not followed by digits.
-	  fixed: [ruby-dev:29035]
-
-Tue Jul 18 00:01:27 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb: remove LIBRUBY_SO if static linked extensions exist.
-
-Mon Jul 17 23:30:46 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (rb_cv_msvcrt): defaulted to msvcrt.  Workaround for a
-	  bug of cygwin 1.5.20.
-
-Mon Jul 17 13:43:05 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* pack.c (define_swapx): should not use plain malloc.
-
-Mon Jul 17 12:58:41 2006  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* configure.in: should use ac_cv_lib_dl_dlopen=no on MinGW.
-
-Sat Jul 15 23:50:12 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_require_safe): wait for another thread requiring the same
-	  feature.  fixed: [ruby-core:08229]
-
-Sat Jul 15 01:27:13 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dir.c (has_magic): glob names contain alphabets to enable case fold
-	  search also for directories.  fixed: [ruby-talk:201917]
-
-Sat Jul 15 01:09:22 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* st.c (malloc): use xmalloc/xcalloc instead of plain
-	  malloc/calloc, to detect memory allocation failure.  see
-	  <http://www.nongnu.org/failmalloc/>.
-
-	* gc.c (rb_memerror): should not raise empty nomem_error.
-
-Fri Jul 14 13:08:13 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: add methods for new features of latest Tcl/Tk8.5.
-
-	* ext/tk/lib/tk/namespace.rb: ditto.
-
-Fri Jul 14 02:30:12 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/monitor.rb: document patch from Hugh Sasse <hgs at dmu.ac.uk>.
-	  [ruby-core:08205]
-
-Fri Jul 14 01:09:46 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* parse.y (then): error in warning action.
-
-Fri Jul 14 00:10:15 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* array.c (rb_ary_pop): may cause realloc oscillation.  a patch
-	  from MORITA Naoyuki <mlgetter at kidou.sakura.ne.jp>.
-	  [ruby-dev:29028]
-
-Thu Jul 13 22:23:56 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/composite.rb: improve handling of the classname on the
-	  option database for the widget class which includes TkComposite.
-
-Thu Jul 13 20:32:19 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/parser.rb: updated documents by a patch from
-	  Hugh Sasse <hgs at dmu.ac.uk>. [ruby-core:8194]
-
-Wed Jul 12 13:54:09 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* parse.y (then): we'd like to reserve colon here for the future.
-	  warning added.
-
-Tue Jul 11 20:58:18 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ruby.h: export rb_cMethod.  [ruby-talk:201259]
-
-Tue Jul 11 19:13:33 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/multi-tk.rb: remove restriction on the class of
-	  pseudo-toplevel.
-
-Tue Jul 11 18:00:57 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/multi-tk.rb: security fix.
-
-Tue Jul 11 17:33:39 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* string.c (rb_str_dump): need to extend len for \b.
-
-Mon Jul 10 22:00:00 2006  Shigeo Kobayashi  <shigek@ruby-lang.org>
-
-	* ext/bigdecimal/bigdecimal.c: Allows '_' to appear within
-	  digits.  [ruby-dev:28872]
-
-	* ext/bigdecimal/lib/bigdecimal/util.rb: Bug in to_r reported by
-	  [ruby-list:42533] fixed.
-
-Mon Jul 10 19:22:19 2006  Tanaka Akira  <akr@fsij.org>
-
-	* gc.c (gc_sweep): expand heap earlier.
-	  reported by MORITA Naoyuki.  [ruby-dev:28960]
-
-Mon Jul 10 18:59:34 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/font.rb: sorry. mistaken to patch.
-
-Mon Jul 10 18:46:52 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/tcltklib.c: make SEGV risk lower at exit.
-
-	* ext/tk/lib/tk.rb: ditto.
-
-	* ext/tk/lib/multi-tk.rb: fail to call function-style methods on slave
-	  interpreters. The strategy (MultiTkIp_PseudoToplevel_Evaluable) to
-	  fix the problem is a little tricky. You may have to take care of
-	  conflicting with it.
-
-	* ext/tk/lib/tk.rb: a little change for the pseudo-toplevel strategy.
-
-	* ext/tk/lib/tk/font.rb: ditto.
-
-	* ext/tk/lib/tk/msgcat.rb: ditto.
-
-	* ext/tk/lib/tkextlib/itk/incr_tk.rb: ditto.
-
-	* ext/tk/sample/demos-en/widget: fail to call function-style methods
-	  on sample scripts. To fix it, a strategy which similar to the way
-	  on MultiTiIp is used. Please take care when re-write and re-run a
-	  demo script on the Widget-Demo code viewer.
-
-	* ext/tk/sample/demos-jp/widget: ditto.
-
-Mon Jul 10 13:58:40 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* signal.c (ruby_nativethread_signal, posix_nativethread_signal,
-	  sigsend_to_ruby_thread, install_nativethread_sighandler):
-	  nativethread-support on signal handler. RE-backport from 1.9.
-
-	* ruby.h (HAVE_NATIVETHREAD_KILL): ditto.
-
-	* eval.c (ruby_native_thread_kill): ditto.
-
-Mon Jul 10 10:54:14 2006  Ryan Davis  <ryand@zenspider.com>
-
-	* lib/rdoc/parsers/parse_f95.rb: massive overhaul from Yasuhiro
-	  Morikawa including new file suffixes, function support, public
-	  variables and constants, derived-types, defined operators and
-	  assignments, namelists, and subroutine and function
-	  arguments. Truly massive.
-
-	* lib/rdoc/diagram.rb: diagrams are now cached.
-
-	* lib/irb/completion.rb: fixed a crasher when completing against
-	  an unnamed class/module.
-
-	* lib/rdoc/parsers/parse_c.rb: private comment (--/++) support in
-	  C-file rdoc.
-
-	* lib/debug.rb: minor clarification in help.
-
-	* lib/pp.rb: minor clarification on exception.
-
-Mon Jul 10 09:29:12 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_clear_cache_for_undef): clear entries for included
-	  module.  fixed: [ruby-core:08180]
-
-Mon Jul 10 01:48:38 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* st.h (st_data_t): use pointer sized integer for st_data_t.
-	  [ruby-dev:28988]
-
-Sun Jul  9 18:06:47 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (try_constant): fix for value 1 at cross compiling.
-
-	* lib/mkmf.rb (create_makefile): prevent substitution of macro
-	  definition.  fixed: http://www.yotabanana.com/lab/20060624.html#p02
-
-Sun Jul  9 00:54:34 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (next_jump): deal with destination of next.
-	  fixed: [ruby-core:08169]
-
-Fri Jul  7 00:38:49 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* hash.c (rb_hash_default): should not call default procedure if
-	  no key is given.  [ruby-list:42541]
-
-Fri Jul  7 00:29:10 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* time.c (time_mload): a patch from Daniel Berger
-	  <Daniel.Berger at qwest.com>.  [ruby-core:08128]
-
-Thu Jul  6 22:21:57 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* process.c (rb_proc_times): use sysconf(_SC_CLK_TCK) value prior to
-	  HZ and CLK_TCK.  fixed: [ruby-talk:200293]
-
-Thu Jul  6 22:17:21 2006  Minero Aoki  <aamine@loveruby.net>
-
-	* ext/racc/cparse/cparse.c: sync with original code, rev 1.8.
-
-	* ext/racc/cparse/cparse.c: should mark CparseParams objects.
-
-	* lib/racc/parser.rb: sync with original code, rev 1.8.
-
-	* lib/racc/parser.rb: update coding style.
-
-Mon Jul  3 19:04:38 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/tcltklib.c (ip_make_menu_embeddable): help to make a menu
-	  widget embeddable (pack, grid, and so on) like as a general widget.
-	  However, an embeddable menu may require to be definied some event
-	  bindings for general use.
-
-	* ext/tk/lib/tk/event.rb: [bug fix] Tk.callback_break and
-	  Tk.callback_continue don't work on MultiTkIp.
-
-	* ext/tk/lib/multi-tk.rb: ditto.
-
-	* ext/tk/lib/tk.rb: lack of Tk.callback_return.
-
-	* ext/tk/lib/tk/menu.rb: improve creating clone menus.
-
-Mon Jul  3 14:42:06 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/etc/extconf.rb (PW_UID2VAL, PW_GID2VAL): defaulted to conversion
-	  from int, and sys/types.h needs to be included before grp.h.
-	  fixed: [ruby-dev:28938]
-
-Mon Jul  3 01:14:15 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (rb_str_inspect): encode \b (\010) for escape.
-	  [ruby-dev:28927]
-
-	* string.c (rb_str_dump): ditto.
-
-Sun Jul  2 19:17:56 2006  Minero Aoki  <aamine@loveruby.net>
-
-	* ext/racc/cparse/cparse.c: sync with original code (rev 1.7).
-
-	* ext/racc/cparse/cparse.c: use rb_catch instead of rb_iterate.
-	  Giving a block to a Ruby-level method by rb_iterate is obsolete on
-	  Ruby 1.9.  Note that current cparse.c still includes one
-	  rb_iterate call on Ruby 1.8, but it is not a problem (at least
-	  just now).
-
-Sat Jul  1 15:15:49 2006  Tanaka Akira  <akr@m17n.org>
-
-	* test/socket/test_nonblock.rb: add timeout to send/receive
-	  an empty UDP packet.
-	  [ruby-dev:28820]
-
-Fri Jun 30 23:46:23 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* configure.in: should test isinf for Solaris with GCC compiler.
-	  a patch from <ville.mattila at stonesoft.com>.  [ruby-core:07791]
-
-	* configure.in: -shared patch from Andrew Morrow
-	  <andrew.c.morrow at gmail.com>.  [ruby-core:08100]
-
-Thu Jun 29 18:58:51 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/bigdecimal/bigdecimal.c (BigDecimal_version): fix patch
-	  failure.
-
-Thu Jun 29 18:00:51 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/bigdecimal/bigdecimal.c: add RDoc document.  a patch from
-	  mathew <meta at pobox.com>.   [ruby-core:07050]
-
-Wed Jun 28 15:47:14 2006  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/optparse.rb: RDoc patch from Robin Stocker <robin@nibor.org>
-	  [ruby-core:08087]
-
-Wed Jun 28 19:04:34 2006  Tanaka Akira  <akr@m17n.org>
-
-	* test/socket/test_unix.rb: test_seqpacket_pair removed.
-	  [ruby-dev:28846]
-
-Tue Jun 27 23:03:49 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c: RDoc update for =~ method.  a patch from Alex Young
-	  <alex at blackkettle.org>.  [ruby-core:08068]
-
-Tue Jun 27 22:47:18 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/tcltklib.c: forgot to update TCLTKLIB_RELEASE_DATE.
-
-	* ext/tk/lib/tk.rb (tk_tcl2ruby): [bug fix] sometimes fail to convert
-	  a tcl string to a ruby object if the tcl string includes "\n".
-
-Tue Jun 27 16:04:05 2006  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* win32/win32.h: define isascii on MinGW for msvcrt compatibility.
-
-	* configure.in: set ac_cv_header_sys_time_h=no on MinGW
-	  for msvcrt compatibility.
-
-Tue Jun 27 11:36:02 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/etc/etc.c (setup_passwd, setup_group): allow bignum uid, gid and
-	  so on.  [ruby-talk:199102]
-
-Mon Jun 26 13:37:27 2006  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc: Merge from HEAD.
-	  Add options to limit the ri search path.
-
-Tue Jun 27 00:54:08 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* util.c (powersOf10): constified.
-
-Mon Jun 26 18:37:44 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/tcltklib.c (ip_delete): fix SEGV when a slave-ip is
-	  deleted on callback.
-
-Mon Jun 26 10:47:42 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (pipe_open): avoid closing uninitialized file descriptors.
-	  a patch from <tommy at tmtm.org> [ruby-dev:28600]
-
-Mon Jun 26 09:56:22 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.[ch] (rb_w32_send, rb_w32_sendto): constified.
-
-Sun Jun 25 23:02:12 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* Makefile.in, mkconfig.rb: catch-up for latest autoconf.
-
-Sat Jun 24 06:35:00 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* signal.c: revert last change.
-
-	* ruby.h: ditto.
-
-	* eval.c: ditto.
-
-Thu Jun 22 11:52:02 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/net/http.rb (Net::HTTPResponse): duplicated error 501;
-	  HTTPInternalServerError should be error 500.  [ruby-core:08037]
-
-Thu Jun 22 05:15:58 2006  Tanaka Akira  <akr@m17n.org>
-
-	* ext/socket/socket.c (sock_s_socketpair): try GC only once.
-	  [ruby-dev:28778]
-
-Wed Jun 21 21:28:32 2006  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date.rb (jd_to_commercial): now works fine even if in
-	  mathn-ized context.
-
-Wed Jun 21 17:32:31 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* signal.c (ruby_nativethread_signal, posix_nativethread_signal,
-	  sigsend_to_ruby_thread, install_nativethread_sighandler):
-	  nativethread-support on signal handler (backport from 1.9).
-
-	* ruby.h (HAVE_NATIVETHREAD_KILL): ditto.
-
-	* eval.c (ruby_native_thread_kill): ditto.
-
-Wed Jun 21 08:39:54 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/xmlrpc/create.rb (XMLRPC::Create::conv2value): merge Date
-	  and Time processing.  [ruby-core:08033]
-
-Wed Jun 21 01:40:25 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (yylex, reswords): modifier token is no longer returned in
-	  fname state.  [ruby-dev:28775]
-
-Wed Jun 21 01:12:46 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb: RSS::Element.def_corresponded_attr_writer
-	  supported date type.
-
-Tue Jun 20 22:08:36 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* test/rss/test_parser.rb: split parser tests into ...
-	* test/rss/test_parser_1.0.rb: ... RSS 1.0 parsing tests and ...
-	* test/rss/test_parser_2.0.rb: ... RSS 2.0 parsing tests.
-
-Tue Jun 20 21:19:06 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb: provided default RSS::Element#children.
-
-	* lib/rss/0.9.rb: used default RSS::Element#children.
-	* lib/rss/1.0.rb: ditto.
-	* lib/rss/2.0.rb: ditto.
-	* lib/rss/taxonomy.rb: ditto.
-
-Tue Jun 20 21:04:33 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb: provided default RSS::Element#_tags.
-
-	* lib/rss/0.9.rb: used default RSS::Element#_tags.
-	* lib/rss/1.0.rb: ditto.
-	* lib/rss/2.0.rb: ditto.
-	* lib/rss/image.rb: ditto.
-	* lib/rss/taxonomy.rb: ditto.
-
-Tue Jun 20 20:47:07 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb: hide RSS::Element.install_model.
-	  (RSS::Element.install_have_child_element,
-	   RSS::Element.install_have_children_element,
-	   RSS::Element.install_text_element,
-	   RSS::Element.install_date_element): call
-	  RSS::Element.install_model internally.
-
-	* lib/rss/0.9.rb: followed new API.
-	* lib/rss/1.0.rb: ditto.
-	* lib/rss/2.0.rb: ditto.
-	* lib/rss/content.rb: ditto.
-	* lib/rss/dublincore.rb: ditto.
-	* lib/rss/image.rb: ditto.
-	* lib/rss/syndication.rb: ditto.
-	* lib/rss/taxonomy.rb: ditto.
-	* lib/rss/trackback.rb: ditto.
-
-Tue Jun 20 20:18:05 2006  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/extconf.rb: add check for OBJ_NAME_do_all_sorted.
-
-	* ext/openssl/ossl_cipher.c (ossl_s_ciphers): new method
-	  OpenSSL::Cipher.ciphers. it returns all the cipher names.
-
-	* ext/openssl/lib/openssl/cipher.rb:
-	  - add constants AES128, AES192, AES256. [ruby-dev:28610]
-	  - reimplement without eval()
-
-	* ext/openssl/lib/openssl/digest.rb: reimplement without eval().
-
-	* test/openssl/test_cipher.rb, test_digest: fix about reimplemented
-	  features.
-
-	* sample/openssl/cipher.rb: rewrite all.
-
-Sat Jun 19 11:21:46 2006  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/test/unit/assertions.rb: Merge RDoc from HEAD.
-
-Tue Jun 20 01:06:57 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb:
-	  - cleanup validation mechanism. Now, #XXX_validation is
-	    needless.
-	  - changed internal variable name RSS::Element::MODEL to
-	    RSS::Element::MODELS.
-	  - RSS::Element.install_model requires uri.
-
-	* lib/rss/0.9.rb: followed new validation API.
-	* lib/rss/1.0.rb: ditto.
-	* lib/rss/2.0.rb: ditto.
-	* lib/rss/content.rb: ditto.
-	* lib/rss/dublincore.rb: ditto.
-	* lib/rss/image.rb: ditto.
-	* lib/rss/syndication.rb: ditto.
-	* lib/rss/taxonomy.rb: ditto.
-	* lib/rss/trackback.rb: ditto.
-
-Mon Jun 19 23:40:59 2006  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/nkf/lib/kconv.rb: remove default -m0 and fix document.
-
-	* ext/nkf/nkf-8/{nkf.c, config.h, utf8tbl.c, utf8tbl.h}:
-	  imported nkf 2.0.7.
-
-Mon Jun 19 22:31:59 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb:
-	  - provided default #to_s as RSS::Element#to_s.
-	  - removed RSS::Element#other_element.
-	  - RSS::Element#tag requires attributes as Hash instead of Array.
-
-	* lib/rss/0.9.rb: removed #to_s to use RSS::Element#to_s.
-	* lib/rss/1.0.rb: ditto.
-	* lib/rss/image.rb: ditto.
-	* lib/rss/taxonomy.rb: ditto.
-	* lib/rss/trackback.rb: ditto.
-
-	* lib/rss/2.0.rb: removed #other_element.
-
-Mon Jun 19 22:09:16 2006  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/win32ole.c(ole_invoke): support some kind of
-	  method of word. [ruby-Bugs#3237]
-
-	* ext/win32ole/tests/test_word.rb: ditto.
-
-	* ext/win32ole/tests/testall.rb: ditto.
-
-Mon Jun 19 00:02:17 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb: automatically detected attributes.
-
-	* lib/rss/0.9.rb: removed #_attrs.
-	* lib/rss/1.0.rb: ditto.
-	* lib/rss/2.0.rb: ditto.
-	* lib/rss/image.rb: ditto.
-	* lib/rss/taxonomy.rb: ditto.
-	* lib/rss/trackback.rb: ditto.
-
-	* lib/rss/parser.rb: followed new internal API.
-
-Mon Jun 19 00:00:17 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/multi-tk.rb: fix bug: initialize improper tables.
-
-Sun Jun 18 22:36:13 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb: RSS::Element#initialize accepts initial
-	  attributes.
-	* lib/rss/0.9.rb: ditto.
-	* lib/rss/1.0.rb: ditto.
-	* lib/rss/2.0.rb: ditto.
-	* lib/rss/dublincore.rb: ditto.
-	* lib/rss/image.rb: ditto.
-	* lib/rss/taxonomy.rb: ditto.
-	* lib/rss/trackback.rb: ditto.
-
-	* lib/rss/utils.rb: added Utils.element_initialize_arguments? to
-	  detect backward compatibility initial arguments.
-
-	* lib/rss/parser.rb: user initial attributes to initialize
-	  RSS::Element.
-
-Sun Jun 18 18:24:42 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/converter.rb: use NKF for Uconv fallback.
-
-Sun Jun 18 18:22:04 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* test/rss/test_image.rb: shared name space configuration.
-
-Sun Jun 18 18:13:25 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb: improved ignore_unknown_element
-	  handling. RSS::NotExpectedTagError provides tag URI.
-	* lib/rss/parser.rb: ditto.
-	* lib/rss/0.9.rb: ditto.
-	* lib/rss/1.0.rb: ditto.
-	* lib/rss/content.rb: ditto.
-	* lib/rss/dublincore.rb: ditto.
-	* lib/rss/image.rb: ditto.
-	* lib/rss/syndication.rb: ditto.
-	* lib/rss/taxonomy.rb: ditto.
-	* lib/rss/trackback.rb: ditto.
-
-	* test/rss/rss-assertions.rb: checked URI of not expected tag too.
-	* test/rss/test_parser.rb: ditto.
-
-Sun Jun 18 18:08:36 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb: changed empty namespace URI representation to ""
-	  from nil.
-	* lib/rss/parser.rb: ditto.
-	* lib/rss/0.9.rb: ditto.
-	* lib/rss/1.0.rb: ditto.
-	* lib/rss/2.0.rb: ditto.
-
-Sun Jun 18 18:03:50 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/parser.rb: removed a guard for requiring open-uri.
-
-Sun Jun 18 18:01:26 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb: fixed typo: except -> expect
-	* lib/rss/parser.rb: ditto.
-	* test/rss/rss-assertions.rb: ditto.
-	* test/rss/test_parser.rb: ditto.
-
-Sun Jun 18 17:52:39 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb: RSS::Element#calc_indent became to be deprecated.
-	* lib/rss/0.9.rb: ditto.
-	* lib/rss/1.0.rb: ditto.
-	* lib/rss/image.rb: ditto.
-	* lib/rss/taxonomy.rb: ditto.
-	* lib/rss/trackback.rb: ditto.
-
-	* test/rss/test_1.0.rb: removed RSS::Element.indent_size tests.
-	* test/rss/test_2.0.rb: ditto.
-
-Sun Jun 18 00:49:11 2006  Tanaka Akira  <akr@m17n.org>
-
-	* ext/socket/socket.c (bsock_recv_nonblock): new method
-	  BasicSocket#recv_nonblock.
-	  (udp_recvfrom_nonblock): renamed from ip_recvfrom_nonblock.
-	  IPSocket#recvfrom_nonblock is moved to UDPSocket#recvfrom_nonblock.
-	  (unix_recvfrom_nonblock): removed.
-	  UNIXSocket#recvfrom_nonblock is removed.
-
-Sat Jun 17 22:17:17 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/mathn.rb (Integer::prime_division): raise ZeroDivisionError
-	  on zeros.  [ruby-dev:28739]
-
-Sat Jun 17 14:53:32 2006  Tanaka Akira  <akr@m17n.org>
-
-	* lib/pathname.rb: backport from 1.9.
-	  (Kernel#Pathname): new method.
-
-Sat Jun 17 10:30:41 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb (Hash#merge, Enumerable#sort_by): removed.
-
-	* lib/rss/rss.rb (RSS::RootElementMixin#to_xml): added.
-	  [ruby-talk:197284]
-
-	  We can convert RSS version easily like the following:
-	    rss10 = RSS::Parser.parse(File.read("1.0.rdf"))
-	    File.open("2.0.rss", "w") {|f| f.print(rss10.to_xml("2.0"))}
-
-	* test/rss/test_1.0.rb: added #to_xml test.
-	* test/rss/test_2.0.rb: ditto.
-
-	* test/rss/rss-testcase.rb: added some helper methods that
-	  generates sample RSS 2.0.
-
-	* sample/rss/convert.rb: added a sample script to convert RSS format.
-
-Sat Jun 17 10:23:22 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb (Kernel#funcall): removed.
-	* lib/rss/parser.rb (Kernel.URI): removed.
-
-	* lib/rss/maker/: supported
-	    xxx.new_yyy do |yyy|
-	      yyy.zzz = zzz
-	      ...
+	    # certid_target is an OpenSSL::OCSP::CertificateId for cert
+	    basic = res.basic
+	    result = basic.status.any? do |ary|
+	      ary[0].cmp(certid_target) &&
+	        ary[4] <= Time.now && (!ary[5] || Time.now <= ary[5])
 	    end
-	  style and this style became the style of the recommendation.
-
-	  Old style
-	    yyy = xxx.new_yyy
-	    yyy.zzz = zzz
-	    ...
-	  is supported too but this style isn't recommended.
-	  [ruby-talk:197284]
-
-	* test/rss/test_*maker*.rb: used new recommended style.
-
-Sat Jun 17 09:03:47 2006  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss, test/rss: backported from trunk. (2005-11-16 - now)
-
-	* lib/rss/rss.rb (RSS::VERSION): 0.1.5 -> 0.1.6.
-	* test/rss/test_version.rb (RSS::TestVersion#test_version): ditto.
-
-	* lib/rss/trackback.rb: added TrackBack prefix.
-	* lib/rss/maker/trackback.rb: ditto.
-
-	* lib/rss/rss.rb : removed needless argument 'prefix'.
-	* lib/rss/parser.rb: ditto.
-
-	* lib/rss/1.0.rb: added rdf:Bag.
-
-	* lib/rss/taxonomy.rb: implemented taxonomy module.
-	* test/rss/test_taxonomy.rb: added tests for taxonomy support.
-
-	* lib/rss/1.0.rb: added convenience method 'resources'.
-	* lib/rss/taxonomy.rb: ditto.
-	* test/rss/rss-assertions.rb: added test for 'resources'.
-	* test/rss/test_taxonomy.rb: ditto.
-
-	* lib/rss/rss.rb: fixed a indentation bug.
-	* lib/rss/taxonomy.rb: fixed <taxo:topic> #to_s bug.
-	* test/rss/test_taxonomy.rb: added a #to_s test.
-
-	* lib/rss/maker/taxonomy.rb: implemented taxonomy module for RSS
-	  Maker.
-	* lib/rss/taxonomy.rb: supported RSS Maker.
-	* lib/rss/maker.rb: added taxonomy module support.
-
-	* lib/rss/rss.rb: adjusted to other element API.
-	* lib/rss/1.0.rb: adjusted to other element API but backward
-	  compatibility is reserved.
-	* lib/rss/0.9.rb: ditto.
-
-	* test/rss/test_maker_taxo.rb: added test case for taxonomy module
-	  for RSS Maker.
-	* test/rss/test_setup_maker_1.0.rb: added tests for taxo:topic.
-
-	* test/rss/test_setup_maker_1.0.rb: added backward compatibility
-	  test.
-	* test/rss/test_setup_maker_0.9.rb: ditto.
-	* test/rss/test_setup_maker_2.0.rb: ditto.
-
-	* test/rss/rss-testcase.rb: added convenience method for setting
-	  up taxo:topic.
-	* test/rss/rss-assertions.rb: added assertion for taxo:topic.
-
-	* sample/rss/blend.rb: followed new API.
-
-	* lib/rss/taxonomy.rb: changed class or module prefix to
-	  Taxonomy from Taxo.
-	* lib/rss/maker/taxonomy.rb: ditto.
-
-	* test/rss/test_taxonomy.rb: use #reject directory.
-
-	* lib/rss/: use #__send__ instead of #send.
-	* test/rss/: ditto.
-
-	* lib/rss/parser.rb: added entity handling type predicate.
-	* lib/rss/rexmlparser.rb: ditto.
-	* lib/rss/xmlparser.rb: ditto.
-	* lib/rss/xmlscanner.rb: ditto.
-
-	* lib/rss/xmlscanner.rb: more robust entity handling.
-
-	* test/rss/test_parser.rb: added an entity handling test.
-
-	* test/rss/test_2.0.rb: added RSS 2.0 tests.
-	* test/rss/rss-assertions.rb: extended XML stylesheet assertion.
-	* lib/rss/0.9.rb: added initialize method.
-	* test/rss/test_1.0.rb: cleanup.
-
-	* lib/rss/image.rb: added Image prefix.
-	* lib/rss/maker/image.rb: ditto.
-
-	* lib/rss/rss.rb: improved type conversion.
-	* lib/rss/1.0.rb: ditto.
-	* lib/rss/0.9.rb: ditto.
-	* lib/rss/2.0.rb: ditto.
-	* lib/rss/image.rb: ditto.
-	* lib/rss/syndication.rb: ditto.
-
-	* test/rss/test_2.0.rb: added type conversion tests.
-	* test/rss/test_accessor.rb: ditto.
-	* test/rss/test_to_s.rb: ditto.
-	* test/rss/test_syndication.rb: ditto.
-	* test/rss/test_setup_maker_2.0.rb: ditto.
-	* test/rss/test_setup_maker_1.0.rb: ditto.
-	* test/rss/test_setup_maker_0.9.rb: ditto.
-	* test/rss/test_maker_sy.rb: ditto.
-	* test/rss/test_maker_image.rb: ditto.
-	* test/rss/test_maker_2.0.rb: ditto.
-	* test/rss/test_maker_0.9.rb: ditto.
-	* test/rss/test_image.rb: ditto.
-
-	* test/rss/test_maker_1.0.rb: use assert instead of assert_equal.
-
-	* test/rss/rss-assertions.rb: improved type conversion assertions.
-
-	* lib/rss/rss.rb: added backward compatibility codes.
-	* lib/rss/parser.rb: ditto.
-	* test/rss/test_parser.rb: ditto.
-	* test/rss/test_2.0.rb: ditto.
-
-Sat Jun 17 02:01:00 2006  Tanaka Akira  <akr@m17n.org>
-
-	* lib/pp.rb (Kernel#pretty_inspect): defined for pretty printed
-	  string.
-
-Sat Jun 17 00:23:58 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (reswords): kDO_BLOCK was missing.  fixed: [ruby-core:7995]
-
-Sat Jun 17 00:02:15 2006  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/win32ole.c (ole_propertyput): support
-	  PROPERTYPUTREF. [ruby-talk:183042]
-
-	* ext/win32ole/tests/test_propertyputref.rb: ditto.
-
-Thu Jun 15 23:02:47 2006  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/win32ole.c (fole_methods): The return value
-	  of WIN32OLE#ole_methods should include PROPERTYPUTREF methods.
-
-	* ext/win32ole/win32ole.c (fole_put_methods): The return value
-	  of WIN32OLE#ole_put_methods should include PROPERTYPUTREF methods.
-
-	* ext/win32ole/tests/test_ole_methods.rb: ditto.
-
-	* ext/win32ole/tests/testall.rb : ditto.
-
-Wed Jun 14 18:23:28 2006  Eric Hodel  <drbrain@segment7.net>
-
-	* enum.c (enum_any): Documentation typo.
-
-Wed Jun 14 15:01:09 2006  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/parsers/parse_rb.rb (RDoc::RubyParser#warn): Don't print
-	  warnings when -q is set.
-
-Wed Jun 14 23:03:53 2006  Tanaka Akira  <akr@m17n.org>
-
-	* configure.in: check sizeof(rlim_t).
-	  check setrlimit.
-
-	* process.c (proc_getrlimit): new method Process.getrlimit.
-	  (proc_setrlimit): new method Process.setrlimit.
-
-	* ruby.h (NUM2ULL): new macro.
-
-Mon Jun 12 22:25:09 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* sprintf.c (rb_f_sprintf): adjust precision length to prevent
-	  splitting multi-byte characters.  [ruby-list:42389]
-
-Sun Jun 11 23:20:07 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse.rb (OptionParser::Arguable#getopts): pass self to the
-	  parser.
-
-Sun Jun 11 10:00:57 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.h (write): not need to define on bcc.
-
-Sun Jun 11 08:30:33 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse.rb (OptionParser#getopts): new methods.
-
-Sat Jun 10 18:02:40 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/bigdecimal/lib/bigdecimal/newton.rb (Newton::nlsolve): typo
-	  fixed: raize -> raise.  [ruby-talk:196608]
-
-Thu Jun  8 14:19:17 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.[ch] (rb_w32_read, rb_w32_write): new functions.
-	  use recv() and send() when fd is socket. fixed: [ruby-dev:28694]
-
-Wed Jun  7 16:22:51 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/tempfile.rb (Tempfile::make_tmpname): put dot between
-	  basename and pid.  [ruby-talk:196272]
-
-Wed Jun  7 14:53:04 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (errmap): add some winsock errors.
-
-Wed Jun  7 11:34:38 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* configure.in: add new configure option `--with-winsock2' for mingw.
-
-	* win32/Makefile.sub (config.h): define USE_WINSOCK2 in config.h
-	  instead of in CPPFLAGS.
-
-	* ext/socket/extconf.rb: determine whether to use winsock2 or not
-	  by using with_config.
-
-Wed Jun  7 10:45:10 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/{configure.bat, setup.mak, Makefile.sub, win32.h}: add
-	  new configure option `--with-winsock2'.
-
-	* win32/win32.c (StartSockets): ditto.
-
-	* ext/socket/extconf.rb: ditto.
-
-	* win32/win32.c (open_ifs_socket): new function.
-
-	* win32/win32.c (StartSockets, rb_w32_socket): use open_ifs_socket()
-	  instead of socket().
-	  ifs socket support is backported from trunk.
-
-Wed Jun  7 09:14:44 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_call0): binding for the return event hook should have
-	  consistent scope.  [ruby-core:07928]
-
-	* eval.c (EXEC_EVENT_HOOK): trace_func may remove itself from
-	  event_hooks.	no guarantee for arbitrary hook deletion.
-	  [ruby-dev:28632]
-
-Mon Jun  5 18:12:12 2006  Tanaka Akira  <akr@m17n.org>
-
-	* ext/socket/socket.c (sock_s_unpack_sockaddr_in): reject
-	  non-AF_INET/AF_INET6 sockaddr.
-	  (sock_s_unpack_sockaddr_un): reject non-AF_UNIX sockaddr.
-	  [ruby-dev:28691]
-
-Sun Jun  4 20:40:19 2006  Tanaka Akira  <akr@m17n.org>
-
-	* ext/socket/socket.c: fix sockaddr_un handling.
-	  [ruby-dev:28677]
-
-Fri Jun  2 22:08:17 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/forwardable.rb: RDoc typo fix from Jan Svitok
-	  <jan.svitok at gmail.com>.  [ruby-core:07943]
-
-Fri Jun  2 19:02:09 2006  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/extconf.rb: use create_header.
-
-	* ext/openssl/ossl.h, ext/openssl/openssl_missing.h:
-	  include RUBY_EXTCONF_H.
-
-Fri Jun  2 17:16:52 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (CLEANINGS): remove extconf.h by distclean if created.
-
-Fri Jun  2 00:11:19 2006  Tanaka Akira  <akr@m17n.org>
-
-	* ext/socket/socket.c (s_recvfrom): alen may be zero with UNIXSocket
-	  too.  (tested on NetBSD 3.0)
-	  (s_recvfrom_nonblock): extracted from sock_recvfrom_nonblock.
-	  (sock_recvfrom_nonblock): use s_recvfrom_nonblock.
-	  (ip_recvfrom_nonblock): new method: IPSocket#recvfrom_nonblock
-	  (unix_recvfrom_nonblock): new method: UNIXSocket#recvfrom_nonblock
-	  (s_accept_nonblock): extracted from sock_accept_nonblock.
-	  (sock_accept_nonblock): use s_accept_nonblock.
-	  (tcp_accept_nonblock): new method: TCPServer#accept_nonblock
-	  (unix_accept_nonblock): new method: UNIXServer#accept_nonblock
-
-Thu Jun  1 19:12:37 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.c (rb_w32_cmdvector): backslashes inside single-quotes
-	  no longer has special meanings.  fixed: [ruby-list:42311]
-
-Thu Jun  1 16:14:41 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (rb_w32_getcwd): runtime's getcwd() will not success
-	  if the length of the cwd is longer than MAX_PATH.
-	  fixed [ruby-list:42335]
-
-Thu Jun  1 11:29:14 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (rb_w32_getcwd): set errno if not set.
-	  fixed [ruby-list:42346]
-
-Sat May 27 11:29:46 2006  nobuyoshi nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb (extmake): remove extinit files if no statically linked
-	  extensions.
-
-Fri May 26 09:05:11 2006  nobuyoshi nakada  <nobu@ruby-lang.org>
-
-	* ruby.h, lib/mkmf.rb (create_header): clear command line options for
-	  macros moved to extconf.h.
-
-	* ext/extmk.rb (extract_makefile, extmk): made RUBY_EXTCONF_H and
-	  EXTSTATIC permanent.
-
-	* ext/{dbm,digest/*,socket,zlib}/extconf.rb: used $defs and $INCFLAGS.
-
-	* {bcc32,win32,wince}/Makefile.sub (COMPILE_C, COMPILE_CXX): added
-	  $(INCFLAGS).
-
-	* lib/mkmf.rb (configuration): add $defs unless extconf.h was created.
-
-Thu May 25 01:52:07 2006  nobuyoshi nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (pkg_config): particular config commands support.
-
-	* ext/extmk.rb: deal with $static set in extconf.rb.
-
-	* mkconfig.rb: merge multiple entries to an entry with multiple lines.
-
-	* lib/mkmf.rb: allow a series of commands to link.
-
-	* win32/Makefile.sub: embed manifests.
-
-	* win32/setup.mak: suffix OS name by runtime version.
-
-Wed May 24 23:52:11 2006  nobuyoshi nakada  <nobu@ruby-lang.org>
-
-	* configure.in (ac_install_sh): ignore dummy install-sh.
-	  [ruby-talk:193876]
-
-Wed May 24 03:10:48 2006  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/lib/openssl/ssl.rb
-	  (OpenSSL::SSL::SocketForwarder#setsockopt,getsockopt): typo fixed.
-
-Mon May 22 17:54:12 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/socket/socket.c (sock_recvfrom_nonblock): use rb_read_pending
-	  instead of rb_io_read_pending.
-	  [ruby-dev:28663]
-
-Mon May 22 17:30:04 2006  Tanaka Akira  <akr@m17n.org>
-
-	* rubyio.h (rb_io_set_nonblock): declared.
-
-	* io.c (rb_io_set_nonblock): new function.
-	  (io_getpartial): nonblocking read support.
-	  (io_read_nonblock): new method: IO#read_nonblock.
-	  (io_write_nonblock): new method: IO#write_nonblock.
-
-	* ext/socket/socket.c
-	  (sock_connect_nonblock): new method: Socket#connect_nonblock.
-	  (sock_accept_nonblock): new method: Socket#accept_nonblock.
-	  (sock_recvfrom_nonblock): new method: Socket#recvfrom_nonblock.
-
-	  [ruby-core:7917]
-
-Mon May 22 15:57:39 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (umethod_bind): should not update original class.
-	  [ruby-dev:28636]
-
-Mon May 22 13:38:57 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (ev_const_get): should support constant access from
-	  within instance_eval().  [ruby-dev:28327]
-
-Thu May 18 17:51:32 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* time.c (time_timeval): should round for usec floating
-	  number.  [ruby-core:07896]
-
-	* time.c (time_add): ditto.
-
-Thu May 18 17:11:45 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/cgi.rb (CGI::out): support utf-8.  a patch from Fujioka
-	  <fuj at rabbix.jp>.  [ruby-dev:28649]
-
-Thu May 18 00:42:12 2006  nobuyoshi nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb, lib/mkmf.rb: use BUILD_FILE_SEPARATOR in Makefiles.
-
-Wed May 17 17:55:26 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* dir.c (sys_warning): should not call a vararg function
-	  rb_sys_warning() indirectly.  [ruby-core:07886]
-
-Wed May 17 08:17:15 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* util.c (ruby_strtod): try to reduce errors using powersOf10
-	  table.  [ruby-dev:28644]
-
-Tue May 16 15:34:18 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* re.c (rb_reg_initialize): should not allow modifying literal
-	  regexps.  frozen check moved from rb_reg_initialize_m as well.
-
-Tue May 16 09:20:16 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* re.c (rb_reg_initialize): should not modify untainted objects in
-	  safe levels higher than 3.
-
-	* re.c (rb_memcmp): type change from char* to const void*.
-
-	* dir.c (dir_close): should not close untainted dir stream.
-
-	* dir.c (GetDIR): add tainted/frozen check for each dir operation.
-
-Mon May 15 17:42:39 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/rdoc/parsers/parse_rb.rb (RDoc::RubyParser::parse_symbol_arg):
-	  typo fixed.  a patch from Florian Gross <florg at florg.net>.
-
-Sat May 13 16:14:05 2006  Tanaka Akira  <akr@m17n.org>
-
-	* lib/pp.rb (PP.mcall): new method.
-	  (Struct#pretty_print): call Kernel#class and Struct#members even if
-	  overridden.
-	  (Struct#pretty_print_cycle): ditto.
-	  [ruby-core:7865]
-
-Thu May 11 19:57:00 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* util.c (ruby_strtod): differ addition to minimize error.
-	  [ruby-dev:28619]
-
-Fri Aug 11 15:39:25 2006  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/yaml/tag.rb: Replace nodoc with stopdoc so Module methods get
-	  documented.
-
-Thu May 11 18:10:43 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* util.c (ruby_strtod): should not raise ERANGE when the input
-	  string does not have any digits.  [ruby-dev:28629]
-
-Sun May  7 03:09:51 2006  Stephan Maka  <stephan@spaceboyz.net>
-
-	* lib/resolv.rb (Resolv::DNS::Requester::ConnectedUDP#initialize):
-	  Use AF_INET6 for nameservers containing colons.
-
-Sat May  6 00:38:42 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* signal.c (trap): sig should be less then NSIG.  Coverity found
-	  this bug.  a patch from Kevin Tew <tewk at tewk.com>.
-	  [ruby-core:07823]
-
-Thu May  4 02:24:16 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/syck/emitter.c (syck_scan_scalar): avoid accessing
-	  uninitialized array element.  a patch from Pat Eyler
-	  <rubypate at gmail.com>.  [ruby-core:07809]
-
-	* array.c (rb_ary_fill): initialize local variables first.  a
-	  patch from Pat Eyler <rubypate at gmail.com>.  [ruby-core:07810]
-
-	* ext/syck/yaml2byte.c (syck_yaml2byte_handler): need to free
-	  type_tag.  a patch from Pat Eyler <rubypate at gmail.com>.
-	  [ruby-core:07808]
-
-Wed May  3 02:12:07 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/socket/socket.c (make_hostent_internal): accept ai_family
-	  check from Sam Roberts <sroberts at uniserve.com>.
-	  [ruby-core:07691]
-
-Mon May  1 12:23:19 2006    <sinara@blade.nagaokaut.ac.jp>
-
-	* numeric.c (num_div): use floor rather than rb_Integer().
-	  [ruby-dev:28589]
-
-	* numeric.c (flo_divmod): the first element of Float#divmod should
-	  be an integer. [ruby-dev:28589]
-
-	* test/ruby/test_float.rb: add tests for divmod, div, modulo and remainder.
-
-Sat Apr 29 22:42:08 2006  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_asn1.c (ossl_asn1_decode0): should initialize
-	  flag. [ruby-core:07785]
-
-Fri Apr 28 10:53:16 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* util.c (ruby_strtod): should not cut off 18 digits for no
-	  reason.  [ruby-core:07796]
-
-	* util.c (ruby_strtod): fixed wrong conversion.
-
-Thu Apr 27 01:38:10 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* array.c (rb_ary_fill): internalize local variable "beg" to
-	  pacify Coverity.  [ruby-core:07770]
-
-Wed Apr 26 16:59:24 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* pack.c (pack_unpack): now supports CRLF newlines.  a patch from
-	  <tommy at tmtm.org>.  [ruby-dev:28601]
-
-Tue Apr 25 18:00:05 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/tcltklib.c (delete_slaves): maybe increment the reference
-	  count of a NULL Tcl_Obj [ruby-core:07759].
-
-Tue Apr 25 07:55:31 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/jcode.rb (String::tr_s): should have translated non
-	  squeezing character sequence (i.e. a character) as well.  thanks
-	  to Hiroshi Ichikawa <gimite at gimite.ddo.jp> [ruby-list:42090]
-
-Tue Apr 25 00:08:24 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* regex.c (re_compile_pattern): should check if c is not a
-	  multibyte character.  a patch from KIMURA Koichi
-	  <kimura.koichi at canon.co.jp>.  [ruby-dev:28598]
-
-Fri Apr 21 15:19:13 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/tcltklib.c (lib_eventloop_ensure): refer freed pointer
-	  [ruby-core:07744] and memory leak.
-
-Fri Apr 21 12:14:52 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/socket/socket.c: document update patch from Sam Roberts
-	  <sroberts at uniserve.com>.  [ruby-core:07701]
-
-Wed Apr 19 13:55:27 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* parse.y (arg): too much NEW_LIST()
-
-	* eval.c (SETUP_ARGS0): remove unnecessary access to nd_alen.
-
-Wed Apr 19 11:57:04 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_eval): use ARGSCAT for NODE_OP_ASGN1.
-	  [ruby-dev:28585]
-
-	* parse.y (list_concat): revert last change.
-
-	* parse.y (arg): use NODE_ARGSCAT for placeholder.
-
-Wed Apr 19 11:13:17 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/getoptlong.rb (GetoptLong::get): RDoc update patch from
-	  mathew <meta at pobox.com>.  [ruby-core:07738]
-
-Wed Apr 19 10:13:27 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* variable.c (rb_const_set): raise error when no target klass is
-	  supplied.  [ruby-dev:28582]
-
-Wed Apr 19 09:49:36 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* parse.y (list_concat): should not modify nodes other than
-	  NODE_ARRAY.  [ruby-dev:28583]
-
-Tue Apr 18 17:40:37 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/multi-tk.rb: add a binding to a container for a slave IP.
-
-	* ext/tk/lib/tk.rb: update RELEASE_DATE.
-
-	* ext/tk/tcltklib.c: forget to reset a Tcl interpreter.
-
-	* ext/tk/stubs.c: fix potential bugs about handling rb_argv0.
-
-Tue Apr 18 00:11:21 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c: block_unique should be 1, not frame_unique.
-	  [ruby-dev:28577]
-
-Fri Aug 11 15:39:25 2006  Eric Hodel  <drbrain@segment7.net>
-
-	* lib/rdoc/parsers/parse_c.rb (RDoc::C_Parser#find_body): Make RDoc
-	  ignore C function prototypes.  Patch by Tilman Sauerbeck
-	  <tilman at code-monkey.de>.  [ruby-core:8574]
-	* lib/yaml/tag.rb: Replace nodoc with stopdoc so Module methods get
-	  documented.
-
-Mon Apr 10 01:03:10 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* prec.c (prec_prec_f): documentation patch from
-	  <gerardo.santana at gmail.com>.  [ruby-core:07689]
-
-Sat Apr  8 02:34:34 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* bignum.c (rb_big_pow): second operand may be too big even if
-	  it's a Fixnum.  [ruby-talk:187984]
-
-Sat Apr  8 02:12:38 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* README.EXT: update symbol description.  [ruby-talk:188104]
-
-Thu Apr  6 23:28:47 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* COPYING: explicitly note GPLv2.  [ruby-talk:187922]
-
-Thu Apr  6 11:18:37 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/panedwindow.rb: lack of arguments. [ruby-core:7681]
-
-Thu Apr  6 01:04:47 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/tcltklib.c: fix SEGV when embedding to an application.
-	  [ruby-core:7600]
-
-	* ext/tk/tcltklib.c: fix SEGV at exit. [ruby-talk:186489]
-
-	* ext/tk/tkutil/tkutil.c: follow to changing specification of
-	  instance_eval on ruby-1.9.x.
-
-	* ext/tk/lib/tk.rb: ditto.
-
-	* ext/tk/lib/multi-tk.rb: ditto.
-
-	* ext/tk/lib/tk.rb: remove warning about redefinition of methods.
-
-	* ext/tk/lib/tk/variable.rb: remove warning about unseting Tcl
-	  variables.
-
-Wed Mar 29 20:54:44 2006  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/win32ole.c (fole_getproperty): WIN32OLE#[] should accept
-	  multi arguments.
-
-	* ext/win32ole/tests/testWIN32OLE.rb (test_setproperty_bracket): ditto.
-
-Wed Mar 29 10:07:44 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/nkf/nkf-utf8/nkf.c (nkf_each_char_to_hex, encode_fallback_subchar,
-	  e2w_conv): support C90 compiler.
-
-Wed Mar 29 06:48:40 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (backtrace): reports aliased method names in a generated
-	  backtrace.  a patch from "U.Nakamura" <usa at garbagecollect.jp>.
-	  [ruby-dev:28471]
-
-Mon Mar 27 22:19:09 2006  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/nkf/nkf-utf8/{nkf.c, utf8tbl.c, config.h}: imported nkf 2.0.6.
-	  * Add --ic / --oc option and mapping tables.
-	  * Add fallback option.
-	  * Add --no-best-fit-chars option.
-	  * Fix some bugs.
-
-	* ext/nkf/nkf.c (nkf_split_options): added for parse option string.
-
-	* ext/nkf/lib/kconv.rb (Kconv.to*): add -m0.
-	  Note that Kconv.to* still imply -X.
-
-Mon Mar 27 03:17:21 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_call0): insecure calling should be checked for non
-	  NODE_SCOPE method invocations too.
-
-	* eval.c (rb_alias): should preserve the current safe level as
-	  well as method definition.
-
-Fri Mar 24 23:14:30 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (yield_under_i): pass self again for instance_eval().
-	  [ruby-dev:28466]
-
-Fri Mar 24 17:20:03 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* process.c (rb_f_sleep): remove description about SIGALRM which
-	  is not valid on the current implementation.  [ruby-dev:28464]
-
-Thu Mar 23 10:47:03 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (method_missing): should support argument splat in
-	  super.  [ruby-talk:185438]
-
-Mon Mar 20 12:05:18 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* configure.in: Solaris SunPro compiler -rapth patch from
-	  <kuwa at labs.fujitsu.com>.  [ruby-dev:28443]
-
-Mon Mar 20 09:40:23 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* configure.in: remove enable_rpath=no for Solaris.
-	  [ruby-dev:28440]
-
-Fri Mar 17 19:08:49 2006  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_ssl.c, ext/openssl/ossl_nsspki.c: fix typo.
-	  [ruby-core:07571]
-
-Wed Mar 15 16:54:21 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* lib/mkmf.rb (create_makefile): support libraries without *.so.
-
-Wed Mar 15 16:35:43 2006  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_ssl.c, ext/openssl/ossl_nsspki.c: should use
-	  "rb_str_new(0, 0)" to make empty string.
-
-Sat Mar 11 14:24:06 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/rdoc/ri/ri_formatter.rb (RI::TextFormatter::wrap): removed
-	  space before argument parenthesis.  [ruby-talk:183630]
-
-	* ruby.1: a clarification patch from David Lutterkort
-	  <dlutter at redhat.com>.  [ruby-core:7508]
-
-Sat Mar  4 15:26:40 2006  Tanaka Akira  <akr@m17n.org>
-
-	* gc.c (id2ref): fix symbol test.
-
-Sat Mar  4 01:08:07 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/rdoc/ri/ri_paths.rb (RI::Paths): adding paths from rubygems
-	  directories.  a patch from Eric Hodel <drbrain at segment7.net>.
-	  [ruby-core:07423]
-
-Thu Mar  2 19:44:18 2006  Tanaka Akira  <akr@m17n.org>
-
-	* gc.c: align VALUE with sizeof(RVALUE) globally.
-	  (is_pointer_to_heap): check alignment out of loop.
-	  (id2ref): avoid collision between symbols and objects.
-	  (rb_obj_id): ditto.  moved from object.c.
-	  [ruby-talk:178364] [ruby-core:7305]
-
-Thu Mar  2 18:58:18 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_thread_fd_writable): should not re-schedule output
-	  from KILLED thread (must be error printing).
-
-Thu Mar  2 17:57:49 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* gc.c: commited magic for reducing RVALUE size on windows. (24->20byte)
-	  [ruby-core:7474]
-
-Thu Mar  2 12:59:14 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* win32/win32.c (filetime_to_unixtime): should set tm_isdst to -1.
-	  stat() didn't treat daylight saving time property on WinNT.
-	  [ruby-talk:182100]
-
-Thu Mar  2 08:02:42 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* gc.c (add_heap): heap_slots may overflow.  a patch from Stefan
-	  Weil <weil at mail.berlios.de>.
-
-Wed Mar  1 00:24:31 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* lib/rdoc/parsers/parse_rb.rb (read_escape): could not handle /\^/.
-	  merged Mr. Ishizuka's lib/irb/ruby-lex.rb 's patch rev 1.29.
-	  [ruby-talk:181631] [ruby-dev:28404]
-
-Tue Feb 28 09:32:17 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* lib/drb/extservm.rb (invoke_service_command): cannot invoke command
-	  if command name is quoted on mswin32. [ruby-dev:28400]
-
-Mon Feb 27 00:19:16 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ruby.h (SYM2ID): should not cast to signed long.
-	  [ruby-core:07414]
-
-Fri Feb 24 20:07:23 2006  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* test/drb/drbtest.rb (add_service_command): quote pathnames in the
-	  server's command line for space contained directory names.
-	  Thanks, arton. [ruby-dev:28386]
-
-Fri Feb 24 12:11:08 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* instruby.rb: install *.exe.manifest and *.dll.manifest if exist.
-	  It's for VC++8.
-
-Fri Feb 24 11:33:52 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* bcc32/Makefile.sub (HAVE_HYPOT): bcc32 has hypot().
-
-Fri Feb 24 11:19:58 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* time.c (time_new_internal): add prototype to tell the compiler
-	  arugments types.
-
-	* win32/win32.c (NtInitialize): need to set a handler for VC++8.
-
-Fri Feb 24 08:19:16 2006  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* test.rb: Removed.  Obsolete by test/nkf.
-
-	* ext/.document: enabled documents in nkf and kconv
-
-	* ext/nkf/nkf.c ext/nkf/lib/kconv.rb: Add rdoc.
-
-Thu Feb 23 22:39:59 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* bcc32/Makefile.sub: use borlndmm.dll if possible. bcc32's RTL internal
-	  memory manager cannot handle large memory block properly.
-	  ex: 10000.times { "" << "." * 529671; GC.start } # crash
-	  [ruby-dev:28230]
-
-Thu Feb 23 13:20:28 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* eval.c (SETUP_ARGS0): fixed memory corruption. [ruby-dev:28360]
-
-Tue Feb 21 02:18:46 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* configure.in (mingw): have link.  [ruby-list:41838]
-
-	* win32/Makefile.sub (config.h): ditto.
-
-Tue Feb 21 02:07:39 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* parse.y (f_arglist): should set command_start = Qtrue for
-	  command body.  [ruby-talk:180648]
-
-Mon Feb 20 17:37:26 2006  Tanaka Akira  <akr@m17n.org>
-
-	* mkconfig.rb: alias RbConfig for Config.
-
-Mon Feb 20 12:27:53 2006  Kent Sibilev  <ksruby@gmail.com>
-
-	* lib/rational.rb (Integer::gcd): small typo fix.
-	  [ruby-core:07395]
-
-Mon Feb 20 01:05:27 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/rational.rb (Integer::gcd): replaced by gcd4 in
-	  [ruby-core:07390].  [ruby-core:07377]
-
-Mon Feb 20 00:57:02 2006  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl.h (OSSL_Debug): should not use __func__.
-	  [ruby-dev:28339]
-
-Sun Feb 19 04:46:29 2006  Guy Decoux  <ts@moulon.inra.fr>
-
-	* eval.c: initial value for block_unique must be 1.
-	  [ruby-talk:180420]
-
-Sat Feb 18 23:58:26 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/tracer.rb (Tracer::Tracer.add_filter): turn on tracer mode
-	  only when caller() level size is one.  [ruby-core:07389]
-
-	* lib/rdoc/parsers/parse_rb.rb: need not to require "tracer".
-	  [ruby-core:07389]
-
-	* sample/rtags.rb: ditto.
-
-Sat Feb 18 12:18:26 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/fileutils.rb (FileUtils::fu_world_writable): make it
-	  private.  [ruby-core:07383]
-
-Sat Feb 18 00:22:39 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/tracer.rb: merged a minor clarification patch from Daniel
-	  Berger <Daniel.Berger at qwest.com>.  [ruby-core:07376]
-
-Fri Feb 17 11:18:42 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* util.c (ruby_strtod): Float("1e") should fail. [ruby-core:7330]
-
-	* pack.c (EXTEND32): unpack("l") did not work where sizeof(long) != 4.
-	  [ruby-talk:180024]
-
-	* pack.c (pack_unpack): fixed integer overflow on template "w".
-	  [ruby-talk:180126]
-
-Fri Feb 17 09:39:29 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_thread_wait_for): sleep should always sleep for
-	  specified amount of time.  [ruby-talk:180067]
-
-Thu Feb 16 01:10:48 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (backtrace): frame->orig_func may not be initialized.
-	  [ruby-core:07367]
-
-Wed Feb 15 16:52:52 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_eval): NODE_OP_ASGN1 should allow splat in its
-	  argument list.  [ruby-core:07366]
-
-	* parse.y (arg): avoid unnecessary extra argument.
-	  [ruby-core:07366]
-
-	* eval.c (rb_eval): honor visibility on OP_ASGN1 and
-	  OP_ASGN2. [ruby-core:07366]
-
-Wed Feb 15 10:09:51 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (yield_under_i): should not pass self as an argument to
-	  the block for instance_eval.  [ruby-core:07364]
-
-Wed Feb 15 09:20:35 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_obj_instance_eval): should be no singleton classes for
-	  true, false, and nil.  [ruby-dev:28186]
-
-Tue Feb 14 18:48:33 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (DMETHOD_P): accessing wrong frame.  [ruby-dev:28181]
-
-	* eval.c (proc_invoke): preserve FRAME_DMETH flag.
-
-Tue Feb 14 15:13:51 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/zlib/zlib.c: supress warning on test/zlib. [ruby-dev:28323]
-
-Tue Feb 14 14:01:17 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* time.c (search_time_t): support non 32bit time_t environments.
-
-	* win32/Makefile.sub (config.h): VC++8 has ``long long'' type.
-
-	* win32/Makefile.sub (config.h): VC++8's time_t is 64bit value.
-
-	* win32/win32.c (rb_w32_utime): drop read-only attribute before
-	  changing file time.
-
-	  all changes are backported from CVS HEAD.
-
-Tue Feb 14 11:21:38 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (argf_forward): should not use frame->argv.
-	  [ruby-core:07358]
-
-Mon Feb 13 18:08:12 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_call0): argument update propagation.  [ruby-dev:28044]
-
-	* env.h: remove argv member from struct FRAME.
-
-Mon Feb 13 13:27:00 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (eval): should push class from binding if supplied.
-	  [ruby-core:07347]
-
-Mon Feb 13 00:04:00 2006  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/erb.rb (ERB::Compiler): add instance variable @insert_cmd to
-	  change <%='s behavior. (backported 1.15 - 1.16)
-
-Sat Feb 11 02:04:11 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (eval): no need to push ruby_class.  [ruby-dev:28176]
-
-Sat Feb 11 01:57:44 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_f_autoload): check if ruby_cbase is nil (during
-	  instance_eval for objects cannot have singleton classes,
-	  e.g. fixnums and symbols).  [ruby-dev:28178]
-
-Tue Feb  7 23:03:24 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/zlib/zlib.c: should not access ruby objects in finalizer.
-	  [ruby-dev:28286]
-
-Mon Feb  6 16:02:51 2006  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* file.c (rb_thread_flock): ERROR_NOT_LOCKED is not an error on Cygwin.
-	  In such situation, flock() should return 0.
-
-Mon Feb  6 00:41:08 2006  Tanaka Akira  <akr@m17n.org>
-
-	* ruby.h (RSTRUCT_LEN, RSTRUCT_PTR): defined for source level
-	  compatibility with ruby 1.9.
-
-Sun Feb  5 21:05:34 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* numeric.c (fix_to_s): removed workaround for radix 2. Historically,
-	  rb_fix2str could only handle radix 8, 10, 16. (Rev1.37) But for now,
-	  it can handle radix 2..36. [ruby-Bugs#3438] [ruby-core:7300]
-
-Sun Feb  5 18:55:08 2006  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/net/http.rb: imported from trunk, rev 1.129
-
-	* lib/net/http.rb (add_field, get_fields): keep 1.8.2 backward
-	  compatibility.
-
-	* lib/net/https.rb: imported from trunk, rev 1.3.
-
-	* lib/net/https.rb: #use_ssl? definition moved from net/http.rb.
-
-Sun Feb  5 14:22:15 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* lib/pstore.rb: should return default value if name is not found.
-	  [ruby-core:7304]
-
-	* lib/pstore.rb: should raise PStore::Error if not in transaction.
-
-Sat Feb  4 22:51:43 2006  Tanaka Akira  <akr@m17n.org>
-
-	* eval.c: apply the FreeBSD getcontext/setcontext workaround
-	  only before FreeBSD 7-CURRENT.
-
-Sat Feb  4 21:19:23 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (LK_ERR): ERROR_NOT_LOCKED is not an error.
-	  In such situation, flock() should return 0.
-
-Sat Feb  4 15:56:37 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* numeric.c (fix_to_s): (2**32).to_s(2) fails with exception where
-	  sizeof(int) == 4 < sizeof(long). [ruby-core:7300]
-
-Fri Feb  3 15:06:50 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/syck/syck.c (syck_move_tokens): should reset p->cursor or etc
-	  even if skip == 0. This causes buffer overrun.
-	  (ex: YAML.load('--- "..' + '\x82\xA0' * 511 + '"'))
-
-Thu Feb  2 23:51:18 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/syck/emitter.c (syck_emitter_write): should not set '\0' on
-	  emitter's marker. if marker points to the end of buffer, this causes
-	  buffer overrun. (ex: YAML.dump("." * 12288))
-
-Thu Feb  2 16:01:24 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (eval): need not to protect $SAFE value.
-	  [ruby-core:07177]
-
-Thu Feb  2 14:45:53 2006  Ville Mattila  <ville.mattila@stonesoft.com>
-
-	* configure.in: The isinf is not regognized by autoconf
-	  library guesser on solaris 10. [ruby-core:7138]
-
-Wed Feb  1 22:01:47 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* configure.in, hash.c (ruby_setenv): use setenv(3) and unsetenv(3)
-	  where they are supported. modifing environ variable seems to
-	  segfault solaris 10. [ruby-core:7276] [ruby-dev:28270]
-
-	* ruby.c (set_arg0): if use setenv(3), environ space cannot be used
-	  for altering argv[0].
-
-Tue Jan 31 14:46:28 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* struct.c (rb_struct_select): update RDoc description.
-	  [ruby-core:7254]
-
-Tue Jan 31 11:58:51 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/multi-tk.rb: add MultiTkIp#eval and bg_eval.
-
-	* ext/tk/lib/tk/namespace.rb: TkNamespace#eval was enbugged at the
-	  last commit. Now it will return a proper object.
-
-Tue Jan 31 00:10:26 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/syck/rubyext.c (syck_resolver_transfer): workaround for SEGV.
-	  ex: ruby -ryaml -e 'YAML.load("!map:B {}")' [ruby-core:7217]
-
-Sat Jan 28 07:56:57 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* lib/rdoc/usage.rb: support "a:0:33" style caller[-1]. In this case
-	  file name is "a:0". I don't know this really happens though...
-	  [ruby-Bugs:3344]
-
-Wed Jan 25 22:29:04 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in, dln.c, file.c, intern.h, missing.h (eaccess): use
-	  system routine if provided.  fixed: [ruby-core:07195]
-
-Sun Jan 22 23:27:13 2006  Go Noguchi  <gonoguti@yahoo.co.jp>
-
-	* lib/test/unit/autorunner.rb (process_args): ignore arguments after
-	  '--' so that test scripts can handle them.  fixed: [ruby-dev:28258]
-
-Sun Jan 22 22:09:52 2006  Tanaka Akira  <akr@m17n.org>
-
-	* eval.c (POST_GETCONTEXT): define separately from PRE_GETCONTEXT on
-	  IA64 to avoid reusing variable address.
-
-Sun Jan 22 20:03:35 2006  Tanaka Akira  <akr@m17n.org>
-
-	* eval.c (ruby_setjmp): define PRE_GETCONTEXT and POST_GETCONTEXT
-	  instead of FUNCTION_CALL_MAY_RETURN_TWICE.
-	  define PRE_GETCONTEXT to clear carry flag for workaround of
-	  FreeBSD/i386 getcontext/setcontext bug.
-	  [ruby-dev:28263]
-
-Sat Jan 21 00:36:47 2006  Tanaka Akira  <akr@m17n.org>
-
-	* eval.c (FUNCTION_CALL_MAY_RETURN_TWICE): use only on SPARC and IA64
-	  before gcc 4.0.3.
-	  [ruby-dev:28247]
-
-Thu Jan 19 22:21:23 2006  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/fileutils.rb (mv): should remove file after copying.
-	  [ruby-dev:28223]
-
-Wed Jan 18 23:37:06 2006  Tanaka Akira  <akr@m17n.org>
-
-	* eval.c (FUNCTION_CALL_MAY_RETURN_TWICE): don't clobber %l7 of SPARC
-	  if enable-shared.
-	  (ruby_setjmp): call FUNCTION_CALL_MAY_RETURN_TWICE after getcontext
-	  too.
-	  reported by Pav Lucistnik and Marius Strobl.
-	  http://lists.freebsd.org/pipermail/freebsd-sparc64/2006-January/003739.html
-
-Tue Jan 17 11:32:46 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/setup.mak (MAKE): workaround for nmake 8.
-
-Tue Jan 17 11:10:21 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/{Makefile.sub,setup.mak}: invoke .bat via shell. workaround
-	  for nmake 8.
-
-Mon Jan 16 10:26:23 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/syck/emitter.c (syck_emit_seq, syck_emit_map, syck_emit_item):
-	  should output complex key mark even if map's key is empty seq/map.
-	  [ruby-core:7129]
-
-Sat Jan 14 05:37:06 2006  Tanaka Akira  <akr@m17n.org>
-
-	* io.c (READ_DATA_PENDING, READ_DATA_PENDING_COUNT): defined
-	  for DragonFly BSD 1.4.0.
-
-Sat Jan 14 03:43:24 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* file.c (rb_file_s_chmod): avoid warning where sizeof(int) !=
-	  sizeof(void*).
-
-Fri Jan 13 19:14:56 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* lib/rdoc/diagram.rb:
-	    - properly quote bare element attributes
-	    - terminates dangling elements (e.g. <img>, <br>, <link>, etc)
-	    - converts "CVS" to the more HTML-friendly acronym element
-	    - adds missing type attributes to style elements
-
-	  based on Paul Duncan's patch <pabs@pablotron.org> [ruby-core:7028]
-
-	* lib/rdoc/generators/html_generator.rb: ditto.
-	* lib/rdoc/generators/template/html/hefss.rb: ditto.
-	* lib/rdoc/generators/template/html/html.rb: ditto.
-	* lib/rdoc/generators/template/html/kilmer.rb: ditto.
-
-Thu Jan 12 11:53:08 2006  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/sample/tkballoonhelp.rb: [bug fix] couldn't add to a widget
-	  which is constructed with TkComposite module.
-	  [new feature] support 'command' option which is called just before
-	  popping up the balloon help.
-
-Wed Jan 11 15:00:00 2006  Ville Mattila  <mulperi@iki.fi>
-
-	* io.c (READ_PENDING*): Support solaris 64-bit environments.
-	  Solaris defines a opaque FILE struct when compiling 64 bit
-	  binaries. This means that we dont have access to _ptr etc.
-	  members anymore. The solution by Steven Lumos is to define
-	  FILE64 that has needed members available. I've modified
-	  the origanal patch a bit so that it compiles both with gcc
-	  and now free sun studio 11 compiler and both amd64 and sparc.
-	  NOTE! We have to 64 bit solaris FILE structure time to time
-	  otherwise we'll get breakage.
-	  [ruby-core:7106]
-
-Tue Jan 10 19:42:33 2006  Tanaka Akira  <akr@m17n.org>
-
-	* gc.c (garbage_collect): mark ruby_current_node.
-	  if an exception is raised in a finalizer called written in C by
-	  rb_gc_call_finalizer_at_exit, ruby_set_current_source may use
-	  collected ruby_current_node and mark_source_filename may corrupt
-	  memory.
-
-Tue Jan 10 13:30:34 2006  akira yamada  <akira@ruby-lang.org>
-
-	* ext/syck/rubyext.c (syck_resolver_transfer): should be able to load
-	  !ruby/object:Bignum syntax 1.8.3 dumped. [ruby-core:6159]
-
-Tue Jan 10 12:47:41 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* lib/yaml/rubytypes.rb (Fixnum): Bignum could not be loaded in
-	  ruby 1.8.3/1.8.4. [ruby-core:6115]
-
-	* lib/yaml/rubytypes.rb (Numeric): Subclass of Numeric could not
-	  be dumped properly. [ruby-core:7047]
-
-Tue Jan 10 12:00:48 2006  Aaron Schrab  <aaron @nospam@ schrab.com>
-
-	* lib/yaml/rubytypes.rb (Symbol#yaml_new): YAML loading of quoted
-	  Symbols broken. [ruby-Bugs:2535]
-
-Mon Jan  9 19:54:35 2006  arton  <artonx@yahoo.co.jp>
-
-	* ext/zlib/extconf.rb: zlib compiled DLL version 1.2.3 distributed by
-	  http://www.zlib.net/ has zdll.lib. [ruby-dev:28209]
-
-Mon Jan  9 14:17:12 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* win32/Makefile.sub (OPTFLAGS): I have experienced trouble on y- flag,
-	  (VisualC++6) so use -O2b2xg- if  $(MSC_VER) < 1400. [ruby-core:7040]
-
-Mon Jan  9 14:17:12 2006  Kero van Gelder  <rubyforge @nospam@ kero.tmfweb.nl>
-
-	* lib/webrick/httpservlet/filehandler.rb: fixed typo. [ruby-core:7075]
-
-Sat Jan  7 15:40:07 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (singleton): get rid of segfault on syntax error.
-	  fixed: [ruby-core:07070]
-
-Fri Jan  6 10:16:20 2006  Steven Lumos  <steven@lumos.us>
-
-	* io.c (READ_DATA_PENDING): defined for 64bit Solaris on SPARC.
-	  [ruby-core:7057]
-	  (READ_DATA_PENDING_COUNT): ditto.
-	  (READ_DATA_PENDING_PTR): ditto.
-
-Sun Jan  1 17:07:59 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* win32/win32.c (rb_w32_seekdir): should not segfault even if passed
-	  the location which rb_w32_telldir didn't return. [ruby-core:7035]
-	  (I think HEAD implementation is better. but binary compatibility)
-
-	* test/ruby/test_dir.rb: added.
-
-Sat Dec 31 22:57:00 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_thread_save_context): should not recycle scope object used
-	  in a thread.  fixed: [ruby-dev:28177]
-
-Fri Dec 30 18:22:42 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* gc.c (garbage_collect): mark objects refered from aborting threads.
-	  [ruby-dev:28190]
-
-	* win32/Makefile.sub: VC++8 support.
-
-Fri Dec 30 14:24:53 2005  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* dir.c (glob_helper): do not use TRUE for djgpp.
-
-Fri Dec 30 04:54:40 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* file.c (eaccess): workaround for VC++8 runtime.
-
-	* win32/win32.c (ioinfo): VC++8 support.
-
-Thu Dec 29 23:59:37 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_gc_mark_threads): leave unmarked threads which won't wake
-	  up alone, and mark threads in the loading table.  [ruby-dev:28154]
-
-	* eval.c (rb_gc_abort_threads), gc.c (gc_sweep): kill unmarked
-	  threads.  [ruby-dev:28172]
-
-Thu Dec 29 17:02:07 2005  Tanaka Akira  <akr@m17n.org>
-
-	* test/ruby/envutil.rb (EnvUtil.rubybin): search "ruby" instead of
-	  "miniruby".  [ruby-dev:28140]
-
-Tue Dec 27 16:59:52 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* test/drb/drbtest.rb (DRbService::self.ext_service): increase
-	  timeout limit.  a patch from Kazuhiro NISHIYAMA
-	  <zn at mbf.nifty.com>. [ruby-dev:28132]
-
-Tue Dec 27 08:29:18 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/lib/openssl/ssl.rb (OpenSSL::SSL::SSLSocket#post_connection_chech):
-	  treat wildcard character in commonName. [ruby-dev:28121]
-
-Mon Dec 26 22:32:47 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_eval), gc.c (gc_mark_children), node.h (NEW_ALIAS,
-	  NEW_VALIAS), parse.y (fitem): allow dynamic symbols to
-	  NODE_UNDEF and NODE_ALIAS.
-	  backported from trunk.  fixed: [ruby-dev:28105]
-
-Mon Dec 26 08:50:36 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (ev_const_get): fixed a bug in constant reference during
-	  instance_eval.  [yarv-dev:707]
-
-	* eval.c (ev_const_defined): ditto.
-
-	* lib/yaml.rb (YAML::add_domain_type): typo fixed.  a patch from
-	  Joel VanderWerf <vjoel at path.berkeley.edu>.
-	  [ruby-talk:165285] [ruby-core:6995]
-
-Sat Dec 24 18:58:14 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* stable version 1.8.4 released.
-
-Fri Dec 23 10:30:23 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/digest/sha2/sha2.c (ULL): support AIX C.  a patch from
-	  Kailden <kailden at gmail.com>.  [ruby-core:06984]
-
-Wed Dec 21 16:53:06 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* file.c (w32_io_info): should return handle because FileIndex is
-	  valid only while file is open. [ruby-dev:28088]
-
-Wed Dec 21 14:53:26 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/pathname.rb (test_kernel_open): use File.identical?.
-	  [ruby-talk:171804]
-
-Tue Dec 20 22:41:17 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (eval_under_i): evaluate source in caller's frame.
-	  [ruby-dev:28076]
-
-	* eval.c (rb_call_super): use original method name on exception.
-	  [ruby-dev:28078]
-
-Tue Dec 20 13:11:59 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/syck/rubyext.c: fixed GC problem (backported HEAD 1.55 - 1.62)
-	  [ruby-dev:27839]
-
-	* ext/syck/syck.h (S_FREE): small hack. no need to check if pointer is
-	  NULL or not before S_FREE.
-
-	* st.c: uses malloc instead of xmalloc to avoid GC. syck uses st_insert
-	  in gram.c to insert node from rb_syck_bad_anchor_handler into
-	  SyckParser's hash table. if GC occurs in st_insert, it's not under
-	  SyckParser's mark system yet. so RString can be released wrongly.
-	  [ruby-dev:28057]
-
-Tue Dec 20 12:53:23 2005  why the lucky stiff  <why@ruby-lang.org>
-
-	* ext/syck/rubyext.c (syck_emitter_reset): to ensure compatibility
-	  with previous Ruby versions, documents are no longer headless.
-
-Tue Dec 20 01:46:48 2005  Tanaka Akira  <akr@m17n.org>
-
-	* io.c (rb_f_backquote): fix a GC problem on
-	  IA64 with gcc 4.0.3 20051216 (prerelease) -O3.
-
-Mon Dec 19 23:32:39 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (rb_symname_p): fixed wrong validation.  [ruby-dev:28047]
-
-Sat Dec 17 03:57:01 2005  Tanaka Akira  <akr@m17n.org>
-
-	* bignum.c (rb_big_rshift): fix a GC problem on
-	  IA64 with gcc 4.0.3 20051216 (prerelease).
-
-Sat Dec 17 03:30:23 2005  Tanaka Akira  <akr@m17n.org>
-
-	* eval.c (bmcall): fix a GC problem by tail call on
-	  IA64 with gcc 4.0.3 20051216 (prerelease).
-
-Fri Dec 16 00:54:06 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* signal.c (Init_signal): revert C++ style comment.
-	  [ruby-dev:28041]
-
-Thu Dec 15 12:35:14 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/tmpdir.rb: merged RDoc patch from Eric Hodel <drbrain at
-	  segment7.net>.  [ruby-core:06894]
-
-Thu Dec 15 01:33:31 2005  Tanaka Akira  <akr@m17n.org>
-
-	* ext/zlib/zlib.c (zstream_run): fix a GC problem by tail call on
-	  x86_64 with gcc 4.0.3 20051111 (prerelease) (Debian 4.0.2-4)
-
-Wed Dec 14 12:11:46 2005  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* test/gdbm/test_gdbm.rb: specify pid for the argument of
-	  Process.wait.  workaround for Cygwin.
-
-Wed Dec 14 12:01:26 2005  Tanaka Akira  <akr@m17n.org>
-
-	* marshal.c (r_object0): fix a GC problem for reading a bignum on
-	  IA64 with gcc 3.3.5 (Debian 1:3.3.5-13).
-
-Tue Dec 13 12:23:47 2005  Tanaka Akira  <akr@m17n.org>
-
-	* re.c (rb_reg_regcomp): fix a GC problem on x86_64 with
-	  gcc 3.3.5 (Debian 1:3.3.5-13).
-
-Tue Dec 13 01:44:16 2005  Tanaka Akira  <akr@m17n.org>
-
-	* array.c (rb_ary_diff): fix a GC problem on IA64 with
-	  gcc 3.3.5 (Debian 1:3.3.5-13).
-	  When rb_ary_push is called, there was no register which contains
-	  `hash' but `&RHASH(hash)->tbl' instead.
-
-Tue Dec 13 00:08:09 2005  Tanaka Akira  <akr@m17n.org>
-
-	* sprintf.c (rb_str_format): fix a GC problem.
-	  [ruby-dev:28001]
-
-Mon Dec 12 15:54:56 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* test/openssl/test_ssl.rb (test_parallel): call GC.start to close
-	  unused files. [ruby-dev:27981]
-
-Mon Dec 12 00:33:56 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/digest/digest.c (rb_digest_base_s_digest): add volatile to
-	  protect temporary context object.  [ruby-dev:27979]
-
-	* ext/iconv/iconv.c (Init_iconv): rb_gc_register_address() should
-	  be called before actual variable initialization.
-	  [ruby-dev:27986]
-
-Fri Dec  9 23:31:02 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/rexml/encoding.rb (encoding=): give priority to particular
-	  conversion to iconv.  [ruby-core:06520]
-
-Thu Dec  8 02:07:19 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (umethod_bind): adjust invoking class for module method.
-	  [ruby-dev:27964]
-
-Thu Dec  8 00:40:52 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (call_trace_func): klass parameter should be a
-	  class/module that defines calling method.  [ruby-talk:169307]
-
-Wed Dec  7 17:10:27 2005  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* sprintf.c (rb_f_sprintf): [ruby-dev:27967]
-
-Wed Dec  7 15:31:35 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* sprintf.c (rb_str_format): integer overflow check added.
-
-	* sprintf.c (GETASTER): ditto.
-
-Wed Dec  7 01:02:04 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/README.macosx-aqua: [new document] tips to avoid the known
-	  bug on platform specific dialogs of Tcl/Tk Aqua on MacOS X.
-
-	* ext/tk/tcltklib.c: fix bug on switching threads and waiting on the
-	  deleted interpreter on vwait and tkwait command.
-
-	* ext/tk/lib/multi-tk.rb: kill the meaningless loop for the deleted Tk
-	  interpreter.
-
-	* ext/tk/sample/demos-jp/image3.rb: [bug fix] wrong argument.
-
-	* ext/tk/sample/demos-en/image3.rb: ditto.
-
-	* ext/tk/sample/demos-jp/menu.rb: fix message for MacOS X.
-
-	* ext/tk/sample/demos-jp/menu8x.rb: ditto.
-
-	* ext/tk/sample/demos-en/menu.rb: ditto.
-
-Tue Dec  6 16:37:57 2005  Yuya Nishida  <yuya@j96.org>
-
-	* eval.c (exec_under): avoid accessing ruby_frame->prev.
-	  [ruby-dev:27948]
-
-Thu Dec  1 00:50:33 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_funcall2): allow to call protected methods.
-	  fixed: [ruby-dev:27890]
-
-Wed Nov 30 23:52:17 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (NEWHEAP, ADD2HEAP): set count after pointer was set.
-	  fixed: [ruby-dev:27896]
-
-Wed Nov 30 13:43:07 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* misc/ruby-mode.el (ruby-expr-beg): support $! at the end of
-	  expression.   [ruby-dev:27868]
-
-Mon Nov 28 18:55:43 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/socket/socket.c (init_inetsock_internal): remove setting
-	  SO_REUSEADDR option on server socket on Cygwin.
-	  fixed: [ruby-core:6765] ([ ruby-Bugs-2872 ])
-
-Mon Nov 28 13:08:54 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* win32/win32.c (rb_w32_strerror): remove all CR and LF. (avoid broken
-	  error message on bccwin32 + winsock)
-
-Mon Nov 28 09:21:49 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* lib/mkmf.rb (create_makefile): should not change sodir with
-	  dir.gsub!. (bccwin32 failed to install third party exntesions)
-	  [ruby-dev:27834]
-
-Sun Nov 27 00:56:13 2005  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* lib/wsdl/xmlSchema/complexContent.rb: missing
-	  ComplexContent#elementformdefault method.
-
-Sat Nov 26 19:57:45 2005  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* dln.c (conv_to_posix_path): should initialize posix.
-
-Thu Nov 24 21:05:58 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* configure.in (AC_CHECK_FUNCS): need to check link().
-	  fixed: [ruby-dev:27814]
-
-Thu Nov 24 01:22:25 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* file.c (w32_io_info): CreateFile failed on Win9x if file was already
-	  opened. (FILE_SHARE_READ was needed, but actually I don't understand
-	  the flags of CreateFile well...)
-
-Wed Nov 23 20:59:01 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: add Tk.pkgconfig_list and Tk.pkgconfig_get
-	  [Tk8.5 feature].
-
-	* ext/tk/lib/tk/text.rb: supports new indices modifires on a Text
-	  widget [Tk8.5 feature].
-
-	* ext/tk/lib/tk/virtevent.rb: add TkNamedVirtualEvent.
-
-	* ext/tk/lib/tk/autoload.rb: ditto.
-
-	* ext/tk/lib/tk/event.rb: add :data key for virtual events [Tk8.5
-	  feature].
-
-Wed Nov 23 18:55:31 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* file.c (w32_io_info): should not call GetFileInformationByHandle
-	  for pipe.
-
-	* file.c (w32_io_info): checks return value from rb_w32_get_osfhandle.
-
-	* file.c (w32_io_info): now can identify directory on WinNT.
-
-Wed Nov 23 03:40:49 2005  Guy Decoux  <ts@moulon.inra.fr>
-
-	* re.c (KR_REHASH): should cast to unsigned for 64bit CPU.
-	  [ruby-core:06721]
-
-Wed Nov 23 11:01:33 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* intern.h, file.c: failed to compile on windows.
-
-Wed Nov 23 07:26:44 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/extconf.rb: check for X509V3_EXT_nconf_nid.
-
-	* ext/openssl/ossl_x509ext.c (MakeX509ExtFactory): should use
-	  OPENSSL_malloc to allocate X509V3_CTX.
-
-	* ext/openssl/ossl_x509ext.c (ossl_x509extfactory_create_ext): use
-	  X509V3_EXT_nconf_nid to avoid SEGV (and to build extensions which
-	  values are placed in separate section).
-
-	* test/openssl/test_x509ext.rb: new file.
-
-Wed Nov 23 01:22:57 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (test_identical): test if two files are identical.
-
-	* file.c (rb_f_test): support DOSISH systems where st_ino is not
-	  reliable.  fixed: [ruby-core:06672]
-
-	* win32.h, win32.c (rb_w32_osid): check the running platform.
-
-Tue Nov 22 23:52:06 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse.rb: match incomplete (in current enconding) multibyte
-	  string.  http://inamode6.tokuhirom.dnsalias.org/show/1551
-
-Tue Nov 22 18:36:11 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* win32/win32.c (winnt_stat): set mapped errno instead of ENOENT.
-
-Tue Nov 22 14:46:57 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* file.c (rb_file_s_basename): skip slashes just after UNC top slashes.
-
-	* test/ruby/test_path.rb (test_dirname, test_basename): follow new
-	  spec. and add new tests.
-
-Tue Nov 22 13:18:32 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* win32/win32.c (rb_w32_stat): Dir.chdir('//server/shared');
-	  p Dir.glob('*') should work on WinNT. (implemented our own
-	  stat(2) on WinNT) [ruby-list:41552] [ruby-dev:27711]
-
-Tue Nov 22 02:31:53 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tkextlib/tile.rb: bug fix (Tk::Tile::USE_TTK_NAMESPACE
-	  is not defined).
-
-Tue Nov 22 01:45:21 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_file_s_basename): DOSISH_UNC is defined on cygwin but
-	  DOSISH is not.  fixed: [ruby-dev:27797]
-
-Mon Nov 21 22:50:48 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_path_skip_prefix, rb_file_s_basename): UNC without path
-	  should not be splitted.  fixed: [ruby-dev:27776] [ruby-dev:27786]
-
-	* parse.y (dsym): prohibit empty symbol literal by interpolation.
-	  fixed: [ruby-talk:166529]
-
-Mon Nov 21 16:03:48 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/setup.mk: findstr doesn't exist on win9x.
-	  fixed: [ruby-dev:27756]
-
-Sun Nov 20 22:34:06 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (rb_symname_p): [ not followed by ] is not valid symbol.
-	  fixed: [ruby-talk:166520]
-
-Sat Nov 19 19:57:54 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/fileutils.rb (FileUtils::ln): ln documentation fix.
-	  [ruby-core:06661]
-
-Sat Nov 19 07:34:32 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/font.rb: remove dependency on Ruby's version (1.8
-	  or 1.9).
-
-	* ext/tk/lib/tkextlib/ICONS/icons.rb: ditto.
-
-	* ext/tk/sample/tkextlib/treectrl/demo.rb: ditto.
-
-Fri Nov 18 17:57:08 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* file.c (rb_file_s_dirname): should use skipprefix for UNC path.
-	  pointed out by nobu ([ruby-dev:27744]). fixed: [ruby-core:5076]
-
-Fri Nov 18 17:35:09 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/multi-tk.rb: add restriction to access the entried
-	  command table and manipulate other IPs (for reason of security).
-	  Now, a IP object can be controlled by only its master IP or the
-	  default IP.
-
-	* ext/tk/lib/remote-tk.rb: add restriction to manipulate.
-
-	* ext/tk/tcltklib.c (ip_is_slave_of_p): add TclTkIp#slave_of?(ip)
-	  to check manipulability.
-
-	* ext/tk/lib/tk.rb: bug fix on handling of Tcl's namespaces.
-
-	* ext/tk/lib/tk/namespace.rb: ditto.
-
-Fri Nov 18 17:26:06 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* file.c (rb_file_s_dirname): added checks for some patterns with drive
-	  letter. fixed: [ruby-dev:27738]
-
-	* test/ruby/test_path.rb (test_dirname): added tests for above
-	  patterns.
-
-Fri Nov 18 12:18:02 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* win32/win32.h (S_IFIFO): r,w = IO.pipe; r.stat.pipe? now
-	  returns true on VisualC++6.
-
-Wed Nov 16 23:24:17 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk (static-ruby): overridable.
-
-	* ext/extmk.rb (parse_args): force to link extensions statically only
-	  if static is given for extstatic.
-
-	* ext/extmk.rb (RUBY, RUBYW): overridable.
-
-Tue Nov 15 23:46:35 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/find.rb (Find::find): should not ignore symbolic links to
-	  non-existing files.  [ruby-talk:165866]
-
-Tue Nov 15 16:23:26 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* array.c (rb_ary_fill): previous commit disabled this usage:
-
-	    a = [0,1,2,3,4,5,6,7,8,9]
-	    a.fill {|i| a[i] * 10} #=> [nil, nil, ...., nil]
-
-	  previous commit has the advantage of early garbage collection, but
-	  potensially this would break some script. so I reverted behavior.
-
-Tue Nov 15 16:04:10 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* array.c (rb_ary_fill): tail elements were vanished when the middle
-	  part of array was filled. (ie: [0,1,2,3,4].fill(-1,2,1) => [0,1,-1])
-
-	* test/ruby/test_array.rb (test_fill): added.
-
-Tue Nov 15 14:39:16 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* array.c (rb_ary_fill): should adjust array length correctly when
-	  an array is expanded in the fill process.  [ruby-core:06625]
-
-Mon Nov 14 23:49:57 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_file_s_readlink): ERANGE will occur only on GPFS.
-	  [ruby-dev:27699]
-
-Mon Nov 14 17:36:22 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* array.c (rb_ary_first): RDoc update from Daniel Berger
-	  <djberg96@yahoo.com>.  [ruby-core:06577].
-
-Fri Nov 11 10:31:44 2005  Zach Dennis  <zdennis@mktec.com>
-
-	* ext/socket/socket.c: Socket Documentation. [ruby-core:6552]
-
-Fri Nov 11 08:20:56 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* Makefile.in (OUTFLAG): keep trailing spaces.  [ruby-dev:27666]
-
-	* mkconfig.rb: substitution refereces added.
-
-Fri Nov 11 07:44:18 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* configure.in: undef HAVE_LINK on BeOS. (link(2) always returns
-	  EINVAL, and this causes error in test/fileutils.)
-
-	* file.c: overwride chown(2) and fchown(2) on BeOS. (these functions
-	  should not change user/group id if -1 is passed as corresponding
-	  argument, and this causes error in test/fileutils too)
-	  [ruby-dev:27672]
-
-	* file.c (rb_file_s_link): checks HAVE_LINK.
-
-Tue Nov  8 15:32:27 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/drb/ssl.rb (DRb::SSLConfig#accept): fixed typo.
-	  [ruby-dev:27560] [ruby-core:4627]
-
-Mon Nov  7 13:43:51 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/stubs.c (_nativethread_consistency_check): use simpler
-	  (low cost) way to check whether the Tcl interpreter was compiled
-	  with threads enabled of not.
-
-	* ext/tk/tcltklib.c: reduce warnings.
-
-	* ext/tk/tkutil/tkutil.c: ditto.
-
-Mon Nov  7 00:06:58 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* lib/yaml.rb: removed :nodoc: to generate Kernel doc. [ruby-core:6324]
-
-Sun Nov  6 23:39:13 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/iconv/iconv.c (Iconv::BrokenLibrary): exception when detected a
-	  bug of underlying library.
-
-Sun Nov  6 21:46:59 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/tk/stubs.c (ruby_tcl_create_ip_and_stubs_init): should touch
-	  interpreter after initialization is done. [ruby-dev:27638]
-
-Sun Nov  6 20:13:27 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_file_s_readlink): readlink(2) on AIX fails with ERANGE if
-	  buffer size is less than required.  fixed: [ruby-dev:27634]
-
-Wed Nov  2 20:25:28 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/extconf.rb: ext/tk/extconf.rb: change the check parameter
-	  for Win32.
-
-Wed Nov  2 20:14:53 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib: merge into ext/tk and remove.
-
-Wed Nov  2 19:03:06 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c (ip_rbUpdateObjCmd,
-	  ip_rb_threadUpdateObjCmd): passed improper flags to DoOneEvent().
-
-	* ext/tk/tkutil.c: use rb_obj_respond_to() instead of rb_respond_to().
-
-Tue Nov  1 14:20:11 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_call_super): should call method_missing if super is
-	  called from Kernel method.
-
-	* eval.c (exec_under): frame during eval should preserve external
-	  information.
-
-Tue Nov  1 10:50:17 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/extconf.rb: should check ERR_peek_last_error().
-	  [ruby-dev:27597]
-
-	* ext/openssl/ossl.c (ossl_raise): ditto.
-
-Mon Oct 31 17:34:46 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* configure.in: use proper option for Sun linker. A patch from
-	  Shinya Kuwamura <kuwa at labs.fujitsu.com>.  [ruby-dev:27603]
-
-Mon Oct 31 11:27:22 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/gdbm/test_gdbm.rb, test/sdbm/test_sdbm.rb (test_s_open_error):
-	  skip on Win32/DOS platforms.
-
-Mon Oct 31 05:49:23 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_cipher.c (ossl_cipher_update): input data must
-	  not be empty. [ruby-talk:161220]
-
-	* test/openssl/test_cipher.rb: add test for Cipher#update("").
-
-Mon Oct 31 05:37:20 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/httpservlet/cgihandler.rb
-	  (WEBrick::HTTPServlet::CGIHandler#do_GET): the value of Set-Cookie:
-	  header field should be splited into each cookie.  [ruby-Bugs:2199]
-
-	* lib/webrick/cookie.rb (WEBrick::Cookie.parse_set_cookie): new method
-	  to parse the value of Set-Cookie: header field.
-
-	* test/webrick/test_cookie.rb, test/webrick/test_cgi.rb,
-	  test/webrick/webrick.cgi: add some test for cookie.
-
-Mon Oct 31 03:19:36 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/readline/readline.c (readline_readline): type check.
-	  [ruby-core:6089]
-
-	* numeric.c (fix_rshift): RDoc fix.  [ruby-core:6351]
-
-	* util.h (strtod): add #undef for platforms defines strtod()
-	  macro.   [ruby-dev:27563]
-
-Mon Oct 31 02:35:59 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* test/ruby/test_float.rb (test_precision): test by assert_in_delta.
-	  [ruby-dev:27575]
-
-Sat Oct 29 01:58:25 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/etc/etc.c: document update from mathew <meta@pobox.com>.
-	  [ruby-core:06473]
-
-	* ext/fcntl/fcntl.c: ditto.
-
-Thu Oct 27 16:45:31 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (scan_once): wrong condition to use mbclen2().
-	  [ruby-dev:27535]
-
-Wed Oct 26 09:27:27 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/syck/implicit.c (syck_type_id_to_uri): should return
-	  newly allocated memory. otherwise, type_id will be freed
-	  twice. [ruby-dev:27384] [ruby-core:6385]
-
-Wed Oct 26 09:04:51 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ruby.h (Qfalse, Qtrue, Qnil, Qundef): make sure these immediate
-	  values have VALUE type. there is an environment where sizeof(VALUE)
-	  != sizeof(int) like IA64. if 32bit integer (Qtrue) is passed to ANYARGS
-	  and received by 64bit integer (VALUE), upper bits may have garbage value.
-	  [ruby-dev:27513]
-
-Wed Oct 26 01:58:19 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (RUBY_EXTERN): macro to export symbols in shared
-	  library.  [ruby-core:05528]
-
-	* defines.h, {bcc32,win32,wince}/Makefile.sub (RUBY_EXTERN): moved to
-	  configuration pass.
-
-	* ext/extmk.rb (extmake): RUBY_EXTERN for static linked extensions.
-
-Tue Oct 25 15:32:00 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/rational.rb: applied documentation patch from Gavin Sinclair
-	  <gsinclair@gmail.com>.  [ruby-core:06364]
-
-	* lib/irb.rb (IRB::Irb::eval_input): handle prompts with newlines
-	  in irb auto-indentation mode.  [ruby-core:06358]
-
-Tue Oct 25 02:12:08 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/rdoc/markup/simple_markup.rb (SM::SimpleMarkup::LABEL_LIST_RE):
-	  reduce redundant backtrack.  [ruby-talk:161771]
-
-Tue Oct 25 00:27:35 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/rinda/*: RDoc documentation from Eric Hodel
-	  <drbrain@segment7.net> added.
-
-Mon Oct 24 21:14:29 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in, io.c: use sys/syscall.h if syscall.h is not available.
-	  [ruby-core:06247]
-
-Mon Oct 24 20:49:45 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/Win32API/lib/win32/resolv.rb (get_info): support multiple DNS.
-	  fixed: [ruby-list:40058], [ruby-dev:27479]
-
-Mon Oct 24 07:57:56 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/tk/lib/tk/canvas.rb (TkCanvasItemConfig::__item_val2ruby_optkeys):
-	  typo fixed.  [ruby-talk:162187]
-
-	* ext/tk/lib/tk/menu.rb (TkMenuEntryConfig::__item_val2ruby_optkeys):
-	  ditto.  [ruby-core:06359]
-
-Sun Oct 23 21:50:15 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/enumerator/enumerator.c: applied documentation patch from
-	  James Edward Gray II <james@grayproductions.net>.
-	  [ruby-core:06348]
-
-Sun Oct 23 07:11:11 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/extconf.rb: improve messages [ruby-core:06325].
-
-	* ext/tk/lib/tk.rb, ext/tk/lib/tk/canvas.rb, ext/tk/lib/tk/entry.rb,
-	  ext/tk/lib/tk/frame.rb, ext/tk/lib/tk/image.rb,
-	  ext/tk/lib/tk/itemconfig.rb, ext/tk/lib/tk/labelframe.rb,
-	  ext/tk/lib/tk/listbox.rb, ext/tk/lib/tk/menu.rb,
-	  ext/tk/lib/tk/radiobutton.rb, ext/tk/lib/tk/scale.rb,
-	  ext/tk/lib/tk/spinbox.rb, ext/tk/lib/tk/text.rb,
-	  ext/tk/lib/tk/toplevel.rb: improve conversion of option values.
-
-	* ext/tk/lib/tkextlib/*: ditto.
-
-	* ext/tk/lib/tkextlib/*: update to support ActiveTcl8.4.11.2.
-
-	* ext/tk/lib/tkextlib/trofs/*: support Trofs 0.4.3.
-
-	* ext/tk/lib/tkextlib/tile/*: support Tile 0.7.2.
-
-	* ext/tk/lib/tkextlib/vu/*: support vu 2.3.0.
-
-	* ext/tk/lib/tkextlib/tcllib/*: support Tcllib 1.8 (Tklib 0.3).
-
-Sat Oct 22 23:54:07 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb, lib/mkmf.rb (with_config): support --with-extension
-	  options.  [ruby-dev:27449]
-
-Sat Oct 22 13:26:57 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* object.c (sym_inspect), parse.y (parser_yylex, rb_symname_p): check
-	  if valid as a symbol name more strictly.  [ruby-dev:27478]
-
-	* test/ruby/test_symbol.rb: tests for [ruby-core:03573].
-
-	* time.c (rb_strftime): removed meaningless volatile modifiers, and
-	  concatenate successive nul characters at once.  [ruby-dev:27472]
-
-Fri Oct 21 19:21:56 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* rubysig.h (CHECK_INTS): fixed typo. (I believe bit-or is improper)
-
-Fri Oct 21 17:49:32 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* bin/erb (ERB::Main::run): typo fixed.  [ruby-core:06337]
-
-Fri Oct 21 15:27:17 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* 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)
-	  [ruby-dev:27055]
-
-	* time.c: should use LONG_LONG instead of `long long'.
-
-Thu Oct 20 09:37:15 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* lib/mkmf.rb (create_makefile): Borland make seems not to allow
-	  empty dependency list. If this change is not good, please correct
-	  it.
-
-Thu Oct 20 07:55:09 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (create_makefile): get rid of a restriction
-	  of Borland make.  fixed: [ruby-dev:27460]
-
-Thu Oct 20 00:13:18 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* rubysig.h (CHECK_INTS): fix typo.
-
-Wed Oct 19 23:58:03 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (create_makefile): do not create unnecessary empty
-	  directories.  fixed: [ruby-dev:27451]
-
-Wed Oct 19 19:26:15 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (rb_gc_mark_parser): get rid of segfault with old yacc.
-	  fixed: [ruby-dev:27439]
-
-Wed Oct 19 08:28:32 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_file_join): elements may contain null pointer strings.
-	  report and fixed by Lloyd Zusman (hippoman): [ruby-core:06326]
-
-Wed Oct 19 02:34:33 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c, gc.c, time.c: made internal symbols static.  [ruby-dev:27435]
-
-Wed Oct 19 01:27:07 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* regex.c (re_compile_pattern): numeric literal inside character class
-	  disabled succeeding backtrack.  fixed: [ruby-list:41328]
-
-Mon Oct 17 21:18:50 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (parser_heap): byacc never free parser stack.
-	  fixed: [ruby-dev:27428]
-
-Mon Oct 17 16:04:47 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* file.c (chmod_internal, lchmod_internal): fixed type of 2nd argument.
-
-Sun Oct 16 22:16:51 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb: omit non-existing directories.
-
-Sun Oct 16 14:30:05 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/rinda/rinda.rb (Rinda::Tuple#initialize): check remote hash
-	  tuple. fixed: [ruby-list:41227]
-
-	* test/rinda/test_rinda.rb: test it.
-
-Sun Oct 16 03:38:07 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* rubysig.h (CHECK_INTS): prevent signal handler to run during
-	  critical section.  [ruby-core:04039]
-
-	* eval.c (load_wait): need not to call rb_thread_schedule()
-	  explicitly.  [ruby-core:04039]
-
-	* eval.c (rb_thread_schedule): clear rb_thread_critical.
-	  [ruby-core:04039]
-
-Sat Oct 15 19:56:38 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* bin/erb: typo fixed, again. thanks, Doug Kearns.
-
-Fri Oct 14 22:08:26 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (ioctl): should set errno.
-
-Fri Oct 14 16:57:32 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/config.rb (Config::FileHandler): :UserDir should be nil.
-	  It is harmful to permit the access to ~/public_html by default.
-	  suggested by Hiroyuki Iwatsuki.
-
-Thu Oct 13 23:29:51 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (HEAPCNT): bison allocates indivisible size.
-	  fixed: [ruby-core:06261]
-
-	* io.c, pack.c, ext/syck/rubyext.c, ext/syck/syck.h, missing/isinf.c:
-	  get rid of warnings.  fixed: [ruby-core:06247]
-
-Wed Oct 12 12:52:57 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl.c (Init_openssl): should call
-	  OpenSSL_add_ssl_algorithms().
-
-Wed Oct 12 11:08:54 2005  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* file.c (rb_f_test): typo in RDoc comments.
-
-Tue Oct 11 21:41:58 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_obj_respond_to): check if obj responds to the given
-	  method with the given visibility.  [ruby-dev:27408]
-
-	* eval.c (rb_respond_to): conform to Object#respond_to?.  [ruby-dev:27411]
-
-Tue Oct 11 00:01:21 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* st.c (st_free_table): do not call free() but xfree().
-	  [ruby-core:06205]
-
-Sat Oct  8 20:04:40 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (Init_Binding): add Binding#dup method.  [yarv-dev:666]
-
-	* parse.y (rb_parser_malloc, rb_parser_free): manage parser stack on
-	  heap.  [ruby-list:41199]
-
-	* ext/iconv/charset_alias.rb: parse config.charset_alias file directly.
-
-Fri Oct  7 09:54:00 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/cgi.rb (CGI::Cookie::parse): Cookies from Nokia devices may
-	  not be parsed correctly.  A patch from August Z. Flatby
-	  (augustzf) in [ruby-Patches-2595].  [ruby-core:06183]
-
-Thu Oct  6 20:12:16 2005  Minero Aoki  <aamine@loveruby.net>
-
-	* ext/strscan/strscan.c (strscan_free): remove useless code.
-	  [ruby-dev:26368] [ruby-dev:27389]
-	  (backported from trunk, rev 1.22)
-
-Wed Oct  5 04:42:38 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/xmlrpc/server.rb (XMLRPC::Server#initialize): should mount the
-	  servlet on "/".
-
-Wed Oct  5 03:59:09 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/xmlrpc/server.rb (XMLRPC::Server#serve): delete wrong call
-	  of "join".
-
-Mon Oct  3 00:04:00 2005  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* pack.c (EXTEND16): [ruby-dev:27383]
-
-Thu Sep 29 10:26:18 2005  Tanaka Akira  <akr@m17n.org>
-
-	* ext/dl/dl.c (rb_io_to_ptr): abolish sizeof(FILE).
-	  [ruby-dev:27317]
-
-Thu Sep 29 07:22:05 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* evalc. (rb_f_send): underscores need to be escaped.
-	  fixed by Doug Kearns.  [ruby-core:06053]
-
-Thu Sep 29 00:57:35 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (ev_const_get), variable.c (rb_const_get_0): retry only when
-	  autoload succeeded.
-
-	* variable.c (rb_autoload_load): now return true if autoload
-	  succeeded.  fixed: [ruby-dev:27331]
-
-Wed Sep 28 23:42:15 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (apply2files): add prototype.
-
-	* file.c (rb_stat_inspect): constified.
-
-	* class.c (rb_mod_init_copy, rb_class_init_copy), file.c (rb_stat_init_copy),
-	  numeric.c (num_init_copy), object.c (rb_obj_init_copy, Init_Object),
-	  re.c (match_init_copy, rb_reg_init_copy), time.c (time_init_copy):
-	  undocumented.
-
-Wed Sep 28 23:09:23 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/delegate.rb: document update from James Edward Gray II
-	  <james@grayproductions.net>.  [ruby-core:06027]
-
-Wed Sep 28 15:14:19 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/cgi.rb (WEBrick::CGI#start): req.query_string should
-	  refer the value of QUERY_STRING. [ruby-list:41186]
-
-	* lib/webrick/httprequest.rb (WEBrick::HTTPRequest#query_string=):
-	  add new method.
-
-Wed Sep 28 10:45:44 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c: cannot compile with Tcl/Tk8.0.x
-	  [ruby-dev:27335].
-
-Wed Sep 28 08:12:18 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (read_buffered_data): check if reached EOF.  fixed: [ruby-dev:27334]
-
-Wed Sep 28 07:56:52 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/yaml/basenode.rb (YAML::BaseNode::match_segment): fix typo.
-	  [ruby-dev:27237], [ruby-core:05854]
-
-	* lib/yaml/tag.rb (Module#yaml_as): suppress warnings.
-
-	* lib/yaml/types.rb (YAML::PrivateType, YAML::DomainType): ditto.
-
-Wed Sep 28 03:23:35 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* rubysig.h: fixed build problem with --enable-pthread on platforms
-	  which don't have setitimer().
-
-Mon Sep 26 22:32:13 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (set_trace_func): add rb_secure(4) to prevent adding
-	  tracing function.
-
-Sun Sep 25 12:05:10 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* bin/erb: typo fixed.
-
-Sun Sep 25 01:46:43 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* misc/ruby-mode.el (ruby-calculate-indent): arrange deep-indent
-	  closing parenthesis at same column as the opening.
-
-Sun Sep 25 00:42:11 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* misc/ruby-mode.el (ruby-expr-beg): deal with heredoc separately.
-	  fixed: [ruby-list:41168]
-
-	* misc/ruby-mode.el (ruby-calculate-indent): not to deepen indent
-	  level for continuous line inside parentheses.
-	  http://nabeken.tdiary.net/20050915.html#p02
-
-Sun Sep 25 00:18:11 2005  Tanaka Akira  <akr@m17n.org>
-
-	* eval.c (unknown_node): show more information.  [ruby-dev:26196]
-
-Sat Sep 24 08:56:01 2005  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/fileutils.rb (cd): no longer accept :noop option, related
-	  code is useless (backported from trunk, rev 1.67).
-	  [ruby-core:05858] [ruby-Bugs:2494]
-
-Sat Sep 24 08:38:07 2005  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/fileutils.rb: fix visibility of FileUtils::NoWrite, Verbose,
-	  DryRun (backported from trunk, rev 1.66). [ruby-core:05954]
-
-	* test/fileutils/test_nowrite.rb: test it.
-
-	* test/fileutils/test_dryrun.rb: new file.
-
-	* test/fileutils/test_verbose.rb: new file.
-
-Sat Sep 24 02:40:20 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/delegate.rb: document update from James Edward Gray II
-	  <james@grayproductions.net>.  [ruby-core:05942]
-
-Thu Sep 22 23:36:24 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (find_executable0): default path if environment is not
-	  set.  [ruby-dev:27281]
-
-Thu Sep 22 16:33:12 2005  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* test/readline/test_readline.rb (TestReadline::replace_stdio):
-	  merged the patch of [ruby-dev:25232] instead of [ruby-dev:25223].
-
-Wed Sep 21 23:30:44 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (configuration): generalized nmake dependent code.
-
-Wed Sep 21 09:07:55 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* stable version 1.8.3 released.
-
-Wed Sep 21 08:52:25 2005  why the lucky stiff  <why@ruby-lang.org>
-
-	* ext/syck/token.c: correctly compute identation of a block
-	  scalar's parent node. [ruby-talk:150620]
-
-Wed Sep 21 08:20:24 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* README.EXT, README.EXT.ja: add new features.
-
-Wed Sep 21 07:43:58 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse.rb (default_argv, Arguable#options): defaults strings
-	  to be parsed to Arguable instance.
-
-Wed Sep 21 02:44:09 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* file.c (path_check_0): disallow sticky world writable directory
-	  in PATH (and $LOAD_PATH).  [ruby-dev:27226]
-
-	* file.c (fpath_check): typo fixed.
-
-Tue Sep 20 22:29:49 2005  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* test/wsdl/simpletype/rpc/test_rpc.rb, test/wsdl/ref/test_ref.rb,
-	  test/wsdl/any/test_any.rb test/soap/wsdlDriver/test_calc.rb:
-	  suppress deliberate warnings with $VERBOSE = nil.
-
-Tue Sep 20 21:26:23 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/io/wait/lib/nonblock.rb: disable on platforms non-blocking flag
-	  is not available.  fixed: [ruby-dev:27187]
-
-Tue Sep 20 18:23:04 2005  Tanaka Akira  <akr@m17n.org>
-
-	* eval.c (thread_mark): mark th->last_status.  [ruby-dev:27179]
-
-Tue Sep 20 18:20:33 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/yaml.rb: require 'yaml/constants'.  [ruby-core:5776]
-
-Tue Sep 20 17:48:34 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/xmlrpc/client.rb (XMLRPC::Client::do_rpc): add charset
-	  information to content-type header.[ruby-core:5127]
-
-	* lib/xmlrpc/server.rb (CGIServer::serve): ditto.
-
-	* lib/xmlrpc/server.rb (ModRubyServer::serve): ditto.
-
-	* lib/xmlrpc/server.rb (WEBrickServlet::service): ditto.
-
-Tue Sep 20 17:34:46 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* test/webrick/test_cgi.rb: set ENV["PATH"] to CGIEnvPath on
-	  windows. bcc32's runtime is not installed into system directory,
-	  so it cannot be found without this setting. [ruby-dev:27166]
-
-Tue Sep 20 17:10:38 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* test/dbm/test_dbm.rb (TestDBM::test_s_open_error): remove
-	  test_s_open_error test to detect duplicate open.
-	  [ruby-dev:27202]
-
-Tue Sep 20 17:08:31 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* io.c: PIPE_BUF is not defined on BeOS. use _POSIX_PIPE_BUF instead.
-	  [ruby-dev:27185]
-
-Tue Sep 20 16:53:53 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* test/readline/test_readline.rb (TestReadline::replace_stdio):
-	  BSD seek support from [ruby-dev:25223].  fixed: [ruby-dev:27150]
-
-Tue Sep 20 15:39:40 2005  why the lucky stiff  <why@ruby-lang.org>
-
-	* ext/syck/emitter.c (syck_scan_scalar): prevent indicators from
-	  appearing alone or at the end of plain scalars. [ruby-core:5826]
-
-	* ext/syck/emitter.c (syck_emit_scalar): treat typed scalar nodes
-	  as complex keys.
-
-	* lib/syck.h: version 0.60.
-
-	* lib/yaml/basenode.rb (YAML::BaseNode#at): transform keys during
-	  key searches.
-
-	* ext/syck/rubyext.c: loading of binary-typed nodes.  prevent
-	  emission of plain strings that look like symbols, but which aren't.
-
-Tue Sep 20 05:50:22 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* test/xmlrpc/test_webrick_server.rb (setup_http_server):
-	  should not include 'webrick/https' unless 'use_ssl' because
-	  it fails where openssl is not installed.
-
-Tue Sep 20 00:34:07 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (io_close): call rb_io_close() directly if io is a T_FILE
-	  object.  [ruby-dev:27156]
-
-Mon Sep 19 19:09:08 2005  Minero Aoki  <aamine@loveruby.net>
-
-	* file.c (rb_file_chown): should accept nil. [ruby-dev:27171]
-	  (backport from trunk, rev 1.208)
-
-Mon Sep 19 18:35:13 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/dl/dl.c (rb_io_to_ptr): fix DragonFlyBSD support.
-	  [ruby-dev:27151]
-
-Mon Sep 19 14:17:04 2005  Minero Aoki  <aamine@loveruby.net>
-
-	* ext/syck/emitter.c (syck_emit): passing an int* value to the
-	  long* parameter causes unaligned access on LP64 systems.
-	  [ruby-dev:27161]
-
-Mon Sep 19 13:44:03 2005  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/win32ole.c: avoid core dump with WIN32OLE_EVENT.
-	  [ruby-dev:27133]
-
-Mon Sep 19 10:36:06 2005  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/fileutils.rb (cp_r): default is :dereference_root=>true for
-	  backward compatibility. [ruby-dev:27145]
-
-	* test/fileutils/test_fileutils.rb (test_cp_r): test it.
-
-Mon Sep 19 09:57:39 2005  Minero Aoki  <aamine@loveruby.net>
-
-	* test/fileutils/test_fileutils.rb: backported from trunk (1.36).
-	  (again) [ruby-dev:27145]
-
-Mon Sep 19 07:45:37 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_pkey.h, ossl_pkey_rsa.c, ossl_pkey_dsa.c:
-	  an instance variable "private" is added to OpenSSL::PKey class.
-	  this ivar is a flag that shows whether there is a private key
-	  in the instance.
-
-	* ext/openssl/ossl_engine.c: (ossl_engine_load_privkey): set private
-	  key flag.
-
-Mon Sep 19 06:41:32 2005  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/fileutils.rb: backported from trunk (rev 1.65):
-
-	* lib/fileutils.rb (rm_r): new option :secure.
-
-	* lib/fileutils.rb (rm_rf): new option :secure.
-
-	* lib/fileutils.rb: new method #remove_entry_secure.
-
-	* lib/fileutils.rb (cd): remove option :noop.
-
-	* lib/fileutils.rb (cp_r): new option :dereference_root.
-
-	* lib/fileutils.rb (cp_r): new option :dereference_root.
-
-	* lib/fileutils.rb: new method #remove_entry.
-
-	* lib/fileutils.rb: new method #chmod_R.
-
-	* lib/fileutils.rb: new method #chown.
-
-	* lib/fileutils.rb: new method #chown_R.
-
-	* lib/fileutils.rb: new method .commands.
-
-	* lib/fileutils.rb: new method .options.
-
-	* lib/fileutils.rb: new method .have_option?.
-
-	* lib/fileutils.rb: new method .options_of.
-
-	* lib/fileutils.rb: new method .collect_method.
-
-	* lib/fileutils.rb: use module_function instead of single extend.
-
-	* test/fileutils/test_fileutils.rb: backported from trunk (1.36).
-
-Mon Sep 19 03:17:48 2005  Tanaka Akira  <akr@m17n.org>
-
-	* file.c (rb_thread_flock): wrap the flock system call by
-	  TRAP_BEG/TRAP_END to enable signals.  [ruby-dev:27122]
-
-	* ext/socket/socket.c (bsock_send): wrap the sendto and send system
-	  call by TRAP_BEG/TRAP_END to enable signals when writing to a socket
-	  which is full.  [ruby-dev:27132]
-
-	* io.c (rb_io_syswrite): wrap the write system call by
-	  TRAP_BEG/TRAP_END to enable signals when writing to a pipe which is
-	  full.  [ruby-dev:27134]
-
-Mon Sep 19 03:02:08 2005  Tanaka Akira  <akr@m17n.org>
-
-	* io.c (io_fwrite): wrap the write system call by TRAP_BEG/TRAP_END to
-	  enable signals when writing to a pipe which is full.
-
-Sun Sep 18 02:10:47 2005  why the lucky stiff  <why@ruby-lang.org>
-
-	* lib/yaml/rubytypes.rb: remove comments that are bungling up
-	  the rdoc and ri output.  output symbols as plain scalars.
-
-	* ext/syck/rubyext.c (syck_emitter_reset): emit headless
-	  documents always.
-
-	* ext/syck/emitter.c (syck_scan_scalar): quote scalars with any
-	  kind of surrounding line space, tabs or spaces alike.
-
-	* ext/syck/token.c: accept tabs as whitespace, not for indentation,
-	  but strip from plain scalars.
-
-	* test/yaml/test_yaml.rb: remove outdated tests.
-
-Sat Sep 17 23:25:04 2005  sheepman  <sheepman@sheepman.sakura.ne.jp>
-
-	* lib/mathn.rb (Rational::inspect): should preserve original
-	  operand.  [ruby-core:05806]
-
-Sat Sep 17 23:20:27 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/cgi.rb (CGI::Cookie): should handle multiple values for a
-	  cookie name.  [ruby-talk:156140]
-
-Sat Sep 17 10:42:13 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/multi-tk.rb: MultiTkIp#eval_string and bg_eval_string
-	  should call Kernel.eval on caller's safe-level instead of slave's
-	  safe-level (Of course, the given script should be evaluated on
-	  slave's safe-level).
-
-Sat Sep 17 09:45:26 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (rb_str_substr): should propagate taintness even for
-	  empty strings.  [ruby-dev:27121]
-
-	* string.c (rb_str_aref): should infect result if range argument
-	  is tainted.  [ruby-dev:27121]
-
-Sat Sep 17 08:35:39 2005  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/maker/base.rb (RSS::Maker::ItemsBase#normalize): fixed
-	  strange RSS::Maker::Item#max_size behavior.
-	  Thanks to Kazuhiko <kazuhiko@fdiary.net>.
-
-	* test/rss/test_maker_1.0.rb (RSS::TestMaker10#test_items): ditto.
-
-Fri Sep 16 23:09:20 2005  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/win32ole.c (ole_search_event_at): bug fix
-	  in ext/win32ole/sample/ienavi.rb.
-
-	* ext/win32ole/win32ole/tests/testOLEEVENT.rb: ditto.
-
-Fri Sep 16 22:41:18 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_file_s_extname): empty string for path name ending with a
-	  period.  fixed: [ruby-core:05651]
-
-	* file.c (rb_file_join): smarter behavior at edge cases.
-	  fixed: [ruby-core:05706]
-
-Fri Sep 16 18:34:01 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/syck/node.c (syck_replace_str): was using return from the
-	  void function.  a patch from MIYAMUKO Katsuyuki
-	  <miyamuko at mtb.biglobe.ne.jp>.  [ruby-dev:27111]
-
-Fri Sep 16 14:48:48 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/multi-tk.rb: fix typo on MultiTkIp#bg_eval_string
-
-Fri Sep 16 12:02:12 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/syck/rubyext.c (syck_resolver_transfer): remove C++ style
-	  comment (//).  [ruby-core:05793]
-
-Fri Sep 16 00:14:14 2005  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* test/logger/test_logger.rb: unintentionally overwritten changes by
-	  Usa.  reverted.
-
-Fri Sep 16 00:06:18 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/cgi.rb (WEBrick::CGI::Socket#initialize): should set
-	  $stdout.binmode.
-
-Thu Sep 15 23:25:21 2005  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* lib/{soap,wsdl,xsd}, test/{soap,wsdl,xsd}: imported soap4r/1.5.5.
-
-	  #nnn is a ticket number at http://dev.ctor.org/soap4r
-
-	  * SOAP
-
-	    * allow to configure an envelope namespace of SOAP request. (#124)
-	   	TemporaryNamespace = 'http://www.w3.org/2003/05/soap-envelope'
-	  	@client.options["soap.envelope.requestnamespace"] =
-		  TemporaryNamespace
-	 	@client.options["soap.envelope.responsenamespace"] =
-		  TemporaryNamespace
-		@client.do_proc(...)
-
-	    * let SOAP request XML indent space configuable.  see
-	      "soap.envelope.no_indent" option. (#130)
-
-	    * let external CES configuable.
-	      ex. client["soap.mapping.external_ces"] = 'SJIS'.  $KCODE is used
-	      by default. (#133)
-		external CES ::= CES used in Ruby object of client and server
-		internal CES ::= CES used in SOAP/OM
-
-	    * add iso-8859-1 external CES support. (#106)
 
-	    * fixed illegal 'qualified' handling of elements.  it caused
-	      ASP.NET inteoperability problem. (#144)
+	  Adding OCSP::SingleResponse at the same time allows exposing
+	  OCSP_check_validity(). With this, the code above can be rewritten as:
 
-	    * added 'soap.envelope.use_numeric_character_reference' (boolean)
-	      option to let query XML use numeric character reference in XML,
-	      not plain UTF-8 character.  !GoogleSearch server seems to not
-	      allow plain UTF-8 character since 2005-08-15 update. (#147)
+	    basic = res.basic
+	    single = basic.find_response(certid_target)
+	    result = single.check_validity
 
-	    * SOAP::Header::SimpleHeader (de)serialization throws an exception
-	      on !SimpleHeader.on_(in|out)bound when header is a String.  so we
-	      could not use a simple single element headerItem.  fixed.  thanks
-	      to emil. (#129)
+	* test/openssl/test_ocsp.rb: Test this.
 
-	    * out parameter of rpc operation did not work.  (#132)
+Sun Jun 19 18:40:19 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	    * follow HTTP redirect only if using http-access2.  (#125) (#145)
+	* ext/openssl/ossl_ocsp.c (ossl_ocspbres_add_status): Allow specifying
+	  the times (thisUpdate, nextUpdate and revocationTime) with Time
+	  objects. Currently they accepts only relative seconds from the current
+	  time. This is inconvenience, especially for revocationTime. When
+	  Integer is passed, they are still treated as relative times. Since the
+	  type check is currently done with rb_Integer(), this is a slightly
+	  incompatible change. Hope no one passes a relative time as String or
+	  Time object...
+	  Also, allow passing nil as nextUpdate. It is optional.
 
-	    * add a workaround for importing an WSDL whose path begins with
-	      drive letter.  (#115)
+	* ext/openssl/ruby_missing.h: Define RB_INTEGER_TYPE_P() if not defined.
+	  openssl gem will be released before Ruby 2.4.0.
 
-	  * WSDL
+Sun Jun 19 18:39:38 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	    * SOAP Data which is defined as a simpletype was not mapped
-	      correctly to Ruby obj when using wsdl2ruby.rb generated classdef
-	      file. (#123)
+	* ext/openssl/ossl_ocsp.c: Implement OCSP::{CertificateId,Request,
+	  BasicResponse,Response}#initialize_copy.
+	  [ruby-core:75504] [Bug #12381]
 
-	    * rpc/literal support. (#118)
+	* test/openssl/test_ocsp.rb: Test them.
 
-	    * re-implemented local element qualify/unqualify control.  handles
-	      elementFormDefault and form in WSDL.  (#119)
+Sun Jun 19 18:29:50 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	    * Array of an element which has simpleType causes a crash. (#128)
+	* ext/openssl/ossl_pkey_dh.c, ext/openssl/ossl_pkey_dsa.c,
+	  ext/openssl/ossl_pkey_ec.c, ext/openssl/ossl_pkey_rsa.c: Implement
+	  initialize_copy method for OpenSSL::PKey::*.
+	  [ruby-core:75504] [Bug #12381]
 
-	    * prarmeterOrder may not contain return part so it can be shorter
-	      than parts size.  Thanks to Hugh.  (#139)
+	* test/openssl/test_pkey_dh.rb, test/openssl/test_pkey_dsa.rb,
+	  test/openssl/test_pkey_ec.rb, test/openssl/test_pkey_rsa.rb: Test they
+	  actually copy the OpenSSL objects, and modifications to cloned object
+	  don't affect the original object.
 
-	  * Samples
+Sun Jun 19 16:55:16 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	    * added !BasicAuth client sample. (#117)
+	* test/ruby/test_dir_m17n.rb: Skip tests with non-UTF-8 encodings
+	  on cygwin. Cygwin can use the Unicode PUA (private use area) to store
+	  bytes from non-UTF-8 filenames (see
+	  https://cygwin.com/cygwin-ug-net/using-specialnames.html#pathnames-specialchars),
+	  but we are not supporting this. [Bug #12443]
 
-	    * added Base64 client/server sample.
+Sun Jun 19 15:01:18 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	    * added Flickr SOAP interface client sample. (#122)
+	* localeinit.c: Fix filesystem encoding for cygwin to UTF-8 (see
+	  https://cygwin.com/cygwin-ug-net/using-specialnames.html#pathnames-unusual)
 
-	    * added !SalesForce client sample. (#135)
+Sun Jun 19 14:31:07 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	    * updated Thawte CA certificate for !GoogleAdWords sample.
+	* ext/openssl/ossl_pkey.h, ext/openssl/ossl_pkey_dh.c,
+	  ext/openssl/ossl_pkey_dsa.c, ext/openssl/ossl_pkey_rsa.c: A few days
+	  ago, OpenSSL changed {DH,DSA,RSA}_get0_*() to take const BIGNUM **.
+	  https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=fd809cfdbd6e32b6b67b68c59f6d55fbed7a9327
+	  [ruby-core:75225] [Feature #12324]
 
-	    * updated a client script with the newer version made by Johan.
-	      thanks!
+Sun Jun 19 11:19:43 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	    * shortened long file names. (#120)
+	* variable.c (rb_path_to_class): consider the string length
+	  instead of a terminator.
 
-	    * fixed typo in authheader sample. (#129)
+	* variable.c (rb_path_to_class): search the constant at once
+	  instead of checking if defined and then getting it.
 
-	    * updated deprecated method usage.  (#138)
+Sat Jun 18 14:01:40 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Sep 15 23:02:57 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
+	* test/rubygems/test_gem_installer.rb: Fixed broken test with extension
+	  build. https://github.com/rubygems/rubygems/pull/1645
 
-	* win32/win32.h (rb_w32_stat): added prototype.
+Sat Jun 18 13:59:54 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Sep 15 22:35:55 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* lib/rubygems.rb, lib/rubygems/*, test/rubygems/*: Update rubygems
+	  HEAD(2c6d256). It contains to update vendored Molinillo to 0.5.0.
+	  https://github.com/rubygems/rubygems/pull/1638
 
-	* test/ruby/test_signal.rb (test_exit_action): skip the test using
-	  fork on fork-less platforms.
+Sat Jun 18 10:13:37 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Sep 15 11:39:18 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* common.mk (build-ext), ext/extmk.rb: use variable EXTENCS
+	  different than ENCOBJS, to get rid of circular dependency.
+	  build libencs when linking encodings statically.
+	  [ruby-core:75618] [Bug #12401]
 
-	* ext/tk/lib/tk/dialog.rb: If a dialog does not show up yet,
-	  TkDialogObj#name raises an exception. [ruby-talk:156109]
+Sat Jun 18 08:52:46 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Sep 15 01:39:19 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+	* ext/stringio/stringio.c (strio_getline): fix pointer index
+	  overflow.  reported by Guido Vranken <guido AT guidovranken.nl>.
 
-	* lib/rinda/tuplespace.rb (Rinda::TemplateEntry::initialize): pull
-	  up method. Tabs converted to spaces.
+Thu Jun 16 16:35:35 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Sep 15 00:18:24 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* class.c (Init_class_hierarchy): prevent rb_cObject which is the
+	  class tree root, from GC.  [ruby-dev:49666] [Bug #12492]
 
-	* lib/net/telnet.rb (Net::Telnet::waitfor): replace sysread with
-	  readpartial.  [ruby-talk:127641]
+Thu Jun 16 12:17:52 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Sep 14 22:40:26 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* string.c (tr_trans): adjust buffer size by processed and rest
+	  lengths, instead of doubling repeatedly.
 
-	* dir.c (ruby_glob): glob function not using ruby exception system.
+Thu Jun 16 11:15:25 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Sep 14 01:26:03 2005  Minero Aoki  <aamine@loveruby.net>
+	* string.c (tr_trans): consider terminator length and fix heap
+	  overflow.  reported by Guido Vranken <guido AT guidovranken.nl>.
 
-	* lib/net/https.rb: backported from trunk, rev 1.3.
-	  [ruby-dev:25673] (again), [ruby-dev:26617] (again),
-	  [ruby-dev:27062]
+Thu Jun 16 00:02:32 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* ext/openssl/lib/net/https.rb: removed.
-
-	* ext/openssl/lib/net/protocols.rb: removed.
-
-	* lib/net/http.rb: #use_ssl?, #use_ssl are moved from net/https.
-
-Tue Sep 13 22:09:40 2005  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* lib/logger.rb (Logger): added formatter accessor to logger for
-	  dictating the way in which the logger should format the messages it
-	  displays.  Thanks to Nicholas Seckar (cf. [ruby-talk:153391]) and
-	  Daniel Berger.
-
-	* lib/logger.rb (Logger): added VERSION constant.
-
-	* lib/logger.rb: removed document for LogDevice. It is an
-	  implementation detail and is not a public interface.
-
-	* test/logger/test_logger.rb: added tests.
-
-Tue Sep 13 21:47:17 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (BEGIN_CALLARGS): pop halfly pushed status.
-	  fixed: [ruby-dev:26881]
-
-Tue Sep 13 16:26:45 2005  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/net/http.rb: backported from trunk, rev 1.128.
-	  [ruby-dev:25673] [ruby-dev:26617]
-
-	* lib/net/protocol.rb: backported from trunk, rev 1.78.
-
-	* lib/net/protocol.rb: new method #old_open to support net/smtp
-	  and net/pop.
-
-	* lib/net/smtp.rb: use #old_open.
-
-	* lib/net/pop.rb: ditto.
-
-Tue Sep 13 12:33:05 2005  why the lucky stiff  <why@ruby-lang.org>
-
-	* lib/yaml.rb: reworking YAML::Stream to use the new
-	  emitter.
-
-	* lib/yaml/stream.rb: ditto.
-
-	* lib/yaml/rubytypes.rb: added Object#yaml_new.
-
-	* lib/yaml/tag.rb: the tag_subclasses? method now
-	  shows up in the class.  allow taguri to be set using an accessor.
-	  continue support of Object#to_yaml_type.
-
-	* ext/syck/rubyext.c: new emitter code.  yaml_new and yaml_initialize
-	  get called, should they be present.  consolidated all the diaspora of internal
-	  node types into the family below YAML::Syck::Node -- Map,
-	  Seq, Scalar -- all of whom are SyckNode structs pointing to
-	  Ruby data.  moved Object#yaml_new into the node_import and made it the
-	  default behavior.  the target_class is always called wih yaml_new, prepended
-	  a parameter, which is the klass.  loaded nodes through GenericResolver show their style.
-	  new Resolver#tagurize converts type ids to taguris.
-
-	* ext/syck/implicit.re: were 'y' and 'n' seriously omitted??
-
-	* ext/syck/emitter.c: renovated emitter, walks the tree in advance.
-	  consolidated redundant block_styles struct into
-	  the scalar_style struct.  (this means loaded nodes can now
-	  be sent back to emitter and preserve at least its very basic
-	  formatting.)
-
-	* ext/syck/gram.c: headless documents of any kind allowed.
-
-	* ext/syck/node.c: new syck_replace_str methods and syck_empty_*
-	  methods for rewriting node contents, while keeping the ID
-	  and other setup info.  added syck_seq_assign.
-
-	* ext/syck/syck.h: reflect block_styles and new node functions.
-
-Mon Sep 12 20:53:06 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* test/openssl/test_pkcs7.rb (test_enveloped): skip this test
-	  to avoid a bug of PKCS7_enctypt() (only if ext/openssl is
-	  compiled with OpenSSL-0.9.7d or earlier versions).
-	  http://www.mail-archive.com/openssl-dev@openssl.org/msg17376.html
-
-Mon Sep 12 14:03:33 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* test/dbm/test_dbm.rb: remove locking test, which may not be
-	  supported on some platforms.  [ruby-dev:27030]
-
-Mon Sep 12 10:45:58 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/dl/dl.c (rb_io_to_ptr): merged a patch for DragonFly BSD
-	  from Takahiro Kambe <taca at back-street.net>.  [ruby-dev:27023]
-
-Sun Sep 11 22:05:51 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* bin/erb (ERB::Main#run): set ERB#filename so that it is used
-	  when reporting syntax/runtime errors. Tabs converted to spaces.
-
-Sat Sep 10 10:17:03 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_engine.c (ossl_engine_s_by_id):
-	  OpenSSL::Engine.by_id calls given block before calling
-	  ENGINE_init (block parameter is the return value of this method
-	  itself).  this functionality is useful to load dynamic shared
-	  engines. the following code is a sample of loading a key using
-	  OpenSC PKCS #11 module.
-
-		require "openssl"
-		pkcs11 = OpenSSL::Engine.by_id("dynamic"){|e|
-		  e.ctrl_cmd("SO_PATH", "/usr/lib/opensc/engine_pkcs11.so")
-		  e.ctrl_cmd("LIST_ADD", "1")
-		  e.ctrl_cmd("LOAD")
-		}
-		pkcs11.ctrl_cmd("PIN", "secret")
-		key = pkcs11.load_private_key
-
-	* ext/openssl/ossl_engine.c (ossl_engine_ctrl_cmd): new method
-	  OpenSSL::Engine#ctrl_cmd. it wraps ENGINE_ctrl_cmd_string.
-
-	* ext/openssl/ossl_engine.c (ossl_engine_get_cmds): new method
-	  OpenSSL::Engine#cmds. it returms engine command definitions.
-
-Sat Sep 10 10:09:47 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_asn1.c (asn1str_to_str): new function.
-
-	* ext/openssl/ossl_pkcs7.c: new class OpenSSL::PKCS7::RecipientInfo.
-	  this class wraps PKCS7_RECIP_INFO struct.
-
-	* ext/openssl/ossl_pkcs7.c: OpenSSL::PKCS7::Signer is renamed to
-	  OpenSSL::PKCS7::SignerInfo. ("Signer" remains as an alias of
-	  SignerInfo.)
-
-	* test/openssl/test_pkcs7.rb: new file.
-
-Sat Sep 10 10:05:51 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_ns_spki.c (ossl_spki_initialize): assume that
-	  the argument is a DER string if Base64 decoding failed.
-
-	* ext/openssl/ossl_ns_pki.c (ossl_spki_to_der): new method.
-
-	* test/openssl/test_ns_spki.rb: add new file.
-
-Sat Sep 10 09:56:24 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/lib/digest.rb: added SHA224, SHA256, SHA384 and SHA512.
-	  these features are enabled if this library is compiled with
-	  OpenSSL 0.9.8 or later.
-
-	* test/openssl/test_digest.rb: add test for new digests.
-
-Sat Sep 10 09:51:30 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl.c (ossl_raise): should use ERR_peek_last_error
-	  to get last error on the current thread. And should report
-	  errors on the stack while OpenSSL.debug is true.
-
-	* ext/openssl/ossl.c (ossl_get_errors): new method for debugging
-	  this library.
-
-	* ext/openssl/ossl_ssl.c (ossl_sslctx_set_ciphers): fix error message.
-
-	* ext/openssl/ossl_x509req.c (ossl_x509req_set_attributes): get rid
-	  of unused variable.
-
-	* ext/openssl/ossl_x509store.c (ossl_x509store_initialize): should
-	  set @time to avoid warning.
-
-	* ext/openssl/ossl_x509store.c (ossl_x509store_set_default_paths,
-	  X509_STORE_add_cert, X509_STORE_add_crl): should raise error if
-	  wrapped functions failed.
-
-	* test/openssl/test_x509store.rb: add test for errors.
-
-Fri Sep  9 22:13:19 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_call0): prohibit calling tainted method (>2) when
-	  $SAFE == 0.
-
-Fri Sep  9 16:45:25 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_str_times): make empty strings to keep taintness,
-	  and a little improvement.  [ruby-dev:26900]
-
-	* ext/iconv/iconv.c (iconv_try), ext/iconv/extconf.rb: get rid of meta
-	  characters in command line option.  fixed: [ruby-talk:155369]
-
-Thu Sep  8 14:58:11 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* merged a patch from Takahiro Kambe <taca at back-street.net> to
-	  support DragonFly BSD.  [ruby-dev:26984]
-
-Wed Sep  7 12:55:08 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/open-uri.rb: abolish mod === tempfile to avoid a problem
-	  [ruby-dev:26967].
-
-Wed Sep  7 10:45:15 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_thread_switch): convert all exceptions to
-	  SystemExit.  fixed: [ruby-core:05724]
-
-	* eval.c (rb_thread_terminated): show backtrace before propagate
-	  exceptions to main thread.
-
-Wed Sep  7 08:35:04 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* Makefile.in, configure.in (MINIOBJS): miniruby on HP-UX can not load
-	  extension libraries.
-
-	* bignum.c (bignew_1, bigadd): K&R style argument actually can't be
-	  defined as char.
-
-	* missing/vsnprintf.c: ANSI compiler supports const keyword.
-
-	* ext/digest/sha2/extconf.rb: reject platforms which has inttypes.h
-	  but no 64bit integer.
-
-	* lib/mkmf.rb (what_type?): guesstimate type.
-
-	* ext/etc/etc.c (setup_passwd), ext/etc/extconf.rb: pw_age might be
-	  char*.  fixed: [ruby-core:05470]
-
-Wed Sep  7 08:32:47 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* object.c (rb_mod_cvar_get, rb_mod_cvar_set): document fix from
-	  sheepman <sheepman@sheepman.sakura.ne.jp>; a bug in visibility
-	  description.  [ruby-dev:26965]
-
-	* sprintf.c (rb_f_sprintf): warn "too many argument" on verbose
-	  mode (-v/-w); backported from 1.9.  [ruby-dev:26963]
-
-Mon Sep  5 17:03:07 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/ostruct.rb: a patch from Florian Gross <florgro at gmail.com>
-	  merged to allow recursive inspect (and to_s) for OpenStruct.
-	  [ruby-core:05532]
-
-Mon Sep  5 07:01:12 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/openssl/lib/openssl/buffering.rb (Buffering#do_write):
-	  should clear data from the buffer which already been output.
-
-Fri Sep  2 23:51:54 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib: do not use __send__ to access private methods.  [ruby-dev:26935]
-
-Fri Sep  2 03:29:00 2005  Keiju Ishitsuka  <keiju@ruby-lang.org>
-
-	* lib/irb/init.rb: make IRB -I option that is same befavior for ruby.
-	  [ruby-dev:26872], [ruby-dev: 26920]
-
-	* lib/irb/locale.rb: support to print help message when OS locale is
-	  ja_JP.utf-8. [ruby-dev:26872]
-
-Thu Sep  1 17:11:25 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_call0): wrong condition for $SAFE restoration.
-
-Thu Sep  1 14:12:45 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/multi-tk.rb: On Tcl8.5, MultiTkIp#invoke_hidden doesn't
-	  work (gives wrong order of arguments).
-
-	* ext/tk/lib/multi-tk.rb: add MultiTkIp#invoke_hidden_on_namespace
-	  to support '-namespace' option of 'interp invokehidden' command
-	  on Tcl8.5.
-
-Wed Aug 31 14:43:15 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/Makefile.sub (OPTFLAGS): default global optimization to
-	  disabled for all VC++ versions.  fixed: [ruby-dev:26897]
-
-Wed Aug 31 11:35:43 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/gdbm/test_gdbm.rb (teardown): should remove GDBM temporary
-	  file.
-
-Wed Aug 31 10:30:56 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* process.c (proc_detach, proc_setmaxgroups): missing argument type
-	  declaration. (I recommend ANSI-style function)
-
-Tue Aug 30 23:20:19 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_rescue2): initialization miss.  fixed: [ruby-dev:26917]
-
-	* lib/mkmf.rb (xsystem, xpopen): no longer expand by Config.
-
-	* lib/mkmf.rb (link_command, cc_command, cpp_command): expand
-	  variables at once, and quote hdrdir.  fixed: [ruby-core:05680]
-
-	* lib/mkmf.rb (libpathflag): quote paths.
-
-Tue Aug 30 19:34:27 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/digest/md5/md5ossl.h, ext/digest/rmd160/rmd160ossl.h,
-	  ext/digest/sha1/sha1ossl.h: include <stddef.h> to avoid
-	  error in compilation with OpenSSL-0.9.8. [ruby-list:41068]
-
-Mon Aug 29 19:54:21 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* lib/rdoc/usage.rb: improper exceptions. [ruby-dev:26870]
-
-	* lib/rdoc/usage.rb: support the case when non-ruby code exists before
-	  shebang. (this is needed when ri.bat is executed on windows)
-
-Mon Aug 29 17:48:17 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (method_arity): should return proper arity value.
-	  [ruby-dev:26390]
-
-Mon Aug 29 01:19:57 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/time.rb (Time.parse): extract fractional seconds using
-	  Date._parse.  [ruby-talk:153859]
-
-Sat Aug 27 20:20:01 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/curses/curses.c ({curses,window}_clrtoeol): added. suggested
-	  by Reyn Vlietstra.
-
-	* ext/curses/curses.c: chtype in curses is not `char', rahter `long'.
-	  [ruby-Bugs:2298]
-
-	* ext/curses/view.rb: String =~ String is deprecated.
-
-Wed Aug 24 10:53:28 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/logger/test_logger.rb (test_shifting_size): should close log
-	  device before unlink, since some platform cannot unlink opened
-	  file.
-
-Sun Aug 21 00:13:27 2005  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* lib/wsdl/xmlSchema/importer.rb (WSDL::XMLSchema::Importer#fetch): add
-	  a workaround for importing an WSDL whose path begins with drive
-	  letter.  [ruby-dev:26242]
-
-Sat Aug 20 22:37:13 2005  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* lib/logger.rb (write, shift_log?, shift_log): file shifting race
-	  condition bug fixed.  [ruby-dev:26764]
-
-	* test/logger/test_logger.rb: tests.
-
-Fri Aug 19 18:13:39 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/time.rb (Time.apply_offset): fix a problem with last day of
-	  month.  reported by Lucas Nussbaum.  [ruby-talk:152866]
-
-Thu Aug 18 12:46:28 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* bcc32/Makefile.sub (COMMON_HEADERS): reverted 1.42.2.24.
-	  I misunderstood, bccwin32 on ruby_1_8 uses winsock2 originally.
-	  [ruby-dev:26806]
-
-	* win32/win32.h: include winsock2.h instead of winsock.h. (bcc32)
-
-Wed Aug 17 23:58:05 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* object.c (rb_to_integer): argument constified.
-
-	* eval.c (terminate_process): take String message.
-
-	* eval.c (rb_thread_switch): propagate the exception caused thread
-	  termination directly.  fixed: [ruby-core:05552]
-
-Wed Aug 17 00:05:46 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_add_method): preserve safe level in the environment
-	  where a method is defined .
-
-	* eval.c (rb_call0): restore preserved safe level in the method
-	  execution.
-
-Mon Aug 15 00:38:51 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_rescue2): reduce PUSH_TAG() as well as NODE_RESCUE.
-	  [ruby-dev:26800]
-
-	* range.c (range_check, range_init): reduce useless exceptions.
-
-Sat Aug 13 18:51:26 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_block_pass): distinguish current block from others.
-	  fixed: [ruby-dev:26274]
-
-	* ext/stringio/stringio.c (strio_set_string): disallow nil.
-	  http://www.rubyist.net/~nobu/t/20050811.html#c05
-
-Thu Aug 11 23:29:03 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/stringio/stringio.c: keep holding string after closed.
-
-Thu Aug 11 13:01:48 2005  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss: fixed sort bug. [ruby-list:41018]
-
-	* lib/rss/1.0.rb (RSS::RDF::Channel#setup_maker_attributes):
-	  removed self.
-
-	* lib/rss/maker/base.rb (RSS::Maker::ItemsBase#<=>): use #date
-	  instead of @date.
-	  (RSS::Maker::Base::self.def_array_element): added #size.
-
-	* lib/rss/maker/1.0.rb
-	  (RSS::Maker::RSS10::Channel#to_rss,
-	   RSS::Maker::RSS10::Items::Item#to_rss): cleared dc_dates set
-	  upped by using #date.
-
-	* lib/rss/maker/dublincore.rb
-	  (RSS::Maker::ChannelBase, RSS::Maker::ItemsBase::ItemBase):
-	  fixed opposite alias.
-
-	* test/rss/test_setup_maker_1.0.rb
-	  (RSS::TestSetupMaker10::test_setup_maker_items_sort): added some
-	  tests for RSS::Maker::ItemsBase#do_sort.
-
-Wed Aug 10 10:29:40 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: fix bug on handling __ruby2val_optkeys().
-
-	* ext/tk/lib/tk/itemconfig.rb: fix bug on handling
-	  __item_ruby2val_optkeys().
-
-	* ext/tk/lib/tk/canvas.rb: didn't check __item_ruby2val_optkeys().
-
-	* ext/tk/lib/tkextlib/blt/component.rb: ditto.
-
-Tue Aug  9 15:12:04 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c: remove dangerous 'rb_jump_tag's.
-
-	* ext/tk/lib/tk.rb: add __val2ruby_optkeys and __ruby2val_optkeys to
-	  help to convert option values between ruby and tcl.
-
-	* ext/tk/lib/tk/itemconfig.rb: add __item_val2ruby_optkeys and
-	  __item_ruby2val_optkeys to help to convert option values between
-	    ruby and tcl.
-
-	* ext/tk/lib/tk/radiobutton.rb: use __ruby2val_optkeys for 'variable'
-	  option (for the reason of backward compatibility).
-
-	* ext/tk/lib/tk/composite.rb: clarify the arguments of super().
-
-	* ext/tk/lib/tk/spinbox.rb: ditto.
-
-	* ext/tk/lib/tk/text.rb: ditto.
-
-	* ext/tk/lib/tk/validation.rb: ditto.
-
-	* ext/tk/lib/tkextlib/*: support to treat tkvariable-type
-	  configure options.
-
-Tue Aug  9 20:30:19 2005  Tadashi Saito  <shiba@mail2.accsnet.ne.jp>
-
-	* bignum.c (rb_big_coerce): allow bignum x bignum coercing.
-	  [ruby-dev:26778]
-
-Mon Aug  8 20:43:02 2005  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* test/ruby/test_method.rb: added.  [ruby-dev:26761]
-
-Sun Aug  7 23:50:14 2005  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* test/ruby/test_super.rb: added from HEAD. [ruby-dev:26743]
-
-Sun Aug  7 01:31:15 2005  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/win32ole.c (WIN32OLE_EVENT#on_event): should set
-	  only one event handler.
-
-	* ext/win32ole/tests/testOLEEVENT.rb: ditto.
-
-	* ext/win32ole/tests/testOLEPARAM.rb: remove re-defined
-	  test_ole_type_detail method.
-
-Sat Aug  6 12:35:24 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/{tk.rb,tk/itemconfig.rb}: configure creates
-	  TkVariable if key name is 'variable' or 'textvariable'
-	  by default. [ruby-dev:26749]
-
-	* ext/tk/lib/tk/{label,radiobutton}.rb: removed its own
-	  {variable,textvariable} function.
-
-	* ext/tk/lib/tk/variable.rb: retains backward conpatibility.
-
-Fri Aug  5 12:50:32 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/tcltklib/tcltklib.c: fixed memory leak when tk_funcall raised
-	  exception. (copies argv into heap in tk_funcall instead of
-	  caller)
-
-Fri Aug  5 12:42:57 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* lib/mkmf.rb (create_makefile): need to convert path separetor
-	  before invoking install command.
-
-Fri Aug  5 00:27:04 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/tcltklib/tcltklib.c: refactoring - extract ruby string <->
-	  tcl object conversion as get_str_from_obj and get_obj_from_str.
-
-Fri Aug  5 00:19:33 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* extmk.rb (extmake): needs to be wrapped in an Array.
-
-Thu Aug  4 18:38:36 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c: cannot compile for Tcl7.6/Tk4.2.
-
-	* ext/tcltklib/tcltklib.c: add nativethread consistency check.
-
-	* ext/tcltklib/stubs.c: ditto.
-
-	* ext/tk/lib/tk.rb: forgot to define TclTkIp.encoding and encoding=
-	  when Tcl is 7.6 or 8.0.
-
-	* ext/tk/lib/tk/wm.rb: support to make some methods as options of
-	  root or toplevel widget. [ruby-talk:150336]
-
-	* ext/tk/lib/tk/root.rb: ditto.
-
-	* ext/tk/lib/tk/toplevel.rb: ditto.
-
-	* ext/tk/lib/tkextlib/SUPPRT_STATUS: update RELEASE_DATE
-
-Thu Aug  4 08:03:39 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb (extmake): should not modify $mflags for each
-	  extentions.
-
-Thu Aug  4 00:25:48 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk, Makefile.in, {bcc32,win32,wince}/Makefile.sub: integrated
-	  macro definitions.
-
-	* bcc32/Makefile.sub: LIBRUBY_SO should use DLDOBJS, not EXTOBJS.
-
-	* {win32,wince}/Makefile.sub: separate config.h for compiler versions.
-
-Wed Aug  3 21:59:16 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/variable.rb: TkVariable#trace didn't work on
-	  TkVariable retrived from TkVariable.new_hash.ref. [ruby-dev:26721]
-
-Wed Aug  3 08:22:13 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/socket/socket.c (ruby_connect): revert [ruby-talk:111654]
-	  changes at 2004-09-07.  [ruby-dev:26656]
-
-Tue Aug  2 10:20:54 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/tcltklib/tcltklib.c: use Tcl_[GS]etVar2Ex instead of
-	  Tcl_Obj[GS]etVar2. (avoid Tcl_NewStringObj on supported platforms)
-
-	* ext/tcltklib/tcltklib.c: use ip_{get,set,unset}_variable2_core from
-	  ip_{get,set,unset}_variable.
-
-	* ext/tcltklib/tcltklib.c: replaced Tcl_Panic with rb_bug.
-
-Tue Aug  2 01:41:28 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/ping.rb (Ping.pingecho): should rescue StandardError.
-	  [ruby-dev:26677]
-
-Mon Aug  1 19:09:41 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/tcltklib/tcltklib.c: refactoring - replaced rb_ivar_defined &
-	  rb_ivar_get with single rb_attr_get call.
-
-Mon Aug  1 18:45:07 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/tcltklib/tcltklib.c (Tcl_GetStringResult): refactoring - define
-	  alternative macro on Tcl7.x or earlier.
-
-Mon Aug  1 13:57:35 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/tcltklib/tcltklib.c (deleted_ip): refactoring - interpreter
-	  deletion check. [ruby-dev:26664]
-
-Mon Aug  1 01:17:40 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/drb.rb (check_insecure_method): use private_methods and
-	  protected_methods instead of respond_to? to check method visibility.
-	  [ruby-dev:26616]
-
-	* test/drb/drbtest.rb: ditto.
-
-	* test/drb/ut_drb.rb: ditto.
-
-Mon Aug  1 00:07:32 2005  Keiju Ishitsuka  <keiju@ruby-lang.org>
-
-	* lib/irb/context.rb: fix `irb --readline` option. [ruby-list:40955]
-
-Fri Jul 29 09:59:38 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_yield_0): push yielded node instead of yielding.
-	  fixed: [yarv-dev:549]
-
-Thu Jul 28 18:09:55 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/stubs.c: When --enable-tcltk-stubs, the initialize
-	  routine creates a Tcl/Tk interpreter and deletes it. However,
-	  init cost of Tk's MainWindow is not so small. And that makes it
-	  impossible to use libraries written with Tcl functions only on
-	  an environment without a graphical display. This changes support
-	  delaying initalization of Tk_Stubs until the script needs Tk.
-
-	* ext/tcltklib/stubs.h: New file. Define prototypes and return
-	  codes of functions on stubs.c.
-
-	* ext/tcltklib/tcltklib.c: Support delaying initalization of
-	  Tk_Stubs until the script needs Tk.
-
-	* ext/tcltklib/tcltklib.c: Show friendly error messages for errors
-	  on initialization.
-
-	* ext/tcltklib/tcltklib.c: Avoid SEGV on ip_finalize() when ruby is
-	  exiting and $DEBUG is true. (Not fix. If you know the reason of
-	  why, please fix it.)
-
-	* ext/tk/tkutil.c (ary2list, ary2list2): bug fix on handling of
-	  encoding.
-
-	* ext/tk/lib/multi-tk.rb: MultiTkIp#eval_string and bg_eval_string
-	  don't work propery.
-
-	* ext/tk/lib/tk.rb: Forget extending Tk::Encoding module to Tk.
-	* ext/tk/lib/tk/variable.rb: TkVarAccess fails to initialize the
-	  object for an element of a Tcl's array variable.
-
-Wed Jul 27 23:23:54 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* gc.c (obj_free): make message format consistent with one from
-	  gc_mark().  [ruby-talk:149668]
-
-Wed Jul 27 22:11:37 2005  Kouhei Sutou  <kou@cozmixng.org>
-
-	* sample/rss/tdiary_plugin: removed. because the plugin
-	  is imported in the tDiary plugin packages.
-
-Wed Jul 27 10:59:02 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* dir.c (dir_each): rewinddir(3) before iteration.
-	  [ruby-talk:149628]
-
-Tue Jul 26 12:57:49 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/openssl_missin.c: include <openssl/engine.h> before
-	  <openssl/x509_vfy.h> to avoid compilation error of mswin32.
-	  suggested by NAKAMURA Usaku.
-
-Mon Jul 25 21:30:46 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* {bcc32,win32,wince}/Makefile.sub: moved CPPFLAGS only for ruby
-	  source to XCFLAGS.
-
-Mon Jul 25 13:45:18 2005  NAJIMA Hiroki  <najima@mickey.ai.kyutech.ac.jp>
-
-	* io.c: check HAVE_SYS_IOCTL_H before including the header.
-	  [ruby-dev:26610]
-
-Mon Jul 25 14:10:02 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/multi-tk.rb: fix en-bugged part in the last commit.
-
-Sat Jul 23 16:49:04 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_engine.c (ossl_engine_s_load): should check
-	  OPENSSL_NO_STATIC_ENGINE.
-
-Fri Jul 22 21:06:08 2005  Tadashi Saito  <shiba@mail2.accsnet.ne.jp>
-
-	* bignum.c (rb_big_eq): reduce isnan().  [ruby-dev:26600]
-
-	* numeric.c (flo_eq, flo_gt, flo_ge, flo_lt, flo_le): ditto.
-
-Fri Jul 22 15:02:39 2005  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb: moved copyright description to lib/rss.rb.
-
-	* lib/rss.rb: added for convenience.
-
-	* sample/rss/re_read.rb: added #to_s sample.
-
-	* sample/rss/blend.rb: use 'require "rss"' instead of
-	  'require "rss/*"'.
-	* sample/rss/list_description.rb: ditto.
-	* sample/rss/rss_recent.rb: ditto.
-	* sample/rss/tdiary-plugin/rss-recent.rb: ditto.
-
-	* sample/rss/tdiary-plugin/rss-recent.rb: 0.0.6 -> 0.0.7.
-
-Fri Jul 22 14:37:43 2005  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/parser.rb (RSS::Parser#initialize): accept HTTP/FTP
-	  URI and local file path too.
-
-	* test/rss/test_parser.rb (RSS::TestParser#test_parse): test
-	  for the above.
-
-Fri Jul 22 07:01:42 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/tkutil.c (tk_conv_args): forget to revert thread_critical
-	  and gc_disable when raise ArgumentError.
-
-	* ext/tk/lib/remote-tk.rb: RemoteTkIp doesn't need to include TkUtil.
-
-	* ext/tcltklib/tcltklib.c: add TclTkIp#has_mainwindow? method.
-
-	* ext/tk/lib/tk.rb: add Tk.has_mainwindow? method.
-
-	* ext/tk/lib/multi-tk.rb: add MultiTkIp#has_mainwindow? method.
-
-	* ext/tk/lib/remote-tk.rb: add RemoteTkIp#has_mainwindow? method.
-
-	* ext/tk/lib/multi-tk.rb: slave IP fail to exit itself when $SAFE==4.
-
-	* ext/tk/lib/multi-tk.rb: remove constants from MultiTkIp module to
-	  avoid access from external.
-
-	* ext/tk/lib/multi-tk.rb: check_root flag is ignored on slave IPs'
-	  mainloop.
-
-	* ext/tk/lib/multi-tk.rb: hang-up Tk.mainloop called on a slave IP
-	  with $SAFE==4.
-
-	* ext/tk/lib/multi-tk.rb: MultiTkIp#bg_eval_proc doesn't work
-	  properly.
-
-	* ext/tk/lib/multi-tk.rb: add MultiTkIp#set_cb_error(proc) and
-	  cb_error(exc) to log errors at callbacks on safe slave IPs.
-
-	* ext/tk/lib/multi-tk.rb: fail to get an available slave IP object
-	  when call Tk.mainloop in the block which is given to new_* method,
-	    because cannot finish initialize while the root widget is alive.
-
-	* ext/tk/lib/multi-tk.rb: fail to control a slave IP when Tk.mainloop
-	  runs on the IP.
-
-Wed Jul 20 19:20:37 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* io.c (S_ISREG): need to define S_ISREG before it is used first.
-
-Wed Jul 20 18:40:50 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* io.c (wsplit_p): patch for the environment where
-	  fcntl(F_GETFL, O_NONBLOCK) is not supported. in that case,
-	  set FMODE_WSPLIT without fcntl check. [ruby-dev:26566]
-
-Wed Jul 20 18:07:11 2005  Tanaka Akira  <akr@m17n.org>
-
-	* io.c (rb_io_ctl): update FMODE_WSPLIT_INITIALIZED and FMODE_WSPLIT
-	  by F_SETFL.
-
-Wed Jul 20 10:04:51 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* variable.c (rb_class_path): need to adjust snprintf() len for
-	  teminating NUL.  [ruby-dev:26581]
-
-Wed Jul 20 04:01:55 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/socket/socket.c: sorry, BeOS also uses HAVE_CLOSESOCKET,
-	  so reverted.
-
-	* ext/socket/extconf.rb: should not define HAVE_CLOSESOCKET
-	  on windows.
-
-Wed Jul 20 03:16:43 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/socket/socket.c: should not undef close() on win32.
-	  it's defined to rb_w32_close(), otherwise handle leaks.
-	  [ruby-Bugs-2131]
-
-Wed Jul 20 00:48:16 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* error.c (syserr_initialize): don't use str before StringValue()
-	  check.  [ruby-dev:26579]
-
-Tue Jul 19 22:47:29 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* error.c (syserr_initialize): add 1 byte for snprintf() size for
-	  NUL at the end.  [ruby-dev:26574]
-
-Tue Jul 19 16:39:46 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (rb_io_inspect): replace sprintf() with "%s" format all
-	  over the place by snprintf() to avoid integer overflow.
-
-Tue Jul 19 14:08:22 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/tcltklib/tcltklib.c: rbtk_eventloop_depth is used as int.
-
-	* ext/tcltklib/tcltklib.c: rbtk_pending_exception is tested with
-	  NIL_P, so should assign Qnil instead of 0 (Qfalse).
-
-	* ext/tcltklib/tcltklib.c (ip_invoke_real): fixed memory leak when
-	  ip is deleted.
-
-Tue Jul 19 13:19:46 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/variable.rb: For symmetry, add TkVariable#string. It
-	  returns a string even if the default value type of the TkVariable
-	  object is not "string".
-
-Mon Jul 18 21:40:20 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* eval.c (rb_call0): make the pointer to NODE volatile
-	  instead of NODE itself.
-
-Mon Jul 18 14:32:21 2005  Tanaka Akira  <akr@m17n.org>
-
-	* eval.c (rb_call0): make body volatile to avoid optimization problem.
-	  [ruby-dev:26195]
-
-Mon Jul 18 12:23:27 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/io/wait/wait.c: wrong backport from trunk.  fixed: [ruby-dev:26562]
-
-Mon Jul 18 09:36:25 2005  Tanaka Akira  <akr@m17n.org>
-
-	* rubyio.h (FMODE_WSPLIT, FMODE_WSPLIT_INITIALIZED): new constant.
-
-	* io.c (wsplit_p): new function.
-	  (io_fwrite): split writing data by PIPE_BUF if wsplit_p is true in
-	  multi-threaded mode.
-	  [ruby-dev:26540]
-
-Sun Jul 17 13:46:54 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/io/wait/extconf.rb, ext/io/wait/wait.c: Win32 platforms support.
-
-Fri Jul 15 23:59:03 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/rdoc/parsers/parse_c.rb (handle_class_module): handle a
-	  module enclosed in a built-in module.  fixed: [ruby-talk:148239]
-
-	* lib/rdoc/parsers/parse_c.rb (find_body): allow macros as methods.
-
-	* lib/rdoc/parsers/parse_c.rb (find_call_seq): allow :nodoc: modifier
-	  in C.  [ruby-core:04572]
-
-Fri Jul 15 18:00:01 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* bcc32/Makefile.sub (COMMON_HEADERS): ruby_1_8 is using winsock.h.
-	  failed to compile ext/socket on bcc5.6.4. [ruby-dev:26193]
-
-Fri Jul 15 07:58:56 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/server.rb (WEBrick::GenericServer#accept_client):
-	  sockets should be non-blocking mode. [ruby-dev:26405]
-
-	* lib/webrick/utils.rb (WEBrick::Utils.set_non_blocking): new method.
-
-	* lib/webrick/httprequest.rb (WEBrick::HTTPRequest#read_chunked):
-	  should call sock.read repeatedly until the preferred size data
-	  is obtained.
-
-Thu Jul 14 18:27:16 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* win32/win32.c (rb_w32_strerror): should return correct message
-	  for ENAMETOOLONG and ENOTEMPTY. (bcc32) [ruby-dev:26533]
-
-	* win32/win32.c (rb_w32_strerror): stripped CR LF on the tail.
-	  (bcc32) [ruby-dev:26533]
-
-Thu Jul 14 00:45:42 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* LEGAL (ext/nkf/nkf-utf8): updated from nkf1.7 to nkf-utf8.
-
-Wed Jul 13 19:37:47 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* win32/win32.c (rb_w32_mkdir): should set EEXIST (not EACCES)
-	  if file or directory already exists. (bcc32) [ruby-dev:26508]
-
-	* win32/win32.c (rb_w32_rmdir): should set ENOTDIR (not EINVAL)
-	  if it is not directory. (bcc32, win32)
-
-	* win32/win32.c (rb_w32_rmdir, rb_w32_unlink): restore
-	  FILE_ATTRIBUTE_READONLY flag on function failure.
-
-Wed Jul 13 12:40:00 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c: TclTkLib.do_one_event doesn't work.
-
-	* ext/tk/lib/tk.rb: Tk.thread_update is available.
-
-Tue Jul 12 23:32:11 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb: keep curdir unexpanded.
-
-Mon Jul 11 08:31:29 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* regex.c (read_special): fix parsing backslashes following \c in
-	  regexp.  fixed: [ruby-dev:26500]
-
-Mon Jul 11 02:53:00 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/cgi.rb (WEBrick::CGI::Socket#request_line):
-	  mistook in merging the patch of [ruby-dev:26235] at
-	  revision 1.4.2.6.
-
-Sun Jul 10 23:58:04 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/pathname.rb (Pathname#unlink): try Dir.unlink first to
-	  avoid unlink a directory by root.
-	  cf. [ruby-dev:26237]
-
-Sun Jul 11 05:18:17 2005  Michael Neumann  <mneumann@ruby-lang.org>
-
-	* lib/xmlrpc/server.rb (XMLRPC::Server): Switch from GServer over to
-	  WEBrick. This makes file lib/xmlrpc/httpserver.rb obsolete (at least it is
-		no further used by the XML-RPC library).
-
-Sun Jul 10 12:47:01 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/debug.rb (debug_command): added a deficient format specifier.
-	  fixed: [ruby-core:05419]
-
-Sat Jul  9 21:28:46 2005  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/win32ole.c (ole_method_dispid): convert dispid
-	  in Ruby and C by INT2NUM and NUM2INT.
-
-	* ext/win32ole/win32ole.c (ole_invoke2): ditto.
-
-	* ext/win32ole/test/testWIN32OLE.rb: ditto.
-
-	* ext/win32ole/test/testOLEMETHOD.rb: ditto.
-
-Fri Jul  8 15:45:04 2005  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb (RSS::VERSION): 0.1.4 -> 0.1.5.
-
-	* test/rss/test_version.rb (RSS::TestVersion#test_version):
-	  ditto.
-
-	* lib/rss/0.9.rb (RSS::Rss::Channel::Item::Category):
-	  domain attribute of <category> is optional. Thanks to
-	  Chris Lee <clee@kde.org>.
-
-	* test/rss/test_parser.rb (RSS::TestParser#test_category20):
-	  adjusted test case.
-
-Tue Jul  5 23:44:06 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* instruby.rb: expand source library path.
-
-Tue Jul  5 23:27:14 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* array.c (sort_2): get rid of yet another bcc's bug.
-	  fixed: [ruby-core:05152]
-
-	* eval.c (rb_thread_save_context): must not switch contexts during
-	  re-allocating stack.  fixed: [ruby-core:05219]
-
-Tue Jul  5 15:15:10 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/tkutil.c: fix typo.
-
-Tue Jul  5 14:51:35 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c: bug fix on treating Unicode strings.
-
-	* ext/tcltklib/tcltklib.c: add methods to treat encoding mode.
-
-	* ext/tcltklib/MANUAL.eng: add description of TclTkLib#encoding,
-	  encoding_system, and so on.
-
-	* ext/tcltklib/MANUAL.euc: ditto.
-
-	* ext/tk/tkutil.c: fail to create a Tcl's list string from an
-	  array including multiple kind of encoded strings.
-
-	* ext/tk/lib/tk.rb: ditto.
-
-	* ext/tk/lib/multi-tk.rb: 2nd arg of _{to|from}UTF8 is omissible.
-
-	* ext/tk/lib/remote-tk.rb: ditto.
-
-	* ext/tk/lib/tk.rb: override TclTkLib#encoding and encoding= to
-	  use TkCore::INTERP.encoding and encoding=.
-
-	* ext/tk/lib/tk.rb: when "require 'tk'" and $KCODE=='NONE', check
-	  DEFAULT_TK_ENCODING to decide Ruby/Tk's system encoding mode.
-
-	* ext/tk/lib/tk/encodedstr.rb: check both of Tk.encoding and
-	  Tk.encoding_system. Tk.encoding has higher priority.
-
-	* ext/tk/lib/tk/optiondb.rb: ditto.
-
-	* ext/tk/lib/tk/spinbox.rb: ditto.
-
-	* ext/tk/lib/tk/validation.rb: ditto.
-
-	* ext/tk/lib/tk/namespace.rb: arguemnts for TclTkIp#_merge_tklist
-	  should be UTF-8 strings.
-
-Mon Jul  4 14:35:52 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* sample/svr.rb: service can be stopped by ill-behaved client; use
-	  tsvr.rb instead.
-
-Mon Jul  4 13:25:21 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* missing/erf.c: original erf.c by prof. Okumura is confirmed to
-	  be public domain.  reverted BSD implementation.
-
-Mon Jul  4 11:15:37 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/{dbm,gdbm,sdbm}/test_{dbm,gdbm,sdbm}.rb: skip some tests
-	  which using fork on fork-less platforms.
-
-Sun Jul  3 23:26:30 2005  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* test/wsdl/document/test_rpc.rb: compare formatted time string of
-	  Time objects instead of comparing Time objects itself to avoid
-	  unintended conflict of usec part.  [ruby-dev:26220]
-
-Sat Jul  2 22:41:04 2005  Tanaka Akira  <akr@m17n.org>
-
-	* ext/socket/socket.c (unix_send_io, unix_recv_io): support x86-64 and
-	  IA64.
-
-Sat Jul  2 17:06:23 2005  Tanaka Akira  <akr@m17n.org>
-
-	* defines.h (FLUSH_REGISTER_WINDOWS): defined for IA64.
-	  (flush_register_windows): declare flush_register_windows.
-
-	* eval.c (flush_register_windows): new function.
-
-Fri Jul  1 17:48:52 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* bignum.c (get2comp): revert all prior changes, and calculate
-	  proper 2's complement for negative numbers.  backported from
-	  HEAD.
-
-Fri Jul  1 15:50:12 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* missing/erf.c: need to include some headers for some platforms.
-
-	* win32/win32.h (copysign, scalb): define for compatibility with
-	  other platforms. [ruby-dev:26430]
-
-Fri Jul  1 15:37:42 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* missing/crypt.c: modified to make it compilable on platforms
-	  other than BSD.  [ruby-dev:26430]
-
-	* missing/erf.c: ditto.  code from <exp.c> merged.
-
-Fri Jul  1 12:44:56 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/open-uri.rb (OpenURI.open_http): refine post_connection_check
-	  call.
-
-Fri Jul  1 11:34:08 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* missing/crypt.c: replaced with 4.4BSD version.
-
-	* missing/erf.c: ditto.
-
-	* missing/vsnprintf.c: removed the third provision from the old
-	  BSD license.  [ruby-core:05177]
-
-Fri Jul  1 01:45:21 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* enum.c (enum_min, enum_max): must not return Qundef.
-	  fixed: [ruby-core:05299]
-
-Fri Jul  1 00:18:40 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/delegate.rb (Delegator::respond_to): respond_to? must check
-	  destination object.  [ruby-talk:146894]
-
-Thu Jun 30 19:00:21 2005  Keiju Ishitsuka  <keiju@ruby-lang.org>
-
-	* lib/irb/ruby-lex.rb (RubyLex::identify_number): alternative implements
-	  for [ruby-dev:26410]. And support a numeric form of 0d99999.
-
-Thu Jun 30 17:28:10 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/irb/ruby-lex.rb (RubyLex::identify_number): should not treat
-	  plain zero as an octal number.  [ruby-dev:26410]
-
-Thu Jun 30 15:13:16 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_eval): pre-evaluate argument for unambiguous
-	  evaluation order.  [ruby-dev:26383]
-
-Thu Jun 30 09:53:56 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/delegate.rb (Delegator::method_missing): forward unknown
-	  method to the destination.  suggested by
-	  <christophe.poucet@gmail.com>.  [ruby-talk:146776]
-
-Tue Jun 28 21:59:29 2005  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* dir.c, eval.c, hash.c, process.c, ruby.c: avoid warning "unused
-	  variable" [ruby-dev:26387]
-
-Sat Jun 25 17:15:23 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/httputils.rb (WEBrick::HTTPUtils.parse_query): should
-	  discard if key=val pair is empty. patch from Gary Wright.
-
-Sat Jun 25 23:30:51 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* process.c (detach_process_watcher): terminate process watcher
-	  thread right after rb_waitpid() succeed.  [ruby-talk:146430]
-
-Sat Jun 25 15:49:18 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* enum.c (enum_min, enum_max): do not ignore nil as the first element.
-
-Sat Jun 25 14:40:17 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/sdbm/init.c (fsdbm_select): SDBM#select had returned the array
-	  which contained each elements twice. [ruby-dev:26358]
-
-Fri Jun 25 05:06:47 2005  Michael Neumann  <mneumann@ruby-lang.org>
-
-	* lib/xmlrpc/*, test/xmlrpc/*: backported changes from HEAD into 1.8
-
-Fri Jun 24 17:00:00 2005  Shigeo Kobayashi  <shigeo@tinyforest.jp>
-
-	* ext/bigdecimal/bigdecimal.c: patch from "NATORI Shin"
-	  (u-tokyo.ac.jp) applied to fix rounding bug.
-
-Fri Jun 24 13:06:45 2005  akira yamada  <akira@ruby-lang.org>
-
-	* lib/uri/common.rb, lib/uri/generic.rb: fixed typo in documents and
-	  replaced some existent domain name with "example.com".
-
-Fri Jun 24 12:23:19 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: fix typo on Tk.grid_propagate.
-
-	* ext/tk/lib/tk.rb: Tk.event_generate and TkWindow#event_generate
-	  accept TkEvent::Event object as context argument.
-
-	* ext/tk/lib/tk/event.rb: add TkEvent::Event#valid_fields and
-	  valid_for_generate to get field parameters of event_generate.
-
-Thu Jun 23 23:55:59 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* runruby.rb: should load built rbconfig.rb.
-
-Thu Jun 23 16:53:15 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/canvastag.rb: TkcGroup.new cannot include given items.
-	  TkcGroup#exclude calls wrong method.
-	  Add alias TkcGroup#add [ruby-talk:146049].
-
-	* ext/tk/lib/tk/canvas.rb: TkCanvas#dtag and some subcommands of
-	  TkCanvas#addtag fail to treat a TkcTag argument.
-
-	* ext/tk/lib/tk/event.rb: add TkEvent::Event#generate to help to send
-	  current event to other widgets.
-
-Mon Jun 20 18:44:04 2005  Tanaka Akira  <akr@m17n.org>
-
-	* eval.c (FUNCTION_CALL_MAY_RETURN_TWICE): DUMMY_SETJMP is replaced
-	  because setjmp is not enough to fix getcontext and SPARC register
-	  window problem.
-
-Mon Jun 20 16:48:36 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/dbm/dbm.c (fdbm_closed): new method DBM#closed?
-
-	* ext/gdbm/gdbm.c (fgdbm_closed): new method GDBM#closed?
-
-	* ext/sdbm/init.c (fsdbm_closed): new method SDBM#closed?
-
-	* test/dbm/test_dbm.rb, test/gdbm/test_gdbm.rb, test/sdbm/test_sdbm.rb
-	  (teardown): close all db objects before deleting data files.
-
-	* win32/win32.{ch} (unlink): hook runtime function to change
-	  file attribute before unlinking.
-	  fixed: [ruby-dev:26360]
-
-Mon Jun 20 02:15:35 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* gc.c (define_final): document fix: finalizers never get called
-	  before target object is destroyed.
-
-Mon Jun 20 01:26:49 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/openssl_missing.c, ext/openssl/ossl.h,
-	  ext/openssl/ossl_asn1.c, ext/openssl/ossl_bio.c,
-	  ext/openssl/ossl_pkcs12.h, ext/openssl/ossl_x509req.c: avoid
-	  compiler warnings. suggested by Michal Rokos.
-
-Sun Jun 19 14:09:07 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* gc.c (run_final): reduce unnecessary object allocation during
-	  finalization.
-
-	* gc.c (rb_gc_call_finalizer_at_exit): deferred finalizers list should
-	  be cleared before calling them.  fixed: [ruby-talk:145790]
-
-Fri Jun 17 13:01:40 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/time.rb (Time.parse): fix previous leap seconds support.
-	  (Time.rfc2822): ditto.
-	  (Time.xmlschema): ditto.
-
-Thu Jun 16 15:06:55 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/tcltklib/tcltklib.c (ip_rb_threadVwaitCommand): Tcl_Release
-	  was missing.
-
-Thu Jun 16 13:34:48 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: add Tk.getMultiple{Open|Save}File() which return
-	  an Array of selected files.
-
-Thu Jun 16 12:53:24 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/time.rb (Time.parse): "Fri Jan  1 08:59:60 +0900 1999" was
-	  parsed as "Fri Jan 01 09:00:00 JST 1999" even on an environment
-	  which supports leap seconds.
-	  (Time.rfc2822): ditto.
-	  (Time.xmlschema): ditto.
-
-Thu Jun 16 08:29:22 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/dl/sym.c (rb_dlsym_call): needs FREE_ARGS before return.
-	  fixed memory leak. [ruby-Bugs-2034]
-
-Wed Jun 15 18:26:39 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: support "tk inactive" sub-command [for Tcl/Tk8.5a3]
-
-	* ext/tk/lib/tk/namespace.rb: support "namespace path" sub-command and
-	  'namespace ensemble' sub-command [for Tcl/Tk8.5a3]
-
-Tue Jun 14 02:02:43 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/tkutil.c: add TkUtil::CallbackSubst.subst_arg(m, ...) &
-	  _define_attribute_aliases(hash) to get substitution-argument from
-	  attributes (e.g. subst_arg(:x,:y,:num,:button) --> "%x %y %b %b ").
-
-	* ext/tk/lib/tk/event.rb: use _define_attribute_aliases().
-
-Mon Jun 13 13:01:05 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* hash.c (ruby_setenv): fixed SEGV. [ruby-dev:26186]
-
-Mon Jun 13 01:54:20 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* signal.c (sigexit): call rb_thread_signal_exit() instead of
-	  rb_exit().  [ruby-dev:26347]
-
-	* eval.c (rb_thread_signal_exit): a new function to exit on main
-	  thread.
-
-	* eval.c (rb_thread_switch): exit status should be retrieved from
-	  ruby_errinfo.
-
-	* eval.c (rb_f_exit): ensure exit(0) should call
-	  exit(EXIT_SUCCESS).
-
-Mon Jun 13 01:20:02 2005  Tanaka Akira  <akr@m17n.org>
-
-	* eval.c (rb_gc_mark_threads): curr_thread may not be part of the
-	  thread list.  [ruby-dev:26312]
-
-Fri Jun 10 23:35:34 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* missing/mkdir.c: remove. [ruby-core:05177]
-
-Fri Jun 10 22:54:26 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* missing.h: fd_set stuffs need sys/types.h.  fixed: [ruby-core:05179]
-
-Thu Jun  9 23:58:12 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/Win32API/Win32API.c (Win32API_Call): disable global
-	  optimization. fixed: [ruby-core:05143]
-
-Thu Jun  9 23:35:22 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* enum.c (enum_inject): default the result value to Qundef to use
-	  first element as initial value if not given.
-
-Thu Jun  9 19:55:41 2005  Tanaka Akira  <akr@m17n.org>
-
-	* eval.c (ruby_longjmp): new macro to call longjmp, setcontext, etc.
-	  (ruby_setjmp): new macro to call setjmp, getcontext, etc.
-	  (ruby_setjmp): call setjmp before getcontext to avoid IA64 register
-	  stack problem.
-	  [ruby-talk:144939]
-
-	* gc.c (Init_stack): remove IA64_MAGIC_STACK_LIMIT.
-
-Thu Jun  9 11:55:34 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/delegate.rb (SimpleDelegator::__setobj__): need check for
-	  recursive delegation.  [ruby-core:04940]
-
-Wed Jun  8 18:47:10 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* misc/ruby-mode.el (ruby-expr-beg): fix looking point drift.
-
-Wed Jun  8 11:11:34 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* bignum.c (get2comp): calculate proper 2's complement for
-	  negative numbers.  a bug in normalizing negative numbers
-	  reported from Honda Hiroki <hhonda@ipflex.com>.
-
-Wed Jun  8 08:33:10 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* enum.c (enum_min_by, enum_max_by): return nil if no iteration.
-	  fixed: [ruby-dev:26245]
-
-	* eval.c (rb_need_block): ensure a block is given.
-
-	* eval.c (backtrace): skip successive frames sharing same node.
-
-Wed Jun  8 00:15:08 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/socket/socket.c (ruby_getaddrinfo__aix): merged a patch from
-	  KUBO Takehiro <kubo at jiubao.org> to support AIX.  [ruby-list:40832]
-
-Wed Jun  8 00:09:01 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/yaml/rubytypes.rb (Array::to_yaml): merged a patch from
-	  Tilman Sauerbeck <tilman at code-monkey.de>.  [ruby-core:05055]
-
-	* lib/yaml/rubytypes.rb (Hash::to_yaml): ditto.
-
-Wed Jun  8 00:00:01 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/curses/curses.c (curses_insertln): merged a patch from
-	  TAKAHASHI Tamotsu <ttakah at lapis.plala.or.jp>.  [ruby-ext:02305]
-
-Tue Jun  7 19:34:15 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/irb/init.rb (IRB::IRB.rc_file_generators): more flexible
-	  IRB.rc_file_generators.  [ruby-core:05163]
-
-Tue Jun  7 18:39:31 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/thread.rb: RDoc documentation from Eric Hodel
-	  <drbrain at segment7.net> added.  [ruby-core:05148]
-
-Tue Jun  7 18:30:04 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (create_makefile): add .SUFFIXES from depend file.
-	  fixed: [ruby-dev:26294]
-
-Tue Jun  7 17:39:54 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* object.c (rb_mod_cvar_get): Module#class_variable_get(): back
-	  ported from CVS HEAD.  [ruby-talk:144741]
-
-	* object.c (rb_mod_cvar_set): Module#class_variable_set().
-	  [ruby-talk:144741]
-
-Tue Jun  7 16:32:53 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* sprintf.c (rb_f_sprintf): raise exception on debug mode (-d),
-	  not verbose mode (-v/-w).  [ruby-core:05123]
-
-Tue Jun  7 10:30:49 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/multi-tk.rb: slave-ip fails to call procedures
-	  delegated by master-ip.
-
-Sun Jun  5 23:00:35 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/console.rb: create console when required
-
-	* ext/tk/sample/tkextlib/tile/demo.rb: fix TypeError & create Console
-
-Sat Jun  4 14:55:18 2005  Tanaka Akira  <akr@m17n.org>
-
-	* test/dbm/test_dbm.rb: merged from ext/dbm/testdbm.rb.
-
-	* test/gdbm/test_gdbm.rb: merged from ext/gdbm/testgdbm.rb.
-
-	* test/sdbm/test_sdbm.rb: renamed from ext/sdbm/testsdbm.rb with
-	  modification to use test/unit.
-
-Fri Jun  3 14:06:12 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/multi-tk.rb: fix typo.
-
-Wed Jun  1 11:32:42 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* bcc32/Makefile.sub: can use single quote character in DESTDIR.
-	  [ruby-dev:26205]
-
-Mon May 30 23:48:29 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/macpkg.rb: add PACKAGE_NAME information of Tcl/Tk
-	  Extension.
-
-	* ext/tk/lib/tk/msgcat.rb: ditto.
-
-	* ext/tk/lib/tk/winpkg.rb: ditto.
-
-	* ext/tk/lib/tkextlib/*: ditto.
-
-Sat May 28 16:40:15 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* test/openssl/test_x509store.rb: add test for expired CRL
-	  and refine some assertions.
-
-Sat May 28 05:15:51 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_x509store.c (ossl_x509stctx_set_time): should
-	  not set internal flag directry.
-
-Sat May 28 02:00:11 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/cgi.rb (WEBrick::CGI::Socket#request_line):
-	  ENV["REQUEST_URI"] is better to get correct Request-URI
-	  than ENV["SCRIPT_NAME"] + ENV["PATH_INFO"].  [ruby-dev:26235]
-
-Fri May 27 16:32:04 2005  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* lib/mkmf.rb: use the semicolon as the path separator
-	  in the environment of MSYS.  fixed: [ruby-dev:26232]
-
-Thu May 26 06:08:11 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: add shortcut-methods of tk_call + tk_split_list
-
-Wed May 25 22:52:42 2005  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/irb/input-method.rb: do not use Readline::HISTORY.pop.
-	  (backported from HEAD)
-
-Wed May 25 21:55:40 2005  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* ext/readline/readline.c: supported libedit. (backported from HEAD)
-
-	* ext/readline/extconf.rb: ditto.
-
-	* test/readline/test_readline.rb: ditto.
-
-Wed May 25 20:06:27 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: TkComm#tk_split_*list fail to split a kind of SJIS
-	  strings. To avoid the trouble, add arguments to control converting
-	  encoding, and do split on a UTF8 string.
-
-	* ext/tk/lib/multi-tk.rb: modify to attend encoding.
-
-	* ext/tk/lib/remote-tk.rb: ditto.
-
-	* ext/tk/lib/tk/itemconfig.rb: ditto.
-
-	* ext/tk/lib/tk/listbox.rb: ditto.
-
-	* ext/tk/lib/tk/namespace.rb: ditto.
-
-	* ext/tk/lib/tk/panedwindow.rb: ditto.
-
-	* ext/tk/lib/tk/text.rb: ditto.
-
-	* ext/tk/lib/tk/textmark.rb: ditto.
-
-	* ext/tk/lib/tk/texttag.rb: ditto.
-
-	* ext/tk/lib/tk/variable.rb: ditto.
-
-	* ext/tk/lib/tk/winfo.rb: ditto.
-
-	* ext/tk/lib/tkextlib/iwidgets/scrolledlistbox.rb: ditto.
-
-	* ext/tk/lib/tkextlib/iwidgets/scrolledtext.rb: ditto.
-
-	* ext/tk/lib/tk.rb: add TkWindow#lower_window/raise_window and
-	  Tk#lower_window/raise_window by reason of method-name conflict
-
-	* ext/tk/lib/tk/canvas.rb: bug fix on TkCanvas#delete when given
-	  non-TkcItem arguments.
-
-	* ext/tk/lib/tkextlib/iwidgets/scrolledcanvas.rb: ditto.
-
-Wed May 25 12:59:48 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/open-uri.rb (OpenURI::Meta::RE_QUOTED_STRING): a content of
-	  quoted-string should be zero or more characters.
-
-Tue May 24 23:42:16 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* numeric.c (fix_pow): support Fixnum ** Float case directly
-	  without coercing.  [ruby-talk:142697] [ruby-talk:143054]
-
-Tue May 24 16:57:24 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ruby.c (require_libraries): caused SEGV when continuation jumped
-	  in to the required library code.
-
-Tue May 24 11:56:25 2005  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* lib/getopts.rb: should warn only if verbose mode.
-	  fixed: [ruby-dev:26201]
-
-Tue May 24 06:45:31 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* misc/ruby-mode.el (ruby-font-lock-syntactic-keywords): string
-	  literals to be matched non-greedy.
-
-Tue May 24 00:34:32 2005  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* test/soap/calc: method name 'set' was able to crash with a class Set.
-	  [ruby-dev:26210]
-
-	* test/wsdl/document/test_rpc.rb: dateTime comparison failed under
-	  TZ=right/Asia/Tokyo (with leap second.) [ruby-dev:26208]
-
-Mon May 23 16:24:05 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/extconf.rb: Framework support on MacOS X Tiger.
-
-	* ext/tcltklib/README.1st: add description of Framework support options.
-
-Mon May 23 12:21:37 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* re.c (make_regexp): should not return junk address during
-	  compile time.  [ruby-dev:26206]
-
-Sun May 22 21:54:06 2005  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* lib/{soap,wsdl,xsd}, test/{soap,wsdl,xsd}: imported soap4r/1.5.4.
-
-	  == SOAP client and server ==
-
-	  === for both client side and server side ===
-
-	  * improved document/literal service support.
-	    style(rpc,document)/use(encoding, literal) combination are all
-	    supported.  for the detail about combination, see
-	    test/soap/test_style.rb.
-
-	  * let WSDLEncodedRegistry#soap2obj map SOAP/OM to Ruby according to
-	    WSDL as well as obj2soap.  closes #70.
-
-	  * let SOAP::Mapping::Object handle XML attribute for doc/lit service.
-	    you can set/get XML attribute via accessor methods which as a name
-	    'xmlattr_' prefixed (<foo name="bar"/> -> Foo#xmlattr_name).
-
-	  === client side ===
-
-	  * WSDLDriver capitalized name operation bug fixed.  from
-	    1.5.3-ruby1.8.2, operation which has capitalized name (such as
-	    KeywordSearchRequest in AWS) is defined as a method having
-	    uncapitalized name. (converted with GenSupport.safemethodname
-	    to handle operation name 'foo-bar').  it introduced serious
-	    incompatibility; in the past, it was defined as a capitalized.
-	    define capitalized method as well under that circumstance.
-
-	  * added new factory interface 'WSDLDriverFactory#create_rpc_driver'
-	    to create RPC::Driver, not WSDLDriver (RPC::Driver and WSDLDriver
-	    are merged).  'WSDLDriverFactory#create_driver' still creates
-	    WSDLDriver for compatibility but it warns that the method is
-	    deprecated.  please use create_rpc_driver instead of create_driver.
-
-	  * allow to use an URI object as an endpoint_url even with net/http,
-	    not http-access2.
-
-	  === server side ===
-
-	  * added mod_ruby support to SOAP::CGIStub.  rename a CGI script
-	    server.cgi to server.rb and let mod_ruby's RubyHandler handles the
-	    script.  CGIStub detects if it's running under mod_ruby environment
-	    or not.
-
-	  * added fcgi support to SOAP::CGIStub.  see the sample at
-	    sample/soap/calc/server.fcgi.  (almost same as server.cgi but has
-	    fcgi handler at the bottom.)
-
-	  * allow to return a SOAPFault object to respond customized SOAP fault.
-
-	  * added the interface 'generate_explicit_type' for server side
-	    (CGIStub, HTTPServer).  call 'self.generate_explicit_type = true'
-	    if you want to return simplified XML even if it's rpc/encoded
-	    service.
-
-	  == WSDL ==
-
-	  === WSDL definition ===
-
-	  * improved XML Schema support such as extension, restriction,
-	    simpleType, complexType + simpleContent, ref, length, import,
-	    include.
-
-	  * reduced "unknown element/attribute" warnings (warn only 1 time for
-	    each QName).
-
-	  * importing XSD file at schemaLocation with xsd:import.
-
-	  === code generation from WSDL ===
-
-	  * generator crashed when there's '-' in defined element/attribute
-	    name.
-
-	  * added ApacheMap WSDL definition.
-
-	* sample/{soap,wsdl}: removed.
-
-Sun May 22 19:11:35 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* 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.
-
-Sat May 21 10:24:21 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* bcc32/Makefile.sub: tds files were not deleted when DESTDIR
-	  included '\' path delimiter. [ruby-dev:26193]
-
-Thu May 19 19:04:29 2005  speakillof  <speakillof@yahoo.co.jp>
-
-	* lib/rexml/encodings/SHIFT-JIS.rb: encoding and decoding were
-	  swapped. [ruby-core:4772]
-
-Wed May 18 23:42:25 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (exc_exception): reverted to call Exception#initialize
-	  directly.  fixed: [ruby-dev:26177]
-
-Wed May 18 23:39:09 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dir.c (glob_helper): get rid of using String.  [ruby-dev:26180]
-
-	* dir.c (push_braces): should skip balanced braces.
-
-	* eval.c (ruby_options), win32/win32.c (NtInitialize): move argument
-	  intialization back.  [ruby-dev:26180]
-
-Tue May 17 15:31:31 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/httpserver.rb (WEBrick::HTTPServer#run): should
-	  break the loop if the socket reached to EOF. [ruby-talk:142285]
-
-Tue May 17 11:52:18 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (unixtime_to_filetime): use localtime() instead of
-	  gmtime() when using FileLocalTimeToFileTime().
-
-Mon May 16 22:28:43 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.h, {bcc32,win32,wince}/Makefile.sub: moved rb_[ugp]id_t
-	  to get rid of redefinition warnings on mingw.
-
-	* class.c (rb_class_init_copy): singleton class is disallowed to copy,
-	  from its definition.  fixed: [ruby-talk:142749]
-
-Mon May 16 08:52:29 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* win32/win32.{h,c}: define rb_[pgu]id_t.
-
-Mon May 16 00:21:02 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/pathname.rb (Pathname#unlink): use SystemCallError instead of
-	  Errno::EISDIR because EISDIR is not portable.
-	  [ruby-core:5001]
-
-Sun May 15 22:11:33 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/drb.rb (DRbObject#method_missing): use raise(exception).
-	  [ruby-dev:26164]
-
-Sun May 15 18:56:35 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in, ruby.h: define rb_[pgu]id_t macros instead of typedefs
-	  to get rid of types which might not be defined yet.  [ruby-dev:26165]
-
-Sun May 15 14:35:46 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/pathname.rb (Pathname#unlink): unlink a symlink to a directory
-	  was failed.  [ruby-core:4992]
-
-Sun May 15 09:57:30 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.c (unixtime_to_filetime): deal with DST.
-	  [ruby-talk:141817]
-
-Sat May 14 23:59:11 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (exc_exception, {exit,name_err,syserr}_initialize): call
-	  Execption#initialize.  fixed: [ruby-talk:142593]
-
-Sat May 14 23:57:26 2005  Erik Huelsmann  <ehuels@gmail.com>
-
-	* configure.in: Check for the availability of pid_t, gid_t and uid_t and
-	  remove AC_TYPE_UID_T.  fixed: [ruby-core:04745]
-
-	* defines.h: Remove pid_t typedef.
-
-	* ruby.h: Define rb_pid_t, rb_gid_t and rb_uid_t in accordance with
-	 the available system types.
-
-	* process.c: Change instances of pid_t and gid_t to their rb_*
-	 counterparts.
-
-	* ext/pty/pty.c: Change pid_t to rb_pid_t.
-
-	* vms/config.h: Define HAVE_{P,G,U}ID_T to 1.
-
-	* win32/Makefile.sub: Remove #define for {g,u}id_t.
-
-	* win32/win32.c: Change pid_t to rb_pid_t.
-
-	* wince/Makefile.sub: Remove #define for {g,u}id_t.
-
-	* wince/sys/types.h: Remove definitions of {p,g,u}id_t.
-
-Fri May 13 23:44:22 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb: keep srcdir unexpanded.
-
-	* lib/mkmf.rb (create_makefile): quote topdir and hdrdir if necessary.
-	  fixed: [ruby-core:04932]
-
-	* lib/mkmf.rb (configuration), {bcc32,win32,wince}/Makefile.sub: make
-	  also INSTALL_PROG and INSTALL_DATA system dependent.
-	  fixed: [ruby-core:04931]
-
-Fri May 13 17:54:39 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* variable.c (generic_ivar_get): rb_attr_get should not warn.
-	  [ruby-dev:26010]
-
-Fri May 13 12:28:43 2005  Daniel Berger  <djberge@qwest.com>
-
-	* array.c (rb_ary_select): can remove argc check. [ruby-core:4911]
-
-	* test/ruby/test_array.rb: add test for find_all.
-
-Fri May 13 11:29:00 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* eval.c (unknown_node): add volatile directive to prototype.
-
-Thu May 12 17:08:48 2005  Tanaka Akira  <akr@m17n.org>
-
-	* io.c (rb_io_eof, remain_size, read_all, io_read, appendline)
-	  (swallow, rb_io_each_byte, rb_io_getc): revert previous change.
-
-	* io.c (rb_io_eof, io_fread, appendline, swallow, rb_io_each_byte)
-	  (rb_io_getc, rb_getc): call clearerr before getc to avoid
-	  stdio incompatibility.
-
-Thu May 12 16:52:20 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* lib/rdoc/parsers/parse_c.rb: more readability for mixing
-	  progress "c..." and warning message.
-
-Thu May 12 16:31:00 2005  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/nkf/nkf-utf8/nkf.c: follow nkf 2.0.5
-
-Thu May 12 16:15:01 2005  Tanaka Akira  <akr@m17n.org>
-
-	* io.c (rb_io_eof, remain_size, read_all, io_read, appendline)
-	  (swallow, rb_io_each_byte, rb_io_getc): don't rely EOF flag.
-	  [ruby-talk:141527]
-
-Thu May 12 15:56:20 2005  Tilman Sauerbeck  <tilman@code-monkey.de>
-
-	* lib/rdoc/parsers/parse_c.rb: show parsing progress for C files.
-	  [ruby-core:4341]
-
-Thu May 12 13:47:56 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* test/drb/test_drb{ssl,unix}.rb: can test drb
-	  before install. (backported from HEAD) [ruby-dev:26146]
-
-Thu May 12 09:53:57 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* version.c (ruby_show_version): flush for non-tty stdout.
-
-Thu May 12 09:07:07 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* test/ruby/envutil.rb, test/drb/drbtest.rb: can test drb
-	  before install. (backported from HEAD) [ruby-Bugs-1672]
-
-Thu May 12 01:23:55 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_eval), parse.y (arg): reduce fixnum range literal at
-	  parser.  fixed: [ruby-dev:26113]
-
-	* eval.c (unknown_node): ignore broken NODE to get rid of accessing
-	  possibly inaccessible address.  fixed: [ruby-dev:26122]
-	  should emit more useful information like [ruby-dev:26126], though.
-
-Wed May 11 16:20:01 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/cgi.rb: new methods WEBrick::CGI#[], WEBrick::CGI#logger
-	  and WEBrick::CGI#config. (backported from HEAD)
-
-	* lib/webrick/httputils.rb (WEBrick::HTTPUtils.escape_path): should
-	  not use String#split("/"). (backported from HEAD)
-
-Wed May 11 15:58:39 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (break_jump): break should not cross functions.
-	  [ruby-list:40818]
-
-Wed May 11 10:39:37 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* lib/tempfile.rb (Tempfile#unlink): fixed typo.
-
-Wed May 11 01:03:36 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (TMP_ALLOC): use macro NEW_NODE() to get rid of warnings on
-	  platforms which have no alloca().  fixed: [ruby-talk:141301]
-
-Sun May  8 23:17:47 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/timer.rb: fix typo.
-
-Sun May  8 16:52:56 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* lib/profiler.rb: fixed "undefined method `[]' for nil:NilClass"
-	  [ruby-core:4775] [ruby-talk:140401] [ruby-dev:26118]
-
-Sat May  7 22:58:00 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (have_var): no libs argument is given.
-
-Sun May  1 09:58:11 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby.c (process_sflag): replace '-' in variable names with '_'.
-	  [ruby-dev:26107]
-
-	* ruby.c (set_arg0): use also environment variable space for setting
-	  $0.  [ruby-core:04774]
-
-Wed Apr 27 23:42:22 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/Makefile.sub (OPTFLAGS): default global optimization to
-	  disabled only for VC++6.
-
-Tue Apr 26 22:58:00 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c (ip_invoke_core): call Tcl's "::unknown"
-	  command when can't get information of target command.
-
-Mon Apr 25 01:18:43 2005  Tanaka Akira  <akr@m17n.org>
-
-	* regex.c: declare rb_warn to have variadic argument.  [ruby-core:4751]
-
-Sat Apr 23 19:45:59 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/tcltklib/tcltklib.c (ip_RubyExitCommand): exit with status code
-	  via TclTkIp#_eval didn't work. [ruby-talk:139390]
-
-Fri Apr 22 16:41:50 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/tcltklib/tcltklib.c (ip_set_exc_message): fixed memory leak.
-
-	* ext/tcltklib/tcltklib.c: eTkCallbackReturn was not initialized.
-
-Thu Apr 21 00:07:50 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (create_makefile): support platforms have file separator
-	  other than /.
-
-	* {bcc32,win32,wince}/Makefile.sub (BUILD_FILE_SEPARATOR): separator
-	  of building platform.
-
-	* {bcc32,win32,wince}/Makefile.sub (CP, INSTALL): use COPY command.
-
-Wed Apr 20 23:22:39 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* Makefile.in, common.mk: miniruby depens on MINIOBJS.
-
-	* dmydln.c (dln_load): dummy function to raise LoadError.
-
-	* cygwin/GNUmakefile.in, {bcc32,win32,wince}/Makefile.sub: miniruby
-	  can't load extensions on Windows.
-
-Wed Apr 20 23:01:35 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/ifchange.bat: delete testing files.
-
-Wed Apr 20 07:27:18 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* {bcc32,win32,wince}/configure.bat, {bcc32,win32,wince}/setup.mak:
-	  add extout option.
-
-	* bcc32/setup.mak: make configuration variables overridable.
-
-Wed Apr 20 04:15:27 2005  Keiju Ishitsuka  <keiju@ruby-lang.org>
-
-	* lib/irb.rb lib/irb/* doc/irb: IRB 0.9.5
-
-Tue Apr 19 23:37:09 2005  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* lib/ftools.rb (File.safe_unlink): do not modify a symlinked file.
-
-Tue Apr 19 00:06:20 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb: expand path for ext/**/extconf.rb.
-
-Mon Apr 18 11:25:14 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/zlib/zlib.c (zstream_run): fixed SEGV. [ruby-core:4712]
-
-Sun Apr 17 23:57:49 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb (extmake, parse_args): do not expand destdir.
-
-	* ext/extmk.rb (relative_from): treat mere drive letter as an absolute
-	  path.
-
-Sat Apr 16 17:01:16 2005  Kouhei Sutou  <kou@cozmixng.org>
-
-	* sample/rss/tdiary_plugin/rss-recent.rb (rss_recent_cache_rss):
-	  use the first date information of items as site date information
-	  if channel doesn't have date information.
-
-Sat Apr 16 15:27:03 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (RUBY_PROG_INSTALL): not add -p option to INSTALL.
-	  files need timestamps to be kept are only ar-archive on a few
-	  platforms, and be installed by instruby.rb but not INSTALL.
-	  fixed: [ruby-core:04721]
-
-	* mkconfig.rb: purge autoconf value variables.
-
-Sat Apr 16 10:36:01 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* bcc32/Makefile.sub: quick hack... prepend DESTDIR.
-	  still have restriction on DESTDIR ("", "/", "e:")
-
-Sat Apr 16 03:59:42 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/extconf.rb: check for OPENSSL_cleanse.
-
-	* ext/openssl/openssl_missing.h: ditto.
-
-Thu Apr 14 19:18:30 2005  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/fileutils.rb (remove_file): ignore exceptions caused by
-	  chmod.
-
-	* lib/fileutils.rb (remove_dir): try to get rights to rmdir.
-	  [ruby-Bugs:1502] (2 items backportted from HEAD, rev 1.53-54)
-
-Thu Apr 14 16:57:40 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* bcc32/Makefile.sub: failed to remove debug information files.
-	  fixed: [ruby-dev:26034]
-
-Wed Apr 13 23:40:21 2005  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb (RSS::VERSION): 0.1.3 -> 0.1.4.
-
-	* lib/rss/rss.rb (RSS::Element#converter): fixed converter
-	  transmission bug.
-
-Wed Apr 13 21:20:35 2005  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* configure.in (mingw32): extract msvcr*.dll from objdump result.
-
-Wed Apr 13 20:24:30 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (mingw32): use actual runtime DLL name as ruby DLL
-	  name and default load path.
-
-	* win32/Makefile.sub, win32/setup.mak: ditto.
-
-Tue Apr 12 15:33:09 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c (ip_finalize): better modification than the
-	  previous commit [ruby-dev:26029].
-
-Tue Apr 12 12:38:06 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c (ip_finalize): fix SEGV when Tcl_GlobalEval()
-	  modifies the argument string to eval.
-
-Tue Apr 12 02:21:55 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c (ip_finalize): add existence check of
-	  Tcl commands before calling Tcl_GlobalEval().
-
-Mon Apr 11 23:47:21 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/drb.rb: [druby-ja:123] fix: When reference of my object is
-	  loaded, the object is tainted.
-
-	* test/drb/test_drb.rb: ditto.
-
-Mon Apr 11 22:18:23 2005  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* dir.c, file.c (lstat): avoid warnings for mingw.
-
-Mon Apr 11 20:11:06 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c (ip_finalize): adhoc patch to avoid SEGV
-	  when exit on Tcl/Tk8.3.x.
-
-Mon Apr 11 15:26:25 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* lib/mkmf.rb (configuration): shouldn't output hdrdir twice.
-
-Mon Apr 11 12:09:05 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* {bcc32,win32,wince}/Makefile.sub: ri data was not installed
-	  into correct path. [ruby-dev:26011]
-
-	* bcc32/Makefile.sub: defaulted install-nodoc. [ruby-dev:26011]
-
-Sun Apr 10 10:12:42 2005  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/win32ole.c(ole_invoke): retry after converting Qnil
-	  to VT_EMPTY.
-
-	* ext/win32ole/win32ole/tests/testWIN32OLE.rb: correct error
-	  message string "Unknown" => "unknown".
-
-Sat Apr  9 18:20:31 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/image.rb: support to create TkImage object without
-	  creating a new image object on Tk.
-
-	* ext/tk/lib/tk/menu.rb: use TkCommandNames on create_self()
-
-	* ext/tk/lib/tk/root.rb: TkRoot.to_eval() returns '.'.
-
-	* ext/tk/lib/tk/text.rb: add methods to create a TkText::IndexString
-	  from (x, y) coords.
-
-	* ext/tk/lib/tkextlib/tile/: add demo and update support status.
-
-Sat Apr  9 14:42:29 2005  Kouhei Sutou  <kou@cozmixng.org>
-
-	* sample/rss/tdiary_plugin/rss-recent.rb: supported configuration
-	  via Web browser.
-
-Sat Apr  9 11:59:57 2005  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss: backoported from HEAD.
-
-	* lib/rss: refactored.
-	  - gave a name to 'x'.
-	  - undef_method -> remove_method for avoiding a warning in ruby 1.6.
-
-	* lib/rss/parser.rb: @@setter -> @@setters.
-
-	* lib/rss/parser.rb
-	  (RSS::BaseListener.register_uri)
-	  (RSS::BaseListener.uri_registered?)
-	  (RSS::BaseListener.install_get_text_element):
-	  swapped the first argument and the second argument.
-
-	* lib/rss/taxonomy.rb: swapped the first argument and the second
-	  argument for RSS::BaseListener.install_get_text_element.
-	* lib/rss/image.rb: ditto.
-	* lib/rss/syndication.rb: ditto.
-	* lib/rss/dublincore.rb: ditto.
-	* lib/rss/parser.rb: ditto.
-	* lib/rss/1.0.rb: ditto.
-	* lib/rss/2.0.rb: ditto.
-	* lib/rss/0.9.rb: ditto.
-	* lib/rss/content.rb: ditto.
-
-	* lib/rss/parser.rb
-	  (RSS::BaseListener.install_setter)
-	  (RSS::BaseListener.register_uri): changed fallback way.
-
-	* lib/rss/parser.rb: added class name registry for complex model
-	  elements. (ex. have childlen elements, have some attributes and
-	  a child element and so on.)
-
-	* lib/rss/dublincore.rb: supported multiple Dublin Core items.
-	* lib/rss/maker/dublincore.rb: ditto.
-
-	* lib/rss/maker/image.rb: supproted new Dublin Core API.
-
-	* lib/rss/maker/base.rb: added default current_element implementation.
-
-	* lib/rss/trackback.rb (RSS::TrackBackUtils.new_with_value_if_need):
-	  moved to RSS::Utils.
-
-	* lib/rss/utils.rb (RSS::Utils.new_with_value_if_need):
-	  moved from RSS::TrackBackUtils.
-
-	* lib/rss/maker/image.rb: fixed invalid argument of
-	  add_need_initialize_variable bug.
-	* lib/rss/maker/trackback.rb: ditto.
-
-	* lib/rss/rss.rb (Hash#merge): added for ruby 1.6.
-
-	* lib/rss/rss.rb (RSS::BaseModel.date_writer): changed to accept nil
-	  for date value.
-
-	* test/test_dublincore.rb: added tests for plural accessor and
-	  multiple Dublin Core items.
-
-	* test/test_setup_maker_1.0.rb: fixed swapped actual and expected
-	  values.
-
-	* test/rss/rss-assertions.rb (assert_multiple_dublin_core): added
-	  an assertion for testing multiple Dublin Core items.
-
-	* test/rss/test_maker_dc.rb (test_rss10_multiple): added a test
-	  for making multiple Dublin Core items.
-
-	* test/rss/test_maker_dc.rb (test_date): added a test for #date=
-	  and #dc_date=.
-
-	* sample/rss/tdiary_plugin/rss-recent.rb:
-	  new option: @options['rss-recent.use-image-link']:
-	  use image as link instread of text if available.
-
-	* sample/rss/tdiary_plugin/rss-recent.rb (RSS_RECENT_VERSION):
-	  0.0.5 -> 0.0.6.
-
-Fri Apr  8 20:17:48 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb (extmake): hdrdir needs to be defined also in
-	  Config::CONFIG.
-
-	* lib/mkmf.rb (configuration, create_makefile): get rid of recursive
-	  macro reference.
-
-Fri Apr  8 18:26:56 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_ssl.c: add callbacks to OpenSSL::SSL::SSLContexts.
-	  - SSLContext#client_cert_cb=(aProc). it is called when a client
-	    certificate is requested by a server and no certificate was not
-	    set for the SSLContext. it must return an Array which includes
-	    OpenSSL::X509::Certificate and OpenSSL::PKey::RSA/DSA objects.
-	  - SSLContext#tmp_dh_callback=(aProc). it is called in key
-	    exchange with DH algorithm. it must return an OpenSSL::PKey::DH
-	    object.
-
-	* ext/openssl/ossl_ssl.c (ossl_sslctx_set_ciphers): ignore the
-	  argument if it's nil.
-
-	* ext/openssl/ossl_pkey.c
-	  (GetPrivPKeyPtr, ossl_pkey_sign): should call rb_funcall first.
-	  (DupPrivPKeyPtr): new function.
-
-	* ext/openssl/ossl_pkey_dh.c: add default DH parameters.
-
-	* ext/openssl/ossl_pkey.h: ditto.
-
-Fri Apr  8 01:55:20 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/sample/demos-{en,jp}/goldberg.rb: reduced window size.
-	  [ruby-dev:25992]
-
-Thu Apr  7 23:58:40 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb (extmake): keep directory names in Makefile as macros.
-
-	* lib/mkmf.rb (configuration, create_makefile): ditto.
-
-	* lib/mkmf.rb (CXX_EXT): separate C++ extensions.
-
-Thu Apr  7 17:43:25 2005  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (rb_call0): "return" event hook should be always executed
-	  if event_hooks is set.  fixed: [ruby-core:04662]
-	  (backported from HEAD)
-
-Mon Apr  4 23:17:52 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb (TkComm#array2tk_list): accept enc-mode argument to
-	  decide whether convert encoding of each element or not.
-
-	* ext/tk/lib/tk/variable.rb (TkVariable#value=): fail to convert the
-	  encoding of array elements when assign an array to an TkVariable
-	  object.
-
-Mon Apr  4 10:26:48 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/tk/lib/tk/dialog.rb: fixed typo.
-
-Sun Apr  3 17:16:33 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* win32/win32.{h,c} (rb_w32_fdopen): avoid warning on bcc32.
-	  (backported from HEAD)
-
-Sat Apr  2 23:38:54 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (CP, INSTALL): get rid of less portable options.
-
-	* lib/mkmf.rb (configuration, create_makefile): correct configuration
-	  variable.
-
-	* {bcc32,win32,wince}/{Makefile.sub,setup.mak}: leave prefix empty in
-	  config.status for backward compatibility.  fixed: [ruby-core:04649]
-
-	* lib/mkmf.rb (create_makefile): ensure library directories get made
-	  before copying libraries there.
-
-Sat Apr  2 16:59:46 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: forgot to update RELEASE_DATE
-
-	* ext/tk/lib/tk/variable.rb: fix namespace trouble when autoloading
-
-	* ext/tk/lib/tk/palette.rb: define Tcl variable 'tkPalette' as global
-
-	* ext/tk/lib/tk/dialog.rb: use array2tk_list method when calling
-	  Tk.ip_eval.
-
-	* ext/tk/lib/tk/autoload.rb: add autoload entry 'TkDialogObj' and
-	  'TkWarningObj'
-
-Sat Apr  2 02:19:11 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb (TkWindow.initialize): accept 'without_creating'
-	  option without 'widgetname' option to allow creating a widget object
-	  which is used as an argument of Tcl/Tk's widget allocation commands.
-
-	* ext/tk/lib/tk/image.rb (TkImage.initialize): accept 'imagename'
-	  option to create a image object by the given name.
-
-Thu Mar 31 22:23:51 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (SRC_EXT): exclude just case different suffixes on case
-	  insensitive file system platforms.
-
-	* README.EXT, README.EXT.ja (Appendix C): utility functions.
-
-Thu Mar 31 14:15:44 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_engine.c (ossl_engine_s_load): should return
-	  value. [ruby-dev:25971]
-
-Thu Mar 31 08:25:50 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk (RUBYOPT): clear for the environment RubyGems installed.
-
-	* common.mk (clean-local): keep $(PREP) files till distclean.
-
-	* common.mk (check): do all tests.
-
-Thu Mar 31 06:00:20 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_engine.c (ossl_engine_s_load): should not raise
-	  error even if the specified engine could not be loaded. (Dynamic
-	  engines don't have fixed name to load.)
-
-Thu Mar 31 00:18:27 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* win32/ifchange.bat, win32/rm.bat: backported from HEAD.
-
-Wed Mar 30 23:44:50 2005  Nobuyoshi Nakada  <nobu.nokada@softhome.net>
-
-	* Makefile.in, */Makefile.sub, */configure.bat,
-	  cygwin/GNUmakefile.in, common.mk, configure.in, ext/extmk.rb,
-	  lib/mkmf.rb, instruby.rb, runruby.rb: backport extout.
-	  [ruby-dev:25963]
-
-Wed Mar 30 17:41:48 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c: add TclTkIp#_create_console() method to
-	  create a Tcl/Tk's console window.
-
-	* ext/tk/lib/multi-tk.rb: support TclTkIp#_create_console() method.
-
-	* ext/tk/lib/remote-tk.rb: ditto.
-
-	* ext/tk/lib/tk/console.rb: ditto.
-
-	* ext/tk/lib/tk.rb: update RELEASE_DATE
-
-	* ext/tk/sample/demo-*/check2.rb: use 'return' in the Proc object.
-
-	* ext/tk/sample/tkextlib/**: ditto.
-
-Tue Mar 29 22:11:56 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* test/rinda/test_rinda.rb: use DRbObject.new_with instead of reinit.
-	  [ruby-dev:25961]
-
-Mon Mar 28 23:40:40 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/drb.rb: move method DRbObject#reinit to DRbObject.new_with.
-	  extract method DRbObject.prepare_backtrace. add DRb.regist_server,
-	  remove_server, fetch_server. change server in thread variable if
-	  in-proc server. [druby-ja:113]
-
-	* lib/drb/gw.rb: ditto.
-
-Mon Mar 28 20:43:34 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/syck/rubyext.c: get rid of warnings caused by a bug of VC.
-
-Mon Mar 28 08:39:49 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/iconv/iconv.c (iconv_create): Iconv::Failure requires 3
-	  arguments.  (pointed out by NaHi)
-
-Sat Mar 26 22:51:33 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb (_callback_entry_class?): add for checking whether
-	  a class is available for a callback entry.
-
-	* ext/tk/lib/tk.rb (after_cancel): add Tk.after_cancel(afterID) method.
-
-	* ext/tk/lib/tk.rb (array2tk_list): change from private module method
-	  of TkComm to public module method.
-
-	* ext/tk/lib/tk.rb (cget): add check that slot argument is not
-	  empty string.
-
-	* ext/tk/lib/tk.rb (configinfo): ditto.
-
-	* ext/tk/lib/tk/itemconfig.rb (itemcget): add check that slot argument
-	  is not empty string.
-
-	* ext/tk/lib/tk/itemconfig.rb (itemconfiginfo): ditto.
-
-	* ext/tk/lib/tk/entry.rb: add TkEntry#icursor and icursor= (alias of
-	  cursor and cursor= method).
-
-	* ext/tk/lib/tk/font.rb: improve font treatment when the font name is
-	  empty string.
-
-	* ext/tk/lib/tk/variable.rb: add :variable, :window and :procedure
-	  type.
-
-	* ext/tk/lib/tk/variable.rb: improve treatment of array-type
-	  tkvariable.
-
-	* ext/tk/lib/tkextlib/blt.rb: add commands for zooming.
-
-	* ext/tk/lib/tkextlib/blt/*: bug fix.
-
-	* ext/tk/lib/tkextlib/treectrl/tktreectrl.rb: bug fix and add methods
-	  to call TreeCtrl commands for bindings.
-
-	* ext/tk/sample/tkextlib/blt/*: new sample scripts.
-
-	* ext/tk/sample/tkextlib/treectrl/*: ditto.
-
-Fri Mar 25 10:53:16 2005  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* configure.in (WIN32_LEAN_AND_MEAN): removed because a lot of
-	  troubles.  [ruby-list:40721]
-
-Thu Mar 24 23:10:44 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (macro_defined?): try to compile for an old compiler
-	  which doesn't bail out at #error directive.  [ruby-dev:25818]
-
-	* lib/mkmf.rb (check_sizeof): refine logging messages.
-
-Thu Mar 24 03:57:48 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/utils.rb (WEBrick::Utils.create_listeners):
-	  - should raise ArgumentError if no port is specified.
-	  - even if the specified port is 0, all TCPServers should be
-	  initialized with the port given to the first one.
-
-	* lib/webrick/server.rb (WEBrick::GenericServer#initialize): if :Port
-	  parameter is 0, it should be updated with the port number which
-	  actually listened.
-
-Wed Mar 23 00:35:10 2005  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* test/ruby/test_settracefunc.rb (test_event): added tests for
-	  "class" and "end" and "raise".
-
-Tue Mar 22 22:40:18 2005  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (rb_call0): check event_hooks instead of trace_func.
-
-Tue Mar 22 17:30:44 2005  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (rb_add_event_hook): new function to add a hook function for
-	  interpreter events. (backported form HEAD)
-
-Sun Mar 20 22:51:19 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (mkmf_failed): check if Makefile is created without
-	  create_makefile.
-
-Sat Mar 19 23:48:10 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* misc/ruby-mode.el (ruby-expr-beg): returned true always.
-	  fixed: [ruby-list:40683]
-
-Sat Mar 19 00:41:02 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/font.rb: add some TkFont class methods to get font
-	  information without creating a TkFont object.
-
-	* ext/tk/lib/tkextlib/treectrl/tktreectrl.rb: bug fix and define some
-	  classes for components of Tk::TreeCtrl
-
-Thu Mar 17 17:42:13 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* struct.c (make_struct): allow non local-id field
-	  names. [ruby-core:04575]
-
-	* struct.c (inspect_struct): ditto.
-
-Wed Mar 16 23:36:02 2005  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (rb_call0): call_cfunc() should be protected.
-
-	* test/ruby/test_settracefunc.rb: added test for c-return.
-
-Wed Mar 16 22:20:25 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* object.c (str_to_id): fixed typo.
-
-Wed Mar 16 18:08:32 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_call0): reorganize "return" event post.
-
-Tue Mar 15 23:49:19 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/iconv/iconv.c (Init_iconv): InvalidEncoding also should include
-	  Iconv::Failure.
-
-Tue Mar 15 16:38:11 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/tkutil.c (ary2list): give wrong arguments to hash2kv()
-
-Mon Mar 14 19:39:33 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/timer.rb (TkTimer): forgot to clear @return_value
-	  when restarting
-
-	* ext/tk/lib/tk/sample/cd_timer.rb: new sample of TkRTTimer
-
-Mon Mar 14 12:21:03 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/timer.rb (TkRTTimer): forgot to reset the callback
-	  time. So, 'continue' do all callbacks between 'stop' and 'continue'.
-
-Mon Mar 14 08:14:56 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* object.c (str_to_id): warn for NUL containing strings.
-
-Mon Mar 14 00:13:49 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/timer.rb (TkRTTimer): correct calculation of offset
-	  value. get a little better accuracy.
-
-	* ext/tk/sample/demos-en/widget: use a binding with no local variables
-	  when eval a sample script.
-
-	* ext/tk/sample/demos-en/bind.rb: ditto.
-
-	* ext/tk/sample/demos-en/tcolor: ditto.
-
-	* ext/tk/sample/demos-jp/widget: ditto.
-
-	* ext/tk/sample/demos-jp/bind.rb: ditto.
-
-	* ext/tk/sample/demos-jp/tcolor: ditto.
-
-Sun Mar 13 10:04:17 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* test/rinda/test_rinda.rb: remove test_gc. [ruby-dev:25871]
-
-Thu Mar 10 19:12:06 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c (lib_eventloop_ensure): mis-delete a timer
-	  handler when exit from a recursive called eventloop
-
-	* ext/tk/lib/tk/timer.rb: new TkRTTimer class, which can works for a
-	  realtime operation
-
-	* ext/tk/sample/tkrttimer.rb: sample of TkRTTimer class
-
-	* ext/tk/lib/tk/textmark.rb: move  TkTextMark#+ and TkTextMark#- to
-	  TkText::IndexModMethods
-
-	* ext/tk/lib/tk/text.rb: improve TkTextMark#+ and TkTextMark#-, and
-	  add them to TkText::IndexModMethods module
-
-	* ext/tk/sample/tktextio.rb: add test part of "seek by text index
-	  modifiers"
-
-Thu Mar 10 08:10:11 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* re.c (make_regexp): need to free internal regexp structure when
-	  compilation fails.  [ruby-talk:133228]
-
-Wed Mar  9 20:25:58 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_ssl.c (ossl_start_ssl, ossl_ssl_write): call
-	  rb_sys_fail if errno isn't 0. [ruby-dev:25831]
-
-	* ext/openssl/lib/openssl/cipher.rb: fix typo. [ruby-dev:24285]
-
-Wed Mar  9 15:46:35 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/server.rb (WEBrick::GenericServer#start): should
-	  restore @token if accept failure. suggested by Dominique Brezinski.
-	  [ruby-core:04518]
-
-Wed Mar  9 13:37:57 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/sample/tktextio.rb: fix bug of handling 'end' position.
-	  support initial text, overwrite setting and pos_gravity control.
-
-Tue Mar  8 18:16:55 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/sample/tktextio.rb: New sample script. TkTextIO class in this
-	  sample supports to use a text widget as if it is a I/O stream (such
-	  like as StringIO class).
-
-Tue Mar  8 13:54:40 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/socket/socket.c: workaround for some of 4.4BSD-Lite derived OSs.
-
-Tue Mar  8 12:36:17 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/socket/socket.c: document from Sam Roberts
-	  <sroberts@uniserve.com> for getsockopt and setsockopt is merged.
-	  [ruby-doc:824]
-
-Tue Mar  8 01:27:00 2005  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/nkf/nkf-utf8/nkf.c: follow nkf 1.66
-	  fixed: [ruby-dev:25828]
-
-Mon Mar  7 21:35:02 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* sample/webrick/httpsd.rb: fix typo in comment. suggested by
-	  Kazuhiko Shiozaki.
-
-Mon Mar  7 14:55:43 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (block_pass): should not push unique number if a block is
-	  not an orphan.  [ruby-dev:25808]
-
-Wed Feb 16 02:55:21 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_ssl.c (ossl_start_ssl, ossl_ssl_read,
-	  ossl_ssl_write):
-	  - need to set errno on Win32 platform.
-	  - should call rb_sys_fail instead of rasing SSLError if
-	    SSL_ERROR_SYSCALL occured.
-	  - should wait for that the underlying IO become readable or
-	    writable if the error was SSL_ERROR_WANT_READ or
-	    SSL_ERROR_WANT_WRITE. [ruby-dev:25795]
-
-	* ext/openssl/lib/openssl/buffering.rb
-	  (Buffering#initialize): should set @eof and @rbuffer.
-	  (Buffering#fill_rbuff): should rescue Errno::EAGAIN.
-	  (Buffering#consume_rbuf): pointless eof flag resetting is deleted.
-	  (Buffering#read): should return an empty string if the specified
-	  size is zero.
-	  (Buffering#readpartial): new method.
-	  (Buffering#readline): fix typo.
-	  (Buffering#getc): return the first character of string correctly.
-	  (Buffering#each): fix typo.  suggested by Brian Ollenberger.
-	  (Buffering#readchar): fix typo.
-	  (Buffering#eof?): should read again it the input buffer is empty.
-	  (Buffering#do_write): should rescue Errno::EAGAIN.
-	  (Buffering#puts): use "\n" as the output field separator.
-
-	* ext/openssl/lib/openssl/ssl.rb: set non-blocking flag to the
-	  underlying IO.
-
-	* ext/openssl/extconf.rb: get rid of GNUmakefile generation.
-
-	* text/openssl/test_pair.rb: test for IO like methods.
-
-	* test/ruby/ut_eof.rb: test about empty file.
-
-Mon Mar  7 10:22:06 2005  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* lib/un.rb: should use OptionParser. (backported form HEAD)
-
-Mon Mar  7 09:18:42 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (rb_str_cmp_m): should not return false but nil.
-	  fixed: [ruby-dev:25811]
-
-Mon Mar  7 01:22:14 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/tkutil.c: remove the some codes which depend on the
-	  difference between Ruby1.8 and 1.9, because st.c on Ruby1.9
-	  was changed.
-
-Mon Mar  7 00:01:04 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c: fail to call TclTkLib.mainloop when $SAFE==4
-
-Sun Mar  6 16:41:33 2005  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/net/http.rb: HTTPHeader holds its header fields as an array
-	  (backport from CVS HEAD rev 1.112-1.123). [ruby-list:40629]
-
-	* test/net/http/test_httpheader.rb: new file.
-
-Sun Mar  6 11:47:10 2005  Sam Roberts  <sroberts@uniserve.com>
-
-	* lib/pp.rb: rdoced.  [ruby-core:4490]
-
-Sun Mar  6 11:36:37 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/pp.rb (File::Stat#pretty_print): Etc.getpwuid and Etc.getgrgid
-	  may return nil.  [ruby-talk:129826]
-	  reported by Daniel Berger.
-
-Sat Mar  5 18:06:21 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* dir.c (fnmatch): removed unnecessary code. (ruby_1_8 didn't have
-	  String#clear, so [ruby-dev:24749] didn't affect it)
-
-	* win32/win32.c (NtInitialize): ditto. (by numeric.c 1.101.2.14)
-
-Sat Mar  5 16:29:26 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/multi-tk.rb: freeze callback-entry objects
-
-	* ext/tk/lib/tkextlib/tile.rb: support tile-0.6
-
-Fri Mar  4 19:39:28 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/rdoc/parsers/parse_c.rb (RDoc::C_Parser#do_includes): replace
-	  also locally defined modules.
-
-	* ext/iconv/iconv.c: backport Iconv::InvalidEncoding from CVS HEAD.
-
-	* ext/strscan/strscan.c: moved misplaced rdoc.
-
-Fri Mar  4 15:58:12 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/cgi-lib.rb: add deprecation warning. [ruby-dev:25499]
-	  getopts.rb, parsearg.rb, importenv.rb as well.
-
-Fri Mar  4 11:17:06 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c (ip_rbUpdateCommand): get rid of
-	  warnings with Tcl/Tk 8.3 or former (backport from CVS_HEAD).
-
-	* ext/tcltklib/tcltklib.c (ip_rb_threadUpdateCommand): ditto.
-
-Fri Mar  4 10:15:30 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/set.rb (SortedSet::setup): a hack to shut up warning.
-	  [ruby-talk:132866]
-
-Fri Mar  4 07:07:00 2005  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/nkf/nkf-utf8/nkf.c: follow nkf 1.63
-
-Thu Mar  3 23:49:00 2005  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/nkf/nkf-utf8/nkf.c: follow nkf 1.62
-
-Thu Mar  3 11:49:51 2005  Kouhei Sutou  <kou@cozmixng.org>
-
-	* sample/rss/tdiary_plugin/rss-recent.rb: added site information.
-
-Wed Mar  2 19:53:07 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb (parse_args): add DESTDIR only when not directed
-	  already.  fixed: [ruby-dev:25781]
-
-Wed Mar  2 17:14:18 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c (lib_eventloop_core): fix typo
-
-Wed Mar  2 16:00:02 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c: enforce thread-check and exception-handling
-	  to avoid SEGV trouble.
-	  [KNOWN BUG] When supports pthread and running multiple Tk
-	  interpreters, an interrupt signal causes SEGV frequently. That
-	  may be a trouble of Ruby's signal handler.
-
-	* ext/tk/tkutil/tkutil.c; fix a bug on converting a SJIS string array
-	  to a Tcl's list string.
-
-	* ext/tk/tcltklib.c: wrap Tcl's original "namespace" command to
-	  protect from namespace crash.
-
-	* ext/tk/lib/multi-tk.rb: enforce exception-handling.
-
-	* ext/tk/lib/multi-tk.rb: catch IRB_EXIT to work on irb.
-
-	* ext/tk/lib/tk.rb: ditto.
-
-	* ext/tk/tcltklib.c: add TclTkLib.mainloop_thread?
-
-	* ext/tk/lib/multi-tk.rb: (bug fix) callback returns a value.
-
-	* ext/tk/lib/tk/canvas.rb (delete): bug fix when multiple arguments.
-
-	* ext/tk/lib/clock.rb: fix 'no method error'.
-
-	* ext/tk/lib/clock.rb (self.clicks): accept a Symbol argument.
-
-	* ext/tk/lib/variable.rb: be able to set default_value_type; :numeric,
-	  :bool, :string, :symbol, :list, :numlist or nil (default; same to
-	  :string). If set a type, TkVariable#value returns a value of the
-	  type.
-
-	* ext/tk/lib/tkextlib/tclx/tclx.rb: add Tk::TclX.signal to warn the
-	  risk of using TclX extension's 'signal' command.
-
-	* ext/tk/sample/irbtk.rb: irb with Ruby/Tk.
-
-	* ext/tk/sample/demos-*/anilabel.rb: bug fix on 'show code'
-
-	* ext/tk/sample/demos-*/aniwave.rb: new Ruby/Tk animation demo.
-
-	* ext/tk/sample/demos-*/pendulum.rb: ditto.
-
-	* ext/tk/sample/demos-*/goldberg.rb: ditto.
-
-	* ext/tk/sample/demos-*/widget: add entries of animation demos.
-
-Tue Mar  1 00:47:43 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* test/rinda/test_rinda.rb: backport from CVS_HEAD. use
-	  MockClock.sleep instead of Kernel.sleep [ruby-dev:25387]
-
-Tue Mar  1 00:34:24 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/rinda/tuplespace.rb (Rinda::TupleSpace): improved keeper thread.
-
-	* test/rinda/test_rinda.rb: ditto.
-
-Mon Feb 28 11:42:23 2005  Ian Macdonald  <ian@caliban.org>
-
-	* exception error messages updated.  [ruby-core:04497]
-
-Mon Feb 28 09:03:09 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/socket/socket.c (Init_socket): add bunch of Socket
-	  constants.  Patch from Sam Roberts <sroberts@uniserve.com>.
-	  [ruby-core:04409]
-
-Wed Feb 23 15:04:32 2005  akira yamada  <akira@ruby-lang.org>
-
-	* lib/uri/generic.rb (split_userinfo): should split ":pass" into ""
-	  and "pass".  [ruby-dev:25667]
-
-Wed Feb 23 08:00:18 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* array.c (rb_ary_s_create): no need for negative argc check.
-	  [ruby-core:04463]
-
-	* array.c (rb_ary_unshift_m): ditto.
-
-Wed Feb 23 01:57:46 2005  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/imap.rb (initialize): handle certs correctly. Thanks,
-	  NABEYA Kenichi. (backported from CVS HEAD)
-
-Tue Feb 22 07:25:18 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (parser_yylex): identfier after dot must not be a variable.
-
-Mon Feb 21 10:04:49 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* {bcc32,win32,wince}/Makefile.sub (config.h): add fcntl.
-
-	* win32/win32.[ch] (fcntl): ditto.
-
-	* win32/win32.c (rb_w32_connect): support nonblocking mode.
-
-	* ext/socket/socket.c (wait_connectable, ruby_connect): support
-	  nonblocking connect on various platforms.
-	  all changes are backported from CVS HEAD. [ruby-core:3154],
-	  [ruby-core:4364].
-
-Sun Feb 20 00:48:48 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/open-uri.rb (URI::FTP#buffer_open): access mechanism
-	  re-implemented according to RFC 1738.
-	  reported by Guillaume Marcais.  [ruby-talk:131650]
-
-Sat Feb 19 18:11:47 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/drb.rb (DRbObject#respond_to?): take two arguments.
-	  [ruby-dev:25722]
-
-	* test/drb/drbtest.rb: ditto.
-
-Sat Feb 19 13:52:02 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/open-uri.rb: call OpenSSL::SSL::SSLSocket#post_connection_check
-	  after connection is made.
-
-Sat Feb 19 01:32:03 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/bigdecimal/lib/bigdecimal/newton.rb: resolved LoadError.
-	  [ruby-dev:25685]
-
-	* ext/bigdecimal/sample/linear.rb: ditto.
-
-	* ext/bigdecimal/sample/nlsolve.rb: ditto.
-
-	* ext/bigdecimal/lib/bigdecimal/nlsolve.rb: removed because this file
-	  is sample script and same file exists in ext/bigdecimal/sample.
-
-Fri Feb 18 17:14:00 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/xmlrpc/parser.rb (XMLRPC::FaultException): make it subclass
-	  of StandardError class, not Exception class.  [ruby-core:04429]
-
-Thu Feb 17 20:11:18 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* lib/drb/drb.rb (DRbServer.default_safe_level): fix typo.
-
-Thu Feb 17 20:11:18 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/digest/test_digest.rb: separate test case for each algorithms.
-	  [ruby-dev:25412]
-
-Thu Feb 17 11:54:00 2005  Nathaniel Talbott  <ntalbott@ruby-lang.org>
-
-	* lib/test/unit/collector.rb (collect_file): now deletes paths added
-	  to $LOAD_PATH instead of restoring it verbatim.
-
-	* lib/test/unit/autorunner.rb (AutoRunner.run): fixed so that
-	  'ruby -rtest/unit -rtest1 -rtest2 -e0' will use the objectspace
-	  collector again. Also tried to simplify the calling convention.
-
-	* test/runner.rb: adjusted for new AutoRunner semantics.
-
-	* lib/test/unit.rb: ditto.
-
-Thu Feb 17 04:21:47 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/open3.rb (Open3::popen3): $? should not be EXIT_FAILURE.
-	  fixed: [ruby-core:04444]
-
-Thu Feb 17 00:09:45 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* test/drb/ignore_test_drb.rb: move TestDRbReusePort to new file
-	  [ruby-dev:25238]
-
-	* test/drb/test_drb.rb: add method DRbService.ext_service, move
-	  TestDRbReusePort to new file [ruby-dev:25238]
-
-	* test/drb/test_drb.rb: ditto.
-
-	* test/drb/test_drbssl.rb: ditto.
-
-	* test/drb/test_drbunix.rb: ditto.
-
-	* test/drb/ut_drb.rb: reduce sleep.
-
-Thu Feb 17 00:02:27 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (is_defined): NODE_IASGN is an assignment.
-
-Wed Feb 16 23:34:30 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/drb.rb: add lazy stop_service. ([druby-ja:109])
-
-	* lib/drb/extserv.rb: ditto.
-
-Wed Feb 16 17:07:57 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/tkutil.c: Follow the change of st.c (st_foreach)
-	  [ruby-list:40623].
-	  Sometimes mis-convert from a Ruby's Array of SJIS Strings, which
-	  includes some kind of SJIS characters, to a Tcl's UTF8 list string.
-
-Mon Feb 14 23:58:17 2005  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/parser.rb (RSS::ListenerMixin::tag_end):
-	  fixed invalid namespace handling bug.
-
-Mon Feb 14 13:12:38 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/lib/openssl/ssl.rb
-	 (OpenSSL::SSL::SSLSocket#post_connection_check): new method.
-
-Mon Feb 14 00:40:49 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/drb.rb (InvokeMethod.perform): pass DRb info to sub thread.
-
-	* test/drb/test_drb.rb (test_01_safe1_safe4_eval): fix test case.
-
-Sun Feb 13 23:13:46 2005  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/dublincore.rb (RSS::DublicCoreModel#date{,=}): added
-	  convenient methods.
-
-	* lib/rss/0.9.rb (RSS::Rss::Channel#date{,=}): ditto.
-
-	* lib/rss/2.0.rb (RSS::Rss::Channel::Item#date{,=}): ditto.
-
-	* test/rss/: added tests for the convenient methods.
-
-Sun Feb 13 22:43:03 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/drb.rb (DRbServer): add default_safe_level, safe_level,
-	  config[:safe_level] ([druby-ja:120])
-
-	* test/drb/test_drb.rb, ut_eval.rb, ut_safe1.rb: ditto.
-
-Sun Feb 13 16:56:52 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/cgi.rb (WEBrick::CGI.start): should set reason-phrase
-	  to the value of status header field. ([ruby-dev:40617])
-
-Sun Feb 13 00:52:33 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/erb.rb (ERB::Util.h, u): make it module_function.
-
-Sat Feb 12 17:29:19 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/open-uri.rb (OpenURI.open_loop): send authentication only for
-	  the URI directly specified.
-
-Sat Feb 12 15:07:23 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* random.c (rand_init): suppress warning.
-
-Sat Feb 12 13:54:03 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/open-uri.rb: support https if the platform provides CA
-	  certificates.
-
-Sat Feb 12 06:18:28 2005  URABE Shyouhei  <shyouhei@ice.uec.ac.jp>
-
-	* ext/etc/etc.c (Init_etc): sGroup needs HAVE_ST_GR_PASSWD check.
-	  [ruby-dev:25675]
-
-Fri Feb 11 17:40:42 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_x509store.c (ossl_x509store_set_default_paths):
-	  new method OpenSSL::X509::Store#set_default_paths.
-
-Fri Feb 11 11:33:53 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/open-uri.rb (URI::HTTP#proxy_open): new option supported:
-	  :http_basic_authentication.
-	  suggested by Kent Sibilev.  [ruby-core:4392]
-
-Fri Feb 11 06:30:07 2005  George Ogata  <g_ogata@optushome.com.au>
-
-	* misc/ruby-mode.el: ignore parenthesis inside heredoc.
-	  [ruby-core:04415]
-
-Fri Feb 11 04:54:13 2005  Tilman Sauerbeck  <tilman@code-monkey.de>
-
-	* lib/rdoc/generators/html_generator.rb: [ruby-core:04412]
-
-	* lib/rdoc/generators/ri_generator.rb: ditto.
-
-Thu Feb 10 11:14:17 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/Makefile.sub (COMMON_HEADERS): shouldn't include winsock2.h.
-
-	* ext/socket/extconf.rb (sockaddr_storage): remove workaround for
-	  mswin32.
-
-Thu Feb 10 10:29:16 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/curses/curses.c: don't need to check HAVE_WCOLOR_SET excluding
-	  window_color_set().
-
-Thu Feb 10 00:47:25 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* struct.c (make_struct): fixed: [ruby-core:04402]
-
-Wed Feb  9 08:07:08 2005  Paul Duncan  <pabs@pablotron.org>
-
-	* ext/curses/curses.c (window_color_set): [ruby-core:04393]
-
-Tue Feb  8 23:51:47 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/drb.rb: reject :instance_eval, :class_eval, :module_eval
-	  [druby-ja:117]
-
-Tue Feb  8 13:06:12 2005  Sam Roberts  <sroberts@uniserve.com>
-
-	* ext/socket/socket.c (Init_socket): SO_REUSEPORT added.
-	  [ruby-talk:130092]
-
-Tue Feb  8 09:30:01 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/cgi.rb (CGI::Cookie): [ruby-talk:130040]
-
-Tue Feb  8 00:19:02 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/resolv.rb (Resolv::DNS::Name#subdomain_of?): new method.
-	  (Resolv::DNS::Name#inspect): ditto.
-	  Suggested by Sam Roberts.  [ruby-talk:129086]
-
-Mon Feb  7 10:06:30 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* object.c: [ruby-doc:818]
-
-Mon Feb  7 01:56:20 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* instruby.rb, rubytest.rb (srcdir): no longer embed srcdir into
-	  rbconfig.rb. (backported from CVS HEAD)
-
-	* ext/socket/extconf.rb (sockaddr_storage): winsock2.h have the
-	  definition of struct sockaddr_storage, but socket.c doesn't
-	  include it because this version of ruby still has binary level
-	  compatibility with winsock1.
-
-	* lib/mkmf.rb (create_makefile): should support header files in
-	  depend file.
-
-Mon Feb  7 01:21:50 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/socket/extconf.rb: check if getaddrinfo() works fine only when
-	  wide-getaddrinfo option is not given.  fixed: [ruby-dev:25422]
-
-	* lib/mkmf.rb ($extmk): check if under ext directory.
-
-	* lib/mkmf.rb (Logging.postpone): allow recursive operation.
-
-	* lib/mkmf.rb (try_constant): make sure if really a constant, reduce
-	  the number of times of compile.
-
-	* lib/mkmf.rb (have_macro, have_var, byte_order): new functions.
-
-	* lib/mkmf.rb (find_library): allow directory list with separators.
-
-	* lib/mkmf.rb (arg_config): manage provided configuration options.
-
-	* lib/mkmf.rb (dir_config): accept arrays of directory names as
-	  default values.
-
-	* mkconfig.rb: no longer embed srcdir and compile_dir into
-	  rbconfig.rb.
-
-	* lib/mkmf.rb (create_makefile): fix unbalanced parens.
-
-Sun Feb  6 19:23:01 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* eval.c (stack_extend): add prototype because VC++8 doesn't
-	  accept __declspec(noinline) with K&R style function definitions.
-	  (backported from CVS HEAD)
-
-Sun Feb  6 14:14:26 2005  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date.rb (new_with_hash): changed messages of exception.
-
-	* lib/date/format.rb (str[fp]time): undocumented conversion
-	  specifications %[1-3] are now deprecated.
-
-Sun Feb  6 12:20:11 2005  Akinori MUSHA  <knu@iDaemons.org>
-
-	* bignum.c (rb_big2ulong_pack): One too many arguments are passed
-	  to big2ulong().
-
-	* re.c (rb_reg_init_copy, rb_reg_initialize_m): One too many
-	  arguments are passed to rb_reg_initialize().
-
-Sun Feb  6 03:24:20 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/resolv.rb (Resolv::DNS::Resource::TXT): multiple strings was not
-	  handled.
-	  (Resolv::DNS::Resource::TXT#strings): new method to return all
-	  strings.
-	  (Resolv::DNS::Message::MessageEncoder#put_string_list): new method.
-	  (Resolv::DNS::Message::MessageDecoder#get_string_list): ditto.
-	  based on [ruby-talk:129732] by Sam Roberts.
-
-Fri Feb  4 00:30:45 2005  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss: supported Image module.
-	  http://web.resource.org/rss/1.0/modules/image/
-
-Thu Feb  3 23:42:36 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/stringio/stringio.c (strio_close, strio_close_read, strio_close_write):
-	  should return nil instead of self as well as IO.  [ruby-dev:25623]
-
-	* ext/stringio/stringio.c (strio_extend, strio_putc): fill with zero
-	  extended portion.  [ruby-dev:25626]
-
-Wed Feb  2 23:52:53 2005  sheepman  <sheepman@tcn.zaq.ne.jp>
-
-	* ext/stringio/stringio.c (strio_truncate): should MEMZERO an extended
-	  part.  [ruby-dev:25618]
-
-Wed Feb  2 21:56:01 2005  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb (RSS::Element#convert): added.
-
-	* lib/rss/rss.rb: convert -> need_convert.
-
-	* lib/rss/1.0.rb: ditto.
-
-	* lib/rss/0.9.rb: ditto.
-
-	* lib/rss/2.0.rb: ditto.
-
-	* lib/rss/trackback.rb: ditto.
-
-Tue Feb  1 22:48:48 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/drb.rb (DRb::DRbObject#respond_to?): check marshal_dump and
-	  _dump.
-
-Tue Feb  1 00:20:23 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (aix): fix linker flags on AIX.  [ruby-talk:125460]
-
-Mon Jan 31 13:33:21 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c: add invalid namespace check
-
-	* ext/tk/lib/multi-tk.rb: add invalid_namespace? method
-
-	* ext/tk/lib/remote-tk.rb: ditto
-
-Mon Jan 31 10:29:18 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/irb/context.rb (IRB::Context::initialize): [ruby-core:04330]
-
-Sat Jan 29 09:42:12 2005  Sam Roberts  <sroberts@uniserve.com>
-
-	* lib/resolv.rb (Resolv::DNS::Resource::IN::SRV): Added RFC2782 SRV
-	  resource record for specifying location of services.
-
-Fri Jan 28 17:16:55 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/resolv.rb (Resolv::DNS::Config.parse_resolv_conf):
-	  parse options line for ndots option.
-	  (Resolv::Hosts#lazy_initialize): return self.
-	  (Resolv::DNS#lazy_initialize): ditto.
-	  (Resolv::DNS::Config#lazy_initialize): ditto.
-	  Suggested by Sam Roberts.
-
-Thu Jan 27 13:18:03 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* st.c (st_foreach): report success/failure by return value.
-	  [ruby-Bugs-1396]
-
-Thu Jan 27 00:15:29 2005  Minero Aoki  <aamine@loveruby.net>
-
-	* test/fileutils/test_fileutils.rb (setup): support BSD-style
-	  directory group inheritance. (backport from HEAD, rev 1.32)
-
-	* test/fileutils/fileasserts.rb (assert_same_entry): show entry
-	  difference. (backport from HEAD, rev 1.4)
-
-Wed Jan 26 23:09:11 2005  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/net/protocol.rb (WriteAdapter#puts): should append \n, not
-	  prepend. [ruby-talk:128302] (backport from HEAD, rev 1.75)
-
-Wed Jan 26 10:51:50 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (flock_winnt, flock_win95): unlock file even if
-	  LOCK_NB is specified. (backported from CVS HEAD)
-
-Tue Jan 25 17:11:51 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ruby.c (proc_options): correct -T option in RUBYOPT. (backported
-	  from CVS HEAD)
-
-Tue Jan 25 14:05:52 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c: fix SEGV bug; trouble on canceling remained
-	  after scripts [ruby-dev:25479]: NULL current namespace when deleting
-	    Tk interpreter [ruby-talk:126225]
-
-	* ext/tcltklib/extconf.rb: bug fix; TCL_ENABLE_THREAD flag is inverted
-	  [ruby-talk:126360]
-
-	* ext/tcltklib/extconf.rb: add yet another native-thread check
-
-	* ext/tk/tkutil.c: fix SEGV bug; NULL string pointer when finalize
-	  Ruby interpreter
-
-	* ext/tk/lib/multi-tk.rb: avoid warning for deleted safeTk ip frame
-
-	* ext/tk/lib/tk/bindtag.rb: bug fix; new method of named bindtag
-	  doesn't return the created object [ruby-dev:25479]
-
-	* ext/tk/lib/tk/menu.rb: bug on treating arguments [ruby-dev:25479]
-
-	* ext/tk/lib/tk.rb: bug fix; cannot accept a callback ID string for
-	  a command argument [ruby-dev:25479]
-
-	* ext/tk/lib/multi-tk.rb: ditto
-
-	* ext/tk/lib/tk/*.rb: ditto
-
-	* ext/tk/lib/tkextlib/*.rb: ditto
-
-	* ext/tk/sample/demos-jp/anilabel.rb: new demo script
-
-	* ext/tk/sample/demos-en/anilabel.rb: ditto
-
-	* ext/tk/sample/tkHTML/ss.rb: local variable scope bug fix
-	  [ruby-dev:25479]
-
-Mon Jan 24 15:44:25 2005  Tilman Sauerbeck  <tilman@code-monkey.de>
-
-	* lib/rdoc/parsers/parse_c.rb: allow whitespace after function names.
-	  [ruby-core:4296]
-
-	* lib/rdoc/parsers/parse_simple.rb: adds support for private comments
-	  in the "simple" parser. [ruby-core:4301]
-
-Mon Jan 24 15:44:25 2005  Charles Mills  <cmills@freeshell.org>
-
-	* lib/rdoc/parsers/parse_c.rb: adds support for constants
-	  (rb_define_const), accessors (rb_define_attr), and makes a
-	  couple fixes. [ruby-core:4307]
-
-Mon Jan 24 15:44:25 2005  Florian Gro  <florgro@gmail.com>
-
-	* lib/rdoc/parsers/parse_rb.rb: Logic for def Builtin.method() end
-	  [ruby-core:4302]
-
-Mon Jan 24 15:44:25 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* document updates - [ruby-core:04296], [ruby-core:04301],
-	  [ruby-core:04302], [ruby-core:04307]
-
-Sun Jan 23 12:41:16 2005  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* lib/soap/wsdlDriver.rb: from 1.5.3-ruby1.8.2, operation which has
-	  capitalized name (such as KeywordSearchRequest in AWS) is defined as
-	  a method having uncapitalized name. (converted with
-	  GenSupport.safemethodname to handle operation name 'foo-bar').  it
-	  introduced serious incompatibility; in the past, it was defined as a
-	  capitalized.
-
-	  define capitalized method as well under that circumstance.
-
-Sun Jan 23 05:24:42 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_ocsp.c (ossl_ocspreq_to_der): should call
-	  GetOCSPReq at first.
-
-Sat Jan 22 23:09:47 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/ssl.rb (accept): rescue SSLError. [druby-ja:110]
-
-Sat Jan 22 22:35:03 2005  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/unix.rb: fail if UNIXFileOwner is set. [druby-ja:111]
-
-Fri Jan 21 23:58:42 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/stringio/stringio.c (strio_set_pos): clear EOF flag.
-	  [ruby-talk:127511]
-
-Fri Jan 21 20:07:02 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/resolv.rb (Resolv::DNS::Config.resolv): don't raise ResolvError.
-	  reported by Sam Roberts.  [ruby-talk:127133]
-
-Fri Jan 21 16:58:10 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* dir.c (rb_push_glob): should work for NUL delimited patterns.
-
-Fri Jan 21 13:58:37 2005  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/imap.rb (u8tou16): fixed typo. fixed: [ruby-list:40546]
-	  (backported from CVS HEAD)
-
-Fri Jan 21 09:30:16 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* rubyio.h (rb_eof_error): should mark as NORETURN. (backported
-	  from CVS HEAD)
-
-Fri Jan 21 00:31:36 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/syck/rubyext.c (syck_parser_bufsize_set): avoid VC++ warning
-	  "local variable 'size' used without having been initialized".
-
-Thu Jan 20 19:03:24 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/extmk.rb (extmake): shouldn't set $extflags on mswin32.
-
-	* win32/Makefile.sub (LIBRUBY_SO): should use $DLDOBJS instead of
-	  $EXTOBJS.
-	  fixed: [ruby-core:04290] (backported from CVS HEAD)
-
-Thu Jan 20 11:42:02 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (rb_str_new4): should propagate taintedness.
-
-	* struct.c (rb_struct_set): use original method name, not callee
-	  name, to retrieve member slot.  [ruby-core:04268]
-
-	* time.c (time_strftime): protect from format modification from GC
-	  finalizers.
-
-Wed Jan 19 18:06:40 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* lib/ipaddr.rb (to_s, test_to_s): too many colons with some cases.
-	  (backported from CVS HEAD)
-
-Wed Jan 19 01:16:30 2005  Tanaka Akira  <akr@m17n.org>
-
-	* lib/resolv.rb (Resolv::DNS::Config.parse_resolv_conf): ignore
-	  domain and search directive without an argument.
-	  reported by Sam Roberts.  [ruby-talk:126781]
-
-Tue Jan 18 15:03:05 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/ssl.rb (WEBrick::Config::SSL): the default value
-	  of :SSLEnable is false.
-
-	* lib/webrick/server.rb (WEBrick::Daemon.start): prepared stdio
-	  don't allow changing its mode.
-
-	* lib/webrick/httpproxy.rb (WEBrick::HTTPProxyServer#proxy_service):
-	  should delete trailing LF from the result of pack("m*").
-
-	* lib/webrick/httpproxy.rb (WEBrick::HTTPProxyServer#proxy_connect):
-	  - should delete trailing LF from the result of pack("m*").
-	  - clear Request-Line not to send the response by HTTPServer#run.
-
-	* lib/webrick/httputils (WEBrick::HTTPUtils.parse_qvalues):
-	  refine regexp (and change the name of a local variable).
-
-	* lib/webrick/httputils.rb (WEBrick::HTTPUtils#escape_path): add
-	  new method to escape URI path component.
-
-	* lib/webrick/cgi.rb (WEBrick::CGI::Socket#request_line): should
-	  escape SCRIPT_NAME and PATH_INFO before being parsed as a URI.
-
-	* test/webrick/*, sample/webrick/httpproxy.rb: add new file.
-
-Mon Jan 17 23:33:46 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (aix): fix typo.  [ruby-talk:126401]
-
-Mon Jan 17 07:08:51 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/readline/readline.c: suppress warnings.
-
-	* lib/irb/extend-command.rb (IRB::ContextExtender.def_extend_command):
-	  ditto.
-
-	* lib/irb/ext/history.rb (IRB::Context::set_last_value): ditto.
-
-	* lib/irb/ext/history.rb (IRB::Context::eval_history): ditto.
-
-	* lib/irb/locale.rb (IRB::Locale::real_load): ditto.
-
-	* lib/irb/slex.rb (SLex::Node::create_subnode): remove garbage.
-
-Mon Jan 17 00:09:42 2005  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* lib/uri/common.rb (PORT): typo fix. fixed: [ruby-core:04256]
-
-Sat Jan 15 14:57:22 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby.c (proc_options): ignore trailing CRs at the end of short
-	  options as well as long options.  fixed: [ruby-core:04232]
-
-Sat Jan 15 13:35:16 2005  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb (RSS::VERSION): 0.1.2 -> 0.1.3.
-
-	* lib/rss/rss.rb: accept inheritance. [ruby-talk:126104]
-
-Thu Jan 13 04:48:53 2005  Tanaka Akira  <akr@m17n.org>
-
-	* io.c (io_fread): don't warn nonblocking behavior by default.
-
-Wed Jan 12 00:36:29 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* object.c (rb_class_superclass): superclass of singleton class also
-	  should be a singleton class.  fixed: [ruby-list:40519]
-
-Tue Jan 11 09:44:40 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* numeric.c (Init_Numeric): turn off floating point exceptions
-	  on bcc32. "1e300".to_f had crashed by overflow.
-
-Tue Jan 11 03:10:10 2005  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/fileutils.rb (copy_entry): could not copy symbolic link.
-	  [ruby-talk:125733]
-
-	* lib/fileutils.rb (copy_stream): use read/write instead of
-	  sysread/syswrite.
-
-Mon Jan 10 23:08:15 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* variable.c (rb_autoload): hide internal data from ruby level.
-	  fixed: [ruby-dev:25435], [ruby-list:40498]
-
-Mon Jan 10 01:22:55 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* gc.c (rb_data_object_alloc): klass may be NULL.
-	  [ruby-list:40498]
-
-Sun Jan  9 03:12:58 2005  Tanaka Akira  <akr@m17n.org>
-
-	* io.c (io_fread): warn nonblocking behavior.
-	  (io_readpartial): new method IO#readpartial.
-
-Sat Jan  8 04:38:47 2005  why the lucky stiff  <why@ruby-lang.org>
-
-	* lib/yaml.rb: Kernel#y requires an argument.
-
-Fri Jan  7 21:12:29 2005  TAMURA Takashi  <sheepman@tcn.zaq.ne.jp>
-
-	* random.c (rand_init): use ALLOC_N instead of ALLOCA_N
-	  [ruby-dev:25426]
-
-Fri Jan  7 18:03:35 2005  Tanaka Akira  <akr@m17n.org>
-
-	* gc.c (mark_locations_array): avoid core dump with -O3.
-	  [ruby-dev:25424]
-
-Thu Jan  6 20:31:07 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/zlib/zlib.c (zstream_end): should return value. (backported
-	  from CVS HEAD)
+	* ext/openssl/ossl_ocsp.c (ossl_ocspreq_verify, ossl_ocspbres_verify):
+	  Use ossl_clear_error() so that they don't print warnings to stderr and
+	  leak errors in the OpenSSL error queue. Also, check the return value
+	  of OCSP_*_verify() correctly. They can return -1 on verification
+	  failure.
 
-Thu Jan  6 19:55:13 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
+Wed Jun 15 19:52:23 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* win32/win32.c (rb_w32_close): didn't close socket handle.
-	  [ruby-dev:25414]
+	* ext/openssl/ossl_ocsp.c (ossl_ocspreq_sign, ossl_ocspbres_sign): Allow
+	  specifying hash algorithm used in signing. They are hard coded to use
+	  SHA-1.
+	  Based on a patch provided by Tim Shirley <tidoublemy@gmail.com>.
+	  [ruby-core:70915] [Feature #11552] [GH ruby/openssl#28]
 
-	* win32/win32.c (rb_w32_open_osfhandle): bcc32's _open_osfhandle
-	  never set EMFILE.
+	* test/openssl/test_ocsp.rb: Test sign-verify works.
 
-Thu Jan  6 17:14:31 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
+Wed Jun 15 01:46:16 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* random.c (random_seed): O_NONBLOCK isn't defined on some
-	  platforms. [ruby-dev:25417]
+	* numeric.c: [DOC] fix rdoc directive, and an example of negative
+	  value.  [ruby-core:76025] [Bug #12487]
 
-Thu Jan  6 13:45:35 2005  Tanaka Akira  <akr@m17n.org>
+Wed Jun 15 01:44:42 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/time.rb: recognize +00:00 and GMT as a localtime.
+	* tool/mkconfig.rb: provide Unicode Version information as
+	  RbConfig::CONFIG['UNICODE_VERSION'].
+	  [ruby-core:75845] [Feature #12460]
 
-Thu Jan  6 07:58:28 2005  Dave Thomas  <dave@pragprog.com>
+Wed Jun 15 00:01:18 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-	* lib/rdoc/usage.rb (RDoc::RDoc.usage_no_exit): Allow for colons
-	  in path names on DOS machines. (thanks to Johan Nilsson)
+	* test/ruby/enc/test_case_comprehensive.rb
+	  (TestComprehensiveCaseFold::read_data): use \A and \z instead of
+	  ^ and $ in regexp.
 
-Wed Jan  5 20:16:32 2005  Tanaka Akira  <akr@m17n.org>
+Tue Jun 14 23:43:00 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* random.c (limited_big_rand): didn't work if SIZEOF_BDIGITS == 2.
-	  [ruby-dev:25408]
+	* include/ruby/backward.h (rb_cFixnum, rb_cBignum): remove the
+	  backward compatibility macros, to fail incompatible extension
+	  libraries early.  [Bug #12427]
 
-	* random.c (random_seed): refined.
+Tue Jun 14 22:22:07 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Jan  5 12:49:39 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* strftime.c (rb_strftime_with_timespec): limit the result string
+	  size by the format length, to get rid of unlimited memory use.
 
-	* eval.c (rb_thread_initialize): Thread objects cannot be initialized
-	  again.  fixed: [ruby-core:04067]
+Tue Jun 14 22:11:11 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Wed Jan  5 10:48:16 2005  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* ext/openssl/ossl_ocsp.c (ossl_ocspcid_get_issuer_name_hash,
+	  ossl_ocspcid_get_issuer_key_hash, ossl_ocspcid_get_hash_algorithm):
+	  Add accessor methods OCSP::CertificateId#issuer_name_hash,
+	  #issuer_key_hash, #hash_algorithm.
+	  Based on a patch provided by Paul Kehrer <paul.l.kehrer@gmail.com>.
+	  [ruby-core:48062] [Feature #7181]
 
-	* dir.c (dir_s_mkdir): win32 special processing doesn't need any
-	  longer. (backported from CVS HEAD)
+	* test/openssl/test_ocsp.rb: Test these new methods.
 
-	* win32/win32.[ch] (rb_w32_mkdir): new function. POSIX.1 compatible
-	  interface. (backported from CVS HEAD)
+Tue Jun 14 22:07:25 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* win32/win32.[ch] (rb_w32_rmdir): new function. (backported from CVS
-	  HEAD)
+	* ext/date/date_strftime.c (date_strftime_with_tmx): reject too
+	  large precision to get rid of buffer overflow.
+	  reported by Guido Vranken <guido AT guidovranken.nl>.
 
-Wed Jan  5 02:30:11 2005  Tanaka Akira  <akr@m17n.org>
+Tue Jun 14 21:40:42 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* random.c (init_by_array): imported from mt19937ar-cok.tgz.
-	  (genrand_int32): ditto.
-	  (genrand_real): replaced with genrand_res53 in mt19937ar-cok.
-	  (rand_init): support bignum for longer seed.
-	  (random_seed): generate longer seed.
-	  (make_mask): new function.
-	  (limited_rand): ditto.
-	  (limited_big_rand): ditto.
-	  (rb_f_rand): call limited_rand and limited_big_rand.
-	  [ruby-dev:25403]
+	* ext/openssl/ossl_ocsp.c (ossl_ocspbres_to_der, ossl_ocspcid_to_der):
+	  Implement #to_der methods for OCSP::BasicResponse and
+	  OCSP::CertificateId.
 
-Tue Jan  4 23:25:29 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	  (ossl_ocspreq_initialize, ossl_ocspres_initialize): Use GetOCSP*()
+	  instead of raw DATA_PTR().
 
-	* bignum.c (rb_big_rand): should return positive random number.
-	  [ruby-dev:25401]
+	  (ossl_ocspbres_initialize, ossl_ocspcid_initialize): Allow
+	  initializing from DER string.
 
-Tue Jan  4 11:15:29 2005  TAMURA Takashi  <sheepman@tcn.zaq.ne.jp>
+	  (Init_ossl_ocsp): Define new #to_der methods.
 
-	* bignum.c (rb_big_rand): do not use rb_big_modulo to generate
-	  random bignums.  [ruby-dev:25396]
+	* test/openssl/test_ocsp.rb: Test these changes. Also add missing tests
+	  for OCSP::{Response,Request}#to_der.
 
-Mon Jan  3 14:01:54 2005  Tanaka Akira  <akr@m17n.org>
+Tue Jun 14 21:35:00 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* random.c (random_seed): don't use /dev/urandom if it is not
-	  character device.
+	* ext/openssl/openssl_missing.h (DH_set0_pqg, RSA_set0_key):
+	  DH_set0_pqg() allows 'q' to be NULL. Fix a typo in RSA_set0_key().
+	  Fixes r55285.  [ruby-core:75225] [Feature #12324]
 
-Mon Jan  3 11:37:42 2005  Tanaka Akira  <akr@m17n.org>
+Mon Jun 14 10:19:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* random.c (random_seed): use /dev/urandom if available.
-	  [ruby-dev:25392]
+	* NEWS: describe Integer#digits.
 
-Mon Jan  3 07:46:42 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Mon Jun 13 21:09:40 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/webrick/httpauth/htpasswd.rb (WEBrick::Htpasswd#reload):
-	  raise NotImplementedError if password is encrypted by digest
-	  algorithms. This patch is contributed by sheepman. [ruby-list:40467]
+	* thread.c (debug_deadlock_check): show thread lock dependency and
+	  backtrace [Feature #8214] [ruby-dev:47217]
 
-	* lib/webrick/httpauth/digestauth.rb
-	  (WEBrick::HTTPAuth::DigestAuth#_authenticate): fix digest calculation.
-	  This patch is contributed by sheepman. [ruby-list:40482]
+	* thread.c (thread_status_name): show "sleep_forever" instead of
+	  "sleep" if called from inspect.
 
-	* lib/webrick/{httpauth.rb,httpauth/basicauth.rb,httpproxy.rb}: use
-	  pack/unpack-template char "m" instead of lib/base64.rb to do base64
-	  encoding/decoding. fixed: [ruby-dev:25336]
+Mon Jun 13 20:50:07 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/webrick/test_httpauth.rb: new file.
+	* parse.y (reg_named_capture_assign_iter): remove named capture
+	  conflict warnings.  it is just annoying rather than useful.
+	  [ruby-core:75416] [Bug #12359]
 
-Sat Jan  1 04:20:23 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Mon Jun 13 20:04:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* ext/openssl/ossl_ns_spki.c (ossl_spki_set_challenge): should call
-	  StringValue before GetSPKI. fixed: [ruby-dev:25359].
+	* numeric.c (rb_int_digits, rb_fix_digits, rb_int_digits_bigbase):
+	  Add Integer#digits to extract columns in place-value notation
+	  [Feature #12447] [ruby-core:75799]
 
-Sat Jan  1 01:13:28 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* test/ruby/test_integer.rb: Add tests for the above change.
 
-	* variable.c (rb_autoload): [ruby-dev:25373]
+	* test/ruby/test_bignum.rb: ditto.
 
-Fri Dec 31 14:10:43 2004  Dave Thomas  <dave@pragprog.com>
+Mon Jun 13 20:34:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rdoc/ri/ri_formatter.rb (RI::TextFormatter::display_flow_item): Fix problem
-	  if heading contains formatting.
+	* include/ruby/ruby.h (RUBY_INTEGER_UNIFICATION): macro to tell if
+	  Integer is integrated.  [ruby-core:75718][Bug #12427]
 
-Thu Dec 30 00:41:42 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* include/ruby/backward.h, internal.h (rb_cFixnum, rb_cBignum):
+	  fallback to rb_cInteger.
 
-	* eval.c (svalue_to_avalue): [ruby-dev:25366]
+	* bignum.c, numeric.c, ext/json/generator/generator.{c,h}: use the
+	  macro.
 
-	* string.c (rb_str_justify): [ruby-dev:25367]
+Mon Jun 13 16:58:53 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Wed Dec 29 11:07:07 2004  Dave Thomas  <dave@pragprog.com>
+	* test/ruby/enc/test_case_comprehensive.rb: Add tests for full Unicode
+	  swapcase.
 
-	* lib/rdoc/generators/template/html/kilmer.rb: Update to use new
-	  sections.
+Sun Jun 12 14:48:00 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Tue Dec 28 22:31:46 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/enc/test_case_comprehensive.rb: Add tests for ASCII-only
+	  swapcase; store calculated values in hashes.
 
-	* string.c (rb_str_justify): create buffer string after argument type
-	  conversion.  fixed: [ruby-dev:25341]
+Sun Jun 12 14:05:45 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Tue Dec 28 15:41:48 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/openssl/ossl_cipher.c (ossl_cipher_get_auth_tag,
+	  ossl_cipher_set_auth_tag): Check if the cipher flags retrieved by
+	  EVP_CIPHER_CTX_flags() includes EVP_CIPH_FLAG_AEAD_CIPHER to see if
+	  the cipher supports AEAD. AES-GCM was the only supported in OpenSSL
+	  1.0.1.
 
-	* ext/nkf/nkf-utf8/nkf.c (reinit): should initialize all static
-	  variables.  fixed: [ruby-list:40445]
+	  (Init_ossl_cipher): Fix doc; OpenSSL::Cipher::AES.new(128, :GCM) can't
+	  work.
 
-Tue Dec 28 15:25:20 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/openssl/openssl_missing.h: Define EVP_CTRL_AEAD_{GET,SET}_TAG if
+	  missing. They are added in OpenSSL 1.1.0, and have the same value as
+	  EVP_CTRL_GCM_{GET,SET}_TAG and EVP_CTRL_CCM_{GET,SET}_TAG.
 
-	* ext/nkf/lib/kconv.rb (Kconv::RegexpEucjp): second byte is up to
-	  0xfe.
+Sun Jun 12 13:47:42 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* ext/nkf/lib/kconv.rb (Kconv#kconv): should handle UTF8 and UTF16
-	  properly.
+	* test/openssl/test_engine.rb (test_openssl_engine_builtin,
+	  test_openssl_engine_by_id_string): Skip test if 'openssl' engine is
+	  already loaded. And test the number increased by Engine.load{_by_id,},
+	  not the total count of loaded engines. Previously, we called
+	  OpenSSL::Engine.cleanup every time running a test case, but we no
+	  longer can do it.
+	  [ruby-core:75225] [Feature #12324]
 
-Tue Dec 28 13:35:20 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Jun 12 09:24:34 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/zlib/zlib.c (rb_deflate_s_deflate, rb_inflate_s_inflate): ensure
-	  freeing internal zstreams.  fixed: [ruby-dev:25309]
+	* file.c (append_fspath): normalize directory name to be appended
+	  on OS X.  [ruby-core:75957] [Ruby trunk Bug#12483]
+	  https://github.com/rails/rails/issues/25303#issuecomment-224834804
 
-	* ext/zlib/zlib.c (rb_deflate_init_copy): replace rb_deflate_clone.
+Sat Jun 11 23:07:32 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Tue Dec 28 12:26:45 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* lib/forwardable.rb (_delegator_method): get rid of a warning which
+	  causes test failures introduced at r55376.
 
-	* win32/Makefile.sub, win32/setup.mak (RDOCTARGET, install,
-	  install-nodoc, install-doc): rdoc support for mswin32.
+Sat Jun 11 18:37:58 2016  Marcus Stollsteimer  <sto.mar@web.de>
 
-	* win32/configure.bat (--enable-install-doc, --disable-install-doc):
-	  ditto.
+	* ext/json/lib/*.rb: Removed some comments. Because these are unnecessary
+	  class description. [ci skip][Bug #12255][ruby-core:74835]
 
-Mon Dec 27 20:02:14 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+Sat Jun 11 15:19:38 2016  takiy33  <takiy33@users.noreply.github.com>
 
-	* ext/tcltklib/tcltklib.c: fix SEGV bug when deleting Tk interp
+	* lib/net/smtp.rb: [DOC] Remove dead link on documentation for
+	  Japanese of SMTP.  [Fix GH-1380]
 
-	* ext/tk/lib/multi-tk.rb: ditto
+Sat Jun 11 15:02:45 2016  Grant Hutchins  <github@nertzy.com>
 
-Mon Dec 27 16:55:17 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* string.c (rb_str_oct): [DOC] fix typo, hornored -> honored.
+	  [Fix GH-1379]
 
-	* ext/openssl/ossl_x509name.c (Init_ossl_x509name): should use
-	  rb_hash_new to get exactly a Hash. fix [ruby-dev:25325].
+Sat Jun 11 14:04:19 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Dec 27 16:29:56 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* ext/objspace/objspace_dump.c: generate valid JSON for dump_all.
 
-	* string.c (rb_str_justify): [ruby-dev:25341]
+Sat Jun 11 13:52:33 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Dec 27 15:47:48 2004  Minero Aoki  <aamine@loveruby.net>
+	* lib/forwardable.rb (_delegator_method): remove __send__ call if
+	  possible, so that more optimizations will be enabled.
 
-	* test/fileutils/fileasserts.rb: sync with HEAD.
+Sat Jun 11 11:24:36 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/fileutils/test_fileutils.rb: ditto.
+	* enc/iso_8859.h (SHARP_s): name frequently used codepoint.
 
-	* test/fileutils/test_nowrite.rb: ditto.
+Sat Jun 11 09:58:45 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Mon Dec 27 15:21:07 2004  Minero Aoki  <aamine@loveruby.net>
+	* enc/iso_8859_1.c: Revert to older version of code.
 
-	* lib/fileutils.rb (mv): should raise error when moving a
-	  directory to the (empty) directory. [ruby-talk:124368]
-	  (backport from HEAD 1.48)
+Sat Jun 11 09:46:17 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* lib/fileutils.rb (mv): wrongly did not overwrite file on Win32
-	  platforms. (backport from HEAD 1.48)
+	* enc/iso_8859_1.c: Implement non-ASCII case mapping.
 
-Sat Dec 25 11:11:48 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* test/ruby/enc/test_case_comprehensive.rb: Tests for above.
 
-	* stable version 1.8.2 released.
+	* string.c: Add iso-8859-1 to supported encodings.
 
-Sat Dec 25 04:23:49 2004  Minero Aoki  <aamine@loveruby.net>
+Sat Jun 11 09:31:28 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/fileutils.rb (mkdir, mkdir_p): should ensure directory
-	  permission. (backportted from HEAD, 1.47)
+	* lib/forwardable.rb (_delegator_method): leave the backtrace
+	  untouched during accessor.  forwardable.rb does not appear in
+	  the backtrace during delegated method because of tail-call
+	  optimization.
 
-	* lib/fileutils.rb (traverse, remove_dir): untaint trasted
-	  objects. (backportted from HEAD, 1.46)
+Sat Jun 11 01:38:31 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-Sat Dec 25 01:28:23 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* include/ruby/defines.h (GCC_VERSION_SINCE): Fix logic error by
+	  adding parentheses. Fix failures of TestMkmf::TestConvertible
+	  with GCC 3.4.3 on Solaris 10. [Bug #12479] [ruby-dev:49660]
 
-	* io.c: cancel io_reopen() change on Dec. 24th.
+Fri Jun 10 21:54:24 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* dln.c: use <dlfcn.h> for NetBSD.  [ruby-dev:25313]
+	* lib/forwardable.rb (Forwardable._delegator_method): extract
+	  method generator and deal with non-module objects.
+	  [ruby-dev:49656] [Bug #12478]
 
-	* io.c (rb_f_select): IO list could be altered.  [ruby-dev:25312]
+Fri Jun 10 17:35:11 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Fri Dec 24 23:51:48 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
+	* string.c: Special-case :ascii option in rb_str_capitalize_bang and
+	  rb_str_swapcase_bang.
 
-	* bcc32/Makefile.sub: bcc32 should use RTL dll (backport from HEAD)
-	  [ruby-dev:25306]
+Fri Jun 10 17:12:24 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* win32/win32.[ch]: ditto.
+	* string.c: Special-case :ascii option in rb_str_upcase_bang (retry).
 
-Fri Dec 24 23:27:18 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+Fri Jun 10 14:48:36 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/tk/lib/tk/image.rb: TkPhotoImage#cget bug fix
+	* hash.c (get_env_cstr): ensure NUL-terminated.
+	  [ruby-dev:49655] [Bug #12475]
 
-Fri Dec 24 18:39:25 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
+	* string.c (rb_str_fill_terminator): return the pointer to the
+	  NUL-terminated content.
 
-	* win32/win32.[ch]: failed to compile on bcc32 (and probably wince)
-	  [ruby-dev:25306]
+Thu Jun  9 21:42:00 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Fri Dec 24 02:52:52 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/openssl/ossl_asn1.c (asn1integer_to_num): Use
+	  ASN1_ENUMERATED_to_BN() to convert an ASN1_ENUMERATED to a BN.
+	  Starting from OpenSSL 1.1.0, ASN1_INTEGER_to_BN() rejects
+	  non-ASN1_INTEGER objects. The format of INTEGER and ENUMERATED are
+	  almost identical so they behaved in the same way in OpenSSL <= 1.0.2.
+	  [ruby-core:75225] [Feature #12324]
 
-	* io.c (io_reopen, rb_io_reopen): prohibit to change access mode for
-	  special IO ports.  [ruby-dev:25225]
+	* test/openssl/test_asn1.rb (test_decode_enumerated): Test that it
+	  works.
 
-Fri Dec 24 02:22:53 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Jun  9 21:10:04 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-	* ext/syck/rubyext.c (rb_syck_io_str_read): [ruby-core:03973]
+	* tool/ifchange: fix timestamp error when target without
+	  directory.
 
-	* ext/syck/rubyext.c (syck_loader_transfer): check type conversion.
+Thu Jun  9 19:46:22 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* ext/syck/rubyext.c (syck_parser_assign_io, rb_new_syck_node): duck
-	  typing.
+	* ext/openssl/ossl_ssl.c: Add define guards for OPENSSL_NO_EC.
+	  SSL_CTX_set_ecdh_auto() is defined even when ECDH is disabled in
+	  OpenSSL's configuration. This fixes r55214.
 
-	* ext/syck/rubyext.c (syck_parser_s_alloc, syck_parser_initialize):
-	  allocation framework.
+	* test/openssl/test_pair.rb (test_ecdh_curves): Skip if the OpenSSL does
+	  not support ECDH.
 
-	* ext/syck/rubyext.c (syck_emitter_s_alloc, syck_emitter_initialize):
-	  ditto.
+	* test/openssl/utils.rb (start_server): Ignore error in
+	  SSLContext#ecdh_curves=.
 
-Fri Dec 24 01:21:00 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+Thu Jun  9 18:12:42 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/tk/lib/tkextlib/blt.rb: add BLT extension support
+	* Makefile.in (un-runnable): fail with proper error message.
+	  [ruby-core:75905] [Bug #12472]
 
-	* ext/tk/lib/tkextlib/blt/*.rb: ditto
+Thu Jun  9 15:32:17 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/tk/lib/tkextlib/blt/tile/*.rb: ditto
+	* common.mk (RBCONFIG): use ifchange tool to see if the content is
+	  changed and update the timestamp file.
 
-Thu Dec 23 23:36:28 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* tool/mkconfig.rb: remove ifchange features.
 
-	* process.c (proc_setgroups): check if the argument lenght is
-	  modified.  fixed: [ruby-dev:25285]
+	* tool/ifchange: make target directory if it does not exist with
+	  its parent directories.
 
-Thu Dec 23 13:13:33 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* win32/ifchange.bat: drop support for command.com used on old
+	  systems.
 
-	* ext/tcltklib/tcltklib.c: define TclTkLib::COMPILE_INFO and
-	  RELEASE_DATE
+Thu Jun  9 15:03:35 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* ext/tcltklib/extconf.rb: ditto
+	* ext/openssl/extconf.rb: Check for CRYPTO_malloc() and SSL_new().
+	  OpenSSL_add_all_digests() and SSL_library_init() are deprecated and
+	  converted to macros in OpenSSL 1.1.0.
+	  [ruby-core:75225] [Feature #12324]
 
-	* ext/tk/tkutil.c: define TkUtil::RELEASE_DATE
+Wed Jun  8 23:09:51 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-	* ext/tk/lib/tk.rb: define Tk::RELEASE_DATE
+	* string.c (rb_str_ascii_casemap): fix compile error.
 
-Thu Dec 23 09:38:31 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jun  8 22:22:24 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* io.c (io_reopen): restore exact mode.  fixed: [ruby-core:04003]
+	* string.c: Revert previous commit (possibility of endless loop).
 
-Thu Dec 23 00:16:32 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jun  8 21:57:41 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* configure.in (bsdi): use $(CC) for LDSHARED.  fixed [ruby-dev:25270]
+	* string.c: Special-case :ascii option in rb_str_upcase_bang.
 
-Wed Dec 22 11:14:55 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jun  8 21:28:36 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* io.c (rb_io_mode_modenum): replace O_ACCMODE with O_RDWR.
-	  fixed: [ruby-dev:25273]
+	* string.c: New static function rb_str_ascii_casemap; special-casing
+	  :ascii option in rb_str_upcase_bang and rb_str_downcase_bang.
 
-Wed Dec 22 08:34:32 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* regenc.c: Fix a bug (wrong use of unnecessary slack at end of string).
 
-	* ext/dl/sym.c (rb_dlsym_initialize): extract internal pointers after
-	  all argument conversion.  fixed: [ruby-dev:25271]
+	* regenc.h -> include/ruby/oniguruma.h: Move declaration of
+	  onigenc_ascii_only_case_map so that it is visible in string.c.
 
-Wed Dec 22 00:08:01 2004  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Wed Jun  8 20:33:44 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* lib/soap/*, test/soap/*, sample/soap/authheader/*: eval cleanup.
+	* include/ruby/intern.h: Remove excess semicolons in PUREFUNC().
+	  Fix failure of TestMkmf::TestConvertible on Solaris with
+	  Oracle Solaris Studio 12. [ruby-dev:49651] [Bug #12470]
+	* internal.h: ditto.
 
-Tue Dec 21 22:07:33 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Wed Jun  8 16:03:09 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* ext/openssl/ossl_asn1.c (ossl_asn1_traverse, ossl_asn1_decode,
-	  ossl_asn1_decode_all): temporary value should be marked volatile.
+	* lib/net/smtp.rb (getok, get_response): raise an ArgumentError when
+	  CR or LF is included in a line, because they are not allowed in
+	  RFC5321.  Thanks, Jeremy Daer.
 
-Tue Dec 21 14:40:02 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Tue Jun  7 21:27:25 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* ext/openssl/ossl_asn1.c (ossl_asn1_traverse, ossl_asn1_decode,
-	  ossl_asn1_decode_all): use rb_str_new4 to avoid SEGV.
-	  fix [ruby-dev:25261]
+	* test/rubygems/*_{cert,cert_32}.pem: Regenerate test certificates for
+	  OpenSSL 1.1.0. This is already in upstream.
+	  https://github.com/rubygems/rubygems/commit/9be5c53939440a61c4bba73cfffbeb5cfadf72be
+	  [ruby-core:75225] [Feature #12324]
 
-	* test/openssl/test_asn1.rb: add tests for OpenSSL::ASN1.
+Tue Jun  7 21:27:17 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Tue Dec 21 12:22:40 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/open-uri/test_ssl.rb: Regenerate test certificates. The test CA
+	  certificate was incorrectly generated. A CA certificate must have the
+	  basic constraints extension with cA bit set to TRUE. OpenSSL <= 1.0.2
+	  allowed the error when the certificate is in the trusted store but
+	  OpenSSL 1.1.0 no longer does.
+	  [ruby-core:75225] [Feature #12324]
 
-	* io.c (io_reopen): keep duplex pipe in correct mode for exception
-	  safeness.  fixed: [ruby-dev:25152]
+Tue Jun  7 21:20:38 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Tue Dec 21 12:10:04 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* test/openssl/test_x509name.rb: Don't register OID for 'emailAddress'
+	  and 'serialNumber'. A recent change in OpenSSL made OBJ_create()
+	  reject an already existing OID. They were needed to run tests with
+	  OpenSSL 0.9.6 which is now unsupported.
+	  https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=52832e470f5fe8c222249ae5b539aeb3c74cdb25
+	  [ruby-core:75225] [Feature #12324]
 
-	* ext/tk/lib/tk/grid.rb: rescue bug of 'grid configure' on Tcl/Tk8.3-
+	* test/openssl/test_ssl_session.rb (test_server_session): Duplicate
+	  SSL::Session before re-adding to the session store. OpenSSL 1.1.0
+	  starts rejecting SSL_SESSION once removed by SSL_CTX_remove_session().
+	  https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=7c2d4fee2547650102cd16d23f8125b76112ae75
 
-Tue Dec 21 00:53:01 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* test/openssl/test_pkey_ec.rb (setup): Remove X25519 from @keys. X25519
+	  is new in OpenSSL 1.1.0 but this is for key agreement and not for
+	  signing.
 
-	* ext/openssl/ossl_asn1.c (ossl_asn1_traverse): [ruby-dev:25261]
+	* test/openssl/test_pair.rb, test/openssl/test_ssl.rb,
+	  test/openssl/utils.rb: Set security level to 0 when using aNULL cipher
+	  suites.
 
-	* ext/openssl/ossl_asn1.c (ossl_asn1_decode): ditto.
+	* test/openssl/utils.rb: Use 1024 bits DSA key for client certificates.
 
-	* ext/openssl/ossl_asn1.c (ossl_asn1_decode_all): ditto.
+	* test/openssl/test_engine.rb: Run each test in separate process.
+	  We can no longer cleanup engines explicitly as ENGINE_cleanup() was
+	  removed.
+	  https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=6d4fb1d59e61aacefa25edc4fe5acfe1ac93f743
 
-Mon Dec 20 23:22:26 2004  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* ext/openssl/ossl_engine.c (ossl_engine_s_cleanup): Add a note to the
+	  RDoc for Engine.cleanup.
 
-	* added files:
-	  * lib/soap/mapping/wsdl*.rb
-	  * lib/wsdl/soap/element.rb
-	  * lib/wsdl/xmlSchema/simpleContent.rb
+	* ext/openssl/lib/openssl/digest.rb: Don't define constants for DSS,
+	  DSS1 and SHA(-0) when using with OpenSSL 1.1.0. They are removed.
 
-	* modified files:
-	  * lib/soap/*
-	  * lib/wsdl/*
-	  * lib/xsd/*
-	  * test/soap/*
-	  * test/wsdl/*
-	  * test/xsd/*
-	  * sample/soap/*
-	  * sample/sdl/*
+	* test/openssl/test_digest.rb, test/openssl/test_pkey_dsa.rb,
+	  test/openssl/test_pkey_dsa.rb, test/openssl/test_ssl.rb,
+	  test/openssl/test_x509cert.rb, test/openssl/test_x509req.rb: Don't
+	  test unsupported hash functions.
 
-	* summary
-	  * imported from the soap4r repository.  Version: 1.5.3-ruby1.8.2
+Tue Jun  7 17:49:52 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	  * added several XSD basetype support: nonPositiveInteger,
-	    negativeInteger, nonNegativeInteger, unsignedLong, unsignedInt,
-	    unsignedShort, unsignedByte, positiveInteger
+	* test/ruby/enc/test_case_comprehensive: Change test for encodings
+	  without any non-ASCII case conversions from ASCII-only test
+	  to full test.
 
-	  * HTTP client connection/send/receive timeout support.
+Tue Jun  7 17:18:39 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	  * HTTP client/server gzipped content encoding support.
+	* string.c (rb_str_upcase_bang, rb_str_capitalize_bang,
+	  rb_str_swapcase_bang): Switch to use primitive.
 
-	  * improved WSDL schema definition support; still is far from
-	    complete, but is making step by step improovement.
+Tue Jun  7 16:44:16 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Mon Dec 20 22:56:39 2004  Tanaka Akira  <akr@m17n.org>
+	* string.c (rb_str_downcase_bang): Switch to use primitive except if
+	  conversion can be done ASCII-only.
 
-	* gc.c (stack_end_address): gcc noinline attribute is available since
-	  gcc-3.1.
+Tue Jun  7 16:13:36 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Mon Dec 20 14:07:02 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* test/ruby/enc/test_case_comprehensive: Add regression tests for
+	  current ASCII-only case conversion.
 
-	* ext/tk/lib/multi-tk.rb: supports new features of Tcl/Tk8.5a2
+Tue Jun  7 15:28:38 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/tk/lib/tk/clock.rb: ditto
+	* test/ruby/enc/test_case_comprehensive: Fix method name
+	  (generate_casefold_tests -> generate_case_mapping_tests).
 
-	* ext/tk/lib/tk/text.rb: ditto
+Tue Jun  7 15:05:13 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/tk/lib/tk/panedwindow.rb: ditto
+	* regenc.h/c: Rename onigenc_not_support_case_map to
+	  onigenc_ascii_only_case_map.
 
-Mon Dec 20 12:47:13 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* regenc.h: Add definition of onigenc_single_byte_ascii_only_case_map.
 
-	* ext/openssl/lib/net/https.rb,protocols.rb,telnets.rb: delete
-	  doc and code about SSLContext#{key_file,cert_file}.
-	  fixed: [ruby-dev:25243]
+	* enc/iso_8859_X.c, windows_125X.c, ascii.c, us-ascii.c, koi8_x.c:
+	  Replace onigenc_not_support_case_map by
+	  onigenc_single_byte_ascii_only_case_map.
 
-Mon Dec 20 12:42:17 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* enc/big5.c, cp949.c, emacs_mule.c, euc_X.c, gbX.c, shift_jis.c,
+	  windows_31j.c: Replace onigenc_not_support_case_map by
+	  onigenc_ascii_only_case_map.
 
-	* io.c (io_fwrite): workaround for MSVCRT's bug.
-	  fixed: [ruby-core:03982]
+Tue Jun  7 14:57:09 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Mon Dec 20 11:21:04 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/openssl/extconf.rb: Check for SSL_CTX_set_min_proto_version()
+	  macro added in OpenSSL 1.1.0. Version-specific methods, such as
+	  TLSv1_method(), are deprecated in OpenSSL 1.1.0. We need to use
+	  version-flexible methods (TLS_*method() or SSLv23_*method()) and
+	  disable other protocol versions as necessary.
+	  [ruby-core:75225] [Feature #12324]
 
-	* io.c (rb_io_eof): check if closed before clearerr().
-	  fixed: [ruby-dev:25251]
+	* ext/openssl/ossl_ssl.c: Use SSL_CTX_set_{min,max}_proto_version() to
+	  fix the protocol version.
 
-Mon Dec 20 03:30:40 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Jun  7 12:55:34 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* lib/cgi/session.rb (CGI::Session#initialize): empty session id was
-	  used if request had no session key.  fixed: [ruby-core:03981]
+	* regenc.c (onigenc_not_support_case_map): Move to end of file;
+	  (onigenc_single_byte_ascii_only_case_map): Add new function.
 
-Mon Dec 20 01:51:01 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Tue Jun  7 09:26:37 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* struct.c (make_struct): [ruby-dev:25249]
+	* regenc.c (onigenc_not_support_case_map): Rewrite to work correctly
+	  in ASCII range.
 
-Mon Dec 20 00:28:20 2004  Kouhei Sutou  <kou@cozmixng.org>
+Mon Jun  6 23:00:00 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-	* lib/rexml/encodings/SHIFT-JIS.rb: backported from CVS HEAD.
+	* appveyor.yml: Update libressl version to 2.3.5.
 
-	* lib/rexml/encodings/SHIFT_JIS.rb: ditto.
+Mon Jun  6 18:37:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Dec 19 17:19:48 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* vm_insnhelper.c (vm_throw_start): check if the iseq is symbol
+	  proc, class definition should not be a symbol proc.
+	  [ruby-core:75856] [Bug #12462]
 
-	* ext/openssl/ossl_x509store.c
-	  (ossl_x509store_set_time): add OpenSSL::X509::Store#time=.
-	  (ossl_x509stctx_set_time): add OpenSSL::X509::StoreContext#time=.
+Mon Jun  6 18:36:34 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* test/openssl/ossl_x509store.rb: test certificate validity times.
+	* string.c: Added UTF-16BE/LE and UTF-32BE/LE to supported encodings
+	  for Unicode case mapping.
 
-	* ext/openssl/ossl_x509name.c (ossl_x509name_to_s): add optional
-	  second argument to specify the output format (see also
-	  X509_NAME_print_ex).
+	* test/ruby/enc/test_case_comprehensive.rb: Tests for above
+	  functionality; fixed an encoding issue in assertion error message.
 
-	* ext/openssl/ossl_x509name.c (ossl_x509name_init): new constants:
-	  OpenSSL::X509::Name::COMPAT, OpenSSL::X509::Name::RFC2253,
-	  OpenSSL::X509::ONELINE, OpenSSL::X509::MULTILINE.
+Mon Jun  6 17:29:35 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/openssl/lib/openssl/x509.rb (OpenSSL::X509::Name::RFC2253DN):
-	  new module to provide the parse for RFC2253 DN format.
+	* test/ruby/enc/test_case_comprehensive.rb: Speed up testing for small
+	  encodings by preselecting codepoints.
 
-	* ext/openssl/lib/openssl/x509.rb (OpenSSL::X509::Name.parse_rfc2253):
-	  new method to parse RFC2253 DN format.
+Mon Jun  6 17:10:50 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* test/openssl/ossl_x509name.rb: add tests about RFC2253 DN.
+	* ext/openssl/ossl_cipher.c (ossl_cipher_free): Use EVP_CIPHER_CTX_free()
+	  to free EVP_CIPHER_CTX allocated by EVP_CIPHER_CTX_new().
+	  [ruby-core:75225] [Feature #12324]
 
-	* text/openssl/ssl_server.rb: try to listen ports from 20443 to 20542
-	  while EADDRINUSE is raised.
+Mon Jun  6 13:37:08 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* all changes in this entry are backport from 1.9.
+	* string.c Change rb_str_casemap to use encoding primitive
+	  case_map instead of directly calling onigenc_unicode_case_map.
 
-Sun Dec 19 17:24:59 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Jun  6 13:16:46 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* configure.in (enable_rpath): use rpath flag to embed the library
-	  path into extensions on ELF environment.  [ruby-dev:25035]
+	* test/ruby/enc/test_case_mapping.rb:
+	  Remove :lithuanian guard for Unicode case mapping.
 
-Sun Dec 19 11:01:25 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Jun  6 10:39:56 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* lib/test/unit.rb: use standalone runner for -e.
+	* ext/openssl/openssl_missing.h: Include ruby/config.h. r55285 added
+	  some inline functions but VC does not recognize 'inline' keyword.
 
-	* lib/test/unit/autorunner.rb (Test::Unit::AutoRunner#options): accept
-	  multiple -p and -x options.
+Mon Jun  6 09:25:34 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/test/unit/collector/dir.rb (Test::Unit::Collector::Dir#recursive_collect):
-	  ditto.
+	* thread.c (thread_start_func_2): report raised exception if
+	  report_on_exception flag is set.  [Feature #6647]
 
-Sat Dec 18 16:36:23 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Jun  6 01:36:24 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* ext/zlib/zlib.c (rb_deflate_s_deflate, rb_inflate_s_inflate):
-	  disallow interrupt by type conversion.  fixed: [ruby-dev:25226]
+	* ext/openssl/extconf.rb: Check existence of SSL_is_server(). This
+	  function was introduced in OpenSSL 1.0.2.
+	  [ruby-core:75225] [Feature #12324]
 
-Sat Dec 18 15:16:41 2004  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* ext/openssl/openssl_missing.h: Implement SSL_is_server() if missing.
 
-	* lib/webrick/httpauth.rb,
-	  lib/webrick/httpauth/{basicauth.rb,digestauth.rb}: use
-	  pack/unpack-template char "m" instead of lib/base64.rb to do base64
-	  encoding/decoding.
+	* ext/openssl/ossl_ssl.c (ssl_info_cb): Use SSL_is_server() to see if
+	  the SSL is server. The state machine in OpenSSL was rewritten and
+	  SSL_get_state() no longer returns SSL_ST_ACCEPT.
 
-Sat Dec 18 10:51:01 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	  (ossl_ssl_cipher_to_ary, ossl_sslctx_session_get_cb): Add some
+	  `const`s to suppress warning.
 
-	* dir.c (dir_open_dir): new function.  [ruby-dev:25242]
+Mon Jun  6 01:18:10 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Fri Dec 17 18:07:01 2004  Shugo Maeda  <shugo@ruby-lang.org>
+	* ext/openssl/ossl_asn1.c (decode_bool): Do the same thing as
+	  d2i_ASN1_BOOLEAN() does by ourselves. This function is removed in
+	  OpenSSL 1.1.0.
+	  [ruby-core:75225] [Feature #12324]
 
-	* test/readline/test_readline.rb: fix for BSD. Thanks, GOTOU Yuuzou.
-	  fixed: [ruby-dev:25218]
+Mon Jun  6 00:34:16 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Fri Dec 17 16:28:12 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* ext/openssl/extconf.rb: Check existence of accessor functions that
+	  don't exist in OpenSSL 0.9.8. OpenSSL 1.1.0 made most of its
+	  structures opaque and requires use of these accessor functions.
+	  [ruby-core:75225] [Feature #12324]
 
-	* ext/tk/lib/tk.rb: fix bug on setting up system encoding
+	* ext/openssl/openssl_missing.[ch]: Implement them if missing.
 
-	* ext/tk/lib/tk/event.rb: fix error on require process
+	* ext/openssl/ossl*.c: Use these accessor functions.
 
-	* ext/tk/lib/tk/font.rb: fix abnormal termination error on Windows
+	* test/openssl/test_hmac.rb: Add missing test for HMAC#reset.
 
-	* ext/tk/lib/tk/virtevent.rb: TkVirtualEvent::PreDefVirtEvent.new()
-	  accepts event-sequence arguments
+Mon Jun  6 00:00:13 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* ext/tk/lib/tk/text.rb: fail to dump embedded images
+	* ext/openssl/openssl_missing.[ch]: Implement EVP_PKEY_get0_*() and
+	  {RSA,DSA,EC_KEY,DH}_get0_*() functions.
+	  OpenSSL 1.1.0 makes EVP_PKEY/RSA/DSA/DH opaque. We used to provide
+	  setter methods for each parameter of each PKey type, for example
+	  PKey::RSA#e=, but this is no longer possible because the new API
+	  RSA_set0_key() requires the 'n' at the same time. This commit adds
+	  deprecation warning to them and adds PKey::*#set_* methods as direct
+	  wrapper for those new APIs. For example, 'rsa.e = 3' now needs to be
+	  rewritten as 'rsa.set_key(rsa.n, 3, rsa.d)'.
+	  [ruby-core:75225] [Feature #12324]
 
-	* ext/tk/lib/tk/text.rb: tag_nextrange and tag_prevrange returns wrong
-	  types of values
+	* ext/openssl/ossl_pkey*.[ch]: Use the new accessor functions. Implement
+	  RSA#set_{key,factors,crt_params}, DSA#set_{key,pqg}, DH#set_{key,pqg}.
+	  Emit a warning with rb_warning() when old setter methods are used.
 
-	* ext/tk/lib/tk/texttag.rb: nextrange and prevrange returns wrong
-	  types of values
+	* test/drb/ut_array_drbssl.rb, test/drb/ut_drb_drbssl.rb,
+	  test/rubygems/test_gem_remote_fetcher.rb: Don't set a priv_key for DH
+	  object that are used in tmp_dh_callback. Generating a new key pair
+	  every time should be fine - actually the private exponent is ignored
+	  in OpenSSL >= 1.0.2f/1.0.1r even if we explicitly set.
+	  https://www.openssl.org/news/secadv/20160128.txt
 
-	* ext/tk/lib/tk/text.rb: add TkText::IndexModMethods module and
-	  TkText::IndexString class to treat text index modifiers
+Sun Jun  5 22:06:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* ext/tk/lib/tk/texttag.rb: use TkText::IndexModMethods module
+	* configure.in: Fix the timing to detect the appropriate C++ compiler
+	  in OS X.
 
-	* ext/tk/lib/tk/textmark.rb: ditto
+Sun Jun  5 21:42:24 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* ext/tk/lib/tk/textimage.rb: ditto
+	* ext/openssl/extconf.rb: Check absence of CRYPTO_lock() to see if the
+	  OpenSSL has the new threading API. In OpenSSL <= 1.0.2, an application
+	  had to set locking callbacks to use OpenSSL in a multi-threaded
+	  environment. OpenSSL 1.1.0 now finds pthreads or Windows threads so we
+	  don't need to do something special.
+	  [ruby-core:75225] [Feature #12324]
 
-	* ext/tk/lib/tk/textwindow.rb: ditto
+	  Also check existence of *_up_ref(). Some structures in OpenSSL have
+	  a reference counter. We used to increment it with CRYPTO_add() which
+	  is a part of the old API.
 
-	* ext/tk/lib/tk/textimage.rb: wrong gravity of text mark for embedded
-	  image
+	* ext/openssl/openssl_missing.h: Implement *_up_ref() if missing.
 
-	* ext/tk/lib/tk/textwindow.rb: wrong gravity of text mark for
-	  embedded window
+	* ext/openssl/ossl.c: Don't set locking callbacks if unneeded.
 
-Fri Dec 17 13:50:00 2004  Akiyoshi, Masamichi  <akiyoshi@hp.com>
+	* ext/openssl/ossl_pkey.c, ext/openssl/ossl_ssl.c,
+	  ext/openssl/ossl_x509cert.c, ext/openssl/ossl_x509crl.c,
+	  ext/openssl/ossl_x509store.c: Use *_up_ref() instead of CRYPTO_add().
 
-	* vms/vmsruby_private.c, vms/vmsruby_private.h: private routines
-	  for VMS port are added.
+Sun Jun  5 21:38:13 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* eval.c (ruby_init): change to call VMS private intialization routine.
+	* ext/openssl/extconf.rb: Check if RAND_pseudo_bytes() is usable. It is
+	  marked as deprecated in OpenSSL 1.1.0.
+	  [ruby-core:75225] [Feature #12324]
 
-Fri Dec 17 13:33:58 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/openssl/ossl_rand.c: Disable Random.pseudo_bytes if
+	  RAND_pseudo_bytes() is unavailable.
 
-	* lib/cgi/session.rb (CGI::Session#initialize): control adding
-	  session_id hidden fields.  fixed: [ruby-talk:123850]
+	* test/openssl/test_random.rb: Don't test Random.pseudo_bytes if not
+	  defined.
 
-Thu Dec 16 23:25:25 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+Sun Jun  5 19:06:40 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* lib/drb/drb.rb, lib/drb/ssl.rb: backported from CVS HEAD.
-	  [druby-ja:101]
+	* NEWS: Add news about Unicode-wide case mapping for
+	  String/Symbol#upcase/downcase/swapcase/capitalize(!).
 
-	* test/drb/test_drb.rb: adjust and reduce sleep (backported from
-	  CVS HEAD.)
+Sun Jun  5 15:24:33 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Thu Dec 16 18:44:58 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* test/ruby/enc/test_case_comprehensive.rb:
+	  Remove :lithuanian guard for Unicode case mapping.
 
-	* lib/webrick/httpserver.rb (WEBrick::HTTPServer#run): should wait
-	  for reading request till data arrive. [ruby-talk:121068]
+Sun Jun  5 14:46:34 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* lib/webrick/server.rb (WEBrick::GenericServer#start_thread):
-	  should log about all accepted socket. [ruby-core:03962]
+	* string.c: Remove :lithuanian guard for Unicode case mapping.
 
-	* lib/webrick/accesslog.rb (WEBrick::AccessLog#setup_params):
-	  "%%" and "%u" are supported. [webricken:135]
+Sat Jun  4 10:54:52 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/webrick/httpservlet/filehandler.rb
-	  (WEBrick::HTTPServlet::FileHandler#check_filename):
-	  :NondisclosureName is acceptable if it is Enumerable.
+	* missing/crypt.h (struct crypt_data): remove unnecessary member
+	  "initialized".
 
-	* lib/webrick/config.rb (WEBrick::Config::FileHandler):
-	  default value of :NondisclosureName is [".ht*", "*~"].
+	* missing/crypt.c (des_setkey_r): nothing to be initialized in
+	  crypt_data.
 
-Thu Dec 16 18:36:52 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* configure.in (struct crypt_data): check for "initialized" in
+	  struct crypt_data, which may be only in glibc, and isn't on AIX
+	  at least.
 
-	* ext/openssl/ossl.c (ossl_raise): refine message format.
+Sat Jun  4 10:38:39 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Dec 16 16:29:44 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* win32/win32.c: unify MAX_PATH, _MAX_PATH, and MAXPATHLEN to
+	  PATH_MAX, except for MAX_PATH in get_special_folder for an API
+	  limit.
 
-	* ext/tk/sample/demos-en/widget: modify version check for
-	  supporting features
+Fri Jun  3 21:27:22 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Dec 16 16:03:50 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* ruby.c (process_options): rb_str_conv_enc() never set encoding
+	  of the source string, but returns the string itself if the
+	  conversion failed.  then the instance variable does not need to
+	  be set again.
 
-	* ext/tk/lib/tk/bindtag.rb: bug fix [ruby-talk: 123667]
+Fri Jun  3 18:04:37 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* ext/tk/lib/tk/timer.rb: accept :idle for the interval argument
+	* ruby.c (process_options): need to duplicate path before passing it to
+	  rb_str_conv_enc() because the function might call rb_enc_associate()
+	  internally.  this fixes test failures on Windows introduced at r55260.
 
-	* ext/tk/lib/tk.rb: add TkComm._callback_entry?()
+Fri Jun  3 17:44:25 2016  Reiner Herrmann  <reiner@reiner-h.de>
 
-	* ext/tk/lib/multi-tk.rb: add MultiTkIp.cb_entry_class
+	* lib/mkmf.rb (create_makefile): sort lists of source and object
+	  files in generated Makefile, unless given by extconf.rb.
+	  [Fix GH-1367]
 
-	* ext/tk/lib/tk/canvas.rb: use TkComm._callback_entry?()
+Thu Jun  2 21:18:10 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/tk/lib/tk/canvastag.rb: ditto
+	* win32/win32.c (get_special_folder): use SHGetPathFromIDListEx if
+	  available instead of old SHGetPathFromIDListW, to check the
+	  buffer size.
 
-	* ext/tk/lib/tk/dialog.rb: ditto
+Thu Jun  2 17:05:19 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/tk/lib/tk/optiondb.rb: ditto
+	* ruby.c (ruby_init_loadpath_safe): remove MAXPATHLEN restriction
+	  for Windows 10.
 
-	* ext/tk/lib/tk/text.rb: ditto
+Thu Jun  2 16:51:35 2016  Koichi ITO  <koic.ito@gmail.com>
 
-	* ext/tk/lib/tk/texttag.rb: ditto
+	* misc/ruby-mode.el (ruby-here-doc-beg-re),
+	  (ruby-here-doc-beg-match, ruby-parse-partial): Support for
+	  `squiggly heredoc' syntax in ruby-mode.  [Fix GH-1372]
 
-	* ext/tk/lib/tk/textwindow.rb: ditto
+Thu Jun  2 10:24:48 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/tk/lib/tk/timer.rb: ditto
+	* string.c: Raise ArgumentError when invalid string is detected in
+	  case mapping methods.
 
-	* ext/tk/lib/tk/validation.rb: ditto
+	* enc/unicode.c: Check for invalid string and signal with negative
+	  length value.
 
-	* ext/tk/lib/tkextlib/*: ditto
+	* test/ruby/enc/test_case_mapping.rb: Add tests for above.
 
-Thu Dec 16 03:14:28 2004  Minero Aoki  <aamine@loveruby.net>
+	* test/ruby/test_m17n_comb.rb: Add a message to clarify test failure.
 
-	* lib/net/http.rb (basic_encode): return value of pack('m') may
-	  include multiple CR/LFs.  Backported from main trunk (rev 1.112).
-	  [ruby-dev:25212]
+Wed Jun  1 21:41:05 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Thu Dec 16 00:33:37 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* ext/openssl/extconf.rb: Check existence of ASN1_TIME_adj(). The old
+	  ASN1_TIME_set() is not Year 2038 ready on sizeof(time_t) == 4
+	  environment. This function was added in OpenSSL 1.0.0.
+	  [ruby-core:45552] [Bug #6571]
 
-	* hash.c (Init_Hash): remove custom "hash" and "eql?".
+	* ext/openssl/ossl_asn1.c (ossl_time_split): Added. Split the argument
+	  (Time) into the number of days elapsed since the epoch and the
+	  remainder seconds to conform to ASN1_TIME_adj().
+	  (obj_to_asn1utime, obj_to_asn1gtime): Use ossl_time_split() and
+	  ASN1_*TIME_adj().
 
-Wed Dec 15 18:57:01 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* ext/openssl/ossl_asn1.h: Add the function prototype for
+	  ossl_time_split().
 
-	* lib/set.rb (Set::eql): wrong definition.  [ruby-dev:25207]
+	* ext/openssl/ossl_x509.[ch]: Add ossl_x509_time_adjust(). Similarly to
+	  obj_to_asn1*time(), use X509_time_adj_ex() instead of X509_time_adj().
 
-Wed Dec 15 18:48:42 2004  Shugo Maeda  <shugo@ruby-lang.org>
+	* ext/openssl/ossl_x509cert.c, ext/openssl/ossl_x509crl.c,
+	  ext/openssl/ossl_x509revoked.c: Use ossl_x509_time_adjust().
 
-	* ext/curses/curses.c (window_subwin): call NUM2INT() before
-	  GetWINDOW(). (backported from CVS HEAD)
+Wed Jun  1 15:58:20 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Dec 15 17:03:50 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* configure.in: revert r55237.  replace crypt, not crypt_r, and
+	  check if crypt is broken more.
 
-	* win32/win32.[ch] (rb_w32_isatty): new function to replace MSVCRT's
-	  isatty because it never sets errno. (backported from CVS HEAD)
+	* missing/crypt.c: move crypt_r.c
 
-Wed Dec 15 15:39:32 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* string.c (rb_str_crypt): use crypt_r if provided by the system.
 
-	* ext/openssl/ossl_x509name.c (ossl_x509name_to_a): avoid SEGV
-	  (rollback the previous commit).
+Wed Jun  1 14:07:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Dec 15 16:10:23 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* missing/crypt_r.c (a64toi): initialize statically and fix out of
+	  bounds access when salt is not 7bit clean.
 
-	* object.c (rb_obj_id_obsolete): warn always.
+Wed Jun  1 11:34:59 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* eval.c (rb_enable_super): ditto.
+	* win32/Makefile.sub (MISSING): fixed build error introduced at r55237.
 
-Wed Dec 15 15:31:02 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Wed Jun  1 09:48:06 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/set.rb (Set#==): [ruby-dev:25206]
+	* string.c (rb_str_crypt): use reentrant crypt_r.
 
-Wed Dec 15 14:22:10 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
+Wed Jun  1 09:37:26 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* win32/win32.c (rb_w32_fdisset): check whether the handle is valid.
-	  fixed: [ruby-core:03959]
+	* missing/crypt.c (des_setkey): void function never returns any value.
 
-Wed Dec 15 10:30:37 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Wed Jun  1 09:16:22 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/openssl/ossl_digest.c (ossl_digest_initialize): [ruby-dev:25198]
+	* crypt.h: separate header file from missing/crypt.c.
 
-Tue Dec 14 17:10:09 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* missing/crypt.c (crypt_r, setkey_r, encrypt_r): add reentrant
+	  versions.
 
-	* win32/win32.c (rb_w32_close): need to reset osfhnd().
+Wed Jun  1 02:25:38 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Dec 14 14:03:57 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* missing/crypt.c: fix size macros to use configured values
+	  for platforms long is larger than 32bit.
+	  [ruby-core:75792] [Bug #12446]
 
-	* ext/openssl/ossl.c (ossl_raise): avoid buffer overrun.
-	  [ruby-dev:25187]
+Tue May 31 17:28:46 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Dec 14 12:36:04 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* lib/optparse.rb (OptionParser::Completion.candidate): get rid of
+	  nil as key names.  [ruby-core:75773] [Bug #12438]
 
-	* lib/cgi/session.rb (CGI::Session::initialize): generate new
-	  session if given session_id does not exist.  [ruby-list:40368]
+	* lib/optparse.rb (OptionParser#make_switch): char class option
+	  cannot be NoArgument, default to RequiredArgument.
 
-Mon Dec 13 18:13:52 2004  Tanaka Akira  <akr@m17n.org>
+Tue May 31 00:30:11 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* gc.c (stack_end_address): new function to obtain stack end address.
-	  stack_end_address calls __builtin_frame_address(0) to obtain the
-	  frame pointer of a stack frame of stack_end_address.  The address
-	  is the stack pointer of the caller's stack frame.
-	  (SET_STACK_END): use stack_end_address.
-	  This makes the conservative garbage collector to scan a stack frame
-	  of the garbage_collect function itself.  This is required because
-	  callee-save registers may be stored in the frame.
-	  [ruby-dev:25158]
+	* ext/socket/raddrinfo.c (host_str, port_str): Use StringValueCStr
+	  instead of (Safe)StringValue, to detect NUL byte in the string.
 
-Mon Dec 13 00:58:02 2004  Tanaka Akira  <akr@m17n.org>
+Mon May 30 22:02:01 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* lib/pathname.rb (cleanpath_aggressive): make it private.
-	  (cleanpath_conservative): ditto.
-	  Suggested by Daniel Berger.  [ruby-core:3914]
+	* ext/openssl/ossl_asn1.c (time_to_time_t): Use NUM2TIMET() instead of
+	  NUM2LONG(). time_t may be larger than long.
+	  [ruby-core:45552] [Bug #6571]
 
-Sun Dec 12 20:06:38 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+Mon May 30 21:15:37 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* lib/drb/drb.rb: backported from CVS HEAD.
+	* string.c: Document current behavior for other case mapping methods
+	  on String. [ci skip]
 
-Sun Dec 12 10:35:10 2004  Dave Thomas  <dave@pragprog.com>
+Mon May 30 20:00:25 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* lib/rdoc/generators/template/html/html.rb (RDoc::Page): Don't
-	  show an accessor's r/w flag if none was specified
+	* string.c: Document current situation for String#downcase. [ci skip]
 
-Sun Dec 12 10:14:03 2004  Dave Thomas  <dave@pragprog.com>
+Mon May 30 18:29:28 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* lib/rdoc/rdoc.rb (RDoc::RDoc::parse_files): Never exclude files
-	  explicitly given on the command line.
+	* ext/openssl/ossl_ssl.c (ossl_sslctx_s_alloc): Enable the automatic
+	  curve selection for ECDH by calling SSL_CTX_set_ecdh_auto(). With
+	  this a TLS server automatically selects a curve which both the client
+	  and the server support to use in ECDH. This changes the default
+	  behavior but users can still disable ECDH by excluding 'ECDH' cipher
+	  suites from the cipher list (with SSLContext#ciphers=). This commit
+	  also deprecate #tmp_ecdh_callback=. It was added in Ruby 2.3.0. It
+	  wraps SSL_CTX_set_tmp_ecdh_callback() which will be removed in OpenSSL
+	  1.1.0. Its callback receives two values 'is_export' and 'keylength'
+	  but both are completely useless for determining a curve to use in
+	  ECDH. The automatic curve selection was introduced to replace this.
 
-Sun Dec 11 23:54:07 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	  (ossl_sslctx_setup): Deprecate SSLContext#tmp_ecdh_callback=. Emit a
+	  warning if this is in use.
 
-	* ext/tk/*: update to support libraries in ActiveTcl8.4.12.0
-	  (see ext/tk/ChangeLog.tkextlib).
+	  (ossl_sslctx_set_ecdh_curves): Add SSLContext#ecdh_curves=. Wrap
+	  SSL_CTX_set1_curves_list(). If it is not available, this falls back
+	  to SSL_CTX_set_tmp_ecdh().
 
-	* ext/tk/sample/scrollframe.rb: add a new sample.
+	  (Init_ossl_ssl): Define SSLContext#ecdh_curves=.
 
-Sat Dec 11 20:12:21 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+	* ext/openssl/extconf.rb: Check the existence of EC_curve_nist2nid(),
+	  SSL_CTX_set1_curves_list(), SSL_CTX_set_ecdh_auto() and
+	  SSL_CTX_set_tmp_ecdh_callback().
 
-	* lib/drb/drb.rb: add DRbRemoteError. [ruby-list:40348],
-	  [ruby-list:40390]
-
-	* test/drb/drbtest.rb: ditto.
-
-	* test/drb/ut_drb.rb: ditto.
+	* ext/openssl/openssl_missing.[ch]: Implement EC_curve_nist2nid() if
+	  missing.
 
-Sat Dec 11 15:38:14 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* test/openssl/test_pair.rb (test_ecdh_callback): Use
+	  EnvUtil.suppress_warning to suppress deprecated warning.
 
-	* lib/jcode.rb (String::succ): [ruby-dev:25156]
+	  (test_ecdh_curves): Test that SSLContext#ecdh_curves= works.
 
-Sat Dec 11 12:41:55 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* test/openssl/utils.rb (start_server): Use SSLContext#ecdh_curves=.
 
-	* eval.c (run_trap_eval): prototype; avoid VC++ warnings.
+Mon May 30 16:28:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/socket/getaddrinfo.c: fix typo. fixed: [ruby-core:03947]
+	* ext/socket/raddrinfo.c (host_str, port_str): use RSTRING_LEN
+	  instead of strlen, since RSTRING_PTR StringValueCStr may not be
+	  NUL-terminated when SHARABLE_MIDDLE_SUBSTRING=1.  reported by
+	  @tmtms, http://twitter.com/tmtms/status/736910516229005312
 
-	* win32/win32.c: need to include dln.h.
+Mon May 30 16:20:26 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Dec 11 00:10:18 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* string.c (str_fill_term): return new pointer reallocated by
+	  filling terminator.
 
-	* io.c (io_reopen): [ruby-dev:25150]
+Mon May 30 14:54:58 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Dec 10 08:39:27 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/stringio/stringio.c (enc_subseq): share the return value and
+	  the buffer as possible.
 
-	* ext/socket/socket.c (sock_listen): get OpenFile just before calling
-	  listen(2).  fixed: [ruby-dev:25149]
+Mon May 30 14:50:25 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Dec  9 17:00:00 2004  Akiyoshi, Masamichi  <akiyoshi@hp.com>
+	* string.c (str_substr, rb_str_aref): refactor not to create
+	  unnecessary empty string.
 
-	* ext/socket/socket.c, ext/socket/getaddrinfo.c: port to VMS
+	* string.c (str_byte_substr, str_byte_aref): ditto.
 
-Thu Dec  9 16:31:02 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
+Mon May 30 00:09:37 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* ext/sdbm/init.c (GetDBM): typo.
+	* ext/-test-/auto_ext.rb: fixed a heedless bug introduced at r55198.
+	  this change will make RubyCI green.
 
-Thu Dec  9 16:05:00 2004  Akiyoshi, Masamichi  <akiyoshi@hp.com>
+Sun May 29 22:58:19 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* defines.h: change path of vms.h
-	* vms/vms.h: delete reference for snprintf()
-	* vms/config.h: new file
-	* vms/config.h_in: deleted
+	* regexec.c (ONIGENC_IS_MBC_ASCII_WORD): redefine optimized one.
+	  WORD of Ruby's ascii compatible encoding is always [a-zA-Z0-9_].
 
-Thu Dec  9 14:38:35 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun May 29 22:44:19 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* string.c (rb_str_inspect): escape # which starts an expression
-	  substitution.  fixed: [ruby-core:03922]
+	* regexec.c (match_at): make compilers optimize harder.
 
-	* string.c (rb_str_dump): not escape # which isn't a substitution.
+Sun May 29 12:08:42 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Dec  9 10:54:36 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* ext/-test-/auto_ext.rb (auto_ext): utility method to create
+	  extension libraries for tests.
 
-	* ext/dbm/dbm.c (fdbm_select): [ruby-dev:25132]
+Sat May 28 20:40:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/sdbm/init.c: ditto.
+	* misc/ruby-additional.el (ruby-insert-heredoc-code-block): insert
+	  here document code block for assert_separately mainly.
 
-	* ext/gdbm/gdbm.c: ditto.
+Sat May 28 20:34:19 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Thu Dec  9 03:08:36 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* test/test_unicode_normalize.rb: Add test to check for availability of
+	  Unicode data file; refactoring; fix an error with tests for destructive
+	  method (unicode_normalize!).
 
-	* ext/tcltklib/tcltklib.c (ip_init): set root-win title to "ruby" when
-	  the running script is '-e one-liner' or '-' (stdin).
+Sat May 28 19:08:36 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/tcltklib/extconf.rb: add find_library("#{lib}#{ver}",..) for
-	  stub libs
+	* test/ruby/enc/test_case_comprehensive.rb: Add error messages to tests
+	  for data file availability; refactoring.
 
-	* ext/tk/lib/tk/textmark.rb: TkTextMarkCurrent and TkTextMarkAnchor
-	  have a wrong parent class.
+Sat May 28 14:00:10 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* ext/tk/lib/tk/dialog.rb: rename TkDialog2 --> TkDialogObj and
-	  TkWarning2 --> TkWarningObj (old names are changed to alias names)
+	* ext/openssl/lib/openssl/ssl.rb (SSLSocket): Move the implementation of
+	  SSLSocket#initialize to C. Initialize the SSL (OpenSSL object) in it.
+	  Currently this is delayed until ossl_ssl_setup(), which is called from
+	  SSLSocket#accept or #connect. Say we call SSLSocket#hostname= with an
+	  illegal value. We expect an exception to be raised in #hostname= but
+	  actually we get it in the later SSLSocket#connect. Because the SSL is
+	  not ready at #hostname=, the actual call of SSL_set_tlsext_host_name()
+	  is also delayed.
+	  This also fixes: [ruby-dev:49376] [Bug #11724]
 
-	* ext/tk/lib/tk/dialog.rb: bug fix of treatment of 'prev_command'
-	  option and hashes for configuration
+	* ext/openssl/ossl_ssl.c (ossl_ssl_initialize): Added. Almost the same
+	  as the Ruby version but this instantiate the SSL object at the same
+	  time.
 
-	* ext/tk/lib/tk/dialog.rb: add TkDialogObj#name to return the
-	  button name
+	  (ossl_ssl_setup): Adjust to the changes. Just set the underlying IO to
+	  the SSL.
 
-	* ext/tk/lib/tk/radiobutton.rb: rename enbugged method value() ==>
-	  get_value() and value=(val) ==> set_value(val).
+	  (ssl_started): Added. Make use of SSL_get_fd(). This returns -1 if not
+	  yet set by SSL_set_fd().
 
-	* ext/tk/lib/tk/menu.rb: add TkMenu.new_menuspec
+	  (ossl_ssl_data_get_struct): Removed. Now GetSSL() checks that the SSL
+	  exists.
 
-	* ext/tk/lib/tk/menu.rb: add alias (TkMenuButton = TkMenubutton,
-	  TkOptionMenuButton = TkOptionMenubutton)
+	  (ossl_ssl_set_session): Don't call ossl_ssl_setup() here as now the
+	  SSL is already instantiated in #initialize.
 
-	* ext/tk/lib/tk/event.rb: new method aliases (same as option keys of
-	  event_generate) for Event object
+	  (ossl_ssl_shutdown, ossl_start_ssl, ossl_ssl_read_internal,
+	   ossl_ssl_write_internal, ossl_ssl_stop, ossl_ssl_get_cert,
+	   ossl_ssl_get_peer_cert, ossl_ssl_get_peer_cert_chain,
+	   ossl_ssl_get_version, ossl_ssl_get_cipher, ossl_ssl_get_state,
+	   ossl_ssl_pending, ossl_ssl_session_reused,
+	   ossl_ssl_get_verify_result, ossl_ssl_get_client_ca_list,
+	   ossl_ssl_npn_protocol, ossl_ssl_alpn_protocol, ossl_ssl_tmp_key): Use
+	  GetSSL() instead of ossl_ssl_data_get_struct(). Use ssl_started().
 
-	* ext/tk/lib/tk/font.rb: configinfo returns proper types of values
+	  (Init_ossl_ssl): Add method declarations of SSLSocket#{initialize,
+	  hostname=}.
 
-	* ext/tk/lib/tk.rb: bind methods accept subst_args + block
+	* ext/openssl/ossl_ssl.h (GetSSL): Check that the SSL is not NULL. It
+	  should not be NULL because we now set it in #initialize.
 
-	* ext/tk/lib/tk/canvas.rb: ditto
+	* ext/openssl/ossl_ssl_session.c (ossl_ssl_session_initialize): No need
+	  to check if the SSL is NULL.
 
-	* ext/tk/lib/tk/canvastag.rb: ditto
+Sat May 28 10:47:40 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/tk/lib/tk/frame.rb: ditto
+	* gems/bundled_gems: Update latest releases, power_assert-0.3.0,
+	  test-unit 3.1.9, minitest 5.9.0, did_you_mean 1.0.1
 
-	* ext/tk/lib/tk/text.rb: ditto
+Sat May 28 10:45:40 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/tk/lib/tk/texttag.rb: ditto
+	* addr2line.c: drop support for ATARI ST platform. It was
+	  discontinued more than two decades ago. [fix GH-1350] Patch by
+	  @cremno
+	* include/ruby/ruby.h: ditto.
+	* io.c: ditto.
 
-	* ext/tk/lib/tk/toplevel.rb: ditto
+Sat May 28 10:39:47 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/tk/lib/tkextlib/*: ditto and bug fix
+	* test/ruby/enc/test_case_comprehensive.rb: Converted exception for
+	  unavailable Unicode data files to failed assertion.
 
-Wed Dec  8 23:54:29 2004  Dave Thomas  <dave@pragprog.com>
+Sat May 28 10:26:18 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* lib/rdoc/generators/template/html/html.rb (RDoc::Page): Typo
-	  meant that h2 tag was invisible.
+	* lib/cgi/util.rb: added missing quote.
+	  [fix GH-1363][ci skip] Patch by @dwaller
 
-Wed Dec  8 21:56:31 2004  Kouhei Sutou  <kou@cozmixng.org>
+Fri May 27 17:38:49 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rss, test/rss, sample/rss: backported from CVS HEAD.
+	* variable.c (rb_local_constants_i): exclude hidden constants.
+	  [ruby-core:75575] [Bug #12389]
 
-Wed Dec  8 14:31:36 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Fri May 27 17:09:44 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* io.c (io_fwrite): change dereference for cosmetic reason.
+	* transcode.c (str_transcode0): scrub in the given encoding when
+	  the source encoding is given, not in the encoding of the
+	  receiver.  [ruby-core:75732] [Bug #12431]
 
-	* sprintf.c (rb_f_sprintf): [ruby-dev:25104]
+Fri May 27 15:07:32 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Dec  7 19:08:00 2004  Akiyoshi, Masamichi  <akiyoshi@hp.com>
+	* include/ruby/ruby.h (rb_scan_args): remove nul padding which
+	  caused syntax error if fmt is not a string literal.
 
-	* io.c (io_fwrite): fix offset incrementation (for VMS and Human68k)
+	* include/ruby/ruby.h (rb_scan_args_verify): suppress array-bounds
+	  warnings by old clang.
 
-Tue Dec  7 00:27:37 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* include/ruby/ruby.h (rb_scan_args0): make extractor macros
+	  inline functions, which do not validate the format and are
+	  unnecessary to be expanded.
 
-	* process.c (proc_setgroups): [ruby-dev:25081]
+Fri May 27 01:00:36 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Mon Dec  6 18:08:10 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* symbol.c (is_identchar): use ISDIGIT instead of rb_enc_isalnum.
+	  Though rb_enc_isalnum is encoding aware function, its argument here
+	  is *m, which is a single byte. Therefore ISDIGIT is faster.
 
-	* re.c (rb_reg_eqq): document fix.  [ruby-talk:122541]
+	* symbol.c (is_special_global_name): ditto.
 
-Mon Dec  6 17:19:13 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* symbol.c (rb_enc_symname_type): ditto.
 
-	* rubysig.h (TRAP_BEG, TRAP_END): safe errno around CHECK_INTS.
-	  (backported from CVS HEAD)  [ruby-dev:24993]
+Fri May 27 00:39:40 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Dec  6 10:18:17 2004  Dave Thomas  <dave@pragprog.com>
+	* include/ruby/ruby.h (rb_scan_args): add nul padding here to
+	  apply to all references.
 
-	* lib/rdoc/parsers/parse_rb.rb (RDoc::RubyParser::look_for_directives_in):
-	  Oops - 1.8 doesn't have String#clear
+	* include/ruby/ruby.h (rb_scan_args_verify): move length mismatch
+	  check outside conditional operators.
 
-Mon Dec  6 09:59:23 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Thu May 26 14:21:10 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* ext/socket/socket.c (sock_connect): use rb_str_new4().
-	  [ruby-dev:25052]
+	* ext/openssl/ossl_pkey_dh.c (ossl_dh_compute_key): Check that the DH
+	  has 'p' (the prime) before calling DH_size(). We can create a DH with
+	  no parameter but DH_size() does not check and dereferences NULL.
+	  [ruby-core:75720] [Bug #12428]
 
-Mon Dec  6 01:42:08 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* ext/openssl/ossl_pkey_dsa.c (ossl_dsa_sign): Ditto. DSA_size() does
+	  not check dsa->q.
 
 	* ext/openssl/ossl_pkey_rsa.c (ossl_rsa_public_encrypt,
 	  ossl_rsa_public_decrypt, ossl_rsa_private_encrypt,
-	  ossl_rsa_private_decrypt): should take an optional argument
-	  to specify padding mode. [ruby-talk:122539]
-
-	* ext/openssl/ossl_pkey_rsa.c (Init_ossl_rsa): add new constants
-	  PKCS1_PADDING, SSLV23_PADDING, NO_PADDING and PKCS1_OAEP_PADDING
-	  under OpenSSL::PKey::RSA.
-
-	* test/openssl/test_pkey_rsa.rb: new file.
-
-Sun Dec  5 19:39:17 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse.rb (OptionParser::Completion#complete): new parameter
-	  to direct case insensitiveness.
-
-	* lib/optparse.rb (OptionParser#order!): ignore case only for long
-	  option.  [ruby-dev:25048]
-
-Sat Dec  4 22:54:15 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (io_write): remove rb_str_locktmp().  [ruby-dev:25050]
-
-	* io.c (io_fwrite): takes VALUE string as an argument.
-	  [ruby-dev:25050]
-
-	* ext/socket/socket.c (sock_connect): remove rb_str_locktmp().
-	  [ruby-dev:25050]
-
-	* ext/socket/socket.c (udp_connect): [ruby-dev:25045]
-
-	* ext/socket/socket.c (udp_bind): ditto.
-
-	* ext/socket/socket.c (udp_send): ditto.
-
-	* ext/socket/socket.c (bsock_send): ditto.
-
-	* ext/socket/socket.c (s_recvfrom): ditto.
-
-	* hash.c (rb_hash_hash): should provide "hash" method where "eql?"
-	  is redefined.  [ruby-talk:122482]
-
-Sat Dec  4 14:54:52 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* eval.c (proc_invoke): use volatile `tmp' rather than `args'.
-	  [ruby-core:03882]
-
-Sat Dec  4 14:28:56 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/code_objects.rb (RDoc::Context::Section::set_comment):
-	  Section comments may now be bracketed by lines which are
-	  ignored. You can now write
-	      # -----------
-	      # :section: Dave's Section
-	      # comment material
-	      # -----------
-	   The lines before :section: are removed, and identical lines at the end are
-	   also removed if present.
-
-Sat Dec  4 03:33:45 2004  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* ext/readline/readline.c: check $SAFE. (backported from CVS HEAD)
-
-	* test/readline/test_readline.rb: added tests for readline.
-	  (backported from CVS HEAD)
-
-Sat Dec  4 02:24:00 2004  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/nkf/nkf.c: add constant NKF::VERSION
-
-	* ext/nkf/nkf.c(guess): this becomes an alias of guess2
-
-	* ext/nkf/test.rb(mime_out2): add --no-cp932
-
-	* ext/nkf/nkf-utf8/nkf.c: original nkf2 revision 1.47
-
-Sat Dec  4 00:35:08 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/socket/socket.c (bsock_setsockopt): [ruby-dev:25039]
-
-Fri Dec  3 18:57:03 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/ostruct.rb: 1.9 marshaling support back-ported.
-	  [ruby-core:03871]
-
-Fri Dec  3 13:45:20 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (proc_invoke): copy arguments to frame.argv.
-	  [ruby-core:03861]
-
-Fri Dec  3 12:25:41 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* st.h: fix prototypes.
-
-Fri Dec  3 00:21:05 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* object.c (convert_type): use rb_respond_to() again.
-	  [ruby-dev:25021]
-
-	* eval.c (rb_respond_to): funcall respond_to? if it's redefined.
-	  [ruby-dev:25021]
-
-Fri Dec  3 01:55:24 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: widget configuration by TkWindow#method_missing
-	  returns proper object. "widget.option = val" returns val, and
-	  "widget.option(val)" returns self.
-
-	* ext/tk/lib/tk/font.rb: TkFont#replace accepts only one font argument.
-
-	* ext/tk/lib/tk/radiobutton.rb: add TkRadiobutton#value and
-	  TkRadiobutton#value=(val).
-
-	* ext/tk/lib/tk/spinbox.rb: callback substitution support on
-	  command option.
-
-	* ext/tk/sample/demos-en/widget: bug fix (wrong image height)
-
-	* ext/tk/sample/demos-jp/widget: ditto.
-
-Fri Dec  3 00:11:48 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (rb_file_initialize): [ruby-dev:25032]
-
-Thu Dec  2 16:41:03 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_protect): prevent continuations created inside from being
-	  called from the outside.  [ruby-dev:25003]
-
-	* eval.c (rb_callcc, rb_cont_call): prohibit calling from different
-	  signal contexts.  [ruby-dev:25022]
-
-Thu Dec  2 09:57:24 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/ostruct.rb (OpenStruct::Marshaler): OpenStruct can be
-	  marshaled again.  [ruby-core:03862]
-
-Thu Dec  2 09:30:06 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (thread_mark): mark thread group.  [ruby-dev:25020]
-
-	* eval.c (thgroup_add): check whether the argument is really a Thread.
-
-Thu Dec  2 07:57:16 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (rb_io_ctl): [ruby-dev:25019]
-
-Wed Dec  1 02:21:02 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* signal.c (sighandler): call handler immediately only for default
-	  handlers.  [ruby-dev:25003]
-
-Tue Nov 30 23:38:18 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (io_fread): need not to null terminate.  [ruby-dev:24998]
-
-	* io.c (read_all): remove unnecessary rb_str_resize().
-	  [ruby-dev:24996]  (backported from CVS HEAD)
-
-	* io.c (io_readpartial): ditto.
-
-	* io.c (io_read): ditto.
-
-Tue Nov 30 16:18:50 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (io_fread): need not to null terminate.  [ruby-dev:24998]
-
-	* io.c (read_all): remove unnecessary rb_str_resize().
-	  [ruby-dev:24996]
-
-	* io.c (io_read): ditto.
-
-Tue Nov 30 00:49:08 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (rb_io_sysread): use temporary lock.  [ruby-dev:24992]
-
-Mon Nov 29 16:06:04 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/stringio/stringio.c (strio_write): insufficiently filled string
-	  being extended when overwriting.  [ruby-core:03836]
-
-Mon Nov 29 15:59:05 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/ostruct.rb (OpenStruct::method_missing): check method
-	  duplication for -d.
-
-	* lib/ostruct.rb (OpenStruct::initialize): ditto.
-
-Mon Nov 29 15:22:28 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/io/nonblock/test_flush.rb: abandon tests when io/nonblock is
-	  not supported.
-
-Mon Nov 29 03:08:30 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* object.c (convert_type): direct call conversion methods for the
-	  performance.  [ruby-core:03845]
-
-	* eval.c (rb_funcall_rescue): new function.
-
-	* object.c (rb_Array): avoid using rb_respond_to().
-
-	* object.c (rb_Integer): ditto.
-
-	* parse.y (reduce_nodes): empty body should return nil.
-
-	* string.c (rb_str_aset): the original string should not be
-	  affected by modifying duplicated string.  [ruby-dev:24981]
-
-Mon Nov 29 13:57:38 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (CreateChild): search executable file if no program
-	  name given. (backported from CVS HEAD)
-
-Mon Nov 29 13:37:54 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (fptr_finalize): must not use FILE after fclose().
-	  [ruby-dev:24985]
-
-Mon Nov 29 13:16:31 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (CreateChild): push back the last space before next
-	  loop because CharNext() eats it.
-
-Mon Nov 29 01:18:18 2004  Tanaka Akira  <akr@m17n.org>
-
-	* io.c (rb_io_check_writable): call io_seek regardless of
-	  NEED_IO_SEEK_BETWEEN_RW.  [ruby-dev:24986]
-
-Sat Nov 27 21:43:39 2004  Tanaka Akira  <akr@m17n.org>
-
-	* io.c: avoid data lost with nonblocking fd and
-	  stdio buffering in sync mode.  [ruby-dev:24966]
-	  based on matz's patch [ruby-dev:24967]
-	  (io_fwrite): new primitive writing function which writes
-	  directly if sync mode.
-	  (rb_io_fwrite): wrapper for io_fwrite now.
-	  (io_write): call io_fwrite instead of rb_io_fwrite.
-
-Sat Nov 27 14:44:15 2004  Kent Sibilev  <ksibilev@bellsouth.net>
-
-	* lib/cgi/session.rb (CGI::Session::initialize): create_new_id is
-	  now a instance method.  [ruby-core:03832]
-
-Sat Nov 27 09:41:21 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (io_fread): old rb_io_fread with file closing checking.
-	  (rb_io_fread): wrapper for io_fread now.
-	  [ruby-dev:24964]
-
-Fri Nov 26 18:02:44 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: Tk.destroy uses TkWindow#epath
-
-	* ext/tk/lib/tk/image.rb: bug fix
-
-	* ext/tk/lib/tk/wm.rb: add 'iconphoto' method(Windows only)
-
-	* ext/tk/lib/tkextlib/*: some methods uses TkWindow#epath
-
-Fri Nov 26 13:49:06 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (method_missing): raise TypeError for classes do not
-	  have allocators.  [ruby-core:03752]
-
-	* lib/erb.rb: add RDoc by James Edward Gray II.  [ruby-core:03786]
-
-Fri Nov 26 13:29:02 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_rb.rb (RDoc::RubyParser::look_for_directives_in): Break
-	  out of preprocessing when we find a :section: directive (previously cleared out the
-	  comment, but this apparently now generates an error in gsub!)
-
-Fri Nov 26 00:17:40 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (io_read): move StringValue() check before GetOpenFile().
-	  [ruby-dev:24959]
-
-Thu Nov 25 20:14:57 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/thwait.rb (ThreadsWait#join_nowait): abnormally terminated
-	  threads should be also processed.  [ruby-talk:121320]
-
-Thu Nov 25 10:14:26 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dir.c (push_braces): do not reuse buffer strings.  [ruby-core:03806]
-
-Thu Nov 25 07:59:41 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (read_all): stringify non-nil buffer argument, and always
-	  taint the result.  [ruby-dev:24955]
-
-Wed Nov 24 01:01:31 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (io_read): integer conversion should be prior to
-	  GetOpenFile().  [ruby-dev:24952]
-
-	* configure.in, io.c: cancel [ ruby-Patches-1074 ].
-
-Tue Nov 23 08:09:50 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/menu.rb: improve usability of TkOptionMenubutton
-
-Tue Nov 23 02:00:21 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* file.c (rb_file_chown): integer conversion should be prior to
-	  GetOpenFile().  [ruby-dev:24949]
-
-Tue Nov 23 00:10:48 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* file.c (rb_file_chown): integer conversion should be prior to
-	  GetOpenFile().  [ruby-dev:24947]
-
-	* file.c (rb_file_truncate): ditto.
-
-	* file.c (rb_file_s_truncate): ditto.
-
-	* dir.c (dir_seek): use NUM2OFFT().
-
-	* misc/ruby-mode.el (ruby-non-block-do-re): should not match words
-	  start with block keyword and underscore.  [ruby-core:03719]
-
-Mon Nov 22 22:33:02 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_rb.rb (RDoc::parse_require): Don't use names
-	  of variables or constants when oarsing 'require'
-
-Mon Nov 22 00:13:35 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* dir.c (dir_seek): should retrieve dir_data after NUM2INT().
-	  [ruby-dev:24941]
-
-Sat Nov 20 23:57:33 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/README (et al): Add a new directive, :section:, and
-	  change the output format to accomodate. :section: allows to to
-	  group together methods, attributes, constants, etc under
-	  headings in the output. If used, a table of contents is
-	  generated.
-
-Sat Nov 20 23:56:54 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/options.rb (Options::parse): Force --inline-source if
-	  --one-file option given
-
-Sat Nov 20 23:55:19 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (rb_str_splice): should place index wrapping after
-	  possible modification.  [ruby-dev:24940]
-
-Sat Nov 20 13:26:03 2004  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/nkf/nkf-utf8/utf8tbl.c: original revision 1.7
-
-Sat Nov 20 05:34:24 2004  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/nkf/nkf-utf8/nkf.c: original nkf.c rev:1.40
-
-	* ext/nkf/test.rb: add test for mime encode/decode
-
-Sat Nov 20 01:37:34 2004  Johan Holmberg  <holmberg@iar.se>
-
-	* eval.c (error_print): nicer traceback at interrupt.
-	  [ruby-core:03774]
-
-Sat Nov 20 00:07:16 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (str_gsub): internal buffer should not be listed by
-	  ObjectSpace.each_object() by String#gsub.  [ruby-dev:24931]
-
-Fri Nov 19 01:20:22 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/cgi/session.rb (CGI::Session::FileStore::initialize): raise
-	  exception if data corresponding to session specified from the
-	  client does not exist.
-
-Fri Nov 19 00:59:31 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (str_gsub): internal buffer should not be listed by
-	  ObjectSpace.each_object().  [ruby-dev:24919]
-
-Thu Nov 18 18:41:08 2004  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* test/ruby/test_stringchar.rb (test_bang): added.
-
-	* string.c (rb_str_upcase_bang, rb_str_capitalize_bang)
-	  (rb_str_swapcase_bang): missing rb_str_modify().  [ruby-dev:24915]
-
-Thu Nov 18 00:21:15 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* process.c (proc_getpgrp): prohibit for $SAFE=2.
-	  [ruby-dev:24899]
-
-	* process.c (get_pid): ditto.  [ruby-dev:24904]
-
-	* process.c (get_ppid): ditto.
-
-	* array.c (rb_ary_delete): defer rb_ary_modify() until actual
-	  modification.  [ruby-dev:24901]
-
-Thu Nov 18 10:10:14 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c, rubyio.h (rb_io_modenum_flags): exported.
-
-	* ext/stringio/stringio.c (strio_initialize): allow Fixnum as mode as
-	  well as IO.new does.  [ruby-dev:24896]
-
-Wed Nov 17 23:42:40 2004  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* test/ruby/test_settracefunc.rb: added.  [ruby-dev:24884]
-
-Wed Nov 17 13:56:57 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* parse.y (newline_node): should not use FL_SET. [ruby-dev:24874]
-
-	* parse.y (string_content): should not use FL_UNSET.
-
-	* node.h (NODE_NEWLINE): remove unused bit to utilize flag field
-	  in nodes.
-
-Wed Nov 17 13:09:40 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* {bcc32,win32,wince}/Makefile.sub (test): should build ruby.exe
-	  before running test. [ruby-core:03756]
-
-Wed Nov 17 04:33:01 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* pack.c: all features are backport from 1.9. [ruby-dev:24826]
-
-	* bignum.c (rb_big2ulong_pack): new function to pack Bignums.
-
-Wed Nov 17 03:42:45 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (rb_str_splice): move rb_str_modify() after
-	  StringValue(), which may alter the receiver.  [ruby-dev:24878]
-
-Tue Nov 16 23:45:07 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* numeric.c (flo_divmod): protect float values from GC by
-	  assignment to local variables.  [ruby-dev:24873]
-
-Tue Nov 16 16:30:21 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* {bcc32,win32,wince}/setup.mak (-epilogue-): remove config.h and
-	  config.status to force updating them.
-
-Tue Nov 16 16:20:45 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/stringio/stringio.c (strio_read): position was ignored when a
-	  buffer was passed.  http://www.yo.rim.or.jp/~nov/d/?date=20041116#p03
-
-Tue Nov 16 11:19:07 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/test/unit/autorunner.rb (Test::Unit::AutoRunner::options): use
-	  Regexp conversion.
-
-Tue Nov 16 01:41:31 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (str_mod_check): frozen check should be separated.
-	  [ruby-core:3742]
-
-	* array.c (rb_ary_update): pedantic check to detect
-	  rb_ary_to_ary() to modify the receiver.  [ruby-dev:24861]
-
-Mon Nov 15 13:50:52 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (rb_str_justify): typo fixed.  [ruby-dev:24851]
-
-Mon Nov 15 11:50:32 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* misc/ruby-mode.el (ruby-special-char-p, ruby-parse-partial): handle
-	  operator symbols.  [ruby-talk:120177]
-
-Sun Nov 14 13:27:03 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/pp.rb (PP#object_address_group): remove odd number of 'f'
-	  prefixed to negative address.
-
-Sun Nov 14 08:51:04 2004  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* test/logger/test_logger.rb: Logger just expects
-	  Logger#datetime_format to be used for Time#strftime independently of
-	  locale. [ruby-dev:24828]
-
-Fri Nov 12 15:03:26 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* eval.c (ruby_options): now we cannot call rb_glob() before
-	  ruby_init(), so call rb_w32_cmdvector() at ruby_options().
-
-	* win32.{c,h} (rb_w32_cmdvector): rename make_cmdvector() and
-	  export it.
-
-Fri Nov 12 14:08:01 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/event.rb: remove $LOADED_FEATURES trick
-
-	* ext/tk/lib/tk.rb: ditto
-
-Fri Nov 12 00:31:05 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/gdbm/gdbm.c (fgdbm_store): StringValue() may alter string
-	  pointer.  [ruby-dev:24783]
-
-Thu Nov 11 17:36:12 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dir.c (rb_globi): also should call back via rb_glob_caller().
-	  [ruby-dev:24775]
-
-Thu Nov 11 16:47:21 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/ruby/test_file.rb (test_truncate_wbuf): we want to test
-	  only File#truncate, not behaviour of seek(2).
-
-Thu Nov 11 09:41:01 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* dir.c (push_braces): was confusing VALUE and char*.
-
-	* dir.c (rb_push_glob): Dir.glob should have called its block.
-
-Thu Nov 11 01:52:52 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (syserr_initialize): use stringified object.
-	  [ruby-dev:24768]
-
-Wed Nov 10 22:49:01 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/delegate.rb (SimpleDelegator::dup): wrong number of
-	  arguments.
-
-	* lib/delegate.rb (DelegateClass::dup): ditto.
-
-Wed Nov 10 12:31:21 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* README.EXT (Example): extconf.rb is indispensable now.
-
-Wed Nov 10 03:33:36 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c: fix SEGV when compiled with Tcl/Tk8.3.x
-	  or older
-
-	* ext/tk/lib/tkextlib/tile/style.rb: bug fix
-
-Tue Nov  9 14:27:18 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse.rb (OptionParser::Officious): moved from DefaultList.
-
-Tue Nov  9 01:05:04 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* dir.c (rb_glob2): do not allocate buffer from heap to avoid
-	  memory leaks.  use string object for buffering instead.
-	  [ruby-dev:24738]
-
-	* dir.c (join_path): ditto.
-
-	* io.c (io_read): external input buffer may be modified even after
-	  rb_str_locktmp().  [ruby-dev:24735]
-
-	* dir.c (fnmatch): p or s may be NULL.  [ruby-dev:24749]
-
-Tue Nov  9 00:53:53 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* regex.c (slow_match): avoid GCC 3.4.x warnings.
-
-Tue Nov  9 00:50:06 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/rdoc.rb: Change version numbering of RDoc and ri
-
-Mon Nov  8 23:38:35 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/extservm.rb: add DRb::ExtServManager#uri=.
-	  [ruby-dev:24743]
-
-Mon Nov  8 22:20:19 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_rb.rb (RDoc::RubyParser::parse_class):
-	  Fix bug where parent class wasn't being detected if the
-	  child class was defined using the A::B notation.
-
-Mon Nov  8 00:14:13 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* configure.in: add setup for mignw32 cross compiling.
-	  [ruby-talk:119413]
-
-Sun Nov  7 23:49:26 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: bind-event methods accept multi substitution
-	  arguments.
-
-	* ext/tk/lib/tk/canvas.rb: ditto.
+	  ossl_rsa_private_decrypt): Ditto. RSA_size() does not check rsa->n.
 
-	* ext/tk/lib/tk/canvastag.rb: ditto.
+Thu May 26 14:13:52 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/tk/lib/tk/text.rb: ditto.
+	* include/ruby/ruby.h (rb_scan_args_count): verify length with
+	  counting variables together.
 
-	* ext/tk/lib/tk/texttag.rb: ditto.
+Thu May 26 09:45:41 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/tk/lib/tkextlib: ditto.
+	* test/ruby/enc/test_case_comprehensive.rb: Add set of comprehensive
+	  (across most Unicode characters; later across most character encodings)
+	  tests for case mapping.
 
-Sat Nov  6 14:58:44 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Thu May 26 05:00:13 2016  Benoit Daloze  <eregontp@gmail.com>
 
-	* lib/webrick/server.rb (WEBrick::HTTPServer#start): remove
-	  :DoNotReverseLookup option. (Socket#do_not_reverse_lookup is a
-	  ruby 1.9 feature)
+	* class.c (rb_define_class): Fix documentation.
 
-Sat Nov  6 11:31:04 2004  Tadayoshi Funaba  <tadf@dotrb.org>
+Wed May 25 20:50:12 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/date.rb (_parse): checks whether zone was given.
+	* re.c (unescape_nonascii): scan hex up to only 3 characters.
+	  [Bug #12420] [Bug #12423]
 
-Sat Nov  6 00:46:27 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Wed May 25 19:07:19 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* string.c (rb_str_locktmp): check STR_TMPLOCK flag before
-	  locking.  [ruby-dev:24727]
+	* enc/unicode.c: Handle DOTLESS_i by hand because it isn't involved in folding.
 
-Fri Nov  5 18:12:42 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+Wed May 25 18:30:53 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* ext/tk/lib/tk/scrollable.rb: divide Scrollable module into
-	  X_Scrollable and Y_Scrollable
+	* regparse.c (fetch_token_in_cc): raise error if given octal escaped
+	  character is too big. [Bug #12420] [Bug #12423]
 
-	* ext/tk/lib/tk/entry.rb: include X_Scrollable instead of Scrollable
+Wed May 25 17:45:15 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* ext/tk/lib/tk/autoload.rb: define autoload for X_Scrollable and
-	  Y_Scrollable
+	* ext/openssl, test/openssl: Drop OpenSSL < 0.9.8 support.
 
-Fri Nov  5 16:05:32 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+Wed May 25 17:43:30 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* ext/tk/lib/tk.rb: TkComm._at() supprts both of "@x,y" and "@x"
+	* ext/openssl/openssl_missing.h, ext/openssl/ossl.h: Remove
+	  unnecessary 'extern "C"' blocks. We don't use C++ and these headers
+	  are local to ext/openssl, so there is no need to enclose with it.
 
-Fri Nov  5 13:22:58 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+Wed May 25 17:42:58 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* ext/tk/lib/tk/text.rb: sorry. bug fix again.
+	* ext/openssl/extconf.rb: Remove check of OPENSSL_FIPS macro. This is
+	  unneeded because we can check the macro directly in source code,
+	  just as we already do for OPENSSL_NO_* macros.
 
-Fri Nov  5 13:17:54 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* ext/openssl/ossl.c: Replace occurrences of HAVE_OPENSSL_FIPS with
+	  OPENSSL_FIPS.
 
-	* ext/tk/lib/tk/text.rb: bug fix
+Wed May 25 17:13:35 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Nov  5 08:52:48 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* class.c (rb_scan_args): merge code for n_trail.
 
-	* gc.c (gc_mark): stricter GC stack check.
+Wed May 25 17:11:34 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Nov  5 08:52:48 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* include/ruby/ruby.h (rb_scan_args_validate): move failed
+	  condition to the terminal.  [ruby-core:75714] [Bug #12426]
 
-	* gc.c (gc_mark): stricter GC stack check.
+Wed May 25 13:13:37 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Fri Nov  5 08:34:43 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* regcomp.c: remove condition for debug output because prelude
+	  doesn't use regexp now.
 
-	* string.c (str_gsub): should have removed rb_str_unlocktmp(str).
-	  [ruby-dev:24708]
+Wed May 25 13:10:30 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Thu Nov  4 21:25:38 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* regcomp.c (compile_length_tree): return error code immediately
+	  if compile_length_tree raised error [Bug #12418]
 
-	* string.c (str_gsub): string modify check no longer based on
-	  tmplock.  [ruby-dev:24706]
+Wed May 25 08:01:39 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Thu Nov  4 19:27:46 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* enc/unicode.c: Fix flag error for switch from titlecase to lowercase.
 
-	* io.c (rb_f_open): fix typo.
+	* test/ruby/enc/test_case_mapping.rb: Tests for above error.
 
-Thu Nov  4 15:02:14 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+Wed May 25 01:13:55 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* ext/tk/lib/tk/variable.rb: forget to initialize instance_variables
-	  of TkVarAccess objects
+	* ext/openssl/ossl_pkey_ec.c (ec_key_new_from_group): Create a new
+	  EC_KEY on given EC group. Extracted from ossl_ec_key_initialize().
+	  (ossl_ec_key_s_generate): Added. Create a new EC instance and
+	  generate a random private and public key.
+	  (ossl_ec_key_initialize): Use ec_key_new_from_group().
+	  (Init_ossl_ec): Define the new method EC.generate. This change is
+	  for consistency with other PKey types.  [ruby-core:45541] [Bug #6567]
 
-Thu Nov  4 09:11:35 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* test/openssl/test_pkey_ec.rb: Test that EC.generate works.
 
-	* gc.c (gc_mark): enable GC stack checking.
+Wed May 25 00:37:16 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Thu Nov  4 03:11:33 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* ext/openssl/ossl_pkey_ec.c (ossl_ec_key_generate_key): Fix up RDoc.
+	  (Init_ossl_ec): Rename EC#generate_key to EC#generate_key!. Make the
+	  old name an alias of #generate_key!. This change is for consistency
+	  with other PKey types.  [ruby-core:45541] [Bug #6567]
 
-	* string.c (str_gsub): lock strings temporarily.  [ruby-dev:24687]
+	* test/openssl/test_pkey_ec.rb: Use EC#generate_key! instead of
+	  EC#generate_key.
 
-	* ext/socket/socket.c (s_recvfrom): tmplock input buffer.
-	  [ruby-dev:24705]
+Wed May 25 00:23:05 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Nov  3 22:32:12 2004  NARUSE, Yui  <naruse@ruby-lang.org>
+	* include/ruby/ruby.h (rb_scan_args_set): check the arity after
+	  adjusting argc for an option hash, for optimization in simpler
+	  cases.
 
-	* process.c: On NetBSD don't use setruid() and setrgid().
+Wed May 25 00:21:52 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Nov  3 22:24:17 2004  Daigo Moriwaki  <techml@sgtpepper.net>
+	* configure.in (XCFLAGS): merge flags only for ruby itself from
+	  ruby_cflags.
 
-	* lib/webrick/httpauth/digestauth.rb: use Base64.encode64 to
-	  avoid warnings.
+Tue May 24 22:04:15 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Wed Nov  3 17:19:59 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* ext/openssl/ossl_cipher.c (ossl_cipher_set_key, ossl_cipher_set_iv):
+	  Reject too long values as well as too short ones. Currently they
+	  just truncate the input but this would hide bugs and lead to
+	  unexpected encryption/decryption results.
 
-	* array.c (rb_ary_uniq_bang): do not push frozen string from hash
-	  table.  [ruby-dev:24695]
+	* test/openssl/test_cipher.rb: Test that Cipher#key= and #iv= reject
+	  Strings with invalid length.
 
-	* array.c (rb_ary_and): ditto.
+Tue May 24 21:32:21 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* array.c (rb_ary_or): ditto.
+	* ext/openssl/ossl_x509ext.c (ossl_x509ext_set_value): Use
+	  ASN1_OCTET_STRING_set() instead of M_ASN1_OCTET_STRING_set(). Macros
+	  prefixed by "M_" are discouraged to be used from outside OpenSSL
+	  library[1].
+	  (ossl_x509ext_get_value): Likewise, use ASN1_STRING_print() instead
+	  of M_ASN1_OCTET_STRING_print().
+	  [1] https://git.openssl.org/gitweb/?p=openssl.git;a=blob;f=CHANGES;h=bf61913d7b01212b4d8b2f3c13d71d645914f67c;hb=b6079a7835f61daa9fb2cbf9addfa86049523933#l878
 
-Wed Nov  3 17:13:02 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* ext/openssl/ossl.h: Include openssl/asn1.h instead of
+	  openssl/asn1_mac.h. It just includes openssl/asn1.h and defines some
+	  additional "M_" macros.
 
-	* io.c (pipe_open): fix compile error
+Tue May 24 18:52:11 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Nov  3 16:58:07 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* include/ruby/ruby.h (rb_scan_args_verify): verify the format to
+	  scan if no invalid chars and variable argument length matching,
+	  at the compile time if possible.
 
-	* ext/tk/lib/tk.rb: support to use different Tcl commands between
-	  configure and configinfo
+Tue May 24 17:18:46 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/tk/lib/font.rb: ditto.
+	* include/ruby/defines.h (ERRORFUNC, WARNINGFUNC): add fallback
+	  definitions.
 
-	* ext/tk/lib/itemconfig.rb: support to use different Tcl commands
-	  between item_configure and item_configinfo
+Tue May 24 16:37:43 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* ext/tk/lib/itemfont.rb: ditto.
+	* configure.in (ruby_cflags): separate from optflags [Bug #12409]
+	  -fexcess-precision=standard and -fp-model precise are set to this now.
 
-	* ext/tk/extconf.rb: install SUPPORT_STATUS
+	* configure.in (cflags): use ruby_cflags.
 
-	* ext/tk/lib/tkextlib: some bug fixes (see ext/tk/ChangeLog.tkextlib)
+Tue May 24 16:20:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Nov  3 16:30:41 2004  NARUSE, Yui  <naruse@ruby-lang.org>
+	* configure.in (ERRORFUNC, WARNINGFUNC): __error__ and __warning__
+	  attributes take a parenthesized string literal.
 
-	* ext/nkf: follow nkf 2.0.4
+Tue May 24 12:35:56 2016  URABE Shyouhei  <shyouhei@ruby-lang.org>
 
-Wed Nov  3 15:53:34 2004  Kouhei Sutou  <kou@cozmixng.org>
+	* common.mk: sort lines, and add missing dependencies suggested
+	  by tool/update-deps
 
-	* test/rss/test_maker_*.rb: added tests for RSS Maker.
+Mon May 23 21:33:36 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rss/maker.rb: added RSS Maker.
+	* include/ruby/missing.h (isfinite): move from numeric.c.
 
-	* lib/rss/maker/*.rb: ditto.
+Mon May 23 21:09:06 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Tue Nov  2 16:35:57 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* ext/openssl/ossl.c (Init_openssl): Avoid reference to unset global
+	  variable. ossl_raise() may be called before dOSSL is set. Since
+	  global variables default to 0 and the default value of dOSSL set in
+	  Init_openssl() is also Qfalse, there is no real issue but confusing.
+	  Patch by Bertram Scharpf <software@bertram-scharpf.de>
+	  [ruby-core:58264] [Bug #9101]
 
-	* ext/enumerator/enumerator.c (each_cons_i): pass copy of an
-	  internal consequent array.  [ruby-talk:118691]
+Mon May 23 20:32:16 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Tue Nov  2 16:05:21 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* ext/openssl/ossl_asn1.c, ext/openssl/ossl_bn.c,
+	  ext/openssl/ossl_cipher.c, ext/openssl/ossl_digest.c
+	  ext/openssl/ossl_engine.c, ext/openssl/ossl_ns_spki.c
+	  ext/openssl/ossl_pkcs12.c, ext/openssl/ossl_pkcs7.c
+	  ext/openssl/ossl_pkey.c, ext/openssl/ossl_pkey_ec.c
+	  ext/openssl/ossl_rand.c, ext/openssl/ossl_ssl.c
+	  ext/openssl/ossl_x509attr.c, ext/openssl/ossl_x509cert.c
+	  ext/openssl/ossl_x509ext.c, ext/openssl/ossl_x509store.c: Use
+	  StringValueCStr() where NUL-terminated string is expected.
 
-	* process.c (rb_f_fork): need to flush stdout and stderr before
-	  fork(2).  [ruby-talk:117715]
+Mon May 23 20:20:12 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Tue Nov  2 01:20:09 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* ext/bigdecimal/bigdecimal.c (isfinite): get rid of a warning on
+	  cygwin. [Bug #12417][ruby-core:75691]
 
-	* eval.c (proc_invoke): nail down dyna_var node when Proc object
-	  or continuation is created.  [ruby-dev:24671]
+Mon May 23 19:41:27 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Mon Nov  1 13:59:28 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
+	* ext/openssl/ossl_rand.c (ossl_rand_egd, ossl_rand_egd_bytes):
+	  RAND_egd{_bytes,}() return -1 on failure, not 0.
+	  Patch by cremno phobia <cremno@mail.ru>
+	  [ruby-core:63795] [Bug #10053]
+	  (ossl_pseudo_bytes): Similar, RAND_pseudo_bytes() may return 0 or
+	  -1 on failure.
 
-	* ext/extmk.rb (MANIFEST): do not use anymore, use extconf.rb instead.
+Mon May 23 15:52:07 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* ext/enumerator/extconf.rb, ext/fcntl/extconf.rb,
-	  ext/stringio/extconf.rb: added.
+	* ext/bigdecimal/bigdecimal.c (isfinite): isfinite does not always
+	  exist.  fixed build error on Windows introduced at r55123.
 
-	* MANIFEST, ext/**/MANIFEST: removed.
+Mon May 23 13:19:41 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* README.EXT, README.EXT.ja: remove MANIFEST stuff.
+	* include/ruby/ruby.h (rb_scan_args0): make compile error if the
+	  format is wrong or does not match with the variable argument
+	  length if possible.
 
-Mon Nov  1 01:14:52 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Mon May 23 12:47:09 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* io.c (rb_f_open): create copy of popen specifier.  [ruby-dev:24656]
+	* include/ruby/ruby.h (rb_scan_args0): raise fatal error if
+	  variable argument length does not match, it is a bug in the code
+	  which uses rb_scan_args, not a runtime error.
 
-Mon Nov  1 00:36:48 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
+Mon May 23 12:30:29 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* main.c (_stklen): move to gc.c.
+	* ext/bigdecimal/bigdecimal.c (GetVpValueWithPrec): consider
+	  non-finite float values not to raise FloatDomainError.
+	  [ruby-core:75682] [Bug #12414]
 
-Sun Oct 31 00:22:28 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Mon May 23 12:21:18 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* string.c (rb_str_locktmp): lock string temporarily.
+	* array.c (rb_ary_fill): suppress warnings: 'item' may be used
+	  uninitialized in this function
 
-	* string.c (str_independent): add tmplock check.
+Mon May 23 07:41:49 2016  Eric Wong  <e@80x24.org>
 
-	* io.c (io_write): lock output string temporarily.
-	  [ruby-dev:24649]
+	* dir.c (dir_close): update RDoc for 2.3 #close change
+	  [ruby-core:75679] [Bug #12413]
 
-	* io.c (io_write): use rb_str_locktmp().
+Sun May 22 20:01:21 2016  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
 
-	* io.c (read_all): ditto.
+	* lib/drb/timeridconv.rb: use finalizer trick instead of thread.
 
-Sat Oct 30 06:53:24 2004  Peter Vanbroekhoven  <peter.vanbroekhoven@cs.kuleuven.ac.be>
+	* test/drb/ut_timerholder.rb: ditto.
 
-	* eval.c (rb_eval): NODE_XSTR should pass copy of literal string.
+Sun May 22 17:25:18 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Sat Oct 30 00:19:40 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* test/ruby/enc/test_case_options.rb: adjust test class name
+	  to match file name
 
-	* enum.c (enum_sort_by): protect continuation jump in.
-	  [ruby-dev:24642]
+Sun May 22 17:24:07 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Fri Oct 29 21:27:51 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* rename test/ruby/enc/test_casing_options.rb to test_case_options.rb
+	  for consistency
 
-	* io.c (rb_io_check_initialized): new function to check uninitialized
-	  object.  [ruby-talk:118234]
+Sun May 22 17:06:55 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* file.c (rb_file_path), io.c (rb_io_closed): check if initialized.
+	* transcode.c (enc_arg, str_transcode_enc_args, econv_args):
+	  remove volatile, and add GC guards in callers.
+	  [ruby-core:75664] [Bug #12411]
 
-Fri Oct 29 10:00:30 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Sun May 22 16:27:00 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* eval.c (rb_thread_start_0): forget to free some memory chunks.
-	  [ruby-core:03611]
+	* ext/-test-/integer/core_ext.c: move testutil/integer.c.
 
-	* eval.c (ruby_cleanup): ruby_finalize_1 may cause exception,
-	  should be wrapped by PUSH_TAG/POP_TAG().  [ruby-dev:24627]
+	* test/lib/-test-/integer.rb: extract implementation details from
+	  test/unit/assertions.rb.  [Bug #12408]
 
-Thu Oct 28 08:42:02 2004  Tanaka Akira  <akr@m17n.org>
+Sun May 22 14:57:43 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* io.c (argf_forward): use ANSI style.
-	  (argf_read): call argf_forward with argv argument.
-	  [ruby-dev:24624]
+	* include/ruby/oniguruma.h: Extend OnigEncodingTypeDefine to define a
+	  new encoding primitive 'case_map' for case mapping
 
-Thu Oct 28 23:32:54 2004  akira yamada  <akira@ruby-lang.org>
+	* enc/utf-8.c, utf_16be/le.c, utf_32be/le.c:
+	  add onigenc_unicode_case_map as case_map primitive
 
-	* ext/zlib/zlib.c (zstream_detach_input): resets klass of z->input if
-	  z->input isn't nil.
+	* enc/ascii.c, big5.c, cp949.c, emacs_mule.c, euc_jp/kr/tw.c, gb18030.c,
+	  gbk.c, iso_8859_1/2/3/4/5/6/7/8/9/10/11/13/14/15/16.c, koi8_r/u.c,
+	  shift_jis.c, us_ascii.c, windows_1250/1251/1252.c:
+	  add onigenc_not_support_case_map as case_map primitive
 
-Thu Oct 28 23:19:31 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun May 22 14:45:45 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/extmk.rb: prefer relative path.  [ruby-talk:93037]
+	* regenc.h/c: Define new function onigenc_not_support_case_map
 
-Wed Oct 27 18:49:11 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
+Sun May 22 12:14:06 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* gc.c: prototype; rb_io_fptr_finalize() doesn't return any value
-	  at this version.
+	* include/ruby/ruby.h (rb_scan_args): use original rb_scan_args
+	  when fmt is dynamic.
 
-Wed Oct 27 17:27:45 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Sun May 22 11:41:12 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* gc.c (gc_sweep): recover ruby_in_compile variable.
+	* class.c (rb_scan_args): moved to bottom of the file to make the
+	  effect of `#undef rb_scan_args` the minimum.
 
-Wed Oct 27 09:17:30 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* include/ruby/ruby.h (rb_scan_args): overwrite only if GCC and
+	  optimized. Visual C++ 14 or later can compile it but make it
+	  conservative.
 
-	* string.c (str_gsub): use a string object for exception safeness.
-	  [ruby-dev:24601]
+Sat May 21 22:45:50 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Tue Oct 26 23:52:32 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* include/ruby/ruby.h (rb_scan_args): don't use ALWAYS_INLINE with
+	  `inline`.  if gcc needs this duplication, do in ALWAYS_INLINE macro.
 
-	* io.c (rb_io_getline): rs modification check should not interfere in the loop.
+Sat May 21 21:11:56 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Tue Oct 26 23:30:39 2004  Dave Thomas  <dave@pragprog.com>
+	* include/ruby/ruby.h (rb_scan_args): use __VA_ARGS__ instead of
+	  va_arg to allow compilers optimize more aggressive.
+	  https://gustedt.wordpress.com/2011/07/10/avoid-writing-va_arg-functions/
+	  rb_scan_args is now expected to be statically resolved.
 
-	* lib/rdoc/code_objects.rb (RDoc::Context::add_class_or_module):
-	  Restore correct :nopdoc: behavior with nested classes and modules.
+Sun May 22 02:41:52 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Tue Oct 26 18:21:29 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* ext/zlib/zlib.c: remove hacky macro introduced at r30437.
 
-	* string.c (RESIZE_CAPA): check string attribute before modifying
-	  capacity member of string structure.  [ruby-dev:24594]
+	* ext/zlib/zlib.c (gzfile_make_header): cast as long (instead of int).
 
-Tue Oct 26 11:33:26 2004  David G. Andersen  <dga@lcs.mit.edu>
+	* ext/zlib/zlib.c (gzfile_make_footer): ditto.
 
-	* ext/zlib/zlib.c (gzreader_gets): use memchr() to to gain
-	  performance.  [ruby-talk:117701]
+Sat May 21 21:07:18 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Tue Oct 26 10:56:55 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* configure.in (ALWAYS_INLINE): force compilers the function inlined.
 
-	* sprintf.c (rb_f_sprintf): raise ArgumentError for extra
-	  arguments, unless (digit)$ style used.
+Sat May 21 16:16:03 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Tue Oct 26 11:33:26 2004  David G. Andersen  <dga@lcs.mit.edu>
+	* ext/openssl/ossl_ssl.c (ossl_ssl_stop): Don't free the SSL struct
+	  here. Since some methods such as SSLSocket#connect releases GVL,
+	  there is a chance of use after free if we free the SSL from another
+	  thread. SSLSocket#stop was documented as "prepares it for another
+	  connection" so this is a slightly incompatible change. However when
+	  this sentence was added (r30090, Add toplevel documentation for
+	  OpenSSL, 2010-12-06), it didn't actually. The current behavior is
+	  from r40304 (Correct shutdown behavior w.r.t GC., 2013-04-15).
+	  [ruby-core:74978] [Bug #12292]
 
-	* ext/zlib/zlib.c (gzreader_gets): use memchr() to to gain
-	  performance.  [ruby-talk:117701]
+	* ext/openssl/lib/openssl/ssl.rb (sysclose): Update doc.
 
-Tue Oct 26 10:56:55 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* test/openssl/test_ssl.rb: Test this.
 
-	* sprintf.c (rb_f_sprintf): raise ArgumentError for extra
-	  arguments, unless (digit)$ style used.
+Sat May 21 14:41:14 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Mon Oct 25 18:35:39 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
+	* ext/openssl/ossl.c: [DOC] Fix SSL client example. The variable name
+	  was wrong. Patch by Andreas Tiefenthaler <at@an-ti.eu> (@pxlpnk).
+	  [GH ruby/openssl#32]
 
-	* win32/win32.c (isUNCRoot): should check NUL after '.'.
-	  [ruby-dev:24590]
+Sat May 21 14:25:38 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* win32/win32.c (isUNCRoot): fixed buffer overrun.
+	* ext/openssl/ossl_pkey_ec.c: rename PKey::EC#private_key? and
+	  #public_key? to #private? and #public? for consistency with other
+	  PKey types. Old names remain as alias.  [ruby-core:45541] [Bug #6567]
 
-Mon Oct 25 08:03:26 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/openssl/test_pkey_ec.rb (test_check_key): check private? and
+	  public? works correctly.
 
-	* eval.c (get_backtrace): ignore illegal backtrace.  [ruby-dev:24587]
+Sat May 21 12:40:36 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Sun Oct 24 00:41:09 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/openssl/lib/openssl/buffering.rb (read_nonblock, readpartial):
+	  Remove impossible EOFError raise. Patch by Zach Anker
+	  <zanker@squareup.com>.  [GH ruby/openssl#23]
 
-	* eval.c (rb_load, search_required, rb_require_safe, rb_require): use
-	  frozen shared string to avoid outside modification.  [ruby-dev:24580]
+Sat May 21 11:18:42 2016  Evgeni Golov  <evgeni@golov.de>
 
-Sat Oct 23 22:18:32 2004  Guy Decoux  <ts@moulon.inra.fr>
+	* lib/ipaddr.rb: [DOC] fix documentation of IN6MASK to mention
+	  IPv6.  [Fix GH-1349]
 
-	* eval.c (frame_free): Guy Decoux solved the leak problem.
-	  Thanks.  [ruby-core:03549]
+Sat May 21 11:12:53 2016  Dan Martinez  <dfm@razorwind.org>
 
-Sat Oct 23 00:20:55 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* io.c (Init_IO): [DOC] define dummy ARGF instead of ARGF.class to
+	  re-enable the generation of ARGF documentation.  [Fix GH-1358]
 
-	* ext/zlib/zlib.c (zstream_append_input): clear klass for z->input
-	  to avoid potential vulnerability.
+Sat May 21 11:07:29 2016  0x01f7  <souk.0x01f7@gmail.com>
 
-	* ext/zlib/zlib.c (zstream_run): always use zstream_append_input()
-	  to avoid SEGV.  [ruby-dev:24568]
+	* doc/syntax/methods.rdoc (Method Names): add proper closing tag.
+	  [Fix GH-1356]
 
-Fri Oct 22 12:02:28 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Sat May 21 09:26:28 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* eval.c (rb_alias): was warning for wrong condition.
-	  [ruby-dev:24565]
+	* configure.in (RUBY_CHECK_SETJMP): fix missing macro definition
+	  for the configured result.  fix up r55021.
 
-Fri Oct 22 10:36:37 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Sat May 21 00:36:32 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/webrick/httprequest.rb (WEBrick::HTTPRequest#meta_vars):
-	  should check if path_info is not nil.
+	* process.c (rb_execarg_commandline): build command line string
+	  from argument vector in rb_execarg.
+	  [ruby-core:75611] [Bug #12398]
 
-Fri Oct 22 00:22:31 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Fri May 20 23:25:42 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* ext/zlib/zlib.c (zstream_shift_buffer): should restore class
-	  field of a buffer.  [ruby-dev:24562]
+	* ext/openssl/ossl.c (ossl_pem_passwd_value): Added. Convert the
+	  argument to String with StringValue() and validate the length is in
+	  4..PEM_BUFSIZE. PEM_BUFSIZE is a macro defined in OpenSSL headers.
+	  (ossl_pem_passwd_cb): When reading/writing encrypted PEM format, we
+	  used to pass the password to PEM_def_callback() directly but it was
+	  problematic. It is not NUL character safe. And surprisingly, it
+	  silently truncates the password to 1024 bytes.  [GH ruby/openssl#51]
 
-Fri Oct 22 00:20:33 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/openssl/ossl.h: Add function prototype declaration of newly
+	  added ossl_pem_passwd_value().
 
-	* string.c (rb_str_include): should not treat char as negative value.
-	  [ruby-dev:24558]
+	* ext/openssl/ossl_pkey.c (ossl_pkey_new_from_data): Use
+	  ossl_pem_passwd_value() to validate the password String.
 
-Thu Oct 21 21:32:30 2004  IWATSUKI Hiroyuki  <don@na.rim.or.jp>
-
-	* lib/pstore.rb (PStore#transaction): Use the empty content when a
-	  file is not found.  [ruby-dev:24561]
-
-Thu Oct 21 19:06:15 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/httpresponse.rb (WEBrick::HTTPResponse#send_body_io):
-	  ensure to close @body. (http://bugs.debian.org/277520)
-
-Thu Oct 21 00:36:41 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_alias): should warn on method discarding.
-	  [ruby-dev:24546]
-
-	* ext/zlib/zlib.c (zstream_expand_buffer_into): hide internal
-	  string buffer by clearing klass.  [ruby-dev:24548]
-
-Wed Oct 20 19:45:13 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (str_gsub): 	reentrant check.  [ruby-dev:24432]
-
-	* backport all SEGV bug fixes from CVS HEAD.  [ruby-dev:24536]
-
-Wed Oct 20 04:17:55 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/dbm/dbm.c (fdbm_delete_if): should check if deleting element
-	  is a string.  [ruby-dev:24490]
-
-	* ext/sdbm/init.c (fsdbm_delete_if): ditto.
-
-Wed Oct 20 01:37:18 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* array.c (rb_ary_times): Array#* should return an instance of
-	  the class of right operand.  [ruby-dev:24526]
-
-	* ext/zlib/zlib.c (zstream_detach_buffer): should not expose
-	  class-less object to Ruby world. [ruby-dev:24530]
-
-	* eval.c (proc_dup): provide Proc#dup as well.  [ruby-talk:116915]
-
-	* eval.c (ruby_exec): stack marking position may be higher than
-	  expected.  thanks to Guy Decoux.  [ruby-core:03527]
-
-Tue Oct 19 22:43:12 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_rb.rb (RDoc::RubyParser::parse_attr): If
-	  we come across 'attr' in a context where it isn't
-	  followed by a symbol, just issue a warning.
-
-Tue Oct 19 20:41:37 2004  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole.c(ole_invoke): retrieve the result value when
-	  retrying the IDispatch::invoke.
-
-Tue Oct 19 17:24:11 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (read_all): block string buffer modification during
-	  rb_io_fread() by freezing it temporarily. [ruby-dev:24479]
-
-	* dir.c (rb_push_glob): block call at once the end of method.
-	  [ruby-dev:24487]
-
-	* ext/enumerator/enumerator.c (enum_each_slice): remove
-	  rb_gc_force_recycle() to prevent potential SEGV.
-	  [ruby-dev:24499]
-
-	* ext/zlib/zlib.c (zstream_expand_buffer): hide internal string
-	  buffer by clearing klass.  [ruby-dev:24510]
-
-Tue Oct 19 16:12:18 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/tkutil.c: backport from CVS HEAD
-
-Tue Oct 19 08:54:26 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* intern.h, object.c (rb_class_inherited_p): export.
-
-Tue Oct 19 08:46:57 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_str_upto): method result must be checked.  [ruby-dev:24504]
-
-	* eval.c (error_print): ditto.  [ruby-dev:24519]
-
-Mon Oct 18 23:37:05 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* marshal.c (r_object0): check inheritance by the internal function.
-	  [ruby-dev:24515]
-
-Mon Oct 18 15:58:01 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* range.c (range_step, range_each): need cast.
-
-Fri Oct 29 16:34:19 2004  Daiki Ueno  <ueno@unixuser.org>
-
-	* misc/ruby-mode.el (ruby-parse-partial): Parse the rest of the
-	  line after opening heredoc identifier.  [ruby-dev:24635]
-
-Mon Oct 18 07:26:21 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_file_truncate): discard read buffer before truncation.
-	  [ruby-dev:24197]
-
-Mon Oct 18 02:11:21 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/config.rb (WEBrick::Config::General): add default values:
-	  - WEBrick::Config[:DoNotReverseLookup]
-	  - WEBrick::Config[:RequestCallback] (it used as an alias of
-	    :RequestHandler in WEBrick::HTTPServer#run)
-	  - WEBrick::Config::FileHandler[:AcceptableLanguages]
-
-	* lib/webrick/httpservlet/filehandler.rb
-	  (WEBrick::HTTPServlet::FileHandler#set_filename): search files
-	  having suffix of language-name which Accept-Language header field
-	  includes if :AcceptableLanguages options is present.
-
-	* lib/webrick/httpservlet/filehandler.rb
-	  (WEBrick::HTTPServlet::FileHandler#get_servlet): new method to
-	  search servlet correspond to the suffix of filename.
-
-	* lib/webrick/httprequest.rb: add attributes access methods: accept,
-	  accept_charset, accept_encoding, accept_language, content_length
-	  and content_type.
-
-	* lib/webrick/httpresponse.rb: add attribute access methods:
-	  content_length, content_length=, content_type and content_type=.
-
-	* lib/webrick/httputils.rb (WEBrick::HTTPUtils.mime_types):
-	  use the second suffix to detect media type. (the first suffix
-	  may be a language name.)
-
-	* lib/webrick/httputils.rb (WEBrick::HTTPUtils.parse_qvalues):
-	  add method to parse Accept header field. it returns an Array of
-	  values sorted by the qvalues.
-
-Mon Oct 18 02:04:11 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/httpserver.rb (WEBrick::HTTPServer#virtual_host): new
-	  method to register virtual hosting servers.
-
-	* lib/webrick/server.rb (WEBrick::GenericServer#accept): call
-	  do_not_reverse_lookup for each socket if :DoNotReverseLookup
-	  is set.  [ruby-core:02357]
-
-Mon Oct 18 00:42:45 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/socket/socket.c (sock_s_getservbyaname): protocol string
-	  might be altered.  [ruby-dev:24503]
-
-	* string.c (rb_str_upto): check if return value from succ is a
-	  string.  [ruby-dev:24504]
-
-Sun Oct 17 23:03:48 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/timer.rb: TkTimer#start and restart accept a block
-
-Sun Oct 17 13:05:04 2004  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/win32ole.c (fole_func_methods): correct argument mismatch.
-	* ext/win32ole/win32ole.c (fole_get_methods): ditto.
-	* ext/win32ole/win32ole.c (fole_put_methods): ditto.
-	* ext/win32ole/tests/testWIN32OLE.rb: add test for WIN32OLE#ole_func_methods
-	  WIN32OLE#ole_get_methods, WIN32OLE#ole_put_methods
-
-Sat Oct 16 14:45:28 2004  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/0.9.rb (RSS::Rss#to_s): removed garbage.
-
-Sat Oct 16 13:42:49 2004  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/: untabified.
-	* test/rss/: untabified.
-	* lib/rss/0.9.rb (RSS::Rss#to_s): inent -> indent.
-
-Sat Oct 16 13:34:56 2004  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss: supported prety print.
-	* test/rss/test_1.0.rb: added test for calculating default indent size.
-
-Fri Oct 15 18:04:35 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/timer.rb: TkTimer.new(interval, loop){ ... } is
-	  acceptable. Add TkTimer.start ( == new + start ).
-
-Fri Oct 15 12:43:09 2004  Tanaka Akira  <akr@m17n.org>
-
-	* eval.c (Init_stack): make prototype declaration consistent with
-	  the definition in gc.c.
-
-Thu Oct 14 14:34:01 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* io.c (MODE_BINMODE, MODE_BINARY): fixed reversed condition.
-
-Thu Oct 14 13:33:59 2004  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb: added link to Tutorial.
-
-Mon Oct 11 13:48:20 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/*: untabify
-
-Sun Oct 10 12:32:08 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_rb.rb (RDoc::parse_require): Allow 'require'
-	  to be used as a variable name
-
-Sat Oct  9 21:23:37 2004  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/converter.rb: changed to try to use Iconv for default
-	  conversion.
-
-	* lib/rss/rss.rb: 0.0.9 -> 0.1.0.
-
-Sat Oct  9 19:50:36 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (rb_io_getline): should not treat char as negative value.
-	  [ruby-dev:24460]
-
-Fri Oct  8 09:49:32 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* pack.c (pack_pack): pointer modification check before each
-	  iteration.  [ruby-dev:24445]
-
-Fri Oct  8 01:13:05 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/optiondb.rb: make it more secure
-
-Thu Oct  7 23:47:57 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/scrollbar.rb: When 'set' operation, a scrollbar
-	  cannot propagate view port information from the source widget
-	  (that calls 'set') to other assigned widgets.
-
-Thu Oct  7 17:36:25 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: When CHILDKILLED and so on, Tk.errorCode returns
-	  a Fixnum for 2nd element (it's pid) of the return value.
-
-Thu Oct  7 12:55:04 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (io_read): should freeze buffer before thread context
-	  switch. [ruby-dev:24442]
-
-	* pack.c (pack_unpack): string conversion should at the top of the
-	  method.  [ruby-dev:24439]
-
-	* io.c (io_read): buffer should be frozen only after the length
-	  check.  [ruby-dev:24440]
-
-Thu Oct  7 02:56:43 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/stringio/stringio.c: use FMODE_APPEND.
-
-Thu Oct  7 01:05:33 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: add Tk.errorInfo and Tk.errorCode
-
-Thu Oct  7 00:08:37 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (rb_io_s_sysopen): preserve path in the buffer allocated by
-	  ALLOCA_N() to prevent modification.  [ruby-dev:24438]
-
-Wed Oct  6 09:21:00 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (rb_io_mode_flags): preserve append mode flag.
-	  [ruby-dev:24436]
-
-	* io.c (rb_io_modenum_mode): do not use external output buffer.
-
-	* string.c (rb_str_justify): differ pointer retrieval to prevent
-	  padding string modification.  [ruby-dev:24434]
-
-	* range.c (range_each_func): allow func to terminate loop by
-	  returning RANGE_EACH_BREAK.
-
-	* range.c (member_i): use RANGE_EACH_BREAK. [ruby-talk:114959]
-
-Mon Oct  4 14:04:14 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (rb_file_open_internal, rb_io_reopen): fname might be altered
-	  while GC.  [ruby-dev:24408]
-
-Mon Oct  4 12:53:45 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/optiondb.rb: support definition of command
-	  resources on widgets
-
-	* ext/tk/lib/tk/image.rb: bug fix
-
-Sun Oct  3 21:20:03 2004  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/imap.rb (TEXT_REGEXP): allow 8-bit characters for the german
-	  version of Microsoft Exchange Server. (backported from HEAD)
-
-	* lib/net/imap.rb (RTEXT_REGEXP): ditto.
-
-	* lib/net/imap.rb (CTEXT_REGEXP): ditto.
-
-Sat Oct  2 20:34:22 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* node.h (NEW_DVAR): extra semicolon.
-
-Sat Oct  2 00:42:20 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* marshal.c (r_byte): retrieve pointer from string value for each
-	  time.  [ruby-dev:24404]
-
-	* marshal.c (r_bytes0): ditto.
-
-	* enum.c (sort_by_i): re-entrance check added.  [ruby-dev:24399]
-
-	* io.c (io_read): should freeze all reading buffer.
-	  [ruby-dev:24400]
-
-	* string.c (rb_str_sum): should use bignums when bits is greater
-	  than or equals to sizeof(long)*CHAR_BITS. [ruby-dev:24395]
-
-	* eval.c (specific_eval): defer pointer retrieval to prevent
-	  unsafe sourcefile string modification.  [ruby-dev:24382]
-
-	* eval.c (specific_eval): defer pointer retrieval to prevent
-	  unsafe sourcefile string modification.  [ruby-dev:24382]
-
-	* string.c (rb_str_sum): wrong cast caused wrong result.
-	  [ruby-dev:24385]
-
-	* enum.c (enum_sort_by): hide temporary array from
-	  ObjectSpace.each_object.  [ruby-dev:24386]
-
-	* string.c (rb_str_sum): check was done with false pointer.
-	  [ruby-dev:24383]
-
-	* string.c (rb_str_sum): string may be altered.  [ruby-dev:24381]
-
-Mon Oct 11 17:51:34 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (rb_io_popen): get mode string via rb_io_flags_mode() to
-	  avoid mode string modification.  [ruby-dev:24454]
-
-	* io.c (rb_io_getline_fast): should take delim as unsigned char to
-	  distinguish EOF and '\377'.  [ruby-dev:24460]
-
-	* io.c (rb_io_getline): add check for RS modification.
-	  [ruby-dev:24461]
-
-	* enum.c (enum_sort_by): use qsort() directly instead using
-	  rb_iterate().  [ruby-dev:24462]
-
-	* enum.c (enum_each_with_index): remove rb_gc_force_recycle() to
-	  prevent access to recycled object (via continuation for
-	  example).  [ruby-dev:24463]
-
-Fri Oct  1 11:40:14 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_f_eval): defer pointer retrieval to prevent unsafe
-	  sourcefile string modification.  [ruby-dev:24373]
-
-	* io.c (io_read): block string buffer modification during
-	  rb_io_fread() by freezing it temporarily. [ruby-dev:24366]
-
-	* io.c (rb_io_s_popen): mode argument may be altered.
-	  [ruby-dev:24375]
-
-	* file.c (rb_file_s_basename): ext argument may be altered.
-	  [ruby-dev:24377]
-
-	* enum.c (enum_sort_by): use NODE instead of 2 element arrays.
-	  [ruby-dev:24378]
-
-	* string.c (rb_str_chomp_bang): StringValue() may change the
-	  receiver.  [ruby-dev:24371]
-
-Fri Oct  1 11:25:20 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/grid.rb: revive TkGrid.grid
-
-	* ext/tk/lib/tk/pack.rb: revive TkPack.pack
-
-	* ext/tk/lib/tk/place.rb: revive TkPlace.place
-
-Thu Sep 30 00:50:44 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c (ip_init): bug fix
-
-	* ext/tk/tkutil.c (get_eval_string_core): accept a Regexp object
-
-	* ext/tk/lib/multi-tk.rb: fix bug on 'exit' operation
-
-	* ext/tk/lib/tk/text.rb: 'tksearch' accepts a Regexp object as a
-	  matting pattern argument
-
-Wed Sep 29 10:58:07 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* enum.c (sort_by_i): internally used object must not be changed
-	  outside.  [ruby-dev:24368]
-
-Mon Sep 27 13:46:45 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* intern.h, struct.c (rb_struct_s_members, rb_struct_members): public
-	  accessors.  [ruby-dev:24342]
-
-	* marshal.c (w_object, r_object0): use accessors.
-
-Mon Sep 27 09:14:03 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/socket/socket.c (s_accept): don't retry for EWOULDBLOCK.
-	  [ruby-talk:113807]
-
-Fri Sep 24 16:09:42 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (proc_invoke): propagate DVAR_DONT_RECYCLE on termination
-	  to avoid double call to rb_gc_force_recycle(). [ruby-dev:24311]
-
-Fri Sep 24 08:29:45 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* array.c (rb_ary_subseq): original object might be modified after
-	  sharing data creation.  [ruby-dev:24327]
-
-	* array.c (rb_ary_replace): ditto.
-
-	* array.c (ary_make_shared): freeze shared array. [ruby-dev:24325]
-
-	* struct.c (struct_members): always check struct size and size of
-	  members list in the class.  [ruby-dev:24320]
-
-Thu Sep 23 09:29:14 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (rb_str_sub_bang): check if string is not modified
-	  during iteration.  [ruby-dev:24315]
-
-	* hash.c (rb_hash_rehash): replace st_foreach() by its deep
-	  checking counterpart.  [ruby-dev:24310]
-
-Wed Sep 22 13:38:12 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* hash.c (rb_hash_rehash): add iteration check.  [ruby-dev:24301]
-
-	* st.c (st_foreach): add deep check.
-
-Wed Sep 22 13:06:14 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (rb_w32_call_handler): workaround for Ctrl-C.
-	  merge from HEAD.
-
-Wed Sep 22 00:11:12 2004  Dave Thomas  <dave@pragprog.com>
-
-	* process.c: Add documentation for fork()
-
-Wed Sep 22 09:04:41 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* array.c (rb_ary_collect_bang): element size might change during
-	  comparison.  [ruby-dev:24300]
-
-	* array.c (rb_ary_reject_bang): ditto. [ruby-dev:24300]
-
-	* array.c (rb_ary_eql): ditto. [ruby-dev:24300]
-
-Tue Sep 21 18:29:49 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* array.c (rb_ary_equal): merge miss.
-
-	* array.c (rb_ary_uniq_bang): element size might change during
-	  comparison.  [ruby-dev:24298]
-
-Mon Sep 20 00:24:19 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* enum.c (enum_sort_by): do not use qsort directly.  use
-	  rb_ary_sort_bang() instead.  [ruby-dev:24291]
-
-	* enum.c (enum_sort_by): pedantic type check added.
-	  [ruby-dev:24291]
-
-	* hash.c (rb_hash_foreach_iter): check iter_lev after each
-	  iteration.  [ruby-dev:24289]
-
-	* array.c (rb_ary_and): element size might change during
-	  comparison.  [ruby-dev:24290]
-
-	* array.c (rb_ary_or): ditto. [ruby-dev:24292]
-
-	* array.c (rb_ary_equal): wrong fix. [ruby-dev:24286]
-
-Sat Sep 18 15:02:22 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* array.c (rb_ary_equal): element size might change during
-	  comparison.  [ruby-dev:24254]
-
-	* array.c (rb_ary_diff): ditto. [ruby-dev:24274]
-
-	* array.c (rb_ary_select): ditto. [ruby-dev:24278]
-
-	* array.c (rb_ary_delete): ditto. [ruby-dev:24283]
-
-	* array.c (rb_ary_rindex): ditto. [ruby-dev:24275]
-
-	* array.c (rb_ary_initialize): element size might change during
-	  initializing block.  [ruby-dev:24284]
-
-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
-	  direcotry or within block.  thanks to Johan Holmberg
-	  <holmberg@iar.se> [ruby-core:03446]
-
-Fri Sep 17 20:20:27 2004  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/fileutils.rb (mkdir_p): backport from CVS HEAD 1.45. [ruby-core:03420]
-
-Fri Sep 17 17:11:08 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* array.c (rb_ary_delete): element comparison might change array
-	  size. [ruby-dev:24273]
-
-	* file.c (rb_file_truncate): clear stdio buffer before truncating
-	  the file.  [ruby-dev:24191]
-
-	* ext/digest/digest.c: use rb_obj_class() instead of CLASS_OF
-	  which might return singleton class.  [ruby-dev:24202]
-
-Fri Sep 17 16:07:09 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/multi-tk.rb: improve exit operation
-
-Fri Sep 17 15:01:57 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c: fix SEGV when (thread_)vwait or
-	  (thread_)tkwait
-
-	* ext/tk/lib/tk.rb: add alias wait_window to wait_destroy
-
-	* ext/tk/lib/multi-tk.rb: support calling 'mainloop' on slave
-	  interpreters (however, the 'real' eventloop must be run on the
-	  Default Master IP)
-
-	* ext/tk/lib/remote-tk.rb: follow the changes of ext/tk/lib/multi-tk.rb
-
-	* ext/tk/sample/remote-ip_sample2.rb: ditto
-
-	* ext/tk/sample/tkoptdb-safeTk.rb: ditto
-
-Thu Sep 16 18:12:32 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/cgi.rb (WEBrick::CGI#start): should set REMOTE_USER
-	  to request.user attribute.
-
-	* lib/webrick/httpservlet/filehandler.rb
-	  (WEBrick::HTTPServlet::FileHandler#initialize): should expand
-	  the pathname of document root directory.
-
-Thu Sep 16 15:49:28 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (rb_str_intern): protect string argument from GC.
-	  [ruby-core:03411]
-
-Wed Sep 15 20:22:23 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/sample/tkoptdb-safeTk.rb: fix a bug depend on the changes
-	  of MultiTkIp
-
-Tue Sep 14 23:54:11 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/multi-tk.rb: MultiTkIp#eval_string was en-bugged by
-	  the previous changes.
-
-Tue Sep 14 23:45:44 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/ri/ri_formatter.rb (RI::TextFormatter::TextFormatter.for):
-	  Add Eric Hodel's simpleformatter.
-
-Tue Sep 14 16:59:37 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c: fix SEGV
-
-	* ext/tk/lib/multi-tk.rb: improve safe-level handling of argument proc
-
-	* ext/tk/sample/multi-ip_sample.rb: rename of old 'safe-tk.rb'
-
-	* ext/tk/sample/safe-tk.rb: new sample script
-
-Tue Sep 14 00:15:15 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* ext/zlib/zlib.c: backported from HEAD.
-
-Mon Sep 13 19:16:33 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* eval.c (blk_copy_prev): need frame_dup().  [ruby-dev:24103]
-
-Mon Sep 13 16:23:27 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/multi-tk.rb: MultiTkIp.new_master and new_slave accept
-	  safe-level value argument
-
-Mon Sep 13 10:20:45 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* object.c (nil_inspect): fix typo.
-
-Mon Sep 13 01:03:02 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c: improve control of preserv/release tcltkip
-
-	* ext/tcltklib/tcltklib.c: store original 'exit' command
-
-	* ext/tk/tkutil.c: fix(?) SEGV
-
-Sun Sep 12 23:46:23 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* util.c (ruby_strdup): remove unnecessary code. (xmalloc never
-	  returns NULL.)
-
-	* util.c (ruby_getcwd): fix memory leak on failure.
-
-Sun Sep 12 02:41:58 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c: add TclTkIp#allow_ruby_exit? and
-	  allow_ruby_exit=
-
-	* ext/tk/lib/multi-tk.rb: ditto.
-
-	* ext/tk/lib/remote-tk.rb: ditto.
-
-	* ext/tcltklib/MANUAL.euc: ditto.
-
-	* ext/tcltklib/MANUAL.eng: ditto.
-
-	* ext/tcltklib/tcltklib.c: fix some reasons of SEGV
-
-	* ext/tk/tkutil.c: ditto.
-
-	* ext/tk/lib/multi-tk.rb: ditto.
-
-	* ext/tk/lib/tk/timer.rb: ditto.
-
-Sat Sep 11 16:09:46 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_rb.rb: Fix up cross-file class merging.
-
-Fri Sep 10 20:20:53 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/tcltklib/tcltklib.c (lib_merge_tklist): fix suspicious
-	  pointer conversion.
-
-Fri Sep 10 02:43:54 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/generators/template/kilmer.rb: James Buck's
-	  patch for call-seq.
-
-Thu Sep  9 13:58:56 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c (ip_init): change flag value for setting
-	  'argv' and 'argv0' variable
-
-	* ext/tk/lib/remote-tk.rb: follow changes of multi-tk.rb
-
-Thu Sep  9 11:46:18 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_c.rb (RDoc::C_Parser::do_classes): Allow
-	  spaces aroun parameter to define_method_under (James Buck)
-
-Wed Sep  8 18:44:03 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/stringio/stringio.c (strio_write): zero fill a gap if exsts.
-	  [ruby-dev:24190]
-
-Wed Sep  8 15:19:49 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c (ip_init): cannot create a IP at level 4
-
-	* ext/tk/lib/multi-tk.rb: improve 'exit' operation, security check,
-	  and error treatment
-
-	* ext/tk/lib/multi-tk.rb: allow a trusted slave IP to create slave IPs
-
-	* ext/tk/lib/tk/listbox.rb: add TkListbox#value, value=, clear,	and
-	  erase
-
-	* ext/tk/lib/tk/text.rb: add TkText#clear and erase
-
-Tue Sep  7 15:17:49 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/socket/socket.c (ruby_connect): break immediately if a
-	  socket is non-blocking.  [ruby-talk:111654]
-
-Mon Sep  6 11:08:50 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/tk/lib/tk/menu.rb(TkOptionMenubutton#insert): call correct method
-
-Mon Sep  6 11:00:47 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* dir.c (dir_s_chdir): the patch to shut up false warning when
-	  exception occurred within a block.  a patch was given from Johan
-	  Holmberg <holmberg at iar.se>.  [ruby-core:03292]
-
-Mon Sep  6 07:51:42 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (cvar_cbase): singletons should refer outer cvar scope.
-	  [ruby-dev:24223]
-
-	* eval.c (rb_load): should preserve previous ruby_wrapper value.
-	  [ruby-dev:24226]
-
-Sat Sep  4 01:14:57 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (cvar_cbase): class variables cause SEGV in
-	  instance_eval() for fixnums and symbols. [ruby-dev:24213]
-
-Fri Sep  3 17:47:58 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* struct.c (make_struct): remove redefining constant when
-	  conflict.  [ruby-dev:24210]
-
-Fri Sep  3 11:31:44 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: Tk.after makes TkCore::INTERP.tk_cmd_tbl grow
-	  [ruby-dev:24207]
-
-Fri Sep  3 02:12:48 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c: fix typo [ruby-talk:111266]
-
-	* ext/tk/lib/tk/text.rb: fix typo
-
-	* ext/tk/lib/multi-tk.rb: improve safe-level treatment on slave IPs
-
-Fri Sep  3 01:54:20 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb: already built-in libraries satisfy dependencies.
-	  [ruby-dev:24028]
-
-Thu Sep  2 11:36:20 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* eval.c (rb_obj_instance_eval): backported from HEAD.
-
-Wed Sep  1 21:18:25 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/tk/lib/tk/spinbox.rb: fix typo
-
-Tue Aug 31 18:24:04 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/tk/tkutil.c (cbsubst_init): fix memory leak
-
-	* ext/tk/tkutil.c (cbsubst_get_all_subst_keys): fix SEGV
-
-Tue Aug 31 16:04:22 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c (ip_delete): when a tcltkip is deleted,
-	  destroy its root widget
-
-Tue Aug 31 12:30:36 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c (del_root): fix SEGV
-
-Mon Aug 30 23:11:06 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/ri/ri_driver.rb (and others): ri now merges documentation
-	  if it finds the same class in multiple places.
-
-Mon Aug 30 22:40:30 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/multi-tk.rb: 'restart' method accepts arguments
-
-Mon Aug 30 21:50:14 2004  Dave Thomas  <dave@pragprog.com>
-
-	* object.c: Add RDoc for Module.included.
-
-Mon Aug 30 15:10:46 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* configure.in (GNU/k*BSD): fixed FTBFS on GNU/k*BSD. [ruby-dev:24051]
-
-Mon Aug 30 11:29:35 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (CreateChild): strip trailing spaces. [ruby-dev:24143]
-	  merge from HEAD.
-
-Sun Aug 29 14:08:56 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c: compile error on bcc32 [ruby-dev:24081]
-
-	* ext/tk/lib/multi-tk.rb: MultiTkIp#eval_string does not work
-
-Sat Aug 28 23:04:41 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* bignum.c (rb_big_and): protect parameters from GC.
-	  [ruby-talk:110664]
-
-Thu Aug 26 04:38:29 2004  Dave Thomas  <dave@pragprog.com>
-
-	* eval.c (return_jump): Minor typo in error message. Now reads
-	  "return can't jump across threads".
-
-Tue Aug 24 17:30:00 2004  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/cgi/session.rb (CGI::Session::FileStore#initialize): do not
-	  use a session id as a filename. (backported from HEAD)
-
-	* lib/cgi/session/pstore.rb (CGI::Session::PStore#initialize): ditto.
-
-	* lib/cgi/session/pstore.rb (CGI::Session::PStore#initialize): use
-	  Dir::tmpdir. (backported from HEAD)
-
-Tue Aug 24 14:40:16 2004  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/cgi/session.rb (CGI::Session::FileStore#initialize): untaint
-	  session id after check. (backported from HEAD)
-
-Tue Aug 24 09:09:01 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_x509attr.c (ossl_x509attr_initialize): d2i
-	  functions may replace the pointer indicated by the first argument.
-
-	* ext/openssl/ossl_x509ext.c (ossl_x509ext_initialize): ditto.
-
-	* ext/openssl/ossl_x509name.c (ossl_x509name_initialize): ditto.
-
-Mon Aug 23 14:04:51 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_ssl.c (ossl_ssl_read):
-	  - should return an empty string if specified length to read is 0.
-	  - should check for pending data and wait for fd before reading.
-	  - call underlying IO's sysread if SSL session is not started.
-	  [ruby-dev:24072], [ruby-dev:24075]
-
-	* ext/openssl/ossl_ssl.c (ossl_ssl_write):
-	  - call underlying IO's syswrite if SSL session is not started.
-
-	* ext/openssl/ossl_ssl.c (ossl_ssl_pending): new method
-	  OpenSSL::SSL#pending.
-
-	* ext/openssl/lib/openssl/buffering.rb: should not use select.
-
-Mon Aug 23 12:40:56 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* lib/resolv.rb (Config.default_config_hash): when multiple domains
-	  are set, Win32::Resolv.get_resolv_info returns Array.
-
-Sun Aug 22 01:15:31 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/httpproxy.rb (WEBrick::HTTPProxyServer#proxy_connect):
-	  should call :ProxyContentHandler before finishing CONNECT.
-
-Sat Aug 21 06:41:16 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/tcltklib/extconf.rb (find_tcl, find_tk): find stub library.
-
-	* lib/mkmf.rb (arg_config, with_config): deal with '-' and '_'
-	  uniformly.  [ruby-dev:24118]
-
-Thu Aug 19 16:29:45 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: Fail to treat a hash value of 'font' option.
-
-	* ext/tk/lib/tk.rb: bindinfo cannot return '%' substiturion infomation.
-
-	* ext/tk/lib/menu.rb: typo bug.
-
-Thu Aug 19 15:15:24 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* dir.c (free_dir): fix memory leak.  reported by yamamoto
-	  madoka.
-
-Thu Aug 19 11:00:00 2004  Akiyoshi, Masamichi  <masamichi.akiyoshi@hp.com>
-
-	* dln.c (dln_load): Modify to call lib$find_image_symbol for VMS.
-	* io.c (rb_io_fwrite): Use fputc() for VMS non-stream file.
-
-Thu Aug 19 06:07:45 2004  why the lucky stiff  <why@ruby-lang.org>
-
-	* ext/syck/token.c: re2c no longer compiled with bit vectors.  caused
-	  problems for non-ascii characters. [ruby-core:03280]
-	* ext/syck/implicit.c: ditto.
-	* ext/syck/bytecode.c: ditto.
-
-	* lib/yaml/baseemitter.rb: folding now handles double-quoted strings,
-	  fixed problem with extra line feeds at end of folding, whitespace
-	  opening scalar blocks.
-
-	* lib/yaml/rubytypes.rb: subtelties in handling strings with
-	  non-printable characters and odd whitespace patterns.
-
-Wed Aug 18 23:41:33 2004  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/net/protocol.rb (rbuf_fill): OpenSSL::SSL::SSLSocket has its own
-	  buffer, select(2) might not work. [ruby-dev:24072]
-
-Wed Aug 18 17:10:12 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* ext/tcltklib/stubs.c (ruby_tcltk_stubs): need to call
-	  Tcl_FindExecutable() for Tcl/Tk 8.4.
-
-Wed Aug 18 12:52:55 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_obj_instance_eval): evaluates under special singleton
-	  classes as for special constants.
-
-Tue Aug 17 17:20:59 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (rb_io_reopen): should clear allocated OpenFile.  pointed
-	  out by Guy Decoux. [ruby-core:03288]
-
-Tue Aug 17 01:36:32 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/usage.rb: Remove extra indent. Tidy 'ri' option
-	  parsing so RDoc::usage plays better with OptionParser.
-
-Sat Aug 14 13:09:10 2004  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/fileutils.rb: backport from CVS HEAD (rev1.44).
-
-	* lib/fileutils.rb: cp_r should copy symlink itself, except cp_r
-	  root.
-
-	* lib/fileutils.rb: new option mv :force.
-
-	* lib/fileutils.rb: new module FileUtils::DryRun.
-
-Sat Aug 14 02:48:16 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/usage.rb: Added. Allows command line programs
-	  to report usage using their initial RDoc comment.
-
-Fri Aug 13 13:23:17 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/httputils.rb (WEBrick::HTTPUtils.parse_range_header):
-	  fix regex for range-spec.
-
-	* lib/webrick/httpservlet/filehandler.rb
-	  (WEBrick::HTTPServlet::DefaultFileHandler#make_partial_content):
-	  multipart/byteranges response was broken.
-
-	* lib/webrick/httpservlet/erbhandler.rb
-	  (WEBrick::HTTPServlet::ERBHandler#do_GET): should select media type
-	  by suffix of script filename.
-
-	* lib/xmlrpc/server.rb: refine example code.
-
-Wed Aug 11 17:17:50 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* configure.in (RPATHFLAG): stop setting RPATHFLAG on Interix.
-
-Sun Aug  8 00:43:31 2004  why the lucky stiff  <why@ruby-lang.org>
-
-	* lib/implicit.c: added sexagecimal float#base60.
-
-	* ext/syck/rubyext.c (yaml_org_handler): ditto.
-
-	* lib/token.c: indentation absolutely ignored when processing flow
-	  collections.  plain scalars are trimmed if indentation follows in
-	  an ambiguous flow collection.
-
-Sat Aug  7 00:50:01 2004  Tanaka Akira  <akr@m17n.org>
-
-	* ext/zlib/zlib.c: Zlib::GzipReader#read(0) returns "" instead of nil.
-
-Tue Aug  3 13:49:20 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/namespace.rb: bug fix
-
-	* ext/tk/lib/tkextlib/treectrl/tktreectrl.rb: add Tk::TreeCtrl.loupe
-
-Mon Aug  2 18:04:21 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/msgcat.rb (set_translation): bug fix (fail to set
-	  trans_str to the same as src_str when trans_str is not given.)
-
-Mon Aug  2 11:53:06 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/code_objects.rb (RDoc::Context::find_symbol): Fix infinite recursion
-	  looking up some top level symbols (batsman)
-
-Mon Aug  2 11:48:29 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_c.rb (RDoc::C_Parser::do_methods): Allow '.'s in
-	  variable names to support SWIG generated files (Hans Fugal)
-
-Sat Jul 31 17:40:16 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* misc/ruby-mode.el (ruby-expr-beg, ruby-parse-partial,
-	  ruby-calculate-indent, ruby-move-to-block, ruby-forward-sexp,
-	  ruby-backward-sexp): keywords must match word-wise.
-
-Sat Jul 31 05:47:37 2004  why the lucky stiff  <why@ruby-lang.org>
-
-	* lib/yaml.rb (YAML::load_file, YAML::parse_file): added.
-
-	* lib/yaml/rubytypes.rb: exceptions were using an older
-	  YAML.object_maker. [ruby-core:03080]
-
-	* ext/syck/token.c (sycklex_yaml_utf8): using newline_len to
-	  handline CR-LFs.  "\000" was showing up on folded blocks which
-	  stopped at EOF.
-
-	* ext/syck/token.c: re2c compiled with bit vectors now.
-	* ext/syck/implicit.c: ditto.
-	* ext/syck/bytecode.c: ditto.
-
-Fri Jul 30 16:10:54 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c (lib_fromUTF8_core): raise ArgumentError when
-	  the unknown encoding name is given.
-
-	* ext/tcltklib/tcltklib.c (lib_toUTF8_core): ditto.
-
-	* ext/tk/lib/tk.rb (Tk::Encoding.encoding_convertfrom): bug fix.
-
-	* ext/tk/lib/tk.rb (Tk::Encoding.encoding_convertto): ditto.
-
-Wed Jul 28 18:59:17 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/cgi.rb (CGI::initialize): remove at_exit code for CGI_PARAMS
-	  and CGI_COOKIES.  they will no longer be used.
-
-Wed Jul 28 01:04:44 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* gc.c (run_final): wrong order of data. [ruby-dev:23984]
-
-Tue Jul 27 07:05:04 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_eval): copy on write for argument local variable
-	  assignment.
-
-	* eval.c (assign): ditto.
-
-	* eval.c (rb_call0): update ruby_frame->argv with the default
-	  value used for the optional arguments.
-
-	* object.c (Init_Object): "===" calls rb_obj_equal() directly.
-	  [ruby-list:39937]
-
-Mon Jul 26 11:22:55 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/httputils.rb (WEBrick::HTTPUtils.escape): should
-	  escape space.
-
-Sun Jul 25 11:05:21 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* win32/win32.{h,c} (rb_w32_{f,fd,fs}open): workaround for bcc32's
-	  {f,fd,fs}open bug. set errno EMFILE and EBADF. [ruby-dev:23963]
-
-Sat Jul 24 13:32:47 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* range.c (rb_range_beg_len): returns Qnil only when "beg" points
-	  outside of a range.  No boundary check for "end".
-
-Fri Jul 23 16:40:25 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* gc.c (define_final): should not disclose NODE* to Ruby world.
-	  [ruby-dev:23957]
-
-Fri Jul 23 09:03:16 2004  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/imap.rb (disconnected?): new method. (backported from HEAD)
-
-Thu Jul 22 16:41:54 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/cgi/session.rb (CGI::Session::FileStore#update): sets the
-	 permission of the session data file to 0600.
-
-	* lib/cgi/session/pstore.rb (CGI::Session::Pstore#initialize):
+	* ext/openssl/ossl_pkey_dsa.c (ossl_dsa_initialize, ossl_dsa_export):
 	  ditto.
 
-Thu Jul 22 00:02:21 2004  Masahiro Kitajima  <katonbo@katontech.com>
-
-	* process.c (rb_f_system): not need to call last_status_set() any
-	  longer on _WIN32.
-
-Tue Jul 20 09:15:17 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* test/fileutils/test_fileutils.rb: File.link raises EINVAL on BeOS.
-
-Mon Jul 19 01:15:07 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/httpservlet/cgihandler.rb
-	  (WEBrick::HTTPServlet::CGIhandler#do_GET): set SystemRoot environment
-	  variable to CGI process on Windows native platforms. [ruby-dev:23936]
-
-	* lib/webrick/httpservlet/cgihandler.rb
-	  (WEBrick::HTTPServlet::CGIhandler#do_GET): use $?.exitstatus and
-	  refine log message.
-
-Sun Jul 18 16:14:29 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/msgcat.rb (TkMsgCatalog.callback): bug fix
-	  ( wrong number of argument )
-
-Sun Jul 18 08:13:58 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* sprintf.c (rb_f_sprintf): remove extra sign digit.
-
-Sun Jul 18 03:21:42 2004  Akinori MUSHA  <knu@iDaemons.org>
-
-	* dir.c (range): use NULL instead of 0.
-
-	* dir.c (range): get rid of a gcc 3.4 warning.
-
-Sun Jul 18 03:12:11 2004  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/imap.rb (receive_responses): return if a LOGOUT response
-	  received. (backported from HEAD)
-	* lib/net/imap.rb (send_string_data): wait command continuation
-	  requests before sending octet data of literals. (backported from HEAD)
-
-Sat Jul 17 23:54:59 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/variable.rb: TkVariable#ref returns a TkVariable object
-
-Sat Jul 17 22:04:44 2004  akira yamada  <akira@ruby-lang.org>
-
-	* lib/uri/ldap.rb: method hierarchical? should be in URI::LDAP.
-
-Sat Jul 17 18:29:07 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (stmt): not to show same error messages twice.
-
-Sat Jul 17 13:13:32 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* ext/openssl/ossl_pkey_ec.c (ossl_ec_key_initialize,
+	  ossl_ec_key_to_string): ditto.
 
-	* lib/irb/ruby-lex.rb (RubyLex::identify_string): %s string do not
-	  process expression interpolation.  [ruby-talk:106691]
-
-Sat Jul 17 05:26:27 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/diagram.rb: Incorporate Micheal Neuman's
-	  client-side imagemao patch
-
-Sat Jul 17 01:57:03 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (THREAD_ALLOC): th->thread should be initialized to NULL.
-	  [ruby-talk:106657]  The solution was found by Guy Decoux.
-
-Fri Jul 16 22:30:28 2004  Michael Neumann  <mneumann@ntecs.de>
-
-	* file.c (rb_stat_dev_major): new methods File::Stat#dev_major and
-	  #dev_minor. [ruby-core:03195]
-
-Fri Jul 16 15:23:53 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (return_jump, break_jump): raise unexpceted local jump
-	  exception directly.  [ruby-dev:23740]
-
-	* lib/base64.rb (Deprecated): super in bound method calls original
-	  name method in stable version.  [ruby-dev:23916]
-
-Fri Jul 16 11:31:49 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* lib/test/unit/ui/{fox,gtk,gtk2}/testrunner.rb: remove
-	  garbage (patch from akira yamada) [ruby-dev:23911]
-
-Fri Jul 16 11:20:00 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* sprintf.c (rb_f_sprintf): fix output of NaN, Inf and -Inf with
-	  "%f" or etc on MSVCRT platforms. (backported from HEAD)
-
-Fri Jul 16 11:17:38 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (exit_initialize): use EXIT_SUCCESS instead of 0.
-	  [ruby-dev:23913]
-
-	* error.c (exit_success_p): new method SystemExit#success?.
-	  [ruby-dev:23912]
-
-	* error.c (syserr_initialize): initialization for subclasses.
-	  [ruby-dev:23912]
-
-Thu Jul 15 23:53:38 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse.rb (OptionParser#warn, OptionParser#abort): Exception
-	  no longer has to_str method.
-
-Thu Jul 15 22:59:48 2004  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* ext/readline/extconf.rb: added dir_config for curses, ncurses,
-	  termcap. (backported from HEAD)
-
-Thu Jul 15 20:29:15 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* class.c, error.c, eval.c, intern.h, object.c, variable.c:
-	  do not set path if it is a singleton class.  [ruby-dev:22588]
-	  (backport from 1.9)
+	* ext/openssl/ossl_pkey_rsa.c (ossl_rsa_initialize, ossl_rsa_export):
+	  ditto.
 
-Thu Jul 15 10:15:04 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* test/openssl/test_pkey_{dsa,ec,rsa}.rb: test this.
 
-	* ext/tk/, ext/tcltklib/: bug fix
+Fri May 20 23:45:53 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* ext/tk/lib/tk.rb: better operation for SIGINT when processing
-	  callbacks.
-	* ext/tk/lib/tk/msgcat.rb: ditto.
-	* ext/tk/lib/tk/variable.rb: ditto.
-	* ext/tk/lib/tk/timer.rb: ditto.
+	* id_table.c (list_id_table_init): When unaligned word access is
+	  prohibited and sizeof(VALUE) is 8 (64-bit machines),
+	  capa should always be even number for 8-byte word alignment
+	  of the values of a table. This code assumes that sizeof(ID) is 4,
+	  sizeof(VALUE) is 8, and xmalloc() returns 8-byte aligned memory.
+	  This fixes bus error on 64-bit SPARC Solaris 10.
+	  [Bug #12406][ruby-dev:49631]
 
-	* ext/tk/lib/tk/validation.rb: add Tk::ValidateConfigure.__def_validcmd
-	  to define validatecommand methods easier
+Fri May 20 22:30:09 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* ext/tk/lib/tk.rb (_genobj_for_tkwidget): support autoload Tk ext
-	  classes
+	* symbol.h (rb_id2sym): Use HAVE_BUILTIN___BUILTIN_CONSTANT_P
 
-	* ext/tk/lib/tk/canvas.rb and so on: remove the parent widget type
-	  check for items (e.g. canvas items; depends on the class) to
-	  avoid some troubles on Tk extension widget class definition.
+Fri May 20 22:19:00 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-	* ext/tk/lib/tkextlib/: add Iwidget and TkTable extension support
+	* ext/date/date_core.c: [DOC] fix typos.
+	  [fix GH-1360] patched by @soundasleep
 
-	* ext/tk/sample/tkextlib/: add samples of Iwidget and TkTable
+Fri May 20 21:26:58 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-Wed Jul 14 18:08:37 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* include/ruby/defines.h (RB_GNUC_EXTENSION, RB_GNUC_EXTENSION_BLOCK):
+	  macros for skipping __extension__ on non-GCC compilers.
+	* eval_error.c (warn_print): use RB_GNUC_EXTENSION_BLOCK instead of
+	  __extension__ because __extension__ is a GNU extension.
+	  Fix compile error on Solaris 10 with Oracle Solaris Studio 12.x.
+	  [Bug #12397] [ruby-dev:49629].
+	* internal.h (rb_fstring_cstr, rb_fstring_enc_cstr): ditto
+	* include/ruby/encoding.h (rb_enc_str_new, rb_enc_str_new_cstr): ditto
+	* include/ruby/intern.h (rb_str_new, rb_str_new_cstr,
+	  rb_usascii_str_new, rb_utf8_str_new, rb_tainted_str_new_cstr,
+	  rb_usascii_str_new_cstr, rb_utf8_str_new_cstr,
+	  rb_external_str_new_cstr, rb_locale_str_new_cstr,
+	  rb_str_buf_new_cstr, rb_str_cat_cstr, rb_exc_new_cstr): ditto
 
-	* ext/openssl/ossl_asn1.c (ossl_asn1cons_to_der): fix type of
-	  argument. [ruby-dev:23891]
+Fri May 20 21:17:13 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/openssl/test_x509store.rb: prune tests for CRL checking
-	  unless X509::V_FLAG_CRL_CHECK is defined.
+	* ext/win32ole/win32ole.c (fole_missing): make substring or dup to
+	  share the content if possible.
 
-Wed Jul 14 12:29:07 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
+Fri May 20 19:48:48 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* util.c (ruby_strtod): should not convert string in the form of
-	  "-I.FE-X" which both "I" and "F" are ommitted. [ruby-dev:23883]
+	* internal.h (NEW_PARTIAL_MEMO_FOR): shrink buffer array not to
+	  mark non-VALUE fields.  fix check_rvalue_consistency abort with
+	  RGENGC_CHECK_MODE=2.
 
-	* test/ruby/test_float.rb (test_strtod): add test for bug fix.
+	* internal.h (NEW_CMP_OPT_MEMO): exclude struct cmp_opt_data from
+	  the valid array range.
 
-Wed Jul 14 00:31:15 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
+	* enum.c (slicewhen_i): exclude inverted too.
 
-	* array.c: rdoc patch. merged patch from Johan Holmberg
-	  <holmberg@iar.se> [ruby-core:3170]
+Thu May 19 21:21:57 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-Tue Jul 13 19:39:12 2004  akira yamada  <akira@ruby-lang.org>
+	* re.c (rb_reg_match_m_p): [DOC] fix return value in rdoc.
 
-	* lib/uri/generic.rb (URI::Generic#merge_path):
-	  "URI('http://www.example.com/foo/..') + './'" should return
-	  "URI('http://www.example.com/')".  [ruby-list:39838]
-	  "URI('http://www.example.com/') + './foo/bar/..'" should return
-	  "URI('http://www.example.com/foo/')".  [ruby-list:39844]
+	* test/ruby/test_regexp.rb (TestRegexp#test_match_p): add some
+	  tests from document.
 
-	* test/uri/test_generic.rb (TestGeneric#test_merge): added tests.
+Thu May 19 13:22:44 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Tue Jul 13 15:51:45 2004  Akinori MUSHA  <knu@iDaemons.org>
+	* ext/openssl/ossl.c (Init_openssl): register an ex_data index for
+	  X509_STORE and X509_STORE_CTX respectively. Since they don't share
+	  the ex_data index registry, we can't use the same index.
+	  (ossl_verify_cb): use the the correct index.
 
-	* lib/mkmf.rb (init_mkmf): Do not add $(libdir) to $LIBPATH in
-	   extmk mode.
+	* ext/openssl/ossl_ssl.c (ossl_ssl_verify_callback): ditto.
 
-	* lib/mkmf.rb (dir_config): Prepend a new library path instead of
-	  appending so it is tried first.
+	* ext/openssl/ossl_x509store.c (ossl_x509store_set_vfy_cb): ditto.
+	  (ossl_x509stctx_verify): ditto.
 
-Tue Jul 13 00:50:48 2004  Dave Thomas  <dave@pragprog.com>
+	* ext/openssl/ossl.h (void ossl_clear_error): add extern declarations
+	  of ossl_store_{ctx_,}ex_verify_cb_idx.
 
-	* lib/rdoc/parsers/parse_rb.rb: Support call-seq: for Ruby files.
+	* ext/openssl/openssl_missing.c: remove X509_STORE_set_ex_data and
+	  X509_STORE_get_ex_data.
 
-Mon Jul 12 21:20:36 2004  Dave Thomas  <dave@pragprog.com>
+	* ext/openssl/openssl_missing.h: implement X509_STORE_get_ex_data,
+	  X509_STORE_set_ex_data and X509_STORE_get_ex_new_index as macros.
 
-	* html_generator.rb: Support hyperlinks of the form {any text}[xxx]
-	  as well as stuff[xxx]
+Thu May 19 13:11:35 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Sat Jul 10 09:30:24 2004  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* ext/openssl/ossl_x509attr.c (ossl_x509attr_set_value): check that the
+	  argument is an OpenSSL::ASN1::Data before converting to ASN1_TYPE.
+	  This fixes SEGV on OpenSSL::X509::Attribute#value=(non-asn1-value).
 
-	* test/soap/marshal/test_struct.rb: use qualified build-tin class name
-	  (::Struct) to avoid name crash.
+	* test/openssl/test_x509attr.rb: add tests for OpenSSL::X509::Attribute.
 
-Sat Jul 10 04:21:56 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+Thu May 19 12:10:10 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/tk/lib/tk.rb: better operation for SIGINT when processing
-	  callbacks.
-	* ext/tk/lib/tk/msgcat.rb: ditto.
-	* ext/tk/lib/tk/variable.rb: ditto.
-	* ext/tk/lib/tk/timer.rb: ditto.
+	* re.c (rb_reg_match_m_p): fix match against empty string.
+	  rb_str_offset returns the end when the position exceeds the
+	  length.  fix the range parameter of onig_search.
+	  [ruby-core:75604] [Bug #12394]
 
-	* ext/tk/lib/tk/validation.rb (__def_validcmd):  add a module
-	  function of Tk::ValidateConfigure to define validatecommand
-	  methods easier
+Thu May 19 11:37:36 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Jul  9 22:36:36 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
+	* re.c (rb_reg_match_m_p): should return false if no match, as the
+	  document says.  [Feature #8110]
 
-	* array.c, enum.c, pack.c: rdoc patch from Johan Holmberg
-	  <holmberg@iar.se> [ruby-core:3132] [ruby-core:3136]
+Thu May 19 00:17:01 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* numeric.c: rdoc patch.
+	* re.c (reg_names_iter): specify capacify
 
-Fri Jul  9 19:26:39 2004  Tanaka Akira  <akr@m17n.org>
+Wed May 18 21:29:59 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* lib/open-uri.rb (URI::HTTPS#proxy_open): raise ArgumentError to
-	  notice https is not supported.
+	* thread.c (recursive_list_access): a object id may be a Bignum.  so,
+	  the list must be a objhash, instead of a identhash.
+	  this fixes many test errors on mswin64 CI.
 
-Fri Jul  9 14:28:54 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed May 18 19:33:54 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* eval.c (rb_thread_raise): accept third argument as well as
-	  Kernel#raise, and evaluate the arguments to create an exception in
-	  the caller's context.  [ruby-talk:105507]
+	* re.c (rb_reg_match_m_p): Introduce Regexp#match?, which returns
+	  bool and doesn't save backref.
 
-Fri Jul  9 01:47:08 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+Wed May 18 16:52:03 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* ext/tk/lib : bug fix
-	* ext/tk/lib/tkextlib/itcl : add [incr Tcl] support
-	* ext/tk/lib/tkextlib/itk  : add [incr Tk] support
-	* ext/tk/lib/tkextlib/iwidgets : midway point of [incr Widgets] support
-	* ext/tk/sample/tkextlib/iwidgets : very simple examples of
-	  [incr Widgets]
+	* ext/openssl/ossl_pkcs12.c (ossl_pkcs12_initialize): pop errors
+	  leaked by PKCS12_parse(). This is a bug in OpenSSL, which exists
+	  in the versions before the version 1.0.0t, 1.0.1p, 1.0.2d.
 
-Thu Jul  8 22:52:19 2004  Kouhei Sutou  <kou@cozmixng.org>
+Wed May 18 16:04:54 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rss/{rss,parser,0.9,1.0,2.0}.rb: supported RSS 0.9x/2.0
-	  validation and validation which disregard order of elements.
-	* test/rss/test_parser.rb: added tests for RSS 0.9x/2.0
-	  validation.
-	* test/rss/{test_trackback,rss-testcase}.rb: fixed no good method
-	  name.
+	* tool/downloader.rb (Downloader::RubyGems.download): verify gems
+	  only if RubyGems is 2.4 or later.  old RubyGems fails to verify
+	  almost all of bundled gems.
 
-Thu Jul  8 00:05:23 2004  akira yamada  <akira@ruby-lang.org>
+Wed May 18 14:52:38 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/tempfile.rb (Tempfile::initialize): got out code of
-	  generating tmpname.  [ruby-dev:23832][ruby-dev:23837]
+	* string.c (rb_str_modify_expand): check integer overflow.
+	  [ruby-core:75592] [Bug #12390]
 
-Wed Jul  7 15:53:14 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
+Wed May 18 13:11:44 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* string.c (rb_str_match): raise TypeError when both arguments are
-	  strings. [ruby-dev:22869] (backported from HEAD)
+	* re.c (match_ary_subseq): get subseq of match array without creating
+	  temporary array.
 
-	* string.c (rb_str_match2): removed.
+	* re.c (match_ary_aref): get element(s) of match array without creating
+	  temporary array.
 
-	* Makefile.in, bcc32/Makefile.sub, win32/Makefile.sub,
-	  wince/Makefile.sub (string.c): now not depend on version.h.
+	* re.c (match_aref): Use match_ary_subseq with handling irregulars.
 
-Wed Jul  7 00:48:34 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
+	* re.c (match_values_at): Use match_ary_aref.
 
-	* ext/tk/lib/tkextlib/tktrans.rb,
-	  ext/tk/lib/tkextlib/treectrl.rb: fix syntax errors.
+Wed May 18 13:03:07 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Tue Jul  6 18:38:45 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib : improve framework of developping Tcl/Tk extension
-	  wrappers
-
-Mon Jul  5 23:56:42 2004  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/{trackback,syndication,dublincore,content}.rb: worked
-	  with ruby 1.6 again.
-
-	* test/rss/rss-assertions.rb: ditto.
-
-Mon Jul  5 22:54:39 2004  Tanaka Akira  <akr@m17n.org>
-
-	* lib/uri/common.rb (Kernel#URI): new global method for parsing URIs.
-
-Mon Jul  5 09:02:52 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_thread_yield, rb_f_catch): 4th argument to rb_yield_0()
-	  is a set of bit flags.  [ruby-dev:23859]
-
-Mon Jul  5 01:27:32 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* lib/drb/drb.rb(DRbConn self.open): If socket pool is full, close
-	  the socket whose last-access-time is oldest. (and add new one)
-	  [ruby-dev:23860]
-
-Sun Jul  4 12:24:50 2004  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb: added copyright header.
-
-Sun Jul  4 00:24:40 2004  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* added files
-	  * lib/soap/attachment.rb
-	  * lib/soap/header
-	  * lib/soap/mimemessage.rb
-	  * lib/soap/rpc/httpserver.rb
-	  * lib/wsdl/soap/cgiStubCreator.rb
-	  * lib/wsdl/soap/classDefCreator.rb
-	  * lib/wsdl/soap/classDefCreatorSupport.rb
-	  * lib/wsdl/soap/clientSkeltonCreator.rb
-	  * lib/wsdl/soap/driverCreator.rb
-	  * lib/wsdl/soap/mappingRegistryCreator.rb
-	  * lib/wsdl/soap/methodDefCreator.rb
-	  * lib/wsdl/soap/servantSkeltonCreator.rb
-	  * lib/wsdl/soap/standaloneServerStubCreator.rb
-	  * lib/wsdl/xmlSchema/enumeration.rb
-	  * lib/wsdl/xmlSchema/simpleRestriction.rb
-	  * lib/wsdl/xmlSchema/simpleType.rb
-	  * lib/xsd/codegen
-	  * lib/xsd/codegen.rb
-	  * sample/soap/authheader
-	  * sample/soap/raa2.4
-	  * sample/soap/ssl
-	  * sample/soap/swa
-	  * sample/soap/whois.rb
-	  * sample/soap/calc/samplehttpd.conf
-	  * sample/soap/exchange/samplehttpd.conf
-	  * sample/soap/sampleStruct/samplehttpd.conf
-	  * sample/wsdl/raa2.4
-	  * sample/wsdl/googleSearch/samplehttpd.conf
-	  * test/openssl/_test_ssl.rb
-	  * test/soap/header
-	  * test/soap/ssl
-	  * test/soap/struct
-	  * test/soap/swa
-	  * test/soap/wsdlDriver
-	  * test/wsdl/multiplefault.wsdl
-	  * test/wsdl/simpletype
-	  * test/wsdl/test_multiplefault.rb
-
-	* modified files
-	  * lib/soap/baseData.rb
-	  * lib/soap/element.rb
-	  * lib/soap/generator.rb
-	  * lib/soap/marshal.rb
-	  * lib/soap/netHttpClient.rb
-	  * lib/soap/parser.rb
-	  * lib/soap/processor.rb
-	  * lib/soap/property.rb
-	  * lib/soap/soap.rb
-	  * lib/soap/streamHandler.rb
-	  * lib/soap/wsdlDriver.rb
-	  * lib/soap/encodingstyle/handler.rb
-	  * lib/soap/encodingstyle/literalHandler.rb
-	  * lib/soap/encodingstyle/soapHandler.rb
-	  * lib/soap/mapping/factory.rb
-	  * lib/soap/mapping/mapping.rb
-	  * lib/soap/mapping/registry.rb
-	  * lib/soap/mapping/rubytypeFactory.rb
-	  * lib/soap/mapping/wsdlRegistry.rb
-	  * lib/soap/rpc/cgistub.rb
-	  * lib/soap/rpc/driver.rb
-	  * lib/soap/rpc/element.rb
-	  * lib/soap/rpc/proxy.rb
-	  * lib/soap/rpc/router.rb
-	  * lib/soap/rpc/soaplet.rb
-	  * lib/soap/rpc/standaloneServer.rb
-	  * lib/wsdl/data.rb
-	  * lib/wsdl/definitions.rb
-	  * lib/wsdl/operation.rb
-	  * lib/wsdl/parser.rb
-	  * lib/wsdl/soap/definitions.rb
-	  * lib/wsdl/xmlSchema/complexContent.rb
-	  * lib/wsdl/xmlSchema/complexType.rb
-	  * lib/wsdl/xmlSchema/data.rb
-	  * lib/wsdl/xmlSchema/parser.rb
-	  * lib/wsdl/xmlSchema/schema.rb
-	  * lib/xsd/datatypes.rb
-	  * lib/xsd/qname.rb
-	  * sample/soap/calc/httpd.rb
-	  * sample/soap/exchange/httpd.rb
-	  * sample/soap/sampleStruct/httpd.rb
-	  * sample/soap/sampleStruct/server.rb
-	  * sample/wsdl/amazon/AmazonSearch.rb
-	  * sample/wsdl/amazon/AmazonSearchDriver.rb
-	  * sample/wsdl/googleSearch/httpd.rb
-	  * test/soap/test_basetype.rb
-	  * test/soap/test_property.rb
-	  * test/soap/test_streamhandler.rb
-	  * test/soap/calc/test_calc.rb
-	  * test/soap/calc/test_calc2.rb
-	  * test/soap/calc/test_calc_cgi.rb
-	  * test/soap/helloworld/test_helloworld.rb
-	  * test/wsdl/test_emptycomplextype.rb
-	  * test/wsdl/axisArray/test_axisarray.rb
-	  * test/wsdl/datetime/test_datetime.rb
-	  * test/wsdl/raa/test_raa.rb
-	  * test/xsd/test_xmlschemaparser.rb
-	  * test/xsd/test_xsd.rb
-
-	* summary
-	  * add SOAP Header mustUnderstand support.
-
-	  * add HTTP client SSL configuration and Cookies support (works
-	    completely with http-access2).
-
-	  * add header handler for handling sending/receiving SOAP Header.
-
-	  * map Ruby's anonymous Struct to common SOAP Struct in SOAP Object
-	    Model.  it caused error.
-
-	  * add WSDL simpleType support to restrict lexical value space.
-
-	  * add SOAP with Attachment support.
-
-Sat Jul  3 17:19:44 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* ext/tk/lib/tkextlib/tkDND.rb: fix syntax error.
-
-Thu Jul  1 23:15:29 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/pstore.rb (transaction): safer backup scheme.  [ruby-list:39102]
-
-	* lib/pstore.rb (commit_new): use FileUtils.copy_stream for Cygwin.
-	  [ruby-dev:23157]
-
-	* lib/pstore.rb (transaction): allow overriding dump and load.
-	  [ruby-dev:23567]
-
-	* lib/pstore.rb (PStore#transaction): get rid of opening in write mode
-	  when read only transaction.  [ruby-dev:23842]
-
-	* lib/yaml/store.rb: follow lib/pstore.rb's change.
-
-Thu Jul  1 18:36:08 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tcltklib : bug fix
-
-	* ext/tk/lib/tk : bug fix and add Tcl/Tk extension support libraries
-
-Thu Jul  1 11:59:45 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/extconf.rb: check for EVP_CIPHER_CTX_copy, ENGINE_add,
-	  EVP_CIPHER_CTX_set_padding, EVP_CipherFinal_ex, EVP_CipherInit_ex,
-	  EVP_DigestFinal_ex and EVP_DigestInit_ex.
-
-	* ext/openssl/openssl_missing.c (EVP_CIPHER_CTX_copy): new function.
-
-	* ext/openssl/openssl_missing.h (EVP_DigestInit_ex, EVP_DigestFinal_ex,
-	  EVP_CipherInit_ex, EVP_CipherFinal_ex, HMAC_Init_ex): new macro for
-	  OpenSSL 0.9.6.
+	* ext/openssl/ossl_x509cert.c (ossl_x509_verify): X509_verify()
+	  family may put errors on 0 return (0 means verification failure).
+	  Clear OpenSSL error queue before return to Ruby. Since the queue is
+	  thread global, remaining errors in the queue can cause an unexpected
+	  error in the next OpenSSL operation.  [ruby-core:48284] [Bug #7215]
 
-	* ext/openssl/ossl_cipher.c (ossl_cipher_encrypt, ossl_cipher_decrypt):
-	  re-implemnt (the arguments for this method is ).
+	* ext/openssl/ossl_x509crl.c (ossl_x509crl_verify): ditto.
 
-	* ext/openssl/ossl_cipher.c (ossl_cipher_pkcs5_keyivgen): new method
-	  OpenSSL::Cipher::Cipher#pkcs5_keyivgen. it calls EVP_BytesToKey().
+	* ext/openssl/ossl_x509req.c (ossl_x509req_verify): ditto.
 
-	* ext/openssl/ossl_cipher.c (ossl_cipher_alloc, ossl_cipher_initialize,
-	  ossl_cipher_copy, ossl_cipher_reset ossl_cipher_final,
-	  ossl_cipher_set_key, ossl_cipher_set_iv): replace all EVP_CipherInit
-	  and EVP_CipherFinal into EVP_CipherInit_ex and EVP_CipherFinal_ex.
-	  and EVP_CIPHER_CTX_init should only be called once.
+	* ext/openssl/ossl_x509store.c (ossl_x509stctx_verify): ditto.
 
-	* ext/openssl/ossl_cipher.c (ossl_cipher_set_key_length): new method
-	  OpenSSL::Cipher::Cipher#key_len=.
+	* ext/openssl/ossl_pkey_dh.c (dh_generate): clear the OpenSSL error
+	  queue before re-raising exception.
 
-	* ext/openssl/ossl_cipher.c (ossl_cipher_init_deprecated): new
-	  finction; print warning for Cipher#<<.
+	* ext/openssl/ossl_pkey_dsa.c (dsa_generate): ditto.
 
-	* ext/openssl/ossl_digest.c: replace all EVP_DigestInit and
-	  EVP_DigestFinal into EVP_DigestInit_ex and EVP_DigestFinal_ex.
-	  and EVP_MD_CTX_init should only be called once.
+	* ext/openssl/ossl_pkey_rsa.c (rsa_generate): ditto.
 
-	* ext/openssl/ossl_digest.c (digest_final): should call
-	  EVP_MD_CTX_cleanup to avoid memory leak.
+	* ext/openssl/ossl_ssl.c (ossl_start_ssl): ditto.
 
-	* ext/openssl/ossl_hmac.c (ossl_hmac_initialize): repalce HMAC_init
-	  into HMAC_init_ex. and HMAC_CTX_init is moved to ossl_hmac_alloc.
+	* test/openssl: check that OpenSSL.errors is empty every time after
+	  running a test case.
 
-	* ext/openssl/ossl_hmac.c (hmac_final): should call
-	  HMAC_CTX_cleanup to avoid memory leak.
+Wed May 18 12:07:42 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* test/openssl/test_cipher.rb, test/openssl/test_digest.rb,
-	  test/openssl/test_hmac.rb: new file.
+	* ext/openssl/ossl.c (ossl_clear_error): Extracted from
+	  ossl_make_error(). This prints errors in the OpenSSL error queue if
+	  OpenSSL.debug is true, and clears the queue.
+	  (ossl_make_error): use ossl_clear_error().
 
-Thu Jul  1 04:08:30 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* ext/openssl/ossl.h: add prototype declaration of ossl_make_error().
+	  (OSSL_BIO_reset) use ossl_clear_error() to clear the queue. Clearing
+	  silently makes debugging difficult.
 
-	* ext/openssl/ossl_asn1.c (ossl_i2d_ASN1_TYPE, ossl_ASN1_TYPE_free):
-	  workaround for the versions earlier than OpenSSL-0.9.7.
+	* ext/openssl/ossl_engine.c (ossl_engine_s_by_id): ditto.
 
-Thu Jul  1 03:33:55 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* ext/openssl/ossl_ns_spki.c (ossl_spki_initialize): ditto.
 
-	* ext/openssl/ossl_pkey_dh.c (ossl_dh_initialize): should create
-	  empty pkey object if no argument is passed. [ruby-talk:103328]
+	* ext/openssl/ossl_pkcs7.c (ossl_pkcs7_verify): ditto.
 
 	* ext/openssl/ossl_pkey_dsa.c (ossl_dsa_initialize): ditto.
 
-	* ext/openssl/ossl_pkey_rsa.c (ossl_rsa_initialize): ditto.
-
-	* ext/openssl/ossl_pkey_dh.c: add new methods: OpenSSL::PKey::DH#p,
-	  OpenSSL::PKey::DH#p=, OpenSSL::PKey::DH#g, OpenSSL::PKey::DH#g=,
-	  OpenSSL::PKey::DH#pub_key, OpenSSL::PKey::DH#pub_key=,
-	  OpenSSL::PKey::DH#priv_key and OpenSSL::PKey::DH#priv_key=.
-
-	* ext/openssl/ossl_pkey_dsa.c: add new methods: OpenSSL::PKey::DSA#p,
-	  OpenSSL::PKey::DSA#p=, OpenSSL::PKey::DSA#q, OpenSSL::PKey::DSA#q=,
-	  OpenSSL::PKey::DSA#g, OpenSSL::PKey::DSA#g=,
-	  OpenSSL::PKey::DSA#pub_key, OpenSSL::PKey::DSA#pub_key=,
-	  OpenSSL::PKey::DSA#priv_key and OpenSSL::PKey::DSA#priv_key=.
-
-Thu Jul  1 03:16:09 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_ssl.c (ossl_ssl_read): take optional second argument
-	  to specify a string to be written.
-
-	* ext/openssl/lib/openssl/buffering.rb (OpenSSL::Buffering#read):
-	  take optional second argument to specify a string to be written.
-
-	* ext/openssl/lib/openssl/buffering.rb (OpenSSL::Buffering#gets):
-	  refine regexp for end-of-line.
-
-	* ext/opnessl/lib/openssl/ssl.rb
-	  (OpenSSL::SSL::SocketForwarder#listen): fix typo.
-
-Wed Jun 30 11:38:51 2004  Mikael Brockman  <phubuh@phubuh.org>
-
-	* parse.y (primary): should not be NULL.  [ruby-core:03098]
-
-Wed Jun 30 02:53:24 2004  why the lucky stiff  <why@ruby-lang.org>
-
-	* ext/syck/rubyext.c (syck_emitter_new): set buffer after
-	  Data_Wrap_Struct to avoid possible GC. [ruby-talk:104835]
-
-Tue Jun 29 10:31:19 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_eval_cmd, rb_thread_trap_eval): restore safe level.
-
-	* gc.c (define_final, run_final): preserve and restore safe level for
-	  finalizers.  [ruby-core:03058]
-
-	* signal.c (signal_exec, rb_trap_exit, trap): preserve and restore
-	  safe level for signal handlers.  [ruby-dev:23829]
-
-Mon Jun 28 14:57:56 2004  Jeff Mitchell  <quixoticsycophant@yahoo.com>
-
-	* configure.in, lib/mkmf.rb (LIBPATHFLAG): use double quotes due to
-	  DOSISH compilers.  [ruby-core:03107]
-
-Mon Jun 28 00:30:19 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* sample/drb/*.rb: using 'DRb.thread.join' instead of 'gets'
-
-Sun Jun 27 22:39:51 2004  Kouhei Sutou  <kou@cozmixng.org>
-
-	* sample/rss/tdiary_plugin/rss-recent.rb: supported Hiki.
-
-Sun Jun 27 12:19:46 2004  Kouhei Sutou  <kou@cozmixng.org>
-
-	* {lib,sample,test}/rss: added RSS Parser. [ruby-dev:23780]
-
-Sat Jun 26 11:07:30 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (aix): -b must come at the start of the command line,
-	  and -e must not appear while testing libraries.  [ruby-talk:104501]
-
-	* lib/mkmf.rb (dir_config): quote directory names if necessary.
-	  [ruby-talk:104505]
-
-Fri Jun 25 15:33:19 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/iconv/extconf.rb: check stricter.  [ruby-talk:104501]
-
-	* ext/iconv/extconf.rb: include iconv.h for libiconv.  [ruby-dev:22715]
-
-Fri Jun 25 08:31:29 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_thread_atfork): remove "fork terminates thread"
-	  warning.  [ruby-dev:23768]
-
-	* object.c (rb_obj_clone): backport FL_FINALIZE patch from 1.9.
-	  [ruby-core:02786][ruby-core:03067]
-
-	* ext/socket/socket.c (sock_sockaddr): Socket#gethostbyname()
-	  should give us packed address, not struct sockaddr.
-	  [ruby-core:03053]
-
-Fri Jun 25 02:04:23 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* {bcc32,win32,wince}/setup.mak: remove RUBY_EXTERN lines when
-	  including version.h. [ruby-talk:104456] (backported from HEAD)
-
-Thu Jun 24 14:23:29 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (rb_io_fread): return already read data when system call is
-	  interrupted.  [ruby-talk:97206]
-
-Thu Jun 24 01:32:43 2004  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* version.h: added declarations of ruby_version,
-	  ruby_release_date, ruby_platform.
-	  (backported from HEAD)
-
-Wed Jun 23 22:23:37 2004  Dave Thomas  <dave@pragprog.com>
-
-	* ext/socket/socket.c (sock_s_gethostbyaddr): Work around problem
-	  with OS X not returning 'from' parameter to recvfrom for
-	  connection-oriented sockets.
-
-Wed Jun 23 01:45:27 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_rb.rb (RubyLex::identify_quotation):
-	  Fix problem with the 'r' being dropped from %r{xxx}
-
-Wed Jun 23 00:20:20 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/win32ole/win32ole.c (ole_hresult2msg): remove trailing
-	  CRs and LFs. (doesn't depend on CR+LF) [ruby-dev:23749]
-
-Wed Jun 23 00:00:25 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (rb_io_initialize): should check fcntl result.  [ruby-dev:23742]
-
-Tue Jun 22 21:11:36 2004  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/win32ole.c (OLE_FREE): should not call CoFreeUnuse-
-	  dLibraries().
-
-	* ext/win32ole/win32ole.c (ole_event_free): ditto.
-
-	* ext/win32ole/win32ole.c (ole_hresult2msg): truncate error message
-	  before CR.
-
-Tue Jun 22 16:47:42 2004  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/ftp.rb (MDTM_REGEXP): fix for demon's ftp server.
-	  Thanks, Rutger Nijlunsing.
-
-Mon Jun 21 10:19:23 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (rb_w32_opendir): use FindFirstFile()/FindNextFile()/
-	  FindClose() instead of _findfirst()/_findnext()/_findclose().
-	  merge from HEAD.
-
-Sat Jun 19 13:24:15 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (method_call): allow changing $SAFE.  [ruby-dev:23713]
-
-Fri Jun 18 23:12:22 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (proc_save_safe_level, rb_set_safe_level, safe_setter): limit
-	  safe level.
-
-Wed Jun 16 23:05:57 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* object.c (rb_mod_freeze): prepare string representation before
-	  freezing. [ruby-talk:103646]
-
-Wed Jun 16 16:04:40 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* object.c (rb_mod_le): singleton class inherits Class rather than its
-	  object's class.  [ruby-dev:23690]
-
-Wed Jun 16 16:01:17 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* gc.c (stack_grow_direction): memoize the direction.
-
-	* gc.c (Init_stack): should always move to end of VALUE.
-
-Tue Jun 15 12:10:04 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: bug fix (TkWindow#grab)
-
-Mon Jun 14 18:23:27 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/remote-tk.rb: bug fix
-
-Sun Jun 13 00:23:04 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/extconf.rb: [EXPERIMENTAL] MacOS X (darwin) support
-
-	* ext/tcltklib/tcltklib.c: fix thread trouble on callback proc, and
-	  eliminate warning about instance variable access
-
-	* ext/tk/lib/tk/menubar.rb: improve supported menu_spec
-
-	* ext/tk/lib/tk/menuspec.rb: [add] menu_spec support library
-
-	* ext/tk/lib/tk/root.rb: add menu_spec support
-
-	* ext/tk/lib/tk/text.rb: bug fix
-
-	* ext/tk/lib/tk/toplevel.rb: add menu_spec support
-
-	* ext/tk/sample/menubar?.rb: [add] sample of menu_spec usage
-
-Sat Jun 12 11:15:53 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* configure.in (target_os): strip -gnu suffix on Linux.
-
-Fri Jun 11 17:08:21 2004  Akinori MUSHA  <knu@iDaemons.org>
-
-	* config.guess: Restore a wrongly removed hyphen.
-
-Fri Jun 11 14:30:08 2004  Akinori MUSHA  <knu@iDaemons.org>
-
-	* config.guess: Attempt to avoid system name change on
-	  Darwin platforms also.
-
-Fri Jun 11 14:22:45 2004  Akinori MUSHA  <knu@iDaemons.org>
-
-	* config.guess, config.sub: Attempt to avoid system name change on
-	  Linux platforms.  We have been using "linux" instead of
-	  "linux-gnu" on this branch.
-
-Thu Jun 10 19:19:41 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/sdbm/init.c (fsdbm_store): sdbm should use StringValue().
-	  [ruby-talk:103062]
-
-Wed Jun  9 18:04:14 2004  akira yamada  <akira@ruby-lang.org>
-
-	* lib/uri/generic.rb (URI::Generic::merge,
-	  URI::Generic::route_from): accepts non-hierarchical URI.
-	  [ruby-dev:23631]
-
-	* test/uri/test_generic.rb (TestGeneric::test_route,
-	  TestGeneric::test_merge): added tests for above changes.
-
-Wed Jun  9 17:39:37 2004  Akinori MUSHA  <knu@iDaemons.org>
-
-	* config.guess, config.sub: Update to a more recent version as of
-	  2004-01-20.
-
-	* configure.in: Add support for DragonFly BSD.
-
-Wed Jun  2 20:16:03 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (str_new4): should share shared instance if it already
-	  exists.  [ruby-dev:23665]
-
-Wed Jun  2 12:41:53 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (rb_io_gets_m): set lastline ($_) even when read line is
-	  nil.  [ruby-dev:23663]
-
-Fri May 28 11:20:31 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_eval): bad influence on frame node.
-
-	* eval.c (eval): reverted wrongly removed condition.  [ruby-dev:23638]
-
-Thu May 27 23:15:18 2004  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* lib/logger.rb: leading 0 padding of timestamp usec part.
-
-	* lib/csv.rb (CSV.parse): [CAUTION] behavior changed.  in the past,
-	  CSV.parse accepts a filename to be read-opened (it was just a
-	  shortcut of CSV.open(filename, 'r')).  now CSV.parse accepts a
-	  string or a stream to be parsed e.g.
-	  CSV.parse("1,2\n3,r") #=> [['1', '2'], ['3', '4']]
-
-	* lib/csv.rb: CSV::Row and CSV::Cell are deprecated.  these classes
-	  are removed in the future.  in the new csv.rb, row is represented
-	  as just an Array.  since CSV::Row was a subclass of Array, it won't
-	  hurt almost all programs except one which depended CSV::Row#match.
-	  and a cell is represented as just a String or nil(NULL).  this
-	  change will cause widespread destruction.
-
-	      CSV.open("foo.csv", "r") do |row|
-		row.each do |cell|
-		  if cell.is_null       # using Cell#is_null
-		    p "(NULL)"
-		  else
-		    p cell.data         # using Cell#data
-		  end
-		end
-	      end
-
-	    must be just;
-
-	      CSV.open("foo.csv", "r") do |row|
-		row.each do |cell|
-		  if cell.nil?
-		    p "(NULL)"
-		  else
-		    p cell
-		  end
-		end
-	      end
-
-	* lib/csv.rb: [CAUTION] record separator(CR, LF, CR+LF) behavior
-	  change.  CSV.open, CSV.parse, and CSV,generate now do not force
-	  opened file binmode.  formerly it set binmode explicitly.
-
-	  with CSV.open, binmode of opened file depends the given mode
-	  parameter "r", "w", "rb", and "wb".  CSV.parse and CSV.generate open
-	  file with "r" and "w".
-
-	  setting mode properly is user's responsibility now.
-
-	* lib/csv.rb: accepts String as a fs (field separator/column separator)
-	  and rs (record separator/row separator)
-
-	* lib/csv.rb (CSV.read, CSV.readlines): added.  works as IO.read and
-	  IO.readlines in CSV format.
-
-	* lib/csv.rb: added CSV.foreach(path, rs = nil, &block).  CSV.foreach
-	  now does not handle "| cmd" as a path different from IO.foreach.
-	  needed?
-
-	* test/csv/test_csv.rb: updated.
-
-	* test/ruby/test_float.rb: added test_strtod to test Float("0").
-
-Thu May 27 21:37:50 2004  Tanaka Akira  <akr@m17n.org>
-
-	* lib/pathname.rb (Pathname#initialize): refine pathname initialization
-	  by pathname.
-
-Thu May 27 20:22:05 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* io.c (rb_io_fwrite): check all case errno != 0 [ruby-dev:23648]
-
-Thu May 27 14:53:13 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* io.c (rb_io_fwrite): workaround for bcc32's fwrite bug.
-	  add errno checking.  [ruby-dev:23627]
-
-Wed May 26 14:19:42 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_eval, eval): make line number consistent on eval with
-	  Proc.  [ruby-talk:101253]
-
-Wed May 26 13:59:17 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_rb.rb (RDoc::RubyParser::skip_for_variable): Allow for
-	  'do' after for statement
-
-Wed May 26 13:56:03 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/generators/html_generator.rb (Generators::MarkUp::style_url): Fix
-	  relative path to code CSS file
-
-Wed May 26 13:14:52 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (rb_io_init_copy): copy also positions.  [ruby-talk:100910]
-
-Wed May 26 00:00:00 2004  why the lucky stiff  <why@ruby-lang.org>
-
-	* ext/syck/syck.c (syck_new_parser): clear parser on init.
-	  thanks, ts. [ruby-core:02931]
-
-	* ext/syck/token.c (sycklex_yaml_utf8): buffer underflow.
-	  thanks, ts. [ruby-core:02929]
-
-	* lib/yaml/baseemitter.rb (indent_text): simpler flow block code.
-
-	* lib/yaml.rb: added rdoc to beginning of lib.
-
-Mon May 24 10:46:26 2004  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* lib/rdoc/generators/template/html/html.rb: SYSTEM identifiers
-	  must be absolute URIs
-
-Sat May 22 12:00:04 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* MANIFEST: add new encodings in rexml.
-
-	* ext/tk/MANIFEST: add recent files.
-
-Sat May 22 05:37:11 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/remote-tk.rb: (NEW library) controll Tk interpreters
-	  on the other processes by Tcl/Tk's 'send' command
-
-Fri May 21 09:22:05 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_rb.rb (RDoc::RubyParser::parse_method_parameters):
-	  Add ()'s around parameters that don't have them
-
-Thu May 20 17:02:03 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (check_sizeof): define result size.  [ruby-core:02911]
-
-	* lib/mkmf.rb (create_header): macro name should not include equal
-	  sign.
-
-Thu May 20 15:59:50 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* ext/socket/socket.c: fix SEGV. [ruby-dev:23550]
-
-Thu May 20 14:35:52 2004  Tanaka Akira  <akr@m17n.org>
-
-	* ext/socket/socket.c: check SCM_RIGHTS macro addition to
-	  the msg_control field to test existence of file descriptor passing
-	  by msg_control.
-
-Thu May 20 12:38:06 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* numeric.c (flo_eq): always check if operands are NaN.
-	  [ruby-list:39685]
-
-Thu May 20 12:34:39 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_rb.rb (RDoc::RubyParser::parse_visibility):
-	  At Ryan Davis' suggestion, honor visibility modifers if guarded by a
-	  statement modifier
-
-Thu May 20 12:22:13 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (have_type): do not check pointer to incomplete type,
-	  which always get compiled.  [ruby-list:39683]
-
-Wed May 19 11:09:00 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: change permition of TkObject#tk_send from
-	  private to public
-
-Tue May 18 14:00:46 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* node.h (NEW_DSTR): adjust list length.
-
-	* parse.y (literal_concat): ditto.
-
-Mon May 17 16:14:25 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* numeric.c (flo_to_s): it's preferable that "p 0.0" outputs "0.0"
-	  instead of "0.0e+00". [ruby-dev:23480]
-
-	* numeric.c (flo_to_s): it's preferable that "p 0.00000000000000000001"
-	  outputs "1.0e-20" instead of "9.999999999999999e-21". (the precision
-	  is considered, but there is assumption DBL_DIG == 15 in current
-	  implementation)
-
-Mon May 17 10:13:33 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* ext/socket/socket.c (setup_domain_and_type): honor duck typing.
-	  [ruby-dev:23522]
-
-	* ext/socket/socket.c (sock_s_getnameinfo): ditto.
-
-Mon May 17 01:15:23 2004  why the lucky stiff  <why@ruby-lang.org>
-
-	* lib/yaml.rb: removed fallback to pure Ruby parser.
-
-	* lib/yaml/baseemitter.rb (indent_text): was forcing a mod value
-	  of zero at times, which kept some blocks from getting indentation.
-
-	* lib/yaml/baseemitter.rb (node_text): rewriting folded scalars.
-
-	* ext/syck/syck.h: reports style of scalars now, be they plain, block
-	  single-, or double-quoted.
-
-	* ext/syck/syck.c: ditto.
-
-	* ext/syck/gram.c: ditto.
-
-	* ext/syck/node.c: ditto.
-
-	* ext/syck/token.c: ditto.
-
-	* ext/syck/rubyext.c (yaml_org_handler): symbols loaded only
-	  if scalar style is plain.
-
-	* ext/syck/rubyext.c (yaml_org_handler): some empty strings were
-	  loaded as symbols.
-
-	* test/yaml/test_yaml.rb (test_perl_regexp): updated test to
-	  match new regexp serialization.
-
-Mon May 17 00:03:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
-
-	* lib/drb/drb.rb: Cosmetic documentation changes.
-
-Sun May 16 22:36:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
-
-	* lib/test/unit.rb: Removed :nodoc: directive (it prevented effective
-	  RDoc operation), and added file-level comment.
-
-Sun May 16 20:55:49 2004  Tanaka Akira  <akr@m17n.org>
-
-	* ext/dbm/dbm.c (fdbm_initialize): accept optional 3rd argument to
-	  specify an open flag.
-	  (Init_dbm): define open flags: DBM::READER, DBM::WRITER, DBM::WRCREAT
-	  and DBM::NEWDB.
-
-Sun May 16 13:10:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
-
-	* lib/test/unit/**/*.rb: Removed :nodoc: directives (many were
-	  generating warnings, many were on private methods).
-
-Sat May 15 01:41:34 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (eval): forgot to restore $SAFE value before evaluating
-	  compiled node.  [ruby-core:02872]
-
-Sat May 15 01:33:12 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* range.c (range_each_func): terminates loop if generating value
-	  is same to @end.  [ruby-talk:100269]
-
-Fri May 14 22:08:38 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (rb_str_new4): should not reuse frozen shared string if
-	  the original is not an instance of String. [ruby-talk:100193]
-
-Fri May 14 18:39:25 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/canvas.rb: improve coords support for canvas items.
-	  Now, supports all of the followings.
-	    TkcLine.new(c, 0, 0, 100, 100, :fill=>'red')
-	    TkcLine.new(c, [0, 0, 100, 100], :fill=>'red')
-	    TkcLine.new(c, [0, 0], [100, 100], :fill=>'red')
-	    TkcLine.new(c, [[0, 0], [100, 100]], :fill=>'red')
-	    TkcLine.new(c, :coords=>[0, 0, 100, 100], :fill=>'red')
-	    TkcLine.new(c, :coords=>[[0, 0], [100, 100]], :fill=>'red')
-
-Fri May 14 12:11:43 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* util.c (ruby_strtod): strtod("0", &end); => end should point '\0'.
-	 [ruby-dev:23498]
-
-Thu May 13 15:47:30 2004  akira yamada  <akira@ruby-lang.org>
-
-	* lib/net/telnet.rb (Net::Telnet::login): "options" can specify
-	  regexps for login prompt and/or password prompt.
-
-Thu May 13 14:23:45 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* hash.c (delete_if_i): use st_delete_safe() (via
-	  rb_hash_delete()) instead of returning ST_DELETE.
-	  backport from HEAD.  [ruby-dev:23487]
-
-Thu May 13 13:01:30 2004  akira yamada  <akira@ruby-lang.org>
-
-	* lib/uri/mailto.rb (URI::MailTo::to_s): should include fragment.
-
-Thu May 13 11:04:08 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* pack.c (pack_pack): always add with null for 'Z'.
-
-	* pack.c (pack_unpack): terminated by null for 'Z'.  [ruby-talk:98281]
-
-Wed May 12 19:59:43 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (have_type, check_sizeof): replace unusable characters.
-	  [ruby-talk:99788]
-
-Wed May 12 17:41:42 2004  Tanaka Akira  <akr@m17n.org>
-
-	* lib/resolv.rb (Resolv::DNS::Config): make it configurable without
-	  external file such as /etc/resolv.conf.
-
-Wed May 12 14:37:27 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_x509name.c: attribute value of DC (short name of
-	  domainComponent) should be IA5String.
-
-Wed May 12 13:20:19 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk/composite.rb: improve configure methods (based on
-	  the proposal of [ruby-talk:99671]).
-
-Wed May 12 11:51:08 2004  Dave Thomas  <dave@pragprog.com>
-
-	* class.c (rb_obj_singleton_methods): fix rdoc
-
-Mon May 10 21:44:42 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/generators/html_generator.rb: Change scheme for
-	  looking up symbols in  HTML generator.
-
-Mon May 10 16:45:21 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (eval): warning during eval should not cause deadlock.
-	  [ruby-talk:98651]
-
-	* eval.c (rb_eval): raise TypeError exception for superclass
-	  mismatch.  [ruby-list:39567]
-
-Mon May 10 12:11:37 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/generators/html_generator.rb: Hack to search parents
-	  for unqualified constant names.
-
-Mon May 10 12:11:37 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/generators/html_generator.rb: Hack to search parents
-	  for unqualified constant names.
-
-Sun May  9 22:37:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
-
-	* lib/net/ftp.rb: improved documentation
-	* lib/net/imap.rb: ditto
-	* lib/net/pop.rb: ditto
-	* lib/net/smtp.rb: ditto
-	* lib/net/telnet.rb: ditto
-
-Fri May  7 21:50:21 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_rb.rb (RDoc::parse_include): Allow
-	  multiple arguments to 'include'
-
-Fri May  7 21:31:56 2004  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/fileutils.rb (fu_list): Array() breaks pathes including "\n".
-	  [ruby-core:02843]
-
-Fri May  7 11:25:53 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* util.c (ruby_strtod): "0.0000000000000000001" should be converted
-	  to 1.0e-19 instead of 0.0. (leading zeros aren't significant digits)
-	  [ruby-talk:99318] [ruby-dev:23465]
-
-Fri May  7 10:00:05 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/tkutil.c (get_eval_string_core): bug fix. [ruby-dev:23466]
-
-Thu May  6 22:13:17 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* ext/socket/socket.c (ippaddr): use NUMERICHOST if can not resolve
-	  hostname.
-
-Thu May  6 14:22:29 2004  why the lucky stiff  <why@ruby-lang.org>
-
-	* lib/yaml/rubytypes.rb (to_yaml): added instance variable handling
-	  for Ranges, Strings, Structs, Regexps.
-
-	* lib/yaml/rubytypes.rb (to_yaml_fold): new method for setting a
-	  String's flow style.
-
-	* lib/yaml.rb (YAML::object_maker): now uses Object.allocate.
-
-	* ext/syck/gram.c: fixed transfer methods on structs, broke it
-	  last commit.
-
-Thu May  6 11:40:28 2004  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/imap.rb (string): accept NIL.
-
-	* lib/net/imap.rb (body_type_basic): allow body-fields omissions.
-
-Thu May  6 01:59:04 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/generators/html_generator.rb (Generators::HtmlMethod::params):
-	  Don't include the &block parameter if we have explicit
-	  yield parameters.
-
-Wed May  5 03:40:29 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/rinda/ring.rb: use recv instead of recvfrom.
-
-Tue May  4 23:52:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
-
-	* lib/gserver.rb: documented
-
-Tue May  4 23:46:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
-
-	* lib/xmlrpc/README.txt: introduced for documentation purposes
-
-Mon May  3 09:47:24 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_rb.rb (RDoc::RubyParser::parse_method_or_yield_parameters):
-	  Fix parsing bug if yield called within 1 line block
-
-Sun May  2 01:04:38 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib, ext/tk: renewal Ruby/Tk
-
-Fri Apr 30 20:08:41 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* time.c (SIZEOF_TIME_T): support SIZEOF_TIME_T == SIZEOF_INT.
-
-Tue Apr 27 13:12:42 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_eval): too many line trace call. (ruby-bugs PR#1320)
-
-Tue Apr 27 08:41:28 2004  why the lucky stiff  <why@ruby-lang.org>
-
-	* lib/yaml/rubytypes.rb: passing Range tests.
-
-	* ext/syck/syck.h: version 0.44.
-
-	* ext/syck/gram.c: transfers no longer open an indentation.
-	  fixed transfers which precede blocks.
-
-	* ext/syck/token.c: ditto.
-
-	* ext/syck/syck.c: fixed segfault if an anchor has been released already.
-
-	* ext/syck/node.c (syck_free_members): organized order of free'd nodes.
-
-	* ext/syck/rubyext.c (syck_emitter_write_m): test for proper string with
-	  StringValue.
-
-Mon Apr 26 23:56:54 2004  Daniel Kelley  <news-1082945587@dkelley.gmp.san-jose.ca.us>
-
-	* README.EXT, README.EXT.ja: fixed wrong function signature.
-	  [ruby-talk:98349]
-
-Mon Apr 26 21:40:09 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/code_objects.rb (RDoc::Context::add_alias): Only alias
-	  to instance methods.
-
-Sat Apr 24 10:38:31 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/markup/simple_markup.rb (SM::SimpleMarkup::group_lines):
-	  Fix bug where consecutive headings are merged.
-
-Fri Apr 23 23:26:13 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb: $hdrdir should not contain macros for backward
-	  compatibility.  [bruby-dev:28]
-
-	* version.c (ruby_show_copyright): obtain copyright year from
-	  RUBY_RELEASE_YEAR.
-
-	* win32/resource.rb: ditto.
-
-	* win32/resource.rb: default rubyw icon to ruby.ico, and let DLL also
-	  include them.
-
-	* win32/resource.rb: include winver.h for older WindowsCE.
-
-Fri Apr 23 16:38:46 2004  Tanaka Akira  <akr@m17n.org>
-
-	* lib/pathname.rb: sync taint/freeze flag between
-	  a pathname object and its internal string object.
-
-Fri Apr 23 14:52:08 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (stmt, arg, aref_args): should not make sole splat into
-	  array, in aref_args other than aref with op_asgn.
-
-Fri Apr 23 14:14:38 2004  Tanaka Akira  <akr@m17n.org>
-
-	* lib/resolv.rb: don't use Regexp#source to embed regexps.
-	  [ruby-dev:23432]
-
-Thu Apr 22 04:15:36 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (aref_args): should pass expanded list.  [ruby-core:02793]
-
-Thu Apr 22 01:12:57 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* numeric.c (flo_to_s): tweak output string based to preserve
-	  decimal point and to remove trailing zeros.  [ruby-talk:97891]
-
-	* string.c (rb_str_index_m): use unsigned comparison for T_FIXNUM
-	  search.  [ruby-talk:97342]
-
-Wed Apr 21 22:57:27 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/rinda/rinda.rb, test/rinda/test_rinda.rb: check Hash tuple size.
-
-Wed Apr 21 20:05:00 2004  Tanaka Akira  <akr@m17n.org>
-
-	* lib/open-uri.rb (URI::HTTP#proxy_open): set Host: field explicitly.
-	  [ruby-list:39542]
-
-Mon Apr 19 18:11:15 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* hash.c (rb_hash_equal): returns true if two hashes have same set
-	  of key-value set.  [ruby-talk:97559]
-
-	* hash.c (rb_hash_eql): returns true if two hashes are equal and
-	  have same default values.
-
-Mon Apr 19 08:19:58 2004  Doug Kearns  <djkea2@mugca.its.monash.edu.au>
-
-	* dln.c, io.c, lib/benchmark.rb, lib/cgi.rb, lib/csv.rb, lib/date.rb,
-	  lib/ftools.rb, lib/getoptlong.rb, lib/logger.rb, lib/matrix.rb,
-	  lib/monitor.rb, lib/set.rb, lib/thwait.rb, lib/timeout.rb,
-	  lib/yaml.rb, lib/drb/drb.rb, lib/irb/workspace.rb, lib/net/ftp.rb,
-	  lib/net/http.rb, lib/net/imap.rb, lib/net/telnet.rb,
-	  lib/racc/parser.rb, lib/rinda/rinda.rb, lib/rinda/tuplespace.rb,
-	  lib/shell/command-processor.rb, lib/soap/rpc/soaplet.rb,
-	  lib/test/unit/testcase.rb, lib/test/unit/testsuite.rb: typo fix.
-
-Mon Apr 19 08:14:18 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_c.rb (RDoc::C_Parser::find_body): Allow for
-	  #ifdef HAVE_PROTOTYPES
-
-Fri Apr 16 22:33:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
-
-	* ext/iconv/iconv.c: nearly finished RDoc comments.
-
-Fri Apr 16 17:04:07 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* string.c (rb_str_equal): always returns true or false, never
-	  returns nil. [ruby-dev:23404]
-
-Fri Apr 16 08:27:02 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb: skip linking when libraries to be preloaded not
-	  compiled.  [ruby-list:39561]
-
-Thu Apr 15 23:21:52 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* process.c (pst_success_p): new method Process::Status#success?.
-	  [ruby-dev:23385]
-
-Thu Apr 15 17:12:13 2004  Tanaka Akira  <akr@m17n.org>
-
-	* ext/gdbm/gdbm.c (Init_gdbm): define GDBM::READER, GDBM::WRITER,
-	  GDBM::WRCREAT and GDBM::NEWDB.
-	  (fgdbm_initialize): use specified read/write flag.
-
-Wed Apr 14 11:29:56 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* numeric.c (flo_eq): workaround for bcc32's bug.
-	  (ruby-bugs-ja:PR#594)
-
-Wed Apr 14 13:06:35 2004  Doug Kearns  <djkea2@mugca.its.monash.edu.au>
-
-	* array.c, enum.c, eval.c, file.c, io.c, numeric.c, object.c, prec.c,
-	  process.c, re.c, string.c: typos in RDoc comments.  [ruby-core:02783]
-
-Wed Apr 14 11:06:38 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_rb.rb (RDoc::RubyParser::scan): Changed
-	  behavior of :enddoc: -- it now unconditionally terminates
-	  processing of the current file.
-
-Wed Apr 14 11:03:22 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* defines.h: include <net/socket.h> to get fd_set definition in BeOS.
-
-Tue Apr 13 23:06:30 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+	* ext/openssl/ossl_pkey_ec.c (ossl_ec_key_initialize): ditto.
+	  (ossl_ec_group_initialize): ditto.
 
-	* lib/rinda/rinda.rb: change pattern matching.
-	  a === b -> a == b || a === b. [druby-ja:98]
+	* ext/openssl/ossl_ssl.c (ossl_ssl_shutdown): ditto.
 
-	* test/rinda/test_rinda.rb: ditto.
+Wed May 18 11:53:49 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Tue Apr 13 19:54:29 2004  Minero Aoki  <aamine@loveruby.net>
+	* ext/openssl/ossl_pkey_ec.c (ossl_ec_point_mul): Validate the
+	  arguments before passing to EC_POINT(s)_mul(). Add description of this
+	  method.  [ruby-core:65152] [Bug #10268]
 
-	* lib/net/http.rb: should not overwrite HTTP request header.
-	  [ruby-list:39543]
+	* test/openssl/test_pkey_ec.rb (test_ec_point_mul): Test that
+	  OpenSSL::PKey::EC::Point#mul works.
 
-Tue Apr 13 01:30:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
+Wed May 18 11:19:59 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* ext/iconv/iconv.c: RDoc documentation (from RD; nearly finished).
-	* ext/iconv/charset_alias.rb: Prevent from RDoc'ing.
+	* ext/openssl/ossl_bn.c (try_convert_to_bnptr): Extracted from
+	  GetBNPtr(). This doesn't raise exception but returns NULL on error.
+	  (GetBNPtr): Raise TypeError if conversion fails.
+	  (ossl_bn_eq): Implement BN#==.
+	  (ossl_bn_eql): #eql? should not raise TypeError even if the argument
+	  is not compatible with BN.
+	  (ossl_bn_hash): Implement BN#hash.
 
-Mon Apr 12 19:11:29 2004  Eric Hodel  <drbrain@segment7.net>
+	* ext/openssl/ossl_bn.c (Init_ossl_bn): Define #== and #hash.
 
-	* gc.c (rb_gc_copy_finalizer): typo.  [ruby-core:02774]
+	* test/openssl/test_bn.rb: Test BN#eql?, #== and #hash
 
-Mon Apr 12 18:52:32 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Wed May 18 10:17:41 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/openssl/ossl_x509name.c (ossl_x509name_init_i): should return
-	  a value.
+	* include/ruby/ruby.h (RB_INTEGER_TYPE_P): new macro and
+	  underlying inline function to check if the object is an
+	  Integer (Fixnum or Bignum).
 
-Mon Apr 12 10:43:47 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
+Wed May 18 09:52:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* dir.c (rb_glob2, rb_glob, rb_globi, push_globs, push_braces,
-	  rb_push_glob): fix memory leak. (leaked when block was interrupted)
+	* enum.c (enum_sum, hash_sum, hash_sum_i, enum_sum_i, sum_iter):
+	  Optimize for hashes when each method isn't redefined.
 
-Mon Apr 12 10:27:37 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
+Wed May 18 09:14:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* bcc32/Makefile.sub: backport SIZEOF_TIME_T definition from 1.9.
+	* enum.c (enum_sum, int_range_sum): Extract int_range_sum from
+	  enum_sum.
 
-	* win32/Makefile.sub: ditto.
+Wed May 18 03:16:06 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* wince/Makefile.sub: ditto.
+	* re.c (match_values_at): fix regression at r55036.
+	  MatchData#values_at accepts Range.
 
-Sun Apr 11 19:12:35 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed May 18 02:02:58 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* ruby.c (require_libraries): restore source file/line after
-	  statically linked extensions initialized.  [ruby-dev:23357]
+	* re.c (match_aref): remove useless condition and call rb_fix2int.
+	  rb_reg_nth_match handles negative index.
 
-Sun Apr 11 10:47:04 2004  Dave Thomas  <dave@pragprog.com>
+Wed May 18 01:57:43 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/rdoc/code_objects.rb (RDoc::TopLevel::add_class_or_module): Toplevel
-	  classes and modules are a special case too... (handle extending existing
-	  classes with or without :enddoc:)
+	* re.c (match_values_at): MatchData#values_at supports named captures
+	  [Feature #9179]
 
-Sat Apr 10 23:51:13 2004  Dave Thomas  <dave@pragprog.com>
+	* re.c (namev_to_backref_number): separated.
 
-	* lib/rdoc/code_objects.rb (RDoc::Context::add_to): Implementation of :enddoc:
-	  made one too many assumptions...
+Wed May 18 00:05:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-Sat Apr 10 00:00:19 2004  Dave Thomas  <dave@pragprog.com>
+	* enum.c (enum_sum): Optimize for a range from int to int.
 
-	* lib/rdoc/markup/simple_markup/inline.rb: Fix problem
-	  with \_cat_<b>dog</b>
+	* test/ruby/test_enum.rb (test_range_sum): Move from test_range.rb,
+	  and add assertions for some conditions.
 
-Wed Apr  7 00:19:50 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+	* test/ruby/test_enum.rb (test_hash_sum): Move from test_hash.rb.
 
-	* lib/rinda/rinda.rb: fix hash tuple bug.
+	* test/ruby/test_hash.rb, test/ruby/test_range.rb: Remove test_sum.
 
-	* lib/rinda/tuplespace.rb: ditto.
+Tue May 17 23:08:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* test/rinda/test_rinda.rb
+	* enum.c (enum_sum): [DOC] Write documentation.
 
-Tue Apr  6 18:24:18 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Tue May 17 22:53:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* io.c (rb_io_reopen): should use rb_io_check_io().
+	* enum.c (enum_sum): Implement Enumerable#sum.
 
-Tue Apr  6 16:46:09 2004  Tanaka Akira  <akr@m17n.org>
+	* test/ruby/test_enum.rb (test_sum): Test sum for Enumerable.
 
-	* configure.in: check the size of time_t.
+	* test/ruby/test_hash.rb (test_sum): Test sum for Hash.
 
-	* time.c (time_add): new function.
-	  (time_plus): use time_add.
-	  (time_minus): use time_add.
+	* test/ruby/test_range.rb (test_sum): Test sum for Range.
 
-Tue Apr  6 13:21:30 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
+Tue May 17 22:11:41 2016  Tanaka Akira  <akr@fsij.org>
 
-	* ext/socket/socket.c (make_hostent): must return value.
+	* object.c, numeric.c, enum.c, ext/-test-/bignum/mul.c,
+	  lib/rexml/quickpath.rb, lib/rexml/text.rb, lib/rexml/xpath_parser.rb,
+	  lib/rubygems/specification.rb, lib/uri/generic.rb,
+	  bootstraptest/test_eval.rb, basictest/test.rb,
+	  test/-ext-/bignum/test_big2str.rb, test/-ext-/bignum/test_div.rb,
+	  test/-ext-/bignum/test_mul.rb, test/-ext-/bignum/test_str2big.rb,
+	  test/csv/test_data_converters.rb, test/date/test_date.rb,
+	  test/json/test_json_generate.rb, test/minitest/test_minitest_mock.rb,
+	  test/openssl/test_cipher.rb, test/rexml/test_jaxen.rb,
+	  test/ruby/test_array.rb, test/ruby/test_basicinstructions.rb,
+	  test/ruby/test_bignum.rb, test/ruby/test_case.rb,
+	  test/ruby/test_class.rb, test/ruby/test_complex.rb,
+	  test/ruby/test_enum.rb, test/ruby/test_eval.rb,
+	  test/ruby/test_iseq.rb, test/ruby/test_literal.rb,
+	  test/ruby/test_math.rb, test/ruby/test_module.rb,
+	  test/ruby/test_numeric.rb, test/ruby/test_range.rb,
+	  test/ruby/test_rational.rb, test/ruby/test_refinement.rb,
+	  test/ruby/test_rubyvm.rb, test/ruby/test_struct.rb,
+	  test/ruby/test_variable.rb, test/rubygems/test_gem_specification.rb,
+	  test/thread/test_queue.rb: Use Integer instead of Fixnum and Bignum.
 
-Tue Apr  6 00:05:30 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+Tue May 17 15:26:10 2016  Tanaka Akira  <akr@fsij.org>
 
-	* lib/rinda/rinda.rb: add require 'drb/drb'
+	* [Feature #12005] Unify Fixnum and Bignum into Integer
 
-Mon Apr  5 08:18:23 2004  Dave Thomas  <dave@pragprog.com>
+	* include/ruby/ruby.h (rb_class_of): Return rb_cInteger for fixnums.
 
-	* lib/rdoc/rdoc.rb: Remove leading ./ from file names so that cross
-	  references work properly.
+	* insns.def (INTEGER_REDEFINED_OP_FLAG): Unified from
+	  FIXNUM_REDEFINED_OP_FLAG and BIGNUM_REDEFINED_OP_FLAG.
 
-Sun Apr  4 20:33:42 2004  Minero Aoki  <aamine@loveruby.net>
+	* vm_core.h: Ditto.
 
-	* eval.c (Init_load): make $LOADED_FEATURES built-in.
-	  [ruby-dev:23299]
+	* vm_insnhelper.c (opt_eq_func): Use INTEGER_REDEFINED_OP_FLAG instead
+	  of FIXNUM_REDEFINED_OP_FLAG.
 
-	* ruby.c (ruby_prog_init): make $PROGRAM_NAME built-in.
+	* vm.c (vm_redefinition_check_flag): Use rb_cInteger instead of
+	  rb_cFixnum and rb_cBignum.
+	  (C): Use Integer instead of Fixnum and Bignum.
 
-	* lib/English.rb: remove $LOADED_FEATURES and $PROGRAM_NAME.
+	* numeric.c (fix_succ): Removed.
+	  (Init_Numeric): Define Fixnum as Integer.
 
-Sun Apr  4 14:01:20 2004  Dave Thomas  <dave@pragprog.com>
+	* bignum.c (bignew): Use rb_cInteger instead of rb_cBignum.
+	  (rb_int_coerce): replaced from rb_big_coerce and return fixnums
+	  as-is.
+	  (Init_Bignum): Define Bignum as Integer.
+	  Don't define ===.
 
-	* lib/rdoc/options.rb (Options::parse): Allow multiple -x options to RDoc.
-	  Fix bug where files weren't being excluded properly
+	* error.c (builtin_class_name): Return "Integer" for fixnums.
 
-Sat Apr  3 17:11:05 2004  why the lucky stiff  <why@ruby-lang.org>
+	* sprintf.c (ruby__sfvextra): Use rb_cInteger instead of rb_cFixnum.
 
-	* ext/syck/syck.h: version 0.43.
+	* ext/-test-/testutil: New directory to test.
+	  Currently it provides utilities for fixnum and bignum.
 
-	* ext/syck/lib/gram.c: allow root-level inline collections.
-	 [ruby-talk:94922]
+	* ext/json/generator/generator.c: Define mInteger_to_json.
 
-	* lib/yaml/rubytypes.rb (Symbol#to_yaml): emit symbols as implicits.
-	 [ruby-talk:94930]
+	* lib/mathn.rb (Fixnum#/): Redefinition removed.
 
-	* ext/syck/bytecode.c: turn off default implicit typing.
+Tue May 17 11:58:58 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/syck/implicit.c: detect base60 integers.
+	* configure.in (RUBY_CHECK_BUILTIN_SETJMP): declare t as NORETURN
+	  to suppress warnings by -Wsuggest-attribute=noreturn.
+	  [ruby-core:75510] [Bug #12383]
 
-	* ext/syck/rubyext.c: handle base60, as well as hex and octal
-	  with commas.  implicit typing of ruby symbols.
+Tue May 17 10:40:18 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Apr  2 17:27:17 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* configure.in (RUBY_CHECK_SETJMP): needs the header and proper
+	  arguments for builtin setjmp functions.
 
-	* eval.c (top_include): include in the wrapped load is done for
-	  the wrapper, not for a singleton class for wrapped main.
-	  [ruby-dev:23305]
+Mon May 16 20:00:30 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Fri Apr  2 15:13:44 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* enc/unicode.h: Additional uses of ONIG_CASE_MAPPING compilation switch
 
-	* bignum.c (rb_big_eq): use temporary double variable to save the
-	  result (internal float register may be bigger than 64 bits, for
-	  example, 80 bits on x86).  [ruby-dev:23311]
+Mon May 16 19:46:33 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Fri Apr  2 14:35:26 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* include/ruby/oniguruma.h: Introducing ONIG_CASE_MAPPING compilation
+	  switch
 
-	* eval.c (block_pass): should generate unique identifier of the
-	  pushing block.  [ruby-talk:96363]
+	* include/ruby/oniguruma.h, enc/unicode.h: Using ONIG_CASE_MAPPING
+	  compilation switch
 
-Fri Apr  2 07:31:38 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Mon May 16 19:29:31 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/socket/socket.c (make_hostent): fix memory leak, based on
-	  the patch from HORIKAWA Hisashi <vzw00011@nifty.ne.jp>.
+	* gems/bundled_gems: Update xmlrpc-0.1.1. xmlrpc-0.1.0 didn't allow
+	  to install on 2.4.0dev.
 
-Thu Apr  1 22:55:33 2004  Dave Thomas  <dave@pragprog.com>
+Mon May 16 13:28:59 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rdoc/parsers/parse_rb.rb: Allow rdoc comments in
-	  =begin rdoc/=end
+	* configure.in (FUNC_STDCALL, FUNC_CDECL, FUNC_FASTCALL): set
+	  macro names explicitly to the old names, which are accidentally
+	  changed at r54985, for backward compatibilities.
+	  fiddle also depends on these names to fallback to ANSI names.
+	  [ruby-core:75494] [Bug #12377]
 
-	* lib/rdoc/parsers/parse_rb.rb: Fix problem with comment in
-	  top-level method being taken as file comment.
+Mon May 16 11:39:02 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Apr  1 22:55:04 2004  Dave Thomas  <dave@pragprog.com>
+	* lib/xmlrpc.rb, lib/xmlrpc/*, test/xmlrpc: XMLRPC is bundled gem
+	  on Ruby 2.4. It is extracted to https://github.com/ruby/xmlrpc
+	  [Feature #12160][ruby-core:74239]
+	* gems/bundled_gems: ditto.
 
-	* lib/rdoc/ri/ri_options.rb: Fix undefined variable warning.
+Mon May 16 06:06:21 2016  Eric Wong  <e@80x24.org>
 
-Thu Apr  1 19:58:37 2004  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* proc.c: fix RDoc of Proc#===/call/yield/[]
+	  [Bug #12332]
 
-	* lib/soap/mapping/{factory.rb,registry.rb}: fixed illegal mapped URI
-	  object with soap/marshal.
-	  added URIFactory class for URI mapping.  BasetypeFactory checks
-	  instance_variables when original mapping is not allowed (ivar must
-	  be empty).  Instance of URI have instance_variables but it must be
-	  llowed whenever original mapping is allowed or not.
+Sun May 15 20:55:31 2016  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
 
-	* lib/xsd/datatypes.rb: check the smallest positive non-zero
-	  single-precision float exactly instead of packing with "f".
-	  [ruby-talk:88822]
+	* lib/drb/timeridconv.rb: don't use keeper thread. [Bug #12342]
 
-	* lib/soap/mapping/rubytypeFactory.rb: should not dump singleton class.
-	  [ruby-dev:22588]
-	  c = class << Object.new; class C; self; end; end; SOAPMarshal.dump(c)
+	* test/drb/ut_timerholder.rb: ditto.
 
-Wed Mar 31 19:06:23 2004  Tanaka Akira  <akr@m17n.org>
+Sun May 15 16:15:25 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* time.c (year_leap_p): new function.
-	  (timegm_noleapsecond): ditto.
-	  (search_time_t): use timegm_noleapsecond instead of
-	  mktime for first guess.
+	* array.c (rb_ary_entry): extract rb_ary_elt to organize if-conditions
+	  and check whether is embedded at once.
 
-Wed Mar 31 12:04:04 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun May 15 10:57:26 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/delegate.rb (DelegateClass): define internal methods of the
-	  result class, but not metaclass of the caller.  [ruby-talk:96156]
+	* vm_insnhelper.c (vm_get_ev_const): warn deprecated constant even
+	  in the class context.  [ruby-core:75505] [Bug #12382]
 
-	* intern.h: provide proper prototypes.  [ruby-core:02724]
+Sun May 15 03:13:01 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* ruby.h: missing.h is now prerequisite to intern.h.
+	* iseq.h (struct iseq_compile_data): use struct rb_id_table
+	  instead of st_table.
 
-Tue Mar 30 20:25:34 2004  Tanaka Akira  <akr@m17n.org>
+	* iseq.c (prepare_iseq_build): don't allocate ivar_cache_table
+	  until it has at least one element.
 
-	* time.c (search_time_t): limit guess range by mktime if it is
-	  available.  [ruby-dev:23274]
+	* iseq.c (compile_data_free): free ivar_cache_table only if it
+	  is allocated.
 
-Sun Mar 28 14:16:59 2004  Minero Aoki  <aamine@loveruby.net>
+	* compile.c (get_ivar_ic_value): allocate if the table is not
+	  allocated yet.
 
-	* lib/net/pop.rb (auth): failed when account/password include "%".
-	  [ruby-talk:95933]
+Sat May 14 09:04:34 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Mar 27 21:40:41 2004  Tanaka Akira  <akr@m17n.org>
+	* lib/mkmf.rb (pkg_config): use xsystem consistently to set up
+	  library path environment variable as well as latter pkg-config
+	  calls.  [ruby-dev:49619] [Bug #12379]
 
-	* lib/open-uri.rb: permit extra semicolon in content-type field.
+Sat May 14 00:16:54 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Mar 27 10:40:48 2004  Tanaka Akira  <akr@m17n.org>
+	* random.c (make_seed_value): append leading-zero-guard and get
+	  rid of making a local copy of the seed.
 
-	* (lib/pp.rb, lib/prettyprint.rb): define seplist in PP::PPMethods
-	  instead of PrettyPrint.
+Fri May 13 08:46:42 2016  cremno  <cremno@mail.ru>
 
-Thu Mar 25 23:28:52 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* NEWS: drop FreeBSD < 4 support.  [Fix GH-1339]
+	  The most recent version affected by this is 3.5 and was released
+	  in 2000.
+	  https://www.freebsd.org/releases/3.5R/announce.html
+	  https://en.wikipedia.org/wiki/History_of_FreeBSD#Version_history
 
-	* time.c (time_overflow_p): backport 1.9 usec overflow function.
-	  (ruby-bugs PR#1307)
+Fri May 13 03:12:09 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Thu Mar 25 23:15:24 2004  Dave Thomas  <dave@pragprog.com>
+	* include/ruby/defines.h (GCC_VERSION_SINCE): moved from internal.h.
 
-	* lib/rdoc/ri/ri_options.rb (RI::Options::show_version):
-	  Add --version option
+Fri May 13 03:11:20 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Thu Mar 25 04:16:18 2004  Dave Thomas  <dave@pragprog.com>
+	* configure.in (__builtin_constant_p): check.
 
-	* lib/rdoc/ri/ri_options.rb (RI::Options): Add the --list-names option,
-	  which dumps our all known names
+	* internal.h: Use HAVE_BUILTIN___BUILTIN_CONSTANT_P
 
-Thu Mar 25 03:57:47 2004  Dave Thomas  <dave@pragprog.com>
+Fri May 13 03:10:39 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/rdoc/ri/ri_util.rb (NameDescriptor::initialize): No longer
-	  allow nested classes to be designated using "."--you must
-	  now use "::"
+	* configure.in: use alternative keyword
+	  to avoid macros conflicts with them.
 
-Thu Mar 25 02:00:18 2004  Dave Thomas  <dave@pragprog.com>
+Thu May 12 01:54:08 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rdoc/generators/template/html/one_page_html.rb (Page):
-	  Fix to work with C modules.
+	* lib/mkmf.rb (try_func): get rid of conflict of declarations of
+	  main().  checking local symbol reference does not make sense.
 
-Wed Mar 24 21:17:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
+Thu May 12 00:18:19 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* lib/uri.rb: Documented (thanks Dmitry V. Sabanin).
-	* lib/uri/common.rb: Ditto.
-	* lib/uri/ftp.rb: Ditto.
-	* lib/uri/generic.rb: Ditto.
-	* lib/uri/http.rb: Ditto.
-	* lib/uri/https.rb: Ditto.
-	* lib/uri/ldap.rb: Ditto.
-	* lib/uri/mailto.rb: Ditto.
-	  (All backported from 1.9)
+	* win32/Makefile.sub (HAVE_QSORT_S): use qsort_s only for Visual Studio
+	  2012 or later, because VS2010 seems to causes a SEGV in
+	  test/ruby/test_enum.rb.
 
-Wed Mar 24 18:48:26 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed May 11 23:59:47 2016  Masaya Tarui  <tarui@ruby-lang.org>
 
-	* lib/mkmf.rb ($ruby, $topdir, $hdrdir): should not be affected by
-	  DESTDIR after installed.
+	* vm_insnhelper.c (vm_getivar): describe fast-path explicit
+	  (compiler friendly). [Bug #12274].
 
-	* lib/mkmf.rb (RUBY): / is not recognized as path separator on
-	  nmake/bmake. [ruby-list:39388]
+Wed May 11 21:30:07 2016  Masaya Tarui  <tarui@ruby-lang.org>
 
-	* lib/mkmf.rb (init_mkmf): $INCFLAGS also should be lazy-evaluated.
+	* compile.c (iseq_compile_each): share InlineCache during same
+	  instance variable accesses. Reducing memory consumption,
+	  rising cache hit rate and rising branch prediction hit rate
+	  are expected. A part of [Bug #12274].
 
-Wed Mar 24 12:32:56 2004  Dave Thomas  <dave@pragprog.com>
+	* iseq.h (struct iseq_compile_data): introduce instance
+	  variable IC table for sharing.
 
-	* lib/rdoc/parsers/parse_c.rb (RDoc::C_Parser::handle_class_module):
-	  Don't document methods if we don't know for sure the
-	  class or module.
+	* iseq.c (prepare_iseq_build, compile_data_free):
+	  construct/destruct above table.
 
-	* lib/rdoc/parsers/parse_rb.rb (RDoc::RubyParser::parse_class):
-	  Don't store documentation for singleton classes if we
-	  don't know the real class.
+Wed May 11 17:18:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Mar 24 11:11:26 2004  Dave Thomas  <dave@pragprog.com>
+	* util.c (ruby_qsort): use qsort_s if available, for Microsoft
+	  Visual Studio 2005 (msvcr80.dll) and mingw.
 
-	* lib/rdoc/generators/html_generator.rb (Generators::HTMLGenerator::load_html_template):
-	  Allow non-RDoc templates by putting a slash in the template name
+Wed May 11 10:33:26 2016  Marcus Stollsteimer  <sto.mar@web.de>
 
-Mon Mar 22 16:19:57 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
+	* COPYING: Remove trailing-whitespaces.
+	  [ci skip][fix GH-1348]
 
-	* ruby.1: add -width option to .Bl for old groff.
+Tue May 10 21:05:45 2016  Benoit Daloze  <eregontp@gmail.com>
 
-Sun Mar 21 21:11:16 2004  Keiju Ishitsuka  <keiju@ishitsuka.com>
+	* insns.def (defineclass): Also raise an error when redeclaring the
+	  superclass of a class as Object and it has another superclass.
+	  [Bug #12367] [ruby-core:75446]
 
-	* lib/shell/*: bug fix for Shell#system(command_line_string).
+	* test/ruby/test_class.rb: test for above.
 
-Sat Mar 20 20:57:10 2004  David Black  <dblack@wobblini.net>
+Tue May 10 14:57:09 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/scanf.rb: Backported 1.9 branch
-	  modifications/corrections to 1.8 branch
+	* random.c (obj_random_bytes): base on bytes method instead of
+	  rand method, not to call toplevel rand method.
 
-Sat Mar 20 23:51:03 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
+Tue May 10 13:07:28 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* eval.c (rb_require_safe): preserve old ruby_errinfo.
-	  [ruby-talk:95409]
+	* configure.in (-fexcess-precision=standard): before r54895 -std=c99
+	  is specified and it implied -fexcess-precision=standard.
+	  Now with -std=gnu99, it should be explicitly specified.
+	  https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html
 
-	* eval.c (rb_f_raise): should not clear backtrace information if
-	  exception object already have one.
+Mon May  9 10:51:59 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Mar 20 15:25:36 2004  Dave Thomas  <dave@pragprog.com>
+	* thread.c (rb_thread_atfork_internal): move th to an argument.
 
-	* lib/rdoc/generators/template/html/html.rb (RDoc::Page): Force
-	  page background to white.
+	* thread.c (rb_thread_atfork): do not repeat GET_THREAD().
 
-Sat Mar 20 09:52:33 2004  Tadayoshi Funaba  <tadf@dotrb.org>
+Mon May  9 10:46:36 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/date.rb, lib/date/format.rb: _parse() now accepts fractional
-	  part of second minute that follows a comma or a full stop.
+	* thread.c (rb_thread_atfork, rb_thread_atfork_before_exec): do
+	  nothing unless working fork is available.
 
-Fri Mar 19 01:55:57 2004  Mauricio Fernandez  <batsman.geo@yahoo.com>
+	* thread_sync.c (rb_mutex_abandon_all): define only if working
+	  fork is available.
 
-	* io.c (rb_io_sync): need not to check writable. [ruby-core:02674]
+	* thread_sync.c (rb_mutex_abandon_keeping_mutexes): ditto.
 
-Thu Mar 18 21:44:38 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+	* thread_sync.c (rb_mutex_abandon_locking_mutex): ditto.
 
-	* lib/drb/drb.rb: backport drb.rb 1.16.
+	* thread_win32.c (gvl_init): never used.
 
-Fri Mar 18 17:49:51 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Mon May  9 07:18:06 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* struct.c (make_struct): allow const_id for accessor names.
-	  [ruby-core:04585]
+	* include/ruby/{defines,ruby}.h: need to define function attributes
+	  alternatives in defines.h instead of ruby.h, because they are used
+	  in oniguruma.h and the header used without including ruby.h at
+	  encoding library sources.
 
-	* eval.c (rb_attr): check if attribute name is local_id or
-	  const_id.
+Mon May  9 06:30:12 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Thu Mar 18 16:22:38 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* include/ruby/ruby.h (CONSTFUNC, PUREFUNC): fixed build errors on
+	  non-gcc build environments introduced at r54952.
 
-	* eval.c (proc_eq): avoid false positive by using scope and
-	  dyna_vars.  no longer use frame.uniq.
+Mon May  9 02:51:51 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Wed Mar 17 14:44:43 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
+	* gc.c (rb_gc_unprotect_logging): throw rb_memerror when it cannot
+	  allocate memory. This is pointed out by Facebook's Infer.
 
-	* dir.c (range): fix possible "\0" overrun. (in case of "\0-")
+	* gc.c (gc_prof_setup_new_record): ditto.
 
-Mon Mar 15 07:39:13 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* regparse.c (parse_regexp): ditto.
 
-	* eval.c (rb_yield_0): should not re-submit TAG_BREAK if this
-	  yield is not break destination. [ruby-dev:23197]
+	* util.c (MALLOC): use xmalloc and xfree like above.
 
-Sat Mar 13 14:28:16 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+Mon May  9 02:39:16 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* test/drb/test_drbssl.rb: rescue LoadError. (Barkport from main
-	  trunk)
+	* configure.in: check function attribute const and pure,
+	  and define CONSTFUNC and PUREFUNC if available.
+	  Note that I don't add those options as default because
+	  it still shows many false-positive (it seems not to consider
+	  longjmp).
 
-	* test/drb/test_drbunix.rb: ditto.
+	* vm_eval.c (stack_check): get rb_thread_t* as an argument
+	  to avoid duplicate call of GET_THREAD().
 
-Wed Mar 10 22:28:09 2004  Minero Aoki  <aamine@loveruby.net>
+Sun May  8 21:01:14 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/fileutils.rb (remove_dir): should handle symlink correctly.
-	  This patch is contributed by Christian Loew.  [ruby-talk:94635]
-	  (Backport from main trunk)
+	* ext/openssl/extconf.rb: assume it doesn't have SSLv2 related
+	  functions when OPENSSL_NO_SSL2 is defined.
+	  Usually openssl's header and the library (libssl) have the same
+	  set of functions, but on some environment the library has functions
+	  whose headers doesn't declare. (openssl/opensslconf.h and libssl.so
+	  aren't be synchronized)
+	  To detect such case explicitly check feature macro and remove
+	  related functions.
 
-Wed Mar 10 16:28:42 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Sun May  8 18:51:33 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* eval.c (return_jump): set return value to the return
-	  destination.  separated from localjump_destination().
+	* file.c (rb_home_dir_of): return the default home path if the
+	  user name is the current user name, on platforms where struct
+	  pwd is not supported.  a temporary measure against
+	  [Bug #12226].
 
-	* eval.c (break_jump): break innermost loop (or thread or proc).
+Sun May  8 08:51:38 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* eval.c (rb_yield_0): set exit_value for block break.
+	* configure.in: add -Wsuggest-attribute=format and suppress warnings.
 
-Wed Mar 10 15:58:43 2004  Ryan Davis  <ryand@zenspider.com>
+Sun May  8 08:31:03 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* eval.c (eval): Only print backtrace if generating the backtrace
-	  doesn't generate an exception.  [ruby-core:02621]
+	* configure.in: add -Wsuggest-attribute=noreturn and suppress warnings.
 
-Tue Mar  9 13:04:26 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Sun May  8 08:19:16 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* io.c (rb_io_ungetc): raise IOError instead of calling
-	  rb_sys_fail().  [ruby-talk:23181]
+	* configure.in: add -Werror=implicit-int to avoid missing type of
+	  function declaration.
 
-Mon Mar  8 19:32:28 2004  akira yamada  <akira@ruby-lang.org>
+Sat May  7 22:22:37 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* lib/uri/common.rb (URI::REGEXP::PATTERN::HOSTPORT): (?:#{PORT})
-	  -> (?::#{PORT}).  [ruby-dev:23170]
+	* lib/webrick/ssl.rb: Accept string value for SSLCertName. It is used
+	  to invoke ssl server with command line.
+	  [fix GH-1329] Patch by @kerlin
+	* test/webrick/test_ssl_server.rb: Added test for GH-1329
 
-Mon Mar  8 15:31:41 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
+Sat May  7 21:55:12 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* dir.c (range): treat incomplete '[' as ordinary character (like
-	  has_magic does).
+	* test/webrick/test_ssl_server.rb: Added basic test for `webrick/ssl`
 
-	* dir.c (range):  Cancel above change. More discussion is needed.
+Sat May  7 16:22:13 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Mar  7 22:37:46 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+	* random.c (int_pair_to_real_inclusive): optimize to multiply
+	  without Bignum.
 
-	* test/drb/ut_drb.rb: use 'druby://localhost:0'. [ruby-dev:23078]
+Sat May  7 07:58:02 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/drb/ut_eval.rb: ditto.
+	* process.c (rb_exec_getargs): honor the expected argument types
+	  over the conversion method.  the basic language functionality
+	  should be robust.  [ruby-core:75388] [Bug #12355]
 
-	* test/drb/ut_large.rb: ditto.
+Fri May  6 08:16:26 2016  David Silva  <david.silva@digital.cabinet-office.gov.uk>
 
-	* test/drb/ut_safe1.rb: ditto.
+	* enum.c (enum_find): [DOC] add more examples to the documentation
+	  of Enumerable#detect, to show that it equals to Enumerable#find.
+	  [Fix GH-1340]
 
-	* test/drb/ut_drb_drbssl.rb: use 'drbssl://localhost:0'.
+Thu May  5 18:08:31 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
 
-Sun Mar  7 16:22:26 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
+	* test/ruby/test_complexrational.rb: Remove duplicated raise.
 
-	* Makefile.in (lex.c): use $? instead of $<.
+Thu May  5 14:41:05 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
 
-Fri Mar  5 00:54:14 2004  Dave Thomas  <dave@pragprog.com>
+	* string.c (rb_str_sub): Fix a special match variable name.
+	  [ci skip]
 
-	* lib/test/unit.rb: MOve RDoc documentation so that you can
-	  now say 'ri Test::Unit'
+Thu May  5 12:22:17 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Mar  2 12:32:59 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* vm_eval.c (rb_eval_cmd, rb_catch_obj): use TH_JUMP_TAG with the
+	  same rb_thread_t used for TH_PUSH_TAG, instead of JUMP_TAG with
+	  the current thread global variable.
 
-	* win32/Makefile.sub, wince/Makefile.sub (config.h): shouldn't check
-	  defined? NORETURN. [ruby-dev:23100]
+Thu May  5 10:49:33 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Mar  1 12:24:10 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_rb.rb (RDoc::RubyParser::parse_alias):
-	  Allow aliases to have parentheses
-
-Sun Feb 29 23:14:53 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_rb.rb (RDoc::RubyParser::parse_class):
-	  Handle :nodoc: on singleton classes.
-
-Sat Feb 28 10:58:49 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* MANIFEST: add test_erb.rb
-
-	* lib/erb.rb, test/erb/test_erb.rb: don't forget filename,
-	  if both filename and safe_level given. [ruby-dev:23050]
-
-Fri Feb 27 01:00:09 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/drb.rb, test/drb/drbtest.rb: require drb/eq.rb by default
-
-Wed Feb 25 21:16:25 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* instruby.rb (with_destdir): should return the given argument if no
-	  DESTDIR is given.
-
-	* instruby.rb: use path name expansion of cmd.exe.
-
-Wed Feb 25 09:35:22 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* error.c (NameError::Message): new class for lazy evaluation of
-	  message to ensure replaced before marshalling. merge from HEAD.
-	  (ruby-bugs-ja:PR#588)
-
-	* eval.c (rb_method_missing): use NameError::Message. merge from
-	  HEAD. (ruby-bugs-ja:PR#588)
-
-Tue Feb 24 18:59:37 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* dir.c (glob_helper): '**/' should not match leading period
-	  unless File::FNM_DOTMATCH is set. (like '*/') [ruby-dev:23014]
-
-Tue Feb 24 13:22:21 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/rdoc.rb (RDoc::RDoc::normalized_file_list): Attempt to get better
-	  heuristics on which files to include and exclude. Now only include
-	  non-standard files if they are explicitly named in ARGV.
-
-Tue Feb 24 07:23:30 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/generators/html_generator.rb: Deal with :stopdoc: when
-	  choosing a default main page to display (ie. don't select a page
-	  if we don't have documentation for it).
-
-Tue Feb 24 06:40:14 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_rb.rb (RubyLex::identify_identifier): Handle
-	  class variables in code listings
-
-Tue Feb 24 06:40:14 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_rb.rb (RubyLex::identify_identifier): Handle
-	  class variables in code listings
-
-Tue Feb 24 06:32:27 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_c.rb (RDoc::C_Parser::do_aliases): Handle
-	  aliases in C files.
-
-Tue Feb 24 06:16:22 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/rdoc.rb (RDoc::RDoc::document): Now create op dir _before_
-	  parsing files.
-
-Tue Feb 24 06:08:47 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_rb.rb (RDoc::RubyParser::parse_constant):
-	  Start collecting text of constant values earlier: was missing
-	  values in output if there was no space after '='
-
-Tue Feb 24 06:08:25 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/generators/html_generator.rb: Escape contant values.
-
-Tue Feb 24 03:45:06 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_config.c (ossl_config_each): add new method
-	  OpenSSL::Config#each. it iterates with section name, field name
-	  and value.
-
-	* ext/openssl/ossl_config.c (Init_ossl_config): include Enumerable.
-
-Mon Feb 23 09:16:35 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* instruby.rb (DOSISH): embedded path in batch files should not be
-	  prefixed by DESTDIR.  [ruby-core:02186]
-
-Sun Feb 22 09:54:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
-
-	* re.c: corrected documentation format (again)
-
-Sun Feb 22 09:43:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
-
-	* re.c: corrected documentation format (rb_reg_initialize_m)
-
-Sat Feb 21 22:36:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
-
-	* ext/zlib/zlib.c: documented, but needs more effort.
-
-Sat Feb 21 11:12:15 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* missing/os2.c, missing/x68.c: typo fix.  pointed out by greentea.
-
-Fri Feb 20 18:59:47 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/irb/init.rb (IRB::IRB.parse_opts): add -I option to
-	  irb. [ruby-dev:39243]
-
-Thu Feb 19 23:24:16 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/generators/html_generator.rb (Generators::HtmlClass::build_attribute_list):
-	  Support visibility modifiers for attributes
-
-Thu Feb 19 23:24:16 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/generators/html_generator.rb (Generators::HtmlClass::build_attribute_list):
-	  Support visibility modifiers for attributes
-
-Thu Feb 19 22:39:04 2004  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* test/rinda/test_rinda.rb: DRb.start_service only once in testsuites.
-	  DRb.start_service could handle this.
-
-Thu Feb 19 22:19:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
-
-	* lib/ostruct.rb: documented
-
-Thu Feb 19 21:28:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
-
-	* ext/strscan/strscan.c: improved documentation
-
-Thu Feb 19 03:10:52 2004  Minero Aoki  <aamine@loveruby.net>
-
-	* ext/strscan/strscan.c: synchronized with main trunk (rev 1.11).
-
-Thu Feb 19 02:30:34 2004  Minero Aoki  <aamine@loveruby.net>
-
-	* ext/strscan/strscan.c: documentation checked.
-
-Thu Feb 19 00:11:05 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/markup/simple_markup/preprocess.rb (SM::PreProcess::handle):
-	  Strip extraneous space from filenames in :include:
-
-Wed Feb 18 22:52:00 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/unix.rb: remove O_NONBLOCK, thanks \ay
-
-Wed Feb 18 22:47:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
-
-	* ext/strscan/strscan.c: documented
-
-Wed Feb 18 22:03:11 2004  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* test/*: should not depend on $KCODE.
-
-Wed Feb 18 17:18:01 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* ext/win32ole/win32ole.c: need to include <olectl.h> on Cygwin.
-
-Wed Feb 18 10:40:38 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* sprintf.c (rb_f_sprintf): do not prepend dots for negative
-	  numbers if FZERO is specified.  [ruby-list:39218]
-
-Tue Feb 17 23:40:34 2004  Guy Decoux  <ts@moulon.inra.fr>
-
-	* sprintf.c (rb_f_sprintf): preserve original val for
-	  format_integer. [ruby-talk:92975]
-
-Tue Feb 17 23:28:45 2004  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* test/ruby/marshaltestlib.rb: common marshal testcase added.
-
-	* test/ruby/test_marshal.rb: use above testsuite.
-
-	* test/soap/marshal/test_marshal.rb: ditto.
-
-	* test/soap/marshal/cmarshal.rb: removed (not used).
-
-Tue Feb 17 10:51:23 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/syck/rubyext.c (syck_emitter_end_object): takes only one arg.
-
-Tue Feb 17 01:35:28 2004  Tanaka Akira  <akr@m17n.org>
-
-	* eval.c (rb_eval): care that another thread replace NODE_DREGX_ONCE
-	  to NODE_LIT.  [ruby-dev:22920]
-
-Tue Feb 17 01:24:35 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* bcc32/Makefile.sub, win32/Makefile.sub (config.h): define
-	  STACK_GROW_DIRECTION. [ruby-dev:22910]
-
-	* bcc32/Makefile.sub (config.h): add newer checks.
-
-	* wince/Makefile.sub (config.h): define NEED_IO_SEEK_BETWEEN_RW.
-
-Tue Feb 17 00:38:10 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/rinda/tuplespace.rb: TupleSpace#initialize, stop doubling timeout
-
-Tue Feb 17 00:18:03 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* test/rinda/test_rinda.rb: import test_rinda.rb
-
-Tue Feb 17 00:14:30 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* bcc32/Makefile.sub: avoid warning "Redefinition of macro
-	  'HAVE_GETLOGIN'".
-
-	* vms/config.h_in: ditto.
-
-Mon Feb 16 23:28:14 2004  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* lib/csv.rb: document reduction.  [ruby-core:02429]
-
-Mon Feb 16 22:08:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
-
-	* lib/generator.rb: corrected doc format
-	* lib/rinda/rinda.rb: added documentation (from Hugh Sasse)
-	* lib/rinda/tuplespace.rb: ditto
-
-Mon Feb 16 20:41:32 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* bcc32/Makefile.sub: show more warnings. (refering to mingw)
-
-	* bcc32/setup.mak: ditto.
-
-Mon Feb 16 13:39:44 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* dir.c (rb_glob, rb_globi): add const.
-
-	* ruby.h: ditto.
-
-Mon Feb 16 02:16:33 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* bcc32/Makefile.sub: should warn suspicious pointer conversion.
-
-	* bcc32/setup.mak: ditto.
-
-Sun Feb 15 19:06:42 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/rinda/tuplespace.rb: TupleSpace#read(tpl, 0), raise
-	  RequestExpiredError if not found.
-
-Sun Feb 15 15:56:46 2004  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/win32ole.c: add IDispatch wrapper in val2variant.
-	  Thanks, arton.
-
-Sun Feb 15 01:46:05 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/mkmf.rb: absolute path of ruby is assigned to $(RUBY).
-	  [ruby-dev:22870]
-
-Sat Feb 14 11:29:41 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* sample/drb/*: import lib/drb/sample
-
-Sat Feb 14 11:08:23 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/drb.rb: add pretty_print, thanks gotoken.
-
-Fri Feb 13 12:35:08 2004  Minero Aoki  <aamine@loveruby.net>
-
-	* test/fileutils/test_fileutils.rb: File.link may raise EINVAL and
-	  EACCES on Windows.
-
-Thu Feb 12 21:45:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
-
-	* lib/ftools.rb: documented
-
-Thu Feb 12 21:25:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
-
-	* lib/base64.rb: backported from HEAD (modularised and documented)
-
-Thu Feb 12 20:31:48 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (create_tmpsrc): cpp32 of Borland C++ ignores #error
-	  directives in DOS line-ending files at all.
-
-Thu Feb 12 02:23:56 2004  Tanaka Akira  <akr@m17n.org>
-
-	* lib/pathname.rb: use assert_raise instead of assert_raises.
-
-	* lib/pp.rb: ditto.
-
-	* lib/time.rb: ditto.
-
-	* lib/tsort.rb: ditto.
-	  use TSortHash and TSortArray instead of Hash and Array in test.
-
-Wed Feb 11 20:01:12 2004  akira yamada  <akira@ruby-lang.org>
-
-	* test/ruby/test_file.rb (TestFile::test_fnmatch): added tests for
-	  File.fnmatch. [ruby-dev:22815][ruby-dev:22819]
-
-	* test/ruby/test_proc.rb (TestProc::test_eq): added a
-	  test.  [ruby-dev:22599]
-
-	* test/ruby/test_proc.rb (TestProc::test_eq): added tests for
-	   Proc#==.  [ruby-dev:22592], [ruby-dev:22601]
-
-Tue Feb 10 16:43:56 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (umethod_bind): purge unused check.  [ruby-dev:22850]
-
-Mon Feb  9 17:16:00 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* lib/rdoc/parsers/parse_c.rb: escape '{' and '}' to avoid warnings.
-
-Mon Feb  9 13:00:55 2004  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
-
-	* dir.c (fnmatch): File.fnmatch('*?', 'a') should return true.
-	  [ruby-dev:22815]
-
-	* dir.c (fnmatch): File.fnmatch('\[1\]' , '[1]') should return true.
-	  [ruby-dev:22819]
-
-Sun Feb  8 16:46:13 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/pp.rb (PP::PPMethods::object_address_group): suppress negative
-	  sign for higher heap areas.
-
-Fri Feb  6 22:48:16 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/generators/html_generator.rb (gen_url): Support
-	  https in RDoc hyperlinks
-
-Fri Feb  6 22:41:22 2004  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* lib/pp.rb (PPInspectTest#test_to_s_with_iv): rollback the previous
-	  commit.  [ruby-dev:22813]
-
-Fri Feb  6 22:22:50 2004  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* lib/pp.rb (PPInspectTest#test_to_s_with_iv): remove instance
-	  variable which is defined in the test.
-
-Fri Feb  6 00:48:37 2004  Tanaka Akira  <akr@m17n.org>
-
-	* lib/prettyprint.rb (PrettyPrint#first?): obsoleted.
-
-Thu Feb  5 23:56:55 2004  Tanaka Akira  <akr@m17n.org>
-
-	* lib/prettyprint.rb (PrettyPrint#seplist): added.
-
-	* lib/pp.rb (PPMethods#pp_object): use seplist.
-	  (PPMethods#pp_hash): ditto.
-	  (Array#pretty_print): ditto.
-	  (Struct#pretty_print): ditto.
-	  (MatchData#pretty_print): ditto.
-
-	* lib/set.rb (Set#pretty_print): use seplist.
-
-Wed Feb  4 02:12:06 2004  Tanaka Akira  <akr@m17n.org>
-
-	* file.c (test_l): fix wrong method name in document.
-	  (test_S): ditto.
-	  (test_b): ditto.
-	  (test_c): ditto.
-	  (test_suid): ditto.
-	  (test_sgid): ditto.
-	  (test_sticky): ditto.
-
-Tue Feb  3 08:04:57 2004  Tanaka Akira  <akr@m17n.org>
-
-	* lib/pp.rb (Struct#pretty_print_cycle): follow 1.8 style.
-
-Mon Feb  2 19:33:49 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* configure.in: backport from 1.9 for Interix.
-
-	* dln.c (dln_load): ditto.
-
-Mon Feb  2 13:31:51 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* lib/net/http.rb (canonical_each): fix merge miss.
-
-Mon Feb  2 01:54:00 2004  Tanaka Akira  <akr@m17n.org>
-
-	* lib/pp.rb (Struct#pretty_print): make it 1.8 style.
-	  (Numeric#pretty_print, FalseClass#pretty_print)
-	  (TrueClass#pretty_print, Module#pretty_print): fix pp for objects
-	  with instance variables.  [ruby-talk:91157]
-
-	* lib/open-uri.rb (URI::Generic#find_proxy): return nil on loopback
-	  address.
-
-	* lib/resolv-replace.rb (BasicSocket#send): don't replace because
-	  it has no hostname argument.
-	  (IPSocket.getaddress): raise SocketError instead of
-	  Resolv::ResolvError for errors.
-	  (TCPSocket#initialize, UDPSocket#bind, UDPSocket#connect)
-	  (SOCKSSocket#initialize): use IPSocket.getaddress instead of
-	  Resolv.getaddress.
-	  (UDPSocket#send): recognize 3 arguments form.  try all addresses on
-	  4 arguments form.
-
-Sun Feb  1 18:17:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
-
-	* lib/net/http.rb: merged coding style changes from HEAD.
-
-Sun Feb  1 16:15:00 2004  Gavin Sinclair  <gsinclair@soyabean.com.au>
-
-	* lib/test/unit.rb: rearranged documentation for RDoc's sake.
-	* lib/matrix.rb: improved documentation.
-	* lib/net/http.rb: slight documentation formatting improvement.
-
-Sun Feb  1 05:30:06 2004  Tanaka Akira  <akr@m17n.org>
-
-	* lib/open-uri.rb (URI::Generic#find_proxy): warn HTTP_PROXY.
-	 raise an errror on non-http proxy URI.
-	 (OpenURI::Buffer#<<): make a tempfile binmode.  [ruby-talk:90793]
-
-Sat Jan 31 09:20:32 2004  NAKAMURA, Hiroshi  <nakahiro@sairon.co.jp>
-
-	* sample/openssl/gen_csr.rb: wrong usage string.
-
-Sat Jan 31 01:00:32 2004  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* lib/soap/wsdlDriver.rb, lib/wsdl/soap/operation.rb: add support of
-	  "parts" attribute of soap:body element in WSDL.
-
-	* lib/wsdl/xmlSchema/schema.rb: friendly warning message for
-	  simpleType element which is not supported for now.
-
-	* lib/soap/mapping/factory.rb: deleted unused methods.
-
-	* lib/soap/mapping/rubytypeFactory.rb: do no ignore case while xsi:type
-	  string <-> Ruby class name matching.
-
-	* test/wsdl/soap/{soapbodyparts.wsdl,test_soapbodyparts.wsdl}: new
-	  files.
-
-Thu Jan 29 23:56:00 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* util.c (mblen): fix overrun.  [ruby-dev:22672]
-
-Thu Jan 29 22:41:53 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/generators/html_generator.rb: Allow 'link:' in Tidylinks.
-	  THis means you can write "see f1[link:files/f1_rb.html]".
-
-Thu Jan 29 15:33:23 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_x509hame.c (ossl_x509name_initialize): change
-	  second argument. it expected to be a Hash not an Integer.
-
-	* ext/openssl/ossl_x509name.c (ossl_x509name_add_entry): add new
-	  function for OpenSSL::X509::Name#add_entry.
-
-	* ext/openssl/ossl_x509name.c (ossl_x509name_to_a): append ASN.1
-	  tag number to each element of return value.
-
-	* ext/openssl/ossl_x509name.c (Init_ossl_x509name): add constants
-	  OpenSSL::X509::Name::DEFAULT_OBJECT_TYPE and OBJECT_TYPE_TEMPLATE.
-
-	* ext/openssl/lib/openssl/x509.rb (OpenSSL::X509::Name#initialize):
-	  second argument takes OBJECT_TYPE_TEMPLATE by default.
-
-	* sample/openssl/gen_csr.rb: use OpenSSL::X509::Name.parse.
-
-Wed Jan 28 04:29:41 2004  Eric Schwartz  <emschwar@fc.hp.com>
-
-	* lib/cgi/session.rb: use LOCK_SH to read, and a few other
-	  improvements.  [ruby-core:02328]
-
-Tue Jan 27 11:09:29 2004  FUKUMOTO Atsushi  <fukumoto@nospam.imasy.or.jp>
-
-	* ext/socket/socket.c (s_recvfrom): sending length should be an
-	  invariant while retrying on EAGAIN.  [ruby-talk:89962]
-
-Tue Jan 27 10:35:18 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/win32ole/win32ole.c (set_argv): fix condition.
-
-Tue Jan 27 02:26:31 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/httputils.rb (WEBrick:HTTPUtils::parse_header):
-	  refine regex for header-name.
-
-Tue Jan 27 00:30:11 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/Makefile.sub: rollback.
-
-Mon Jan 26 22:53:04 2004  Dave Thomas  <dave@pragprog.com>
-
-	* io.c: Remove documentation references to $defout.
-
-Mon Jan 26 15:11:47 2004  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* sample/exyacc.rb: escape '}' to avoid warning.
-
-Mon Jan 26 14:41:46 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/delegate.rb (Delegator::initialize): preserve
-	  singleton_method_added method [ruby-dev:22685]
-
-	* lib/delegate.rb (Delegator::initialize): use Kernel::raise
-	  instead of mere raise.  [ruby-dev:22681]
-
-Mon Jan 26 12:47:17 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tcltklib/tcltklib.c: define CONST84 when TCL_MAJOR_VERSION == 7
-
-Mon Jan 26 11:35:23 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb: Makefiles should depend on also rbconfig.rb.
-	  (ruby-bugs:PR#1256)
-
-	* ext/win32ole/win32ole.c (set_argv): set real arguments to
-	  WIN32OLE::ARGV.  [ruby-list:39073]
-
-Thu Jan 22 22:54:53 2004  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/imap.rb (BEG_REGEXP): allow 8-bit characters in quoted
-	  strings for Novell GroupWise Internet Agent.
-	* lib/net/imap.rb (DATA_REGEXP): ditto.
-
-Thu Jan 22 16:21:33 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (string_content): reset lexical states at the beginning of
-	  string contents.  [ruby-list:39061]
-
-Wed Jan 21 21:55:51 2004  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/drb.rb: remove O_NONBLOCK, thanks \ay
-	* lib/drb/extserv.rb: typo
-
-Wed Jan 21 17:57:56 2004  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/imap.rb (envelope): allow NIL.
-	* lib/net/imap.rb (body): ditto.
-	* lib/net/imap.rb (number): ditto.
-	* lib/net/imap.rb (ensure_nz_number): show a detailed error
-	  message.
-
-Wed Jan 21 16:44:20 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (merge_libs): squeeze successive same libraries.
-	  [ruby-dev:22652]
-
-Wed Jan 21 16:01:37 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/digest/rmd160/extconf.rb: have_library appends found library.
-
-Wed Jan 21 11:36:00 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* parse.y (block_append): update nd_end for "real" head node.
-	  [ruby-list:39058]
-
-Tue Jan 20 14:48:13 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/extconf.rb: should check <openssl/conf_api.h> instead
-	  of OPENSSL_VERSION_NUMBER. [ruby-list:39056]
-
-Tue Jan 20 14:43:17 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/base64.rb: Add RDoc
-
-Tue Jan 20 14:25:51 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/abbrev.rb: Add RDoc
-
-Tue Jan 20 13:22:39 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/generators/html_generator.rb: Document aliases at
-	  top-most level.
-
-	* lib/English.rb: Document English.rb.
-
-Tue Jan 20 02:49:22 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/extconf.rb: add check for OpenSSL version.
-	  [ruby-list:39054]
-
-Tue Jan 20 02:38:13 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* marshal.c (w_class): should not dump singleton class.
-	  [ruby-dev:22631]
-
-Tue Jan 20 01:31:36 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* io.c (lineno): typo fix(FIX2INT -> INT2FIX).
-
-Mon Jan 19 21:53:38 2004  akira yamada  <akira@ruby-lang.org>
-
-	* io.c, re.c, string.c, time.c: fixed up positions of RDocs.
-
-Mon Jan 19 07:09:20 2004  Tadayoshi Funaba  <tadf@dotrb.org>
-
-	* lib/date.rb: zone was wrong when it was behind UTC.
-	  Thanks Mark J. Reed.
-
-	* lib/date/format.rb: %z is now always replaced by four digits
-	  with a leading plus or minus sign.
-
-	* sample/cal.rb: added a class, anyway.
-
-Sun Jan 18 20:47:35 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* ruby.c: use translate_char() on Cygwin.
-
-Sun Jan 18 02:33:26 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* defines.h (_WIN32): undef _WIN32 on Cygwin before defining DOSISH.
-
-Sun Jan 18 00:23:55 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* marshal.c (class2path): check anonymous class/module before
-	  checking referable, and allow singleton classes.
-
-Fri Jan 16 14:33:35 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* marshal.c (class2path): get class path and check referable.
-	  [ruby-dev:22588]
-
-Fri Jan 16 09:52:23 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (proc_eq): Proc with empty body may not be equal.
-	  [ruby-dev:22590]
-
-Thu Jan 15 13:03:10 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (argf_read): do not append EOF.  (ruby-bugs-ja:PR#585)
-
-	* io.c (rb_io_fwrite): ad-hockery hack to get rid of HP-UX stdio
-	  weird behavior.  [ruby-dev:22424]
-
-Wed Jan 14 13:31:06 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/iconv/extconf.rb: wrapper iconv.rb is dependent on platform.
-
-Tue Jan 13 18:54:28 2004  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* lib/logger.rb(Logger#msg2str): no special treatment for the object
-	  which responds to :to_str.  commited at 2004-01-11T21:46:27 by
-	  gsinclair.
-
-	* lib/logger.rb(LogDevice#initialize): remove type checking if the
-	  given object is a String.  Kernel.open handles it correctly.
-	  commited at 2004-01-11T21:46:27 by gsinclair.
-
-	* test/logger/test_logger.rb: follow above change (ArgumentError ->
-	  TypeError.)  follow above commit.
-
-Tue Jan 13 14:27:13 2004  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* lib/test/unit/ui/testrunnerutilities.rb (TestRunnerUtilities):
-	  moved run method which allows output level.  [ruby-dev:22554]
-
-Tue Jan 13 04:29:52 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/ri/ri_driver.rb (RiDriver::report_method_stuff):
-	  Show fully-qualified class names in class list.
-
-Tue Jan 13 01:04:37 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/ri/ri_paths.rb (RI::Paths): First attempt at
-	  incorporating DESTDIR in the rdoc installation.
-
-Mon Jan 12 23:27:19 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (primary): fix position after FCALL.  [ruby-dev:22574]
-
-Mon Jan 12 12:07:22 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_c.rb (RDoc::C_Parser::do_methods):
-	  Someone changed the "// in eval.c" comments to "/*...*/" style,
-	  so the parsing of the source file name broke.
-
-	* object.c: Remove spurious space in TrueClass documentation.
-
-	* lib/rdoc/parsers/parse_c.rb (RDoc::C_Parser::find_body): Fix
-	  bad regexp: if the code before a documented method contained
-	  a comment that wasn't terminated by whitespace, that comment
-	  and all intervening code was included in the following
-	  method's documentation.
-
-	* lib/rdoc/ri/ri_formatter.rb (RI::HtmlFormatter::break_to_newline):
-	  HTML formats need explicit line breaks.
-
-Mon Jan 12 11:46:30 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (LIBPATHFLAG, RPATHFLAG): enclose paths with single
-	  quotes.  [ruby-dev:22564]
-
-	* lib/mkmf.rb (libpathflag): do not enclose with quotes always.
-
-	* {bcc32,win32,wince}/Makefile.sub (LIBPATHFLAG): quoted.
-
-Mon Jan 12 02:24:07 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/ri/ri_formatter.rb (RI::HtmlFormatter): Add HTML
-	  generation support to ri (Elliot Hughes)
-
-Mon Jan 12 02:24:07 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/ri/ri_formatter.rb (RI::HtmlFormatter): Add HTML
-	  generation support to ri (Elliot Hughes)
-
-Sun Jan 11 02:07:47 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/ri/ri_options.rb (RI::Options::OptionList::OptionList):
-	  Also accept command line options via the 'RI' environment variable.
-
-Sun Jan 11 02:07:47 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/ri/ri_options.rb (RI::Options::OptionList::OptionList):
-	  Also accept command line options via the 'RI' environment variable.
-
-Sat Jan 10 21:27:41 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (eval): need to add message delimiter. [ruby-dev:22561]
-
-Sat Jan 10 01:54:50 2004  Eric Sunshine  <sunshine@sunshineco.com>
-
-	* defines.h (__NeXT__): Ensure that all standard S_IRUSR, S_IWGRP,
-	  S_IRWXO, etc. macros are defined since future code might require
-	  them (even though present code only requires a subset).
-
-	* defines.h (__NeXT__): Bug fix: WORDS_BIGENDIAN was not being set
-	  correctly on Rhapsody when -arch compiler flag was used (via
-	  configure's --enable-fat-binary option).
-
-Fri Jan  9 10:05:14 2004  Siena.  <siena@faculty.chiba-u.jp>
-
-	* lib/mkmf.rb (libpathflag): use single quotes.  [ruby-dev:22440]
-
-Thu Jan  8 23:49:21 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* configure.in (RDOCTARGET): new macro.  if you want to install
-	  rdoc documentation, you need to run configure with
-	  --enable-install-doc.
-
-Thu Jan  8 21:29:43 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_pkey.c (ossl_pkey_to_der): removed; it returns
-	  public key only.
-
-	* ext/openssl/ossl_pkey_dh.c (ossl_dh_to_der): new function for
-	  OpenSSL::PKey::DH#to_der.
-
-	* ext/openssl/ossl_pkey_dsa.c (ossl_dsa_to_der): new function for
-	  OpenSSL::PKey::DSA#to_der.
-
-	* ext/openssl/ossl_pkey_rsa.c (ossl_rsa_to_der): new function for
-	  OpenSSL::PKey::RSA#to_der.
-
-Thu Jan  8 16:51:04 2004  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* test/wsdl/datetime/test_datetime.rb: fixed a stupid testcase which
-	  dumps "E" at month-end.
-
-Thu Jan  8 11:20:01 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* eval.c, object.c, process.c, re.c: don't use C++ style comments.
-
-Thu Jan  8 04:36:21 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/cgi.rb (WEBrick::CGI#initialize): should create
-	  @config[:Logger] if it was not given.
-
-	* sample/webrick/*: new files.
-
-	* MANIFEST: add sample/webrick/*
-
-Wed Jan  7 13:00:18 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/ri/ri_driver.rb: Fix problem where ri was
-	  being too eager to find matches of ambiguous method
-	  names (such as "ri Thread.join" would return both
-	  Thread.join and ThreadsWait.join)
-
-Wed Jan  7 12:35:41 2004  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* lib/debug.rb: revert command parse regexps.  [ruby-list:39014] by
-	  Shirai,Kaoru.
-
-Wed Jan  7 08:21:04 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parserfactory.rb: Check for shebang
-	  line in files that would otherwise be treated as
-	  plain text.
-
-Tue Jan  6 22:13:34 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_mod_modfunc): should break if m has no super class.
-	  [ruby-dev:22498]
-
-Tue Jan  6 21:55:02 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (fptr_finalize): should save errno just after failure.
-	  [ruby-dev:22492]
-
-Tue Jan  6 14:53:14 2004  Dave Thomas  <dave@pragprog.com>
-
-	* bin/ri: split out the display side, making it pluggable. Added
-	  new ri_driver and ri_display files in lib/rdoc/ri.
-
-Tue Jan  6 06:37:53 2004  Dave Thomas  <dave@pragprog.com>
-
-	* bin/rdoc: Add --ri-system switch
-
-	* lib/.document: Update with list of files that seem to have
-	  documentation
-
-	* lib/test/unit.rb: Reorder comment to make it RDoc friendly.
-
-	* Makefile.in: add install-nodoc target, and make it
-	  generate RDoc on default install.
-
-	* lib/rdoc/ri/ri_options.rb (RI::Options::parse): Add
-	  --doc-dir option to ri.
-
-Tue Jan  6 00:04:40 2004  Dave Thomas  <dave@pragprog.com>
-
-	* lib/rdoc/parsers/parse_rb.rb (RDoc::RubyParser::parse_method_or_yield_parameters):
-	  fix parsing if there are braces in a method parameter list
-
-Fri Jan  2 14:54:11 2004  Dave Thomas  <dave@pragprog.com>
-
-	* bin/ri: Add new --classes option, and arrange for
-	  help messages to be paged too.
-
-	* bin/rdoc: Add statistics.
-
-	* process.c: (MG) Added Process documentation
+	* random.c (fill_random_bytes_syscall): use arc4random_buf if
+	  available.
 
-	* lib/rdoc/ri/ri_formatter.rb (RI::AttributeFormatter::wrap):
-	  Fix problem with labels not displaying in RI labeled
-	  lists using BS and ANSI modes.
+Wed May  4 23:13:58 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
 
-Fri Jan  2 01:50:13 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* numeric.c (fix_plus): Remove rb_nucomp_add prototype
+	  declaration.
 
-	* io.c (argf_eof): ARGF.eof? should not have any side effect.
-	  [ruby-dev:22469]
+	* numeric.c (fix_mul): Remove rb_nucomp_mul prototype
+	  declaration.
 
-Wed Dec 31 17:25:17 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* internal.h (rb_nucomp_add, rb_nucomp_mul): add prototype
+	  declarations.
 
-	* io.c (argf_each_byte): should return self.  [ruby-dev:22465]
+Wed May  4 18:38:00 2016  Kazuki Tsujimoto  <kazuki@callcc.net>
 
-Wed Dec 31 11:20:34 2003  Dave Thomas  <dave@pragprog.com>
+	* lib/net/http/header.rb (Net::HTTPHeader#{each_header,each_name,
+	  each_capitalized_name,each_value,each_capitalized}): Return
+	  sized enumerators.
 
-	* lib/rdoc/parsers/parse_c.rb (RDoc::C_Parser::do_methods): Make
-	  file referenced in "// in sss.c" relative to current file.
+	* test/net/http/test_httpheader.rb: add test for above.
 
-Wed Dec 31 11:17:37 2003  Dave Thomas  <dave@pragprog.com>
+Wed May  4 17:53:15 2016  Kazuki Tsujimoto  <kazuki@callcc.net>
 
-	* lib/rdoc/generators/html_generator.rb: Fix problem when
-	  a public method was aliased, but the alias is then
-	  made private, and hence doesn't appear in RDoc output.
+	* lib/set.rb (Set#{delete_if,keep_if,collect!,reject!,select!,classify,divide},
+	  SortedSet#{delete_if,keep_if}): Return sized enumerators.
 
-Wed Dec 31 01:33:05 2003  Dave Thomas  <dave@pragprog.com>
+	* test/test_set.rb: add test for above.
 
-	* array.c, error.c, eval.c, io.c, prec.c, range.c, re.c,
-	  string.c, time.c: Add RDoc for Kernel functions, and tidy.
+Tue May  3 23:25:48 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-Tue Dec 30 19:39:14 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* numeric.c: [DOC] Update result of 123456789 ** -2.
+	  [ruby-dev:49606] [Bug #12339]
 
-	* io.c (rb_f_readline): should raise EOFError at the end of
-	  files.  [ruby-dev:22458]
+Tue May  3 23:13:16 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
 
-	* io.c (argf_read): should concatenate input files when length
-	  argument is nil. [ruby-dev:22450]
+	* internal.h (RCOMPLEX_SET_IMAG): undef RCOMPLEX_SET_IMAG
+	  instead of duplicated undef RCOMPLEX_SET_REAL.
 
-	* io.c (argf_read): should update supplied string buffer (2nd
-	  argument) even when IO#read is called multiple times.
+Tue May  3 22:55:07 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
 
-	* io.c: should initialize lineno by zero. [ruby-dev:22460]
+	* complex.c (rb_complex_set_imag): Fix to properly set imag
+	  of complex.
 
-Tue Dec 30 12:30:30 2003  Dave Thomas  <dave@pragprog.com>
+Tue May  3 22:19:55 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/rdoc/code_objects.rb (RDoc::Context::find_symbol): If a
-	  class and a method have the same name, finding Xxx.abc was trying
-	  to find 'abc' in method 'Xxx', not class 'Xxx'.
+	* configure.in (warnflags): use -std=gnu99 instead of
+	  -std=iso9899:1999. [Feature #12336]
 
-Tue Dec 30 08:32:32 2003  Dave Thomas  <dave@pragprog.com>
+Tue May  3 22:10:09 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/rdoc/parsers/parse_rb.rb (RDoc::RubyParser::parse_method):
-	  Handle undoing nesting of yield parameters correctly for:
+	* string.c (count_utf8_lead_bytes_with_word): Use __builtin_popcount
+	  only if it can use SSE 4.2 POPCNT whose latency is 3 cycle.
 
-	  def each_entry(&b) Dir.foreach(@path) {|f| yield P.new(f) } end
+	* internal.h (rb_popcount64): use __builtin_popcountll because now
+	  it is in fast path.
 
-Tue Dec 30 08:32:32 2003  Dave Thomas  <dave@pragprog.com>
+Tue May  3 14:19:18 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rdoc/parsers/parse_rb.rb (RDoc::RubyParser::parse_method):
-	  Handle undoing nesting of yield parameters correctly for:
+	* parse.y (new_if_gen): set newline flag to NODE_IF to trace all
+	  if/elsif statements.  [ruby-core:67720] [Bug #10763]
 
-	    def each_entry(&block) Dir.foreach(@path) {|f| yield Pathname.new(f) } end
+Tue May  3 05:35:54 2016  Eric Wong  <e@80x24.org>
 
-Mon Dec 29 12:51:02 2003  Dave Thomas  <dave@pragprog.com>
+	* process.c (disable_child_handler_fork_child):
+	  initialize handler for SIGPIPE for !POSIX_SIGNAL
 
-	* eval.c: Add RDoc for Kernel global functions.
+Mon May  2 23:03:42 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Mon Dec 29 11:00:16 2003  Dave Thomas  <dave@pragprog.com>
+	* win32/win32.c, include/ruby/win32.h (rb_w32_utruncate): implements new
+	  truncate alternative which accepts UTF-8 path.
 
-	* array.c: Tidy up RDoc loose ends.
+	* file.c (truncate): use above function.
+	  [Bug #12340]
 
-Mon Dec 29 05:05:51 2003  Dave Thomas  <dave@pragprog.com>
+Mon May  2 20:59:21 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* struct.c, random: Add RDoc comments
+	* re.c (str_coderange): to avoid function call when the string already
+	  has coderange information.
 
-Mon Dec 29 02:20:54 2003  Dave Thomas  <dave@pragprog.com>
+	* re.c (rb_reg_prepare_enc): add shortcut path when the regexp has
+	  the same encoding of given string.
 
-	* eval.c: Add RDoc for class Proc, Method, UnboundMethod
+	* re.c (rb_reg_prepare_re): avoid duplicated allocation of
+	  onig_errmsg_buffer.
 
-Mon Dec 29 00:41:44 2003  Dave Thomas  <dave@pragprog.com>
 
-	* math.c: Add RDoc comments
+Mon May  2 12:34:52 2016  Tanaka Akira  <akr@fsij.org>
 
-Sun Dec 28 20:19:11 2003  Tanaka Akira  <akr@m17n.org>
+	* test/ruby/test_refinement.rb (test_inspect): Use Integer instead of
+	  Fixnum.
 
-	* ext/stringio/stringio.c (strio_sysread): StringIO.new.sysread didn't
-	  raise EOFError.
+Mon May  2 06:58:38 2016  Tanaka Akira  <akr@fsij.org>
 
-	* ext/zlib/zlib.c (gzreader_gets): don't increment lineno when
-	  gzfile_read_all returns "".
+	* complex.c: Don't refer rb_cFixnum and rb_cBignum.
+	  (k_fixnum_p): Use FIXNUM_P.
+	  (k_bignum_p): Use RB_TYPE_P.
 
-Sun Dec 28 15:25:08 2003  Dave Thomas  <dave@pragprog.com>
+Mon May  2 01:27:59 2016  Tanaka Akira  <akr@fsij.org>
 
-	* class.c,object.c,parse.y,sprintf.c,variable.c: Document classes
-	  Object, Module, etc...
+	* test/ruby/test_numeric.rb (test_step): Use Integer::FIXNUM_MAX.
 
-Sun Dec 28 11:55:29 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Mon May  2 01:15:01 2016  Tanaka Akira  <akr@fsij.org>
 
-	* test/csv/test_csv.rb: generate bom.csv and mac.csv files on the fly.
-	  [ruby-talk:88852]
+	* test/ruby/test_module.rb (test_name): Use Integer instead of Fixnum.
 
-	* test/csv/{bom.csv,mac.csv}: removed.
+Mon May  2 01:00:04 2016  Tanaka Akira  <akr@fsij.org>
 
-Sun Dec 28 08:56:51 2003  Dave Thomas  <dave@pragprog.com>
+	* test/lib/test/unit/assertions.rb (assert_fixnum): Defined.
+	  (assert_bignum): Defined.
 
-	* eval.c: Thead[Group] RDoc (thanks to MG)
+	* test/ruby/test_bignum.rb: Use assert_bignum.
 
-Sun Dec 28 03:50:05 2003  Dave Thomas  <dave@pragprog.com>
+	* test/ruby/test_integer_comb.rb: Use assert_fixnum and assert_bignum.
 
-	* lib/rdoc/parsers/parse_c.rb (RDoc::C_Parser::find_override_comment):
-	  Escape method names used in regexp
+	* test/ruby/test_optimization.rb: Ditto.
 
-Sun Dec 28 01:46:02 2003  Dave Thomas  <dave@pragprog.com>
+Mon May  2 00:41:53 2016  Tanaka Akira  <akr@fsij.org>
 
-	* lib/rdoc/ri/ri_formatter.rb (RI::TextFormatter::display_flow_item):
-	  Add support for rules in 'ri' output.
+	* vm_trace.c (recalc_remove_ruby_vm_event_flags): Add a cast to
+	  avoid signed integer overflow.
 
-Sun Dec 28 01:35:35 2003  Dave Thomas  <dave@pragprog.com>
+Mon May  2 00:06:04 2016  Tanaka Akira  <akr@fsij.org>
 
-	* lib/rdoc/parsers/parse_c.rb (RDoc::C_Parser::find_body):
-	  Sometimes the Ruby source aliases two otherwise
-	  unrelated methods (for example Kernel#object_id and
-	  Kernel#hash are both the same C function). Provide a
-	  facility to allow the methods to be documented
-	  separately.
+	* test/lib/envutil.rb: Define Integer::{FIXNUM_MIN,FIXNUM_MAX}.
 
-Sun Dec 28 01:05:31 2003  Dave Thomas  <dave@pragprog.com>
+	* test/ruby/test_bignum.rb: Use Integer::{FIXNUM_MIN,FIXNUM_MAX}.
 
-	* marshal.c, signal.c: RDoc collemts added by Elliott Hughes
+	* test/ruby/test_bignum.rb: Ditto.
 
-Sun Dec 28 00:48:47 2003  Dave Thomas  <dave@pragprog.com>
+	* test/ruby/test_integer_comb.rb: Ditto.
 
-	* lib/rdoc/parsers/parse_c.rb (RDoc::C_Parser::find_class_comment):
-	  Some source files use lower case class or module names
-	  when naming the Init_XXX function in C.
+	* test/ruby/test_marshal.rb: Ditto.
 
-Sat Dec 27 23:41:46 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+	* test/ruby/test_optimization.rb: Ditto.
 
-	* configure.in: fix "test: too many arguments" error.
+Sun May  1 23:59:59 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-Sat Dec 27 15:32:19 2003  Dave Thomas  <dave@wireless_3.local.thomases.com>
+	* array.c (rb_ary_sum): fix for mathn
 
-	* time.c: RDoc comments added
+	* test/ruby/test_array.rb (test_sum): ditto.
 
-Sat Dec 27 15:07:57 2003  Dave Thomas  <dave@pragprog.com>
+Sun May  1 23:51:54 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* object.c: Add RDoc comments for Symbol class.
+	* test/lib/test/unit.rb (Options#non_options): fixed wrong regexp.
+	  if both positives and negatives were specified, positives had to
+	  be specified from the beginning.
 
-Sat Dec 27 14:42:30 2003  Dave Thomas  <dave@pragprog.com>
+Sun May  1 21:00:07 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* numeric.c: Add RDoc comments.
+	* win32/win32.c: drop Win2K support.
 
-Sat Dec 27 00:44:00 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Sun May  1 20:39:47 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* io.c (next_argv): warn always for stdin on inplace edit mode.
+	* cont.c, hash.c, random.c, win32/win32.c: cleanup some Win9x/ME/NT4
+	  support leftovers.
+	  [fix GH-1328] patched by @cremno
 
-	* io.c (read_all): need to check string value.
+Sun May  1 07:30:44 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* io.c (argf_read): allow ARGF.read(nil).  [ruby-dev:22433]
+	* string.c (search_nonascii): use nlz on big endian environments.
 
-Fri Dec 26 23:02:09 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* internal.h (nlz_intptr): defined.
 
-	* io.c (rb_f_backquote): need not to check nil result.
-	  [ruby-core:02078]
+Sun May  1 00:03:30 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* io.c (rb_io_getline): should return nil when read_all gives
-	  empty string, even when nil rs is specified. [ruby-core:02077]
+	* configure.in (__builtin_ctz): check.
 
-Fri Dec 26 18:50:59 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* configure.in (__builtin_ctzll): check.
 
-	* configure.in: check if getcontext and setcontext are available.
+	* internal.h (rb_popcount32): defined for ntz_int32.
+	  it can use __builtin_popcount but this function is not used on
+	  GCC environment because it uses __builtin_ctz.
+	  When another function uses this, using __builtin_popcount
+	  should be re-considered.
 
-	* eval.c: use presence of getcontext/setcontext.
+	* internal.h (rb_popcount64): ditto.
 
-Fri Dec 26 16:40:53 2003  Tanaka Akira  <akr@m17n.org>
+	* internal.h (ntz_int32): defined for ntz_intptr.
 
-	* lib/pathname.rb (PathnameTest#test_plus): add 2 assertions.
+	* internal.h (ntz_int64): defined for ntz_intptr.
 
-Fri Dec 26 09:26:58 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* internal.h (ntz_intptr): defined as ntz for uintptr_t.
 
-	* pack.c (pack_pack): add sign check for 'i', and 'l'.
-	  [ruby-dev:22427]
+	* string.c (search_nonascii): unroll and use ntz.
 
-	* bignum.c (rb_quad_pack): add range check for 'quad int'.
+Sat Apr 30 21:54:13 2016  Tanaka Akira  <akr@fsij.org>
 
-Thu Dec 25 22:39:59 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* numeric.c (Init_Numeric): Gather Fixnum method definitions.
 
-	* string.c (rb_str_update): don't return any value.
+Sat Apr 30 21:28:14 2016  Tanaka Akira  <akr@fsij.org>
 
-Thu Dec 25 15:30:17 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* numeric.c (rb_int_div): Define Integer#/.
 
-	* string.c (rb_str_update): call rb_str_modify().
+	* bignum.c (rb_big_div): Don't define Bignum#/.
 
-Thu Dec 25 05:08:09 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/mathn.rb (Integer#/): Replace Integer#/ instead of Bignum#/.
 
-	* eval.c (search_required): search actual file name once when no
-	  extension specified.
+Sat Apr 30 21:11:08 2016  Tanaka Akira  <akr@fsij.org>
 
-Thu Dec 25 04:00:44 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* numeric.c (rb_int_plus): Define Integer#+.
 
-	* stable version 1.8.1 released.
+	* bignum.c (rb_big_plus): Don't define Bignum#+.
 
-Thu Dec 25 00:17:53 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Sat Apr 30 21:01:20 2016  Tanaka Akira  <akr@fsij.org>
 
-	* configure.in: check for nanosleep, -lrt if required.
-	  [ruby-core:02059]
+	* numeric.c (rb_int_minus): Define Integer#-.
 
-	* eval.c (thread_timer): use select(2) if nanosleep(2) is not
-	  available.
+	* bignum.c (rb_big_minus): Don't define Bignum#-.
 
-	* eval.c: check __stub_getcontext for glibc on some platforms.
-	  [ruby-list:38984]
+Sat Apr 30 20:53:33 2016  Tanaka Akira  <akr@fsij.org>
 
-Wed Dec 24 23:48:04 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* numeric.c (rb_int_mul): Define Integer#*.
 
-	* test/soap/test_basetype.rb, test/soap/marshal/test_marshal.rb
-	  test/xsd/test_xsd.rb: use "(-1.0 / (1.0 / 0.0))" instead of "-0.0"
-	  to express -0.0.  [ruby-talk:88786]
+	* bignum.c (rb_big_mul): Don't define Bignum#*.
 
-Wed Dec 24 23:29:30 2003  Tanaka Akira  <akr@m17n.org>
+Sat Apr 30 20:30:44 2016  Tanaka Akira  <akr@fsij.org>
 
-	* lib/tsort.rb (test_orphaned_break): removed.
+	* numeric.c (rb_int_modulo): Define Integer#%.
 
-Wed Dec 24 20:53:06 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* bignum.c (rb_big_modulo): Don't define Bignum#%.
 
-	* ext/tk/sample/tkmulticolumnlist.rb: new sample
+Sat Apr 30 20:17:08 2016  Tanaka Akira  <akr@fsij.org>
 
-	* ext/tk/sample/tkmultilistframe.rb: bug fix
+	* numeric.c (int_equal): Define Integer#==.
 
-Wed Dec 24 20:37:37 2003  Eric Sunshine  <sunshine@sunshineco.com>
+	* bignum.c (rb_big_eq): Don't define Bignum#==.
 
-	* configure.in (LDSHARED): Fixed typographical error in assignment of
-	  LDSHARED for Rhapsody which caused linking of extension modules to
-	  fail.
+Sat Apr 30 19:41:15 2016  Tanaka Akira  <akr@fsij.org>
 
-Wed Dec 24 17:51:18 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* numeric.c (int_gt): Define Integer#>.
 
-	* file.c (rb_thread_flock): enable thread support again.
+	* bignum.c (rb_big_gt): Don't define Bignum#>.
+	  Renamed from big_gt.
 
-Wed Dec 24 16:46:08 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* internal.h (rb_big_gt): Declared.
 
-	* eval.c (catch_timer): do not call rb_thread_schedule() inside to
-	  avoid pthread_mutex_lock() deadlock.  interrupts to system calls
-	  are detected by TRAP_END via EINTR error.
+Sat Apr 30 19:24:40 2016  Tanaka Akira  <akr@fsij.org>
 
-	* eval.c (thread_timer): do not post signal unless it is
-	  absolutely necessary.
+	* numeric.c (int_ge): Define Integer#>=.
 
-	* rubysig.h (TRAP_END): add CHECK_INTS to switch thread.
+	* bignum.c (rb_big_ge): Don't define Bignum#>=.
+	  Renamed from big_ge.
 
-	* regex.c (re_compile_pattern): check if nextp is smaller than
-	  pend.  [ruby-dev:22372]
+	* internal.h (rb_big_ge): Declared.
 
-	* eval.c (umethod_bind): remove method overridden check.
-	  [ruby-dev:22366]
+Sat Apr 30 19:20:40 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Wed Dec 24 16:13:05 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* doc/standard_library.rdoc: Remove obsoleted classes and modules.
 
-	* ext/openssl/ossl_ssl.c (ossl_ssl_read): should check for error
-	  status by SSL_get_error().
+Sat Apr 30 19:09:23 2016  Tanaka Akira  <akr@fsij.org>
 
-	* ext/openssl/ossl_ssl.c (ossl_ssl_write): ditto.
+	* numeric.c (int_lt): Define Integer#<.
 
-Wed Dec 24 14:23:27 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* bignum.c (rb_big_lt): Don't define Bignum#<.
+	  Renamed from big_lt.
 
-	* ext/stringio/stringio.c (strio_read): clear the buffer argument
-	  when returning nil.  [ruby-dev:22363]
+	* internal.h (rb_big_lt): Declared.
 
-	* test/ruby/ut_eof.rb (TestEOF::test_eof_0, TestEOF::test_eof_1):
-	  add buffer argument tests.
+Sat Apr 30 18:44:05 2016  Tanaka Akira  <akr@fsij.org>
 
-Wed Dec 24 14:07:55 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* numeric.c (int_le): Define Integer#<=.
 
-	* lib/test/unit/assertions.rb: Modules are allowed to rescue.
+	* bignum.c (rb_big_le): Don't define Bignum#<=.
+	  Renamed from big_le.
 
-	* lib/test/unit/autorunner.rb: show output_level in order.
+	* internal.h (rb_big_le): Declared.
 
-	* lib/test/unit/collector/dir.rb: get rid of successive same
-	  directories in load path.
+Sat Apr 30 18:11:44 2016  Tanaka Akira  <akr@fsij.org>
 
-	* test/testunit/test_assertions.rb (test_assert_nothing_raised,
-	  test_assert_raise): test for modules.
+	* bignum.c (Init_Bignum): Define Integer::GMP_VERSION.
 
-Wed Dec 24 13:43:34 2003  Shugo Maeda  <shugo@ruby-lang.org>
+Sat Apr 30 16:58:18 2016  Tanaka Akira  <akr@fsij.org>
 
-	* lib/net/imap.rb (authenticate): remove "\n" from base64 encoded
-	  strings.
+	* numeric.c (int_remainder): Define Integer#remainder.
 
-Wed Dec 24 11:26:41 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* bignum.c (rb_big_remainder): Don't define Bignum#remainder.
 
-	* test/fileutils/test_fileutils.rb: should not create any
-	  files or directories in current directory.  [ruby-talk:88724]
+	* internal.h (rb_big_remainder): Declared.
 
-Wed Dec 24 10:29:53 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Apr 30 15:29:24 2016  Tanaka Akira  <akr@fsij.org>
 
-	* ext/stringio/stringio.c (strio_read): never return nil at
-	  unlimited read.  [ruby-dev:22334]
+	* numeric.c (rb_int_uminus): {Fixnum,Bignum}#-@ is unified into
+	  Integer.
 
-	* ext/stringio/stringio.c (strio_read): support second
-	  argument.  [ruby-dev:22350]
+	* bignum.c (rb_big_uminus): Don't define Bignum#-@.
 
-Wed Dec 24 09:38:49 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Apr 30 14:42:20 2016  Tanaka Akira  <akr@fsij.org>
 
-	* parse.y (arg): should return 0 after error.  [ruby-dev:22360]
+	* numeric.c (rb_int_idiv): {Fixnum,Bignum}#div is unified into
+	  Integer.
 
-Wed Dec 24 00:56:54 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* bignum.c (rb_big_idiv): Don't define Bignum#div.
 
-	* io.c (read_all): do not return nil at the end of file.
-	  [ruby-dev:22334]
+Sat Apr 30 14:25:55 2016  Tanaka Akira  <akr@fsij.org>
 
-	* io.c (argf_read): do not depend on nil at eof behavior of
-	  IO#read().
+	* numeric.c (rb_int_modulo): {Fixnum,Bignum}#modulo is unified into
+	  Integer.
 
-	* eval.c (rb_thread_join): dup exception before re-raising it.
+	* bignum.c (rb_big_modulo): Don't define Bignum#modulo.
 
-	* io.c (rb_io_eof): call clearerr() to prevent side effect.  this
-	  patch is supplied by Masahiro Sakai <sakai@tom.sfc.keio.ac.jp>.
-	  [ruby-dev:22234]
+Sat Apr 30 14:04:30 2016  Tanaka Akira  <akr@fsij.org>
 
-	* pack.c (OFF16): get offset for big endian machines.
+	* numeric.c (int_divmod): {Fixnum,Bignum}#divmod is unified into
+	  Integer.
 
-	* pack.c (pack_pack): use OFF16 instead of OFF16B.
-	  [ruby-dev:22344]
+	* bignum.c (rb_big_divmod): Don't define Bignum#divmod.
 
-	* pack.c (pack_unpack): ditto.
+Sat Apr 30 13:20:00 2016  Tanaka Akira  <akr@fsij.org>
 
-Tue Dec 23 22:47:14 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* numeric.c (int_fdiv): {Fixnum,Bignum}#fdiv is unified into
+	  Integer.
 
-	* io.c (rb_io_check_readable): set FMODE_RBUF always, even if
-	  NEED_IO_SEEK_BETWEEN_RW is not defined. [ruby-dev:22340]
+	* bignum.c (rb_big_fdiv): Don't define Bignum#fdiv.
 
-	* io.c (rb_io_check_writable): clear FMODE_RBUF before writing
-	  something.
+Sat Apr 30 12:25:43 2016  Tanaka Akira  <akr@fsij.org>
 
-Tue Dec 23 22:25:00 2003  Gavin Sinclair  <gsinclair@soyabean.com.au>
+	* numeric.c (rb_int_pow): {Fixnum,Bignum}#** is unified into
+	  Integer.
 
-	* lib/optparse.rb: incomplete RDoc documentation added in place of
-	  existing RD comments.  Tabs converted to spaces.
+	* bignum.c (rb_big_pow): Don't define Bignum#**.
 
-Tue Dec 23 19:44:47 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Sat Apr 30 12:28:59 2016  Tanaka Akira  <akr@fsij.org>
 
-	* test/soap/test_streamhandler.rb (test_basic_auth): removed.
-	  soap4r + basic_auth is not officially supported in ruby/1.8.1 even
-	  though soap4r + basic_auth + http-access2 should run fine.
+	* bignum.c (rb_big_comp): Renamed from rb_big_neg.
 
-Tue Dec 23 19:42:59 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* numeric.c (fix_comp): Renamed from fix_rev.
 
-	* io.c (rb_io_ungetc): raise an exception at unread stream to
-	  avoid unspecified behavior.  [ruby-dev:22330]
+Sat Apr 30 12:25:43 2016  Tanaka Akira  <akr@fsij.org>
 
-	* test/ruby/test_system.rb (test_syntax): glob relatively from
-	  __FILE__.
+	* numeric.c (int_comp): {Fixnum,Bignum}#~ is unified into
+	  Integer.
 
-Tue Dec 23 18:09:40 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* bignum.c (rb_big_neg): Don't define Bignum#~.
 
-	* pack.c (pack_pack): remove unnecessary negative value check.
-	  [ruby-dev:22329]
+	* internal.h (rb_big_neg): Declared.
 
-Tue Dec 23 17:26:55 2003  KONISHI Hiromasa  <konishih@fd6.so-net.ne.jp>
+Sat Apr 30 12:07:42 2016  Tanaka Akira  <akr@fsij.org>
 
-	* bcc32/Makefile.sub (config.h): bcc has finite(). [ruby-list:38940]
+	* numeric.c (int_and): {Fixnum,Bignum}#& is unified into
+	  Integer.
 
-Tue Dec 23 16:08:16 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* bignum.c (rb_big_and): Don't define Bignum#&.
 
-	* lib/rexml/encodings/US-ASCII.rb: typo.  [ruby-talk:88650]
+Sat Apr 30 11:56:15 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/test_system.rb: num of asserts depended on running dir.
+	* ext/thread: removed dummy extension library.  thread_sync.c
+	  provides "thread.rb" already.
 
-	* test/xsd/test_noencoding.rb: rexml + without iconv/uconv cannot
-	  handle euc-jp.  install iconv, uconv or xmlscan.
+Sat Apr 30 11:53:48 2016  Tanaka Akira  <akr@fsij.org>
 
-Tue Dec 23 14:13:51 2003  akira yamada  <akira@ruby-lang.org>
+	* numeric.c (int_or): {Fixnum,Bignum}#| is unified into
+	  Integer.
 
-	* lib/uri/generic.rb (URI::Generic::check_userinfo,
-	  URI::Generic::check_user, URI::Generic::check_password): tests
-	  conflicts/depends with other components closely.
+	* bignum.c (rb_big_or): Don't define Bignum#|.
 
-	* test/uri/test_generic.rb (TestGeneric::test_set_component):
-	  added tets.
+Sat Apr 30 11:18:47 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
 
-Tue Dec 23 11:08:34 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* vm_trace.c: Fix typos. [ci skip]
 
-	* test/xsd/test_noencoding.rb: rescue Errno::EINVAL and do not test.
-	  "euc-jp" might not be in supported encoding name list.
-	  [ruby-talk:88650]
+Sat Apr 30 10:09:04 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Dec 23 06:10:31 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* ext/pty/pty.c (establishShell): honor USER environment variable
+	  and login name over uid, one uid can be shared by some login
+	  names.
 
-	* lib/webrick/cgi.rb (CGI): add support for mod_ruby.
+Fri Apr 29 22:40:28 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/webrick/cgi.rb (CGI::Socket): add check for existence of
-	  OpenSSL module in all HTTPS related methods.
+	* doc/maintainers.rdoc (ext/io/nonblock): still maintained, as
+	  well as ext/io/wait, which is the origin.
 
-	* lib/webrick/cgi.rb (CGI::Socket#cipher): should create similar
-	  value to OpenSSL::SSLSocket#cipher.
+Fri Apr 29 21:18:12 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* lib/webrick/httpresponse.rb (HTTPResponse#setup_header): should
-	  set "connection: close" if @keep_alive is false.
+	* doc/maintainers.rdoc (ext/win32): of course, it's still maintained.
 
-	* lib/webrick/https.rb (HTTPrequest#meta_vars): add supprt for
-	  SSL_PROTOCOL, SSL_CIPHER_USEKEYSIZE and SSL_CIPHER_ALGKEYSIZE.
+Fri Apr 29 21:03:10 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Mon Dec 22 23:00:05 2003  akira yamada  <akira@ruby-lang.org>
+	* gems/bundled_gems: Update latest gems, test-unit-3.1.8 and rake-11.1.2.
 
-	* lib/uri/generic.rb (URI::Generic::check_opaque): fixed typo.
+Fri Apr 29 20:43:02 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Mon Dec 22 21:59:24 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* doc/maintainers.rdoc: Update latest maintainers list on Ruby 2.4
 
-	* ext/iconv/iconv.c (map_charset): always ensure code is a String.
+Fri Apr 29 19:52:45 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Mon Dec 22 21:15:29 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* doc/maintainers.rdoc: Removed deprecated entries. These are already deleted.
 
-	* class.c (rb_mod_init_copy): always copy singleton class.
-	  [ruby-dev:22325]
+Fri Apr 29 19:48:45 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Mon Dec 22 20:44:36 2003  akira yamada  <akira@ruby-lang.org>
+	* doc/maintainers.rdoc: Removed Ruby 1.8 entries. It's not necessary to
+	  Ruby 2.4 or later.
 
-	* lib/uri/generic.rb (URI::Generic#route_from): accepts urls which
-	  has no host-part.
+Thu Apr 28 17:03:17 2016  Nicholas Maccharoli  <nmaccharoli@gmail.com>
 
-	* test/uri/test_generic.rb (TestGeneric::test_route): added a test.
+	* hash.c (rb_hash_update_{block,func}_callback): dry up hash
+	  update callback code.  [Fix GH-1338]
 
-Mon Dec 22 20:38:44 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Apr 28 16:52:05 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/cgi.rb: reduce eval.
+	* re.c (rb_reg_prepare_enc): use rb_enc_asciicompat(enc) instead of
+	  rb_enc_str_asciicompat_p(str) to avoid useless rb_enc_get(str) call.
 
-	* lib/cgi.rb (CGI::QueryExtension::read_multipart): alias path to
-	  local_path.  [ruby-list:38883]
+Thu Apr 28 16:33:41 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Dec 22 20:09:31 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* lib/optparse.rb: [DOC] fix example code.  base on the code by
+	  Semyon Gaivoronskiy in [ruby-core:75224].  [Bug #12323]
 
-	* test/soap/test_property.rb: remove duplicated test method.
+Thu Apr 28 09:33:03 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Mon Dec 22 18:22:04 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* lib/rubygems.rb, lib/rubygems/*, test/rubygems/*: Update rubygems-2.6.4.
+	  Please see entries of 2.6.4 on
+	  https://github.com/rubygems/rubygems/blob/master/History.txt
 
-	* bcc32/Makefile.sub, win32/Makefile.sub (config.h): remove
-	  HAVE_ISINF definition to follow previous commits of missing.h
-	  and win32/win32.h.
+Thu Apr 28 04:49:07 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-Mon Dec 22 17:23:42 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* configure.in (rb_cv_lgamma_r_pm0): check if lgamma_r(+0.0)
+	  returns positive infinity, in addition to lgamma_r(-0.0).
+	  AIX returns an incorrect result of negative infinity.
 
-	* configure.in (ac_cv_func_setitimer): moved from defines.h
+	* math.c (ruby_lgamma_r): handle +0.0, in addition to -0.0.
 
-	* defines.h, rubysig.h, signal.c: removed macro handling which
-	  should be done in configure.
+Thu Apr 28 01:11:14 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* configure.in (intrinsics.h): check if present.
+	* time.c: define _DEFAULT_SOURCE because glibc 2.20 deprecates
+	  _BSD_SOURCE.
+	  https://sourceware.org/glibc/wiki/Release/2.20
 
-	* ruby.h: include intrinsics.h if available.
+Thu Apr 28 00:27:55 2016  Tanaka Akira  <akr@fsij.org>
 
-	* bignum.c, marshal.c: include ieeefp.h if available.
+	* numeric.c (int_xor): {Fixnum,Bignum}#^ is unified into
+	  Integer.
 
-	* missing.h (isinf): define as a macro if finite() and isnan()
-	  are available.  [ruby-core:02032]
+	* bignum.c (rb_big_xor): Don't define Bignum#^.
 
-Mon Dec 22 17:07:31 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+Wed Apr 27 20:53:59 2016  Tanaka Akira  <akr@fsij.org>
 
-	* configure.in (mingw): set isnan, finite and isinf to yes.
+	* numeric.c (int_aref): {Fixnum,Bignum}#[] is unified into
+	  Integer.
 
-Mon Dec 22 13:40:19 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* bignum.c (rb_big_aref): Don't define Bignum#<<.
 
-	* lib/soap/property.rb: passing block by reference.
+	* internal.h (rb_big_aref): Declared.
 
-Mon Dec 22 00:32:43 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Wed Apr 27 16:10:35 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* eval.c (rb_with_disable_interrupt): use ENABLE_INTS instead of
-	  ALLOW_INTS which may switch context.  [ruby-dev:22319]
+	* tool/instruction.rb: fix to follow current implementation.
 
-	* ext/syck/emitter.c (syck_emitter_write): str bigger than
-	  e->bufsize causes buffer overflow.  [ruby-dev:22307]
+Wed Apr 27 15:47:54 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Dec 21 17:29:00 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/stringio/stringio.c (strio_s_new): warn if a block is given,
+	  as well as IO.new.
 
-	* class.c (rb_check_inheritable): new function.  [ruby-dev:22316]
+Wed Apr 27 14:29:47 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* intern.h: add prototype.
+	* error.c (ruby_only_for_internal_use): raise fatal error when
+	  deprecated function only for internal use is called, not just a
+	  warning.
 
-	* eval.c (superclass): use rb_check_inheritable().
+Tue Apr 26 23:42:30 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* object.c (rb_class_initialize): check argument validity.
+	* tool/redmine-backporter.rb (rel): should not raise exceptions even if
+	  the user input is wrong.  only reports the error and continue process.
 
-Sun Dec 21 16:25:10 2003  Tanaka Akira  <akr@m17n.org>
+Tue Apr 26 23:35:23 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/pathname.rb (Pathname#+): re-implemented to resolve ".." in
-	  beginning of the argument.
-	  (Pathname#join): concatenate from the last argument.
-	  (Pathname#parent): just use Pathname#+.
+	* ruby.c (process_options): convert -e script to the encoding
+	  given by a command line option on Windows.  assume it is the
+	  expected encoding.  [ruby-dev:49461] [Bug #11900]
 
-Sun Dec 21 00:12:37 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+Tue Apr 26 21:11:02 2016  Tanaka Akira  <akr@fsij.org>
 
-	* ext/tk/lib/tk.rb: add new methods (TkScrollbar#assign, assign_list)
+	* numeric.c (rb_int_lshift): {Fixnum,Bignum}#<< is unified into
+	  Integer.
 
-	* ext/tk/sample/tkmultilistframe.rb: use TkScrollbar#assign method
+	* bignum.c (rb_big_lshift): Don't define Bignum#<<.
 
-Sat Dec 20 21:59:03 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Tue Apr 26 20:59:40 2016  Tanaka Akira  <akr@fsij.org>
 
-	* lib/webrick/httprequest.rb (HTTPRequest#meta_vars): refine regexp.
+	* numeric.c (rb_int_rshift): {Fixnum,Bignum}#>> is unified into
+	  Integer.
 
-	* lib/webrick/cgi.rb (CGI#start): NPH scripts return status line
-	  instead of Status: header field.
+	* bignum.c (rb_big_rshift): Don't define Bignum#>>.
 
-	* lib/webrick/cgi.rb (CGI::Socket): refine some coditions.
+Tue Apr 26 20:46:16 2016  Tanaka Akira  <akr@fsij.org>
 
-Sat Dec 20 16:07:14 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* numeric.c (int_size): {Fixnum,Bignum}#size is unified into Integer.
 
-	* lib/optparse.rb (OptionParser::Completion::complete): wrong
-	  Regexp for word boundary.  pointed out by Gavin Sinclair.
+	* bignum.c (rb_big_size_m): Don't define Bignum#size.
 
-	* lib/optparse.rb (OptionParser::make_switch): [no-] prefix was
-	  missing.
+	* internal.h (rb_big_size_m): Declared.
 
-Sat Dec 20 11:40:10 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Apr 26 20:09:08 2016  Tanaka Akira  <akr@fsij.org>
 
-	* lib/yaml.rb (YAML::YAML): adjust Marshal version.
+	* numeric.c (rb_int_bit_length): {Fixnum,Bignum}#bit_length is
+	  unified into Integer.
 
-Sat Dec 20 03:56:02 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* bignum.c (rb_big_bit_length): Don't define Bignum#bit_length.
 
-	* eval.c (rb_with_disable_interrupt): prohibit thread context
-	  switch during proc execution.  [ruby-dev:21899]
+	* internal.h (rb_big_bit_length): Declared.
 
-Sat Dec 20 02:41:02 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Tue Apr 26 19:56:16 2016  Tanaka Akira  <akr@fsij.org>
 
-	* lib/webrick/cgi.rb: add file. (yet another CGI library)
+	* numeric.c (int_abs): Integer#{abs,magnitude} moved from
+	  Fixnum and Bignum.
 
-	* MANIFEST: add lib/webrick/cgi.rb.
+	* bignum.c (rb_big_abs): Don't define Bignum#{abs,magnitude}.
 
-Sat Dec 20 02:18:31 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* internal.h (rb_big_abs): Declared.
 
-	* misc/ruby-mode.el (ruby-calculate-indent): proper indentation
-	  inside of parentheses.  [ruby-dev:22308]
+Mon Apr 25 14:39:11 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Dec 19 21:24:22 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* ext/rbconfig/sizeof/extconf.rb: just check the existence of each
+	  types, to reduce configuration time, especially cross-compiling.
 
-	* lib/webrick/httprequest.rb (HTTPRequest#meta_vars): should not set
-	  HTTP_CONTENT_TYPE and HTTP_CONTENT_LENGTH.
+	* template/sizes.c.tmpl: calculate sizes of checked types at
+	  compilation time.
 
-	* lib/webrick/https.rb (HTTPRequest#parse): should check presence
-	  of cert() method to detect SSLSocket.
+Mon Apr 25 11:27:27 2016  Marcus Stollsteimer  <sto.mar@web.de>
 
-Fri Dec 19 22:56:46 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* doc/extension.rdoc: Improvements to english grammars.
+	  [Bug #12246][ruby-core:74792][ci skip]
 
-	* lib/soap/property.rb (SOAP::Property#load): new method for loading
-	  property value into existing property tree.
+Mon Apr 25 11:17:50 2016  Marcus Stollsteimer  <sto.mar@web.de>
 
-	* test/soap/test_property.rb: add test.
+	* encoding.c: Fix return value of `Encoding::ISO8859_1.name`
+	  [Bug #12313][ruby-core:75147][ci skip]
+	* ext/bigdecimal/bigdecimal.c: Fix code sample of `BigDecimal.new`
 
-Fri Dec 19 19:21:49 2003  akira yamada  <akira@ruby-lang.org>
+Sun Apr 24 23:29:16 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-	* lib/runit/cui/testrunner.rb (RUNIT::CUI::TestRunner::run):
-	  should use Test::Unit::UI::{PROGRESS_ONLY,VERBOSE}.
+	* configure.in: add missing -lm for AIX.
 
-Fri Dec 19 17:36:49 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+Sun Apr 24 18:33:58 2016  Kazuki Tsujimoto  <kazuki@callcc.net>
 
-	* ext/tk/sample/tkmultilistbox.rb: bug fix
+	* vm_insnhelper.c (INLINE): disable r54738 if __NO_INLINE__ is defined.
+	  It caused "undefined reference to `vm_getivar'".
 
-	* ext/tk/sample/tkmultilistframe.rb: new sample script
+Sun Apr 24 09:32:12 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
 
-Fri Dec 19 03:44:27 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* test/ruby/test_array.rb: Add test cases for Array#sum with
+	  non-numeric objects.
 
-	* lib/webrick/httputils.rb (parse_form_data): should return an
-	  empty Hash if the body is empty.
+Sun Apr 24 04:21:27 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Thu Dec 18 21:47:35 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* vm_insnhelper.c (INLINE): define as `inline` when it is optimized.
+	  define as `static inline` when it is not optimized to keep
+	  the symbol generated.
 
-	* lib/mkmf.rb (create_makefile): should remove deffile if it's
-	  made by miniruby. based on nobu's patch.
+	* vm_insnhelper.c (vm_getivar): use `INLINE` to force inline
+	  so that a compiler inlines it into vm_getinstancevariable
+	  and optimizes out is_attr and related branches.
 
-Thu Dec 18 21:44:21 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* vm_insnhelper.c (vm_getivar): use `inline` to recommend inline.
+	  Without this vm1_ivar_set is degraded.
 
-	* eval.c (stack_extend): ignore inline optimization on VC7.
+	  benchmark results:
+	  minimum results in each 5 measurements.
+	  Execution time (sec)
+	  name    ruby 2.4.0dev (2016-04-23 trunk 54727) [x86_64-linux]   ruby 2.4.0dev (2016-04-23 trunk 54733) [x86_64-linux]       built-ruby
+	  loop_whileloop 0.641                                                   0.642 0.646
+	  vm1_ivar* 1.002                                                   0.999 0.831
+	  vm1_ivar_set* 0.369                                                   1.106 0.362
 
-	* win32/Makefile.sub (OS, RT): can override.
+	  Speedup ratio: compare with the result of `ruby 2.4.0dev (2016-04-23
+	  trunk 54727) [x86_64-linux]' (greater is better)
+	  name    ruby 2.4.0dev (2016-04-23 trunk 54733) [x86_64-linux]
+	  built-ruby
+	  loop_whileloop
+	  0.998        0.991
+	  vm1_ivar*
+	  1.003        1.205
+	  vm1_ivar_set*
+	  0.334        1.018
 
-	* win32/Makefile.sub (LDFLAGS): ditto. shouldn't use pdb:none
-	  option. based on Tietew's patch [ruby-dev:22289]
+Sat Apr 23 18:01:21 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Thu Dec 18 16:38:44 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* vm_insnhelper.c (vm_getivar): specify inline instead of static inline.
+	  vm_getivar is called by vm_call_ivar and vm_getinstancevariable.
+	  At least with GCC 4.8 and 5.3 on Linux, they are inlining it into
+	  vm_call_ivar but not vm_getinstancevariable.
+	  By `inline`, they correctly inline it and gains performance.
 
-	* dir.c (fnmatch): unlike find_dirsep(), rb_path_next() never
-	  return NULL.
+	  Speedup ratio: compare with the result of `ruby 2.4.0dev (2016-04-23
+	  trunk 54727) [x86_64-linux]' (greater is better)
+	  name    built-ruby
+	  loop_whileloop       1.001
+	  vm1_ivar*            1.189
+	  vm1_ivar_set*        1.024
 
-Thu Dec 18 15:27:59 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+	  Note the `inline`'s meaning is different between old GCC
+	  and C99. Old GCC's inline means C99's extern inline.
+	  https://gcc.gnu.org/onlinedocs/gcc/Inline.html
+	  Since Ruby specify -std=iso9899:1999, it works like C99.
 
-	* lib/ipaddr.rb (IPSocket::getaddress): merge usa's patch.
-	  [ruby-dev:21678]
+Sat Apr 23 16:11:39 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Wed Dec 17 15:15:30 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* include/ruby/ruby.h (rb_mul_size_overflow): use UNLIKELY
+	  by user side to improve generality.
 
-	* lib/cgi.rb (CGI::QueryExtension::Value::[]): should work like
-	  String#[] if more than one arguments are specified.
+Sat Apr 23 16:10:02 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/delegate.rb: avoid using common instance name as "@obj".
+	* include/ruby/ruby.h (RB_LIKELY): use prefix in ruby.h.
 
-	* lib/cgi.rb (CGI::QueryExtension::Value): Value is no longer
-	  subclass of String, but DelegateClass(String).
+	* intern.h (LIKELY): define with RB_LIKELY.
 
-	* ext/curses/extconf.rb: restore function check for init_color.
-	  [ruby-list:38905]
+Sat Apr 23 13:27:25 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
 
-	* Makefile.in: need to specify $(MAINLIBS) for the miniruby
-	  generation rule.
+	* NEWS: Add descriptions for Time#to_time updates.
+	  [Bug #12271]
 
-	* configure.in: better FreeBSD -lc_r support.
+Sat Apr 23 13:21:24 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
 
-Wed Dec 17 00:16:14 2003  Minero Aoki  <aamine@loveruby.net>
+	* NEWS: Add descriptions for DateTime#to_time updates.
+	  [Bug #12189]
 
-	* ext/strscan/strscan.c: new method
-	  StringScanner#beginning_of_line? (alias #bol?)
+Sat Apr 23 11:21:27 2016  Marcus Stollsteimer  <sto.mar@web.de>
 
-	* ext/strscan/strscan.c: new method StringScanner#concat and #<<.
+	* ext/date/date_core.c (Init_date_core): [DOC] Convert DateTime
+	  documentation to RDoc from Markdown.
+	  [ruby-core:75136] [Bug #12311]
 
-	* ext/strscan/strscan.c: StringScanner#new(str) does not duplicate
-	  nor freeze STR (allow destructive modification).
+Sat Apr 23 09:03:35 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/strscan/test_stringscanner.rb: test new methods above.
+	* ruby.c: cygwin does not use w32_cmdvector, command line can be
+	  other than UTF-8.  [ruby-dev:49519] [Bug #12184]
 
-	* test/strscan/test_stringscanner.rb: test destructive string
-	  modification.
+Sat Apr 23 01:00:03 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-Tue Dec 16 21:20:47 2003  Tanaka Akira  <akr@m17n.org>
+	* configure.in: don't use the system-provided round(3) on AIX.
+	  In AIX, round(0.49999999999999994) returns 1.0.
+	  Use round() in numeric.c instead.
 
-	* lib/pp.rb: don't use local variable `pp'.
+Fri Apr 22 21:00:44 2016  Tanaka Akira  <akr@fsij.org>
 
-	* lib/prettyprint.rb: ditto.
+	* test/ruby/test_time_tz.rb: Tests depends on Europe/Moscow removed
+	  to avoid test failures due to the tzdata change.
+	  https://github.com/eggert/tz/commit/8ee11a301cf173afb0c76e0315b9f9ec8ebb9d95
+	  Found by naruse.
 
-Tue Dec 16 13:20:43 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+Fri Apr 22 20:18:40 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* ext/tk/lib/tk.rb: condition bug of if statement on
-	  {pack,grid}_propagate methods
+	* include/ruby/ruby.h (rb_mul_size_overflow): added to handle
+	  mul overflow efficiently.
 
-Tue Dec 16 03:17:29 2003  why the lucky stiff  <why@ruby-lang.org>
+	* include/ruby/ruby.h (rb_alloc_tmp_buffer2): use rb_mul_size_overflow
+	  and avoid division where it can define DSIZE_T.
 
-	* lib/yaml/rubytypes.rb: comments in strings. [ruby-talk:88012]
+	* gc.c (xmalloc2_size): moved from ruby.h and use rb_mul_size_overflow.
 
-	* test/yaml/test_yaml.rb: add test.
+Fri Apr 22 20:34:04 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Dec 16 01:14:44 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* time.c (time_asctime): [DOC] add ctime example, not only
+	  asctime.  [ruby-core:75126] [Bug #12310]
 
-	* eval.c (catch_timer): check rb_thread_crtical in main native
-	  thread.
+Fri Apr 22 18:44:32 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* eval.c (thread_timer): just sends signals periodically, to
-	  prevent main native thread from receiving them in critical
-	  section.  [ruby-core:01959]
+	* variable.c: use uint32_t instead of long to avoid confusion about
+	  the type of ivtbl->numiv.
 
-Mon Dec 15 13:32:22 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Apr 22 15:09:27 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* dir.c (check_dirname): check string safety and remove extraneous
-	  trailing directory separators.  [ruby-dev:22279]
+	* eval_jump.c (exec_end_procs_chain): restore previous error info
+	  for each end procs.  [ruby-core:75038] [Bug #12302]
 
-	* file.c: renamed and externalized rb_path_next,
-	  rb_path_skip_prefix, rb_path_last_separator, rb_path_end.
+Fri Apr 22 15:04:56 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* intern.h: prototypes for rb_path_next, rb_path_skip_prefix,
-	  rb_path_last_separator, rb_path_end.
+	* tool/redmine-backporter.rb: the fullpath of merger.rb is too long to
+	  copy&paste on Windows.  show shorter name instead on the platform.
+	  I'm sure that the user of this command on Windows is only me.
 
-Mon Dec 15 09:27:46 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+Fri Apr 22 14:52:04 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* ext/openssl/ossl_pkcs12.c (ossl_pkcs12_initialize): first argument
-	  of rb_protect should take an argument of VALUE.
+	* tool/merger.rb: remove temporary file.
 
-Sun Dec 14 18:46:48 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+Fri Apr 22 11:27:03 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/socket/socket.c (Init_socket): IPv6 is not supported although
-	  AF_INET6 is defined on MinGW.
+	* lib/net/http.rb: Improve documentation for SSL requests via GET method.
+	  [fix GH-1325][ci skip] Patch by @jsyeo
 
-	* lib/ipaddr.rb (AF_INET6): workaround in the environment which does
-	  not support IPv6.
+Fri Apr 22 10:51:13 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Sat Dec 13 18:55:16 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/webrick/ssl.rb: Support to add SSLCiphers option.
+	  [fix GH-1321] Patch by @rhadoo
 
-	* ext/iconv/charset_alias.rb: preserve original order.
+Fri Apr 22 10:43:19 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/iconv/extconf.rb: remove wrapper file at clean.
+	* file.c, win32/file.c: Removed obsoleted safe level checks.
+	  [fix GH-1327] Patch by @cremno
 
-Sat Dec 13 18:09:42 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Fri Apr 22 10:01:48 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* eval.c (thread_timer): use timer by sub-thread and nanosleep.
-	  [ruby-talk:87519]
+	* benchmark/bm_so_meteor_contest.rb: fix a typo.
+	  [fix GH-1330][ci skip] Patch by @sachin21
 
-	* gc.c (Init_stack): no stack adjustment for THREAD_SAFE.
+Fri Apr 22 04:57:01 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Sat Dec 13 17:17:59 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* gc.c (rb_alloc_tmp_buffer_with_count): added like xmalloc2 to
+	  avoid duplicated check of size.
 
-	* eval.c (proc_alloc): cache the created object at first time.
-	  [ruby-talk:61288], [ruby-dev:22240]
+	* gc.c (ruby_xmalloc2): added to keep separate layers.
 
-Sat Dec 13 09:01:23 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* include/ruby/ruby.h (rb_alloc_tmp_buffer2): added to check
+	  the size more statically.
 
-	* configure.in: check ucontext.h.
+Fri Apr 22 04:54:40 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* eval.c: use getcontext/setcontext() instead of setjmp/longjmp()
-	  on ia64 or with native thread enabled.  [ruby-core:01932]
+	* include/ruby/ruby.h (LIKELY): moved from internal.h.
 
-Sat Dec 13 03:09:14 2003  why the lucky stiff  <why@ruby-lang.org>
+	* include/ruby/ruby.h (UNLIKELY): ditto.
 
-	* lib/yaml/rubytypes.rb: anonymous struct fix. [ruby-core:01946]
+Thu Apr 21 01:44:19 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* test/yaml/test_yaml.rb: add test.
+	* gc.c (objspace_malloc_prepare): remove size check because it is
+	  used by objspace_xmalloc and objspace_xcalloc.
+	  objspace_xmalloc introduces its own check in this commit.
+	  objspace_xcalloc checks with xmalloc2_size (ruby_xmalloc2_size).
 
-Fri Dec 12 22:36:44 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* gc.c (objspace_xmalloc0): common xmalloc function.
 
-	* lib/csv.rb: add Cell#to_str and Cell#to_s for /.../ =~ aCell,
-	  "#{aCell}" and so on.
+	* gc.c (objspace_xmalloc): introduce its own size check.
 
-	* test/csv/test_csv.rb: add tests.
+	* gc.c (objspace_xmalloc2): separated from ruby_xmalloc2 to clarify
+	  the layer who has the responsibility to check the size.
 
-Fri Dec 12 19:33:06 2003  Minero Aoki  <aamine@loveruby.net>
+	* gc.c (objspace_xrealloc): remove duplicated size check.
 
-	* lib/fileutils.rb (mkdir): remove trailing `/' from pathes.
+	* gc.c (ruby_xmalloc2): use objspace_xmalloc2.
 
-	* lib/fileutils.rb (rmdir): ditto. [ruby-dev:22238]
+	* include/ruby/ruby.h (ruby_xmalloc2_size): follow the size limit
+	  as SSIZE_MAX. Note that ISO C says size_t is unsigned integer.
 
-	* lib/fileutils.rb (rmdir_r): ditto.
+Thu Apr 21 12:14:04 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/fileutils.rb (fu_copy_dir): check if it is a directory after
-	  mkdir(2).
+	* configure.in: check if succeeded in creating config.h.
 
-Fri Dec 12 06:06:09 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* tool/ifchange: ignore failures when TEST_COLORS unmatched. just
+	  use the default value if expected name is not contained in it.
+	  [ruby-core:75046] [Bug #12303]
 
-	* eval.c (proc_invoke): fix class name in warning message for
-	  define_method.  [ruby-dev:22235]
+Wed Apr 20 17:33:31 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Dec 11 21:24:43 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* ext/cgi/escape/escape.c (cgiesc_unescape): define unescape
+	  method instead of _unescape, and should pass the optional
+	  argument to the super method.
 
-	* ext/openssl/ossl_pkcs12.[ch]: new files. add OpenSSL::PKCS12.
+	* lib/cgi/util.rb (CGI::Util#_unescape): remove intermediate
+	  method.
 
-	* ext/openssl/ossl.[ch]: ditto.
+Wed Apr 20 15:52:28 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/openssl/MANIFEST: add ossl_pkcs12.[ch].
+	* error.c (syntax_error_initialize): move the default message,
+	  "compile error", from parse.y.  the default parameter should
+	  belong to the class definition.
 
-Thu Dec 11 20:54:28 2003  Minero Aoki  <aamine@loveruby.net>
+	* parse.y (yycompile0): use the default parameter.
 
-	* lib/fileutils.rb (mkdir_p): remove trailing `/' befere mkdir(2).
-	  mkdir("nonexistdir/") does not work on NetBSD/Alpha 1.6.1.
+Wed Apr 20 10:25:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/fileutils.rb (fu_list): call to_str for all arguments.
+	* compile.c (append_compile_error): use rb_syntax_error_append.
 
-Thu Dec 11 20:07:01 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+	* error.c (rb_syntax_error_append): append messages into a
+	  SyntaxError exception instance.
 
-	* lib/ftools.rb (makedirs): sync with fileutils.
+	* parse.y (yycompile0): make new SyntaxError instance in main
+	  mode, otherwise error_buffer should be a SyntaxError if error
+	  has occurred.
 
-Thu Dec 11 19:53:03 2003  Minero Aoki  <aamine@loveruby.net>
+Tue Apr 19 17:42:47 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/fileutils.rb (mkdir_p): catch all SystemCallErrors.
-	  (mkdir("C:\") causes EACCESS on Windows 2000/NTFS)
+	* error.c (err_vcatf): rename, and separate appending message from
+	  creating a string buffer.
 
-Thu Dec 11 19:08:02 2003  Minero Aoki  <aamine@loveruby.net>
+	* error.c (rb_syntax_error_append): merge rb_error_vsprintf and
+	  rb_compile_err_append.
 
-	* lib/fileutils.rb (mkdir_p): check if it is a directory after
-	  mkdir(2) instead of before mkdir(2), to avoid race condition.
-	  [ruby-talk:87730]
-	  Refer: mkinstalldirs sh script, GNU mkdir(1) (coreutils 5.0)
+	* parse.y (parser_compile_error): use rb_syntax_error_append.
 
-Thu Dec 11 18:49:30 2003  Minero Aoki  <aamine@loveruby.net>
+Tue Apr 19 13:46:19 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/fileutils.rb: def m( arg ) -> def m(arg).
+	* compile.c (append_compile_error, compile_bug): pass iseq and get
+	  error info and file from it, not by the thread error info.
 
-Thu Dec 11 11:39:43 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* error.c (rb_report_bug_valist): take va_list instead of variadic
+	  arguments, and just report the bug but not abort.
 
-	* configure.in (ieeefp.h), numeric.c: needed for finite() on
-	  Solaris.  [ruby-core:01921]
+Tue Apr 19 13:18:12 2016  Naotoshi Seo  <sonots@gmail.com>
 
-	* file.c (rb_stat_inspect): adjust format specifier.
+	* lib/time.rb: revert r54167 because it would break
+	  backward compatibilities, and it is documented that
+	  Time.parse does not take into account time zone
+	  abbreations other than ones described in RFC 822
 
-	* parse.c (arg_prepend): nodetype() is for debug use.
+Tue Apr 19 13:12:03 2016  Naotoshi Seo  <sonots@gmail.com>
 
-	* ruby.h (ISASCII, etc): cast to int to get rid of warning.
+	* ChangeLog: Fix dates of previous commits
 
-	* ruby.h (alloca.h): include even in GCC.  [ruby-core:01925]
+Tue Apr 19 12:45:03 2016  Naotoshi Seo  <sonots@gmail.com>
 
-	* ext/bigdecimal/bigdecimal.c (GetVpValue): adjust format
-	  specifier.
+	* ChangeLog: Add descriptions for logger updates
+	* NEWS: Add descriptions for logger updates
 
-	* ext/bigdecimal/bigdecimal.c (BigDecimal_prec, BigDecimal_coerce,
-	  BigDecimal_divmod): use rb_assoc_new() to suppress memory usage.
+Tue Apr 19 12:45:02 2016  Naotoshi Seo  <sonots@gmail.com>
 
-	* ext/bigdecimal/bigdecimal.c (BigDecimal_split): ditto.
+	* lib/logger.rb: Add shift_period_suffix option
 
-	* ext/dl/sym.c (rb_dlsym_guardcall): guard itself should be
-	  volatile.
+Tue Apr 19 12:45:01 2016  Naotoshi Seo  <sonots@gmail.com>
 
-	* ext/iconv/iconv.c (iconv_convert): ensure actual parameter with
-	  format specifier.
+	* lib/logger.rb: Allow specifying logger parameters in constructor
+	  such as level, progname, datetime_format, formatter.
 
-	* ext/pty/pty.c (MasterDevice, SlaveDevice, deviceNo): do not
-	  define unless used.
+Mon Apr 18 16:07:01 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/pty/pty.c (getDevice): get rid of warning.
+	* compile.c (iseq_peephole_optimize): should not replace the
+	  current target INSN, not to follow the replaced dangling link in
+	  the caller.  [ruby-core:74993] [Bug #11816]
 
-	* ext/socket/socket.c (port_str, sock_s_getaddrinfo,
-	  sock_s_getnameinfo): FIX2INT() now returns long.
+Mon Apr 18 12:56:31 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/socket/socket.c (init_inetsock_internal): uninitialized
-	  variable.
+	* numeric.c (flo_truncate): add an optional parameter, digits, as
+	  well as Float#round.  [Feature #12245]
 
-	* ext/syck/rubyext.c (syck_parser_assign_io): add prototype.
+	* numeric.c (int_truncate): add an optional parameter, digits, as
+	  well as Integer#round.  [Feature #12245]
 
-	* ext/syck/rubyext.c (rb_syck_mktime, yaml_org_handler): use
-	  ISDIGIT() instead of isdigit() to avoid warnings and for
-	  platforms which don't support non-ascii charater.
+Sun Apr 17 04:18:56 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-Wed Dec 10 19:28:56 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* tool/redmine-backporter.rb: revisions are strings.
 
-	* ext/stringio/stringio.c (strio_read): set EOF flag at short read.
-	  [ruby-dev:22223], [ruby-dev:22224]
+Sat Apr 16 14:26:49 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
 
-Wed Dec 10 18:07:25 2003  Minero Aoki  <aamine@loveruby.net>
+	* ext/date/date_core.c : remove not used f_getlocal macro.
+	  After r54553 f_getlocal macro is not used.
 
-	* lib/erb.rb: new method ERB#filename(=). [ruby-dev:22208]
+Sat Apr 16 14:15:24 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
 
-Wed Dec 10 17:54:51 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/date/date_core.c : remove not used f_utc6 macro.
+	  After r54169 f_utc6 macro is not used.
 
-	* ext/stringio/stringio.c (strio_read): do not set EOF flag when
-	  requested length is zero.  [ruby-dev:22214]
+Sat Apr 16 10:00:11 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Dec 10 17:17:18 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* struct.c (struct_make_members_list, rb_struct_s_def): member
+	  names should be unique. [ruby-core:74971] [Bug #12291]
 
-	* io.c (read_all): should return given string even if data read is
-	  empty.  [ruby-dev:22207]
+	* struct.c (struct_make_members_list): extract making member name
+	  list from char* va_list, with creating symbols without
+	  intermediate IDs.
 
-Wed Dec 10 17:16:06 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Apr 16 01:33:27 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-	* ext/stringio/stringio.c (strio_read): adjust behavior at reading
-	  beyond EOF to IO.  [ruby-dev:22205]
+	* tool/redmine-backporter.rb: sort revisions.
 
-	* test/ruby/ut_eof.rb (TestEOF::Seek): test behaviors at reading
-	  beyond EOF.
+Sat Apr 16 01:16:02 2016  Tanaka Akira  <akr@fsij.org>
 
-	* test/ruby/test_file.rb, test/stringio/test_stringio.rb: include
-	  TestEOF::Seek test case.
+	* array.c (rb_ary_sum): Don't yield same element twice.
+	  Found by nagachika.
 
-Wed Dec 10 15:01:19 2003  Shugo Maeda  <shugo@ruby-lang.org>
+Sat Apr 16 01:03:32 2016  Tanaka Akira  <akr@fsij.org>
 
-	* test/monitor/test_monitor.rb (test_cond): use Queue#deq
-	  instead of sleep.
+	* array.c (rb_ary_sum): Fix SEGV by [1/2r, 1].sum.
 
-Wed Dec 10 14:45:39 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+Fri Apr 15 23:52:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* ext/pty/pty.c (HAVE_SYS_IOCTL_H): need to include <sys/ioctl.h>
-	  for TIOCSCTTY on *BSD.  based on gotoyuzo's patch.
-	  (ruby-bugs:PR#1211)
+	* rational.c (rb_rational_plus): rename from rb_rational_add
+	  to be aligned with rb_fix_plus.
 
-	* ext/pty/pty.c (establishShell): should close descriptors if fork
-	  failed.
+	* array.c (rb_ary_sum): ditto.
 
-Wed Dec 10 12:53:05 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+	* internal.h: ditto.
 
-	* win32/win32.h: define execv() using do_aspawn().
+Fri Apr 15 23:42:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* process.c (proc_exec_v): remove #ifdef's which stopped needing.
+	* rational.c (rb_rational_add): rename from nurat_add.
 
-Tue Dec  9 23:32:23 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* array.c (rb_ary_sum): use rb_rational_add directly.
 
-	* ext/tk/lib/tk.rb, ext/tk/lib/tkcanvas.rb, ext/tk/lib/tkdialog.rb,
-	  ext/tk/lib/tkentry.rb, ext/tk/lib/tkscrollbox.rb, ext/tk/lib/tktext.rb,
-	  ext/tk/sample/tkalignbox.rb, ext/tk/sample/tkcombobox.rb,
-	  ext/tk/sample/tkmultilistbox.rb, ext/tk/sample/tkoptdb.rb, ext/tk/sample/tktextframe.rb,
-	  ext/tk/sample/demos-en/dialog1.rb, ext/tk/sample/demos-en/dialog2.rb,
-	  ext/tk/sample/demos-jp/dialog1.rb, ext/tk/sample/demos-jp/dialog2.rb:
-	  overrided instance methods, which are private methods on the super
-	  class, are changed to 'private'
+	* test/ruby/test_array.rb (test_sum): add assertions for an array of
+	  Rational values.
 
-Tue Dec  9 19:53:02 2003  akira yamada  <akira@ruby-lang.org>
+Fri Apr 15 22:31:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* lib/uri/generic.rb (URI::Generic#route_from0): make case insensitive
-	  for host-part.
+	* array.c (rb_ary_sum): apply the precision compensated algorithm
+	  for an array in which Rational and Float values are mixed.
 
-	* test/uri/test_generic.rb (test_route): added tests for the above
+	* test/ruby/test_array.rb (test_sum): add assertions for the above
 	  change.
 
-Tue Dec  9 14:10:48 2003  Tanaka Akira  <akr@m17n.org>
-
-	* io.c (rb_io_check_readable): don't call io_seek if EOF flag is set,
-	  to avoid clearing EOF flag.
-	  (rb_io_check_writable): ditto.
-
-Tue Dec  9 02:53:55 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/sample/tkalignbox.rb: new sample script
+Fri Apr 15 22:30:01 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Dec  9 00:45:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
+	* thread.c (rb_thread_setname): defer setting native thread name
+	  set in initialize until the native thread is created.
+	  [ruby-core:74963] [Bug #12290]
 
-	* lib/test/unit/assertions.rb: renamed #assert_raises to #assert_raise
-	  and made the former call the latter. [ruby-core:01890]
+Fri Apr 15 20:27:16 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* test/testunit/test_assertions.rb: ditto.
+	* lib/irb/ext/save-history.rb: Fix NoMethodError when method is not defined.
 
-Tue Dec  9 00:07:35 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Fri Apr 15 15:38:58 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/soap/rpc/standaloneServer.rb: add 'shutdown' and 'status'
-	  methods as delegates to WEBrick.
+	* common.mk (benchmark): order options for built-ruby and compare-ruby.
 
-	* test/soap/calc/{test_calc.rb,test_calc2.rb},
-	  test/soap/helloworld/test_helloworld.rb,
-	  test/wsdl/datetime/test_datetime.rb, test/wsdl/raa/test_raa.rb:
-	  follow the change.
+Fri Apr 15 14:14:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-Mon Dec  8 22:48:03 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/test_array.rb (test_sum): add assertions for Rational and
+	  Complex numbers.
 
-	* lib/test/unit/autorunner.rb: remove dependency to a particular
-	  runner.  [ruby-core:01901], [ruby-list:38869]
+Fri Apr 15 10:07:11 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/test/unit/ui/testrunnerutilities.rb: moved output level
-	  constants from Console.
+	* ext/io/console/console.c (console_key_pressed_p): raise the same
+	  exception, "unknown virtual key code", for names with nul chars.
+	  though console_win32_vk() considers the length and can deal with
+	  nul chars, rb_sprintf() raised at PRIsVALUE previously, so quote
+	  it if it is unprintable.
 
-	* lib/test/unit/ui/console/testrunner.rb: ditto.
+Fri Apr 15 09:02:58 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/test/unit/ui/{fox,gtk,gtk2,tk}/testrunner.rb (initialize):
-	  accept output_level.
+	* ext/io/console/console.c (rb_sym2str): fallback definition for
+	  older ruby.  [ruby-core:74953] [Bug #12284]
 
-Mon Dec  8 15:03:30 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Apr 14 21:46:36 2016  Tanaka Akira  <akr@fsij.org>
 
-	* ext/syck/syck.c (syck_io_str_read): get rid of buffer overflow.
+	* array.c (rb_ary_sum): Support the optional argument, init, and
+	  block.
 
-Mon Dec  8 13:02:11 2003  Minero Aoki  <aamine@loveruby.net>
+Thu Apr 14 19:02:41 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/uri/common.rb: new method URI.regexp. [ruby-dev:22121]
+	* lib/irb/ext/save-history.rb: suppress warning: method redefined;
+	  discarding old save_history=.
 
-	* test/uri/test_common.rb: add test for URI.regexp.
+Thu Apr 14 14:58:14 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Mon Dec  8 12:44:14 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* ext/tk/tkutil/tkutil.c (tk_hash_kv): the third argument can be
+	  nil not only an Array.  reported by @windwiny at
+	  https://github.com/ruby/ruby/commit/cdaa94e#commitcomment-17096618
 
-	* pack.c: define swap16 and swap32 only if they are not
-	  defined. OpenBSD defines these macros. [ruby-dev:22181]
+Thu Apr 14 14:28:55 2016  cremno phobia  <cremno@mail.ru>
 
-Sun Dec  7 20:54:17 2003  Tanaka Akira  <akr@m17n.org>
+	* cont.c (fiber_initialize_machine_stack_context): fix wrong
+	  _MSC_VER check, should be decimal but not hexadecimal.
+	  [ruby-core:74936] [Bug #12279]
 
-	* ext/iconv/iconv.c (map_charset): make case sensitive.
-	  ext/iconv/charset_alias.rb (charset_alias): don't ignore
-	  config.charset's information.  sort aliases.
+Wed Apr 13 22:51:38 2016  Tanaka Akira  <akr@fsij.org>
 
-Sat Dec  6 22:58:03 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* array.c (rb_ary_sum): Array#sum is implemented.
+	  Kahan's compensated summation algorithm for precise sum of float
+	  numbers is moved from ary_inject_op in enum.c.
 
-	* ext/openssl/ossl_ssl.c (ossl_start_ssl): new function to wrap
-	  SSL_connect and SSL_accept; if SSL_connect (or SSL_accept) returned
-	  but not finished the handshake process, we should retry it.
+	* enum.c (ary_inject_op): Don't specialize for float numbers.
 
-	* ext/openssl/ossl_ssl.c (ossl_ssl_connect): call ossl_start_ssl.
+	  [ruby-core:74569] [Feature #12217] proposed by mrkn.
 
-	* ext/openssl/ossl_ssl.c (ossl_ssl_accept): ditto.
+Wed Apr 13 15:56:35 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/openssl/ossl_ssl.c (ossl_ssl_read): allow signal traps.
+	* numeric.c (flo_ceil): add an optional parameter, digits, as
+	  well as Float#round.  [Feature #12245]
 
-Sat Dec  6 21:45:10 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+	* numeric.c (flo_floor): add an optional parameter, digits, as
+	  well as Float#round.  [Feature #12245]
 
-	* io.c (flush_before_seek): flush before seek on any platform.
+	* numeric.c (int_ceil): add an optional parameter, digits, as
+	  well as Integer#round.  [Feature #12245]
 
-	* configure.in: ditto.
+	* numeric.c (int_floor): add an optional parameter, digits, as
+	  well as Integer#round.  [Feature #12245]
 
-Sat Dec  6 17:23:00 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Wed Apr 13 14:47:47 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/soap/soap.rb(SOAP::Env.getenv): allow upcase environment variable
-	  as well as downcase one.
+	* file.c (Init_File): add alias File.empty? to File.zero?.
+	  [Feature #9969]
 
-	* lib/soap/netHttpClient.rb(SOAP::NetHttpClient#proxy=): check URI.
+Wed Apr 13 14:36:24 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Dec  5 23:22:30 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* parse.y (assign_in_cond): allow multiple assignment in
+	  conditional expression.  [Feature #10617]
 
-	* lib/test/unit/assertions.rb (Test::Unit::Assertions::assert_raises,
-	  Test::Unit::Assertions::assert_nothing_raised): use the last
-	  argument as message unless class object.
+Wed Apr 13 14:11:59 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/testunit/test_assertions.rb (test_assert_raises): test for
-	  multiple exception list.  [ruby-core:01891]
+	* bignum.c (rb_big_size): add wrapper function of BIGSIZE and
+	  rename the method function with _m suffix.
 
-	* test/testunit/test_assertions.rb (test_assert_nothing_raised): test
-	  for non-exception classes.
+	* numeric.c (int_round_zero_p): extracted from rb_int_round.
+	  optimize for Bignum, and convert VALUE returned by Numeric#size
+	  to long.
 
-Fri Dec  5 22:23:04 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Wed Apr 13 12:00:08 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/soap/netHttpClient.rb: proxy support did not work.  fixed.
+	* test/ruby/test_basicinstructions.rb: add a test to check access
+	  instance variables on special const objects.
 
-	* lib/soap/property.rb: add class methods for loading property from
-	  stream/file/propertyfile.  propertyfile is a file which is located at
-	  somedir in $:.
+	  All of such objects are frozen, so that we can not set instance
+	  variables for them. But we can read instance variables and return
+	  default value (nil).
 
-	* lib/soap/soap.rb, lib/soap/wsdlDriver.rb, lib/soap/rpc/driver.rb,
-	  lib/wsdl/importer.rb: load property from propertyfile 'soap/property'
-	  e.g. /usr/local/lib/ruby/site_ruby/1.8/soap/property.
+Tue Apr 12 20:40:35 2016  Kaneko Yuichiro  <spiketeika@gmail.com>
 
-	* test/soap/test_property.rb, test/soap/test_streamhandler.rb: new file.
+	* ext/date/date_core.c (time_to_time): should preserve timezone
+	  info.  [ruby-core:74889] [Bug #12271]
 
-Fri Dec  5 17:26:23 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Apr 12 11:51:18 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* eval.c (rb_exec_end_proc): maintain tmp_end_procs.
-	  [ruby-dev:22154]
+	* compile.c (new_label_body): initialize bit fields, since
+	  compile_data_alloc does not clear the memory.  [Bug #12082]
 
-Fri Dec  5 13:36:59 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Mon Apr 11 20:18:43 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* eval.c (rb_exec_end_proc): should not clear end_procs and
-	  ephemeral_end_procs before execution. [ruby-dev:22144]
+	* vm_backtrace.c (frame2klass): filter only for imemo_ment.
+	  T_IMEMO/imemo_iseq can be passed here.
 
-	* eval.c (rb_obj_extend): call Module#extended hook after
-	  extended_object.  [ruby-list:38866]
+Mon Apr 11 17:43:04 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* object.c (Init_Object): Module#extended defined.
+	* compile.c (iseq_optimize): disable tail call optimization in
+	  rescued, rescue, and ensure blocks.
+	  [ruby-core:73871] [Bug #12082]
 
-Fri Dec  5 13:17:30 2003  Tanaka Akira  <akr@m17n.org>
+Mon Apr 11 06:54:39 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/test_pipe.rb: use IO.pipe instead of IO.popen.
+	* file.c (apply2files): apply to a VALUE vector instead of a
+	  temporary array.
 
-Fri Dec  5 11:54:45 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Apr 10 20:54:16 2016  Joe Swatosh  <joe.swatosh@gmail.com>
 
-	* ext/stringio/stringio.c (strio_read): follow IO#read.
+	* ext/win32/lib/win32/registry.rb (DeleteValue, DeleteKey): fix
+	  API names.  [ruby-core:74863] [Bug #12264]
 
-	* test/ruby/ut_eof.rb, test/ruby/test_file.rb, test/ruby/test_pipe.rb,
-	  test/stringio/test_stringio.rb: add EOF test.
+Sun Apr 10 17:47:42 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Dec  5 02:49:35 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/test/unit/assertions.rb (Test::Unit::Assertions::assert_raises):
-	  allow multiple exception list.  [ruby-core:01884]
-
-	* lib/test/unit/assertions.rb (Test::Unit::Assertions::assert_nothing_raised):
-	  check whether arguments are subclass of Exception.
-
-Thu Dec  4 23:54:00 2003  Rick Ohnemus  <rick.ohnemus@systemware.com>
-
-	* dln.c (aix_loaderror): should not use member named 'errno' which
-	  might be a macro (e.g. on AIX).
-
-Thu Dec  4 23:32:26 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* io.c (read_all): do not depend on lseek position.
-	  [ruby-dev:22026]
-
-Thu Dec  4 22:37:26 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_eval): preserve $! value when retry happens in the
-	  rescue clause.  [ruby-talk:86697]
-
-Thu Dec  4 21:50:07 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/drb/drb.rb (DRb::DRbMessage::send_request, send_reply):
-	  should rescue errors and re-raise DRbConnError on write too.
-	  [ruby-dev:22132]
-
-Thu Dec  4 16:41:17 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (exc_list): allow expanding list.  [ruby-dev:22134]
-
-Thu Dec  4 14:09:24 2003  Minero Aoki  <aamine@loveruby.net>
-
-	* test/fileutils/test_fileutils.rb (test_cp): test if the error is
-	  kind of SystemCallError.  It is needless details that which errno
-	  is set on each systems.
-
-Thu Dec  4 13:24:13 2003  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/monitor.rb: use Object#__send__ instead of Object#send.
-
-Thu Dec  4 13:17:45 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* lib/soap/streamHandler.rb: support latest released version of
-	  http-access2.
-
-Thu Dec  4 13:04:44 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* lib/soap/soap.rb: add SOAP::Env module for environment repository
-	  such as HTTP_PROXY.
-
-	* lib/soap/property.rb: property implementation.
-
-	* lib/soap/streamHandler.rb, lib/soap/wsdlDriver.rb,
-	  lib/soap/rpc/driver.rb: use soap/property.rb.
-
-	* lib/wsdl/importer.rb, lib/soap/wsdlDriver.rb, lib/soap/rpc/driver.rb:
-	  use SOAP::Env.
-
-	* lib/soap/netHttpClient.rb: add basic_auth, ssl_config, and cookie
-	  management interface, but ignored for now.
-
-	* lib/xsd/charset.rb: add XSD::Charset.encoding= interface to set
-	  wiredump charset explicitly.  it was fixed to 'utf-8' when iconv or
-	  uconv module was found.
-
-Thu Dec  4 10:43:58 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/dl/sym.c (rb_dlsym_guardcall): __declspec(noinline) is VC7
-	  feature.
-
-Thu Dec  4 10:27:12 2003  Minero Aoki  <aamine@loveruby.net>
+	* file.c (rb_realpath_internal): no argument conversions since
+	  this internal function does not need to_path and encoding
+	  conversions, not to be affected by the default internal
+	  encoding.
 
-	* lib/net/http.rb: update hyperlink to the Japanese document.
+Sat Apr  9 10:03:12 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Dec  4 09:12:43 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* load.c (rb_f_load): raise with the original path name before
+	  encoding conversion.
 
-	* ext/openssl/ossl_asn1.c (asn1time_to_time): should check that
-	  the underlying value of ASN1_TIME isn't NULL. [ruby-core:01881]
+Sat Apr  9 02:05:10 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Dec  4 08:29:43 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* bignum.c (rb_cstr_parse_inum): [EXPERIMENTAL] new function to
+	  parse integer in C-string with length.  the name and the
+	  arguments may be changed in the future.
 
-	* lib/webrick/server.rb (GenericServer#start): should rescue
-	  Exception to avoid unexpected aborting. [ruby-core:01853]
+	* bignum.c (rb_str_to_inum): preserve encoding of the argument in
+	  error messages, and no longer needs to copy non-terminated
+	  strings.
 
-	* lib/webrick/server.rb (GenericServer#start_thread): should check
-	  that peeraddr isn't nil before printing.
+	* bignum.c (rb_str2big_{poweroftwo,normal,karatsuba,gmp}): ditto.
 
-	* lib/webrick/httpresponse.rb (HTTPResponse#start_thread): should
-	  rescue Exception to avoid unexpected aborting of thread.
+Thu Apr  7 19:04:03 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Dec  4 03:48:59 2003  Tanaka Akira  <akr@m17n.org>
+	* doc/regexp.rdoc (comments): [DOC] terminators cannot appear in
+	  comments.  [ruby-core:74838] [Bug #12256]
 
-	* lib/pathname.rb (Pathname#link, Pathname#symlink): obsoleted.
-	  (Pathname#make_link, Pathname#make_symlink): new method.
+Thu Apr  7 11:24:14 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Dec  4 01:45:24 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* ext/tk/tkutil/tkutil.c (cbsubst_initialize): fix out-of-bound
+	  access when no arguments given.  `p Tk::Event.new` crashed.
 
-	* io.c (argf_read): should not terminate on empty string; wait
-	  until real EOF.  [ruby-dev:21969]
+Fri Apr  1 01:26:00 2016  Benoit Daloze  <eregontp@gmail.com>
 
-	* io.c (argf_read): should adjust length to read, when length is
-	  specified and read spans command line argument files.
+	* ext/coverage/coverage.c: Fully reset coverage to not persist global state.
+	  It was returning old file coverages as empty arrays to the user.
+	  [ruby-core:74596] [Bug #12220]
 
-Wed Dec  3 19:38:36 2003  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+	* ext/coverage/coverage.c (rb_coverages): remove unused static state.
 
-	* lib/drb/drb.rb: correct fcntl parameter. [ruby-dev:22120]
+	* thread.c: Moved and renamed coverage_clear_result_i to reset_coverage_i.
 
-Wed Dec  3 13:49:07 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* test/coverage/test_coverage.rb: improve precision of tests.
 
-	* ext/tk/lib/tk.rb: 'format'==>'Kernel.format' (avoid override trouble)
+Wed Apr  6 22:41:31 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/tk/lib/tkafter.rb: ditto.
+	* configure.in (rb_cv_lgamma_r_m0): fix the condition for
+	  lgamma_r(-0.0).  [Bug #12249]
 
-	* ext/tk/lib/tkcanvas.rb: ditto.
+Wed Apr  6 17:38:42 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* ext/tk/lib/tkdialog.rb: ditto.
+	* tool/downloader.rb (RubyGems.download): follow the change of the
+	  rubygems ssl_certs directory tree introduced by previous commit.
 
-	* ext/tk/lib/tktext.rb: ditto.
+Wed Apr  6 15:00:27 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Wed Dec  3 13:28:13 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/rubygems.rb, lib/rubygems/*, test/rubygems/*: Update rubygems-2.6.3.
+	  Please see entries of 2.6.3 on
+	  https://github.com/rubygems/rubygems/blob/master/History.txt
 
-	* Makefile.in (lex.c): try gperf first, and copy from the source
-	  directory if failed.  [ruby-dev:22123]
+Wed Apr  6 14:13:28 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/extmk.rb (MTIMES): let makefiles depend to mkmf.rb.
+	* configure.in (rb_cv_lgamma_r_m0): check if lgamma_r(-0.0)
+	  returns negative infinity.  [Bug #12249]
 
-	* lib/mkmf.rb (configuration): DLDFLAGS was duplicated.
+	* math.c (ruby_lgamma_r): define by the configured result.
 
-Tue Dec  2 23:18:12 2003  Minero Aoki  <aamine@loveruby.net>
+Wed Apr  6 10:56:15 2016  Anton Davydov  <antondavydov.o@gmail.com>
 
-	* lib/net/http.rb: wrote the warning about HTTP_PROXY environment
+	* lib/logger.rb (Logger#level=): remove unnecessary local
 	  variable.
 
-Tue Dec  2 21:31:42 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* bin/testrb: new test runner.  [ruby-core:01845]
-
-	* lib/test/unit/autorunner.rb (Test::Unit::AutoRunner.run,
-	  Test::Unit::AutoRunner#process_args): take test list to run and
-	  options.
-
-	* lib/test/unit/autorunner.rb (Test::Unit::AutoRunner::RUNNERS,
-	  Test::Unit::AutoRunner#run): should not exit inside a library,
-	  just return the result instead.
-
-	* lib/test/unit.rb: ditto.
-
-	* test/runner.rb: exit with the test result.
-
-Tue Dec  2 20:18:48 2003  Eric Sunshine  <sunshine@sunshineco.com>
-
-	* configure.in (AC_PROG_YACC): AC_DEFINE(OLD_YACC) if Yacc is found
-	  instead of Bison or byacc.
-
-	* parse.y: If OLD_YACC is defined, ensure that YYMAXDEPTH is at least
-	  10000 (Bison's default) since some old versions of Yacc define it as
-	  low as 150 by default, which is too low for Ruby to parse some files,
-	  such as date/format.rb.  Among other issues, the parse problem causes
-	  "make test" to fail.
-
-Tue Dec  2 20:03:20 2003  Minero Aoki  <aamine@loveruby.net>
-
-	* test/fileutils/test_fileutils.rb: check if Pathnames are usable
-	  for arguments.
-
-Tue Dec  2 04:22:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
-
-	* lib/test/unit/assertions.rb: fixed #assert_no_match message.
-
-	* test/testunit/test_assertions.rb: ditto.
-
-Tue Dec  2 00:43:00 2003  why the lucky stiff  <why@ruby-lang.org>
-
-	* ext/syck/syck.c: string buffering bug.  decrementing by full
-	  max_size now. [ruby-core:01834]
-
-Mon Dec  1 21:33:08 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* numeric.c (num_sadded): prohibit singleton method definition for
-	  Numerics.  fill yet another gap between Fixnum and Bignum.
-
-Mon Dec  1 17:33:47 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* pack.c (htov16): converts endian using swap16. htov32(), hton16,
-	  hton32 as well. [ruby-talk:85377]
+	* lib/logger.rb (Logger#initialize, Logger#reopen): [DOC] mention
+	  the default values.  cherrypicked from [GH-1319].
 
-	* pack.c (swap16): swap 2 bytes no matter how big short is on the
-	  platform.  swap32() is also prepared.
+Wed Apr  6 10:17:53 2016  cremno phobia  <cremno@mail.ru>
 
-	* numeric.c (rb_num2int): returns long to preserve information.
-	  rb_fix2int(), rb_num2uint(), rb_fix2uint() as well.
-	  [ruby-talk:85377]
+	* math.c (ruby_lgamma_r): missing/lgamma_r.c is used on Windows,
+	  since msvcrt does not provide it.
 
-	* numeric.c (rb_num2uint): should not check for value range if the
-	  source value is negative.
+	* missing/lgamma_r.c (lgamma_r): fix lgamma(-0.0).
+	  [ruby-core:74823] [Bug #12249]
 
-Mon Dec  1 17:14:34 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Apr  6 01:22:55 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* sample/optparse/opttest.rb: added.
+	* math.c (ruby_lgamma_r): mswin's lgamma_r also seems to be wrong.
+	  cf. [Bug #12249]
 
-Mon Dec  1 16:10:52 2003  Dave Thomas  <dave@pragprog.com>
+Wed Apr  6 00:53:31 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/rdoc/rdoc.rb: (etc) initial merge into main tree.
+	* math.c (ruby_lgamma_r): fix lgamma(-0.0) on mingw and OSX.
 
-Mon Dec  1 14:17:49 2003  Minero Aoki  <aamine@loveruby.net>
+	* math.c (ruby_tgamma): fix tgamma(-0.0) on mingw.
+	  [ruby-core:74817] [Bug #12249]
 
-	* lib/fileutils.rb (fu_each_src_dest0): call #to_str to allow
-	  Pathname for arguments. [ruby-core:01795]
+Tue Apr  5 14:50:28 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* test/fileutils/test_fileutils.rb: does much strict test on
-	  "same" files detecting.
+	* ext/nkf/nkf-utf8/nkf.c (mime_putc): fix typo.
+	  [Bug #12202] [ruby-core:74802]
 
-Mon Dec  1 09:28:14 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+Tue Apr  5 00:06:44 2016  Aeris  <aeris@imirhil.fr>
 
-	* bcc32/Makefile.sub, win32/Makefile.sub, wince/Makefile.sub
-	  (XCFLAGS): re-export $(XCFLAGS).
+	* ext/openssl/ossl_ssl.c (ossl_ssl_tmp_key): Access to ephemeral
+	  TLS session key in case of forward secrecy cipher.  Only
+	  available since OpenSSL 1.0.2.  [Fix GH-1318]
 
-	* bcc32/Makefile.sub, win32/Makefile.sub, wince/Makefile.sub
-	  (ARCH_FLAG): export $(ARCH_FLAG) (perhaps empty value).
+	* ext/openssl/extconf.rb: Check for SSL_get_server_tmp_key.
 
-Mon Dec  1 01:03:27 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+Mon Apr  4 23:37:05 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/mkmf.rb (TRY_LINK, link_command): added support for DLDFLAGS
-	  and ARCH_FLAG.  [ruby-dev:22085]
+	* vm_core.h (rb_vm_struct): make at_exit a single linked list but
+	  not RArray, not to mark the registered functions by the write
+	  barrier.  based on the patches by Evan Phoenix.
+	  [ruby-core:73908] [Bug #12095]
 
-Sun Nov 30 20:18:07 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+Mon Apr  4 17:43:45 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* configure.in: keep ARCH_FLAG separate. export ARCH_FLAG.
-	  [ruby-core:01819]
+	* gc.c: change default value of
+	  RUBY_GC_HEAP_FREE_SLOTS_MIN_RATIO 0.3 -> 0.2
+	  RUBY_GC_HEAP_FREE_SLOTS_MAX_RATIO 0.8 -> 0.65
 
-	* Makefile.in: add ARCH_FLAG to CFLAGS.
+	  These values are same as Ruby 2.0.0.
 
-	* Makefile.in: add @CPPFLAGS@ to CPPFLAGS.
+	  This change cause GC counts.
+	  However, generational GC reduced each (minor) GC time and
+	  increase memory locality. So that not so big impact on my
+	  benchmarking results.
+	  (surprisingly, this fix speed up programs on some cases)
 
-	* lib/mkmf.rb (link_command, cc_command): use ARCH_FLAG.
+	  You can change these values by environment variables
+	  if you feel wrong.
 
-	* lib/mkmf.rb (configuration): add ARCH_FLAG to DLDFLAGS.
+Mon Apr  4 17:36:52 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* Makefile.in: add ARCH_FLAG to DLDFLAGS.
+	* gc.c (get_envparam_double): take an upper_bound.
 
-	* configure.in: should put getcwd in AC_CHECK_FUNCS, not
-	  AC_REPLACE_FUNCS.  [ruby-core:01826]
+	  And also take an accept_zero flag which allow to accept zero
+	  even if lower_bound is set.
 
-Sun Nov 30 18:22:48 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+	* gc.c (ruby_gc_set_params): fix parameters.
 
-	* configure.in: do not override CCDLDFLAGS, LDFLAGS, XLDFLAGS,
-	  DLDFLAGS and LDSHARED.
+	  RUBY_GC_HEAP_FREE_SLOTS_MAX_RATIO set 0.9 as *lower_bound*, so that
+	  it should be upper_bound.
+	  Set RUBY_GC_HEAP_FREE_SLOTS_MIN_RATIO as lower bound.
 
-	* configure.in: XCFLAGS for compiling ruby itself.  ARCH_FLAG is
-	  reflected in CFLAGS.
+	  Also set lower/upper bound of RUBY_GC_HEAP_FREE_SLOTS_GOAL_RATIO to
+	  RUBY_GC_HEAP_FREE_SLOTS_MIN/MAX_RATIO.
 
-	* lib/mkmf.rb: ditto.  do not import XCFLAGS from config.status.
+Mon Apr  4 16:41:32 2016  Koichi Sasada  <ko1@atdot.net>
 
-Sun Nov 30 17:37:36 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* vm.c (Init_VM): should pass tokens.
 
-	* ext/tk/lib/tk.rb: bug fix [ruby-talk:86746]
+Sun Apr  3 09:34:29 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Nov 30 13:02:00 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* numeric.c (flodivmod): round division if it is a finite number
+	  and module is required.
 
-	* lib/soap/encodingstyle/soapHandler.rb: refactoring - Simplifying
-	  Conditional Expressions.
+	* numeric.c (dbl2ival): do not round here.
 
-	* lib/wsdl/soap/definitions.rb: refactoring - Move Method.
+	* numeric.c (flo_ceil): use dbl2ival.
 
-	* test/xsd/{test_noencoding.rb,noencoding.xml}: new files.  test for
-	  encoding unspecified XML file parsing.
+	* numeric.c (flo_round): round explicitly.
 
-	* test/wsdl/{test_fault.rb,map,datetime}: new files.  test of
-	  SOAPFault, dateTime and Apache's Map.
+Sat Apr  2 15:24:18 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Nov 30 09:35:14 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* include/ruby/intern.h (rb_check_arity): returns argc.
 
-	* string.c (rb_str_update): get rid of SEGV at just allocated String.
-	  [ruby-core:01812]
+Fri Apr  1 20:58:33 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Fri Nov 28 23:19:34 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* enc/unicode/case-folding.rb, casefold.h: Data generation to implement
+	  swapcase functionality for titlecase characters. Swapcase isn't defined
+	  by Unicode, because the purpose/usage of swapcase is unclear anyway.
+	  The implementation follows a proposal from Nobu, swapping the case of
+	  each component of a titlecase character individually.
+	  This means that the titlecase characters have to be decomposed.
 
-	* gc.c (gc_mark): explicitly check mark recursion levels, instead
-	  of unreliable stack length.
+	* enc/unicode.c: Code using the above data.
 
-Fri Nov 28 22:49:56 2003  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+	* test/ruby/enc/test_case_mapping.rb: Tests for the above.
 
-	* lib/rinda/rinda.rb: fix TupleSpaceProxy#read, read_all.
+Fri Apr  1 14:55:28 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-Fri Nov 28 21:44:40 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+	* configure.in (AC_CONFIG_FILES): $srcdir/.git can be a file pointing
+	  the real git_dir, such as when the git working tree is a "linked
+	  working tree" (a working tree created by git-worktree). So use
+	  git-rev-parse --git-dir to check if $srcdir is the top-level of a git
+	  repository, not just checking if the $srcdir/.git directory does exist
+	  or not.  [ruby-core:74759] [Bug #12239]
 
-	* test/fileutils/test_fileutils.rb (test_ln_s): should be a file, not
-	  a directory for FreeBSD.
+	* tool/change_maker.rb: use tool/vcs.rb to detect VCS. This used to have
+	  its own VCS detection code, while we have tool/vcs.rb.
 
-Fri Nov 28 19:37:56 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* tool/vcs.rb (detect): remove code duplication
 
-	* hash.c (env_has_value, env_index): must match exactly.
+Fri Apr  1 04:50:44 2016  Eric Wong  <e@80x24.org>
 
-	* test/ruby/test_env.rb (test_has_value, test_index): condition for
-	  aboves.
+	* ext/openssl/ossl_ssl.c (ossl_sslctx_s_alloc):
+	  enable SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER by default
+	  [Bug #12126]
 
-Fri Nov 28 17:59:20 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+Fri Apr  1 01:13:55 2016  Benoit Daloze  <eregontp@gmail.com>
 
-	* test/ruby/test_env.rb: add tests for ENV.
+	* thread.c (update_coverage): Do not track coverage in loaded files
+	  after Coverage.result. Avoids out-of-bounds access. [Bug #12237]
 
-Fri Nov 28 17:47:46 2003  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+	* ext/coverage/coverage.c (coverage_clear_result_i): document.
 
-	* lib/drb/drb.rb (DRbMessage#load): rescue Errno::* and raise
-	  DRbConnError.
+Thu Mar 31 19:16:16 2016  Koichi Sasada  <ko1@atdot.net>
 
-Fri Nov 28 15:41:15 2003  Tanaka Akira  <akr@m17n.org>
+	* gc.c: need to set initial value of GC_HEAP_FREE_SLOTS_GOAL_RATIO.
 
-	* lib/pathname.rb (Pathname#realpath): obsolete the force_absolute
-	  argument.
-
-Fri Nov 28 14:41:52 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* lib/soap/streamHandler.rb: drop unused http parameters.
-
-	* lib/soap/encodingstyle/soapHandler.rb, lib/soap/mapping/factory.rb,
-	  lib/soap/mapping/mapping.rb, lib/soap/mapping/registry.rb,
-	  lib/wsdl/soap/complexType.rb: ApacheSOAP's map support was broken
-	  under WSDL dynanic client environment.  fixed.
-
-	* test/wsdl/raa/*: add tests.
-
-	* lib/xsd/datatypes.rb: dateTime precision bug fix (at least, I hope.)
-	  bug of soap4r.  XSDDateTimeImple.to_time passed a Float to
-	  Time.local/Time.gm as an usec, and NUM2LONG(rb_num2long for Float)
-	  causes rounding error.
-
-	* test/soap/test_basetype.rb, test/xsd/test_xsd.rb: add tests.
-
-Fri Nov 28 04:15:24 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (method_arity): used wrong Proc object.  [ruby-talk:86504]
-
-Fri Nov 28 00:47:29 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_f_exit), process.c (rb_f_exit_bang): treat true as
-	  success, false as failure.  [ruby-dev:22067]
-
-	* eval.c (rb_f_abort, rb_thread_switch), process.c (rb_f_system): use
-	  ANSI macro instead of hard coded value.
-
-	* eval.c (rb_f_exit), process.c (rb_f_exit_bang): use VALUEs not but
-	  TYPEs.
-
-Thu Nov 27 22:05:48 2003  Akinori MUSHA  <knu@iDaemons.org>
-
-	* eval.c, gc.c: FreeBSD/ia64 currently does not have a way for a
-	  process to get the base address for the RSE backing store, so
-	  hardcode it for the moment.
-	  [submitted by: Marcel Moolenaar <marcel@FreeBSD.org>]
-
-Thu Nov 27 17:36:42 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tkafter.rb: bug fix on TkTimer#cancel_on_exception=(mode).
-	  TkTimer#wait recieves the exception of the callback.
-	  The exception is kept on @return_value.
-
-Thu Nov 27 16:58:48 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* win32/win32.c (rb_w32_stat): remove _fullpath() for NUL: device.
-
-Wed Nov 26 15:38:47 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* test/fileutils/test_fileutils.rb (test_ln_s): should take the
-	  existing symbolic link for OpenBSD.
-
-Wed Nov 26 04:48:42 2003  why the lucky stiff  <why@ruby-lang.org>
-
-	* ext/syck/token.c: removed YYTOKTMP references which
-	  were causing buffer overflows on large block scalars,
-	  comments, quoted scalars and plain scalars.
-
-	* ext/syck/rubyext.c: dynamic changing of buffer size.
-
-	* ext/syck/syck.h: default buffer size of 4k.
-
-Wed Nov 26 00:55:30 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/httpresponse.rb: add HTTPResponse#keep_alive=.
-
-	* lib/webrick/httpserver.rb (HTTPServer#run): should pass the
-	  request's keep_alive flag to the response.
-
-Tue Nov 25 21:41:35 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* defines.h (ENV_IGNORECASE): should define when DOSISH without
-	  human68k. [ruby-dev:22047]
-
-	* hash.c (env_has_value, env_index): don't ignore case of value.
-	  [ruby-dev:22048]
-
-Tue Nov 25 21:39:37 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* file.c (path_check_1): honor sticky bits always.
-	  [ruby-talk:86273]
-
-Tue Nov 25 20:02:14 2003  Minero Aoki  <aamine@loveruby.net>
-
-	* test/fileutils/test_fileutils.rb: do test in more deep
-	  directory.
-
-	* test/fileutils/test_nowrite.rb: ditto.
-
-Tue Nov 25 19:04:23 2003  Tanaka Akira  <akr@m17n.org>
-
-	* lib/open-uri.rb (URI::Generic#find_proxy): ENV case sensitivity test
-	  refined.
-
-Tue Nov 25 18:13:30 2003  Minero Aoki  <aamine@loveruby.net>
-
-	* test/fileutils/test_fileutils.rb: chdir Dir.tmpdir before each
-	  test. [ruby-dev:22045]
-
-	* test/fileutils/test_nowrite.rb: ditto.
-
-Tue Nov 25 17:52:11 2003  Tanaka Akira  <akr@m17n.org>
-
-	* lib/open-uri.rb (URI::Generic#find_proxy): use http_proxy under CGI
-	  if the environment variable is case sensitive.
-
-Tue Nov 25 16:41:33 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* test/wsdl/multiplefault.wsdl, test/wsdl/test_multiplefault.rb:
-	  removed.  this test requires extra libraries in soap4r/1.5.*.
-
-Tue Nov 25 16:24:42 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* lib/soap/**/*.rb, lib/wsdl/**/*.rb, lib/xsd/**/*.rb: changed license;
-	  GPL2 -> Ruby's.
-
-	* lib/soap/rpc/driver.rb, lib/soap/wsdlDriver.rb,
-	  lib/soap/streamHandler.rb: add interface to streamhandler.
-
-	* lib/soap/marshal.rb: raise error if parse fails.
-
-	* lib/soap/netHttpClient.rb: add https support.  Patched by
-	  Oliver M. Bolzer.
-
-	* lib/soap/netHttpClient.rb: dump HTTP response message body by itself.
-
-	* lib/soap/rpc/driver.rb, lib/soap/rpc/proxy.rb,
-	  lib/soap/wsdlDriver.rb: add driver#mandatorycharset interface to foce
-	  using charset for parsing response from buggy server.
-
-	* lib/soap/encodingstyle/soapHandler.rb: support Apache Axis's half
-	  typed multi-ref array.
-
-	* lib/soap/mapping/factory.rb, lib/soap/mapping/registry.rb: map
-	  SOAPStruct which has multi-accessors which name are the same, to an
-	  array.
-
-	* lib/soap/rpc/element.rb: fixed illegal parameter order.
-
-	* lib/soap/rpc/element.rb: element name of response message could have
-	  the name other than 'return'.
-
-	* lib/wsdl/operation.rb, lib/wsdl/operationBinding.rb,
-	  lib/wsdl/soap/classDefCreator.rb, lib/wsdl/soap/methodDefCreator.rb,
-	  lib/wsdl/soap/methodDefCreatorSupport.rb: WSDL/1.1 allows plural
-	  fault definition in a operation. [ruby-talk:84948]
-
-	* test/wsdl/multiplefault.wsdl, test/wsdl/test_multiplefault.rb: add
-	  test for above fix.
-
-	* lib/wsdl/soap/complexType.rb: support WSDL array definition with
-	  maxOccures="unbound".
-
-	* lib/xsd/charset.rb: use cp932 under emx.  Patched by
-	  Siena. / SHINAGAWA, Norihide in [ruby-dev:21972]
-
-	* lib/xsd/xmlparser/parser.rb: set @charset nil by default.  Nil means
-	  'follow encoding declaration in XML'.
-
-	* sample/soap/digraph.rb, sample/wsdl/amazon/wsdlDriver.rb,
-	  sample/wsdl/googleSearch/sampleClient.rb,
-	  sample/wsdl/googleSearch/wsdlDriver.rb,
-	  test/wsdl/test_emptycomplextype.rb,
-	  test/wsdl/marshal/test_wsdlmarshal.rb,
-	  test/xsd/test_xmlschemaparser.rb: use File.open(...) { |f| f.read }
-	  instead of File.open(...).read. [ruby-dev:21964]
-
-	* test/wsdl/emptycomplextype.wsdl, test/wsdl/test_emptycomplextype.rb:
-	  simplify the test case.
-
-	* test/wsdl/axisArray/*: add tests for axis's array encoding.
-
-Tue Nov 25 16:15:29 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* ruby.h: don't treat Cygwin as Windows.
-
-Tue Nov 25 15:18:28 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* configure.in: change default value of --enable-pthread (default: no)
-
-Tue Nov 25 07:31:16 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (primary): allow newlines just before right argument
-	  parenthesis.  (ruby-bugs:PR#1221)
-
-Mon Nov 24 23:32:06 2003  Tanaka Akira  <akr@m17n.org>
-
-	* lib/open-uri.rb (OpenURI.open_loop, URI::HTTP#proxy_open): use
-	  catch/throw for redirection instead of exception.
-	  (OpenURI.open_loop, OpenURI.redirectable?): restrict redirection.
-
-Mon Nov 24 19:59:48 2003  Tanaka Akira  <akr@m17n.org>
-
-	* lib/open-uri.rb (URI::Generic#find_proxy): use CGI_HTTP_PROXY
-	  instead of HTTP_PROXY in the CGI environment.
-
-Mon Nov 24 19:32:55 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* ext/etc/extconf.rb: check for pw_passwd in struct passwd and
-	  gr_passwd in struct group for DJGPP.
-
-	* ext/etc/etc.c: ditto.
-
-	* ext/Setup.dj: support for curses, etc, zlib.
-
-Mon Nov 24 17:00:00 2003  Tanaka Akira  <akr@m17n.org>
-
-	* lib/open-uri.rb: validate option names.
-	  :content_length_proc and :progress_proc option implemented.
-
-Mon Nov 24 14:53:10 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* bcc32/Makefile.sub, win32/Makefile.sub, wince/Makefile.sub
-	  (XCFLAGS): output empty value instead of `-DRUBY_EXPORT'.
-
-Sat Nov 22 23:09:45 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* configure.in: set enable_pthread to no on MinGW.
-
-Sat Nov 22 22:56:20 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* configure.in: add --enable-pthread option (default: yes)
-
-Sat Nov 22 22:48:46 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: add Tk.grab_release and fix bug of TkComposite
-
-	* ext/tk/lib/tkafter.rb: bug fix of TkAfter#start
-
-	* ext/tk/sample/tkcombobox.rb: new sample script
-
-	* ext/tcltklib/tcltklib.c: add native thread check
-
-Sat Nov 22 18:49:47 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/curses/curses.c (window_nodelay): nodelay() of NetBSD's
-	  libcruses returns no value, just like keypad().
-
-Sat Nov 22 17:36:36 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* bcc32/Makefile.sub, win32/Makefile.sub, wince/Makefile.sub
-	  (HAVE_GETCWD): output to config.h.
-
-	* bcc32/Makefile.sub, win32/Makefile.sub, wince/Makefile.sub
-	  (XCFLAGS): output to config.status.
-
-Sat Nov 22 13:10:10 2003  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/fileutils.rb (have_st_ino?): djgpp has valid st_ino.
-
-Sat Nov 22 11:28:48 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* gc.c (Init_stack): stack region is far smaller than usual if
-	  pthread is used.
-
-Sat Nov 22 07:30:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
-
-	* lib/test/unit/util/backtracefilter.rb: fixed a bug that occurred
-	  when an exception had no backtrace.
-
-	* test/testunit/util/test_backtracefilter.rb: ditto.
-
-Fri Nov 21 16:44:18 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tkentry.rb: fix the encoding trouble of percent
-	  substitutions on validatecommand option of TkEntry widget
-
-	* ext/tk/lib/tk.rb: fix bug on {pack|grid}_propagate() method
-
-Fri Nov 21 16:12:11 2003  Akinori MUSHA  <knu@iDaemons.org>
-
-	* ruby.1: Fix markups and grammar.
-
-Fri Nov 21 14:49:42 2003  Minero Aoki  <aamine@loveruby.net>
-
-	* ruby.1: wrote about ruby related environment variables.
-
-Fri Nov 21 12:28:03 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* marshal.c (w_extended): singleton methods should not be checked
-	  when dumping via marshal_dump() or _dump(). [ruby-talk:85909]
-
-Fri Nov 21 01:40:00 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* configure.in: check <pthread.h>
-
-	* ruby.h: include pthread.h if existence.
-	  define is_ruby_native() macro when not HAVE_NATIVETHREAD
-
-	* eval.c: undef is_ruby_native() function when not HAVE_NATIVETHREAD
-
-Fri Nov 21 00:43:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
-
-	* lib/test/unit/assertions.rb: use #__send__ instead of #send.
-
-	* lib/test/unit/testcase.rb: ditto.
-
-Thu Nov 20 19:19:22 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* configure.in: don't find the Cygwin's pthread library on MinGW.
-
-Thu Nov 20 19:15:50 2003  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/fileutils.rb (have_st_ino?): emx (OS/2 with EMX) does not
-	  have st_ino (always 0). [ruby-dev:21972]
-
-	* lib/fileutils.rb (rename_cannot_overwrite_file?): emx does not
-	  allow overwriting files by rename(2).
-
-	* test/fileutils/test_fileutils.rb: windows? ->
-	  have_drive_letter?, have_file_perm?
-
-Thu Nov 20 17:50:58 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/sample/tkballoonhelp.rb: new sample script
-
-	* ext/tk/sample/tkmultilistbox.rb: ditto
-
-	* ext/tk/sample/tktextframe.rb: ditto
-
-Thu Nov 20 13:37:34 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ruby.h: define is_ruby_native_thread() for no native thread
-	  environment
-
-	* eval.c: ditto
-
-Thu Nov 20 12:42:47 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* configure.in: always check existence of the pthread library
-
-	* ruby.h: define macros for ruby's native thread check
-
-	* eval.c: add ruby's native thread check
-
-	* gc.c: ditto
-
-Wed Nov 19 14:45:18 2003  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/net/http.rb (to_ary): print more friendly warning message.
-
-Wed Nov 19 14:32:08 2003  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/fileutils.rb (fu_same?): add djgpp and wince.
-
-	* lib/fileutils.rb (cannot_overwrite_file?): add wince.
-
-Wed Nov 19 11:04:47 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* lib/fileutils.rb (cannot_overwrite_file?, have_st_ino?): bccwin32
-	  is same as mswin32.
-
-Wed Nov 19 07:54:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
-
-	* lib/test/unit.rb: do not run tests if $! is set.
-
-	* lib/test/unit/assertionfailederror.rb: extend StandardError instead
-	  Exception (irb catches the former but not the latter).
-
-Tue Nov 18 23:31:36 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* missing/memmove.c (memmove): take void *, not char *.
-
-	* missing.h (memmove): ditto.
-
-	* missing.h (strchr, strrchr): return char *, not int.
-
-Tue Nov 18 22:20:10 2003  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/fileutils.rb (fu_same?): temporal fix for windows.
-
-Tue Nov 18 19:05:04 2003  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/fileutils.rb (fu_same?): check by inode instead of path
-	  name, to detect two hard links pointing to the same content.
-
-	* test/fileutils.rb: did not create correctly looped symlinks.
-
-Tue Nov 18 18:23:05 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/stringio/stringio.c (strio_read): behave as IO at empty string.
-	  [ruby-dev:21939], [ruby-dev:21941]
-
-	* ext/stringio/stringio.c (strio_getc, strio_getline): set EOF flag.
-
-	* ext/stringio/stringio.c (strio_rewind, strio_seek, strio_ungetc):
-	  clear EOF flag.
-
-	* test/stringio/test_stringio.rb: imported from [ruby-dev:21941].
-
-Tue Nov 18 14:06:35 2003  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/fileutils.rb (fu_each_src_dest): raise if src==dest.
-	  [ruby-talk:85344] [ruby-core:01699]
-
-	* lib/fileutils.rb: use Object#is_a? instead of Class#=== to allow
-	  e.g. remote objects for receivers.
-
-	* lib/fileutils.rb: FileTest -> File.
-
-	* lib/fileutils.rb: put parentheses for arguments of File.xxxx?
-
-	* test/fileutils/test_fileutils.rb (test_cp): test "cp a a".
-
-	* test/fileutils/test_fileutils.rb (test_mv): test "mv a a".
-
-	* test/fileutils/test_fileutils.rb (test_ln): test "ln a a".
-
-	* test/fileutils/test_fileutils.rb (test_ln_s): test "ln_s a a".
-
-	* test/fileutils/test_fileutils.rb (test_install): test "install a a".
-
-	* test/fileutils/fileasserts.rb: new method assert_symlink.
-
-	* test/fileutils/fileasserts.rb: assert_is_directory -> assert_directory.
-
-Mon Nov 17 19:38:49 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* file.c (getcwdofdrv): avoid using getcwd() directly, use
-	  my_getcwd() instead.
-
-	* merged NeXT, OpenStep, Rhapsody ports patch from Eric Sunshine
-	  <sunshine@sunshineco.com>.  [ruby-core:01596]
-
-Mon Nov 17 10:50:27 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse.rb (OptionParser::Completion::complete): allow least
-	  common completion for three or more candidates.
-
-Mon Nov 17 09:41:38 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/test/unit/ui/tk/testrunner.rb,
-	  lib/test/unit/ui/gtk/testrunner.rb:
-	  run GUI main loop in sub thread.
-
-	* lib/test/unit/ui/gtk2/testrunner.rb: imported from rough.
-
-	* lib/test/unit/autorunner.rb (keyword_display): sort keywords.
-
-Sun Nov 16 18:10:57 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (rb_eval): iterator should return value from next inside
-	  begin/rescue/end.  (ruby-bugs:PR#1218)
-
-Sun Nov 16 13:26:07 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* marshal.c (w_object): LINK check earlier than anything else,
-	  i.e. do not dump TYPE_IVAR for already dumped objects.
-	  (ruby-bugs:PR#1220)
-
-	* eval.c (rb_eval): call "inherited" only when a new class is
-	  generated; not on reopening.
-
-	* eval.c (eval): prepend error position in evaluating string to
-	  "mesg" attribute string only when it's available and is a
-	  string.
-
-Sun Nov 16 12:16:10 2003  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/net/protocol.rb: logging response body. [experimental]
-	  [ruby-list:38800]
-
-Sun Nov 16 10:49:38 2003  Gavin Sinclair  <gsinclair@soyabean.com.au>
-
-	* lib/thread.rb (Thread.exclusive): wrap method definition in
-	  class Thread to enable rdoc to process.
-
-Sun Nov 16 09:45:23 2003  Minero Aoki  <aamine@loveruby.net>
-
-	* lib/net/http.rb (set_debug_output): warn if method is called
-	  after #start.  [ruby-dev:38798]
-
-Sun Nov 16 04:41:33 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (eval): do not re-raise exception to avoid unnecessary
-	  exception copying, instead modify exception and internal
-	  information to adjust eval().
-
-	* eval.c (backtrace): can return the current frame information
-	  only if lev < -1.
-
-Sat Nov 15 22:16:42 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* /ext/openssl/ossl_x509ext.c (ossl_x509extfactory_create_ext):
-	  refine error message.
-
-Sat Nov 15 10:05:40 2003  Tanaka Akira  <akr@m17n.org>
+Thu Mar 31 17:50:27 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/open-uri.rb (OpenURI.open_loop, OpenURI::HTTP#proxy_open):
-	  refactored to support options.
-	  (Buffer): maintain size by this class.
+	* gc.c: change additional allocation policy.
 
-Sat Nov 15 07:40:14 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	  Introduce new environment variable
+	  RUBY_GC_HEAP_FREE_SLOTS_GOAL_RATIO (goal_ratio) to calculate the
+	  ratio of additional memory.
 
-	* eval.c (rb_method_node): new API to retrieve method body.
+	  Before this change, we add pages with the following formula
+	  (when free_slots < total_pages * RUBY_GC_HEAP_FREE_SLOTS_MIN_RATIO):
+	    next_pages = total_pages * RUBY_GC_HEAP_GROWTH_FACTOR
 
-Fri Nov 14 13:21:30 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	  This addition can allocate too much.
 
-	* ext/tcltklib/tcltklib.c: fix (en-bugged at 2003/11/07)
+	  With this change, we increase pages to satisfy the following formula:
+	    next_free_slots = next_total_slots * goal_ratio
+	  where
+	    next_free_slots = free_slots + adding_slots
+	    next_total_slots = total_slots + adding_slots.
 
-	* ext/tk/lib/tkdialog.rb: TkDialog.new accepts a parent widget
-	  argument [ruby-talk:85066]
+	  If you want to prepare many free slots, increase this ratio.
 
-Thu Nov 13 20:53:35 2003  Tanaka Akira  <akr@m17n.org>
+	  If this variable is 0, then simply multiply
+	  RUBY_GC_HEAP_GROWTH_FACTOR.
 
-	* lib/open-uri.rb (Kernel[#.]open): hard coded URI schemes removed.
-	  [ruby-ext:02251]
+	* gc.c (get_envparam_double): enable to accept 0.
 
-Thu Nov 13 19:17:00 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+Thu Mar 31 17:48:25 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/test/unit/ui/tk/testrunner.rb: use grid and panedwindow
-	  (if available)
+	* gc.c (gc_marks_finish): fix syntax error.
 
-Thu Nov 13 17:56:41 2003  Tanaka Akira  <akr@m17n.org>
+Thu Mar 31 16:49:36 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/open-uri.rb (OpenURI.open_uri): use File::RDONLY.
-	  reported by Take_tk <ggb03124@nifty.ne.jp>.
-	  [ruby-ext:02245]
+	* gc.c: simplify allocate/free detecting logic at the end of marking.
 
-Thu Nov 13 16:45:53 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	  Before this change, heap_pages_min_slots are calculated at the
+	  beginning sweeping phase. And this value is used at the end of
+	  *next* marking phase.
 
-	* ext/openssl/ossl_x509req.c (ossl_x509req_to_der): add function for
-	  X509::Request#to_der.
+	  To simplify it, we use this value at the end of this marking phase.
+	  It means that we don't need to store this value as global state.
 
-Thu Nov 13 11:31:14 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  Also heap_pages_max_slots is calculated at the begging of sweeping
+	  phase and used at the end of sweeping phase.
+	  To simplify this logic, we introduced new global value
+	  heap_pages_freeable_pages it means extra pages count we can free.
+	  gc_sweep_step() checks this value and moves empty pages to tomb_heap
+	  not more than this value.
 
-	* lib/optparse.rb (OptionParser::Completion#complete): prior shorter
-	  name to containing longer name.
+	  Because of this fix, heap_pages_swept_slots is no longer needed.
 
-Thu Nov 13 06:08:54 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* gc.c (rb_objspace_t::heap_pages): restruct the objspace global
+	  status.
 
-	* ext/tk/lib/tk.rb: stop freezing some classes
+	  remove the following fields
+	    * swept_slots (and heap_pages_swept_slots)
+	    * min_free_slots (and heap_pages_min_free_slots)
+	    * max_free_slots (and heap_pages_max_free_slots)
+	  And add the following filed.
+	    * freeable_pages (and heap_pages_freeable_pages)
 
-	* ext/tk/lib/multi-tk.rb: ditto.
+	* gc.c (heap_pages_free_unused_pages): unlink tomb heap pages
+	  because tomb heap should have only freeable pages.
 
-Wed Nov 12 17:32:49 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* gc.c (heap_extend_pages): add parameters for future extension.
 
-	* lib/test/unit/assertions.rb (assert_throws, assert_nothing_thrown):
-	  uncaught throw in sub thread raises ThreadError.
+Thu Mar 31 16:43:02 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/test/unit/ui/tk/testrunner.rb (setup_ui): "expand" is not
-	  necessary.
+	* gc.c: add GC parameters to configure the following values:
+	  * RUBY_GC_HEAP_FREE_SLOTS_MIN_RATIO:
+	    allocate additional pages when free slots is lower than
+	    the value (total_slots * (this ratio)).
+	  * RUBY_GC_HEAP_FREE_SLOTS_MAX_RATIO:
+	    allow to free pages when free slots is greater than
+	    the value (total_slots * (this ratio)).
 
-Wed Nov 12 14:09:43 2003  Shugo Maeda  <shugo@ruby-lang.org>
+	  Before this change, these values are hard coded.
 
-	* test/monitor/test_monitor.rb: fix the timing problem by Queue.
+	* gc.c (ruby_gc_params_t): ditto.
 
-Wed Nov 12 12:59:44 2003  Shugo Maeda  <shugo@ruby-lang.org>
+	* gc.c (ruby_gc_set_params): ditto.
 
-	* test/monitor/test_monitor.rb: added.
+Thu Mar 31 15:59:17 2016  Koichi Sasada  <ko1@atdot.net>
 
-Wed Nov 12 10:14:28 2003  Shugo Maeda  <shugo@ruby-lang.org>
+	* gc.c (gc_verify_heap_page): check the number of zombies.
 
-	* lib/monitor.rb: refactored. Thanks, Gennady Bystritsky.
+	* gc.c (gc_verify_heap_pages): check also tomb heap.
 
-Wed Nov 12 06:11:39 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Thu Mar 31 15:48:18 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/openssl/ossl.c (ossl_x509_sk2ary, ossl_x509crl_sk2ary):
-	  add functions to convert STACK into Array.
+	* gc.c (gc_page_sweep): return free slots count.
 
-	* ext/openssl/ossl.h: add prototypes.
+	* gc.c (gc_sweep_step): use returned free slots count.
 
-	* ext/openssl/ossl_pkcs7.c (ossl_pkcs7_set_certificates,
-	  ossl_pkcs7_get_certificates, ossl_pkcs7_get_crls,
-	  ossl_pkcs7_set_crls): add functions for PKCS7#certificates=
-	  PKCS7#certificates, PKCS7#crls= and PKCS7#crls.
+	* gc.c (gc_sweep_step): change variable name `next'
+	  to `next_sweep_page'.
 
-Wed Nov 12 00:47:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
+Thu Mar 31 11:33:49 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/test/unit/ui/testrunnermediator.rb: should require 'test/unit'.
+	* ext/date/date_core.c (d_lite_strftime, dt_lite_strftime): [DOC]
+	  fix indent not to be a big sole verbatim.
 
-Tue Nov 11 23:54:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
+Thu Mar 31 11:18:19 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/test/unit/ui/gtk/testrunner.rb: added a rescue clause to handle
-	  the case when the requested font is not available.
+	* ext/date/date_core.c (Init_date_core): [DOC] fix misplaced doc
+	  of DateTime.  [ruby-core:74729] [Bug #12233]
 
-Tue Nov 11 22:44:08 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Thu Mar 31 03:41:02 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* io.c (appendline): file may not end with newline.  a bug if
-	  READ_DATA_PENDING_PTR is defined. [ruby-talk:84925]
+	* ext/nkf/nkf-utf8/nkf.c: Merge upstream 69f7e74dde.
+	  fix indent.
 
-Tue Nov 11 10:42:41 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+Wed Mar 30 16:33:19 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/tk/lib/tk.rb: raise an exception when creating TkWindow
-	  object, because TkWindow class is an abstract class.
+	* extension.rdoc, extension.ja.rdoc: [DOC] Fix some errors.
+	  Renamed files, wrong method names or argument types; the example
+	  GetDBM macro is now updated to the current version of the actual
+	  code.  patch by Marcus Stollsteimer in [ruby-core:74690].
+	  [Bug #12228]
 
-Tue Nov 11 03:30:43 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Wed Mar 30 09:46:01 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* lib/ext/openssl/ossl_conf.c (ossl_config_get_value): return nil
-	  if the specified value doesn't exist.
+	* lib/open-uri.rb: Use `userinfo` for authenticated proxy.
+	  [fix GH-1148] Patch by @SokichiFujita
+	* test/open-uri/test_open-uri.rb: ditto.
+	  [fix GH-1309] Patch by @jdamick
 
-	* lib/ext/openssl/ossl_conf.c (ossl_config_get_section): return
-	  a empty hash if the specified section doesn't exist.
+Wed Mar 30 01:56:06 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Mon Nov 10 11:40:29 2003  Shugo Maeda  <shugo@ruby-lang.org>
+	* ext/nkf/nkf-utf8/nkf.c: Merge upstream 4f3edf80a0.
+	  patched by Anton Sivakov [Bug #12201] [Bug #12202]
 
-	* lib/monitor.rb (wait): return true on signal/broadcastfalse and
-	  false on timeout. Thanks Gennady Bystritsky.
+Wed Mar 30 01:54:30 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Mon Nov 10 00:07:10 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* tool/redmine-backporter.rb: add given revision to current changesets
+	  on associating the revision to the related ticket.
 
-	* parse.y (primary): primary_value may be 0 when syntax error.
-	  [ruby-talk:84893]
+Wed Mar 30 01:53:17 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Sun Nov  9 02:05:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
+	* tool/merger.rb: update revision.h before merge.
 
-	* lib/test/unit/assertions.rb: un-deprecated #assert_not_nil to
-	  maintain symmetry with #assert_nil. Also added better output for
-	  #assert_kind_of.
+Tue Mar 29 19:33:54 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* test/testunit/tc_assertions.rb: ditto.
+	* addr2line.c: define toupper for its use. fix r54391.
 
-Sat Nov  8 18:50:20 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Tue Mar 29 19:23:46 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* test/wsdl/raa/*: add new testcase for WSDL loading, parsing and
-	  reading.
+	* include/ruby/ruby.h (rb_isupper, rb_islower, rb_isalpha, rb_isdigit,
+	  rb_isalnum, rb_isxdigit, rb_isblank, rb_isspace, rb_isblank,
+	  rb_iscntrl, rb_isprint, rb_ispunct, rb_isgraph,
+	  rb_tolower, rb_toupper): use inline function to avoid function call.
 
-	* test/soap/marshal/*: backport from soap4r/1.5.1.  all differences are
-	  for ruby/1.6.
+	* include/ruby/ruby.h (rb_isascii): use inline function to clarify
+	  the logic.
 
-	* lib/soap/*: backport from soap4r/1.5.1.  all differences are for
-	  ruby/1.6.
+Tue Mar 29 18:56:55 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/wsdl/data.rb, lib/wsdl/xmlSchema/data.rb: move definition of
-	  ArrayTypeAttrName from ::WSDL::XMLSchema::* to ::WSDL::*.
-	  [ruby-talk:84813]
+	* tool/redmine-backporter.rb (backport): show merger.rb's path.
 
-	* lib/wsdl/soap/definitions.rb: element name typo in custom exception
-	  struct definition which is needed for wsdlDriver; camelCase ->
-	  underscore_name.
+	* tool/redmine-backporter.rb (show): show current issue again if no
+	  ticket number is given.
 
-Sat Nov  8 13:49:50 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* tool/redmine-backporter.rb (rel): show error message if current
+	  bugs.ruby-lang.org doesn't support the API.
 
-	* configure.in: improvement of pthread check
+Tue Mar 29 18:54:34 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Sat Nov  8 13:28:46 2003  Takaaki Tateishi  <ttate@ttsky.net>
+	* tool/merger.rb: support to backport header as backport identifier.
+	  Now you can specify by 'merge revision(s) 49254: [Backport #10738]'.
 
-	* ext/dl/sym.c: Add DL.win32_last_error and DL.last_error.
-	  Thanks, Kaoru Shirai.
+Tue Mar 29 16:53:44 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Sat Nov  8 06:19:38 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* enc/unicode/case-folding.rb, casefold.h: Tweaked handling of 6
+	  special cases in CaseUnfold_11_Table.
 
-	* ext/tcltklib/tcltklib.c: To fix 'pthread-enabled Tcl/Tk' problem,
-	  TclTkIp#_eval calls Tcl_Eval() on the mainloop thread only
-	  (queueing a handler to the EventQueue).
+	* enc/unicode.c: Adjustments for above.
 
-	* ext/tcltklib/README.1st: edit the description of '--with-pthread-ext'
+	* test/ruby/enc/test_case_mapping.rb: Tests for the above: Some tests in
+	  test_titlecase activated; test_greek added. A test in test_cherokee fixed.
 
-Fri Nov  7 23:23:04 2003  Tanaka Akira  <akr@m17n.org>
+Tue Mar 29 13:31:00 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* lib/pathname.rb (Pathname#+): if self or the argument is `.', return
-	  another.
-	  (Pathname#parent): if self is `.', return `..'.
-	  (Pathname#children): if self is `.', don't prepend self for a
-	  pathname in a result.
-	  (Pathname#join): re-implemented using Pathname#+.
-	  (Pathname#find): if self is `.', remove `./' prefix of yielding
-	  pathname.
+	* enc/unicode.c: Cleaned up some comments.
 
-Fri Nov  7 10:23:24 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Mar 29 13:24:56 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/socket/socket.c (make_hostent): get rid of SEGV on aliases
-	  lookup failure.  (ruby-bugs:PR#1215)
+	* enc/unicode/case-folding.rb, casefold.h: Removing data for idempotent
+	  titlecasing.
 
-Fri Nov  7 04:08:05 2003  UENO Katsuhiro  <katsu@blue.sky.or.jp>
+	* enc/unicode.c: Adjust code to data removal.
 
-	* ext/zlib/zlib.c (Init_zlib): define Zlib::GzipReader#each_line as
-	  an alias of Zlib::GzipReader#each.
+Tue Mar 29 12:45:18 2016  Laurent Arnoud  <laurent@spkdev.net>
 
-Fri Nov  7 01:03:16 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* lib/webrick/httpresponse.rb: Move error_body to method. It allow to
+	  override the body more easily. [fix GH-1307]
+	* test/webrick/test_httpresponse.rb: ditto.
 
-	* eval.c (rb_load): save and restore rb_prohibit_interrupt.
-	  [ruby-dev:21857]
+Tue Mar 29 06:40:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Nov  6 18:05:07 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* error.c (rb_compile_err_append): rb_thread_t::base_block is no
+	  longer used.
 
-	* io.c (rb_io_inspect): show the path also at a closed file.
-	  [ruby-dev:21851]
+	* iseq.c (rb_iseq_compile_with_option): ditto, no protection is
+	  needed.
 
-Thu Nov  6 11:42:07 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Mar 29 06:39:22 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/stringio/stringio.c (strio_set_string, strio_reopen): check
-	  tainted.
+	* parse.y (struct parser_params): move parse_in_eval flag from
+	  rb_thread_t.
 
-	* ext/stringio/stringio.c (strio_copy, strio_ungetc, strio_write,
-	  strio_putc): add infection.
+	* parse.y (rb_parser_set_context): set parsing context, not only
+	  mild error flag.
 
-	* ext/stringio/stringio.c (strio_path): just nil.  [ruby-dev:21846]
+	* iseq.c (rb_iseq_compile_with_option): the parser now refers no
+	  thread local states to be restored.
 
-	* ruby.c (proc_options): reserve searched script path in the
-	  source file name table.  [ruby-list:38765]
+	* vm_eval.c (eval_string_with_cref): ditto.
 
-	* lib/optparse.rb (OptionParser::Completion#complete): default not to
-	  ignore case on completion.  [ruby-talk:84726]
+Mon Mar 28 21:24:02 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-	* win32/win32.c (make_cmdvector): process backslashes even if a quote
-	  is not enclosed.
+	* numeric.c (int_pos_p): fix typos.
 
-Wed Nov  5 23:49:45 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Mon Mar 28 14:54:49 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* sample/openssl/gen_csr.rb: there (at least) is a CA which does not
-	  accept DN in UTF8STRING format.  it's a sample.
+	* enc/unicode.c: Refactoring in preparation for data reduction for
+	  titlecase.
 
-Wed Nov  5 22:55:16 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+Mon Mar 28 14:36:36 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* configure.in, eval.c, signal.c: : add '--with-pthread-ext'
-	  option to fix the pthread trouble on 'tcltklib'
+	* enc/unicode.c: Minor refactoring for I WITH DOT ABOVE.
 
-	* ext/tcltklib/README.1st: add the description of '--with-pthread-ext'
+Mon Mar 28 14:26:24 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/tk/lib/tktext.rb : add TkText#text_copy, text_cut, text_paste
-	  to support Tcl/Tk8.4's tk_textCopy, tk_textCut, tk_textPaste
+	* enc/unicode.c: Removed code now covered by data from table.
 
-	* ext/tk/lib/tk.rb : add TkMenu#set_focus support Tcl/Tk's
-	  tk_menuSetFocus
+Mon Mar 28 11:49:21 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Wed Nov  5 17:33:45 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* enc/unicode.c: Adding comments. [ci skip]
 
-	* eval.c (rb_load): allow interrupt during loaded program
-	  evaluation.  [ruby-dev:21834]
+Mon Mar 28 11:30:23 2016  Shinichi Maeshima  <netwillnet@gmail.com>
 
-	* hash.c (rb_hash_fetch): always warn if default argument and a
-	  block are supplied at the same time. [ruby-dev:21842]
+	* lib/rubygems.rb: Fix `Gem.find_spec_for_exe` picks oldest gem.
+	  https://github.com/travis-ci/travis-ci/issues/5798
+	  https://github.com/rubygems/rubygems/pull/1566
+	* test/rubygems/test_gem.rb: ditto.
 
-	* hash.c (env_fetch): ditto.
+Mon Mar 28 11:26:31 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* array.c (rb_ary_fetch): ditto.
+	* lib/rubygems.rb, lib/rubygems/*, test/rubygems/*: Update rubygems-2.6.2.
+	  Please see entries of 2.6.2 on
+	  https://github.com/rubygems/rubygems/blob/master/History.txt
 
-Wed Nov  5 19:08:47 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Mar 28 11:02:31 2016  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
 
-	* lib/optparse.rb (OptionParser::Switch::PlacedArgument::parse):
-	  do not remove next argument if empty value is placed.
+	* lib/rubygems/test_case.rb: Fix test on Windows for inconsistent temp path.
+	  https://github.com/rubygems/rubygems/pull/1554
+	  [Bug #12193][ruby-core:74431]
 
-	* test/optparse: added.
+Mon Mar 28 08:19:49 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Nov  5 17:05:18 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* sprintf.c (rb_str_format): refactor floating point format of
+	  Rational by using generic Integer functions.
 
-	* lib/test/unit/ui/gtk/testrunner.rb: typo.
+	* sprintf.c (rb_str_format): fix buffer overflow, length must be
+	  greater than precision.  reported by William Bowling <will AT
+	  wbowling.info>.
 
-Wed Nov  5 11:13:32 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+Sun Mar 27 12:13:37 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* string.c: add #include "version.h". this file still depends on it.
+	* sprintf.c (rb_str_format): convert Rational to floating point
+	  format by using generic Integer functions, not by methods which
+	  can be overwritten.
 
-	* Makefile.in, bcc32/Makefile.sub, win32/Makefile.sub,
-	  wince/Makefile.sub: add version.h dependency to string.c.
+Sat Mar 26 10:55:12 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Nov  5 09:14:23 2003  Shugo Maeda  <shugo@ruby-lang.org>
+	* numeric.c (rb_int2str): conversion function to String for
+	  generic Integer.
 
-	* lib/monitor.rb: revert to the previous revision.
+	* numeric.c (rb_int_round): rounding function for generic
+	  Integers.
 
-Wed Nov  5 08:39:51 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* numeric.c (rb_int_{uminus,plus,minus,mul,idiv,modulo}): basic
+	  arithmetic functions for generic Integers.
 
-	* lib/webrick/https.rb (HTTPRequest#parse): set @client_cert_chain.
+	* numeric.c (FIXNUM_{POSITIVE,NEGATIVE,ZERO}_P): predict macros
+	  only for Fixnum.
 
-	* lib/webrick/https.rb (HTTPRequest#meta_vars): create
-	  SSL_CLIENT_CERT_CHAIN_n from @client_cert_chain.
+Sat Mar 26 06:34:24 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* ext/openssl/ossl_ssl.c (ossl_ssl_get_peer_cert_chain): return nil
-	  if no cert-chain was given.
+	* localeinit.c (rb_locale_charmap_index): fix prototype.
+	  patched by Andreas Schwab [Bug #12218]
 
-Tue Nov  4 23:44:48 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+Fri Mar 25 16:40:48 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* bcc32/Makefile.sub, win32/Makefile.sub, wince/Makefile.sub:
-	  remove needless version.h dependency.
+	* test/ruby/enc/test_case_mapping.rb: Additional tests title case;
+	  some not yet activated.
 
-Tue Nov  4 23:38:43 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+Fri Mar 25 13:38:11 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* class.c, hash.c, string.c: remove #include "version.h".
+	* ext/openssl/extconf.rb: check SSL_CTX_set_next_proto_select_cb
+	  function rather than OPENSSL_NPN_NEGOTIATED macro. it exists
+	  even if it is disabled by OpenSSL configuration.
+	  [ruby-core:74384] [Bug #12182]
 
-	* Makefile.in: remove needless version.h dependency.
+	* ext/openssl/ossl_ssl.c: update #ifdef(s) as above.
 
-Tue Nov  4 06:54:52 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* test/openssl/test_ssl.rb: skip NPN tests if NPN is disabled.
 
-	* io.c (read_all): fptr->f may be NULL, if IO is closed in the
-	  signal handler.
+Fri Mar 25 11:08:37 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* io.c (io_read): ditto.
+	* lib/uri/http.rb (URI::HTTP#initialize): [DOC] fix example,
+	  missing mandatory arguments.  [ruby-core:74540] [Bug #12215]
 
-	* string.c (get_pat): remove 1.8.0 warning code.
+Fri Mar 25 01:50:58 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* string.c (rb_str_match): extend warning until 1.8.2.
+	* thread_pthread.c (reserve_stack): fix reserving position where
+	  the stack growing bottom to top. [Bug #12118]
 
-	* string.c (rb_str_match2): ditto.
+Fri Mar 25 01:10:42 2016  Sebastian Schuberth  <sschuberth@gmail.com>
 
-	* class.c (class_instance_method_list): remove 1.8.0 warnings.
-	  method_list now recurs.  [ruby-dev:21816]
+	* lib/mkmf.rb (find_executable0): On Windows, it is actually valid
+	  to surround individual PATH directory entries with double
+	  quotes. Remove these before joining the path as otherwise the
+	  literal quotes would become part of the path, resulting in the
+	  executable not to be found.  [Fix GH-1305]
 
-	* class.c (rb_obj_singleton_methods): ditto.
+Thu Mar 24 22:38:18 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* array.c (rb_ary_select): remove select with block.
-	  [ruby-dev:21824]
+	* strftime.c (FMT, FMTV): remove recursive-assignments to get rid
+	  of undefined behavior.  [ruby-core:74532] [Bug #12213]
 
-	* hash.c (rb_hash_select): ditto.
+Thu Mar 24 17:44:02 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* hash.c (env_select): ditto.
+	* strftime.c (FMT_PADDING): extract format for padding.
 
-	* re.c (match_select): ditto.
+	* strftime.c (FMT_PRECISION): extract precision formula.
 
-	* struct.c (rb_struct_select): ditto.
+	* strftime.c (FMTV): append formatted string to expand the result.
 
-Mon Nov  3 22:53:21 2003  Minero Aoki  <aamine@loveruby.net>
+Thu Mar 24 14:20:21 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/racc/parser.rb: synchronize with Racc 1.4.4.
+	* strftime.c (STRFTIME): deal with case conversion flags for
+	  recursive formats.
 
-	* ext/racc/cparse/cparse.c: ditto.
+Thu Mar 24 12:43:26 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/racc/cparse/cparse.c (parse_main): should abort when
-	  the length of LR state stack <=1, not ==0.
+	* ext/date/date_core.c (dt_lite_iso8601): strftimev() always
+	  returns a String, so append them directly.
 
-Mon Nov  3 08:50:47 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* ext/date/date_core.c (d_lite_jisx0301, iso8601_timediv),
+	  (dt_lite_jisx0301): format by the format string in local buffer
+	  to prevent intermediate strings from GC.
 
-	* process.c (check_uid_switch): remove duplicated error messages.
+	* ext/date/date_core.c (mk_inspect_raw, mk_inspect): inspect by
+	  "%+"PRIsVALUE, to prevent intermediate strings from GC.
 
-	* process.c (check_gid_switch): ditto.
+Thu Mar 24 11:43:32 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Nov  2 02:28:33 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* strftime.c (rb_strftime_with_timespec): remove unnecessary
+	  check, as `s` equals to `endp` when recursed STRFTIME resized
+	  the capacity same as the size.
 
-	* lib/webrick/ssl.rb: new option :SSLExtraChainCert.
+Wed Mar 23 21:48:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-Sun Nov  2 01:02:04 2003  Akinori MUSHA  <knu@iDaemons.org>
+	* enum.c (ary_inject_op): put subtract operation out of if-clause.
 
-	* string.c (rb_str_hash): Update the HASH_PERL alternative hash
-	  algorithm in sync with Perl 5.8.
+Wed Mar 23 21:38:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* st.c (strhash): Ditto.
+	* enum.c (ary_inject_op): Use Kahan's compensated summation algorithm
+	  for summing up float values.
 
-Sat Nov  1 18:21:09 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Wed Mar 23 20:56:59 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/openssl/ossl_ssl.c (ossl_ssl_peer_cert_chain): add new method
-	  SSLSocket#peer_cert_chain.
+	* strftime.c (rb_strftime_with_timespec): append formatted results
+	  to the given string with expanding, and also deal with NUL chars.
 
-	* ext/openssl/ossl_x509req.c (GetX509ReqPtr): new function
-	  which returns underlying X509_REQ.
+	* strftime.c (rb_strftime, rb_strftime_timespec): return formatted
+	  string, not the length put in the given buffer.
 
-	* ext/openssl/ossl_x509ext.c (ossl_x509extfactory_set_issuer_cert,
-	  ossl_x509extfactory_set_subject_cert, ossl_x509extfactory_set_crl,
-	  ossl_x509extfactory_set_subject_req, ossl_x509extfactory_set_config):
-	  use underlying C struct without duplication not to leak momory.
+	* time.c (rb_strftime_alloc): no longer needs to retry with
+	  reallocating buffers.
 
-Sat Nov  1 01:49:03 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* time.c (time_strftime): no longer needs to split by NUL chars.
 
-	* lib/soap/mapping/factory.rb: mark marshalled basetype objects when
-	  @allow_original_mapping is true.  multi-referencing basetype node is
-	  prohibited in SOAP/1.1 encoding but soap4r's original ruby object
-	  mapping requires basetype to be marked to detect self referencing
-	  loop.  e.g. o = 1; o.instance_eval { @iv = o }  soap4r's original
-	  mapping is only used through soap/marshal API.
+Wed Mar 23 14:23:54 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* test/soap/marshal/test_marshal.rb: add tests for self referencing
-	  immutable objects.
+	* lib/rdoc/ri/driver.rb (interactive): rescue NotFoundError raised in
+	  expand_name. (display_name rescues NotFoundError by itself,
+	  the original logic looks buggy...)
 
-	* test/soap/calc/test_calc_cgi.rb: fix test name.
+Wed Mar 23 11:44:53 2016  cremno  <cremno@mail.ru>
 
-Fri Oct 31 22:26:29 2003  Takaaki Uematsu  <uema2x@jcom.home.ne.jp>
+	* marshal.c (r_long): cast to `signed char`, which is used
+	  already, instead of SIGN_EXTEND_CHAR.
 
-	* wince/string_wce.c (strrchr): should decrement pointer.
+	* parse.y: SIGN_EXTEND_CHAR is no longer used.  [Fix GH-1302]
 
-	* wince/Makefile.sub: correct a range of isdigit().
+Wed Mar 23 11:38:47 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Oct 31 12:55:24 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+	* cygwin/GNUmakefile.in (MSYS2_ARG_CONV_EXCL_PARAM):
+	  * add missing parentheses and remove double quotes.
+	  * rename to get rid of recursive references.
+	  * as --excludes-dir option is for a path name, its argument
+	    should be converted.
+	  [ruby-dev:49526] [Bug #12199]
 
-	* configure.in, lib/mkmf.rb: add RPATHFLAG for NetBSD.
-	  [ruby-dev:21791]
+Wed Mar 23 10:39:38 2016  Koichi ITO  <koic.ito@gmail.com>
 
-	* bcc32/Makefile.sub, win32/Makefile.sub, win32/Makefile.sub: ditto.
+	* variable.c: Added documentation about order of `Module#constants`
+	  [ci skip][Bug #12121][ruby-dev:49505][fix GH-1301]
 
-Fri Oct 31 01:38:14 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+Tue Mar 22 21:08:30 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* wince/Makefile.sub, win32/Makefile.sub (.y.c): allow white spaces
-	  at the beginning of line to remove by sed. (ruby-bugs-ja:PR#580)
+	* include/ruby/oniguruma.h: Additional flag for characters that are titlecase.
 
-Fri Oct 31 01:02:24 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* enc/unicode/case-folding.rb, casefold.h: Using above flag in data.
 
-	* compar.c (cmp_equal): protect exceptions from <=> comparison
-	  again.  returns nil if any exception or error happened during
-	  comparison.
+	* enc/unicode.c: Marking capitalized character as unmodified if it is
+	  already titlecase.
 
-	* eval.c (search_required): should update *featurep when DLEXT2 is
-	  defined. (ruby-bugs-ja:PR#581)
+	* test/ruby/enc/test_case_mapping.rb: Tests for above functionality.
 
-Thu Oct 30 23:41:04 2003  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+Tue Mar 22 14:18:59 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/drb/drb.rb: add DRbArray
+	* parse.y (lambda_body, parser_yylex): warn mismatched indentation
+	  of lambda block.
 
-	* lib/drb/invokemethod.rb: fix Hash#each problem. [ruby-dev:21773]
+Tue Mar 22 11:36:49 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* lib/drb/unix.rb: add LoadError. [ruby-dev:21743]
+	* time.c (wmul): wrong condition.
+	  fixed many test failures on 32bit and LLP64 platforms.
 
-Thu Oct 30 23:19:11 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Tue Mar 22 10:31:34 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* lib/soap/generator.rb: better XML pretty printing.
+	* time.c (wdiv, wmod): wdivmod0() assumes the 3rd and the 4th arguments
+	  are valid pointers.
+	  maybe checking them in wdivmod0() is better manner, but I guess that
+	  passing real dummy pointers may be faster than checking and branching
+	  in wdivmod0().
+	  this commit fixes SEGV on 32bit and LLP64 platforms.
 
-	* lib/soap/encodingstyle/soapHandler.rb: remove unnecessary namespace
-	  assignment in the element which has "encodingStyle" attribute, and
-	  add necessary namespace assignment for "arrayType" attribute.
+Tue Mar 22 10:24:04 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* test/soap/calc/test_calc_cgi.rb: take over $DEBUG to ruby process
-	  through CGI.
+	* time.c (divmodv): void function never returns any value.
 
-Thu Oct 30 22:59:39 2003  why the lucky stiff  <why@ruby-lang.org>
+Tue Mar 22 10:11:01 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/syck/yaml2byte.c: HASH const too long.  Thanks, matz.
+	* test/lib/test/unit.rb (Test::Unit::StatusLine#failed): print
+	  failed messages only if replacing mode, otherwise defer them
+	  until the end, to get rid of interleaving failures with progress
+	  messages.  refix r54195.
 
-Thu Oct 30 19:13:53 2003  Akinori MUSHA  <knu@iDaemons.org>
+Tue Mar 22 03:45:03 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* ext/syck/MANIFEST: Add yamlbyte.h.
+	* time.c (MUL_OVERFLOW_FIXWV_P): defined for FIXWV.
 
-Thu Oct 30 14:25:31 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* time.c (wmul): use MUL_OVERFLOW_FIXWV_P and only switch.
 
-	* io.c (READ_DATA_BUFFERED): new macro to detect whether stdio
-	  buffer filled.
+	* time.c (wmul): use mul which has Fixnum optimization.
 
-	* io.c (rb_io_fptr_cleanup): move path deallocation to
-	  rb_io_fptr_finalize (finalizer called by GC).
+	* time.c (rb_time_magnify): If WIDEVALUE_IS_WIDER, wmul() has the same
+	  optimized logic, else mul() has also the similar logic for Fixnum.
 
-Thu Oct 30 13:23:39 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* time.c (rb_time_unmagnify): almost ditto.
 
-	* parse.y (logop): left may be NULL. [ruby-talk:84539]
+Tue Mar 22 03:10:09 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* eval.c (rb_eval): NODE_CASE nd_head may be NULL.
+	* time.c (divmodv): add the case both arguments are Fixnum.
 
-Thu Oct 30 10:14:51 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* time.c (wquo): use quo which has Fixnum optimization.
 
-	* lib/test/unit/autorunner.rb: make fox runner work.
+	* time.c (wdivmod0): added for WIDEVALUE_IS_WIDER.
 
-Thu Oct 30 09:32:26 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* time.c (wdivmod): use wdivmod0 and divmodv.
+	  divmodv has Fixnum optimization.
 
-	* process.c (rb_f_system): fixed lack of security check before
-	  calling do_spawn() on win32. [ruby-talk:84555]
+	* time.c (wdiv): use wdivmod0 and div to avoid the use of divmodv which
+	  calls id_quo whose return value is array.
 
-Thu Oct 30 02:46:35 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* time.c (wmod): use wdivmod0 and mod to avoid the use of divmodv which
+	  calls id_quo whose return value is array.
 
-	* eval.c (proc_invoke): single array value to normal Proc#call
-	  (i.e. not via lambda call), should be treated just like yield.
-	  [ruby-dev:21726]
+Mon Mar 21 22:32:50 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Thu Oct 30 02:25:48 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* internal.h (rb_fix_divmod_fix): like r54213, use FIX2NUM only if
+	  x == FIXNUM_MIN && y == -1. This must be a rare case and it is
+	  expected compiler to handle well.
 
-	* ext/openssl/lib/openssl/buffering.rb (Buffering#initialize):
-	  add new method to inherit @sync from @io.sync.
+Mon Mar 21 22:15:11 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* ext/openssl/lib/net/protocols.rb (SSLIO#ssl_connect): no need to
-	  set sync flag explicitly.
+	* time.c (mod): Add Fixnum case.
 
-	* ext/openssl/ossl_ssl.c (ossl_sslctx_initialize): call super.
+	* time.c (quo): c can be Fixnum except a == FIXNUM_MIN && b == -1.
+	  Such case can be optimized out because quo()'s argument is constant.
 
-	* ext/openssl/ossl_ssl.c (ossl_sslctx_setup): set extra chain
-	  certificates in @extra_chain_cert.
+Mon Mar 21 22:09:24 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Oct 29 22:02:04 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* internal.h (rb_fix_mul_fix): multiply converted values, not
+	  object VALUEs.
 
-	* test/drb/drbtest.rb: use rbconfig.rb to make the path of ruby
-	  interpreter to exec, instead of test/ruby/envutil.rb,
+Mon Mar 21 20:18:29 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Oct 29 19:58:59 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* common.mk (TEST_EXCLUDES, EXCLUDE_TESTFRAMEWORK): use full spell
+	  long option.
 
-	* ext/tcltklib/tcltklib.c (CONST84): define CONST84 when it is not
-	  defined and TCL_MAJOR_VERSION >= 8.
+	* cygwin/GNUmakefile.in (MSYS2_ARG_CONV_EXCL): suppress path name
+	  conversions by msys2.  [ruby-dev:49525] [Bug #12199]
 
-	* ext/tcltklib/tcltklib.c (VwaitVarProc, WaitVariableProc,
-	  rb_threadVwaitProc): use CONST84 instead of CONST.
+Mon Mar 21 19:09:31 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/tcltklib/tcltklib.c (ip_rbTkWaitCommand,
-	  ip_rb_threadTkWaitCommand): use CONST84 always.
+	* string.c (enc_succ_alnum_char): try to skip an invalid character
+	  gap between GREEK CAPITAL RHO and SIGMA.
+	  [ruby-core:74478] [Bug #12204]
 
-Wed Oct 29 17:27:05 2003  Tanaka Akira  <akr@m17n.org>
+Mon Mar 21 18:55:49 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* re.c (rb_reg_s_union, Init_Regexp): new method `Regexp.union'.
+	* node.c (rb_gc_mark_node): NODE_MATCH2 can have nd_args, u3,
+	  since r54100.
 
-	* lib/pathname.rb (realpath): examine Dir.pwd because it may have
-	  symlinks.
+Sun Mar 20 21:17:13 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-Wed Oct 29 17:16:31 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* internal.h (rb_int128t2big): declare only when HAVE_INT128_T.
+	  fixed a compile error with VC++ introduced at r54203.
 
-	* eval.c (rb_longjmp): must not disturb original jump.
-	  [ruby-dev:21733]
+Sun Mar 20 20:10:14 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Wed Oct 29 15:28:34 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* internal.h (DLONG): defined if long is 32bit (and LONG_LONG is 64bit;
+	  but LONG_LONG is always defined as 64bit), or there's int128_t.
 
-	* eval.c (Init_Proc): taint preallocated exception object
-	  sysstack_error. [ruby-talk:84534]
+	* internal.h (DL2NUM): defined if DLONG is defined.
 
-Wed Oct 29 11:27:39 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* internal.h (rb_fix_mul_fix): defined for `Fixnum * Fixnum`.
 
-	* parse.y (ret_args): node may be NULL. [ruby-talk:84530]
+	* insns.def (opt_mul): use rb_fix_mul_fix().
 
-Tue Oct 28 15:20:12 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* numeric.c (fix_mul): ditto.
 
-	* ext/tcltklib/tcltklib.c (VwaitVarProc, ip_rbVwaitObjCmd,
-	  WaitVariableProc, WaitVisibilityProc, WaitWindowProc,
-	  ip_rbTkWaitObjCmd, ip_rbTkWaitCommand, rb_threadVwaitProc,
-	  rb_threadWaitVisibilityProc, rb_threadWaitWindowProc,
-	  ip_rb_threadVwaitObjCmd, ip_rb_threadTkWaitObjCmd): prototype;
-	  avoid VC++ warnings.
+	* time.c (mul): ditto.
 
-Mon Oct 27 19:19:55 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Mar 20 18:53:49 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* eval.c (rb_longjmp): ignore reentering error while warning.
-	  [ruby-dev:21730]
+	* numeric.c (fix_gt, fix_ge, fix_lt, fix_le): optimize comparisons
+	  Fixnum against Bignum by rb_big_cmp in inversed order without
+	  new Bignum instance.
 
-Mon Oct 27 00:23:50 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+Sun Mar 20 18:44:52 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* ext/tcltklib/tcltklib.c (ip_ruby): bug fix on Win : hang-up when
-	  calling 'exit' in the Tk callback procedure. [ruby-list:38656]
+	* time.c (add): remove FIXABLE() which is in LONG2NUM().
 
-Sat Oct 25 09:18:04 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* time.c (sub): ditto.
 
-	* eval.c (rb_method_missing): protect exception from within
-	  "inspect".  (ruby-bugs:PR#1204)
+	* time.c (mul): ditto.
 
-Fri Oct 24 23:26:34 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Sun Mar 20 04:46:02 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* hash.c (rb_hash_each): Hash#each should yield single value.
-	  [ruby-talk:84420]
+	* bignum.c (rb_big_cmp): reduce the code.
 
-	* hash.c (env_each): ditto for ENV.each.
+	* bignum.c (rb_big_eq): If normalized bignum is still bignum,
+	  it must be larger than fixnum.
 
-Thu Oct 23 20:25:32 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Sat Mar 20 00:58:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* lib/webrick/server.rb (GenericServer#start): should rescue
-	  IOError from IO::accept. [ruby-dev:21692]
+	* include/ruby/intern.h (rb_big_odd_p, rb_big_even_p): move to
+	  internal.h so that they are exported only for ruby itself.
 
-Thu Oct 23 17:59:36 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* internal.h (rb_big_odd_p, rb_big_even_p): ditto.
 
-	* eval.c (ruby_cleanup): initialize stack bottom for embedding.
-	  [ruby-dev:21686]
+Sat Mar 19 21:56:23 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/dl/extconf.rb: move list of files to clean from DEPEND file,
-	  to get rid of macro redefinitions.
+	* test/lib/test/unit.rb (Test::Unit::StatusLine#failed): defer
+	  failed messages until the end in verbose mode, to get rid of
+	  interleaving failures with progress messages.
 
-Thu Oct 23 13:44:00 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Mar 19 21:53:35 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* parse.y: integrate operations for stack_type.  [ruby-dev:21681]
+	* numeric.c (fix_cmp): invert the result as the comparison is
+	  inverted.
 
-Thu Oct 23 00:41:45 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Sat Mar 19 18:32:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* test/soap/calc/*, test/soap/helloworld/*: set logging threshold
-	  to ERROR.
+	* numeric.c (int_to_f): raise NotImplementedError when a receiver
+	  class is unknown.
 
-Wed Oct 22 12:53:31 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/-ext-/integer/test_my_integer.rb (test_my_integer_to_f): modify
+	  a test for the above change.
 
-	* lib/test/unit/collector/dir.rb (Test::Unit::Collector::Dir#collect_file):
-	  ignore tests which raised LoadError.
+Sat Mar 19 18:21:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* test/drb/drbtest.rb, test/ruby/test_beginendblock.rb,
-	  test/ruby/test_system.rb: avoid requiring same file twice.
+	* bignum.c (Bignum#<=>): remove it because they are unified with
+	  Integer#<=>.
 
-	* test/drb/test_drbssl.rb, test/drb/test_drbunix.rb: should not use
-	  ARGV unless invoked directly.  do not create test cases unless
-	  required libraries are available.
+	* numeric.c (Integer#<=>, Fixnum#<=>): move <=> method from Fixnum to
+	  Integer.
 
-Wed Oct 22 02:31:34 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* numeric.c (int_cmp): add this method for Integer#<=>.
 
-	* eval.c (ruby_cleanup): should not ignore exit_value in END
-	  execution. [ruby-dev:21670]
+	* test/-ext-/integer/test_my_integer.rb (test_my_integer_cmp): add a
+	  test to examine Integer#<=> for unknown subclasses.
 
-Tue Oct 21 23:16:26 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Sat Mar 19 14:46:18 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* eval.c (ruby_cleanup): call finalizers and exit procs before
-	  terminating threads.
+	* iseq.c (rb_iseq_compile_with_option): make the parser in mild
+	  error.
 
-	* eval.c (ruby_cleanup): preserve ruby_errinfo before ruby_finalize_0().
+	* load.c (rb_load_internal0): ditto.
 
-Tue Oct 21 15:57:11 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* parse.y (yycompile0): return the error message within the error
+	  to be raised.  [Feature #11951]
 
-	* lib/test/unit/collector/dir.rb (Test::Unit::Collector::Dir#collect_file):
-	  prepend the directory of target file to the load path.
+	* parse.y (parser_compile_error): accumulate error messages in the
+	  error_buffer.
 
-Tue Oct 21 15:08:53 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+Sat Mar 19 03:57:13 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* win32/win32.c (do_spawn, do_aspawn): should wait child process even
-	  if callded with P_OVERLAY.
+	* time.c (LOCALTIME): organize #ifdefs.
 
-	* win32/win32.c (do_spawn, do_aspawn): should return child's exit
-	  status to parent.
+	* time.c (GMTIME): define only ifndef HAVE_STRUCT_TM_TM_GMTOFF.
 
-Tue Oct 21 00:35:02 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Sat Mar 19 03:53:31 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* test/soap/calc/*, test/soap/helloworld/*: catch the exception from
-	  test server thread and recover.
+	* configure.in (rb_cv_member_struct_tm_tm_gmtoff): For Linux (glibc)
+	  define _BSD_SOURCE for time.h to define struct tm.tm_gmtoff.
 
-Tue Oct 21 00:22:57 2003  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+	* time.c: define _BSD_SOURCE at the top.
 
-	* test/drb/*: import drb/runit.
+Sat Mar 19 03:00:50 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-Mon Oct 20 23:55:47 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/-ext-/time/test_new.rb (test_timespec_new): change a gmtoff
+	  test to a better one that does not depend on whether the current
+	  time is in summer time or not.
 
-	* eval.c (rb_eval): set current node after arguments evaluation.
-	  [ruby-dev:21632]
+Fri Mar 19 00:00:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* eval.c (rb_yield_0): set current node and keep it at local jump.
+	* bignum.c (rb_big_to_f, Bignum#to_f): removed them because they are
+	  unified with int_to_f and Integer#to_f.
 
-Mon Oct 20 22:01:18 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* numeric.c (int_to_f): treat Bignum values directly.
 
-	* eval.c (rb_thread_cleanup): keep thread group for main thread.
-	  [ruby-dev:21644]
+Fri Mar 18 23:41:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-Mon Oct 20 18:28:10 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* numeric.c (int_to_f, fix_to_f): rename fix_to_f to int_to_f, and add
+	  treatment for subclasses which don't have definitions of to_f method.
 
-	* eval.c (rb_catch): backout.
+	* numeric.c (Integer#to_f, Fixnum#to_f): move to_f method from Fixnum
+	  to Integer.
 
-Mon Oct 20 17:31:46 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* ext/-test-/integer/my_integer.c: define helper class for testing
+	  to_f method for a subclass of Integer.
 
-	* eval.c (PUSH_FRAME): generate unique number to be TAG_JUMP()
-	  destination.
+	* ext/-test-/integer/extconf.rb: ditto.
 
-	* eval.c (localjump_destination): use unique number in ruby_frame
-	  for localjump destination.
+	* ext/-test-/integer/init.c: ditto.
 
-Mon Oct 20 11:31:44 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/-ext-/integer/test_my_integer.rb: examine to_f method for a
+	  subclass of Integer.
 
-	* test/ruby/test_signal.rb (test_signal): restore old trap.
+Fri Mar 18 22:32:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-Mon Oct 20 11:00:46 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* include/ruby/intern.h (rb_big_hash): Move to internal.h.
 
-	* gc.c (gc_sweep): loosen page free condition to avoid add_heap()
-	  race condition. [ruby-dev:21633]
+	* internal.h: ditto.
 
-	* gc.c (gc_sweep): do not update malloc_limit when malloc_increase
-	  is smaller than malloc_limit.
+Fri Mar 18 22:10:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-Mon Oct 20 09:45:12 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* bignum.c (Bignum#eql?): remove its definition because it is unified
+	  with Numeric#eql?.
 
-	* lib/debug.rb (debug_command): remove debug print.
+	* numeric.c (num_eql): treat Bignum values directly.
 
-Wed Oct 20 00:25:41 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Mar 18 21:57:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* eval.c (search_required): required name must not be changed before
-	  loading.  [ruby-dev:24492]
+	* bignum.c (rb_big_to_s, Bignum#to_s): remove its definition because
+	  it is unified with Integer#to_s.
 
-Sun Oct 19 13:12:30 2003  Tanaka Akira  <akr@m17n.org>
+	* numeric.c (int_to_s): treat Bignum values directly.
 
-	* lib/pathname.rb (foreachline, dir_foreach): add obsolete warning.
+Fri Mar 18 21:30:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-Sun Oct 19 00:14:22 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* numeric.c (int_to_s): Move from fix_to_s.
 
-	* test/soap/calc/*, test/soap/helloworkd/*: changed port# of test
-	  server. (17171)
+	* numeric.c (Integer#to_s): Move from Fixnum#to_s.
 
-Sat Oct 18 23:01:32 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+Fri Mar 18 16:22:24 2016  Victor Nawothnig  <Victor.Nawothnig@gmail.com>
 
-	* missing/acosh.c (DBL_MANT_DIG): typo fix(ifdef -> ifndef).
+	* parse.y (parse_numvar): NTH_REF must be less than a half of
+	  INT_MAX, as it is left-shifted to be ORed with back-ref flag.
+	  [ruby-core:74444] [Bug#12192] [Fix GH-1296]
 
-Sat Oct 18 05:48:59 2003  why the lucky stiff  <why@ruby-lang.org>
+Fri Mar 18 12:25:30 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/syck/rubyext.c: YAML::Syck::compile method.
+	* gc.c (tick): fix missing close parenthesis.  [Fix GH-1291]
 
-	* ext/syck/syck.c: Buffer edge bug.
+Fri Mar 18 10:24:12 2016  Naotoshi Seo  <sonots@gmail.com>
 
-	* ext/syck/yaml2byte.c: YAML to bytecode converter.
+	* ext/date/date_core.c (datetime_to_time): preserve timezone info
+	  [Bug #12189] [Fix GH-1295]
 
-	* ext/syck/yamlbyte.h: Ditto.
+Fri Mar 18 10:17:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* ext/syck/bytecode.c: Bytecode parser fixes to empty collections
-	  and empty strings.
+	* bignum.c (rb_big_hash): make it public function to be available in
+	  other source files, and remove documentation comment for Bignum#hash.
 
-	* ext/syck/token.c: Ditto.
+	* bignum.c (Bignum#hash): remove its definition because it is unified
+	  with Object#hash.
 
-Fri Oct 17 23:07:38 2003  Akinori MUSHA  <knu@iDaemons.org>
+	* include/ruby/intern.h (rb_big_hash): add a prototype declaration.
 
-	* ext/enumerator/enumerator.c, ext/enumerator/enumerator.txt:
-	  Provide Kernel#to_enum as an alias for Kernel#enum_for.  Maybe
-	  this is a better name.
+	* hash.c (any_hash): treat Bignum values directly.
 
-Fri Oct 17 23:00:30 2003  Akinori MUSHA  <knu@iDaemons.org>
+Fri Mar 18 02:35:12 2016  Naotoshi Seo  <sonots@gmail.com>
 
-	* lib/generator.rb: Add rdoc documentation.
+	* lib/time.rb (parse, strptime): Fix Time.parse/strptime does not
+	  have compatibility with DateTime.parse/strptime in terms of parsing
+	  timezone [Bug #12190] [Fix GH-1297]
 
-Fri Oct 17 22:16:42 2003  Akinori MUSHA  <knu@iDaemons.org>
+Fri Mar 18 02:17:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* lib/set.rb: Reword and fix Overview.
-
-	* lib/set.rb: It is not necessary to require
-	  'test/unit/ui/console/testrunner'.
-
-Fri Oct 17 11:15:22 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/ruby/test_range.rb: added.
-
-	* MANIFEST: add test/ruby/test_range.rb.
-
-Fri Oct 17 03:21:23 2003  William Sobel  <will.sobel@barra.com>
-
-	* ext/socket/socket.c (make_hostent): h_aliases may be NULL.
-	  (ruby-bugs:PR#1195)
-
-	* ext/socket/socket.c (sock_s_gethostbyaddr): ditto.
-
-Fri Oct 17 00:12:41 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: (bug fix) instance variable @frame was used
-	  without initializing on TkComposite module.
-
-Thu Oct 16 23:51:04 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/tk.rb: If $DEBUG == true and some exception is caused
-	  in a callback operation, Ruby/Tk shows a (verbose) backtrace
-	  information on the callback process.
-
-Thu Oct 16 17:09:19 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/debug.rb (DEBUGGER__::Context::debug_command): do not call
-	  debug_silent_eval() when $1 is not set. (ruby-bugs:PR#1194)
+	* numeric.c (fix_zero_p, fix_even_p, fix_odd_p): remove needless
+	  functions.
 
-Thu Oct 16 16:54:57 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Fri Mar 18 02:15:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* string.c (rb_str_upto): ("a"..."a").to_a should return [].
-	  [ruby-core:01634]
+	* numeric.c (int_even_p): treat Fixnum and Bignum values directly.
 
-Thu Oct 16 16:40:51 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+Fri Mar 18 02:07:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* ext/tk/lib/tk.rb:
-	  Add Tk::EncodedString and Tk::UTF8_String class to support
-	  characters using the \uXXXX escape to the UNICODE string.
+	* bignum.c (Bignum#even?, Bignum#odd?): remove definitions
+	  because they are unified with Integer#even? and Integer#odd?.
 
-	* ext/tk/sample/{demos-en,demos-jp}/unicodeout.rb
-	  new demo-scripts (samples of Tk::UTF8_String)
+	* numeric.c (Fixnum#zero?, Fixnum#even?, Fixnum#odd?): remove
+	  definitions because they are unified with Numeric#zero?,
+	  Integer#even?, and Integer#odd?.
 
-	* ext/tk/sample/{demos-en,demos-jp}/widget
-	  add entries for 'unicodeout.rb'
+	* numeric.c (num_zero_p, int_odd_p): treat Fixnum and
+	  Bignum values directly.
 
-Thu Oct 16 08:38:06 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/test_integer.rb (test_odd_p_even_p): remove meaningless
+	  test case.
 
-	* test/digest/test_digest.rb (test_eq): show failed class.
+Fri Mar 18 01:51:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* test/ruby/test_iterator.rb (test_break, test_return_trace_func):
-	  test localjump destination.
+	* bignum.c (rb_big_even_p, rb_big_odd_p): make them public functions
+	  to be available in other source files.
 
-Wed Oct 15 20:22:31 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* include/ruby/intern.h (rb_big_even_p, rb_big_odd_p): add prototype
+	  declarations.
 
-	* lib/soap/netHttpClient.rb: use URI::HTTP#request_uri instead of
-	  instance_eval('path_query').  [ruby-list:38575]
+Fri Mar 18 00:25:56 2016  Tanaka Akira  <akr@fsij.org>
 
-Wed Oct 15 17:24:45 2003  URABE Shyouhei  <root@mput.dip.jp>
+	* enum.c (ary_inject_op): Implement the specialized code for sum of
+	  float numbers.
 
-	* lib/cgi.rb (CGI::Cookie): tiny typo fix.
+Fri Mar 18 00:15:05 2016  Yusuke Endoh  <mame@ruby-lang.org>
 
-Wed Oct 15 15:00:54 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* numeric.c (num_step): use rb_equal for zero check. rb_num_coerce_cmp
+	  created an object which caused extra overhead.
 
-	* eval.c (ruby_run): just return FAILURE instead of parse error
-	  count.  [ruby-list:38569]
+Thu Mar 17 22:21:34 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Oct 15 13:17:02 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* include/ruby/ruby.h (RB_GC_GUARD_PTR): remove intermediate
+	  macro, and expand for each RB_GC_GUARD.  [Fix GH-1293]
 
-	* ext/digest/digest.c (rb_digest_base_alloc): need to initialize
-	  buffer. [ruby-dev:21622]
+Thu Mar 17 22:08:33 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Oct 15 11:23:05 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* compile.c (iseq_specialized_instruction): move specialization
+	  for opt_newarray_max/min from translation phase.
 
-	* marshal.c (w_object): dump extended modules as well.
+Thu Mar 17 21:52:09 2016  Yusuke Endoh  <mame@ruby-lang.org>
 
-	* marshal.c (r_object0): TYPE_USRMARSHAL should restore extended
-	  modules before invoking marshal_load.  these two fixes are done
-	  by Masatoshi Seki <m_seki@mva.biglobe.ne.jp>.
+	* array.c, enum.c: make rdoc format consistent.
 
-Wed Oct 15 09:30:34 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+Thu Mar 17 21:47:57 2016  Yusuke Endoh  <mame@ruby-lang.org>
 
-	* ext/enumerator/enumerator.c (enumerator_each): avoid VC++ warning.
+	* NEWS: add Array#max, #min, and the optimization.  [Feature #12172]
 
-	* ext/syck/syck.h: include stdio.h for definition of FILE.
+Thu Mar 17 21:45:02 2016  Yusuke Endoh  <mame@ruby-lang.org>
 
-Wed Oct 15 08:09:07 2003  why the lucky stiff  <why@ruby-lang.org>
+	* compile.c (NODE_CALL): add optimization shortcut for Array#max/min.
+	  Now `[x, y].max` is optimized so that a temporal array object is not
+	  created in some condition.  [Feature #12172]
 
-	* ext/syck/bytecode.c: Checkin of YAML bytecode support.
+	* insns.def (opt_newarray_max, opt_newarray_min): added.
 
-	* ext/syck/gram.c: Ditto.
+Thu Mar 17 21:35:52 2016  Yusuke Endoh  <mame@ruby-lang.org>
 
-	* ext/syck/syck.c: Ditto.
+	* array.c (rb_ary_max, rb_ary_min): implement Array#max and min with
+	  arguments.  replace super call with rb_nmin_run.
 
-	* ext/syck/token.c: Ditto.
+	* enum.c (nmin_run): exported (as rb_nmin_run).
 
-	* ext/syck/handler.c: Ditto.
+	* internal.h: added a prototype for rb_nmin_run.
 
-	* ext/syck/handler.c: Now using 'tag' rather than 'taguri' in type URIs.
+Thu Mar 17 21:24:52 2016  Yusuke Endoh  <mame@ruby-lang.org>
 
-	* ext/syck/rubyext.c: Ditto (on both counts).
+	* array.c (rb_ary_max, rb_ary_min): implement a block by itself instead
+	  of delegating Enumerable#max/min.
 
-Wed Oct 15 05:05:53 2003  Akinori MUSHA  <knu@iDaemons.org>
+Thu Mar 17 21:09:34 2016  Yusuke Endoh  <mame@ruby-lang.org>
 
-	* lib/generator.rb: A new library which converts an internal
-	  iterator to an external iterator.
+	* array.c (rb_ary_max, rb_ary_min): Array#max and Array#min added.
+	  [Feature #12172]
 
-	* lib/abbrev.rb: A new library which creates an abbreviation table
-	  from a list.
+	* internal.h (OPTIMIZED_CMP): moved from enum.c so that array.c can
+	  use it.
 
-Wed Oct 15 04:31:51 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* test/ruby/test_array.rb (test_max, test_min): tests for Array#max
+	  and Array#min.
 
-	* ext/tk/sample/demos-en/entry3.rb, ext/tk/sample/demos-jp/entry3.rb :
-	  new demo-scripts
+	* test/ruby/test_enum.rb (test_max, test_min): revised a bit to test
+	  Enumerable#max and #min explicitly.
 
-	* ext/tk/sample/demos-en/widget, ext/tk/sample/demos-jp/widget :
-	  add entries for 'entry3.rb'
+Thu Mar 17 21:02:42 2016  Yusuke Endoh  <mame@ruby-lang.org>
 
-Wed Oct 15 04:31:47 2003  Akinori MUSHA  <knu@iDaemons.org>
+	* internal.c: struct cmp_opt_data added for refactoring out a data
+	  structure for CMP_OPTIMIZABLE
 
-	* test/digest/test_digest.rb: Moved from ext/digest/test.rb.
+	* array.c (struct ary_sort_data): use struct cmp_opt_data.
 
-Wed Oct 15 03:53:20 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* enum.c (struct min_t, max_t, min_max_t): use struct cmp_opt_data.
 
-	* ext/tk/lib/tk.rb: fixed trouble on auto-load Tcl commands (enbug
-	  on the last commit).
+Thu Mar 17 20:55:21 2016  Tanaka Akira  <akr@fsij.org>
 
-Wed Oct 15 00:25:00 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* enum.c (ary_inject_op): Extracted from enum_inject.
 
-	* parse.y (yylex): argument parentheses preceded by spaces should
-	  be warned; not error.  [ruby-talk:84103]
+Thu Mar 17 18:39:04 2016  Tanaka Akira  <akr@fsij.org>
 
-Wed Oct 15 00:20:15 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* enum.c (enum_inject): Implement the specialized code for sum of
+	  integers including Bignums.
 
-	* ext/tcltklib/tcltklib.c: replace Tcl/Tk's vwait and tkwait to
-	  switch on threads smoothly and avoid seg-fault.
+	* internal.h (rb_fix_plus): Declared to be usable from enum_inject.
 
-	* ext/tcltklib/tcltklib.c: add TclTkIp._thread_vwait and
-	  _thread_tkwait for waiting on a thread. (Because Tcl/Tk's vwait
-	  and tkwait command wait on an eventloop.)
+	* numeric.c (rb_fix_plus): Defined.
 
-	* ext/tk/lib/multi-tk.rb: support TclTkIp._thread_vwait and
-	  _thread_tkwait.
+Thu Mar 17 17:20:28 2016  Anton Davydov  <antondavydov.o@gmail.com>
 
-	* ext/tk/lib/tk.rb: now, TkVariable#wait has 2 arguments.
-	  If 1st argument is true, waits on a thread. If false, waits on
-	  an eventloop. If 2nd argument is true, checks existence of
-	  rootwidgets. If false, doesn't. Default is wait(true, false).
+	* thread_sync.c: [DOC] Update documentation for Queue class
+	  description.  [Fix GH-1292]
 
-	* ext/tk/lib/tk.rb: add TkVariable#tkwait(arg) which is equal to
-	  TkVariable#wait(arg, true). wait_visibility and wait_destroy
-	  have an argument for waiting on a thread or an eventloop.
+Thu Mar 17 17:14:51 2016  Dinar Valeev  <dvaleev@suse.com>
 
-	* ext/tk/lib/tk.rb: improve of accessing Tcl/Tk's special variables.
+	* gc.c (tick): Use __builtin_ppc_get_timebase for POWER arch.
+	  [Fix GH-1291]
 
-	* ext/tk/lib/tkafter.rb: support 'wait on a thread' and 'wait on
-	  an eventloop'.
+Thu Mar 17 11:51:48 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Wed Oct 15 00:10:24 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* lib/securerandom.rb (gen_random): to avoid blocking on Windows.
+	  On Windows OpenSSL RAND_bytes (underlying implementation is
+	  RAND_poll in crypto/rand/rand_win.c) may be blocked at
+	  NetStatisticsGet.
+	  https://wiki.openssl.org/index.php/Random_Numbers#Windows_Issues
+	  Instead of this, use Random.raw_seed directly (whose implementation
+	  CryptGenRandom is one of the source of
+	  entropy of RAND_poll on Windows).
+	  https://wiki.openssl.org/index.php/Random_Numbers
+	  Note: CryptGenRandom function is PRNG and doesn't check its entropy,
+	  so it won't block. [Bug #12139]
+	  https://msdn.microsoft.com/ja-jp/library/windows/desktop/aa379942.aspx
+	  https://tools.ietf.org/html/rfc4086#section-7.1.3
+	  https://eprint.iacr.org/2007/419.pdf
+	  http://www.cs.huji.ac.il/~dolev/pubs/thesis/msc-thesis-leo.pdf
 
-	* lib/soap/baseData.rb: Introduce SOAPType as the common ancestor of
-	  SOAPBasetype and SOAPCompoundtype.
+Thu Mar 17 12:09:00 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* lib/soap/generator.rb, lib/soap/element.rb, lib/soap/encodingstyle/*:
-	  Encoding methods signature change.  Pass SOAPGenerator as a parameter.
+	* enc/unicode.c: Fixed two macro definitions.
+	* test/ruby/enc/test_case_mapping.rb: Test cases that detected
+	  the above bugs.
 
-	* lib/soap/mapping/*, test/soap/marshal/test_marshal.rb: Refactoring
-	  for better marshalling/unmarshalling support.  Now I think SOAP
-	  marshaller supports all kind of object graph which is supported by
-	  Ruby's original marshaller.  Of course there could be bugs as always.
-	  Find it.  :-)
+Thu Mar 17 11:36:27 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/soap/rpc/standaloneServer.rb: Set severity threshould to INFO.
-	  DEBUG is too noisy.
+	* ext/socket/option.c (inspect_tcpi_msec): more accurate condition
+	  for TCPI msec member inspection function.
+	  [ruby-core:74388] [Bug #12185]
 
-	* lib/xsd/datatypes.rb: DateTime#of is obsoleted.  Use DateTime#offset.
+Thu Mar 17 08:13:43 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-	* test/wsdl/emptycomplextype.wsdl, test/xsd/xmlschema.xml: Avoid
-	  useless warning.
+	* test/-ext-/time/test_new.rb (test_timespec_new): Time#gmtoff values
+	  are the same only when both or neither of the Time objects are in
+	  summer time (daylight-saving time).
 
-Tue Oct 14 19:09:35 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Mar 17 07:17:36 2016  Eric Hodel  <drbrain@segment7.net>
 
-	* eval.c (ruby_finalize_0): return the given exit status unless
-	  SystemExit got raised.
+	* marshal.c (r_object0):  raise ArgumentError when linking to undefined
+	  object.
 
-Tue Oct 14 11:53:49 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Mar 17 00:45:00 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-	* intern.h (ruby_stop): never return.
+	* test/ruby/test_bignum.rb: Make sure to use Bignum values in the tests.
 
-	* ruby.h (ruby_run): ditto.
+Wed Mar 16 23:10:25 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Oct 14 04:43:55 2003  Tanaka Akira  <akr@m17n.org>
+	* defs/keywords (alias, undef): symbol literals are allowed.
 
-	* lib/pathname.rb (realpath): make ELOOP check bit more robust.
-	  (children): prepend self by default.
-	  (chroot): obsoleted.
+	* parse.y (parse_percent): should parse symbol literals for alias
+	  and undef.  [ruby-dev:47681] [Bug #8851]
 
-Tue Oct 14 02:29:31 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Mar 16 21:39:39 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* eval.c (rb_require_safe): segfault after loading .so.
+	* enc/trans/JIS: update Unicode's notice. [Bug #11844]
 
-Tue Oct 14 02:05:23 2003  Akinori MUSHA  <knu@iDaemons.org>
+Wed Mar 16 20:03:35 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/Setup*, ext/enumerator/*: Add ext/enumerator, a helper
-	  module for the Enumerable interface.
+	* proc.c (proc_binding): proc from symbol can not make a binding.
+	  [ruby-core:74100] [Bug #12137]
 
-Mon Oct 13 23:55:59 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+Wed Mar 16 18:42:45 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* test/ruby/envutil.rb: use Config::CONFIG["ruby_install_name"],
-	  not "ruby".
+	* test/ruby/enc/test_case_mapping.rb: Fixed and activated a test for Cherokee.
 
-Mon Oct 13 23:57:29 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Mar 16 17:58:56 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* eval.c (rb_feature_p): match by classified suffix.
+	* test/ruby/enc/test_case_mapping.rb: Fixed a logical error.
 
-	* eval.c (rb_require_safe): require library in the specified safe
-	  level.
+Wed Mar 16 17:57:34 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* variable.c (rb_autoload, rb_autoload_load): restore safe level
-	  when autoload was called.  [ruby-dev:21338]
+	* test/ruby/enc/test_case_mapping.rb: Adding tests for Cherokee.
+	  One test not yet working.
+	  (with Kimihito Matsui)
 
-	* intern.h: prototypes; rb_require_safe.
+Wed Mar 16 15:44:05 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* test/runner.rb: accept non-option arguments.
+	* test/ruby/enc/test_case_mapping.rb: Adding tests for actual Unicode
+	  case mapping. Fixing some aliasing issues.
+	  (with Kimihito Matsui)
 
-Mon Oct 13 20:49:51 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Tue Mar 15 21:38:28 2016  Tanaka Akira  <akr@fsij.org>
 
-	* string.c (str_new4): should not preserve FL_TAINT status in the
-	  internal shared string. [ruby-dev:21601]
+	* enum.c (enum_inject): Consider redefinition of Fixnum#+.
+	  [ruby-dev:49510] [Bug#12178] Reported by usa.
 
-	* string.c (rb_str_new4): ditto.
+Tue Mar 15 20:32:57 2016  Tanaka Akira  <akr@fsij.org>
 
-	* eval.c: use EXIT_SUCCESS and EXIT_FAILURE for exit values.
+	* enum.c (enum_inject): Implement the specialized code for :+ operator
+	  for Fixnums.
 
-	* process.c: ditto. [ruby-list:38521]
+Tue Mar 15 20:21:01 2016  Tanaka Akira  <akr@fsij.org>
 
-Mon Oct 13 19:51:02 2003  Koji Arai  <jca02266@nifty.ne.jp>
+	* enum.c (enum_inject): Implement the specialized code for self is an
+	  array and a symbol operator is given.
 
-	* lib/debug.rb (debug_command): should enter emacs mode when
-	  assigned any value to the environment variable "EMACS".
-	  On Meadow, (getenv "EMACS") is "meadow".
+Tue Mar 15 16:29:51 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Sun Oct 12 14:45:03 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+	* enc/unicode.c: Eliminating common code.
+	  (with Kimihito Matsui)
 
-	* ext/win32ole/extconf.rb: check "windows.h", not "windows".
-	  [ruby-talk:84051]
+Tue Mar 15 16:17:09 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Sat Oct 11 20:41:03 2003  Corinna Vinschen  <corinna@vinschen.de>
+	* enc/unicode.c: Expansion of some code repetition in preparation for
+	  elimination of common code pieces.
+	  (with Kimihito Matsui)
 
-	* file.c (eaccess): Use access(2) on Cygwin.
+Tue Mar 15 13:49:23 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Sat Oct 11 17:09:21 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+	* enc/unicode.c: Additional macros and code to use mapping data in
+	  CaseMappingSpecials array.
+	  (with Kimihito Matsui)
 
-	* lib/rexml/quickpath.rb (REXML::QuickPath::match):
-	  escape '[' to avoid warning.
+Tue Mar 15 13:41:22 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Oct 11 16:08:41 2003  Tanaka Akira  <akr@m17n.org>
+	* internal.h (rb_gc_mark_global_tbl): should be private,
+	  but was accidentally exported.
 
-	* lib/pathname.rb (realpath): check existence of the file.
+Tue Mar 15 12:51:06 2016  Marcus Stollsteimer  <sto.mar@web.de>
 
-	* lib/pathname.rb (realpath): re-implemented.
-	  (realpath_root?, realpath_rec): removed
+	* doc/extension.ja.rdoc: Fix RDoc markup in doc/extension*.rdoc.
+	  [ci skip][Bug #12143][ruby-core:74143]
+	* doc/extension.rdoc: ditto.
 
-Sat Oct 11 10:19:39 2003  Shugo Maeda  <shugo@ruby-lang.org>
+Tue Mar 15 09:56:41 2016  Ian Lunderskov  <ian.lunderskov@gmail.com>
 
-	* lib/monitor.rb: handle exceptions correctly. Thanks, Gennady
-	  Bystritsky.
+	* time.c: Minor typo in Time#dst? documentation.
+	  [ci skip][fix GH-1290]
 
-Fri Oct 10 07:50:54 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Mar 15 04:36:41 2016  Charles Oliver Nutter  <headius@headius.com>
 
-	* eval.c (is_defined): inheritance line adjustment as like as
-	  rb_call_super().
+	* test/ruby/test_rubyoptions.rb (test_disable): add tests for
+	  --disable-gems and --disable-did_you_mean.
 
-Fri Oct 10 01:19:00 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Tue Mar 15 03:35:04 2016  Eric Hodel  <drbrain@segment7.net>
 
-	* ext/openssl/ossl_x509name.c (ossl_x509name_initialize): add
-	  optional argument to specify the DirectoryString type
-	  (ASN1::UTF8STRING by default). RFC3280 deprecates PrintableString
-	  for DirectoryString, and strongly requires to use UTF8String for
-	  all certificates issued after December, 31 2003.
+	* marshal.c (r_object0): Fix Marshal crash for corrupt extended object.
 
-	* ext/openssl/lib/openssl/x509.rb (X509::Name::parse): ditto.
+Tue Mar 15 01:22:27 2016  Charles Oliver Nutter  <headius@headius.com>
 
-Thu Oct  9 23:50:21 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/test_rubyoptions.rb: make version matching support
+	  JRuby's version output.
 
-	* eval.c (rb_thread_start_0): prevent thread from GC.
-	  [ruby-dev:21572]
+Mon Mar 14 19:05:39 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Thu Oct  9 19:11:44 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* bignum.c (big2str_2bdigits): reduce div instruction.
 
-	* eval.c (rb_thread_start_0): non-volatile should be restored from
-	  volatile.
+Mon Mar 14 18:39:53 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Thu Oct  9 17:43:36 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* include/ruby/oniguruma.h, enc/unicode.c: Adjusting flag assignments
+	  and macros to work with unified CaseMappingSpecials array.
+	  (with Kimihito Matsui)
 
-	* eval.c (proc_save_safe_level, proc_get_safe_level,
-	  proc_set_safe_level): save/restore safe level 1..4.
+Mon Mar 14 16:53:37 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Oct  9 16:33:23 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* compile.c (compile_named_capture_assign): optimize named capture
+	  assignments, by replacing repeating global variable accesses
+	  with `dup`, and by returning the matched result instead of
+	  re-getting it from the MatchData.
 
-	* marshal.c (r_object0): remove unnecessary iv restoration for
-	  USRMARSHAL. [ruby-dev:21582]
+	* parse.y (reg_named_capture_assign_gen): build just assignment
+	  nodes for the optimization.
 
-	* marshal.c (w_object): dump generic instance variables from
-	  a string from '_dump'.
+Mon Mar 14 16:02:59 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* variable.c (rb_generic_ivar_table): return 0 if obj's FL_EXIVAR
-	  is not set.
+	* file.c (ruby_is_fd_loadable): now return -1 if loadable but
+	  may block.
 
-	* time.c (time_dump): copy instance variables to dumped string, to
-	  be included in the marshaled data.
+	* ruby.c (open_load_file): wait to read by the result of
+	  ruby_is_fd_loadable, without fstat.
 
-	* bignum.c (rb_big2ulong): add range check to ensure round trip.
+Mon Mar 14 13:38:38 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Thu Oct  9 15:45:27 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* numeric.c (fix2str): improve r54092 like rb_int2big().
 
-	* pack.c (uv_to_utf8): change message to "out of range", since
-	  negative values are not "too big". [ruby-dev:21567]
+Mon Mar 14 10:02:23 2016  Eric Wong  <e@80x24.org>
 
-Thu Oct  9 14:05:38 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/openssl/ossl_ssl.c (ossl_sslctx_setup): document as MT-unsafe
+	  [ruby-core:73803] [Bug #12069]
 
-	* eval.c (rb_set_end_proc, rb_exec_end_proc): restore safe level.
-	  [ruby-dev:21557]
+Sun Mar 13 09:43:23 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Oct  9 10:51:04 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* include/ruby/win32.h (O_SHARE_DELETE): change to fit Fixnum
+	  limit.  [ruby-core:74285] [Bug #12171]
 
-	* eval.c (rb_yield_0): no error if block is empty.
+Sun Mar 13 09:15:45 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Oct  9 06:43:33 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* numeric.c (rb_fix2str): fix edge case, accidentally generated
+	  wrong Fixnum from LONG_MIN.
 
-	* eval.c (localjump_error): id should be ID.
+Sat Mar 12 09:50:27 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* eval.c (rb_eval): nd_rval is set in copy_node_scope().
+	* vm_eval.c (rb_f_catch): [DOC] fix malformed RDoc syntax, "+...+"
+	  cannot enclose non-identifier characters.
+	  a patch by Sebastian S in [ruby-core:74278].  [Bug#12170]
 
-	* eval.c (rb_yield_0): unused variable.
+Sat Mar 12 02:44:48 2016  Tanaka Akira  <akr@fsij.org>
 
-	* eval.c (rb_yield_0): nothing to do for empty node.
+	* test/lib/test/unit.rb: describe !/REGEXP/ in the help message.
 
-	* eval.c (call_end_proc, proc_invoke): adjust backtrace in END.
-	  [ruby-dev:21551]
+Fri Mar 11 17:03:09 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* eval.c (rb_thread_start_0): set the value by break as the result.
-	  [ruby-dev:21552]
+	* test/lib/test/unit.rb (Options#non_options): make regexp name
+	  options prefixed with "!" negative filters.
 
-	* eval.c (rb_thread_start_0, rb_thread_raise, rb_callcc): save
-	  variables across THREAD_SAVE_CONTEXT.
+	* common.mk (TEST_EXCLUDES): use negative filter to exclude memory
+	  leak tests.  -x option excludes test files, not test methods.
 
-Thu Oct  9 12:05:46 2003  Eric Sunshine  <sunshine@sunshineco.com>
+Fri Mar 11 16:11:27 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* configure.in: revived NextStep, OpenStep, and Rhapsody ports which
-	  had become unbuildable; enhanced --enable-fat-binary option so that
-	  it accepts a list of desired architectures (rather than assuming a
-	  fixed list), or defaults to a platform-appropriate list if user does
-	  not provide an explicit list; made the default list of architectures
-	  for MAB (fat binary) more comprehensive; now uses -fno-common even
-	  when building the interpreter (in addition to using it for
-	  extensions), thus allowing the interpreter to be embedded into a
-	  plugin module of an external project (in addition to allowing
-	  embedding directly into an application); added checks for
-	  <netinet/in_systm.h> (needed by `socket' extension) and getcwd(); now
-	  ensures that -I/usr/local/include is employed when extensions'
-	  extconf.rb scripts invoke have_header() since extension checks on
-	  NextStep and OpenStep will fail without it if the desired resource
-	  resides in the /usr/local tree; fixed formatting of --help message.
+	* enc/unicode/case-folding.rb, casefold.h: Streamlining approach to
+	  case mapping data not available from case folding by unifying all
+	  three cases (special title, special upper, special lower).
+	* enc/unicode.c: Adjust macro names for above (macros are currently inactive).
+	  (with Kimihito Matsui)
 
-	* Makefile.in: $(LIBRUBY_A) rule now deletes the archive before
-	  invoking $(AR) since `ar' on Apple/NeXT can not "update" MAB archives
-	  (see configure's --enable-fat-binary option); added rule for new
-	  missing/getcwd.c.
+Thu Mar 10 17:34:16 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* defines.h: fixed endian handling during MAB build (see configure's
-	  --enable-fat-binary option) to ensure that all portions of the
-	  project see the correct WORDS_BIGENDIAN value (some extension modules
-	  were getting the wrong endian setting); added missing constants
-	  GETPGRP_VOID, WNOHANG, WUNTRACED, X_OK, and type pid_t for NextStep
-	  and OpenStep; removed unnecessary and problematic HAVE_SYS_WAIT_H
-	  define in NeXT section.
+	* iseq.c (prepare_iseq_build): enable coverage by coverage_enabled
+	  option, not by parse_in_eval flag in the thread context.
 
-	* dir.c: do not allow NAMLEN() macro to trust dirent::d_namlen on
-	  NextStep since, on some installations, this value always resolves
-	  uselessly to zero.
+	* iseq.h (rb_compile_option_struct): add coverage_enabled flag.
 
-	* dln.c: added error reporting to NextStep extension loader since the
-	  previous behavior of failing silently was not useful; now ensures
-	  that NSLINKMODULE_OPTION_BINDNOW compatibility constant is defined
-	  for OpenStep and Rhapsody; no longer includes <mach-o/dyld.h> twice
-	  on Rhapsody since this header lacks multiple-include protection,
-	  which resulted in "redefinition" compilation errors.
+	* parse.y (yycompile0): set coverage_enabled flag if coverage
+	  array is made.
 
-	* main.c: also create hard reference to objc_msgSend() on NeXT
-	  platforms (in addition to Apple platforms).
+Thu Mar 10 15:19:54 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/mkmf.rb: now exports XCFLAGS from configure script to extension
-	  makefiles so that extensions can be built MAB (see configure's
-	  --enable-fat-binary option); also utilize XCFLAGS in cc_command()
-	  (but not cpp_command() because MAB flags are incompatible with
-	  direct invocation of `cpp').
+	* node.c (dump_option): nd_compile_option is a hidden hash object,
+	  cannot call inspect on it.
 
-	* ext/curses/extconf.rb: now additionally checks for presence of these
-	  curses functions which are not present on NextStep or Openstep:
-	  bkgd(), bkgdset(), color(), curs(), getbkgd(), init(), scrl(), set(),
-	  setscrreg(), wattroff(), wattron(), wattrset(), wbkgd(), wbkgdset(),
-	  wscrl(), wsetscrreg()
+Thu Mar 10 09:49:54 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-	* ext/curses/curses.c: added appropriate #ifdef's for additional set of
-	  curses functions now checked by extconf.rb; fixed curses_bkgd() and
-	  window_bkgd() to correctly return boolean result rather than numeric
-	  result; fixed window_getbkgd() to correctly signal an error by
-	  returning nil rather than -1.
+	* test/socket/test_socket.rb (test_udp_recvmsg_truncation):
+	  AIX does not set the MSG_TRUNC flag for a message partially read
+	  by recvmsg(2) with the MSG_PEEK flag set.
 
-	* ext/etc/etc.c: setup_passwd() and setup_group() now check for null
-	  pointers before invoking rb_tainted_str_new2() upon fields extracted
-	  from `struct passwd' and `struct group' since null pointers in some
-	  fields are common on NextStep/OpenStep (especially so for the
-	  `pw_comment' field) and rb_tainted_str_new2() throws an exception
-	  when it receives a null pointer.
+Wed Mar  9 16:48:45 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/pty/pty.c: include "util.h" for strdup()/ruby_strdup() for
-	  platforms such as NextStep and OpenStep which lack strdup().
+	* benchmark/driver.rb: fix my last commit (syntax error).
 
-	* ext/socket/getaddrinfo.c: cast first argument of getservbyname(),
-	  gethostbyaddr(), and gethostbyname() from (const char*) to non-const
-	  (char*) for older platforms such as NextStep and OpenStep.
+Wed Mar  9 16:41:44 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/socket/socket.c: include "util.h" for strdup()/ruby_strdup() for
-	  platforms such as NextStep and OpenStep which lack strdup(); include
-	  <netinet/in_systm.h> if present for NextStep and OpenStep; cast first
-	  argument of gethostbyaddr() and getservbyname() from (const char*) to
-	  non-const (char*) for older platforms.
+	* benchmark/driver.rb: fix output messages.
 
-	* ext/syslog/syslog.c: include "util.h" for strdup()/ruby_strdup() for
-	  platforms such as NextStep and OpenStep which lack strdup().
+	* benchmark/memory_wrapper.rb: use respond_to? because
+	  member? does not work well.
 
-Wed Oct  8 22:19:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
+Wed Mar  9 16:20:25 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/test/unit.rb: removed installation instructions.
+	* benchmark/driver.rb: support memory usage benchmark.
+	  use `--measure-target=[target]'.
+	  Now, we can use the following targets:
+	    * real (default): real time which returns process time in sec.
+	    * peak: peak memory usage (physical memory) in bytes.
+	    * size: last memory usage (physical memory) in bytes.
 
-	* lib/test/unit/ui/testrunnermediator.rb: moved the run flag to a more
-	  central location.
+	* benchmark/memory_wrapper.rb: ditto.
 
-	* lib/test/unit.rb: ditto.
+Wed Mar  9 15:04:22 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/test/unit.rb: extracted the running code in to AutoRunner.
+	* benchmark/bm_vm3_gc_old_full.rb: add GC.start benchmark.
 
-	* lib/test/unit/autorunner.rb: added.
+	* benchmark/bm_vm3_gc_old_immediate.rb: ditto.
 
-	* lib/test/unit/collector/objectspace.rb: extracted common test
-	  collection functionality in to a module.
+	* benchmark/bm_vm3_gc_old_lazy.rb: ditto.
 
-	* lib/test/unit/collector.rb: ditto; added.
+Wed Mar  9 14:59:11 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* test/testunit/collector/test_objectspace.rb: ditto.
+	* benchmark/driver.rb: exit benchmarking if a benchmark process
+	  receives signals.
 
-	* lib/test/unit/collector/dir.rb: added. Supports collecting tests out
-	  of a directory structure.
+Wed Mar  9 13:22:49 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/testunit/collector/test_dir.rb: added.
+	* test/lib/memory_status.rb: make Memory::Status independent of
+	  MiniTest::Skip.
 
-	* test/runner.rb: simplified to use the new capabilities.
+	* test/lib/test/unit/assertions.rb (assert_no_memory_leak): skip
+	  if Memory::Status is not available.
 
-Tue Oct  7 15:23:09 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Wed Mar  9 09:19:55 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-	* test/ruby/test_beginendblock.rb: add tests for nested BEGIN/END.
+	* test/io/wait/test_io_wait.rb (test_wait_readwrite_timeout):
+	  select(2) in AIX returns "readable" for the write-side fd
+	  of a pipe, so it is not possible to use a pipe to test
+	  the read-write timeout of IO#wait on AIX.
 
-	* test/ruby/beginmainend.rb: add tests for nested BEGIN/END.
+Wed Mar  9 03:35:22 2016  Charles Oliver Nutter  <headius@headius.com>
 
-	* test/ruby/endblockwarn.rb: new file added to test of END-in-method
-	  warning.
+	* test/ruby/test_require.rb (test_require_with_loaded_features_pop):
+	  Only remove PATH so threads don't accidentally double-pop.
 
-Tue Oct  7 12:23:47 2003  Tanaka Akira  <akr@m17n.org>
+Wed Mar  9 00:29:46 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/fcntl/fcntl.c (Init_fcntl): define Fcntl::O_ACCMODE.
+	* vm_method.c (rb_alias): the original name should be properly
+	  available method_added method, set the name before calling the
+	  hook.
 
-	* ext/socket/extconf.rb: useless assignment removed.
+Wed Mar  9 00:07:03 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Oct  7 09:13:24 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/logger.rb (Logger::LogDevice#initialize): define using
+	  keyword arguments.
 
-	* test/ruby/test_beginendblock.rb (test_endinmethod): END{} is now
-	  allowed in eval.
+Tue Mar  8 23:37:07 2016  Charles Oliver Nutter  <headius@headius.com>
 
-Tue Oct  7 04:15:25 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* test/ruby/test_array.rb: split out the test for no stack error
+	  on large input for test_permutation, test_repeated_permutation,
+	  and test_repeated_combination, and make them all timeout:30.
 
-	* parse.y (stmt): should not expand mrhs if lhs is solely starred.
+Tue Mar  8 17:20:21 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Tue Oct  7 02:57:53 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* intern.h (rb_divmod): assume compilers `/` and `%` comply C99
+	  and reduce branching. If a compiler doesn't comply, add #ifdefs.
 
-	* parse.y (stmt): rhs of multiple assignment should not be
-	  expanded using "to_a". [ruby-dev:21527]
+	* intern.h (rb_div): added for Ruby's behavior.
 
-Tue Oct  7 01:42:34 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* intern.h (rb_mod): added for Ruby's behavior.
 
-	* ext/openssl/ossl_asn1.c (ossl_asn1_get_asn1type): use appropriate
-	  free function for ASN1_OBJECT.
+	* insns.def (opt_div): use rb_div.
 
-	* ext/openssl/ossl_asn1.c (ossl_asn1obj_get_sn): add new function for
-	  ASN1::ObjectId#sn; it returns short name text representation of OID.
+	* insns.def (opt_mod): use rb_mod.
 
-	* ext/openssl/ossl_asn1.c (ossl_asn1obj_get_ln): add new function for
-	  ASN1::ObjectId#ln; it returns long name text representation of OID.
+	* numeric.c (fixdivmod): removed.
 
-	* ext/openssl/ossl_asn1.c (ossl_asn1obj_get_oid): add new function for
-	  ASN1::ObjectId#oid; it returns numerical representation of OID.
+	* numeric.c (fix_divide): use rb_div.
 
-Mon Oct  6 22:59:46 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* numeric.c (fix_mod): use rb_mod.
 
-	* lib/csv.rb (IOReader, BasicWriter): call binmode when a given IO
-	  respond_to?(:binmode).  record separator was wrong when you gave
-	  text mode IO to Reader.parse and Writer.generate.
+	* numeric.c (fix_divmod): use rb_divmod.
 
-	* test/csv/test_csv.rb: add tests for above change.
+Tue Mar  8 17:53:09 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Sun Oct  5 23:27:09 2003  Tanaka Akira  <akr@m17n.org>
+	* insns.def (opt_mod): show its method name on ZeroDivisionError.
+	  [Bug #12158]
 
-	* ext/socket/extconf.rb: check recvmsg even if sendmsg is exists.
+Tue Mar  8 17:33:38 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* ext/socket/socket.c (thread_read_select): restored.
+	* win32/win32.c (rb_w32_write_console): now no need to check
+	  ERROR_CALL_NOT_IMPLEMENTED because it is for old Win9X.
 
-Mon Oct  6 16:23:38 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Mar  8 16:54:29 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* marshal.c (w_object): wrong method name in the message.
+	* win32/win32.c (rb_w32_write_console): stop the VT100 emulation if the
+	  console supports it natively.
 
-Mon Oct  6 16:02:05 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Tue Mar  8 08:13:01 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-	* parse.y (stmt): END in method should cause warning.
-	  [ruby-dev:21519]
+	* test/net/imap/test_imap.rb (test_idle_timeout): Because of the
+	  timeout specified in "imap.idle(0.2)", there is no guarantee that
+	  the server thread has done all the work before the client thread
+	  performs the assertions. It depends on the thread scheduling.
+	  Add checks to avoid false positives (on AIX, particularly).
 
-Mon Oct  6 15:17:23 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Tue Mar  8 00:42:22 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* test/ruby/test_iterator.rb (test_block_argument_without_paren):
-	  added. (follows sample/test.rb)
+	* ruby.c (warn_cr_in_shebang): meaningless check on DOSISH platforms.
+	  fixed a test failure introduced at r53998.
 
-Mon Oct  6 11:57:06 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Tue Mar  8 00:27:53 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-	* test/ruby/test_beginendblock.rb, test/ruby/beginmainend.rb: added
-	  test for eval-ed BEGIN END order.
+	* ext/tk/lib/tkextlib/tcllib/tablelist_tile.rb: fix method name typo.
+	  [ruby-core:72513] [Bug #11893] The patch provided by Akira Matsuda.
 
-Mon Oct  6 09:19:54 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
-	* marshal.c (w_object): should pass "weak" value to next level.
-	  [ruby-dev:21496]
+Tue Mar  8 00:25:08 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-	* eval.c (proc_alloc): should not use cached object if klass is
-	  different. [ruby-talk:83685]
+	* ext/tk/lib/tkextlib/tcllib/toolbar.rb: fix method name typo.
+	  [ruby-core:72511] [Bug #11891] The patch provided by Akira Matsuda.
 
-Sun Oct  5 23:27:09 2003  Tanaka Akira  <akr@m17n.org>
 
-	* lib/pathname.rb: version information is added in document.
+Tue Mar  8 00:21:58 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-Sun Oct  5 23:07:03 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/tk/lib/tkextlib/blt/tree.rb: fix method name typo.
+	  [ruby-core:72510] [Bug #11890] The patch provided by Akira Matsuda.
 
-	* eval.c (rb_f_END): block should be given.  [ruby-dev:21497]
 
-Sun Oct  5 22:51:23 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Tue Mar  8 00:11:47 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-	* lib/ext/openssl/extconf.rb: add check for some engine functions
-	  unavailable in OpenSSL-0.9.6.
+	* ext/tk/lib/tk/menubar.rb: fix a typo in font name. [ruby-core:72505]
+	  [Bug #11886] The patch provided by Akira Matsuda.
 
-	* lib/ext/openssl/ossl_engine.c: ditto.
+	* ext/tk/sample/*.rb: ditto.
 
-Sun Oct  5 17:56:30 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Mar  7 13:32:58 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* eval.c (rb_eval): fix evaluation order.  [ruby-list:38431]
+	* class.c (rb_define_class, rb_define_class_id_under): raise
+	  ArgumentError if super is 0, deprecated behavior which has been
+	  warned long time.
 
-Sun Oct  5 15:05:06 2003  akira yamada  <akira@ruby-lang.org>
+Mon Mar  7 13:28:30 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/uri/*: translated RUNIT to Test::Unit.
+	* internal.h: move function declarations for class internals from
+	  include/ruby/intern.h.
 
-Sun Oct  5 14:37:39 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Mon Mar  7 10:58:07 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/xsd/datatypes.rb: Rational -> Decimal string bug fix.
+	* ext/win32ole/win32ole_event.c (rescue_callback): use
+	  rb_write_error_str instead of rb_write_error, to respect
+	  the encoding and prevent the message from GC.
 
-	* test/soap/marshal/test_marshal.rb: ditto.
+	* internal.h (rb_write_error_str): export.
 
-	* test/soap/calc/test_calc_cgi.rb: add Config::CONFIG["EXEEXT"] to
-	  RUBYBIN.
+Mon Mar  7 01:38:41 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-Sun Oct  5 13:47:22 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* test/ruby/test_process.rb (test_execopts_gid): Skip a test
+	  that is known to fail on AIX. AIX allows setgid to
+	  a supplementary group, but Ruby does not allow the "-e"
+	  option when setgid'ed, so the test does not work as intended.
 
-	* test/ruby/test_beginendblock.rb, test/ruby/beginmainend.rb: add tests
-	  about scope, order and allowed syntax.
+Sun Mar  6 22:43:41 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Oct  5 11:54:29 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* io.c (rb_obj_display): [DOC] fix output of Array, as Array#to_s
+	  is same as Array#inspect since 1.9.
 
-	* test/ruby/envutil.rb: added.  split "rubybin" from test_system.rb.
+Sat Mar  5 09:50:58 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-	* test/ruby/test_system.rb: use envutil.rb
+	* test/socket/test_addrinfo.rb (test_ipv6_address_predicates):
+	  IN6_IS_ADDR_V4COMPAT and IN6_IS_ADDR_V4MAPPED are broken
+	  on AIX, so skip related tests.
 
-	* test/ruby/test_beginendblock.rb: added.
+Sat Mar  5 09:17:54 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-	* test/ruby/beginmainend.rb: added.  used in test_beginendblock.rb.
+	* test/rinda/test_rinda.rb (test_make_socket_ipv4_multicast):
+	  The fifth argument to getsockopt(2) should be modified to
+	  indicate the actual size of the value on return,
+	  but not in AIX. This is a know bug. Skip related tests.
+	* test/rinda/test_rinda.rb (test_ring_server_ipv4_multicast):
+	  ditto.
+	* test/rinda/test_rinda.rb (test_make_socket_unicast): ditto.
+	* test/socket/test_basicsocket.rb (test_getsockopt): ditto.
+	* test/socket/test_sockopt.rb (test_bool): ditto.
 
-Sun Oct  5 11:23:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
+Sat Mar  5 07:36:27 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-	* test/testunit/runit/test_testresult.rb: removed some unnecessary
-	  cruft.
+	* test/-ext-/float/test_nextafter.rb: In AIX,
+	  nextafter(+0.0,-0.0)=+0.0, and nextafter(-0.0,+0.0)=-0.0,
+	  but they should return -0.0 and +0.0, respectively. This is
+	  a known bug in nextafter(3) on AIX, so skip related tests.
 
-Sun Oct  5 11:14:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
+Sat Mar  5 07:14:10 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-	* lib/rubyunit.rb: aliasing TestCase into the top level is
-	  problematic.
+	* test/zlib/test_zlib.rb (test_adler32_combine, test_crc32_combine):
+	  Skip two tests on AIX because zconf.h in zlib does not correctly
+	  recognize _LARGE_FILES in AIX. The problem was already reported
+	  to zlib, and skip these tests until it is fixed.
 
-	* lib/runit/assert.rb: fixed a couple of bugs caused by recent
-	  refactoring in Test::Unit.
+Sat Mar  5 03:07:40 2016  Rei Odaira  <Rei.Odaira@gmail.com>
 
-	* test/testunit/runit/*: added.
+	* thread_pthread.c (getstack): __pi_stacksize returned by
+	  pthread_getthrds_np() is wrong on AIX. Use
+	  __pi_stackend - __pi_stackaddr instead.
 
-Sun Oct  5 10:55:29 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Fri Mar  4 19:19:42 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/open-uri.rb (URI::Generic#find_proxy): no_proxy support did not
-	  work.  [ruby-dev:21484]
+	* gc.c: use 2 bits with unsigned int for rb_objspace::flags::mode
+	  because it always returns 0 to 2 (non-negative value).
 
-Sun Oct  5 09:52:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
+Fri Mar  4 18:42:08 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/test/unit/assertions.rb: will use pp for output if available.
-	  Can be disabled by setting Assertions.use_pp = false.
+	* gc.c: rename "enum gc_stat" to "enum gc_mode"
+	  because there is a same name (no related) function gc_stat().
 
-	* test/testunit/test_assertions.rb: made a small change to exception
-	  formatting.
+	  Also gc_stat_* are renamed to gc_mode_*,
+	  gc_stat_transition() to gc_mode_transition(),
+	  rb_objspace::flags::stat is renamed to rb_objspace::flags::mode.
 
-Sun Oct  5 07:42:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
+	  Change rb_objspace::flags::mode from 2 bits to 3 bits because VC++
+	  returns negative enum value with 2 bits.
 
-	* lib/test/unit/assertions.rb: made small improvements to assertion
-	  messages. Deprecated Assertions#assert_not_nil; use #assert instead.
+	* gc.c (gc_mode): add a macro to access rb_objspace::flags::mode
+	  with verification code (verification is enabled only on
+	  RGENGC_CHECK_MODE > 0).
 
-	* test/testunit/test_assertions.rb: ditto.
+	* gc.c (gc_mode_set): same macro for setter.
 
-	* test/testunit/util/test_procwrapper.rb: use #assert instead of
-	  #assert_not_nil.
+Fri Mar  4 09:28:18 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Sun Oct  5 04:10:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
+	* lib/rubygems.rb, lib/rubygems/*, test/rubygems/*: Update rubygems-2.6.1.
+	  Please see entries of 2.6.0 and 2.6.1 on
+	  https://github.com/rubygems/rubygems/blob/master/History.txt
+	  [fix GH-1270] Patch by @segiddins
 
-	* lib/test/unit/assertions.rb: refactored message building.
+Thu Mar  3 14:09:00 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Oct  5 03:40:22 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* lib/ostruct.rb (modifiable?, new_ostruct_member!, table!):
+	  rename methods for internal use with suffixes and make private,
+	  [ruby-core:71069] [Bug #11587]
 
-	* ext/openssl/ossl_asn1.h: global symbols should be declared
-	  as external.
+Wed Mar  2 16:28:48 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Oct  5 03:03:20 2003  akira yamada  <akira@ruby-lang.org>
+	* vm_eval.c (method_missing): call by found method entry and get
+	  rid of searching the same method entry twice.
 
-	* test/ruby/test_exception.rb (test_else): added.
+	* vm_eval.c (vm_call0_body): calling method_missing method is
+	  method_missing().
 
-Sun Oct  5 02:12:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
+Wed Mar  2 15:13:33 2016  herwinw  <herwin@quarantainenet.nl>
 
-	* lib/test/unit/assertions.rb: changed assertion messages to rely more
-	  heavily on #inspect. Added backtrace filtering for exceptions in
-	  assertion messages.
+	* lib/xmlrpc.rb: Removed broken parser named XMLScanStreamParser.
+	  It's not works with current Ruby version.
+	  [fix GH-1271][ruby-core:59588][Bug #9369]
+	* lib/xmlrpc/config.rb: ditto.
+	* lib/xmlrpc/parser.rb: ditto.
 
-	* test/testunit/test_assertions.rb: ditto.
+Wed Mar  2 15:08:33 2016  herwinw  <herwin@quarantainenet.nl>
 
-Sun Oct  5 02:12:00 2003  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+	* lib/xmlrpc.rb: Removed broken parser named XMLTreeParser.
+	  Required gem of its parser didn't compile on newer Ruby versions.
+	  [fix GH-1271][ruby-core:59590][Bug #9370]
+	* lib/xmlrpc/config.rb: ditto.
+	* lib/xmlrpc/parser.rb: ditto.
 
-	* lib/drb/acl.rb, lib/drb/ssl.rb: added.
+Tue Mar  1 11:25:48 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/drb/drb.rb: exit from a thread using 'break'.
+	* lib/fileutils.rb: use keyword arguments instead of option
+	  hashes.
 
-Sat Oct  4 21:49:14 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+Mon Feb 29 16:50:20 2016  hanachin  <hanachin@gmail.com>
 
-	* gc.c (Init_stack): the type of space is changed to unsigned int
-	  from double.  [ruby-dev:21483]
+	* array.c (rb_ary_push_m): [DOC] Remove trailing comma from
+	  Array#push example, as other Array examples doesn't put trailing
+	  comma.  [Fix GH-1279]
 
-Sat Oct  4 17:52:59 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Mon Feb 29 16:31:01 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/soap/netHttpClient.rb: follow http-access2.  hosts which matches
-	  ENV['no_proxy'] or ENV['NO_PROXY'] are not proxyed.
-	  - [,:] separated. ("ruby-lang.org:rubyist.net")
-	  - no regexp. (give "ruby-lang.org", not "*.ruby-lang.org")
-	  - if you want specify host by IP address, give full address.
-	    ("192.168.1.1, 192.168.1.2")
+	* common.mk, tool/mkconfig.rb: set cross_compiling option from
+	  Makefile, but not from rbconfig.rb, which is just going to be
+	  created by this command.
 
-	* lib/soap/rpc/cgistub.rb: return "Status: XXX MMM" line.
+Sun Feb 28 23:13:49 2016  C.J. Collier  <cjcollier@linuxfoundation.org>
 
-	* test/runner.rb: give testsuite name.
+	* configure.in: Add summary to end of configure output.
+	  [Fix GH-1275]
 
-Sat Oct  4 15:16:02 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Sun Feb 28 20:23:36 2016  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
 
-	* marshal.c (w_object): instance variable dump do not cause error
-	  for objects that cannot be dumped, if they traversed from
-	  marshal_dump.  they are just ignored.
+	* lib/drb/drb.rb (error_print): Add verbose failure messages and
+	  avoid infamous DRb::DRbConnError. [Feature #12101]
 
-	* gc.c (Init_stack): cast "space" (doble value) into unsigned
-	  int.  should run on PowerPC.
+Sun Feb 28 13:40:46 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* eval.c (rb_eval): should not execute else part if any exception
-	  is caught. [ruby-dev:21482]
+	* error.c (nometh_err_initialize): add private_call? parameter.
 
-	* parse.y (f_args): should allow unparenthesized block argument.
+	* error.c (nometh_err_private_call_p): add private_call? method,
+	  to tell if the exception raised in private form FCALL or VCALL.
+	  [Feature #12043]
 
-	* parse.y (f_rest_arg): should allow unparenthesized rest
+	* vm_eval.c (make_no_method_exception): append private_call?
 	  argument.
 
-Sat Oct  4 14:59:51 2003  Tanaka Akira  <akr@m17n.org>
-
-	* lib/pathname.rb (initialize): raise ArgumentError if argument has
-	  '\0' character.
-	  (relative_path_from): new method.
-	  (each_entry): new method for replacement of dir_foreach.
-	  (foreach, foreachline, dir_foreach, chdir): obsoleted.
-
-Sat Oct  4 12:58:48 2003  akira yamada  <akira@ruby-lang.org>
-
-	* test/uri/* (6 files): added.
-
-Sat Oct  4 12:44:45 2003  akira yamada  <akira@ruby-lang.org>
-
-	* lib/uri/ftp.rb, lib/uri/mailto.rb: renamed to #to_s from #to_str.
-
-Sat Oct  4 07:33:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
-
-	* lib/test/unit/testsuite.rb: changed #<< to return self, and added
-	  #delete.
-
-	* test/testunit/test_testsuite.rb: ditto. Also slightly refactored
-	  #test_size.
-
-	* lib/test/unit/collector/objectspace.rb: collector now preserves the
-	  hierarchy of suites.
-
-	* test/testunit/collector/test_objectspace.rb: ditto.
-
-Sat Oct  4 04:48:49 2003  why the lucky stiff  <why@ruby-lang.org>
-
-	* ext/syck/rubyext.c: default keys handled.
-
-	* ext/syck/syck.h: lowered default buffer size to 16k for increased
-	  performance.
-
-	* test/yaml: checkin of basic unit tests.
-
-Sat Oct  4 04:24:19 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/extconf.rb: add check for X509V3_set_nconf.
-
-	* ext/openssl/ossl_x509ext.c (ossl_x509extfactory_set_config):
-	  cannot implement if X509V3_set_nconf doesn't exist.
-
-Sat Oct  4 02:12:44 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* lib/xsd/datatypes.rb: dump sign by itself.  under the problematic
-	  platform, sprintf("%+.10g", -0.0) => +0.  sigh.
-
-	* sample/wsdl/amazon/*: update schema ver2 to ver3.
-
-Sat Oct  4 01:33:46 2003  Tanaka Akira  <akr@m17n.org>
-
-	* lib/pathname.rb (initialize): duplicate and freeze argument.
-	  (to_s): return duplicated string.
-	  (children): new method.
-	  (each_line): new alias to foreachline.
-
-Fri Oct  3 16:13:19 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_asn1.c: add DER encoder and decoder.
-
-	* ext/openssl/ossl_asn1.h: add OpenSSL::ASN1 module.
-
-	* ext/openssl/ossl.c (Init_openssl): call Init_ossl_asn1.
-
-	* ext/openssl/extconf.rb: check if X509_ATTRIBUTE has field "single".
-
-	* ext/openssl/ossl_x509attr.c (ossl_x509attr_set_value): accept
-	  DER encoded data argument.
-
-	* ext/openssl/ossl_x509attr.c (ossl_x509attr_get_value): return
-	  DER encoded data in OpenSSL::ASN1 types.
-
-Fri Oct  3 13:02:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
-
-	* lib/test/unit.rb: refactored to use optparse.
-
-	* lib/test/unit.rb: added support for selecting the output
-	  level from the command-line.
-
-	* lib/test/unit.rb: added a command-line switch to stop processing
-	  the command-line, allowing arguments to be passed to tests.
-
-	* lib/test/unit.rb: changed the method for specifying a runner or a
-	  filter from the command-line.
-
-	* lib/test/unit/collector/objectspace.rb: fixed a bug causing all
-	  tests to be excluded when the filter was set to an empty array.
-
-	* test/testunit/collector/test_objectspace.rb: ditto.
-
-Fri Oct  3 08:14:32 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* lib/irb/ruby-lex.rb (RubyLex::identify_identifier): support
-	  'class ::Foo' syntax. [ruby-talk:83514]
-
-Fri Oct  3 08:01:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
-
-	* lib/test/unit/assertions.rb: added a default message for #assert,
-	  #assert_block, and #flunk.
-
-	* test/testunit/test_assertions.rb: ditto.
-
-	* lib/test/unit/failure.rb: failures now show a better trace of where
-	  they occurred.
-
-	* test/testunit/test_failure.rb: ditto (added).
-
-	* lib/test/unit/testcase.rb: ditto.
-
-	* test/testunit/test_testcase.rb: ditto.
-
-	* lib/test/unit/util/backtracefilter.rb: added.
-
-	* test/testunit/util/test_backtracefilter.rb: added.
-
-	* lib/test/unit/error.rb: changed to use BacktraceFilter and improved
-	  output.
-
-	* test/testunit/test_error.rb: ditto.
-
-Thu Oct  2 20:33:49 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/iconv/iconv.c (iconv_failure_initialize): conform with
-	  orthodox initialization method.
-
-	* ext/iconv/iconv.c (iconv_fail): initialize exception instance
-	  from the class, and do not share instance variables with the
-	  others.  [ruby-dev:21470]
-
-Thu Oct  2 18:20:27 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* time.c (Init_Time): define initialize.  [ruby-dev:21469]
-
-Thu Oct  2 17:39:38 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_engine.c: add a new module OpenSSL::Engine.
-	  it supports OpenSSL hardware cryptographic engine interface.
-
-	* ext/openssl/ossl_engine.h: ditto.
-
-	* ext/openssl/MANIFEST: add ossl_engine.c and ossl_engine.h.
-
-	* ext/openssl/extconf.rb: add check for openssl/engine.h.
-
-	* ext/openssl/ossl.c: call Init_ossl_engine().
-
-	* ext/openssl/ossl.h: include openssl/engine.h.
-
-	* ext/openssl/ossl_pkey_{rsa,dsa,dh}.c: check if underlying
-	  EVP_PKEY referes engine.
-
-Thu Oct  2 17:22:37 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* time.c (time_load): restore instance variables (if any) before
-	  loading from marshaled data.
-
-Thu Oct  2 14:19:15 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/iconv/iconv.c (iconv_fail): now yield erred substring, and
-	  set error object to $!.
-
-	* ext/iconv/iconv.c (iconv_convert): error handler block should
-	  return appended part and the rest.  if rest is nil, the
-	  conversion stops.
-
-Thu Oct  2 12:00:18 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* variable.c (rb_const_defined_0): look up constants in Object as
-	  well.  [ruby-dev:21458]
-
-	* test/ruby/test_defined.rb (TestDefined::test_defined): test for
-	  constants.
-
-Thu Oct  2 11:17:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
-
-	* lib/test/unit/assertions.rb: should not capture an
-	  AssertionFailedError unless explicitly requested.
-
-	* test/testunit/test_assertions.rb: ditto.
-
-	* test/testunit/collector/test_objectspace.rb: fixed a test failure
-	  caused by methods being returned in different orders on different
-	  platforms by moving test sorting from TestSuite into the locations
-	  where suites are constructed. [ruby-talk:83156]
-
-	* lib/test/unit/testcase.rb: ditto.
-
-	* lib/test/unit/testsuite.rb: ditto.
-
-	* lib/test/unit/collector/objectspace.rb: ditto.
-
-Thu Oct  2 03:25:01 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* eval.c (rb_thread_raise): prototype; avoid VC++ warning.
-
-Thu Oct  2 01:37:34 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* time.c (time_mdump): new marshal dumper. _dump is still
-	  available for compatibility.
-
-	* time.c (time_mload): new marshal loader.
-
-	* marshal.c (w_object): preserve instance variables for objects
-	  with marshal_dump.
+	* vm_insnhelper.c (ci_missing_reason): copy FCALL flag.
 
-	* marshal.c (r_object0): restore instance variables before calling
-	  marshal_load.
+Sun Feb 28 10:19:47 2016  Ryan T. Hosford  <tad.hosford@gmail.com>
 
-	* error.c (rb_warn_m): always return nil.
+	* array.c (rb_ary_and): clarify that set intersection returns the
+	  unique elements common to both arrays.
 
-Thu Oct  2 01:32:46 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* array.c (rb_ary_or): clarify that union preserves the order from
+	  the given arrays.
 
-	* eval.c (rb_f_block_given_p): real required condition is
-	  ruby_frame->prev->iter == ITER_CUR.
+Sat Feb 27 17:05:29 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* eval.c (rb_block_given_p): ditto.
+	* enc/unicode/case-folding.rb, casefold.h: Reducing size of TitleCase
+	  table by eliminating duplicates.
+	  (with Kimihito Matsui)
 
-	* eval.c (block_pass): update ruby_frame->iter only when previous
-	  value is ITER_NOT.
+Fri Feb 26 14:40:48 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Oct  2 01:02:35 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* numeric.c (num_step_scan_args): comparison String with Numeric
+	  should raise TypeError. it is an invalid type, but not a
+	  mismatch the number of arguments.  [ruby-core:62430] [Bug #9810]
 
-	* variable.c (rb_const_defined_at): should exclude constants from
-	  Object when TYPE(klass) == T_MODULE *and* exclude is on.
-	  [ruby-dev:21458]
+Fri Feb 26 14:39:39 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* variable.c (rb_const_get_0): do not lookup constants from Object
-	  when TYPE(klass) == T_MODULE *and* exclude is on.
+	* doc/extension.rdoc, doc/extension.ja.rdoc: add editor local
+	  variables, with commenting out by :enddoc: directives which are
+	  just ignored unless code object mode.  [Bug #12111]
 
-Thu Oct  2 00:21:11 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Fri Feb 26 12:25:56 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* test/logger/test_logger.rb: unlinking file before close causes
-	  problem under win32 box.
+	* doc/extension.ja.rdoc: removed rendering error caused by editor specific
+	  configuration on http://docs.ruby-lang.org/en/trunk/extension_rdoc.html .
+	  [Bug #12111][ruby-core:73990]
 
-	* lib/xsd/datatypes.rb(XSDFloat, XSDDouble): add +/- sign explicitly
-	  when stringified and embedded into XML instance.  Ruby's sprintf may
-	  format -0.0 as "0.0" (no minus sign) depending on underlying C
-	  sprintf implementation.
+Fri Feb 26 11:21:41 2016  herwinw  <herwin@quarantainenet.nl>
 
-	* test/xsd/test_xsd.rb, test/soap/test_basetype.rb: follow above change.
+	* lib/xmlrpc.rb: Removed references to NQXML. It's obsoleted parser.
+	  [fix GH-1245][ruby-core:59593][Feature #9371]
+	* lib/xmlrpc/config.rb: ditto.
+	* lib/xmlrpc/parser.rb: ditto.
 
-	* test/soap/calc/*: give httpd config param "CGIInterpreter".
-	  "/usr/bin/env ruby" thing does not work under non-Unix boxes.
+Fri Feb 26 11:10:19 2016  Rick Salevsky  <rsalevsky@suse.com>
 
-Sat Oct  2 00:42:20 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* lib/tmpdir.rb: Unify to coding-style for method definition.
+	  [fix GH-1252]
 
-	* marshal.c (r_byte): retrieve pointer from string value for each
-	  time.  [ruby-dev:24404]
+Fri Feb 26 11:02:04 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* marshal.c (r_bytes0): ditto.
+	* README.md: update markdown syntax for anchor tag.
+	  [fix GH-1265] Patch by @lukBarros
 
-	* enum.c (sort_by_i): re-entrance check added.  [ruby-dev:24399]
+Fri Feb 26 10:52:29 2016  Alex Boyd  <alex@opengroove.org>
 
-	* io.c (io_read): should freeze all reading buffer.
-	  [ruby-dev:24400]
+	* lib/irb.rb: avoid to needless truncation when using back_trace_limit option.
+	  [fix GH-1205][ruby-core:72773][Bug #11969]
 
-	* string.c (rb_str_sum): should use bignums when bits is greater
-	  than or equals to sizeof(long)*CHAR_BITS. [ruby-dev:24395]
+Fri Feb 26 08:11:58 2016  Aaron Patterson <tenderlove@ruby-lang.org>
 
-	* eval.c (specific_eval): defer pointer retrieval to prevent
-	  unsafe sourcefile string modification.  [ruby-dev:24382]
+	* gem_prelude.rb: Reduce system calls by activating the `did_you_mean`
+	  gem before requiring the gem.  Activating the gem puts the gem on
+	  the load path, where simply requiring the file will search every gem
+	  that's installed until it can find a gem that contains the
+	  `did_you_mean` file.
 
-	* string.c (rb_str_sum): wrong cast caused wrong result.
-	  [ruby-dev:24385]
+Thu Feb 25 19:04:13 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* enum.c (enum_sort_by): hide temporary array from
-	  ObjectSpace.each_object.  [ruby-dev:24386]
+	* enc/unicode/case-folding.rb: Adding possibility for debugging output
+	  for TitleCase table in casefold.h.
+	  (with Kimihito Matsui)
 
-	* string.c (rb_str_sum): check was done with false pointer.
-	  [ruby-dev:24383]
+Wed Feb 24 22:31:13 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* string.c (rb_str_sum): string may be altered.  [ruby-dev:24381]
+	* include/ruby/oniguruma.h: Rearranging flag assignments and making
+	  space for titlecase indices; adding additional macros to add or
+	  extract titlecase index; adding comments for better documentation.
+	* enc/unicode.c: Moving some macros to include/ruby/oniguruma.h;
+	  activating use of titlecase indices.
+	  (with Kimihito Matsui)
 
-Thu Oct  2 00:25:21 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Feb 24 21:03:04 2016  Tanaka Akira  <akr@fsij.org>
 
-	* signal.c (ruby_signal_name): adjust to the prototype.
+	* random.c (limited_rand): Add a specialized path for when the limit fits
+	  in 32 bit.
 
-	* process.c (pst_inspect): ditto.
+Tue Feb 23 21:52:24 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/etc/etc.c (etc_getgrent, Init_etc): typo.
+	* enc/unicode/case-folding.rb, casefold.h: Outputting actual titlecase
+	  data (new table, with indices from other tables).
+	* enc/unicode.c: Ignoring titlecase data indices for the moment.
+	  (with Kimihito Matsui)
 
-Wed Oct  1 20:49:41 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Feb 23 15:21:14 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* gc.c (heaps): manage slots and limits together.  [ruby-dev:21453]
+	* enc/unicode/case-folding.rb, casefold.h: Reading casing data from
+	  SpecialCasing.txt.
+	  (with Kimihito Matsui)
 
-	* gc.c (add_heap): should not clear heaps slot even if realloc()
-	  failed.
+Mon Feb 22 18:33:55 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Wed Oct  1 20:36:49 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+	* enc/unicode/case-folding.rb, casefold.h: Adding flag for title-case,
+	  not yet operational.
+	  (with Kimihito Matsui)
 
-	* MANIFEST: add wince/mkconfig_wce.rb.
+Mon Feb 22 18:17:03 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Wed Oct  1 17:22:33 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* enc/unicode/case-folding.rb, casefold.h: Fixed bug that avoided inclusion
+	  of compatibility characters in upper-/lower-case mappings.
+	  (with Kimihito Matsui)
 
-	* ext/etc/etc.c: add new functions: setpwent, getpwent, endpwent,
-	  setgrent, getgrent, endgrent.
+Sun Feb 21 13:57:18 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/socket/socket.c (sock_s_gethostbyname): do not reverse lookup.
+	* cgi/escape/escape.c: Optimize CGI.unescape performance by C ext
+	  for ASCII-compatible encodings.  [Fix GH-1250]
 
-Wed Oct  1 17:01:30 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Feb 21 13:56:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* eval.c (rb_load): Object scope had priority over required file
-	  scope.  [ruby-dev:21415]
+	* cgi/escape/escape.c: Optimize CGI.unescapeHTML performance by C
+	  ext for ASCII-compatible encodings.  [Fix GH-1242]
 
-Wed Oct  1 14:09:53 2003  Takaaki Uematsu  <uema2x@jcom.home.ne.jp>
+Sat Feb 20 15:38:16 2016  Eric Wong  <e@80x24.org>
 
-	* wince/mkconfig_wce.rb: sorry, forget to commit.
+	* doc/extension.rdoc: update paths for defs/ directory
 
-Wed Oct  1 10:08:42 2003  Takaaki Uematsu  <uema2x@jcom.home.ne.jp>
+Sat Feb 20 14:44:15 2016  Lucas Buchala  <lucasbuchala@gmail.com>
 
-	* wince/setup.mak: add sigmarionIII SDK support.
+	* vm_eval.c (rb_mod_module_eval): [DOC] Fix documentation
+	  signature for Module#module_eval.  [Fix GH-1258]
 
-	* wince/Makefile.sub: ditto.
+Sat Feb 20 14:40:44 2016  Adam O'Connor  <northband@gmail.com>
 
-	* wince/mkexports.rb: fix linker error in SH4.
+	* README.md: a few grammatical changes to the main Ruby README.md.
+	  [Fix GH-1259]
 
-	* wince/mkconfig_wce.rb: camouflage RUBY_PLATFORM for compiling ext.
+Sat Feb 20 13:04:22 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Oct  1 08:02:52 2003  Takaaki Uematsu  <uema2x@jcom.home.ne.jp>
+	* dir.c (push_pattern, push_glob): deal with read paths as UTF-8
+	  to stat later, on Windows as well as OS X.
+	  [ruby-core:73868] [Bug #12081]
 
-	* wince/time_wce.c (time): add zero check.
+Sat Feb 20 01:53:33 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Sep 30 16:11:05 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* object.c (rb_mod_const_get): make error message at uninterned
+	  string consistent with symbols.  [ruby-dev:49498] [Bug #12089]
 
-	* Makefile.in: copy lex.c from $(srcdir) if it's not the current
-	  directory.  [ruby-dev:21437]
+Fri Feb 19 23:37:52 2016  Masahiro Tomita  <tommy@tmtm.org>
 
-Tue Sep 30 11:29:23 2003  Tanaka Akira  <akr@m17n.org>
+	* lib/find.rb (Find#find): raise with the given path name if it
+	  does not exist.  [ruby-dev:49497] [Bug #12087]
 
-	* process.c (pst_inspect): describe stopped process "stopped".
+Fri Feb 19 12:44:57 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Tue Sep 30 09:31:56 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* enc/unicode.c: Activated use of case mapping data in CaseUnfold_11 array.
+	  (with Kimihito Matsui)
 
-	* test/runner.rb: glob for directories.
+Fri Feb 19 11:08:32 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Sep 30 09:11:43 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* ext/extmk.rb: add cygwin case, nothing excluded.
+	  [ruby-core:73806] [Bug#12071]
 
-	* eval.c (rb_eval): while/until should not capture break unless
-	  they are destination of the break.
+Thu Feb 18 21:32:15 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-Tue Sep 30 03:12:02 2003  Minero Aoki  <aamine@loveruby.net>
+	* man/irb.1: fix output in EXAMPLES.
 
-	* lib/net/http.rb (finish): revert to 1.93.
+Thu Feb 18 21:05:47 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/net/pop.rb (finish): revert to 1.60.
+	* string.c (sym_match_m): delegate to String#match but not
+	  String#=~.  [ruby-core:72864] [Bug #11991]
 
-	* lib/net/smtp.rb (finish): revert to 1.67.
+Thu Feb 18 14:15:38 2016  Shota Fukumori  <her@sorah.jp>
 
-	* lib/net/http.rb (do_start): ensure to close socket if failed to
-	  start session.
+	* re.c: Add MatchData#named_captures
+	  [Feature #11999] [ruby-core:72897]
 
-	* lib/net/pop.rb (do_start): ditto.
+	* test/ruby/test_regexp.rb(test_match_data_named_captures): Test for above.
 
-	* lib/net/smtp.rb (do_start): ditto.
+	* NEWS: News about MatchData#named_captures.
 
-	* lib/net/smtp.rb: SMTP#started? wrongly returned false always.
+Wed Feb 17 21:41:29 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Sep 30 02:54:49 2003  Minero Aoki  <aamine@loveruby.net>
+	* defs/id.def (predefined): add idLASTLINE and idBACKREF for $_
+	  and $~ respectively.
 
-	* test/ruby/test_iterator.rb: new test
-	  test_break__nested_loop[123].
+	* parse.y: use idLASTLINE and idBACKREF instead of rb_intern.
 
-Mon Sep 29 23:39:13 2003  Minero Aoki  <aamine@loveruby.net>
+Wed Feb 17 20:23:38 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/net/http.rb (finish): does not raise IOError even if
-	  !started?, to allow closing socket which was opened before
-	  session started.
+	* string.c (rb_str_init): fix segfault and memory leak, consider
+	  wide char encoding terminator.
 
-	* lib/net/pop.rb (finish): ditto.
+Wed Feb 17 12:14:59 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/net/smtp.rb (finish): ditto.
+	* string.c (rb_str_init): introduce String.new(capacity: size)
+	  [Feature #12024]
 
-Mon Sep 29 19:06:51 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+Tue Feb 16 19:10:08 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/win32ole/extconf.rb: add windows.h checking.
-	  (ruby-bugs:PR#1185)
+	* enc/unicode/case-folding.rb, casefold.h: Used only first element
+	  (rather than all) of target in CaseUnfold_11 array.
+	  (with Kimihito Matsui)
 
-Mon Sep 29 16:18:30 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Tue Feb 16 18:24:38 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/logger.rb: check if the given logdevice object respond_to :write
-	  and :close, not is_a? IO.  duck duck.
+	* numeric.c (compare_with_zero): fix variable name, rb_cmperr
+	  requires VALUEs but not an ID.
 
-	* test/logger/test_logger.rb: self IO.pipe reading/writing may be
-	  locked by the flood.  use tempfile.
+Tue Feb 16 17:34:18 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/wsdl/xmlSchema/data.rb: wrong constant reference.
+	* dir.c (rb_dir_s_empty_p): add Dir.empty? method, which tells the
+	  argument is the name of an empty directory.  [Feature #10121]
 
-Mon Sep 29 16:11:23 2003  Minero Aoki  <aamine@loveruby.net>
+Tue Feb 16 09:51:20 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/fileutils/test_fileutils.rb: clean up temporary symlink.
-	  Patched by NaHi.  [ruby-dev:21420]
+	* tool/rbinstall.rb (without_destdir): just strip a drive letter
+	  which is prepended by with_destdir.
+	  pointed out by @DavidEGrayson.
+	  https://github.com/ruby/ruby/commit/0e5f9ae#commitcomment-16101763
 
-Mon Sep 29 11:16:55 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Tue Feb 16 04:42:13 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* eval.c (rb_thread_atfork): wrong format specifier.
-	  [ruby-dev:21428]
+	* insns.def (opt_plus): simply use LONG2NUM() instead of wrongly
+	  complex overflow case.
 
-	* process.c (pst_inspect): better description.
+	* insns.def (opt_sub): ditto.
 
-Mon Sep 29 02:31:44 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Tue Feb 16 02:49:41 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/webrick/utils.rb (Utils::su): use setgid and setuid to
-	  set real and effective IDs. and setup group access list by
-	  initgroups.
+	* tool/rbinstall.rb (without_destdir): compare with the destdir
+	  after stripping a drive letter, on dosish platforms.
+	  pointed out by @DavidEGrayson.
+	  https://github.com/ruby/ruby/commit/d0cf23b#commitcomment-16100407
 
-Sun Sep 28 11:14:19 2003  Koji Arai  <jca02266@nifty.ne.jp>
+Mon Feb 15 15:44:09 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/digest/digest.c (Init_digest): `copy_object' was deprecated.
-	  `initialize_copy' should be defined.
+	* parse.y (parse_ident): allow keyword arguments just after a
+	  method where the same name local variable is defined.
+	  [ruby-core:73816] [Bug#12073]
 
-	* ext/stringio/stringio.c (Init_stringio): ditto.
+Mon Feb 15 14:43:28 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Sat Sep 27 18:25:13 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* enc/unicode/case-folding.rb: Added debugging option
+	  (with Kimihito Matsui)
 
-	* lib/xsd/charset.rb: XSD::Charset.is_ces did return always true under
-	  $KCODE = "NONE" environment.  check added.
+Sun Feb 14 17:31:50 2016  Lars Kanis  <lars@greiz-reinsdorf.de>
 
-	* test/xsd/test_xsd.rb: add tests for above fix.
+	* lib/mkmf.rb (with_{cpp,c,ld}flags): copy caller strings not to
+	  be modified, in append_{cpp,c,ld}flags respectively.
+	  [Fix GH-1246]
 
-Sat Sep 27 15:58:50 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Sun Feb 14 16:18:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/soap/rpc/cgistub.rb: make logging severity threshold higher.
+	* eval.c (setup_exception): set the cause only if it is explicitly
+	  given or not set yet.  [Bug #12068]
 
-	* lib/soap/rpc/standaloneServer.rb: defer WEBrick server start to give
-	  a chance to reset logging severity threshold.
+Sat Feb 13 21:44:58 2016  Tanaka Akira  <akr@fsij.org>
 
-	* test/soap/calc/test_*, test/soap/helloworld/test_helloworld.rb: run
-	  silent.
+	* hash.c (rb_hash_invert): [DOC] more examples.
 
-Sat Sep 27 09:44:18 2003  Minero Aoki  <aamine@loveruby.net>
+Sat Feb 13 17:30:49 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/fileutils/test_fileutils.rb: clear all errors on Windows.
-	  [ruby-dev:21417]
+	* lib/uri/generic.rb (URI::Generic#find_proxy): support CIDR in
+	  no_proxy.  [ruby-core:73769] [Feature#12062]
 
-	* test/fileutils/test_nowrite.rb: ditto.
+Sat Feb 13 17:11:58 2016  Fabian Wiesel  <fabian.wiesel@sap.com>
 
-Mon Sep 27 09:14:03 2004  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* lib/uri/generic.rb (find_proxy): exclude white-spaces and allow
+	  for a leading dot in the domain name in no_proxy.
+	  [ruby-core:54542] [Feature #8317]
 
-	* array.c (rb_ary_delete): comparison may change the capacity.
-	  [ruby-dev:24348]
+Fri Feb 12 12:20:56 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* array.c (rb_ary_fill): fill should honor length argument.
-	  [ruby-dev:24346]
+	* error.c (name_err_initialize, nometh_err_initialize): [DOC] fix
+	  argument positions.  optional parameters except for the message
+	  are placed at the last.
 
-	* array.c (rb_ary_replace): should not use ptr from shared array.
-	  [ruby-dev:24345]
+Fri Feb 12 11:49:49 2016  Anthony Dmitriyev  <antstorm@gmail.com>
 
-	* ext/socket/socket.c (s_accept): don't retry for EWOULDBLOCK.
-	  [ruby-talk:113807]
+	* net/ftp.rb: add NullSocket#closed? to fix closing not opened
+	  connection.  [Fix GH-1232]
 
-Sat Sep 27 04:57:07 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Fri Feb 12 11:17:38 2016  Bogdan  <bogdanvlviv@gmail.com>
 
-	* test/ruby/test_file.rb: new file.  only asserts unlink-before-close
-	  behaviour now.
+	* re.c (rb_reg_initialize_m): [DOC] fix missing right bracket.
+	  [Fix GH-1243]
 
-	* test/soap/marshal/test_digraph.rb: should close before unlink.
-	  unlink-before-close pattern is not needed here.
+Thu Feb 11 14:57:58 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sat Sep 27 03:32:37 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* configure.in (RUBY_CHECK_SIZEOF, RUBY_DEFINT): fix for types
+	  which are conditionally available depending on architectures
+	  when universal binary, e.g., __int128.
 
-	* test/soap/*, test/wsdl/*, test/xsd/*: move TestCase classes into
-	  each module namespace.  TestMarshal in
-	  test/soap/marshal/test_marshal.rb crashed with
-	  test/ruby/test_marshal.rb.
+Thu Feb 11 06:26:18 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Sat Sep 27 01:30:59 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* configure.in (RUBY_DEFINT): use Parameter Expansion.
 
-	* ext/socket/socket.c (ruby_connect): on win32, type of the 4th
-	  argument of getsockopt is char *.
+Thu Feb 11 05:33:24 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Fri Sep 26 18:35:40 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* configure.in (int128_t): don't check HAVE_XXX (for example
+	  HAVE___INT128) because RUBY_CHECK_SIZEOF() don't define it for
+	  config.h and use of $ac_cv_sizeof___int128 alternates the check.
+	  (and don't need to define because users shouldn't know that)
 
-	* lib/resolv-replace.rb: 1.8 compliance.  [ruby-talk:82946]
+Wed Feb 10 12:03:41 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Sep 26 17:39:27 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* configure.in (ARFLAGS): check if deterministic mode flag is
+	  effective, which is on by default on Ubuntu.
 
-	* test/ruby/test_marshal.rb: add test for ruby's objects.
+Tue Feb  9 16:36:23 2016  Naotoshi Seo  <sonots@gmail.com>
 
-Fri Sep 26 09:52:44 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/logger.rb: Remove block from Logger.add as it's not needed
+	  patch provided by Daniel Lobato Garcia [fix GH-1240] [Bug #12054]
 
-	* defines.h (flush_register_windows): use volatile only for gcc on
-	  Solaris.  [ruby-dev:21403]
+Tue Feb  9 14:32:23 2016  Zachary Scott  <zzak@ruby-lang.org>
 
-	* lib/mkmf.rb (xsystem): use system directly to honor shell meta
-	  charaters.
+	* ext/zlib/zlib.c: Document mtime header behavior with patch by @schneems
+	  Fixes [GH-1129]: https://github.com/ruby/ruby/pull/1129
 
-Fri Sep 26 00:10:13 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Tue Feb  9 13:52:49 2016  Zachary Scott  <zzak@ruby-lang.org>
 
-	* lib/README: updated.
+	* re.c: Remove deprecated kcode argument from Regexp.new and compile
+	  patch provided by Dylan Pulliam [Bug #11495]
 
-Thu Sep 25 17:48:10 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+Mon Feb  8 21:26:19 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/openssl/ossl.c (ossl_buf2str): fix type of 1st argument for
-	  rb_protect.
+	* enc/unicode/case-folding.rb, enc/unicode/casefold.h: Flags for
+	  upper/lower conversion added (titlecase and SpecialCasing still missing)
+	  (with Kimihito Matsui)
 
-	* ext/openssl/ossl_hmac.c (ossl_hmac_digest): should return meaningful
-	  value.
+Mon Feb  8 20:43:57 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Thu Sep 25 09:00:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
+	* string.c, enc/unicode.c: Disassociating ONIGENC_CASE_FOLD flag from
+	  ONIGENC_CASE_DOWNCASE.
+	  (with Kimihito Matsui)
 
-	* lib/ostruct.rb: Added OpenStruct#==.
+Mon Feb  8 13:00:17 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* test/ostruct/test_ostruct.rb: Added.
+	* enc/unicode.c: Shortened macros for enc/unicode/casefold.h to
+	  single-letter; use flags in casefold.h for logic.
 
-Thu Sep 25 07:55:26 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* enc/unicode/case-folding.rb: Added flag for case folding.
+	  Changed parameter passing.
 
-	* ext/win32ole/win32ole.c, ext/openssl/ossl_pkey_dsa.c,
-	  ext/openssl/ossl_pkey_rsa.c, ext/bigdecimal/bigdecimal.h: must
-	  not use C++ or C99 style comment yet.  (ruby-bugs:PR#1184)
+	* enc/unicode/casefold.h: New flags added.
+	  (with Kimihito Matsui)
 
-Thu Sep 25 00:23:22 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+Mon Feb  8 10:30:10 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* MANIFEST: add SOAP4R.
+	* ruby.c (feature_option): raise a runtime error if ambiguous
+	  feature name is given, in the future.  [Bug #12050]
 
-Thu Sep 25 00:13:15 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Mon Feb  8 09:43:57 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* lib/soap/* (29 files): SOAP4R added.
+	* common.mk: Removed enc/unicode/casefold.h from automatic build because
+	  some CI systems don't have gperf. Creation of enc/unicode/casefold.h
+	  is now possible with make unicode-up. This is intended as a temporary measure.
 
-	* lib/wsdl/* (42 files): WSDL4R added.
+Sun Feb  7 22:10:08 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* lib/xsd/* (12 files): XSD4R added.
+	* common.mk: Added two more precondition files for enc/unicode/casefold.h
 
-	* test/soap/* (16 files): added.
+	* enc/unicode.c: Added shortening macros for enc/unicode/casefold.h
 
-	* test/wsdl/* (2 files): added.
+	* enc/unicode/case-folding.rb: Fixed file encoding for CaseFolding.txt
+	  to ASCII-8BIT (should fix some ci errors). Clarified usage. Created
+	  class MapItem. Partially implemented class CaseMapping.
+	  (with Kimihito Matsui)
 
-	* test/xsd/* (3 files): added.
+Sun Feb  7 14:12:32 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* sample/soap/* (27 files): added.
+	* enc/unicode/case-folding.rb: Fixing parameter passing.
+	  (with Kimihito Matsui)
 
-	* sample/wsdl/* (13 files): added.
+Sun Feb  7 11:44:03 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Wed Sep 24 02:08:11 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* enc/unicode/case-folding.rb: New classes CaseMapping/CaseMappingDummy
+	  to pass as parameters; not yet implemented or used.
+	  (with Kimihito Matsui)
 
-	* lib/webrick/httpservlet/cgihandler.rb: conform to mswin32.
-	  [ruby-talk:82735], [ruby-talk:82748], [ruby-talk:82818]
+Sun Feb  7 11:16:00 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Tue Sep 23 23:10:16 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* common.mk: using new option in recipe for enc/unicode/casefold.h
 
-	* lib/logger.rb: add Logger#<<(msg) for writing msg without any
-	  formatting.
+	* enc/unicode/case-folding.rb: Correctly specify argument to new option.
+	  (with Kimihito Matsui)
 
-	* test/logger/test_logger.rb: ditto.
+Sun Feb  7 10:43:27 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Tue Sep 23 20:47:51 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	(this commit message applies to the previous commit)
+	* common.mk: explicit recipe for enc/unicode/casefold.h
 
-	* error.c (rb_warn_m): should not warn if -W0 is specified.
-	  [ruby-talk:82675]
+	* enc/unicode/case-folding.rb: Adding -m option to prepare for using
+	  multiple data files.
+	  (with Kimihito Matsui)
 
-Mon Sep 22 21:28:57 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+Sat Feb  6 22:30:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* MANIFEST: updated.
+	* lib/cgi/util.rb (escapeHTML, unescapeHTML): consider
+	  ASCII-incompatible encodings.  [Fix GH-1239]
 
-Mon Sep 22 19:22:26 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Sat Feb  6 15:18:28 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* configure.in (AC_CHECK_FUNCS): add setuid and setgid.
+	* test/ruby/enc/test_regex_casefold.rb: Added data-based testing for
+	  String#downcase :fold.
 
-Mon Sep 22 12:34:55 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* enc/unicode.c: Fixed a range error (lowest non-ASCII character affected
+	  by case operations is U+00B5, MICRO SIGN)
 
-	* util.c (ruby_strtod): skip preceding zeros before counting
-	  digits in the mantissa. (ruby-bugs:PR#1181)
+	* test/ruby/enc/test_case_mapping.rb: Explicit test for case folding of
+	  MICRO SIGN to Greek mu.
+	  (with Kimihito Matsui)
 
-Sun Sep 21 04:12:36 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Sat Feb  6 14:51:23 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/openssl/ossl_ocsp.c (ossl_ocspreq_initialize): the argument
-	  should be a String.
+	* test/ruby/enc/test_regex_casefold.rb: Tests for three case folding
+	  primitives (mbc_case_fold, get_case_fold_codes_by_str,
+	  apply_all_case_fold) in the various encodings. Currently only known
+	  good encodings are tested to avoid test failures. For bug hunting,
+	  start by adding more encodings with
+	  generate_test_casefold encoding
+	  (with Kimihito Matsui)
 
-	* ext/openssl/ossl_ocsp.c (ossl_ocspres_initialize): ditt.
+Sat Feb  6 14:37:16 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/openssl/ossl_x509attr.c (ossl_x509attr_initialize): ditto.
+	* enc/unicode.c, test/ruby/enc/test_case_mapping.rb: Implemented :fold
+	  option for String#downcase by using case folding data from
+	  regular expression engine, and added a few simple tests.
+	  (with Kimihito Matsui)
 
-	* ext/openssl/ossl_x509ext.c (ossl_x509ext_initialize): ditto.
+Fri Feb  5 20:08:59 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/openssl/ossl_x509ext.c (ossl_x509ext_set_value): ditto.
+	* test/ruby/enc/test_case_mapping.rb: added tests for :ascii option.
+	  (with Kimihito Matsui)
 
-Sat Sep 20 11:49:05 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Fri Feb  5 12:22:20 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/logger.rb: typo fixed.
+	* insns.def (opt_mult): Use int128_t for overflow detection.
 
-	* test/logger/test_logger.rb: new file.
+	* bignum.c (rb_uint128t2big): added for opt_mult.
 
-Fri Sep 19 11:39:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
+	* bignum.c (rb_uint128t2big): added for rb_uint128t2big..
 
-	* test/testunit/*: Added.
+	* configure.in: define int128_t, uint128_t and related MACROs.
+	  Initially introduced by r41379 but reverted by r50749.
 
-	* lib/test/unit.rb: Documentation update.
+Thu Feb  4 21:05:17 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* lib/test/unit/ui/console/testrunner.rb (TestRunner#initialize):
-	  Ditto.
+	* enc/unicode.c: Activated :ascii flag for ASCII-only case conversion
+	  (with Kimihito Matsui)
 
-	* lib/test/unit.rb: Factored out an ObjectSpace collector.
+Thu Feb  4 17:38:01 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/test/unit/collector/objectspace.rb: Ditto.
+	* re.c (reg_set_source): make source string frozen without
+	  copying.
 
-	* sample/testunit/*: Added.
-
-Fri Sep 19 01:00:48 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/log.rb (BasicLog#log): get rid of as ineffectual
-	  condition.
-
-	* lib/webrick/log.rb (BasicLog#format): add "\n" to message.
-
-Thu Sep 18 22:43:20 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (proc_invoke): should push PROT_PCALL tag for orphans.
-
-	* eval.c (proc_invoke): should update "result" for orphans.
-
-Thu Sep 18 20:33:03 2003  Tietew  <tietew-ml-ruby-list@tietew.net>
-
-	* parse.y (str_xquote): do not prepend escapes in
-	  backqoute literals.  [ruby-list:38409]
-
-Thu Sep 18 20:30:17 2003  Tanaka Akira  <akr@m17n.org>
-
-	* lib/pathname.rb: update document.
-
-Thu Sep 18 15:27:05 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* lib/logger.rb: new file.  Logger, formerly called devel-logger or
-	  Devel::Logger.
-
-	* sample/logger/*: new file.  samples of logger.rb.
-
-Wed Sep 17 23:41:45 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (localjump_destination): should not raise ThreadError
-	  exception for "break". [ruby-dev:21348]
-
-	* eval.c (proc_invoke): use result instead of prot_tag->retval.
-	  retval is no longer propagated to the ancestors.
-
-Wed Sep 17 20:34:00 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (tokadd_string, parse_string, yylex): escaped terminator
-	  is now interpreted as is.  [ruby-talk:82206]
-
-Wed Sep 17 18:52:36 2003  Minero Aoki  <aamine@loveruby.net>
-
-	* test/fileutils/fileassertions.rb: new file.
-
-	* test/fileutils/test_fileutils.rb: new file.
-
-	* test/fileutils/test_nowrite.rb: new file.
-
-Wed Sep 17 18:51:02 2003  Minero Aoki  <aamine@loveruby.net>
-
-	* test/strscan/test_stringscanner.rb: require test/unit.
-
-Wed Sep 17 18:35:34 2003  Minero Aoki  <aamine@loveruby.net>
-
-	* test/strscan/test_stringscanner.rb: new file.
-
-Wed Sep 17 18:03:30 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl: all files are reviewed to simplify and avoid memory leak.
-
-	* ext/openssl/extconf.rb: add check for assert.h.
-
-	* ext/openssl/ossl.c (ossl_buf2str): new function to convert
-	  C buffer to String and free buffer.
-
-	* ext/openssl/ossl.c (ossl_x509_ary2sk): new function to convert
-	  Array of OpenSSL::X509 to STACK_OF(X509) with exception safe.
-
-	* ext/openssl/ossl.c (ossl_to_der, ossl_to_der_if_possible): new
-	  functions to convert object to DER string.
-
-	* ext/openssl/ossl.h: ditto.
-
-	* ext/openssl/ossl_bio.c (ossl_membio2str): new function to convert
-	  BIO to String object and free BIO.
-
-	* ext/openssl/ossl_bio.h: ditto.
-
-	* ext/openssl/ossl_pkcs7.c (ossl_pkcs7_to_der): add for "to_der".
-
-	* ext/openssl/ossl_x509name.c (ossl_x509name_to_der): ditto.
-
-	* ext/openssl/ossl_x509ext.c (ossl_x509ext_to_der): ditto.
-
-	* ext/openssl/ossl_x509ext.c (create_ext_from_array): removed
-	  and reimplement in openssl/x509.rb.
-
-	* ext/openssl/ossl_x509attr.c: reimplemented and disable some
-	  method temporarily. this class doesn't work fine without ASN.1
-	  data support;-) I'll rewrite in near future.
-
-	* ext/openssl/lib/openssl/x509.c (X509::Attribute): get rid off
-	  unused code.
-
-	* ext/openssl/lib/openssl/x509.c (X509::ExtensionFactory): refine all.
-
-Tue Sep 16 22:25:06 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* test/csv/test_csv.rb: add negative tests of row_sep.
-
-Tue Sep 16 18:02:36 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* regex.c (re_compile_pattern): should not translate character
-	  class range edge. [ruby-list:38393]
-
-Tue Sep 16 16:47:56 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
-
-	* MANIFEST: add test/csv/mac.csv.
-
-	* win32/Makefile.sub, bcc32/Makefile.sub (test): add phony NUL target.
-
-Mon Sep 15 19:02:52 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
-
-	* lib/csv.rb: add extra pamameter to specify row(record) separater
-	  character.  To parse Mac's CR separated CSV, do like this.
-	    CSV.open("mac.csv", "r", ?,, ?\r) { |row| p row.to_a }
-	  The 3rd parameter in this example ?, is for column separater and the
-	  4th ?\r is for row separater.  Row separater is nil by default.  Nil
-	  separater means "\r\n" or "\n".
-
-	* test/csv/test_csv.rb: add tests for above feature.
-
-	* test/csv/mac.csv: added.  Sample CR separated CSV file.
-
-Fri Sep 12 22:41:48 2003  Michal Rokos  <m.rokos@sh.cvut.cz>
-
-	* ext/openssl/ossl.c: move ASN.1 stuff to ossl_asn1.[ch]
-
-	* ext/openssl/ossl.c: move BIO stuff to ossl_bio.[ch]
-
-	* ext/openssl/ossl_asn1.[ch]: new files
-
-	* ext/openssl/ossl_bio.[ch]: new files
-
-Fri Sep 12 12:30:41 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* intern.h (rb_disable_super, rb_enable_super): replace with dummy
-	  expressions instead of prototypes.  the functions remain yet for
-	  binary compatibility.  [ruby-talk:81758]
-
-Fri Sep 12 12:09:54 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* bignum.c (rb_big_and): convert argument using 'to_int'.
-
-	* bignum.c (rb_big_or): ditto.
-
-	* bignum.c (rb_big_xor): ditto.
-
-Fri Sep 12 07:06:14 2003  David Black  <dblack@superlink.net>
-
-	* lib/scanf.rb: Took out useless @matched_item variable; some small
-	  refactoring.
-
-Thu Sep 11 08:43:44 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_f_require): allow "require" on $SAFE>0, if feature
-	  name is not tainted.
-
-	* lib/rexml/parsers/baseparser.rb (REXML::Parsers::BaseParser::stream):
-	  Supports StringIO.
-
-Wed Sep 10 22:47:30 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl.h: add a workaround for win32 platform.
-	  libeay32.dll doesn't export functions defined in conf_api.h.
-
-	* ext/openssl/ossl_config.c (ossl_config_initialize): ditto.
-
-	* ext/openssl/ossl_config.c (ossl_config_add_value): ditto.
-
-	* ext/openssl/ossl_config.c (set_conf_section_i): should check
-	  if the argument is Array.
-
-Wed Sep 10 22:41:54 2003  Tietew  <tietew@tietew.net>
-
-	* eval.c (win32_get_exception_list): avoid VC7 warning.
-	  [ruby-win32:577]
-
-Tue Sep  9 10:39:51 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (struct tag): dst should be VALUE.
-
-Tue Sep  9 10:39:51 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (localjump_destination): stop at the scope where the current
-	  block was created.  [ruby-dev:21353]
-
-Tue Sep  9 05:17:04 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl_config.rb: avoid compile error in OpenSSL-0.9.6.
-
-Tue Sep  9 02:41:35 2003  Michal Rokos  <m.rokos@sh.cvut.cz>
-
-	* ext/openssl/ossl_config.c: Refine compatibility.
-
-Tue Sep  9 01:50:45 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* lib/webrick/httpserver.rb (HTTPServer#access_log): add "\n" to
-	  the message.
-
-	* lib/webrick/log.rb (BasicLog#log): add "\n" only if needed.
-
-Mon Sep  8 22:15:33 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
-
-	* ext/tk/lib/multi-tk.rb: modify security check at creating
-	  a new interpreter
-
-Mon Sep  8 20:00:12 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse.rb, lib/optparse/version.rb: search also all
-	  capital versions.
-
-Mon Sep  8 19:26:33 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
-
-	* ext/openssl/ossl.h: include openssl/conf.h and openssl/conf_api.h.
-
-	* ext/openssl/ossl_config.c: refine all with backward compatibility.
-
-	* ext/openssl/ossl_config.h: export GetConfigPtr() and DupConfigPtr().
-
-	* ext/openssl/ossl_x509.c: added new constants under X509 module.
-	  DEFAULT_CERT_AREA, DEFAULT_CERT_DIR, DEFAULT_CERT_FILE,
-	  DEFAULT_CERT_DIR_ENV, DEFAULT_CERT_FILE_ENV and DEFAULT_PRIVATE_DIR.
+	* re.c (rb_reg_initialize_m): refactor initialization with
+	  encoding.
 
-	* ext/openssl/ossl_x509ext.c (ossl_x509extfactory_free): don't free
-	  the members of the struct. it's left to GC.
+Thu Feb  4 15:35:29 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/openssl/ossl_x509ext.c (ossl_x509_set_config): add for config=.
+	* string.c (rb_fstring_enc_new, rb_fstring_enc_cstr): functions to
+	  make fstring with encoding.
 
-	* ext/openssl/ossl_x509ext.c (Xossl_x509extfactory_initialize):
-	  add attr readers: issuer_certificate, subject_certificate,
-	  subject_request, crl and config.
+Thu Feb  4 14:42:29 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Mon Sep  8 18:26:41 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* common.mk: Added Unicode data file SpecialCasing.txt to be additionally
+	  downloaded (with Kimihito Matsui)
 
-	* lib/webrick/accesslog.rb (AccessLog::setup_params): use req.port
-	  instead of config[:Port] or req.request_uri.port.
+Thu Feb  4 12:39:08 2016  joker1007  <kakyoin.hierophant@gmail.com>
 
-	* lib/webrick/httprequest.rb (HTTPRequest#meta_vars): ditto.
+	* cgi/escape/escape.c: Optimize CGI.escape performance by C ext
+	  for ASCII-compatible encodings.  [Fix GH-1238]
 
-	* lib/webrick/httpservlet/filehandler.rb (FileHandler#dir_list): ditto.
+Thu Feb  4 11:53:56 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* lib/webrick/config.rb: :Listen option never be used.
+	* common.mk: Introduce two variables (UNICODE_DATA_DIR and
+	  UNICODE_SRC_DATA_DIR) to eliminate repetitions.
 
-	* lib/webrick/server.rb (GenericServer#initialize): don't use :Listen
-	  option and add warning message.
+Wed Feb  3 12:13:20 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* lib/webrick/log.rb (BasicLog#<<): shortcut of log(INFO, ...).
+	* string.c (str_new_frozen): if the given string is embeddedable
+	  but not embedded, embed a new copied string. [Bug #11946]
 
-	* lib/webrick/httpserver.rb (HTTPServer#accesslog): use << for logging.
+Wed Feb  3 08:25:38 2016  boshan  <boshan@subsplash.com>
 
-Sun Sep  7 16:08:28 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* ext/openssl/ossl_pkey.c (Init_ossl_pkey): [DOC] Fix typo
+	  "encrypted" to "decrypted".  [Fix GH-1235]
 
-	* ext/tcltklib/tcltklib.c (lib_mainloop_core): fixed signal-trap bug
+Wed Feb  3 08:21:32 2016  Seiei Miyagi  <hanachin@gmail.com>
 
-	* ext/tk/lib/*.rb : Ruby/Tk works at $SAFE == 4
+	* ext/ripper/lib/ripper/lexer.rb (on_heredoc_dedent): Fix
+	  Ripper.lex error in dedenting squiggly heredoc.  heredoc tree is
+	  also an array of Elem in the outer tree.  [Fix GH-1234]
 
-Sat Sep  6 02:26:34 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Wed Feb  3 02:33:39 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* test/ruby/test_*.rb: assert_same, assert_match, and so on.
+	* re.c (rb_reg_prepare_enc): use already compiled US-ASCII regexp
+	  if given string is ASCII only.
+	  121.2s to 113.9s on my x86_64-freebsd10.2 Intel Core i5 661
 
-Sat Sep  6 18:45:46 2003  Mauricio Fernandez  <batsman.geo@yahoo.com>
+Tue Feb  2 13:02:03 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* parse.y (assignable): call rb_compile_error(), not rb_bug().
-	  [ruby-core:01523]
+	* re.c: Introduce RREGEXP_PTR.
+	  patch by dbussink.
+	  partially merge https://github.com/ruby/ruby/pull/497
 
-Sat Sep  6 17:40:41 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* include/ruby/ruby.h: ditto.
 
-	* ext/openssl/ruby_missing.c: rid of unnecessary backward
-	  compatibility stuff. and remove DEFINE_ALLOC_WRAPPER from
-	  all sources.
+	* gc.c: ditto.
 
-	* ext/openssl/ossl_x509ext.c (X509::Extension.new): new method.
+	* ext/strscan/strscan.c: ditto.
 
-	* ext/openssl/ossl_x509ext.c (X509::Extension#oid=): new method.
+	* parse.y: ditto.
 
-	* ext/openssl/ossl_x509ext.c (X509::Extension#value=): new method.
+	* string.c: ditto.
 
-	* ext/openssl/ossl_x509ext.c (X509::Extension#critical=): new method.
+Tue Feb  2 09:08:27 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Sat Sep  6 01:23:22 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* lib/rubygems/specification.rb: `coding` is effective only first
+	  line except shebang.
 
-	* win32/win32.c (CreateChild): need to quote cmd if RUBYSHELL is set.
+	* lib/rubygems/package.rb, lib/rubygems/package/*: ditto.
 
-	* win32/win32.c (CreateChild): fix condition about whether to call
-	  shell or not.
+Mon Feb  1 21:41:58 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Sat Sep  6 00:36:20 2003  Nobuyoshi Nakada  <nobu.nokada@softhome.net>
+	* lib/rubygems.rb, lib/rubygems/*, test/rubygems/*: Update rubygems-2.5.2.
+	  It supports to enable frozen string literal and add `--norc` option for
+	  disable to `.gemrc` configuration.
+	  See 2.5.2 release notes for other fixes and enhancements.
+	  https://github.com/rubygems/rubygems/blob/a8aa3bac723f045c52471c7b9328310a048561e0/History.txt#L3
 
-	* Makefile.in (test): phony target.
+Sun Jan 31 12:33:13 2016  Dan Kreiger  <dan@dankreiger.com>
 
-	* lib/mkmf.rb (have_library, find_library): configure by library
-	  name.
+	* test/drb/ut_large.rb (multiply, avg, median): add additional
+	  math operations to DRbLarge.  [Fix GH-1086]
 
-	* lib/optparse.rb (OptionParser#order, #permute, #parse): allow an
-	  array as argument.
+Sun Jan 31 12:19:15 2016  Kuniaki IGARASHI  <igaiga@gmail.com>
 
-	* test/ruby/test_*.rb: moved invariants to left side in
-	  assert_equal, and use assert_nil, assert_raises and so on.
+	* test/ruby/test_file_exhaustive.rb (test_lstat): Add lacking test
+	  for File#lstat.  [Fix GH-1231]
 
-	* win32/win32.c (isInternalCmd): distinguish command.com and
-	  cmd.exe.
+Sun Jan 31 12:15:33 2016  Prayag Verma  <prayag.verma@gmail.com>
 
-	* win32/win32.c (make_cmdvector): a character just after wildcard
-	  was ignored.  [ruby-core:01518]
+	* doc/standard_library.rdoc: fix typo  [Fix GH-1230]
+	  Spelling mistakes -
+	  outputing > outputting
+	  publich > publish
 
-Fri Sep  5 20:27:08 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Sat Jan 30 15:18:07 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/ruby/test_*.rb: replace 'assert(a == b)' with assert_equal(a, b)'
+	* vm_eval.c (rb_check_funcall_with_hook): also should call the
+	  given hook before returning Qundef when overridden respond_to?
+	  method returned false.  [ruby-core:73556] [Bug #12030]
 
-Fri Sep  5 18:00:51 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Fri Jan 29 17:40:07 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/openssl/lib/openssl/x509.rb: new method X509::Name::parse.
+	* win32/file.c (rb_readlink): drop garbage after the substitute
+	  name, as rb_w32_read_reparse_point returns the expected buffer
+	  size but "\??\" prefix is dropped from the result.
 
-	* ext/openssl/ossl_digest.c: add ossl_digest_new().
+	* win32/win32.c (w32_readlink): ditto, including NUL-terminator.
 
-	* ext/openssl/ossl_digest.h: ditto.
+Fri Jan 29 17:07:27 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* ext/openssl/ossl_cipher.c: add ossl_cipher_new().
+	* win32/win32.c (fileattr_to_unixmode, rb_w32_reparse_symlink_p): volume
+	  mount point should be treated as directory, not symlink.
+	  [ruby-core:72483] [Bug #11874]
 
-	* ext/openssl/ossl_cipher.h: ditto.
+	* win32/win32.c (rb_w32_read_reparse_point): check the reparse point is
+	  a volume mount point or not.
 
-Fri Sep  5 15:32:04 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* win32/file.c (rb_readlink): follow above change (but this pass won't
+	  be used).
 
-	* misc/ruby-mode.el (ruby-font-lock-maybe-here-docs): should not
-	  search delimiter forward if found in backward.
+Fri Jan 29 16:17:07 2016  Lucas Buchala  <lucasbuchala@gmail.com>
 
-Fri Sep  5 13:32:48 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* enum.c (enum_take_while, enum_drop_while): rename block
+	  parameter to obj, since they are generic objects.  [Fix GH-1226]
 
-	* test/runner.rb: arguments should be keys.
+Fri Jan 29 14:15:26 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Sep  5 12:09:55 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+	* lib/erb.rb (ERB::Compiler#detect_magic_comment): allow
+	  frozen-string-literal in comment as well as encoding.
 
-	* test/ruby/test_system.rb (test_system): check existence of ruby
-	  interpreter.
+	* lib/erb.rb (ERB#def_method): insert def line just before the
+	  first non-comment and non-empty line, not to leave duplicated
+	  and stale magic comments.
 
-Fri Sep  5 11:32:17 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jan 29 11:13:33 2016  Jeremy Evans  <code@jeremyevans.net>
 
-	* lib/optparse.rb (--version): fix assignment/reference order.
+	* lib/erb.rb (ERB#set_eoutvar): explicitly make mutable string as
+	  a buffer to make ERB work with --enable-frozen-string-literal.
+	  [ruby-core:73561] [Bug #12031]
 
-	* lib/optparse.rb (OptionParser#help): new; OptionParser#to_s may
-	  be deprecated in future.
+Fri Jan 29 10:44:56 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* lib/optparse/version.rb (OptionParser#show_version): hide Object.
+	* lib/net/http/header.rb: Warn nil variable on HTTP Header.
+	  It caused to NoMethodError. [fix GH-952][fix GH-641] Patch by @teosz
+	* test/net/http/test_httpheader.rb: Added test for nil HTTP Header.
 
-	* test/runner.rb: fix optparse usage.
+Thu Jan 28 17:31:43 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test/runner.rb: glob all testsuits if no tests given.
+	* ext/socket/socket.c (sock_gethostname): support unlimited size
+	  hostname.
 
-Fri Sep  5 10:42:58 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Wed Jan 27 21:03:45 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* test/runner.rb: added.  gets testcases from command line and runs it.
+	* test/-ext-/string/test_capacity.rb: Added missing library.
 
-	* test/ruby/test_gc.rb: remove useless part which was for dumping test
-	  result.
+Wed Jan 27 18:53:40 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Fri Sep  5 09:28:59 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* enc/unicode.c: Fixed bit mask in macro OnigCodePointCount
 
-	* test/ruby/test_gc.rb: added.  splitter.rb which I made to split
-	  sample/test.rb into test/ruby/test_* kindly removed GC test (the
-	  last section in the original test) to reduce things to be worried.
+Wed Jan 27 17:54:42 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Fri Sep  5 03:00:04 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* enc/unicode.c: Protect code point count by macro, in order to
+	  be able to use the remaining bits for flags.
+	  (with Kimihito Matsui)
 
-	* test/ruby/test_iterator.rb (test_block_in_arg): add no block
-	  given tests.
+Wed Jan 27 16:34:35 2016  boshan  <boshan@subsplash.com>
 
-	* test/ruby/test_iterator.rb (test_ljump): uncomment LocalJumpError
-	  test.
+	* lib/tempfile.rb (Tempfile#initialize): [DOC] the first parameter
+	  `basename` is optional and defaulted to an empty string since
+	  [GH-523].  [Fix GH-1225]
 
-Fri Sep  5 01:10:11 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Wed Jan 27 16:25:54 2016  Koichi ITO  <koic.ito@gmail.com>
 
-	* test/ruby: tests for ruby itself.
+	* array.c (rb_ary_dig): [DOC] fix the exception class to be raised
+	  when intermediate object does not have dig method.  TypeError
+	  will be raised now.  [Fix GH-1224]
 
-	* test/ruby/test_*.rb: split sample/test.rb into 28 test/unit testcases.
-	  some tests could not be translates...  search '!!' mark to see it.
+Tue Jan 26 19:36:15 2016  Aggelos Avgerinos  <evaggelos.avgerinos@gmail.com>
 
-	* test/csv/test_csv.rb: should require 'csv', not '../lib/csv'.  test
-	  runner should set load path correctly.
+	* array.c (permute0, rpermute0): [DOC] Substitute indexes ->
+	  indices in documentation for consistency.  [Fix GH-1222]
 
-Fri Sep  5 01:03:59 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Tue Jan 26 15:21:37 2016  Eric Wong  <e@80x24.org>
 
-	* test/csv/test_csv.rb: close opened files for CSV::IOBuf explicitly.
-	  opened file cannot be removed under win32 box.
+	* compile.c (caller_location): use rb_fstring_cstr for "<compiled>"
+	  (it is converted to fstring anyways inside rb_iseq_new_with_opt)
+	* iseq.c (iseqw_s_compile): ditto
+	* iseq.c (rb_iseq_new_main): use rb_fstring_cstr for "<main>"
+	* vm.c (Init_VM): ditto, share with with above
+	* iseq.c (iseqw_s_compile_file): rb_fstring before rb_io_t->pathv
+	  share "<main>" with above
+	* vm.c (rb_binding_add_dynavars): fstring "<temp>" immediately
 
-Thu Sep  4 23:59:40 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Jan 26 15:14:01 2016  Kazuki Yamaguchi  <k@rhe.jp>
 
-	* parse.y (tokadd_string): newlines have no special meanings in
-	  %w/%W, otherwise they are ignored only when interpolation is
-	  enabled.  [ruby-dev:21325]
+	* compile.c (iseq_peephole_optimize): don't apply tailcall
+	  optimization to send/invokesuper instructions with blockiseq.
+	  This is a follow-up to the changes in r51903; blockiseq is now
+	  the third operand of send/invokesuper instructions.
+	  [ruby-core:73413] [Bug #12018]
 
-Thu Sep  4 19:38:25 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Tue Jan 26 14:26:46 2016  Eric Wong  <e@80x24.org>
 
-	* ext/io/wait/.cvsignore: added.
+	* signal.c (sig_list): use fstring for hash key
+	* test/ruby/test_signal.rb (test_signal_list_dedupe_keys): added
 
-	* ext/openssl/.cvsignore: added.
+Tue Jan 26 13:08:34 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Sep  4 19:28:24 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* signal.c (rb_f_kill): should immediately deliver reserved
+	  signals SIGILL and SIGFPE, not only SIGSEGV and SIGBUS.
 
-	* sample/openssl: added.  Sample of standard distribution library
-	  should be locate in sample/{module_name}/*.
+Tue Jan 26 07:57:28 2016  Joseph Tibbertsma  <josephtibbertsma@gmail.com>
 
-	* ext/openssl/sample/*: removed.  move to sample/openssl/*.
+	* gc.c (RVALUE_PAGE_WB_UNPROTECTED): fix a typo of argument name.
+	  [Fix GH-1221]
 
-Thu Sep  4 18:02:15 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Mon Jan 25 17:26:54 2016  Eric Wong  <e@80x24.org>
 
-	* test/csv/test_csv.rb: use remove_const to reduce warnings.  use
-	  Dir.tmpdir to locate working files.
+	* ruby_assert.h (RUBY_ASSERT_WHEN): fix reference to macro name
+	* vm_core.h: include ruby_assert.h before using
+	  [ruby-core:73371]
 
-Thu Sep  4 17:41:31 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Jan 25 15:55:30 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* misc/ruby-mode.el (ruby-here-doc-beg-re): underscore also is
-	  valid delimiter.
+	* symbol.c (sym_check_asciionly): more informative error message
+	  with the encoding name and the inspected content.
+	  [ruby-core:73398] [Feature #12016]
 
-	* misc/ruby-mode.el (ruby-here-doc-end-match): must quote
-	  arbitrary string to use as regexp.
+Mon Jan 25 09:38:26 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* misc/ruby-mode.el (ruby-font-lock-maybe-here-docs): must not
-	  call `ruby-here-doc-end-match' unless `ruby-here-doc-beg-re'
-	  matched.
+	* test/ruby/test_string.rb: added testcase for next!, succ and succ!
+	  [fix GH-1213] Patch by @K0mAtoru
 
-Thu Sep  4 15:40:07 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Mon Jan 25 09:32:25 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* test/csv/test_csv.rb: run on test/unit original layer.
+	* lib/webrick/httpservlet/filehandler.rb: fix documentation for namespace.
+	  [fix GH-1219][ci skip] Patch by @leafac
 
-Thu Sep  4 12:54:50 2003  why the lucky stiff  <why@ruby-lang.org>
+Sun Jan 24 19:34:23 2016  Eric Wong  <e@80x24.org>
 
-	* ext/syck/token.c: headerless documents with root-level spacing now
-	  honored.
+	* vm_insnhelper.c (vm_check_if_namespace): tiny size reduction
 
-Thu Sep  4 00:06:14 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Sun Jan 24 18:12:36 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* eval.c (mark_frame_adj): need to adjust argv pointer if using
-	  system's alloca. [ruby-core:01503]
+	* common.mk: Simplifying Unicode data file download logic to make
+	  it more reliable (including additional fix not in r53633) [Bug #12007]
 
-Wed Sep  3 21:33:20 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+Sun Jan 24 16:54:11 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* test: add test directory.  Test::Unit aware testcases and needed
-	  files should be located in this directory.  dir/file name convention;
-	    test/{module_name}/test_{testcase_name}.rb
-	    test/{module_name}/{needed_files}
-	  someday, someone will write testrunner which searches test_*.rb and
-	  run testcases automatically.
+	* ext/io/wait/wait.c (io_wait_readwrite): [EXPERIMENTAL] allow to
+	  wait for multiple modes, readable and writable, at once.  the
+	  arguments may change in the future.  [Feature #12013]
 
-	* test/csv/*: add testcase for lib/csv.rb.
+Sat Jan 23 22:30:59 2016  K0mA  <mctj1218@gmail.com>
 
-Wed Sep  3 01:37:09 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* test/ruby/test_array.rb (test_keep_if): Add test for
+	  Array#keep_if separate from Array#select!  [Fix GH-1218]
 
-	* io.c (rb_f_gets): should call next_argv() before type check
-	  current_file. [ruby-list:38336]
+Sat Jan 23 20:54:26 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Tue Sep  2 20:37:15 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* common.mk: revert r53633. It broke rubyci and travis.
+	  https://travis-ci.org/ruby/ruby/builds/104259623
 
-	* ext/openssl/lib/net/protocols.rb (SSLIO#ssl_connect): warning
-	  for skipping server verification.
+Sat Jan 23 20:10:29 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-Tue Sep  2 23:36:57 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* range.c (range_eqq): revert r51585 because rb_call_super() is
+	  called in range_include() and thus r51585 doesn't work when the
+	  receiver Range object consists of non linear objects such as Date
+	  objects.
+	  [ruby-core:72908] [Bug #12003]
 
-	* eval.c (proc_invoke): should retrieve retval when pcall is true.
+Sat Jan 23 18:37:37 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Tue Sep  2 14:09:20 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* ChangeLog: Fixing wrong time on previous commit, and adding
+	  previous commit message to svn [ci skip]
 
-	* ext/socket/extconf.rb: check s6_addr8 in in6_addr (Tru64 UNIX).
-	  the patch is submitted by nmu <nmu@users.sourceforge.jp>.
+Sat Jan 23 18:30:30 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/socket/getaddrinfo.c (getaddrinfo): should use in6_addr8 on
-	  some platforms.
+	* common.mk: Simplifying Unicode data file download logic to make
+	  it more reliable [Bug #12007]
 
-	* ext/socket/getnameinfo.c (getnameinfo): ditto.
+Sat Jan 23 16:29:42 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Tue Sep  2 14:02:19 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+	* tool/downloader.rb: Fixed a logical error, improved documentation
 
-	* ext/tcltklib/tcltklib.c (ip_invoke): fixed bug on passing a exception
+Sat Jan 23 11:42:43 2016  Peter Suschlik  <ps@neopoly.de>
 
-	* ext/tk/lib/{tk.rb, tkcanvas.rb, tkfont.rb, tktext.rb} :
-	  bug fix and improvement of font control
+	* README.md: Use SVG Travis badge over PNG for better quality and
+	  device support.  [Fix GH-1214] [Fix GH-1216]
 
-Tue Sep  2 09:51:36 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sat Jan 23 11:29:16 2016  Pascal Betz  <pascal.betz@simplificator.com>
 
-	* eval.c (rb_eval): should not handle exceptions within rescue
-	  argument.  [ruby-talk:80804]
+	* lib/csv.rb: Update documentation of CSV header converter for
+	  r45498, [GH-575].  [Fix GH-1215]
 
-Tue Sep  2 00:44:37 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Jan 22 17:36:46 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* re.c (rb_memsearch): fix overrun.  [ruby-talk:80759]
+	* vm_core.h (VM_ASSERT): use RUBY_ASSERT instead of rb_bug.
 
-Tue Sep  2 00:41:27 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* error.c (rb_assert_failure): assertion with stack dump.
 
-	* ext/iconv/iconv.c (map_charset): use lower case keys.
+	* ruby_assert.h (RUBY_ASSERT): new header for the assertion.
 
-	* ext/iconv/iconv.c (iconv_fail): just yield error and return the
-	  result if a block is given.
+Fri Jan 22 00:25:57 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* ext/iconv/iconv.c (iconv_convert): yield error and append the
-	  result if a block is given.
+	* regparse.c (fetch_name_with_level): allow non word characters
+	  at the first character.  [Feature #11949]
 
-	* ext/iconv/charset_alias.rb (charset_alias): optional third
-	  argument.
+	* regparse.c (fetch_name): ditto.
 
-	* ext/iconv/charset_alias.rb (charset_alias): use CP932 instead of
-	  SHIFT_JIS on cygwin.
+Thu Jan 21 17:34:01 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Mon Sep  1 18:34:25 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* marshal.c (r_object0): honor Marshal.load post proc
+	  value for TYPE_LINK.  by Hiroshi Nakamura <nahi@ruby-lang.org>
+	  https://github.com/ruby/ruby/pull/1204 fix GH-1204
 
-	* eval.c (rb_eval): make tail recursion in ELSE clause of
-	  RESCUE a jump.
+Thu Jan 21 16:37:50 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Mon Sep  1 18:00:02 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* Makefile.in (update-rubyspec): fix r53208 like r53451.
 
-	* parse.y (aref_args): forgot to call NEW_SPLAT(). reported by
-	  Dave Butcher.
+Wed Jan 20 20:58:25 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* eval.c (Init_Thread): protect thgroup_default.  suggested by Guy
-	  Decoux in [ruby-talk:80623]
+	* common.mk, Makefile.in: update-config_files is only for Unix
+	  platforms.
 
-Mon Sep  1 16:59:10 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jan 20 17:13:39 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* eval.c (rb_thread_switch): add RESTORE_EXIT; exit by another
-	  thread termination.
+	* tool/extlibs.rb: add --cache option to change cache directory.
 
-	* eval.c (rb_thread_start_0): should not error_print() within
-	  terminated thread, because $stderr used by it might be
-	  overriden now.  [ruby-dev:21280]
+Tue Jan 19 17:03:40 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Sun Aug 31 22:46:55 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+	* common.mk: Added Unicode data file CaseFolding.txt to be additionally
+	  downloaded (with Kimihito Matsui)
 
-	* eval.c (TAG_DST()): take no argument.
+Tue Jan 19 10:09:58 2016  Sho Hashimoto  <sho-h@ruby-lang.org>
 
-	* process.c (p_gid_sw_ensure): return VALUE.
+	* lib/shell.rb (Shell.debug_output_exclusive_unlock): remove
+	  because Mutex#exclusive_unlock was already deleted. [fix GH-1185]
 
-Sun Aug 31 22:27:10 2003  Hidetoshi NAGAI  <nagai@dumbo.ai.kyutech.ac.jp>
+Tue Jan 19 09:38:27 2016  Nick Cox  <nick@nickcox.me>
 
-	* process.c (p_gid_sw_ensure): lack of function type
+	* vm_method.c: fix grammar in respond_to? warning.
+	  [fix GH-1047]
 
-Sun Aug 31 12:25:06 2003  Nobuyoshi Nakada  <nobu.nokada@softhome.net>
+Mon Jan 18 14:37:07 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/optparse.rb: --version takes an optional argument; "all" or
-	  a list of package names.
+	* parse.y (parser_here_document): an escaped newline is not an
+	  actual newline, and the rest part should not be dedented.
+	  [ruby-core:72855] [Bug #11989]
 
-Sun Aug 31 10:17:02 2003  Tadayoshi Funaba  <tadf@dotrb.org>
+Mon Jan 18 12:04:34 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* lib/date/format.rb: yyyy/mm is not an acceptable format.
+	* test/ruby/test_string.rb: Added extra testcase for test_rstrip_bang
+	  and test_lstrip_bang. [fix GH-1178] Patch by @Matrixbirds
 
-	* lib/time.rb: follow above.
+Mon Jan 18 11:47:27 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Sat Aug 30 14:25:43 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* string.c: fix a typo. [fix GH-1202][ci skip] Patch by @sunboshan
 
-	* eval.c (rb_iter_break): should not call TAG_JUMP directly.
+Sun Jan 17 21:15:30 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Sat Aug 30 03:58:21 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* configure.in: improve ICC (Intel C Compiler) support.
 
-	* eval.c (struct BLOCK): remove BLOCKTAG, use scope instead.
+	* configure.in (CXX): The name of icc's c++ compiler is `icpc`.
 
-	* eval.c (POP_TAG): no longer propagate retval.  retval is now set
-	  directly by localjump_destination().
+	* configure.in (warnings): Add `-diag-disable=2259` to suppress
+	  noisy warnings: "non-pointer conversion from "..." to "..." may
+	  lose significant bits".
 
-	* eval.c (localjump_destination): new function to cast
-	  return/break local jump.
+	* configure.in (optflags): Add `-fp-model precise` like -fno-fast-math.
 
-	* eval.c (rb_yield_0): stop TAG_RETURN/TAG_BREAK escaping.
+	* lib/mkmf.rb: icc supports -Werror=division-by-zero
+	  and -Werror=deprecated-declarations, but doesn't support
+	  -Wdivision-by-zero and -Wdeprecated-declarations.
 
-Fri Aug 29 22:35:00 2003  Shigeo Kobayashi  <shigek@ruby-lang.org>
+Sun Jan 17 20:40:10 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* bigdecimal.c *.html: The 2nd arg. for add,sub,mult, and div is 0,
-	  then result will be the same as +,-,*,/ respectively.
+	* string.c: Any kind of option is now taking the new code path for
+	  upcase/downcase/capitalize/swapcase. :lithuanian can be used for
+	  testing if no specific option is desired.
+	* test/ruby/enc/test_case_mapping.rb: Adjusted to above.
+	  (with Kimihito Matsui)
 
-Fri Aug 29 17:30:15 2003  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+Sun Jan 17 20:10:10 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* process.c: bug fix
+	* enc/unicode.c: Fixed a logical error and some comments.
+	* test/ruby/enc/test_case_mapping.rb: Made tests more general.
+	  (with Kimihito Matsui)
 
-	* process.c: add rb_secure(2) to methods of Process::{UID,GID,Sys}
+Sun Jan 17 17:41:41 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* process.c: deny handling IDs during evaluating the block given to
-	  the Process::{UID,GID}.switch method
+	* enc/unicode.c: Removed artificial expansion for Turkic,
+	  added hand-coded support for Turkic, fixed logic for swapcase.
+	* string.c: Made use of new case mapping code possible from upcase,
+	  capitalize, and swapcase (with :lithuanian as a guard).
+	* test/ruby/enc/test_case_mapping.rb: Adjusted for above.
+	  (with Kimihito Matsui)
 
-	* ext/tcltklib/tcltklib.c : some methods have no effect if on slave-IP
+Sun Jan 17 15:30:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/tcltklib/tcltklib.c : can create a interpreter without Tk
+	* ext/socket/option.c (sockopt_bool): relax boolean size to be one
+	  too not only sizeof(int).  Winsock getsockopt() returns a single
+	  byte as a boolean socket option.  [ruby-core:72730] [Bug #11958]
 
-	* ext/tcltklib/tcltklib.c : bug fix on handling exceptions
+Sun Jan 17 14:43:01 2016  Kuniaki IGARASHI  <igaiga@gmail.com>
 
-	* ext/tcltklib/MANUAL.euc : modify
+	* test/ruby/test_env.rb: [Fix GH-1201]
+	  * Extract test code for ENV#keep_if from ENV#select_bang
+	  * Add a test case for ENV#select_bang,keep_if
 
-	* ext/tk/lib/tk.rb : freeze some core modules
+Sun Jan 17 14:42:25 2016  Kuniaki IGARASHI  <igaiga@gmail.com>
 
-	* ext/tk/lib/multi-tk.rb : more secure
+	* test/ruby/test_env.rb: [Fix GH-1201]
+	  * Extract test code for ENV#delete_if from ENV#reject_bang
+	  * Add a test case for ENV#reject_bang,delete_if
 
-	* ext/tk/lib/tk.rb: TkVariable.new(array) --> treat the array as the
-	  Tk's list
+Sun Jan 17 14:40:22 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/tk/lib/tk.rb: improve accessibility of TkVariable object
+	* ext/socket/option.c (check_size): extract a macro to check
+	  binary data size, with a consistent message.
 
-	* ext/tk/lib/tk.rb, ext/tk/lib/tkfont.rb, ext/tk/lib/tkcanvas.rb,
-	  ext/tk/lib/tktext.rb : fix bug of font handling
+	* ext/socket/option.c (sockopt_byte): fix error message,
+	  sizeof(int) differs from sizeof(unsigned char) in general.
 
-	* ext/tk/lib/tkfont.rb TkFont.new() accepts compound fonts
+Sat Jan 16 21:16:21 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Aug 28 22:07:12 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* parse.y (xstring): reset heredoc indent after dedenting,
+	  so that following string literal would not be dedented.
+	  [ruby-core:72857] [Bug #11990]
 
-	* variable.c (rb_autoload_load): call const_missing if autoloading
-	  constant is not defined to allow hook.
+Sat Jan 16 17:24:24 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* eval.c (rb_eval): use rb_const_get_from() instead of
-	  rb_const_get_at().
+	* enc/unicode.c: Artificial mapping to test buffer expansion code.
+	* string.c: Fixed buffer expansion logic.
+	* test/ruby/enc/test_case_mapping.rb: Tests for above.
+	  (with Kimihito Matsui)
 
-	* eval.c (is_defined): forgot to check NODE_COLON3.
+Sat Jan 16 16:47:14 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Thu Aug 28 17:30:24 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* ext/openssl/lib/openssl/pkey.rb: Added 2048 bit DH parameter.
+	* test/openssl/test_pkey_dh.rb: ditto.
 
-	* variable.c (rb_const_get_0): should check constants defined in
-	  included modules, if klass is Object. [ruby-talk:79302]
+Sat Jan 16 10:51:19 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* numeric.c (check_uint): check should be done using UINT_MAX, not
-	  INT_MAX. this fix is submitted by Lyle Johnson
-	  <lyle@knology.net> in [ruby-core:01486]
+	* enc/unicode.c: fix implicit conversion error with clang. fixup r53548.
+	* string.c: ditto.
 
-Thu Aug 28 05:02:52 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Sat Jan 16 10:31:00 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* parse.y (singleton): typo fixed (ruby-bugs-ja:PR#562)
+	* common.mk: test-sample was changed to test-basic.
+	  [Feature #11982][ruby-core:72823]
+	* basictest/runner.rb: ditto. rename from tool/rubytest.rb.
+	* basictest/test.rb: ditto. rename from sample/test.rb.
+	* defs/gmake.mk: picked from r53540
+	* sample/test.rb: backward compatibility for chkbuild.
 
-Thu Aug 28 02:37:45 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Sat Jan 16 10:23:23 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* eval.c (rb_eval): *a = [1,2] now assigns [[1,2]] to a.
-	  consistent with *a = [1], which set [[1]] to a.
+	* string.c, enc/unicode.c: New code path as a preparation for Unicode-wide
+	  case mapping. The code path is currently guarded by the :lithuanian
+	  option to avoid accidental problems in daily use.
+	* test/ruby/enc/test_case_mapping.rb: Test for above.
+	* string.c: function 'check_case_options': fixed logical errors
+	  (with Kimihito Matsui)
 
-	* node.h: merge NODE_RESTARY to NODE_SPLAT.
+Fri Jan 15 20:20:20 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
-	* parse.y: rules simplified a bit by removing NODE_RESTARY.
+	* regint.h (PLATFORM_UNALIGNED_WORD_ACCESS): The value of
+	  UNALIGNED_WORD_ACCESS should be used to determine whether
+	  unaligned word access is allowed or not. After this commit,
+	  ./configure CPPFLAGS="-DUNALIGNED_WORD_ACCESS=0" disables
+	  unaligned word access even on platforms that support the feature.
 
-	* sample/test.rb: updated for new assignment behavior.
+Fri Jan 15 16:12:10 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Aug 27 22:33:24 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* parse.y (string1): reset heredoc indent for each string literal
+	  so that concatenated string would not be dedented.
+	  [ruby-core:72857] [Bug #11990]
 
-	* error.c (rb_bug): should not use other methods; this function is
-	  not for ordinary use.  [ruby-dev:21259]
+Thu Jan 14 20:01:00 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Wed Aug 27 15:07:57 2003  Minero Aoki  <aamine@loveruby.net>
+	* lib/uri/generic.rb (URI::Generic#to_s): change encoding to
+	  UTF-8 as Ruby 2.2/ by Koichi ITO <koic.ito@gmail.com>
+	  https://github.com/ruby/ruby/pull/1188 fix GH-1188
 
-	* lib/net/smtp.rb (check_response): AUTH CRAM-MD5 returns 334
-	  response. [ruby-list:38279]
+Thu Jan 14 17:36:16 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Aug 27 05:10:15 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* variable.c (rb_f_global_variables): add matched back references
+	  only, as well as defined? operator.
 
-	* win32/win32.c (map_errno): support winsock error.
+Thu Jan 14 16:12:09 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* win32/win32.c (pipe_exec, CreateChild, poll_child_status, waitpid,
-	  kill, link, rb_w32_rename, unixtime_to_filetime, rb_w32_utime):
-	  pass errno to map_errno().
+	* sprintf.c (rb_str_format): format exact number more exactly.
 
-	* win32/win32.c (rb_w32_select, rb_w32_accept, rb_w32_bind,
-	  rb_w32_connect, rb_w32_getpeername, rb_w32_getsockname,
-	  rb_w32_getsockopt, rb_w32_ioctlsocket, rb_w32_listen, rb_w32_recv,
-	  rb_w32_recvfrom, rb_w32_send, rb_w32_sendto, rb_w32_setsockopt,
-	  rb_w32_shutdown, rb_w32_socket, rb_w32_gethostbyaddr,
-	  rb_w32_gethostbyname, rb_w32_gethostname, rb_w32_getprotobyname,
-	  rb_w32_getprotobynumber, rb_w32_getservbyname, rb_w32_getservbyport,
-	  rb_w32_fclose, rb_w32_close): use map_errno().
+Thu Jan 14 15:08:43 2016  Tony Arcieri  <bascule@gmail.com>
 
-	* win32/win32.h: add winsock errors.
+	* Remove 512-bit DH group. It's affected by LogJam Attack.
+	  https://weakdh.org/
+	  [fix GH-1196][Bug #11968][ruby-core:72766]
 
-Tue Aug 26 23:53:23 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Thu Jan 14 11:44:29 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/ostruct.rb (OpenStruct::method_missing): prohibit modifying
-	  frozen OpenStruct. [ruby-talk:80214]
+	* variable.c (rb_f_global_variables): add $1..$9 only if $~ is
+	  set.  fix the condition removed at r14014.
 
-Tue Aug 26 20:03:50 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jan 13 17:21:45 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* lib/mkmf.rb (create_tmpsrc): add the hook for source.
-	  [ruby-list:38122]
+	* .travis.yml: removed commented-out code.
 
-Tue Aug 26 15:59:53 2003  why the lucky stiff  <why@ruby-lang.org>
+Wed Jan 13 17:14:54 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* implicit.c (syck_type_id_to_taguri): corrected detection of
-	  x-private types.
+	* .travis.yml: removed osx code. follow up with r53517
 
-Sun Aug 24 01:02:48 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jan 13 16:56:19 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* file.c (file_expand_path): performance improvement.
-	  [ruby-talk:79748]
+	* iseq.c (rb_iseq_mark): mark parent iseq to prevent dynamically
+	  generated iseq by eval from GC.  [ruby-core:72620] [Bug #11928]
 
-Sat Aug 23 23:41:16 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Wed Jan 13 03:42:58 2016  Eric Wong  <e@80x24.org>
 
-	* file.c (rb_file_s_expand_path): avoid calling rb_scan_args() for
-	  apparent cases. [ruby-talk:79748]
+	* class.c (Init_class_hierarchy): resolve name for rb_cObject ASAP
+	* object.c (rb_mod_const_set): move name resolution to rb_const_set
+	* variable.c (rb_const_set): do class resolution here
+	  [ruby-core:72807] [Bug #11977]
 
-Sat Aug 23 18:56:53 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jan 13 00:37:12 2016  Satoshi Ohmori  <sachin21dev@gmail.com>
 
-	* ext/nkf/nkf.c (rb_nkf_putchar): should use rb_str_resize() to just
-	  resize a string, rb_str_cat() disallows NULL.  [ruby-dev:21237]
+	* man/ruby.1: fix double word typo.  [Fix GH-1194]
 
-Sat Aug 23 16:48:41 2003  Keiju Ishitsuka  <keiju@ishitsuka.com>
+Tue Jan 12 21:01:09 2016  Benoit Daloze  <eregontp@gmail.com>
 
-	* lib/irb/ruby-lex.rb: bug fix for "foo" !~ /bar/. [ruby-talk:79942]
+	* common.mk: update URL and name for the Ruby spec suite.
 
-Sat Aug 23 15:59:58 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Jan 12 19:52:19 2016  sorah (Shota Fukumori)  <her@sorah.jp>
 
-	* eval.c (rb_eval, rb_iterate, block_pass): reduce PUSH/POP_TAG and
-	  EXEC_TAG() for retry.  [ruby-dev:21216]
+	* lib/forwardable.rb: Convert given accessors to String.
 
-Sat Aug 23 02:32:33 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	  r53381 changed to accept only Symbol or String for accessors, but
+	  there are several rubygems that pass classes (e.g. Array,
+	  Hash, ...) as accessors. Prior r53381, it was accepted because Class#to_s
+	  returns its class name. After r53381 given accessors are checked
+	  with define_method, but it accepts only Symbol or String, otherwise
+	  raises TypeError.
 
-	* eval.c (rb_yield_splat): should check if "values" is array.
+	      def_delegator Foo, :some_method
 
-	* enum.c (each_with_index_i): typo.
+	  This change is to revert unexpected incompatibility. But this behavior
+	  may change in the future.
 
-Fri Aug 22 17:07:05 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Mon Jan 12 18:41:41 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* enum.c (inject_i): use rb_yield_values.
+	* string.c: made a variable name more grammatically correct
 
-	* enum.c (each_with_index_i): ditto.
+Mon Jan 12 18:34:34 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* eval.c (rb_yield_splat): new function to call "yield *values".
+	* string.c: minor grammar fix [ci skip]
 
-	* string.c (rb_str_scan): use rb_yield_splat().
+Mon Jan 12 16:09:09 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Fri Aug 22 06:13:22 2003  why the lucky stiff  <why@ruby-lang.org>
+	* test/ruby/enc/test_casing_options.rb: Tests for option
+	  parsing/checking for upcase/downcase/capitalize/swapcase
+	  (see r53503; with Kimihito Matsui)
 
-	* ext/syck/rubyext.c: refactoring of the transfer method
-	  dispatch.  added yaml_org_handler for faster dispatch of
-	  transfers to base types.
+Mon Jan 12 16:03:03 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* lib/yaml/rubytypes.rb: removed handling of builtins from
-	  Ruby library.
+	* string.c: Added option parsing/checking for upcase/downcase/
+	  capitalize/swapcase (with Kimihito Matsui)
 
-	* ext/syck/token.c: quoted and block scalars are now implicit !str
+Mon Jan 11 21:28:28 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-	* ext/syck/implicit.c: empty string detected as !null.
+	* include/ruby/oniguruma.h: Added flags needed for upcase/downcase
+	  Unicode addition (with Kimihito Matsui)
 
-Fri Aug 22 01:00:31 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Jan 11 09:50:24 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* eval.c (block_pass): improve passing current block.
+	* configure.in: check if the API version number is consistent with
+	  the program version number.
 
-Fri Aug 22 00:13:00 2003  Shigeo Kobayashi  <shigek@ruby-lang.org>
+Sun Jan 10 20:57:25 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/bigdecimal/bigdecimal.c: Int. overflow bug in multiplication
-	  fixed, and VpNmlz() speed up.
+	* compile.c (compile_massign_lhs): when index ends with splat,
+	  append rhs value to it like POSTARG, since VM_CALL_ARGS_SPLAT
+	  splats the last argument only.  [ruby-core:72777] [Bug #11970]
 
-Wed Aug 20 16:44:49 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Sun Jan 10 15:45:10 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/socket/socket.c (ruby_connect): many systems seem to have
-	  a problem in select() after EINPROGRESS.  [ruby-list:38080]
+	* include/ruby/missing.h (explicit_bzero_by_memset_s): remove
+	  inline implementation by memset_s, which needs a macro before
+	  including headers and can cause problems in extension libraries
+	  by the order of the macro and headers.
 
-Wed Aug 20 01:31:17 2003  why the lucky stiff  <why@ruby-lang.org>
+Sun Jan 10 13:41:36 2016  Eric Wong  <e@80x24.org>
 
-	* ext/syck/syck.h: Parser definition problems on HP-UX.
-	  [ruby-talk:79389]
+	* io.c (rb_deferr): remove long obsolete global
 
-	* ext/syck/handler.c (syck_hdlr_get_anchor): Memory leak.
+Sun Jan 10 09:14:42 2016  Eric Wong  <e@80x24.org>
 
-	* ext/syck/syck.s (syck_io_file_read): Bad arguments to fread.
+	* ext/psych/lib/psych/visitors/yaml_tree.rb (visit_String):
+	  eliminate chomp
+	* lib/net/http.rb (connect): eliminate delete
+	* lib/net/http/header.rb (basic_encode): ditto
+	* lib/net/imap.rb (authenticate): eliminate gsub
+	  (self.encode_utf7): shorten delete arg
+	* lib/net/smtp.rb (base64_encode): eliminate gsub
+	* lib/open-uri.rb (OpenURI.open_http): eliminate delete
+	* lib/rss/rss.rb: ditto
+	* lib/securerandom.rb (base64): ditto
+	  (urlsafe_base64): eliminate delete!
+	* lib/webrick/httpauth/digestauth.rb (split_param_value):
+	  eliminate chop
+	* lib/webrick/httpproxy.rb (do_CONNECT): eliminate delete
+	  (setup_upstream_proxy_authentication): ditto
+	  [ruby-core:72666] [Feature #11938]
 
-	* ext/syck/rubyext.c: Tainting issues.
+Sat Jan  9 23:19:14 2016  Kuniaki IGARASHI  <igaiga@gmail.com>
 
-Tue Aug 19 23:20:00 2003  Shigeo Kobayashi  <shigek@ruby-lang.org>
+	* test/ruby/test_hash.rb (test_try_convert): Add test for
+	  Hash.try_convert.  [Fix GH-1190]
 
-	* ext/bigdecimal/bigdecimal.c .h .html: to_s("+") implemented.
+Sat Jan  9 23:15:25 2016  Jon Moss  <maclover7@users.noreply.github.com>
 
-	* ext/bigdecimal/lib/bigdecimal/math.rb: E implemented.
+	* ext/openssl/ossl.c: Add missing variables to documentation
+	  examples.  [Fix GH-1189]
 
-Tue Aug 19 07:47:09 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Sat Jan  9 18:25:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/webrick/ssl.rb: new file; SSL/TLS enhancement for GenericServer.
+	* symbol.h (is_attrset_id): ASET is an attrset ID.  fix
+	  unexpected safe call instead of an ordinary ASET.
 
-	* lib/webrick/https.rb: SSLSocket handling is moved to webrick/ssl.rb.
+Sat Jan  9 10:44:33 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/webrick/compat.rb (File::fnmatch): remove old migration code.
+	* configure.in, win32/setup.mak: extract RUBY_PROGRAM_VERSION from
+	  RUBY_VERSION in version.h instead of RUBY_API_VERSION numbers in
+	  include/ruby/version.h, and cut it into version numbers.
 
-	* lib/webrick/httpserver.rb (HTTPServer#run): ditto.
+Sat Jan  9 07:13:33 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* lib/webrick/server.rb (GenericServer#listen): the body of this
-	  method is pull out as Utils::create_lisnteners.
+	* gc.c: rename PAGE_* to HEAP_PAGE_* because PAGE_SIZE is used
+	  in Mac OS X.
 
-	* lib/webrick/utils.rb (Utils::create_lisnteners): new method.
+	* test/ruby/test_gc.rb: catch up this fix.
 
-	* lib/webrick/server.rb (GenericServer#start): should rescue
-	  unknown errors. and refine comments.
+Sat Jan  9 05:45:40 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/openssl/lib/openssl/ssl.rb (SSLServer#accept): should close
-	  socket if SSLSocket raises error.
+	* gc.c: PAGE_BITMAP_PLANES (the number of bitmap) is 4, not 3.
 
-Tue Aug 19 11:19:33 2003  Shugo Maeda  <shugo@ruby-lang.org>
+Sat Jan  9 05:42:57 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* io.c (next_argv): should not call GetOpenFile() if rb_stdout is
-	  not a IO (T_FILE).
+	* gc.c: rename constant names HEAP_* to PAGE_*.
 
-Tue Aug 19 07:47:09 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	  Keys of GC::INTERNAL_CONSTANTS are also renamed.
 
-	* ext/openssl/ossl_ssl.c: sync_close is moved to SSLSocket as
-	  a builtin.
+	* test/ruby/test_gc.rb: catch up this fix.
 
-	* ext/openssl/lib/openssl/buffering.rb (Buffering#close): ditto.
+Fri Jan  8 22:30:06 2016  Akinori MUSHA  <knu@iDaemons.org>
 
-	* ext/openssl/lib/openssl/buffering.rb (Buffering#puts): should
-	  add a return to the tails of each line.
+	* doc/regexp.rdoc: [DOC] Elaborate on the \G anchor. [ci skip]
 
-	* ext/openssl/lib/openssl/ssl.rb: new class OpenSSL::SSL::SSLServer.
+Fri Jan  8 19:49:27 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/openssl/lib/net/protocols.rb (SSLIO#ssl_connect): use sync_close.
+	* gc.c: remove heap_page::body. Instead of this field,
+	  heap_page::start field works well.
 
-	* ext/openssl/sample/echo_svr.rb: use SSLServer.
+Fri Jan  8 19:31:52 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/openssl/sample/echo_cli.rb: add example of SSLSocket#sync_close.
+	* gc.c: rename rb_heap_t::page_length to rb_heap_t::total_pages.
 
-Tue Aug 19 01:24:34 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	  `page_length' is not clear (we may understand with length of
+	  a page).
 
-	* ext/curses/curses.c (_XOPEN_SOURCE_EXTENDED): Mac OS X standard
-	  headers are inconsistent at this macro.  [ruby-core:01432]
+Fri Jan  8 17:07:14 2016  Koichi Sasada  <ko1@atdot.net>
 
-	* ext/curses/extconf.rb: check if _XOPEN_SOURCE_EXTENDED breaks.
+	* gc.c: remove heap_page::heap. This field is only used to recognize
+	  whether a page is in a tomb or not. Instead of this field,
+	  heap_page::flags::in_tomb (1 bit field) is added.
 
-	* ext/tcltklib/stubs.c: Status macro in X11/Xthreads.h bothers
-	  winspool.h
+	  Also type of heap_page::(total|free|final)_slots are changed from
+	  int to short. 2B is enough for them.
 
-	* instruby.rb: make list at first instead of iterator.
-	  [ruby-talk:79347]
+Fri Jan  8 09:33:59 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-Mon Aug 18 11:23:11 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* iseq.c (rb_iseq_compile_with_option): move variable initialization
+	  code to avoid maybe-uninitialized warnings by gcc 4.8.
 
-	* dir.c (glob_helper): preserve raw order for **.
+Fri Jan  8 00:03:22 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-Sun Aug 17 23:39:55 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* enum.c (enum_min, enum_max): do the same optimization as r53454.
 
-	* ext/openssl/extconf.rb (HAVE_VA_ARGS_MACRO): need to compile.
+Thu Jan  7 22:32:21 2016  Kenta Murata  <mrkn@mrkn.jp>
 
-Sun Aug 17 17:10:03 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+	* ruby.h: undef HAVE_BUILTIN___BUILTIN_CHOOSE_EXPR_CONSTANT_P
+	  and HAVE_BUILTIN___BUILTIN_TYPES_COMPATIBLE_P on C++.
+	  [ruby-core:72736] [Bug #11962]
 
-	* ext/openssl/lib/openssl/ssl.rb (SSLSocket#sync_close=): add a
-	  method to specify if the underlying IO will be closed in
-	  SSLSocket#close.
+Thu Jan  7 22:02:21 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
-	* ext/openssl/lib/openssl/buffering.rb: add forwarders to
-	  setsockopt, getsockopt and fcntl.
+	* enum.c (enum_minmax): optimize object comparison in
+	  Enumerable#minmax.
 
-	* ext/openssl/lib/net/protocols.rb: enable sync for SSLSocket.
+Thu Jan  7 14:49:12 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Sun Aug 17 11:32:04 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* thread.c (rb_thread_pending_interrupt_p): no pending interrupt
+	  before initialization.
 
-	* ext/extmk.rb (extmake): should not force to remake Makefile when
-	  installation and so on.
+	* thread.c (thread_raise_m, rb_thread_kill): uninitialized thread
+	  cannot interrupt.  [ruby-core:72732] [Bug #11959]
 
-Sat Aug 16 23:58:18 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Jan  7 11:34:14 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* marshal.c (w_symbol, w_object): get rid of warnings.
+	* include/ruby/backward.h (ruby_show_copyright_to_die): for source
+	  code backward compatibility.
 
-	* re.c (rb_memsearch): ditto.
+	* ruby.c (process_options): return Qtrue to exit the process
+	  successfully.
 
-	* time.c (time_dump): ditto.
+	* version.c (ruby_show_copyright): no longer exit.
 
-	* ext/extmk.rb (extmake): not continue making when extconf.rb
-	  failed.
+Wed Jan  6 17:22:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/openssl/extconf.rb: check __VA_ARGS__ macro more precisely.
+	* lib/optparse.rb (OptionParser#order!): add `into` optional
+	  keyword argument to store the results.  [Feature #11191]
 
-	* ext/openssl/ossl.h: remove version.h dependency.
+Tue Jan  5 21:44:37 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/openssl/ruby_missing.h: ditto.
+	* ChangeLog: fix wrong class name.
 
-	* lib/mkmf.rb (pkg_config): use --libs output except with
-	  only-L for other options.  [ruby-list:38099]
+Tue Jan  5 21:43:50 2016  Kuniaki IGARASHI  <igaiga@gmail.com>
 
-	* lib/mkmf.rb (create_makefile): separate rule for static
-	  library from shared object.
+	* test/ruby/test_string.rb(test_chr): added test for String#chr
+	  [fix GH-1179]
 
-	* win32/Makefile.sub, bcc32/Makefile.sub, wince/Makefile.sub:
-	  define exec_prefix and libdir.
+Tue Jan  5 21:32:26 2016  Kuniaki IGARASHI  <igaiga@gmail.com>
 
-Fri Aug 15 23:15:00 2003  Shigeo Kobayashi  <shigek@ruby-lang.org>
+	* test/ruby/test_numeric.rb (test_nonzero_p): added test for Numeric#nonzero?
+	  [fix GH-1187]
 
-	* ext/bigdecimal/bigdecimal.c .h: Bug in combination of limit & div
-	  method fixed.
+Tue Jan  5 11:47:23 2016  Damir Gaynetdinov  <damir.gaynetdinov@gmail.com>
 
-	* ext/bigdecimal/lib/bigdecimal/math.rb: atan() & sqrt() added.
+	* doc/marshal.rdoc: Clarify object references example, that the
+	  reference is same object.  [Fix GH-1156]
 
-Fri Aug 15 12:01:43 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue Jan  5 05:06:51 2016  Eric Wong  <e@80x24.org>
 
-	* configure.in (HUGE_ST_INO): check whether struct stat.st_ino
-	  is larger than long.  [ruby-dev:21194]
-	  http://www.geocities.co.jp/SiliconValley-PaloAlto/1409/ruby/beos.html
+	* ext/stringio/stringio.c (strio_binmode): implement to set encoding
+	* test/stringio/test_stringio.rb (test_binmode): new test
+	  [ruby-core:72699] [Bug #11945]
 
-	* error.c (syserr_eqq): errno might exceed Fixnum limit.
+Mon Jan  4 15:44:37 2016  Sho Hashimoto  <sho-h@ruby-lang.org>
 
-	* error.c (Init_Exception): moved base initialization from
-	  init_syserr().
+	* variable.c (rb_mod_deprecate_constant): [DOC] added
+	  documentation for Module#deprecate_constant. [ci skip]
 
-	* inits.c (rb_call_inits): postpone initializing errnos until
-	  Bignum is available.
+Mon Jan  4 15:36:38 2016  Sho Hashimoto  <sho-h@ruby-lang.org>
 
-Fri Aug 15 12:01:43 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* thread_sync.c: [DOC] remove SizedQueue#close argument.
+	  [ci skip]
 
-	* ext/curses/curses.c (_XOPEN_SOURCE_EXTENDED): needed to let
-	  keyname() and so on be declared.
+Mon Jan  4 10:14:24 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/curses/curses.c (curses_resizeterm, window_resize):
-	  arguments conflicted with macros in term.h.
+	* test/coverage/test_coverage.rb: ignored test when enabled to coverage.
+	  It lead to crash with `make test-all`.
 
-	* ext/curses/curses.c (Curses module methods): ensure
-	  initialized.  [ruby-dev:21191]
+Mon Jan  4 08:10:44 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
 
-Fri Aug 15 02:08:53 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* insns.def (opt_case_dispatch): Move a comment to the
+	  appropriate position.
+	  [ci skip]
 
-	* gc.c (id2ref): recycle check should be done by klass == 0.
-	  [ruby-core:01408]
+Sun Jan  3 23:55:13 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Fri Aug 15 01:34:23 2003  Michal Rokos  <m.rokos@sh.cvut.cz>
+	* lib/rubygems/security.rb (DIGEST_ALGORITHM, KEY_ALGORITHM):
+	  should check same name as the used constants.
+	  [ruby-core:72674] [Bug #11940]
 
-	* ext/openssl/ossl_pkey.c: move generate_cb here
+Sun Jan  3 19:22:01 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/openssl/ossl_pkey_{dh|dsa|rsa}.c: adapt to this cb
+	* aclocal.m4: add fallback file for non-aclocal environments.
+	  [ruby-core:72683] [Bug #11942]
 
-	* ext/openssl/openssl_missing.[ch]: add (0.9.6x, x<j) missing BN funcs
+Sun Jan  3 13:56:49 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
 
-	* ext/openssl/ossl_bn.c: use supplied funcs from openssl_missing.c
+	* eval_error.c (rb_print_undef): Use `rb_method_visibility_t`
+	  instead of `int`.
+	* eval_intern.h (rb_print_undef): ditto
+	* proc.c (mnew_internal): ditto
+	* vm_method.c (rb_export_method): ditto
+	  [Misc #11649] [ruby-core:71311] [fix GH-1078]
 
-Fri Aug 15 00:38:00 2003  Shigeo Kobayashi  <shigek@ruby-lang.org>
+Sun Jan  3 12:12:09 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/bigdecimal/bigdecimal.c: Bug in div method fixed.
+	* acinclude.m4: rename aclocal.m4, which should be generated by
+	  aclocal.  [ruby-core:72675] [Bug #11941]
 
-	* ext/bigdecimal/lib/bigdecimal/math.rb: Newly added.
+Sat Jan  2 21:07:55 2016  Eric Wong  <e@80x24.org>
 
-	* ext/bigdecimal/sample/pi.rb: Changed so as to use math.rb.
+	* thread_sync.c (queue_do_pop): avoid cast with Qfalse
+	  (rb_szqueue_push): ditto, use queue_sleep wrapper
 
-Thu Aug 14 21:19:14 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Sat Jan  2 16:16:14 2016  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
 
-	* eval.c (Init_Thread): Continuation#[] added.  [ruby-talk:79028]
+	* lib/erb.rb: Allow ERB subclass to add token easily.
+	  [Feature #11936]
 
-Thu Aug 14 20:03:34 2003  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
+	* test/erb/test_erb.rb: ditto.
 
-	* ext/win32ole/win32ole.c (OLE_FREE): should not call
-	  ole_message_loop.
+Sat Jan  2 14:44:31 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/win32ole/win32ole.c (ole_event_free): ditto.
+	* parse.y (regexp): set_yylval_num sets u1, should use nd_tag
+	  instead of nd_state.  [ruby-core:72638] [Bug #11932]
 
-	* ext/win32ole/win32ole.c (ole_initialize): stop calling
-	  OleUninitialize at exit.
+Sat Jan  2 02:27:22 2016  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
 
-Thu Aug 14 11:27:37 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* lib/ostruct.rb: Fix case of frozen object with initializer.
+	  Bug revealed by RubySpec [ruby-core:72639]
 
-	* gc.c (rb_data_object_alloc): check type of 1st argument.
-	  [ruby-dev:21192]
+Fri Jan  1 22:01:52 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
-Thu Aug 14 00:21:14 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* NEWS: mention CSV's liberal_parsing option.
 
-	* parse.y (mlhs_node): should allow "::Foo" (colon3) as lhs.
+Fri Jan  1 19:38:23 2016  okkez  <okkez000@gmail.com>
 
-	* parse.y (lhs): ditto.
+	* doc/NEWS-2.3.0: fix double words typo.
+	  [ci skip][fix GH-1183]
 
-	* parse.y (yylex): should return tCOLON3 right after kCLASS.
-	  [ruby-talk:78918]
+Fri Jan  1 15:28:56 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* error.c (exc_initialize): was converting argument to string too
-	  eagerly.  Only check was needed. [ruby-talk:78958]
+	* compile.c (remove_unreachable_chunk): decrease count of
+	  call_info in removed instructions.  fix up r53402.
 
-Wed Aug 13 23:31:00 2003  Shigeo Kobayashi  <shigek@ruby-lang.org>
+Fri Jan  1 12:05:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* ext/bigdecimal/bigdecimal.c .h .html: Ambiguity of
-	  BigDecimal::limit removed.
+	* compile.c (remove_unreachable_chunk): remove unreferred label
+	  to optimize away unreachable chunk.
 
-Wed Aug 13 19:21:34 2003  Christian Neukirchen  <chneukirchen@yahoo.de>
+Fri Jan  1 11:42:57 2016  James Edward Gray II  <james@graysoftinc.com>
 
-	* lib/webrick/https.rb (HTTPServer#run): should set syncing-mode
-	  to SSLSocket. [ruby-talk:78919]
+	* lib/csv.rb (CSV): Add a liberal_parsing option.
+	  Patch by Braden Anderson. [#11839]
+	* test/csv/test_features.rb:  test liberal_parsing
 
-Wed Aug 13 18:13:49 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Fri Jan  1 10:27:28 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* eval.c (POP_BLOCK): turn on BLOCK_LEFT flag when leaving block.
+	* tool/mkconfig.rb (RbConfig): prefix SDKROOT to oldincludedir
+	  not includedir, the latter is outside the ruby installation.
+	  [ruby-core:72496] [Bug #11881]
 
-	* eval.c (proc_invoke): unpack return/break destination when block
-	  is already left.
+Fri Jan  1 08:53:02 2016  Yuki Kurihara  <co000ri@gmail.com>
 
-Wed Aug 13 15:58:31 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+	* test/ruby/test_lazy_enumerator.rb (test_take_bad_arg): Add test
+	  code in case of Enumerator::Lazy#take called with negative number.
+	  [ruby-dev:49467] [Bug #11933]
 
-	* object.c (rb_class_s_alloc): add function prototype to avoid VC++
-	  warning.
+Fri Jan  1 05:06:20 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Wed Aug 13 13:50:59 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* parse.y (parser_here_document): update indent for each line in
+	  indented here document with single-quotes.
+	  [ruby-core:72479] [Bug #11871]
 
-	* ext/Win32API/Win32API.c (Win32API_initialize): should pass some
-	  class to first argument of Data_Wrap_Struct(). (ruby-bugs:PR#1109)
+Fri Jan  1 03:26:44 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Tue Aug 12 16:55:11 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* lib/ostruct.rb (freeze): define deferred accessors before
+	  freezing to get rid of an error when just reading frozen
+	  OpenStruct.
 
-	* Makefile.in: static link libraries to LIBRUBY_SO with static linked
-	  ext.  [ruby-dev:21157]
+Thu Dec 31 14:36:45 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
 
-	* ext/extmk.rb (extmake): sort extension library initialization order.
+	* lib/ostruct.rb: Fix new_ostruct_member to correctly avoid
+	  redefinition [#11901]
 
-	* ext/extmk.rb (extmake): compact $extlibs.
+Thu Dec 31 02:45:12 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-Tue Aug 12 02:48:56 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* test/ruby/test_module.rb (test_classpath): r53376 may change
+	  the order of m.constants.
+	  `make TESTS='-v ruby/test_class.rb ruby/test_module.rb' test-all`
+	  may fail after that.
+	  http://rubyci.s3.amazonaws.com/tk2-243-31075/ruby-trunk/log/20151230T164202Z.log.html.gz
 
-	* eval.c (THREAD_SAVE_CONTEXT): should explicitly turn off the
-	  flag before calling getcontext(2).
+Thu Dec 31 02:20:00 2015  Benoit Daloze  <eregontp@gmail.com>
 
-	* eval.c (struct thread): add member to save backing store on
-	  IA64. (ruby-bugs PR1086)
+	* common.mk (help): Fix typo.
 
-	* eval.c (thread_mark): mark IA64 backing store region.
+Wed Dec 30 20:53:09 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* eval.c (thread_free): free saved IA64 backing store.
+	* lib/net/http/responses.rb: Added new response class for 451 status code.
+	* lib/net/http.rb: documentation for HTTPUnavailableForLegalReasons
 
-	* eval.c (rb_thread_save_context): save IA64 backing store as well.
+Wed Dec 30 20:45:45 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* eval.c (rb_thread_restore_context): restore IA64 backing store.
+	* lib/webrick/httpstatus.rb: Added HTTP 451 Status Code.
+	  [fix GH-1167] Patch by @MuhammetDilmac
+	  https://tools.ietf.org/html/draft-tbray-http-legally-restricted-status-00
 
-	* eval.c (THREAD_ALLOC): initialize IA64 members.
+Wed Dec 30 20:25:52 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Mon Aug 11 22:31:50 2003  NAKAMURA, Hiroshi  <nahi@ruby-lang.org>
+	* doc/syntax/calling_methods.rdoc: fix old operator for safe navigation
+	  operator. [ci skip][fix GH-1182] Patch by @dougo
 
-	* lib/debug.rb(debug_command): inspection command should inspect
-	  resulting value even if it's nil.  [ruby-dev:21180] by OMAE, jun
-	  <jun66j5@ybb.ne.jp>.
+Wed Dec 30 16:43:23 2015  Kuniaki IGARASHI  <igaiga@gmail.com>
 
-	* lib/debug.rb(debug_command): incomplete regexp.
+	* test/ruby/test_string.rb (test_ord): Add test for String#ord.
+	  [Fix GH-1181]
 
-Mon Aug 11 17:33:07 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Wed Dec 30 11:28:57 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* eval.c (rb_call_super): do not use rb_block_given_p() for
-	  check. [ruby-talk:78656]
+	* lib/forwardable.rb (def_instance_delegator): adjust backtrace of
+	  method body by tail call optimization.  adjusting the delegated
+	  target is still done by deleting backtrace.
 
-	* eval.c (BEGIN_CALLARGS): push ITER_NOT only when ITER_PRE.
+	* lib/forwardable.rb (def_single_delegator): ditto.
 
-Sun Aug 10 10:43:05 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Wed Dec 30 11:18:42 2015  Elliot Winkler  <elliot.winkler@gmail.com>
 
-	* ext/openssl/lib/openssl/buffering.rb: increase BLOCK_SIZE
-	  from 1k to 16k bytes. [ruby-talk:78603]
+	* lib/forwardable.rb (def_instance_delegator) fix delegating to
+	  'args' and 'block', clashing with local variables in generated
+	  methods.  [ruby-core:72579] [Bug #11916]
 
-	* ext/openssl/ossl_ssl.c (ossl_sslctx_s_alloc): enable
-	  partial write to allow interruption in SSLSocket#write.
+	* lib/forwardable.rb (def_single_delegator): ditto.
 
-Sun Aug 10 00:34:16 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+Wed Dec 30 09:58:56 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* cygwin/GNUmakefile: remove unnecessary '--drive-name=$(CC)'
-	  for ccache.
+	* object.c (rb_class_inherited_p): search the corresponding
+	  ancestor to prepended module from prepending class itself.
+	  [ruby-core:72493] [Bug #11878]
 
-Sat Aug  9 10:36:21 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+Wed Dec 30 09:20:00 2015  Yuki Kurihara  <co000ri@gmail.com>
 
-	* marshal.c (w_object): do not dump generic instance variable when
-	  marshal_dump is defined.
+	* test/stringio/test_io.rb (test_flag): add assertion for error when
+	  text and binary mode are mixed.
+	  [ruby-dev:49465] [Feature #11921]
 
-Sat Aug  9 00:35:00 2003  Shigeo Kobayashi  <shigek@ruby-lang.org>
+Wed Dec 30 08:43:59 2015  Yuki Kurihara  <co000ri@gmail.com>
 
-	* ext/bigdecimal.c: F style output(like 1234.56789) implemented
-	  to to_s method.
-	* ext/bigdecimal_??.html: F style output(like 1234.56789)
-	  implemented to to_s method.
+	* test/stringio/test_stringio.rb (test_initialize): add test for
+	  StringIO#initialize.  [ruby-core:72585] [Feature #11920]
 
-Fri Aug  8 12:33:17 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+Wed Dec 30 05:19:24 2015  Eric Wong  <e@80x24.org>
 
-	* bcc32/Makefile.sub: rubyw.exe should be a Windows GUI program.
-	  add the -aa option to WLDFLAGS.
+	* class.c (struct clone_const_arg): adjust for id_table
+	  (clone_const): ditto
+	  (clone_const_i): ditto
+	  (rb_mod_init_copy): ditto
+	  (rb_singleton_class_clone_and_attach): ditto
+	  (rb_include_class_new): ditto
+	  (include_modules_at): ditto
+	* constant.h (rb_free_const_table): ditto
+	* gc.c (free_const_entry_i): ditto
+	  (rb_free_const_table): ditto
+	  (obj_memsize_of): ditto
+	  (mark_const_entry_i): ditto
+	  (mark_const_tbl): ditto
+	* internal.h (struct rb_classext_struct): ditto
+	* object.c (rb_mod_const_set): resolve class name on assignment
+	* variable.c (const_update): replace with const_tbl_update
+	  (const_tbl_update): new function
+	  (fc_i): adjust for id_table
+	  (find_class_path): ditto
+	  (autoload_const_set): st_update => const_tbl_update
+	  (rb_const_remove): adjust for id_table
+	  (sv_i): ditto
+	  (rb_local_constants_i): ditto
+	  (rb_local_constants): ditto
+	  (rb_mod_const_at): ditto
+	  (rb_mod_const_set): ditto
+	  (rb_const_lookup): ditto
+	  [ruby-core:72112] [Feature #11614]
 
-Fri Aug  8 11:29:26 2003  Koji Arai  <jca02266@nifty.ne.jp>
+Wed Dec 30 04:10:13 2015  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
 
-	* marshal.c (w_object): should set `c_arg' at first.
+	* thread_pthread.c (rb_thread_create_timer_thread): destroy attr even
+	  if pthread_create() failed.
 
-Fri Aug  8 03:22:28 2003  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+Wed Dec 30 02:55:09 2015  Eric Wong  <e@80x24.org>
 
-	* lib/webrick/httputils.rb (FormData#list): should not take
-	  a side effect for the receiver.
+	* thread_pthread.c (setup_communication_pipe): delay setting owner
+	  (rb_thread_create_timer_thread): until thread creation succeeds
+	  [ruby-core:72590] [Bug #11922]
 
-Thu Aug  7 14:40:37 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+Tue Dec 29 19:12:46 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* cygwin/GNUmakefile: better --disbale-shared option support.
+	* ruby.c (proc_options): -W command line option should be able to
+	  override -w in RUBYOPT environment variable.
 
-	* cygwin/GNUmakefile: add forwarding DLL target for cygwin.
+Tue Dec 29 17:54:16 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Aug  7 14:21:05 2003  Corinna Vinschen  <vinschen@redhat.com>
+	* eval.c (ignored_block): warn if a block is given to `using`,
+	  which is probably for `Module.new`.
 
-	* configure.in: Fix Cygwin specific naming of libraries to
-	  be net distribution compliant. (ruby-bugs:PR#1077)
-	  cygwin-ruby18.dll -> cygruby18.dll
+Tue Dec 29 12:48:34 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-Thu Aug  7 12:51:38 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* lib/ostruct.rb (OpenStruct): make respond_to? working on
+	  just-allocated objects for workaround of Psych.
+	  [ruby-core:72501] [Bug #11884]
 
-	* eval.c (rb_f_at_exit): should not be called without a block.
-	  block_given check added.
+Tue Dec 29 10:35:00 2015  Kenta Murata  <mrkn@mrkn.jp>
 
-Thu Aug  7 06:46:06 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* test/mkmf/test_have_func.rb (test_have_func):
+	  Add assertion to examine the existence of HAVE_RUBY_INIT.
 
-	* eval.c (rb_call0): forgot to pop ruby_class.
+	* test/mkmf/test_have_func.rb (test_not_have_func):
+	  Add assertion to examine the absence of HAVE_RUBY_INIT.
 
-	* eval.c (rb_call0): update ruby_class as well as ruby_cref.
-	  (ruby-bugs-ja:PR#540)
+Tue Dec 29 06:50:42 2015  Eric Wong  <e@80x24.org>
 
-Thu Aug  7 04:52:50 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* thread_sync.c: static classes
 
-	* eval.c (rb_yield_0): remove ruby_frame->cbase and unify to
-	  ruby_cref.  [ruby-talk:78141]
+Tue Dec 29 05:30:30 2015  Eric Wong  <e@80x24.org>
 
-Thu Aug  7 04:19:15 2003  Akinori MUSHA  <knu@iDaemons.org>
+	* lib/resolv.rb (Resolv::IPv6.create): avoid modifying frozen
+	* test/resolv/test_dns.rb (test_ipv6_create): test for above
+	  [Bug #11910] [ruby-core:72559]
 
-	* gc.c: FreeBSD/ia64's mcontext_t is a bit different from that of
-	  Linux/ia64.  This makes gc.c compile but miniruby coredumps for
-	  the moment.
+Mon Dec 28 14:55:57 2015  Kuniaki IGARASHI  <igaiga@gmail.com>
 
-Thu Aug  7 00:15:00 2003  Shigeo Kobayashi  <shigek@ruby-lang.org>
+	* test/ruby/test_string.rb (TestString#test_rstrip_bang): Add test
+	  for String#rstrip!.  [Fix GH-1176]
 
-	* ext/bigdecimal.c: Comparison results adjusted to Float's.
-	* ext/bigdecimal.c: Use rb_num_coerce_????(x,y) instead of own.
+Mon Dec 28 09:18:53 2015  Kuniaki IGARASHI  <igaiga@gmail.com>
 
-Wed Aug  6 22:58:00 2003  Nathaniel Talbott  <ntalbott@ruby-lang.org>
+	* test/ruby/test_string.rb (TestString#test_lstrip_bang): Add test
+	  for String#lstrip!.  [Fix GH-1176]
 
-	* lib/test/unit/testcase.rb: Added equality checking.
-	* lib/test/unit/testsuite.rb: Added equality checking.
-	* lib/test/unit/assertions.rb: Fixed a warning.
+Sun Dec 27 23:32:26 2015  Masaki Suketa <masaki.suketa@nifty.ne.jp>
 
-Wed Aug  6 17:28:10 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* ext/win32ole/win32ole.c (ole_variant2val): refactoring.
 
-	* ext/extmk.rb (extmake): pass LIBPATH to make ruby.  [ruby-dev:21137]
+Sun Dec 27 21:14:42 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* ext/extmk.rb (extmake): set library name as source file name in
-	  Init_ext().  [ruby-dev:21137]
+	* process.c (rb_execarg_parent_start1): need to convert the encoding to
+	  ospath's one.
 
-	* lib/mkmf.rb (Logging::postpone): postpone logging messages after
-	  heading message as the result of the block.
+Sun Dec 27 20:54:22 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* lib/mkmf.rb (macro_defined?): append newline to src unless ended
-	  with it.
+	* process.c: use rb_w32_uchdir() instead of plain chdir() on Windows.
+	  reported by naruse via twitter.
 
-	* lib/mkmf.rb (have_library): treat nil function name as "main".
-	  (ruby-bugs:PR#1083)
+	* process.c (rb_execarg_addopt): need to convert the encoding to
+	  ospath's one.
 
-	* lib/mkmf.rb (pkg_config): should append additional libraries to
-	  $libs but not $LIBS.  [ruby-dev:21137]
+Sun Dec 27 20:00:31 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-	* ext/io/wait/extconf.rb: check DOSISH macro instead of platform.
+	* enc/x_emoji.h: fix dead-link.
 
-	* ext/digest/sha1/extconf.rb: have_library already appends library
-	  name.
+Sun Dec 27 19:55:55 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
-Wed Aug  6 17:23:57 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* doc/NEWS-2.3.0: fix a typo.
 
-	* eval.c: initialize /* OK */ variables by Qnil to stop warnings.
+Sun Dec 27 18:08:15 2015  Kuniaki IGARASHI  <igaiga@gmail.com>
 
-Wed Aug  6 04:58:32 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+	* string.c (rb_str_lstrip_bang, rb_str_rstrip_bang): [DOC] Fix
+	  ruby-doc comments for String#rstrip! and lstrip!.  It looks like
+	  dropped bang.  [Fix GH-1175]
 
-	* ext/Setup*: add io/wait and openssl.
+Sun Dec 27 15:14:20 2015  Eric Wong  <e@80x24.org>
 
-Wed Aug  6 01:13:38 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* io.c (io_getpartial): remove unused kwarg from template
+	* test/ruby/test_io.rb (test_readpartial_bad_args): new
+	  [Bug #11885]
 
-	* eval.c (rb_f_autoload): use ruby_cbase instead of ruby_class.
+Sun Dec 27 11:50:53 2015  Kuniaki IGARASHI  <igaiga@gmail.com>
 
-	* eval.c (rb_f_autoload_p): ditto.
+	* test/ruby/test_string.rb (test_rstrip, test_lstrip): Add tests
+	  for String#lstrip and rstrip.  The test cases are used from
+	  string.c ruby-doc comments.  [Fix GH-1174]
 
-	* class.c (rb_mod_init_copy): no longer implements independent
-	  clone and dup methods.  override "initialize_copy" instead.
-	  [ruby-core:01352]
+Sun Dec 27 11:47:46 2015  Kuniaki IGARASHI  <igaiga@gmail.com>
 
-	* object.c (rb_class_s_alloc): define Class allocation function.
-	  this makes Classes to follow clone framework that uses
-	  initialize_copy.
+	* test/ruby/test_string.rb (test_insert): Add test for
+	  String#insert.  The test cases are written in string.c
+	  comments as a reference.  [Fix GH-1173]
 
-	* object.c (rb_class_initialize): separate instantiation and
-	  initialization.
+Sun Dec 27 11:03:33 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* object.c (rb_obj_alloc): prohibit instantiation from
-	  uninitialized class.
+	* parse.y (show_bitstack): trace stack_type value if yydebug.
 
-	* object.c (rb_class_superclass): check uninitialized class.
+Sun Dec 27 10:03:14 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* array.c (rb_ary_fill): wrong index processing with block.  this
-	  fix was done by Koji Arai <JCA02266@nifty.ne.jp> [ruby-list:38029]
+	* enc/depend (enc, trans): fix version dependency, shared object
+	  files depend on the RUBY_SO_NAME value for runtime link.
 
-	* marshal.c (w_object): should preserve generic ivar for nil,
-	  true, false, symbols, and fixnums.
+Sun Dec 27 09:47:20 2015  Masaki Suketa <masaki.suketa@nifty.ne.jp>
 
-	* marshal.c (w_uclass): base_klass check should be done after
-	  rb_class_real().
+	* ext/win32ole/win32ole.c (ole_vstr2wc, ole_variant2val): fix blank
+	  string conversion.
+	  [Bug #11880]
+	  Thanks Akio Tajima for the patch!
 
-Wed Aug  6 01:18:50 2003  Minero Aoki  <aamine@loveruby.net>
+Sun Dec 27 09:34:53 2015  craft4coder  <yooobuntu@163.com>
 
-	* lib/net/http.rb: update document.
+	* doc/extension.rdoc: [DOC] `nul` should be uppercase.
+	  change 'nul' => 'NUL'.  [Fix GH-1172]
 
-	* lib/net/pop.rb: ditto.
+Sat Dec 26 18:29:01 2015  Kouhei Sutou  <kou@cozmixng.org>
 
-	* lib/net/protocol.rb: ditto.
+	* lib/xmlrpc/client.rb: Support SSL options in async methods of
+	  XMLRPC::Client.
+	  [Bug #11489]
+	  Reported by Aleksandar Kostadinov. Thanks!!!
 
-Wed Aug  6 00:48:37 2003  Koji Arai  <jca02266@nifty.ne.jp>
+Sat Dec 26 11:26:38 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* marshal.c (w_object): should recommend marshal_dump rather than
-	  _dump_data.
+	* miniinit.c (Init_enc): add some common aliases of built-in
+	  encodings.  [ruby-core:72481] [Bug #11872]
 
-Tue Aug  5 17:58:57 2003  WATANABE Hirofumi  <eban@ruby-lang.org>
+Fri Dec 25 22:43:26 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* lib/fileutils.rb (install): should preserve timestamp only.
+	* configure.in: extract RUBY_RELEASE_DAY at generating Makefile.
 
-Tue Aug  5 17:31:59 2003  Ian Macdonald  <ian@caliban.org>
+	* version.h (RUBY_RELEASE_DATE): construct from RUBY_RELEASE_YEAR,
+	  RUBY_RELEASE_MONTH, and RUBY_RELEASE_DAY.
 
-	* lib/shell/command-processor.rb (Shell::CommandProcessor::rmdir):
-	  simple typo.
+Fri Dec 25 21:33:06 2015  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
-Tue Aug  5 15:47:34 2003  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+	* version.h (RUBY_VERSION): 2.4.0 development has started.
 
-	* eval.c (rb_load): should preserve current source file/line.
+Fri Dec 25 14:12:12 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
-Tue Aug  5 10:04:42 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* doc/ChangeLog-2.3.0, ext/tk/lib/tkextlib/SUPPORT_STATUS,
+	  include/ruby/version.h: minor grammar fixes [ci skip]
 
-	* string.c (str_new4): ptr may refer null_str.
+Fri Dec 25 08:23:22 2015  Tadashi Saito  <tad.a.digger@gmail.com>
 
-Mon Aug  4 17:25:18 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+	* compile.c, cont.c, doc, man: fix common misspelling.
+	  [ruby-core:72466] [Bug #11870]
 
-	* stable version 1.8.0 released.
 
+For the changes before 2.3.0, see doc/ChangeLog-2.3.0
+For the changes before 2.2.0, see doc/ChangeLog-2.2.0
+For the changes before 2.1.0, see doc/ChangeLog-2.1.0
+For the changes before 2.0.0, see doc/ChangeLog-2.0.0
+For the changes before 1.9.3, see doc/ChangeLog-1.9.3
 For the changes before 1.8.0, see doc/ChangeLog-1.8.0
 
 Local variables:
+coding: us-ascii
 add-log-time-format: (lambda ()
   (let* ((time (current-time))
 	 (system-time-locale "C")
@@ -23646,4 +8056,6 @@ add-log-time-format: (lambda ()
   (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/GPL b/GPL
index 5b6e7c66c2..d159169d10 100644
--- a/GPL
+++ b/GPL
@@ -1,12 +1,12 @@
-		    GNU GENERAL PUBLIC LICENSE
-		       Version 2, June 1991
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
 
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.
-                       59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  Everyone is permitted to copy and distribute verbatim copies
  of this license document, but changing it is not allowed.
 
-			    Preamble
+                            Preamble
 
   The licenses for most software are designed to take away your
 freedom to share and change it.  By contrast, the GNU General Public
@@ -15,7 +15,7 @@ software--to make sure the software is free for all its users.  This
 General Public License applies to most of the Free Software
 Foundation's software and to any other program whose authors commit to
 using it.  (Some other Free Software Foundation software is covered by
-the GNU Library General Public License instead.)  You can apply it to
+the GNU Lesser General Public License instead.)  You can apply it to
 your programs, too.
 
   When we speak of free software, we are referring to freedom, not
@@ -55,8 +55,8 @@ patent must be licensed for everyone's free use or not licensed at all.
 
   The precise terms and conditions for copying, distribution and
 modification follow.
-
-		    GNU GENERAL PUBLIC LICENSE
+
+                    GNU GENERAL PUBLIC LICENSE
    TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
 
   0. This License applies to any program or other work which contains
@@ -110,7 +110,7 @@ above, provided that you also meet all of these conditions:
     License.  (Exception: if the Program itself is interactive but
     does not normally print such an announcement, your work based on
     the Program is not required to print an announcement.)
-
+
 These requirements apply to the modified work as a whole.  If
 identifiable sections of that work are not derived from the Program,
 and can be reasonably considered independent and separate works in
@@ -168,7 +168,7 @@ access to copy from a designated place, then offering equivalent
 access to copy the source code from the same place counts as
 distribution of the source code, even though third parties are not
 compelled to copy the source along with the object code.
-
+
   4. You may not copy, modify, sublicense, or distribute the Program
 except as expressly provided under this License.  Any attempt
 otherwise to copy, modify, sublicense or distribute the Program is
@@ -225,7 +225,7 @@ impose that choice.
 
 This section is intended to make thoroughly clear what is believed to
 be a consequence of the rest of this License.
-
+
   8. If the distribution and/or use of the Program is restricted in
 certain countries either by patents or by copyrighted interfaces, the
 original copyright holder who places the Program under this License
@@ -255,7 +255,7 @@ make exceptions for this.  Our decision will be guided by the two goals
 of preserving the free status of all derivatives of our free software and
 of promoting the sharing and reuse of software generally.
 
-			    NO WARRANTY
+                            NO WARRANTY
 
   11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
@@ -277,9 +277,9 @@ YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
 POSSIBILITY OF SUCH DAMAGES.
 
-		     END OF TERMS AND CONDITIONS
-
-	    How to Apply These Terms to Your New Programs
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
 
   If you develop a new program, and you want it to be of the greatest
 possible use to the public, the best way to achieve this is to make it
@@ -303,10 +303,9 @@ the "copyright" line and a pointer to where the full notice is found.
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 Also add information on how to contact you by electronic and paper mail.
 
@@ -336,5 +335,5 @@ necessary.  Here is a sample; alter the names:
 This General Public License does not permit incorporating your program into
 proprietary programs.  If your program is a subroutine library, you may
 consider it more useful to permit linking proprietary applications with the
-library.  If this is what you want to do, use the GNU Library General
+library.  If this is what you want to do, use the GNU Lesser General
 Public License instead of this License.
diff --git a/KNOWNBUGS.rb b/KNOWNBUGS.rb
new file mode 100644
index 0000000000..35a8e75876
--- /dev/null
+++ b/KNOWNBUGS.rb
@@ -0,0 +1,7 @@
+#
+# IMPORTANT: Always keep the first 7 lines (comments),
+# even if this file is otherwise empty.
+#
+# This test file includes tests which point out known bugs.
+# So all tests will cause failure.
+#
diff --git a/LEGAL b/LEGAL
index 908eb270f5..cd1cce2de1 100644
--- a/LEGAL
+++ b/LEGAL
@@ -5,34 +5,158 @@ 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.
 
-regex.[ch]:
-
-  These files are under LGPL.  Treat them as LGPL says. (See the file
-  LGPL for details)
-
-    Extended regular expression matching and search library.
-    Copyright (C) 1993, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
-
-    The GNU C Library is free software; you can redistribute it and/or
-    modify it under the terms of the GNU Library General Public License as
-    published by the Free Software Foundation; either version 2 of the
-    License, or (at your option) any later version.
-
-    The GNU C Library is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-    Library General Public License for more details.
-
-    You should have received a copy of the GNU Library General Public
-    License along with the GNU C Library; see the file LGPL.  If not,
-    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-    Boston, MA 02111-1307, USA.  */
-
-    Multi-byte extension added May, 1993 by t^2 (Takahiro Tanimoto)
-    Last change: May 21, 1993 by t^2
-    removed gapped buffer support, multiple syntax support by matz <matz@nts.co.jp>
-    Perl5 extension added by matz <matz@caelum.co.jp>
-    UTF-8 extension added Jan 16 1999 by Yoshida Masato  <yoshidam@tau.bekkoame.ne.jp>
+ccan/build_assert/build_assert.h
+ccan/check_type/check_type.h
+ccan/container_of/container_of.h
+ccan/str/str.h
+
+  These files are licensed under the CC0.
+
+    http://creativecommons.org/choose/zero/
+
+ccan/list/list.h
+
+  This file is licensed under the MIT License.
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+
+include/ruby/oniguruma.h:
+regcomp.c:
+regenc.[ch]:
+regerror.c:
+regexec.c:
+regint.h:
+regparse.[ch]:
+enc/ascii.c
+enc/big5.c
+enc/cp949.c
+enc/emacs_mule.c
+enc/encdb.c
+enc/euc_jp.c
+enc/euc_kr.c
+enc/euc_tw.c
+enc/gb18030.c
+enc/gb2312.c
+enc/gbk.c
+enc/iso_8859_1.c
+enc/iso_8859_10.c
+enc/iso_8859_11.c
+enc/iso_8859_13.c
+enc/iso_8859_14.c
+enc/iso_8859_15.c
+enc/iso_8859_16.c
+enc/iso_8859_2.c
+enc/iso_8859_3.c
+enc/iso_8859_4.c
+enc/iso_8859_5.c
+enc/iso_8859_6.c
+enc/iso_8859_7.c
+enc/iso_8859_8.c
+enc/iso_8859_9.c
+enc/koi8_r.c
+enc/koi8_u.c
+enc/shift_jis.c
+enc/unicode.c
+enc/us_ascii.c
+enc/utf_16be.c
+enc/utf_16le.c
+enc/utf_32be.c
+enc/utf_32le.c
+enc/utf_8.c
+enc/windows_1251.c
+
+Oniguruma  ----   (C) K.Kosako <sndgk393 AT ybb DOT ne DOT jp>
+
+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.
+
+enc/trans/GB/GB12345%UCS.src:
+enc/trans/GB/UCS%GB12345.src:
+
+    Copyright (c) 1991-1994 Unicode, Inc.  All Rights reserved.
+
+    This file is provided as-is by Unicode, Inc. (The Unicode Consortium).
+    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 provided on magnetic media by Unicode, Inc., the sole
+    remedy for any claim will be exchange of defective media within 90
+    days of receipt.
+
+    Recipient is granted the right to make copies in any form for
+    internal distribution and to freely use the information supplied
+    in the creation of products supporting Unicode.  Unicode, Inc.
+    specifically excludes the right to re-distribute this file directly
+    to third parties or other organizations whether for profit or not.
+
+
+enc/trans/GB/GB2312%UCS.src:
+enc/trans/GB/UCS%GB2312.src:
+
+    Copyright (c) 1991-1999 Unicode, Inc.  All Rights reserved.
+
+    This file is provided as-is by Unicode, Inc. (The Unicode Consortium).
+    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 provided on optical media by Unicode, Inc., the sole
+    remedy for any claim will be exchange of defective media within 90
+    days of receipt.
+
+    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.
+
+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.
 
 configure:
 
@@ -43,9 +167,8 @@ configure:
     This configure script is free software; the Free Software Foundation
     gives unlimited permission to copy, distribute and modify it.
 
-config.guess:
-config.sub:
-parse.c:
+tool/config.guess:
+tool/config.sub:
 
   As long as you distribute these files with the file configure, they
   are covered under the Ruby's license.
@@ -72,7 +195,58 @@ parse.c:
     configuration script generated by Autoconf, you may include it under
     the same distribution terms that you use for the rest of that program.
 
+parse.c:
+
+  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.
+
+     Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+     Free Software Foundation, Inc.
+
+     This program is free software; you can redistribute it and/or modify
+     it under the terms of the GNU General Public License as published by
+     the Free Software Foundation; either version 2, or (at your option)
+     any later version.
+
+     This program is distributed in the hope that it will be useful,
+     but WITHOUT ANY WARRANTY; without even the implied warranty of
+     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+     GNU General Public License for more details.
+
+     You should have received a copy of the GNU General Public License
+     along with this program; if not, write to the Free Software
+     Foundation, Inc., 51 Franklin Street, Fifth Floor,
+     Boston, MA 02110-1301, USA.  */
+
+  /* As a special exception, you may create a larger work that contains
+     part or all of the Bison parser skeleton and distribute that work
+     under terms of your choice, so long as that work isn't itself a
+     parser generator using the skeleton or a modified version thereof
+     as a parser skeleton.  Alternatively, if you modify or redistribute
+     the parser skeleton itself, you may (at your option) remove this
+     special exception, which will cause the skeleton and the resulting
+     Bison output files to be licensed under the GNU General Public
+     License without this special exception.
+
+     This special exception was added by the Free Software Foundation in
+     version 2.2 of Bison.  */
+
 util.c (partly):
+
+    Copyright (c) 1991, 2000, 2001 by Lucent Technologies.
+
+    Permission to use, copy, modify, and distribute this software for any
+    purpose without fee is hereby granted, provided that this entire notice
+    is included in all copies of any software which is or includes a copy
+    or modification of this software and in all copies of the supporting
+    documentation for such software.
+
+    THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
+    WARRANTY.  IN PARTICULAR, NEITHER THE AUTHOR NOR LUCENT MAKES ANY
+    REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
+    OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
+
 win32/win32.[ch]:
 
   You can apply the Artistic License to these files. (or GPL,
@@ -83,6 +257,32 @@ win32/win32.[ch]:
     You may distribute under the terms of either the GNU General Public
     License or the Artistic License, as specified in the perl README file.
 
+util.c (partly):
+
+   Copyright (c) 2004-2008 David Schultz <das@FreeBSD.ORG>
+   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.
+
 random.c
 
   This file is under the new-style BSD license.
@@ -92,11 +292,11 @@ 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
@@ -109,8 +309,8 @@ 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
@@ -130,72 +330,146 @@ random.c
     http://www.math.keio.ac.jp/matumoto/emt.html
     email: matumoto@math.keio.ac.jp
 
-st.[ch]:
-x68/*:
+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
+  paragraph 3 below is now null and void.
+
+    Copyright (c) 1990, 1993
+         The Regents of the University of California.  All rights reserved.
+
+    This code is derived from software contributed to Berkeley by
+    Chris Torek.
+
+    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. Neither the name of the University nor the names of its contributors
+       may be used to endorse or promote products derived from this software
+       without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+
+    IMPORTANT NOTE:
+    --------------
+    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:
 missing/alloca.c:
 missing/dup2.c:
+missing/erf.c:
 missing/finite.c:
 missing/hypot.c:
 missing/isinf.c:
 missing/isnan.c:
+missing/lgamma_r.c:
 missing/memcmp.c:
 missing/memmove.c:
-missing/strcasecmp.c:
 missing/strchr.c:
-missing/streror.c:
-missing/strftime.c:
-missing/strncasecmp.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.
 
-missing/strtod.c:
-
-  This file will not be used on most platforms depending on how the
-  configure script results.  In any case you must not receive any fee
-  with the file itself.
-
-    Copyright (c) 1988-1993 The Regents of the University of California.
-    Copyright (c) 1994 Sun Microsystems, Inc.
+missing/crypt.c:
 
-    Permission to use, copy, modify, and distribute this
-    software and its documentation for any purpose and without
-    fee is hereby granted, provided that the above copyright
-    notice appear in all copies.  The University of California
-    makes no representations about the suitability of this
-    software for any purpose.  It is provided "as is" without
-    express or implied warranty.
+  This file is under the old-style BSD license.  Note that the
+  paragraph 3 below is now null and void.
 
-missing/strtoul.c:
+    Copyright (c) 1989, 1993
+    	The Regents of the University of California.  All rights reserved.
 
-  This file will not be used on most platforms depending on how the
-  configure script results.  In any case you must not receive any fee
-  with the file itself.
+    This code is derived from software contributed to Berkeley by
+    Tom Truscott.
 
-    Copyright 1988 Regents of the University of California
+    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. Neither the name of the University nor the names of its contributors
+       may be used to endorse or promote products derived from this software
+       without specific prior written permission.
 
-    Permission to use, copy, modify, and distribute this
-    software and its documentation for any purpose and without
-    fee is hereby granted, provided that the above copyright
-    notice appear in all copies.  The University of California
-    makes no representations about the suitability of this
-    software for any purpose.  It is provided "as is" without
-    express or implied warranty.
+    THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
 
-missing/erf.c:
-missing/crypt.c:
-missing/vsnprintf.c:
+missing/setproctitle.c
 
   This file is under the old-style BSD license.  Note that the
   paragraph 3 below is now null and void.
 
-    Copyright (c) 1990, 1993
-         The Regents of the University of California.  All rights reserved.
-
-    This code is derived from software contributed to Berkeley by
-    Chris Torek.
+    Copyright 2003 Damien Miller
+    Copyright (c) 1983, 1995-1997 Eric P. Allman
+    Copyright (c) 1988, 1993
+    	The Regents of the University of California.  All rights reserved.
 
     Redistribution and use in source and binary forms, with or without
     modification, are permitted provided that the following conditions
@@ -221,10 +495,35 @@ missing/vsnprintf.c:
     OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     SUCH DAMAGE.
 
-    IMPORTANT NOTE:
-    --------------
-    From ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change
-    paragraph 3 above is now null and void.
+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>
+
+    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.
+
+    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.
+
+missing/langinfo.c
+
+  This file is from http://www.cl.cam.ac.uk/~mgk25/ucs/langinfo.c.
+  Ruby uses a modified version. The file contains the following
+  author/copyright notice:
+
+  Markus.Kuhn@cl.cam.ac.uk -- 2002-03-11
+  Permission to use, copy, modify, and distribute this software
+  for any purpose and without fee is hereby granted. The author
+  disclaims all warranties with regard to this software.
 
 ext/digest/md5/md5.[ch]:
 
@@ -264,18 +563,7 @@ ext/digest/rmd160/rmd160.[ch]:
     Copyright (c) Katholieke Universiteit Leuven
     1996, All Rights Reserved
 
-ext/digest/rmd160/rmd160hl.c:
-ext/digest/sha1/sha1hl.c:
-
-  These files are under the beer-ware license.
-
-    "THE BEER-WARE LICENSE" (Revision 42):
-    <phk@login.dkuug.dk> wrote this file.  As long as you retain this notice you
-    can do whatever you want with this stuff. If we meet some day, and you think
-    this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
-
 ext/digest/sha2/sha2.[ch]:
-ext/digest/sha2/sha2hl.c:
 
   These files are under the new-style BSD license.
 
@@ -305,6 +593,28 @@ ext/digest/sha2/sha2hl.c:
     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:
@@ -313,7 +623,7 @@ 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.
@@ -364,7 +674,13 @@ 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.
+
+lib/rdoc/generator/template/darkfish/css/fonts.css:
+
+  This file is licensed under the SIL Open Font License.
+
+    http://scripts.sil.org/OFL
diff --git a/LGPL b/LGPL
deleted file mode 100644
index b1e3f5a263..0000000000
--- a/LGPL
+++ /dev/null
@@ -1,504 +0,0 @@
-		  GNU LESSER GENERAL PUBLIC LICENSE
-		       Version 2.1, February 1999
-
- Copyright (C) 1991, 1999 Free Software Foundation, Inc.
-     59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-[This is the first released version of the Lesser GPL.  It also counts
- as the successor of the GNU Library Public License, version 2, hence
- the version number 2.1.]
-
-			    Preamble
-
-  The licenses for most software are designed to take away your
-freedom to share and change it.  By contrast, the GNU General Public
-Licenses are intended to guarantee your freedom to share and change
-free software--to make sure the software is free for all its users.
-
-  This license, the Lesser General Public License, applies to some
-specially designated software packages--typically libraries--of the
-Free Software Foundation and other authors who decide to use it.  You
-can use it too, but we suggest you first think carefully about whether
-this license or the ordinary General Public License is the better
-strategy to use in any particular case, based on the explanations below.
-
-  When we speak of free software, we are referring to freedom of use,
-not price.  Our General Public Licenses are designed to make sure that
-you have the freedom to distribute copies of free software (and charge
-for this service if you wish); that you receive source code or can get
-it if you want it; that you can change the software and use pieces of
-it in new free programs; and that you are informed that you can do
-these things.
-
-  To protect your rights, we need to make restrictions that forbid
-distributors to deny you these rights or to ask you to surrender these
-rights.  These restrictions translate to certain responsibilities for
-you if you distribute copies of the library or if you modify it.
-
-  For example, if you distribute copies of the library, whether gratis
-or for a fee, you must give the recipients all the rights that we gave
-you.  You must make sure that they, too, receive or can get the source
-code.  If you link other code with the library, you must provide
-complete object files to the recipients, so that they can relink them
-with the library after making changes to the library and recompiling
-it.  And you must show them these terms so they know their rights.
-
-  We protect your rights with a two-step method: (1) we copyright the
-library, and (2) we offer you this license, which gives you legal
-permission to copy, distribute and/or modify the library.
-
-  To protect each distributor, we want to make it very clear that
-there is no warranty for the free library.  Also, if the library is
-modified by someone else and passed on, the recipients should know
-that what they have is not the original version, so that the original
-author's reputation will not be affected by problems that might be
-introduced by others.
-
-  Finally, software patents pose a constant threat to the existence of
-any free program.  We wish to make sure that a company cannot
-effectively restrict the users of a free program by obtaining a
-restrictive license from a patent holder.  Therefore, we insist that
-any patent license obtained for a version of the library must be
-consistent with the full freedom of use specified in this license.
-
-  Most GNU software, including some libraries, is covered by the
-ordinary GNU General Public License.  This license, the GNU Lesser
-General Public License, applies to certain designated libraries, and
-is quite different from the ordinary General Public License.  We use
-this license for certain libraries in order to permit linking those
-libraries into non-free programs.
-
-  When a program is linked with a library, whether statically or using
-a shared library, the combination of the two is legally speaking a
-combined work, a derivative of the original library.  The ordinary
-General Public License therefore permits such linking only if the
-entire combination fits its criteria of freedom.  The Lesser General
-Public License permits more lax criteria for linking other code with
-the library.
-
-  We call this license the "Lesser" General Public License because it
-does Less to protect the user's freedom than the ordinary General
-Public License.  It also provides other free software developers Less
-of an advantage over competing non-free programs.  These disadvantages
-are the reason we use the ordinary General Public License for many
-libraries.  However, the Lesser license provides advantages in certain
-special circumstances.
-
-  For example, on rare occasions, there may be a special need to
-encourage the widest possible use of a certain library, so that it becomes
-a de-facto standard.  To achieve this, non-free programs must be
-allowed to use the library.  A more frequent case is that a free
-library does the same job as widely used non-free libraries.  In this
-case, there is little to gain by limiting the free library to free
-software only, so we use the Lesser General Public License.
-
-  In other cases, permission to use a particular library in non-free
-programs enables a greater number of people to use a large body of
-free software.  For example, permission to use the GNU C Library in
-non-free programs enables many more people to use the whole GNU
-operating system, as well as its variant, the GNU/Linux operating
-system.
-
-  Although the Lesser General Public License is Less protective of the
-users' freedom, it does ensure that the user of a program that is
-linked with the Library has the freedom and the wherewithal to run
-that program using a modified version of the Library.
-
-  The precise terms and conditions for copying, distribution and
-modification follow.  Pay close attention to the difference between a
-"work based on the library" and a "work that uses the library".  The
-former contains code derived from the library, whereas the latter must
-be combined with the library in order to run.
-
-		  GNU LESSER GENERAL PUBLIC LICENSE
-   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
-
-  0. This License Agreement applies to any software library or other
-program which contains a notice placed by the copyright holder or
-other authorized party saying it may be distributed under the terms of
-this Lesser General Public License (also called "this License").
-Each licensee is addressed as "you".
-
-  A "library" means a collection of software functions and/or data
-prepared so as to be conveniently linked with application programs
-(which use some of those functions and data) to form executables.
-
-  The "Library", below, refers to any such software library or work
-which has been distributed under these terms.  A "work based on the
-Library" means either the Library or any derivative work under
-copyright law: that is to say, a work containing the Library or a
-portion of it, either verbatim or with modifications and/or translated
-straightforwardly into another language.  (Hereinafter, translation is
-included without limitation in the term "modification".)
-
-  "Source code" for a work means the preferred form of the work for
-making modifications to it.  For a library, complete source code means
-all the source code for all modules it contains, plus any associated
-interface definition files, plus the scripts used to control compilation
-and installation of the library.
-
-  Activities other than copying, distribution and modification are not
-covered by this License; they are outside its scope.  The act of
-running a program using the Library is not restricted, and output from
-such a program is covered only if its contents constitute a work based
-on the Library (independent of the use of the Library in a tool for
-writing it).  Whether that is true depends on what the Library does
-and what the program that uses the Library does.
-  
-  1. You may copy and distribute verbatim copies of the Library's
-complete source code as you receive it, in any medium, provided that
-you conspicuously and appropriately publish on each copy an
-appropriate copyright notice and disclaimer of warranty; keep intact
-all the notices that refer to this License and to the absence of any
-warranty; and distribute a copy of this License along with the
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diff --git a/Makefile.in b/Makefile.in
index a37bcf65fb..9c8748aa4d 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -1,17 +1,36 @@
 SHELL = /bin/sh
-NULLCMD = :
+NULLCMD = @NULLCMD@
+n=$(NULLCMD)
+ECHO1 = $(V:1=$n)
+RUNCMD = $(SHELL)
+CDPATH = .
+CHDIR = @CHDIR@
+exec = exec
+NULL = /dev/null
+PATH_SEPARATOR = @PATH_SEPARATOR@
 
 #### Start of system configuration section. ####
 
 srcdir = @srcdir@
-VPATH = $(srcdir):$(srcdir)/missing
+top_srcdir = $(srcdir)
+hdrdir = $(srcdir)/include
+PLATFORM_DIR = @PLATFORM_DIR@
 
 CC = @CC@
-YACC = @YACC@
+CPP = @CPP@
+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@
 
 prefix = @prefix@
 exec_prefix = @exec_prefix@
@@ -24,46 +43,85 @@ datadir = @datadir@
 arch = @arch@
 sitearch = @sitearch@
 sitedir = @sitedir@
+archlibdir = @archlibdir@
+ruby_version = @ruby_version@
 
 TESTUI = console
 TESTS =
-RDOCTARGET = @RDOCTARGET@
+INSTALLDOC = @INSTALLDOC@
+DOCTARGETS = @RDOCTARGET@ @CAPITARGET@
 
 EXTOUT = @EXTOUT@
-RIDATADIR = $(DESTDIR)$(datadir)/ri/$(MAJOR).$(MINOR)/system
+arch_hdrdir = $(EXTOUT)/include/$(arch)
+VPATH = $(arch_hdrdir)/ruby:$(hdrdir)/ruby:$(srcdir):$(srcdir)/missing
 
 empty =
+CC_VERSION = @CC_VERSION@
 OUTFLAG = @OUTFLAG@$(empty)
-CFLAGS = @CFLAGS@ @XCFLAGS@ @ARCH_FLAG@
+COUTFLAG = @COUTFLAG@$(empty)
+ARCH_FLAG = @ARCH_FLAG@
+CFLAGS_NO_ARCH = @CFLAGS@
+CFLAGS = $(CFLAGS_NO_ARCH) $(ARCH_FLAG)
 cflags = @cflags@
 optflags = @optflags@
 debugflags = @debugflags@
-CPPFLAGS = -I. -I$(srcdir) @CPPFLAGS@
+warnflags = @warnflags@ @strict_warnflags@
+cppflags = @cppflags@
+XCFLAGS = @XCFLAGS@
+CPPFLAGS = @CPPFLAGS@ $(INCFLAGS)
 LDFLAGS = @STATIC@ $(CFLAGS) @LDFLAGS@
-EXTLDFLAGS = 
+EXTLDFLAGS = @EXTLDFLAGS@
 XLDFLAGS = @XLDFLAGS@ $(EXTLDFLAGS)
-EXTLIBS = 
+EXTLIBS =
 LIBS = @LIBS@ $(EXTLIBS)
 MISSING = @LIBOBJS@ @ALLOCA@
 LDSHARED = @LIBRUBY_LDSHARED@
-DLDFLAGS = @LIBRUBY_DLDFLAGS@ $(EXTLDFLAGS) @ARCH_FLAG@
+DLDFLAGS = @LIBRUBY_DLDFLAGS@ $(XLDFLAGS) $(ARCH_FLAG)
 SOLIBS = @SOLIBS@
 MAINLIBS = @MAINLIBS@
-MINIOBJS = @MINIOBJS@
-
+ARCHMINIOBJS = @MINIOBJS@
+DLNOBJ = @DLNOBJ@
+ENCOBJS = @ENCOBJS@
+EXTOBJS = @EXTOBJS@
+BUILTIN_ENCOBJS = @BUILTIN_ENCOBJS@
+BUILTIN_TRANSSRCS = @BUILTIN_TRANSSRCS@
+BUILTIN_TRANSOBJS = @BUILTIN_TRANSOBJS@
+POSTLINK = @POSTLINK@
+
+RUBY_BASE_NAME=@RUBY_BASE_NAME@
+RUBY_PROGRAM_VERSION=@RUBY_PROGRAM_VERSION@
 RUBY_INSTALL_NAME=@RUBY_INSTALL_NAME@
 RUBY_SO_NAME=@RUBY_SO_NAME@
 EXEEXT = @EXEEXT@
+LIBEXT = @LIBEXT@
 PROGRAM=$(RUBY_INSTALL_NAME)$(EXEEXT)
 RUBY = $(RUBY_INSTALL_NAME)
-MINIRUBY = @MINIRUBY@ $(MINIRUBYOPT)
-RUNRUBY = @RUNRUBY@ $(RUNRUBYOPT) --
+MINIRUBY = @MINIRUBY@\
+	$(MINIRUBYOPT)
+# RUNRUBY_COMMAND:: runruby.rb or baseruby. do not append options directly
+RUNRUBY_COMMAND = @RUNRUBY_COMMAND@
+# RUNRUBY:: run ruby with RUN_OPTS which is passed to ruby
+RUNRUBY = @RUNRUBY@ $(RUN_OPTS)
+# RUNRUBY_DEBUGGER:: debugging option for runruby.rb
+RUNRUBY_DEBUGGER = --debugger='gdb -x run.gdb --quiet --args'
+XRUBY = @XRUBY@
+BTESTRUBY = @BTESTRUBY@\
+	$(MINIRUBYOPT)
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+XRUBY_LIBDIR = @XRUBY_LIBDIR@
+XRUBY_RUBYLIBDIR = @XRUBY_RUBYLIBDIR@
+XRUBY_RUBYHDRDIR = @XRUBY_RUBYHDRDIR@
+BOOTSTRAPRUBY = @BOOTSTRAPRUBY@
 
 #### 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@
@@ -72,131 +130,420 @@ LIBRUBY	      = @LIBRUBY@
 LIBRUBYARG    = @LIBRUBYARG@
 LIBRUBYARG_STATIC = @LIBRUBYARG_STATIC@
 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@
+CP            = cp
+MV            = mv
 RM            = rm -f
+RMDIR         = @RMDIR@
+RMDIRS        = @RMDIRS@
+RMALL         = @RMALL@
 NM            = @NM@
 AR            = @AR@
-ARFLAGS       = rcu
+ARFLAGS       = @ARFLAGS@
 RANLIB        = @RANLIB@
 AS            = @AS@
-ASFLAGS       = @ASFLAGS@
+ASFLAGS       = @ASFLAGS@ $(INCFLAGS)
+IFCHANGE      = $(srcdir)/tool/ifchange
+SET_LC_MESSAGES = env LC_MESSAGES=C
+OBJDUMP       = @OBJDUMP@
+OBJCOPY       = @OBJCOPY@
+VCS           = @VCS@
+VCSUP         = @VCSUP@
+DTRACE        = @DTRACE@
+DTRACE_EXT    = @DTRACE_EXT@
+DTRACE_OBJ    = @DTRACE_OBJ@
+DTRACE_REBUILD= @DTRACE_REBUILD@
+DTRACE_GLOMMED_OBJ = $(DTRACE_REBUILD:yes=ruby-glommed.$(OBJEXT))
 
 OBJEXT        = @OBJEXT@
+ASMEXT        = S
+DLEXT         = @DLEXT@
 MANTYPE	      = @MANTYPE@
+SYMBOL_PREFIX = @SYMBOL_PREFIX@
 
 INSTALLED_LIST= .installed.list
+
+NEWLINE_C     = enc/trans/newline.c
+MINIPRELUDE_C = miniprelude.c
+PRELUDE_C     = prelude.c
+RBCONFIG      = .rbconfig.time
+
+SRC_FILE      = $<
+OS_SRC_FILE   = $<
+DEST_FILE     = $@
+OS_DEST_FILE  = $@
+
+MESSAGE_BEGIN = @for line in
+MESSAGE_END = ; do echo "$$line"; done
+ECHO_BEGIN = @sep=''; for word in
+ECHO_END = ; do echo @ECHO_N@ "$$sep'$$word'@ECHO_C@"; sep=' '; done; echo
+
+DESTDIR       = @DESTDIR@
+
+configure_args = @configure_args@
 #### End of variables
 
-all:
+.SUFFIXES: .inc .h .c .y .i .$(DTRACE_EXT)
 
-.DEFAULT: all
+all:
 
 # Prevent GNU make v3 from overflowing arg limit on SysV.
 .NOEXPORT:
 
 miniruby$(EXEEXT):
-		@$(RM) $@
-		$(PURIFY) $(CC) $(LDFLAGS) $(XLDFLAGS) $(MAINLIBS) $(MAINOBJ) $(MINIOBJS) $(LIBRUBY_A) $(LIBS) $(OUTFLAG)$@
+		@-if test -f $@; then $(MV) -f $@ $@.old; $(RM) $@.old; fi
+		$(ECHO) linking $@
+		$(Q) $(PURIFY) $(CC) $(LDFLAGS) $(XLDFLAGS) $(NORMALMAINOBJ) $(MINIOBJS) $(COMMONOBJS) $(MAINLIBS) $(LIBS) $(OUTFLAG)$@
 
 $(PROGRAM):
 		@$(RM) $@
-		$(PURIFY) $(CC) $(LDFLAGS) $(XLDFLAGS) $(MAINLIBS) $(MAINOBJ) $(EXTOBJS) $(LIBRUBYARG) $(LIBS) $(OUTFLAG)$@
+		$(ECHO) linking $@
+		$(Q) $(PURIFY) $(CC) $(LDFLAGS) $(XLDFLAGS) $(MAINOBJ) $(EXTOBJS) $(LIBRUBYARG) $(MAINLIBS) $(LIBS) $(EXTLIBS) $(OUTFLAG)$@
+		$(Q) $(POSTLINK)
 
 # We must `rm' the library each time this rule is invoked because "updating" a
 # MAB library on Apple/NeXT (see --enable-fat-binary in configure) is not
 # supported.
 $(LIBRUBY_A):
 		@$(RM) $@
-		$(AR) $(ARFLAGS) $@ $(OBJS) $(DMYEXT)
+		$(ECHO) linking static-library $@
+		$(Q) $(AR) $(ARFLAGS) $@ $(LIBRUBY_A_OBJS) $(INITOBJS)
 		@-$(RANLIB) $@ 2> /dev/null || true
+		$(ECHO) verifying static-library $@
+		@$(PURIFY) $(CC) $(LDFLAGS) $(XLDFLAGS) $(MAINOBJ) $(LIBRUBY_A) $(MAINLIBS) $(EXTLIBS) $(LIBS) $(OUTFLAG)conftest$(EXEEXT)
+		@$(RM) conftest$(EXEEXT) conftest.c
 
 $(LIBRUBY_SO):
 		@-$(PRE_LIBRUBY_UPDATE)
-		$(LDSHARED) $(DLDFLAGS) $(OBJS) $(DLDOBJS) $(SOLIBS) $(OUTFLAG)$@
-		@-$(MINIRUBY) -e 'ARGV.each{|link| File.delete link if File.exist? link; \
+		$(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_*' $@
+		$(Q) $(POSTLINK)
+		@-$(MINIRUBY) -e 'ARGV.each{|link| File.delete link rescue nil; \
 						  File.symlink "$(LIBRUBY_SO)", link}' \
 				$(LIBRUBY_ALIASES) || true
 
-fake.rb:	Makefile
-		@echo ' \
-		class Object; \
-		  CROSS_COMPILING = RUBY_PLATFORM; \
-		  remove_const :RUBY_PLATFORM; \
-		  remove_const :RUBY_VERSION; \
-		  RUBY_PLATFORM = "@arch@"; \
-		  RUBY_VERSION = "@MAJOR@.@MINOR@.@TEENY@"; \
-		end; \
-		if RUBY_PLATFORM =~ /mswin|bccwin|mingw/; \
-		  class File; \
-		    remove_const :ALT_SEPARATOR; \
-		    ALT_SEPARATOR = "\\"; \
-		  end; \
-		end; \
-		' > $@
-
-Makefile:	$(srcdir)/Makefile.in
-
-$(MKFILES): config.status $(srcdir)/common.mk
-		MAKE=$(MAKE) $(SHELL) ./config.status
-		@{ \
+ruby_pc = @ruby_pc@
+$(ruby_pc):
+		@./config.status --file=$@:$(srcdir)/template/ruby.pc.in
+
+ruby-runner.h: template/ruby-runner.h.in
+		@./config.status --file=$@:$(srcdir)/template/$(@F).in
+
+ruby-runner$(EXEEXT): ruby-runner.c ruby-runner.h
+	$(Q) $(PURIFY) $(CC) $(CFLAGS) $(CPPFLAGS) -DRUBY_INSTALL_NAME=$(RUBY_INSTALL_NAME) $(LDFLAGS) $(LIBS) $(OUTFLAG)$@ $<
+
+$(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
+	$(Q) $(MAKEDIRS) $(XRUBY_RUBYLIBDIR)/$(arch) $(XRUBY_RUBYHDRDIR)/$(arch)/ruby
+	$(Q) sed '/^\$$:\.unshift/q' $(arch)-fake.rb > fake.rb
+	$(Q) $(BASERUBY) -p \
+	-e '~/^\s*CONFIG\["LDFLAGS"\]/ and' \
+	-e '$$_[/(?=\s*"$$)/] = %q[ #{(CONFIG["LIBPATHFLAG"]%File.dirname(__FILE__)).strip}]' \
+	rbconfig.rb > fake-rbconfig.rb
+	$(INSTALL_SCRIPT) fake.rb $(XRUBY_RUBYLIBDIR)/$(arch)/fake.rb
+	$(INSTALL_SCRIPT) fake-rbconfig.rb $(XRUBY_RUBYLIBDIR)/$(arch)/rbconfig.rb
+	@$(RM) fake.rb fake-rbconfig.rb
+	$(INSTALL_DATA) $(arch_hdrdir)/ruby/config.h $(XRUBY_RUBYHDRDIR)/$(arch)/ruby
+	$(INSTALL_DATA) $(top_srcdir)/include/ruby/win32.h $(XRUBY_RUBYHDRDIR)/ruby
+	$(INSTALL_DATA) $(LIBRUBY) $(LIBRUBY_A) $(XRUBY_RUBYLIBDIR)/$(arch)
+	$(INSTALL_PROGRAM) $(LIBRUBY_SO) $(XRUBY_RUBYLIBDIR)/$(arch)
+
+Makefile:	$(srcdir)/Makefile.in $(srcdir)/enc/Makefile.in
+
+$(MKFILES): config.status $(srcdir)/version.h
+		@[ -f $@ ] && mv $@ $@.old
+		MAKE=$(MAKE) $(SHELL) ./config.status $@
+		@cmp $@ $@.old > /dev/null 2>&1 && echo $@ unchanged && exit 0; \
+		{ \
 		    echo "all:; -@rm -f conftest.mk"; \
 		    echo "conftest.mk: .force; @echo AUTO_REMAKE"; \
 		    echo ".force:"; \
 		} > conftest.mk || exit 1; \
 		$(MAKE) -f conftest.mk | grep '^AUTO_REMAKE$$' >/dev/null 2>&1 || \
-		{ echo "Makefile updated, restart."; exit 1; }
-
-config.status:	$(srcdir)/configure
-		MINIRUBY="$(MINIRUBY)" $(SHELL) ./config.status --recheck
+		{ echo "$@ updated, restart."; exit 1; }
+
+uncommon.mk: $(srcdir)/common.mk
+		sed 's/{\$$([^(){}]*)[^{}]*}//g' $< > $@
+
+.PHONY: reconfig
+reconfig-args = $(srcdir)/$(CONFIGURE) $(configure_args)
+config.status-args = ./config.status --recheck
+reconfig-exec-0 = test -t 1 && { CONFIGURE_TTY=yes; export CONFIGURE_TTY; }; exec 3>&1; exit `exec 4>&1; { "$$@" 3>&- 4>&-; echo $$? 1>&4; } | fgrep -v '(cached)' 1>&3 3>&- 4>&-`
+reconfig-exec-1 = set -x; "$$@"
+
+reconfig config.status:	$(srcdir)/$(CONFIGURE) $(srcdir)/enc/Makefile.in \
+			$(srcdir)/include/ruby/version.h
+	@PWD= MINIRUBY="$(MINIRUBY)"; export MINIRUBY; \
+	set $(SHELL) $($@-args); $(reconfig-exec-$(V))
+
+$(srcdir)/$(CONFIGURE): $(srcdir)/configure.in $(srcdir)/aclocal.m4
+	$(CHDIR) $(srcdir) && exec $(AUTOCONF) -o $(@F)
+
+$(srcdir)/aclocal.m4:
+	$(CHDIR) $(srcdir) && \
+	type $(ACLOCAL) >/dev/null 2>&1 && exec $(ACLOCAL); \
+	touch $(@F)
+
+incs: id.h
+all-incs: probes.h
+
+# Things which should be considered:
+# * with gperf v.s. without gperf
+# * committers may have various versions of gperf
+# * ./configure v.s. ../ruby/configure
+# * GNU make v.s. HP-UX make	# HP-UX make invokes the action if lex.c and keywords has same mtime.
+# * svn checkout generate a file with mtime as current time
+# * ext4 and XFS has a mtime with fractional part
+lex.c: defs/keywords
+	@\
+	if cmp -s $(srcdir)/defs/lex.c.src $?; then \
+	  [ $(Q) ] && echo copying $@ || set -x; \
+	  $(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 's/(long)&((\(struct stringpool_t\) *\*)0)->\(stringpool_[a-z0-9]*\)/offsetof(\1, \2)/g' \
+	  > $@.tmp && \
+	  $(MV) $@.tmp $@ && \
+	  $(CP) $? $(srcdir)/defs/lex.c.src && \
+	  $(CP) $@ $(srcdir)/lex.c.blt; \
+	fi
 
-$(srcdir)/configure: $(srcdir)/configure.in
-		cd $(srcdir) && $(AUTOCONF)
+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
 
-lex.c: keywords
-	( gperf -C -p -j1 -i 1 -g -o -t -N rb_reserved_word -k1,3,$$ $? > $@.tmp && mv $@.tmp $@ ) || \
-	if test -f $@; then \
-	  touch $@ && echo $@ touched.; \
+enc/jis/props.h: enc/jis/props.kwd
+	$(MAKEDIRS) $(@D)
+	@set +e; \
+	if cmp -s $(?:.kwd=.src) $?; then \
+	  set -x; \
+	  $(CP) $(?:.kwd=.h.blt) $@; \
 	else \
-	  cp $(srcdir)/lex.c $@ && echo $@ copied.; \
+	  set -x; \
+	  gperf $(JIS_PROPS_OPTIONS) $? | \
+	  sed 's/(int)(long)&((\([a-zA-Z_0-9 ]*[a-zA-Z_0-9]\) *\*)0)->\([a-zA-Z0-9_]*\),/(char)offsetof(\1, \2),/g' > $@ && \
+	  $(CP) $? $(?:.kwd=.src) && \
+	  $(CP) $@ $(?:.kwd=.h.blt); \
 	fi
 
-.y.c:
-	$(YACC) $<
-	sed '/^#/s|y\.tab\.c|$@|' y.tab.c > $@
-	rm -f y.tab.c
-
 .c.@OBJEXT@:
-	$(CC) $(CFLAGS) $(CPPFLAGS) -c $<
+	@$(ECHO) compiling $<
+	$(Q) $(CC) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) $(COUTFLAG)$@ -c $<
 
 .s.@OBJEXT@:
-	$(AS) $(ASFLAGS) -o $@ $<
+	@$(ECHO) assembling $<
+	$(Q) $(AS) $(ASFLAGS) -o $@ $<
+
+.c.S:
+	@$(ECHO) translating $<
+	$(Q) $(CC) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) $(COUTFLAG)$@ -S $<
+
+.c.i:
+	@$(ECHO) preprocessing $<
+	$(Q) $(CPP) $(warnflags) $(XCFLAGS) $(CPPFLAGS) $(COUTFLAG)$@ -E $< > $@
+
+.d.h:
+	@$(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) $(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 $@
+
+probes.@OBJEXT@: $(srcdir)/probes.d $(DTRACE_REBUILD:yes=probes.stamp)
+	@$(ECHO) processing probes in object files
+	$(Q) $(RM) $@
+	$(Q) $(DTRACE) -G -C $(INCFLAGS) -s $(srcdir)/probes.d -o $@ $(DTRACE_REBUILD_OBJS)
+
+# DTrace static library hacks described here:
+# http://mail.opensolaris.org/pipermail/dtrace-discuss/2005-August/000207.html
+ruby-glommed.$(OBJEXT):
+	@$(ECHO) generating a glommed object with DTrace probes for static library
+	$(Q) $(LD) -r -o $@ $(OBJS)
 
 clean-local::
-	@$(RM) ext/extinit.c ext/extinit.$(OBJEXT)
+	$(Q)$(RM) ext/extinit.c ext/extinit.$(OBJEXT) ext/ripper/y.output \
+		enc/encinit.c enc/encinit.$(OBJEXT)
+	-$(Q)$(RM) $(pkgconfig_DATA)
 
 distclean-local::
-	@$(RM) ext/config.cache $(RBCONFIG)
+	$(Q)$(RM) ext/config.cache $(RBCONFIG) Doxyfile
+	-$(Q)$(RM) run.gdb
+	-$(Q)$(RM) $(INSTALLED_LIST) $(arch_hdrdir)/ruby/config.h verconf.h
+	-$(Q)$(RMDIRS) $(arch_hdrdir)/ruby 2> /dev/null || true
+
+clean-ext distclean-ext realclean-ext::
+	@cd ext 2>/dev/null || exit 0; set dummy `echo "${EXTS}" | tr , ' '`; shift; \
+	test "$$#" = 0 && set .; \
+	set dummy `\
+	    find "$$@" -name Makefile -print | sed 's:^\./::;s:/Makefile$$::' | sort; \
+	`; shift; \
+	cd ..; \
+	for dir do \
+	    echo $(@:-ext=)ing "$$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)$(RMDIR) ext 2> /dev/null || true
+
+clean-extout:
+
+clean-enc distclean-enc realclean-enc:
+	@test -f "$(ENC_MK)" || exit 0; \
+	echo $(@:-enc=ing) encodings; \
+	exec $(MAKE) $(MAKE_ENC) $(@:-enc=)
 
 ext/extinit.$(OBJEXT): ext/extinit.c $(SETUP)
-	$(CC) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) $(OUTFLAG)$@ -c ext/extinit.c
-
-update-rubyspec: 
-	if [ -d $(srcdir)/rubyspec ]; then \
-	  cd $(srcdir)/rubyspec/mspec; \
-	  git pull; \
-	  cd ../spec/rubyspec; \
-	  git pull; \
+	$(ECHO) compiling $@
+	$(Q) $(CC) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) $(COUTFLAG)$@ -c ext/extinit.c
+
+enc/encinit.$(OBJEXT): enc/encinit.c $(SETUP)
+
+update-src::
+	@$(CHDIR) "$(srcdir)" && LC_TIME=C exec $(VCSUP)
+
+update-download:: update-config_files
+
+after-update:: common-srcs
+
+update-mspec:
+	@$(CHDIR) $(srcdir); \
+	if [ -d spec/mspec ]; then \
+	  echo updating mspec ...; \
+	  $(Q1:0=:) set -x; \
+	  cd spec/mspec && \
+	  exec git pull; \
 	else \
-	  git clone $(MSPEC_GIT_URL) $(srcdir)/rubyspec/mspec; \
-	  git clone $(RUBYSPEC_GIT_URL) $(srcdir)/rubyspec/spec/rubyspec; \
+	  echo retrieving mspec ...; \
+	  $(Q1:0=:) set -x; \
+	  exec git clone $(MSPEC_GIT_URL) spec/mspec; \
 	fi
+	$(Q)cd $(srcdir)/spec/mspec && exec git --no-pager log -1 --oneline
+
+update-rubyspec: update-mspec
+	@$(CHDIR) $(srcdir); \
+	if [ -d spec/rubyspec ]; then \
+	  echo updating rubyspec ...; \
+	  $(Q1:0=:) set -x; \
+	  cd spec/rubyspec && \
+	  exec git pull; \
+	else \
+	  echo retrieving rubyspec ...; \
+	  $(Q1:0=:) set -x; \
+	  exec git clone $(RUBYSPEC_GIT_URL) spec/rubyspec; \
+	fi
+	$(Q)cd $(srcdir)/spec/rubyspec && exec git --no-pager log -1 --oneline
+
+test-rubyspec-precheck:
+	@if [ ! -d $(srcdir)/spec/rubyspec ]; then echo No rubyspec here.  make update-rubyspec first.; exit 1; fi
+
+update-doclie:
+	@$(CHDIR) $(srcdir); \
+	if [ -d coverage/doclie ]; then \
+	  echo updating doclie ...; \
+	  $(Q1:0=:) set -x; \
+	  cd coverage/doclie && \
+	  git fetch && \
+	  exec git checkout $(DOCLIE_GIT_REF); \
+	else \
+	  echo retrieving doclie ...; \
+	  $(Q1:0=:) set -x; \
+	  exec git clone --branch $(DOCLIE_GIT_REF) $(DOCLIE_GIT_URL) coverage/doclie; \
+	fi
+
+update-simplecov-html:
+	@$(CHDIR) $(srcdir); \
+	if [ -d coverage/simplecov-html ]; then \
+	  echo updating simplecov-html ...; \
+	  $(Q1:0=:) set -x; \
+	  cd coverage/simplecov-html && \
+	  git fetch && \
+	  exec git checkout $(SIMPLECOV_HTML_GIT_REF); \
+	else \
+	  echo retrieving simplecov-html ...; \
+	  exec git clone --branch $(SIMPLECOV_HTML_GIT_REF) $(SIMPLECOV_HTML_GIT_URL) coverage/simplecov-html; \
+	fi
+
+update-simplecov:
+	@$(CHDIR) $(srcdir); \
+	if [ -d coverage/simplecov ]; then \
+	  echo updating simplecov ...; \
+	  $(Q1:0=:) set -x; \
+	  cd coverage/simplecov && \
+	  git fetch && \
+	  exec git checkout $(SIMPLECOV_GIT_REF); \
+	else \
+	  echo retrieving simplecov ...; \
+	  $(Q1:0=:) set -x; \
+	  exec git clone --branch $(SIMPLECOV_GIT_REF) $(SIMPLECOV_GIT_URL) coverage/simplecov; \
+	fi
+
+update-coverage: update-simplecov update-simplecov-html update-doclie
+
+INSNS	= opt_sc.inc optinsn.inc optunifs.inc insns.inc insns_info.inc \
+	  vmtc.inc vm.inc
+
+$(INSNS): $(srcdir)/insns.def vm_opts.h \
+	  $(srcdir)/defs/opt_operand.def $(srcdir)/defs/opt_insn_unif.def \
+	  $(srcdir)/tool/instruction.rb $(srcdir)/tool/insns2vm.rb
+	$(ECHO) generating $@
+	$(Q) $(BASERUBY) -Ku $(srcdir)/tool/insns2vm.rb $(INSNS2VMOPT) $@
+
+verconf.h: $(RBCONFIG)
 
-test-rubyspec:
-	@if [ ! -d $(srcdir)/rubyspec ]; then echo No rubyspec here.  make update-rubyspec first.; exit 1; fi
-	$(RUNRUBY) $(srcdir)/rubyspec/mspec/bin/mspec -r$(srcdir)/ext/purelib.rb $(srcdir)/rubyspec/spec/rubyspec/$(MAJOR).$(MINOR)
+loadpath: verconf.h
+	@$(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 965ce6de5a..986db329b3 100644
--- a/NEWS
+++ b/NEWS
@@ -1,638 +1,211 @@
-= NEWS
+# -*- rdoc -*-
+
+= NEWS for Ruby 2.4.0
 
 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.
-
-* REXML
-
-  * REXML::Document.entity_expansion_limit=
-
-    New method to set the entity expansion limit. By default the limit is
-    set to 10000.  See the following URL for details.
-
-    http://www.ruby-lang.org/en/news/2008/08/23/dos-vulnerability-in-rexml/
-
-== Changes since the 1.8.6 release
-
-=== Configuration changes
-
-* vendor_ruby directory
-
-  A new library directory named `vendor_ruby' is introduced in
-  addition to `site_ruby'.  The idea is to separate libraries
-  installed by the package system (`vendor') from manually (`site')
-  installed libraries preventing the former from getting overwritten
-  by the latter, while preserving the user option to override vendor
-  libraries with site libraries. (`site_ruby' takes precedence over
-  `vendor_ruby')
-
-  If you are a package maintainer, make each library package configure
-  the library passing the `--vendor' option to `extconf.rb' so that
-  the library files will get installed under `vendor_ruby'.
-
-  You can change the directory locations using configure options such
-  as `--with-sitedir=DIR' and `--with-vendordir=DIR'.
-
-=== Global constants
-
-* new constants
-
-  * RUBY_COPYRIGHT
-  * RUBY_DESCRIPTION
-
-=== Library updates (outstanding ones only)
-
-* new library
-
-  * securerandom
-
-* builtin classes
-
-  * Array#flatten
-  * Array#flatten!
-
-    Takes an optional argument that determines the level of recursion
-    to flatten.
-
-  * Array#eql?
-  * Array#hash
-  * Array#==
-  * Array#<=>
-
-    Handle recursive data properly.
-
-  * Array#index
-  * Array#rindex
-
-    Take a block instead of an argument.
-
-  * Array#collect!
-  * Array#map!
-  * Array#each
-  * Array#each_index
-  * Array#reverse_each
-  * Array#reject
-  * Array#reject!
-  * Array#delete_if
-
-    Return an enumerator if no block is given.
-
-    Note that #map and #collect still return an array unlike Ruby 1.9
-    to keep compatibility.
-
-  * Array#pop
-  * Array#shift
-
-    Take an optional argument specifying the number of elements to
-    remove.
-
-  * Array#choice
-  * Array#combination
-  * Array#cycle
-  * Array#drop
-  * Array#drop_while
-  * Array#permutation
-  * Array#product
-  * Array#shuffle
-  * Array#shuffle!
-  * Array#take,
-  * Array#take_while
-
-    New methods.
-
-  * Binding#eval
-
-    New method.
-
-  * Dir#each
-  * Dir#foreach
-
-    Return an enumerator if no block is given.
-
-  * Enumerable::Enumerator
-
-    New class for various enumeration defined by the enumerator library.
-
-  * Enumerable#each_slice
-  * Enumerable#each_cons
-  * Object#to_enum
-  * Object#enum_for
-
-    New methods for various enumeration defined by the enumerator library.
-
-  * Enumerable#count
-  * Enumerable#cycle
-  * Enumerable#drop
-  * Enumerable#drop_while
-  * Enumerable#find_index
-  * Enumerable#first
-  * Enumerable#group_by
-  * Enumerable#max_by
-  * Enumerable#min_by
-  * Enumerable#minmax
-  * Enumerable#minmax_by
-  * Enumerable#none?
-  * Enumerable#one?
-  * Enumerable#take
-  * Enumerable#take_while
-
-    New methods.
-
-  * Enumerable#find
-  * Enumerable#find_all
-  * Enumerable#partition
-  * Enumerable#reject
-  * Enumerable#select
-  * Enumerable#sort_by
-
-    Return an enumerator if no block is given.
-
-    Note that #map and #collect still return an array unlike Ruby 1.9
-    to keep compatibility.
-
-  * Enumerable#inject
-
-    Accepts a binary operator instead of a block.
-
-  * Enumerable#reduce
-
-    New alias to #inject.
-
-  * Hash#eql?
-  * Hash#hash
-  * Hash#==
-
-    Handle recursive data properly.
-
-  * Hash#delete_if
-  * Hash#each
-  * Hash#each_key
-  * Hash#each_pair
-  * Hash#each_value
-  * Hash#reject!
-  * Hash#select
-  * ENV.delete_if
-  * ENV.each
-  * ENV.each_key
-  * ENV.each_pair
-  * ENV.each_value
-  * ENV.reject!
-  * ENV.select
-
-    Return an enumerator if no block is given.
-
-  * GC.stress
-  * GC.stress=
-
-    New methods.
-
-  * Integer#ord
-  * Integer#odd?
-  * Integer#even?
-  * Integer#pred
-
-    New methods.
-
-  * Integer#downto
-  * Integer#times
-  * Integer#upto
-
-    Return an enumerator if no block is given.
-
-  * IO#each
-  * IO#each_line
-  * IO#each_byte
-  * IO.foreach
-  * ARGF.each
-  * ARGF.each_line
-  * ARGF.each_byte
-
-    Return an enumerator if no block is given.
-
-  * IO#bytes
-  * IO#chars
-  * IO#each_char
-  * IO#getbyte
-  * IO#lines
-  * IO#readbyte
-  * ARGF.bytes
-  * ARGF.chars
-  * ARGF.each_char
-  * ARGF.getbyte
-  * ARGF.lines
-  * ARGF.readbyte
-
-    New methods. 
-
-  * Method#name
-  * Method#owner
-  * Method#receiver
-  * UnboundMethod#name
-  * UnboundMethod#owner
-
-    New methods.
-
-  * Module#class_exec
-  * Module#module_exec
-
-    New methods.
-
-  * Numeric#step
-
-    Return an enumerator if no block is given.
-
-  * Object#instance_exec
-  * Object#tap
-
-    New methods.
-
-  * ObjectSpace.each_object
-
-    Return an enumerator if no block is given.
-
-  * Process.exec implemented.
+with all sufficient information, see the ChangeLog file or Redmine
+(e.g. <tt>https://bugs.ruby-lang.org/issues/$FEATURE_OR_BUG_NUMBER</tt>)
 
-  * Range#each
-  * Range#step
+== Changes since the 2.3.0 release
 
-    Return an enumerator if no block is given.
+=== Language changes
 
-  * Regexp.union accepts an array of patterns.
+* Multiple assignment in conditional expression is now allowed.
+  [Feature #10617]
 
-  * String#bytesize
+=== Core classes updates (outstanding ones only)
 
-    New method, returning the size in bytes. (alias length and size)
+* Array
 
-  * String#chars
-  * String#each_char
-  * String#partition
-  * String#rpartition
-  * String#start_with?
-  * String#end_with?
+  * Array#max and Array#min.  [Feature #12172]
+    This may cause a tiny incompatibility: if you redefine
+    Enumerable#max and call max to an Array, your redefinition will be
+    now ignored.  You should also redefine Array#max.
 
-    New methods.  These are $KCODE aware unlike #index, #rindex and
-    #include?.
+  * Array#sum  [Feature #12217]
+    This is different from Enumerable#sum in that Array#sum doesn't depend on
+    the definition of each method.
 
-  * String#each_byte
-  * String#each
-  * String#each_line
-  * String#gsub(pattern)
+* Comparable
 
-    Return an enumerator if no block is given.
+  * Comparable#clamp.  [Feature #10594]
 
-  * String#upto
+* Dir
 
-    An optional second argument is added to specify if the last value
-    should be included.
+  * Dir.empty?.  [Feature #10121]
 
-  * StopIteration
+* Enumerable
 
-    New exception class that causes Kernel#loop to stop iteration when
-    raised.
+  * Enumerable#sum  [Feature #12217]
+  * Enumerable#uniq  [Feature #11090]
 
-  * Struct#each
-  * Struct#each_pair
+* Enumerator::Lazy
 
-    Return an enumerator if no block is given.
+  * Enumerator::Lazy#uniq  [Feature #11090]
 
-  * Symbol#to_proc
+* File
 
-    New method.
+  * File.empty?.  [Feature #9969]
 
-  * __method__
+* Float
 
-    New global function that returns the name of the current method as
-    a Symbol.
+  * Float#ceil, Float#floor, and Float#truncate now take an optional
+    digits, as well as Float#round.  [Feature #12245]
 
-* enumerator
+* Hash
 
-  * Enumerator is now a built-in module.  The #next and #rewind
-    methods are implemented using the "generator" library.  Use with
-    care and be aware of the performance loss.
+  * Hash#transform_values and Hash#transform_values!  [Feature #12512]
 
-* ipaddr
+* Integer
 
-  * New methods
-    * IPAddr#<=>
-    * IPAddr#succ
+  * Integer#ceil, Integer#floor, and Integer#truncate now take an optional
+    digits, as well as Integer#round.  [Feature #12245]
 
-      IPAddr objects are now comparable and enumerable having these
-      methods.  This also means that it is possible to have a Range
-      object between two IPAddr objects.
+  * Fixnum and Bignum are unified into Integer  [Feature #12005]
 
-    * IPAddr#to_range
+  * Integer#digits for extracting columns of place-value notation [Feature #12447]
 
-      A new method to create a Range object for the (network) address.
+* Kernel
 
-  * Type coercion support
-    * IPAddr#&
-    * IPAddr#|
-    * IPAddr#==
-    * IPAddr#include?
+  * Kernel#clone now takes an optional keyword argument, freeze flag.
+    [Feature #12300]
 
-      These methods now accept a string or an integer instead of an
-      IPAddr object as the argument.
+* MatchData
 
-* net/smtp
+  * MatchData#named_captures [Feature #11999]
+  * MatchData#values_at supports named captures [Feature #9179]
 
-  * Support SSL/TLS.
+* Regexp
 
-* openssl
+  * Regexp#match? [Feature #8110]
+    This returns bool and doesn't save backref.
 
-  * New classes
-    * OpenSSL::PKey::EC
-    * OpenSSL::PKey::EC::Group
-    * OpenSSL::PKey::EC::Point
-    * OpenSSL::PKey::PKCS5
-    * OpenSSL::SSL::Session
+* Regexp/String: Updated Unicode version from 8.0.0 to 9.0.0 [Feature #12513]
 
-  * Documentation!
+* RubyVM::Env
 
-  * Various new methods (see documentation).
+  * RubyVM::Env was removed.
 
-  * Remove redundant module namespace in Cipher, Digest, PKCS7, PKCS12.
-    Compatibility classes are provided which will be removed in Ruby 1.9.
+* String
 
-* shellwords
+  * String#upcase, String#downcase, String#capitalize, String#swapcase and
+    their bang variants work for all of Unicode, and are no longer limited
+    to ASCII. Supported encodings are UTF-8, UTF-16BE/LE, UTF-32BE/LE, and
+    ISO-8859-1~16. Variations are available with options. See the documentation
+    of String#downcase for details. [Feature #10085]
 
-  * Add methods for escaping shell-unsafe characters:
-    * Shellwords.join
-    * Shellwords.escape
-    * Array#shelljoin
-    * String#shellescape
+  * String.new(capacity: size) [Feature #12024]
 
-  * Add shorthand methods:
-    * Shellwords.split (alias shellwords)
-    * String#shellsplit
+* Symbol
 
-* stringio
+  * Symbol#match now returns MatchData.  [Bug #11991]
 
-  * StringIO#getbyte
-  * StringIO#readbyte
+  * Symbol#upcase, Symbol#downcase, Symbol#capitalize, and Symbol#swapcase now
+    work for all of Unicode. See the documentation of String#downcase
+    for details. [Feature #10085]
 
-    New methods. (aliases for compatibility with 1.9)
+* Thread
 
-  * StringIO#each_char
-  * StringIO#chars
+  * Thread#report_on_exception and Thread.report_on_exception
+    [Feature #6647]
 
-    New methods.
+=== Stdlib updates (outstanding ones only)
 
-  * StringIO#each
-  * StringIO#each_line
-  * StringIO#each_byte
+* CSV
 
-    Return an enumerator if no block is given.
+  * Add a liberal_parsing option. [Feature #11839]
 
-* tempfile
+* Logger
 
-  * Tempfile.open and Tempfile.new now accept a suffix for the
-    temporary file to be created.  To specify a suffix, pass an array
-    of [basename, suffix] as the first argument.
+	* Allow specifying logger parameters in constructor such
+	  as level, progname, datetime_format, formatter. [Feature #12224]
+	* Add shift_period_suffix option. [Feature #10772]
 
-      Tempfile.open(['image', 'jpg']) { |tempfile| ... }
+* OpenSSL
 
-* tmpdir
+  * OpenSSL is extracted as a gem and the upstream has been migrated to
+    https://github.com/ruby/openssl. OpenSSL still remains as a default gem.
+    Refer to its History.md for the full release note. [Feature #9612]
 
-  * New method:
+* optparse
 
-    * Dir.mktmpdir
-
-* uri
-
-  * added LDAPS scheme.
-  * Change for RFC3986:
-    * FTP
-      * URI('ftp://example.com/foo').path #=> 'foo'
-      * URI('ftp://example.com/%2Ffoo').path #=> '/foo'
-      * URI::FTP.build([nil, 'example.com', nil, '/foo', 'i').to_s #=> 'ftp://example.com/%2Ffoo;type=i'
-    * URI merge
-      * URI('http://a/b/c/d;p?q').merge('?y') == URI('http://a/b/c/d;p?y')
-      * URI('http://a/b/c/d;p?q').merge('/./g') == URI('http://a/g')
-      * URI('http://a/b/c/d;p?q').merge('/../g') == URI('http://a/g')
-      * URI('http://a/b/c/d;p?q').merge('../../../g') == URI('http://a/g')
-      * URI('http://a/b/c/d;p?q').merge('../../../../g') == URI('http://a/g')
-
-* rss
-
-  * 0.1.6 -> 0.2.4
-
-  * Fix image module URI
-
-  * Atom support
-
-  * ITunes module support
-
-  * Slash module support
-
-  * content:encoded with RSS 2.0 support
-
-=== Interpreter Implementation
-
-* passing a block to a Proc [experimental]
-
-  This implementation in current shape is known to be buggy/broken,
-  especially with nested block invocation.  Take this as an
-  experimental feature.
-
-* stack trace
-
-  On non-SystemStackError exception, full stack trace is shown.
+  * Add an into option. [Feature #11191]
 
 === Compatibility issues (excluding feature bug fixes)
 
-* String#slice! had some unintentional bugs and they have been fixed
-  because either they disagreed with documentation or their respective
-  behavior of #slice.  Unfortunately, this causes some
-  incompatibilities in the following (somewhat rare) cases.
-
-  * #slice! no longer expands the array when an out-of-boundary value
-    is given.
-
-      # Ruby 1.8.6
-      a = [1,2]
-      a.slice!(4,0)   #=> nil
-      a               #=> [1,2,nil,nil]
-
-      # Ruby 1.8.7
-      a = [1,2]
-      a.slice!(4,0)   #=> nil
-      a               #=> [1,2]
-
-  * #slice! no longer raises an exception but returns nil when a
-    negative length or out-of-boundary negative position is given.
-
-      # Ruby 1.8.6
-      a = [1,2]
-      a.slice!(1,-1)  #=> (raises IndexError)
-      a.slice!(-5,1)  #=> (raises IndexError)
-
-      # Ruby 1.8.7
-      a = [1,2]
-      a.slice!(1,-1)  #=> nil
-      a.slice!(-5,1)  #=> nil
-
-* String#to_i, String#hex and String#oct no longer accept a sequence
-  of underscores (`__') as part of a number.
-
-    # Ruby 1.8.6
-    '1__0'.to_i     #=> 10
-    '1__0'.to_i(2)  #=> 2  # 0b10
-    '1__0'.oct      #=> 8  # 010
-    '1__0'.hex      #=> 16 # 0x10
-
-    # Ruby 1.8.7
-    '1__0'.to_i     #=> 1
-    '1__0'.to_i(2)  #=> 1
-    '1__0'.oct      #=> 1
-    '1__0'.hex      #=> 1
-
-  The old behavior was inconsistent with Ruby syntax and considered as
-  a bug.
-
-* date
-
-  * Date.parse
-
-    '##.##.##' (where each '#' is a digit) is now taken as 'YY.MM.DD'
-    instead of 'MM.DD.YY'.  While the change may confuse you, you can
-    always use Date.strptime() when you know what you are dealing
-    with.
-
-* stringio
-
-  * StringIO#each_byte
-
-    The return value changed from nil to self.  This is what the
-    document says and the same as each_line() does.
-
-* tempfile
-
-  * The file name format has changed.  No dots are included by default
-    in temporary file names any more.  See above for how to specify a
-    suffix.
-
-* uri
-
-  * See above for details.
-
-== Changes since the 1.8.5 release
-
-=== New platforms/build tools support
-
-* IA64 HP-UX
-
-* Visual C++ 8 SP1
-
-* autoconf 2.6x
-
-=== Global constants
-
-* RUBY_PATCHLEVEL
-
-  New constant since 1.8.5-p1.
-
-=== Library updates (outstanding ones only)
-
-* builtin classes
-
-  * New method: Kernel#instance_variable_defined?
-
-  * New method: Module#class_variable_defined?
-
-  * New feature: Dir::glob() can now take an array of glob patterns.
-
-* date
-
-  * Updated based on date2 4.0.3.
-
-* digest
-
-  * New internal APIs for C and Ruby.
-
-  * Support for autoloading.
-
-      require 'digest'
-
-      # autoloads digest/md5
-      md = Digest::MD5.digest("string")
-
-  * New digest class methods: file
-
-  * New digest instance methods: clone, reset, new, inspect,
-    digest_length (alias size or length), block_length()
-
-  * New library: digest/bubblebabble
-
-  * New function: Digest(name)
-
-* fileutils
-
-  * New option for FileUtils.cp_r(): :remove_destination
-
-* nkf
-
-  * Updated based on nkf as of 2007-01-28.
+* Array#sum and Enumerable#sum are implemented.  [Feature #12217]
+  Ruby itself has no compatibility problem because Ruby didn't have sum method
+  for arrays before Ruby 2.4.
+  However many third party gems, activesupport, facets, simple_stats, etc,
+  defines sum method.  These implementations are mostly compatible but
+  there are subtle differences.
+  Ruby's sum method should be mostly compatible but it is impossible to
+  be perfectly compatible with all of them.
+
+* Fixnum and Bignum are unified into Integer  [Feature #12005]
+  Fixnum class and Bignum class is removed.
+  Integer class is changed from abstract class to concrete class.
+  For example, 0 is an instance of Integer: 0.class returns Integer.
+  The constants Fixnum and Bignum is bound to Integer.
+  So obj.kind_of?(Fixnum) works as obj.kind_of?(Integer).
+  At C-level, Fixnum object and Bignum object should be distinguished by
+  FIXNUM_P(obj) and RB_TYPE_P(obj, T_BIGNUM).
+  RUBY_INTEGER_UNIFICATION can be used to detect this feature.
+  ruby-2.4.0-preview1 (temporally) removes rb_cFixnum and rb_cBignum
+  to check the effect of incompatibility.
+  (rb_cFixnum and rb_cBignum may be defined as rb_cInteger later if
+  compilation failure of extension library is too big problem.)
+
+* String/Symbol#upcase/downcase/swapcase/capitalize(!) now work for all of
+  Unicode, not only for ASCII. [Feature #10085]
+  No change is needed if the data is in ASCII anyway or if the limitation
+  to ASCII was only tolerated while waiting for a more extensive implementation.
+  A change (using the :ascii option) is needed in cases where Unicode data
+  is processed, but the operation has to be limited to ASCII only.
+  A good example of this are internationalized domain names.
+
+=== Stdlib compatibility issues (excluding feature bug fixes)
+
+* DateTime
+
+  * DateTime#to_time now preserves timezone.  [Bug #12189]
+
+* Time
+
+  * Time#to_time now preserves timezone.  [Bug #12271]
 
 * thread
 
-  * Replaced with much faster mutex implementation in C.  The former
-    implementation, which is slow but considered to be stable, is
-    available with a configure option `--disable-fastthread'.
-
-* tk
-
-  * Updated Tile extension support based on Tile 0.7.8.
-
-  * Support --without-X11 configure option for non-X11 versions of
-    Tcl/Tk (e.g. Tcl/Tk Aqua).
-
-  * New sample script: irbtkw.rbw -- IRB on Ruby/Tk. It has no trouble
-    about STDIN blocking on Windows.
-
-* webrick
-
-  * New method: WEBrick::Cookie.parse_set_cookies()
-
-=== Compatibility issues (excluding feature bug fixes)
-
-* builtin classes
-
-  * String#intern now raises SecurityError when $SAFE level is greater
-    than zero.
-
-* date
+  * the extension library is removed.  Till 2.0 it was a pure ruby script
+    "thread.rb", which has precedence over "thread.so", and has been provided
+    in $LOADED_FEATURES since 2.1.
 
-  * Time#to_date and Time#to_datetime are added as private methods.
-    They cause name conflict error in ActiveSupport 1.4.1 and prior,
-    which comes with Rails 1.2.2 and prior.  Updating ActiveSupport
-    and/or Rails to the latest versions fixes the problem.
+* Tk
+  * Tk is removed from stdlib.  [Feature #8539]
+    https://github.com/ruby/tk is the new upstream.
 
-* digest
+=== C API updates
 
-  * The constructor does no longer take an initial string to feed.
-    The following examples show how to migrate:
+* ruby_show_version() will no longer exits the process, if
+  RUBY_SHOW_COPYRIGHT_TO_DIE is set to 0.  This will be the default in
+  the future.
 
-      # Before
-      md = Digest::MD5.new("string")
-      # After (works with any version)
-      md = Digest::MD5.new.update("string")
-        
-      # Before
-      hd = Digest::MD5.new("string").hexdigest
-      # After (works with any version)
-      hd = Digest::MD5.hexdigest("string")
+=== Supported platform changes
 
-* fileutils
+* FreeBSD < 4 is no longer supported
 
-  * A minor implementation change breaks Rake <=0.7.1.
-    Updating Rake to 0.7.2 or higher fixes the problem.
+=== Implementation improvements
 
-* tk
+* In some condition, `[x, y].max` and `[x, y].min` are optimized
+  so that a temporal array is not created.  The concrete condition is
+  an implementation detail: currently, the array literal must have no
+  splat, must have at least one expression but literal, the length must
+  be <= 0x100, and Array#max and min must not be redefined.  It will work
+  in most casual and real-life use case where it is written with intent
+  to `Math.max(x, y)`.
 
-  * Tk::X_Scrollable (Y_Scrollable) is renamed to Tk::XScrollable
-    (YScrollable). Tk::X_Scrollable (Y_Scrollable) is still available,
-    but it is an alias name.
+* Thread deadlock detection now shows their backtrace and dependency. [Feature #8214]
diff --git a/README b/README
deleted file mode 100644
index 1b79781367..0000000000
--- a/README
+++ /dev/null
@@ -1,118 +0,0 @@
-* What's Ruby
-
-Ruby is the interpreted scripting language for quick and
-easy object-oriented programming.  It has many features to
-process text files and to do system management tasks (as in
-Perl).  It is simple, straight-forward, and extensible.
-
-
-* Features of Ruby
-
-  + Simple Syntax
-  + *Normal* Object-Oriented features(ex. class, method calls)
-  + *Advanced* Object-Oriented features(ex. Mix-in, Singleton-method)
-  + Operator Overloading
-  + Exception Handling
-  + Iterators and Closures
-  + Garbage Collection
-  + Dynamic Loading of Object files(on some architecture)
-  + Highly Portable(works on many UNIX machines, and on DOS,
-    Windows, Mac, BeOS etc.)
-
-
-* How to get Ruby
-
-The Ruby distribution files can be found in the following FTP site:
-
-  ftp://ftp.ruby-lang.org/pub/ruby/
-
-The latest source code of this version series can be checked out
-through SVN with the following command:
-
-  $ svn co http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_8/
-
-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
-
-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/
-
-
-* 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 <ruby-talk-ctl@ruby-lang.org>.
-
-
-* How to compile and install
-
-This is what you need to do to compile and install Ruby:
-
-  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 optflags=.. and warnflags=.. as necessary
-     to override them.
-
-  3. Edit defines.h if you need.  Usually this step will not be needed.
-
-  4. 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 does not allow dynamic loading),
-     remove comment mark from the line "#option nodynamic" in
-     ext/Setup.
-
-  5. Run make.
-
-  6. Optionally, run 'make test' to check whether the compiled Ruby
-     interpreter works well.  If you see the message "test succeeded",
-     your ruby works as it should (hopefully).
-
-  7. Run 'make install'
-
-     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.
-
-
-* Copying
-
-See the file COPYING.
-
-
-* The Author
-
-Feel free to send comments and bug reports to the author.  Here is the 
-author's latest mail address:
-
-  matz@netlab.jp
-
--------------------------------------------------------
-created at: Thu Aug  3 11:57:36 JST 1995
-Local variables:
-mode: indented-text
-end:
diff --git a/README.EXT b/README.EXT
index 637b19d25b..48b8d964c4 100644
--- a/README.EXT
+++ b/README.EXT
@@ -1,1164 +1 @@
-.\" README.EXT -  -*- Text -*- created at: Mon Aug  7 16:45:54 JST 1995
-
-This document explains how to make extension libraries for Ruby.
-
-1. 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.
-
-
-1.1 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_FIXNUM	Fixnum(31bit integer)
-	T_HASH		associative array
-	T_STRUCT	(Ruby) structure
-	T_BIGNUM	multi precision integer
-	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
-	T_MATCH
-	T_UNDEF
-	T_VARMAP
-	T_SCOPE
-	T_NODE
-
-Most of the types are represented by C structures.
-
-1.2 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)
-
-1.3 Convert VALUE into C data
-
-The data for type T_NIL, T_FALSE, T_TRUE are nil, true, false
-respectively.  They are singletons for the data type.
-
-The T_FIXNUM data is a 31bit length fixed integer (63bit length on
-some machines), which can be converted to a C integer by using the
-FIX2INT() macro.  There is also NUM2INT() which converts any Ruby
-numbers into C integers.  The NUM2INT() macro 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.
-
-In version 1.7 or later it is recommended that you use the new 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.
-
-In version 1.6 or earlier, STR2CSTR() was used to do the same thing
-but now it is deprecated in version 1.7, because STR2CSTR() has a risk
-of a dangling pointer problem in the to_str() impliclit conversion.
-
-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".
-
-For example, `RSTRING(str)->len' is the way to get the size of the
-Ruby String object.  The allocated region can be accessed by
-`RSTRING(str)->ptr'.  For arrays, use `RARRAY(ary)->len' and
-`RARRAY(ary)->ptr' respectively.
-
-Notice: Do not change the value of the structure directly, unless you
-are responsible for the result.  This ends up being the cause of interesting
-bugs.
-
-1.4 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.
-
-1.5 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)
-
-    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)
-
-    Creates a new tainted Ruby string from a C string.
-
-  rb_str_cat(VALUE str, const char *ptr, long len)
-
-    Appends len bytes of data from ptr to the Ruby string.
-
- Array functions
-
-  rb_ary_new()
-
-    Creates an array with no elements.
-
-  rb_ary_new2(long len)
-
-    Creates an array with no elements, allocating internal buffer
-    for len elements.
-
-  rb_ary_new3(long n, ...)
-
-    Creates an n-element array from the arguments.
-
-  rb_ary_new4(long n, VALUE *elts)
-
-    Creates an n-element array from a C array.
-
-  rb_ary_push(VALUE ary, VALUE val)
-  rb_ary_pop(VALUE ary)
-  rb_ary_shift(VALUE ary)
-  rb_ary_unshift(VALUE ary, VALUE val)
-
-    Array operations.  The first argument to each functions must be an 
-    array.  They may dump core if other types are given.
-
-2. Extending Ruby with C
-
-2.1 Addding 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
-
-2.1.1 Class/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)
-
-2.1.2 Method/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 two more functions to define methods.  One is to define
-private methods:
-
-  void rb_define_private_method(VALUE klass, const char *name, 
-			        VALUE (*func)(), int argc)
-
-The other is to define 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)
-
-Oh, 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 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 have to take the klass as the argument and return a newly
-allocated instance.  This instance should be empty as possible,
-without any expensive (including external) resources.
-
-2.1.3 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.
-
-2.2 Use Ruby features from C
-
-There are several ways to invoke Ruby's features from C code.
-
-2.2.1 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.
-
-2.2.2 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
-
-You can get the ID value from a string within C code by using
-
-  rb_intern(const char *name)
-
-You can retrieve ID from Ruby object (Symbol or String) given as an
-argument by using
-
-  rb_to_id(VALUE symbol)
-
-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)
-
-2.2.3 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.
-
-2.2.4 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 2.1.3 for defining new constant.
-
-3. Information sharing between Ruby and C
-
-3.1 Ruby constants that C can be accessed from C
-
-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.
-
-3.2 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(constchar *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().
-
-  void rb_define_virtual_variable(const char *name,
-				  VALUE (*getter)(), void (*setter)())
-
-This function defines a Ruby global variable without a corresponding C
-variable.  The value of the variable will be set/get only by hooks.
-
-The prototypes of the getter and setter functions are as follows:
-
-  (*getter)(ID id, void *data, struct global_entry* entry);
-  (*setter)(VALUE val, ID id, void *data, struct global_entry* entry);
-
-3.3 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, ptr)
-
-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.
-
-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. 
-
-4. 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.
-
-(1) make the directory
-
-  % mkdir ext/dbm
-
-Make a directory for the extension library under ext directory.
-
-(2) design the library
-
-You need to design the library features, before making it.
-
-(3) write 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.
-
-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.
-
---
-Init_dbm()
-{
-    /* 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(obj, keystr)
-    VALUE obj, 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(argc, argv, klass)
-    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.  For example, "11" means that the method requires at least one
-argument, and at most receives two arguments.
-
-Methods with an arbitrary number of arguments can receive arguments
-by Ruby's array, like this:
-
---
-static VALUE
-fdbm_indexes(obj, args)
-    VALUE obj, 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)
-
-(4) 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_library(lib, func): check whether library containing function exists.
-  have_func(func, header): check whether function exists
-  have_header(header): check whether header file exists
-  create_makefile(target): generate Makefile
-
-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.
-
-(5) 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.
-
-(6) 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.
-
-(7) 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.
-
-(8) 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.
-
-(9) 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
-  error.c
-  eval.c
-  gc.c
-  object.c
-  parse.y
-  variable.c
-
-utility functions
-
-  dln.c
-  regex.c
-  st.c
-  util.c
-
-ruby interpreter implementation
-
-  dmyext.c
-  inits.c
-  main.c
-  ruby.c
-  version.c
-
-class library
-
-  array.c
-  bignum.c
-  compar.c
-  dir.c
-  enum.c
-  file.c
-  hash.c
-  io.c
-  marshal.c
-  math.c
-  numeric.c
-  pack.c
-  prec.c
-  process.c
-  random.c
-  range.c
-  re.c
-  signal.c
-  sprintf.c
-  string.c
-  struct.c
-  time.c
-
-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
-
-const: nil object
-
- Qtrue
-
-const: true object(default true value)
-
- Qfalse
-
-const: 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)
-FIXNUM_P(value)
-NIL_P(value)
-void Check_Type(VALUE value, int type)
-void Check_SafeStr(VALUE value)
-
-** Data type conversion
-
-FIX2INT(value)
-INT2FIX(i)
-NUM2INT(value)
-INT2NUM(i)
-NUM2DBL(value)
-rb_float_new(f)
-StringValue(value)
-StringValuePtr(value)
-StringValueCStr(value)
-rb_str_new2(s)
-
-** defining class/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, argv.  The fmt is the format string for
-the arguments, such as "12" for 1 non-optional argument, 2 optional
-arguments.  If `*' appears at the end of fmt, it means the rest of
-the arguments are assigned to the corresponding variable, packed in
-an array.
-
-** Invoking Ruby method
-
- VALUE rb_funcall(VALUE recv, ID mid, int narg, ...)
-
-Invokes a method.  To retrieve mid from a method name, use rb_intern().
-
- VALUE rb_funcall2(VALUE recv, ID mid, int argc, VALUE *argv)
-
-Invokes a method, passing arguments by an array of values.
-
- VALUE rb_eval_string(const char *str)
-
-Compiles and executes the string as a Ruby program.
-
- ID rb_intern(const char *name)
-
-Returns ID corresponding to the name.
-
- char *rb_id2name(ID id)
-
-Returns the name corresponding ID.
-
- char *rb_class2name(VALUE klass)
-
-Returns the name of the class.
-
- int rb_respond_to(VALUE object, ID id)
-
-Returns true if the object responds to the message specified by id.
-
-** Instance Variables
-
- VALUE rb_iv_get(VALUE obj, const char *name)
-
-Retrieve the value of the instance variable.  If the name is not
-prefixed by `@', that variable shall be inaccessible from Ruby.
-
- VALUE rb_iv_set(VALUE obj, const char *name, VALUE val)
-
-Sets the value of the instance variable.
-
-** Control Structure
-
- VALUE rb_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.
- 
- VALUE rb_yield(VALUE val)
-
-Evaluates the block with value val.
-
- VALUE rb_rescue(VALUE (*func1)(), void *arg1, VALUE (*func2)(), void *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)(), void *arg1, void (*func2)(), void *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.
-
-** 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.
-
-** 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_t events)
-
-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, NODE *node,
- 				      VALUE self, ID id, VALUE klass)
-
- int rb_remove_event_hook(rb_event_hook_func_t func)
-
-Removes the specified hook function.
-
-Appendix C. Functions Available in extconf.rb
-
-These functions are available in extconf.rb:
-
- have_macro(macro, headers)
-
-Checks whether macro is defined with header.  Returns true if the macro
-is defined.
-
- have_library(lib, func)
-
-Checks whether the library exists, containing the specified function.
-Returns true if the library exists.
-
- find_library(lib, func, path...)
-
-Checks whether a library which contains the specified function exists in
-path.  Returns true if the library exists.
-
- have_func(func, header)
-
-Checks whether func exists with header.  Returns true if the function
-exists.  To check functions in an additional library, you need to
-check that library first using have_library().
-
- have_var(var, header)
-
-Checks whether var exists with header.  Returns true if the variable
-exists.  To check variables in an additional library, you need to
-check that library first using have_library().
-
- have_header(header)
-
-Checks whether header exists.  Returns true if the header file exists.
-
- find_header(header, path...)
-
-Checks whether header exists in path.  Returns true if the header file
-exists.
-
- have_struct_member(type, member, header)
-
-Checks whether type has member with header.  Returns true if the type
-is defined and has the member.
-
- have_type(type, header, opt)
-
-Checks whether type is defined with header.  Returns true if the type
-is defined.
-
- check_sizeof(type, header)
-
-Checks the size of type in char with header.  Returns the size if the
-type is defined, otherwise nil.
-
- create_makefile(target)
-
-Generates the Makefile for the extension library.  If you don't invoke
-this method, the compilation will not be done.
-
- find_executable(bin, path)
-
-Finds command in path, which is File::PATH_SEPARATOR-separated list of
-directories.  If path is nil or omitted, environment varialbe PATH
-will be used.  Returns the path name of the command if it is found,
-otherwise nil.
-
- with_config(withval[, default=nil])
-
-Parses the command line options and returns the value specified by
---with-<withval>.
-
- enable_config(config, *defaults)
- disable_config(config, *defaults)
-
-Parses the command line options for boolean.  Returns true if
---enable-<config> is given, or false if --disable-<config> is given.
-Otherwise, yields defaults to the given block and returns the result
-if it is called with a block, or returns defaults.
-
- dir_config(target[, default_dir])
- dir_config(target[, default_include, default_lib])
-
-Parses the command line options and adds the directories specified by
---with-<target>-dir, --with-<target>-include, and/or --with-<target>-lib
-to $CFLAGS and/or $LDFLAGS.  --with-<target>-dir=/path is equivalent to
---with-<target>-include=/path/include --with-<target>-lib=/path/lib.
-Returns an array of the added directories ([include_dir, lib_dir]).
-
- pkg_config(pkg)
-
-Obtains the information for pkg by pkg-config command.  The actual
-command name can be overriden by --with-pkg-config command line
-option.
-
-/*
- * Local variables:
- * fill-column: 70
- * end:
- */
+Moved to doc/extension.rdoc
diff --git a/README.EXT.ja b/README.EXT.ja
index 73425c2cdb..f884ecbb0e 100644
--- a/README.EXT.ja
+++ b/README.EXT.ja
@@ -1,1264 +1 @@
-.\" README.EXT.ja -  -*- Text -*- created at: Mon Aug  7 16:45:54 JST 1995
-
-Ruby�γ�ĥ�饤�֥��κ�������������ޤ���
-
-1�������μ�
-
-C���ѿ��ˤϷ������ꡤ�ǡ����ˤϷ�������ޤ��󡥤Ǥ����顤��
-�Ȥ��Хݥ��󥿤�int���ѿ�����������ȡ������ͤ������Ȥ��Ƽ�
-�갷���ޤ����դ�Ruby���ѿ��ˤϷ����ʤ����ǡ����˷��������
-�������ΰ㤤�Τ��ᡤC��Ruby����ߤ��Ѵ����ʤ���С����ߤ���
-�ǡ����򥢥������Ǥ��ޤ���
-
-Ruby�Υǡ�����VALUE�Ȥ���C�η���ɽ������ޤ���VALUE���Υǡ�
-���Ϥ��Υǡ��������פ�ʬ���ΤäƤ��ޤ������Υǡ��������פ�
-�����Τϥǡ���(���֥�������)�μºݤι�¤���̣���Ƥ��ơ�Ruby
-�Υ��饹�ȤϤޤ���ä���ΤǤ���
-
-VALUE����C�ˤȤäư�̣�Τ���ǡ�������Ф�����ˤ�
-
- (1) VALUE�Υǡ��������פ��Τ�
- (2) VALUE��C�Υǡ������Ѵ�����
-
-��ξ����ɬ�פǤ���(1)��˺���ȴְ�ä��ǡ������Ѵ����Ԥ��
-�ơ��ǰ��ץ�����बcore dump���ޤ���
-
-1.1 �ǡ���������
-
-Ruby�ˤϥ桼�����Ȥ���ǽ���Τ���ʲ��Υ����פ�����ޤ���
-
-	T_NIL		nil
-	T_OBJECT	�̾�Υ��֥�������
-	T_CLASS		���饹
-	T_MODULE	�⥸�塼��
-	T_FLOAT		��ư��������
-	T_STRING	ʸ����
-	T_REGEXP	����ɽ��
-	T_ARRAY		����
-	T_FIXNUM	Fixnum(31bitĹ����)
-	T_HASH		Ϣ������
-	T_STRUCT	(Ruby��)��¤��
-	T_BIGNUM	¿��Ĺ����
-	T_FILE		������
-	T_TRUE		��
-	T_FALSE		��
-	T_DATA		�ǡ���
-	T_SYMBOL	����ܥ�
-
-����¾�����������Ѥ���Ƥ���ʲ��Υ����פ�����ޤ���
-
-	T_ICLASS
-	T_MATCH
-	T_UNDEF
-	T_VARMAP
-	T_SCOPE
-	T_NODE
-
-�ۤȤ�ɤΥ����פ�C�ι�¤�ΤǼ�������Ƥ��ޤ���
-
-1.2 VALUE�Υǡ��������פ�����å�����
-
-ruby.h�Ǥ�TYPE()�Ȥ����ޥ������������Ƥ��ơ�VALUE�Υǡ���
-�����פ��Τ뤳�Ȥ�����ޤ���TYPE()�ޥ����Ͼ�ǾҲ𤷤�T_XXXX
-�η�����������֤��ޤ���VALUE�Υǡ��������פ˱����ƽ�������
-���ˤϡ�TYPE()���ͤ�ʬ�����뤳�Ȥˤʤ�ޤ���
-
-  switch (TYPE(obj)) {
-    case T_FIXNUM:
-      /* FIXNUM�ν��� */
-      break;
-    case T_STRING:
-      /* ʸ����ν��� */
-      break;
-    case T_ARRAY:
-      /* ����ν��� */
-      break;
-    default:
-      /* �㳰��ȯ�������� */
-      rb_raise(rb_eTypeError, "not valid value");
-      break;
-  }
-
-����ȥǡ��������פ�����å����ơ��������ʤ�����㳰��ȯ����
-��ؿ����Ѱդ���Ƥ��ޤ���
-
-  void Check_Type(VALUE value, int type)
-
-���δؿ���value��type��̵����С��㳰��ȯ�������ޤ���������
-����Ϳ����줿VALUE�Υǡ��������פ����������ɤ��������å���
-�뤿��ˤϡ����δؿ���Ȥ��ޤ���
-
-FIXNUM��NIL�˴ؤ��ƤϤ���®��Ƚ�̥ޥ������Ѱդ���Ƥ��ޤ���
-
-  FIXNUM_P(obj)
-  NIL_P(obj)
-
-1.3 VALUE��C�Υǡ������Ѵ�����
-
-�ǡ��������פ�T_NIL, T_FALSE, T_TRUE�Ǥ�������ǡ����Ϥ��줾
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-�פΥ����å�̵���ǻȤ��ޤ�(�������Ѵ��Ǥ��ʤ����ˤ��㳰��
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-
-char* ����Ф���硢version 1.6 �����Ǥϡ�STR2CSTR()�פ�
-�����ޥ�����ȤäƤ��ޤ������������ to_str() �ˤ����ۤ�
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- �Ǥ���в��⤻���������Ǥʤ���� var �� var.to_str() �η�̤�
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-���ˤ������)�Ȥ���̾�����󶡤���Ƥ��ޤ�(��: RSTRING())��
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-
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-  * FIXNUM�ξ��
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-    1bit�����եȤ��ơ�LSB��Ω�Ƥ롥
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-
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-		        VALUE (*func)(), int argc)
-
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-
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---
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-}
---
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-{
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-��ά�Ǥ�������ο�����3ʸ���ܤ��б�������̵꤬�����ޤ�ΰ�
-�������뤫�ɤ����򼨤�"*"�Ǥ���2ʸ���ܤ�3ʸ���ܤϾ�ά�Ǥ���
-����dbm.c����Ǥϡ��ե����ޥåȤ�"11"�Ǥ����顤�����Ϻ���1��
-�ǡ�2�Ĥޤǵ������Ȥ�����̣�ˤʤ�ޤ�����ά����Ƥ������
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-
-Ruby������ǰ������������Τ�indexes������ޤ��������Ϥ�
-���Ǥ���
-
---
-static VALUE
-fdbm_indexes(obj, args)
-    VALUE obj, args;
-{
-	:
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---
-
-��1������self����2������Ruby������Ǥ���
-
-** ���ջ���
-
-Ruby�ȶ�ͭ�Ϥ��ʤ���Ruby�Υ��֥������Ȥ��Ǽ�����ǽ���Τ���
-C������ѿ��ϰʲ��δؿ���Ȥä�Ruby���󥿥ץ꥿���ѿ���¸��
-�򶵤��Ƥ����Ƥ����������Ǥʤ���GC�ǥȥ�֥�򵯤����ޤ���
-
-  void rb_global_variable(VALUE *var)
-
-(4) extconf.rb���Ѱդ���
-
-Makefile������ο����ˤʤ�extconf.rb�Ȥ����ե��������
-�ޤ���extconf.rb�ϥ饤�֥��Υ���ѥ����ɬ�פʾ��Υ�����
-���ʤɤ�Ԥ����Ȥ���Ū�Ǥ����ޤ���
-
-  require 'mkmf'
-
-��extconf.rb����Ƭ���֤��ޤ���extconf.rb����Ǥϰʲ���Ruby��
-����Ȥ����Ȥ�����ޤ���
-
-  have_library(lib, func): �饤�֥���¸�ߥ����å�
-  have_func(func, header): �ؿ���¸�ߥ����å�
-  have_header(header): �إå��ե������¸�ߥ����å�
-  create_makefile(target): Makefile������
-
-�ʲ����ѿ���Ȥ����Ȥ��Ǥ��ޤ���
-
-  $CFLAGS: ����ѥ�������ɲ�Ū�˻��ꤹ��ե饰(-O�ʤ�)
-  $CPPFLAGS: �ץ�ץ����å����ɲ�Ū�˻��ꤹ��ե饰(-I��-D�ʤ�)
-  $LDFLAGS: ��󥯻����ɲ�Ū�˻��ꤹ��ե饰(-L�ʤ�)
-  $objs: ��󥯤���륪�֥������ȥե�����̾�Υꥹ��
-
-���֥������ȥե�����Υꥹ�Ȥϡ��̾�ϥ������ե�����򸡺���
-�Ƽ�ưŪ����������ޤ�����make������ǥ���������������褦��
-��������Ū�˻��ꤹ��ɬ�פ�����ޤ���
-
-�饤�֥��򥳥�ѥ��뤹���郎·�鷺�����Υ饤�֥��򥳥�
-�ѥ��뤷�ʤ����ˤ�create_makefile��ƤФʤ����Makefile����
-�����줺������ѥ����Ԥ��ޤ���
-
-(5) depend���Ѱդ���
-
-�⤷���ǥ��쥯�ȥ��depend�Ȥ����ե����뤬¸�ߤ���С�
-Makefile����¸�ط�������å����Ƥ���ޤ���
-
-  % gcc -MM *.c > depend
-
-�ʤɤǺ�뤳�Ȥ�����ޤ������ä�»��̵���Ǥ��礦��
-
-(6) Makefile����������
-
-Makefile��ºݤ��������뤿��ˤ�
-
-  ruby extconf.rb
-
-�Ȥ��ޤ���extconf.rb�� require 'mkmf' �ιԤ��ʤ����ˤϥ��顼
-�ˤʤ�ޤ��Τǡ��������ɲä���
-
-  ruby -r mkmf extconf.rb
-
-�Ȥ��Ƥ���������
-
-site_ruby �ǥ��쥯�ȥ�Ǥʤ���
-vendor_ruby �ǥ��쥯�ȥ�˥��󥹥ȡ��뤹����ˤ�
-�ʲ��Τ褦�� --vendor ���ץ�����ä��Ƥ���������
-
-  ruby extconf.rb --vendor
-
-�ǥ��쥯�ȥ��ext�ʲ����Ѱդ������ˤ�Ruby���Τ�make�λ���
-��ưŪ��Makefile����������ޤ��Τǡ����Υ��ƥåפ����פǤ���
-
-(7) make����
-
-ưŪ��󥯥饤�֥�������������ˤϤ��ξ��make���Ƥ�����
-����ɬ�פǤ���� make install �ǥ��󥹥ȡ��뤵��ޤ���
-
-ext�ʲ��˥ǥ��쥯�ȥ���Ѱդ������ϡ�Ruby�Υǥ��쥯�ȥ��
-make��¹Ԥ����Makefile����������make��ɬ�פˤ�äƤϤ��Υ�
-���塼���Ruby�ؤΥ�󥯤ޤǼ�ưŪ�˼¹Ԥ��Ƥ���ޤ���
-extconf.rb��񤭴�����ʤɤ���Makefile�κ�������ɬ�פʻ��Ϥ�
-��Ruby�ǥ��쥯�ȥ��make���Ƥ���������
-
-��ĥ�饤�֥���make install��Ruby�饤�֥��Υǥ��쥯�ȥ��
-���˥��ԡ�����ޤ����⤷��ĥ�饤�֥��ȶ�Ĵ���ƻȤ�Ruby�ǵ�
-�Ҥ��줿�ץ�����ब���ꡤRuby�饤�֥����֤��������ˤϡ�
-��ĥ�饤�֥���ѤΥǥ��쥯�ȥ�β��� lib �Ȥ����ǥ��쥯�ȥ�
-���ꡤ������ ��ĥ�� .rb �Υե�������֤��Ƥ�����Ʊ���˥���
-���ȡ��뤵��ޤ���
-
-(8) �ǥХå�
-
-�ޤ����ǥХå����ʤ���ư���ʤ��Ǥ��礦�͡�ext/Setup�˥ǥ���
-���ȥ�̾��񤯤���Ū�˥�󥯤���ΤǥǥХå����Ȥ���褦�ˤ�
-��ޤ�������ʬ����ѥ��뤬�٤��ʤ�ޤ����ɡ�
-
-(9) �Ǥ�������
-
-��Ϥ��ä���Ȥ��ʤꡤ������������ʤꡤ���ʤꡤ����ͳ�ˤ�
-�Ȥ�����������Ruby�κ�Ԥϳ�ĥ�饤�֥��˴ؤ��ư��ڤθ�����
-��ĥ���ޤ���
-
-Appendix A. Ruby�Υ����������ɤ�ʬ��
-
-Ruby�Υ������Ϥ����Ĥ���ʬ�ह�뤳�Ȥ�����ޤ������Τ�������
-���饤�֥�����ʬ�ϴ���Ū�˳�ĥ�饤�֥���Ʊ��������ˤʤ�
-�Ƥ��ޤ��������Υ������Ϻ��ޤǤ������ǤۤȤ������Ǥ����
-�פ��ޤ���
-
-Ruby����Υ���
-
-  class.c
-  error.c
-  eval.c
-  gc.c
-  object.c
-  parse.y
-  variable.c
-
-�桼�ƥ���ƥ��ؿ�
-
-  dln.c
-  regex.c
-  st.c
-  util.c
-
-Ruby���ޥ�ɤμ���
-
-  dmyext.c
-  inits.c
-  main.c
-  ruby.c
-  version.c
-
-���饹�饤�֥��
-
-  array.c
-  bignum.c
-  compar.c
-  dir.c
-  enum.c
-  file.c
-  hash.c
-  io.c
-  marshal.c
-  math.c
-  numeric.c
-  pack.c
-  prec.c
-  process.c
-  random.c
-  range.c
-  re.c
-  signal.c
-  sprintf.c
-  string.c
-  struct.c
-  time.c
-
-Appendix B. ��ĥ�Ѵؿ���ե����
-
-C���줫��Ruby�ε�ǽ�����Ѥ���API�ϰʲ����̤�Ǥ��롥
-
-** ��
-
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-  �ΤǤ��롥VALUE���򤳤��˥��㥹�Ȥ��뤿���R�ǻϤޤ빽¤��
-  ̾��������ʸ���ˤ���̾���Υޥ������Ѱդ���Ƥ��롥
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-
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-
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-
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-  �Υݥ��󥿤�Ruby���饢����������ʤ��ʤä�����free�ǻ��ꤷ��
-  �ؿ����ƤФ�롥�ޤ������Υݥ��󥿤λؤ��ǡ�����¾��Ruby����
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-
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-
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-
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-
-VALUE rb_define_class_under(VALUE module, const char *name, VALUE super)
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-  ����Ȥ���������롥
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-  read only�Ǥ��뤳�Ȱʳ���rb_define_variable()��Ʊ����
-
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-
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-
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-  ����������Ϳ�����롥
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-rb_define_private_method(VALUE klass, const char *name, VALUE (*func)(), int argc)
-
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-
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-
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-
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-  �ߤ��ѿ��ؤΥݥ��󥿤�, �����������Ǥ������ѿ��˳�Ǽ����롥
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-  ���ѿ��� Ruby�ץ�����फ�饢�������Ǥ��ʤ��ֱ��줿�ץ���
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-
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-
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-
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-
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-have_macro(macro, headers)
-
-  �إå��ե�����header�򥤥󥯥롼�ɤ��ƥޥ���macro�������
-  ��Ƥ��뤫�ɤ��������å����롥�ޥ������������Ƥ����true
-  ���֤���
-
-have_library(lib, func)
-
-  �ؿ�func��������Ƥ���饤�֥��lib��¸�ߤ�����å����롥
-  �饤�֥�꤬¸�ߤ������true���֤���
-
-find_library(lib, func, path...)
-
-  �ؿ�func��������Ƥ���饤�֥��lib��¸�ߤ� -Lpath ���ɲ�
-  ���ʤ�������å����롥�饤�֥�꤬���դ��ä�����true���֤���
-
-have_func(func, header)
-
-  �إå��ե�����header�򥤥󥯥롼�ɤ��ƴؿ�func��¸�ߤ������
-  �����롥func��ɸ��Ǥϥ�󥯤���ʤ��饤�֥����Τ�ΤǤ�
-  ����ˤ����have_library�Ǥ��Υ饤�֥�������å����Ƥ���
-  �����ؿ���¸�ߤ����true���֤���
-
-have_var(var, header)
-
-  �إå��ե�����header�򥤥󥯥롼�ɤ����ѿ�var��¸�ߤ������
-  �����롥var��ɸ��Ǥϥ�󥯤���ʤ��饤�֥����Τ�ΤǤ�
-  ����ˤ����have_library�Ǥ��Υ饤�֥�������å����Ƥ���
-  �����ѿ���¸�ߤ����true���֤���
-
-have_header(header)
-
-  �إå��ե������¸�ߤ�����å����롥�إå��ե����뤬¸�ߤ�
-  ���true���֤���
-
-find_header(header, path...)
-
-  �إå��ե�����header��¸�ߤ� -Ipath ���ɲä��ʤ�������å�
-  ���롥�إå��ե����뤬���դ��ä�����true���֤���
-
-have_struct_member(type, member, header)
-
-  �إå��ե�����header�򥤥󥯥롼�ɤ��Ʒ�type�˥���member
-  ��¸�ߤ��뤫������å����롥type���������Ƥ��ơ�member��
-  ���Ĥ����true���֤���
-
-have_type(type, header, opt)
-
-  �إå��ե�����header�򥤥󥯥롼�ɤ��Ʒ�type��¸�ߤ��뤫��
-  �����å����롥type���������Ƥ����true���֤���
-
-check_sizeof(type, header)
-
-  �إå��ե�����header�򥤥󥯥롼�ɤ��Ʒ�type��charñ�̥���
-  ����Ĵ�٤롥type���������Ƥ�������Υ��������֤��������
-  ��Ƥ��ʤ��Ȥ���nil���֤���
-
-create_makefile(target)
-
-  ��ĥ�饤�֥���Ѥ�Makefile���������롥���δؿ���ƤФʤ���
-  �Ф��Υ饤�֥��ϥ���ѥ��뤵��ʤ���target�ϥ⥸�塼��̾
-  ��ɽ����
-
-find_executable(command, path)
-
-  ���ޥ��command��File::PATH_SEPARATOR�Ƕ��ڤ�줿�ѥ�̾��
-  �ꥹ��path����õ����path��nil�ޤ��Ͼ�ά���줿���ϡ��Ķ�
-  �ѿ�PATH���ͤ���Ѥ��롥�¹Բ�ǽ�ʥ��ޥ�ɤ����Ĥ��ä����
-  �ϥѥ���ޤ�ե�����̾�����Ĥ���ʤ��ä�����nil���֤���
-
-with_config(withval[, default=nil])
-
-  ���ޥ�ɥ饤����--with-<withval>�ǻ��ꤵ�줿���ץ�����ͤ����롥
-
-enable_config(config, *defaults)
-disable_config(config, *defaults)
-
-  ���ޥ�ɥ饤����--enable-<config>�ޤ���
-  --disable-<config>�ǻ��ꤵ�줿�����ͤ����롥
-  --enable-<config>�����ꤵ��Ƥ�������true��
-  --disable-<config>�����ꤵ��Ƥ�������false���֤���
-  �ɤ������ꤵ��Ƥ��ʤ����ϡ��֥��å��Ĥ��ǸƤӽФ���Ƥ������
-  *defaults��yield������̡��֥��å��ʤ��ʤ�*defaults���֤���
-
-dir_config(target[, default_dir])
-dir_config(target[, default_include, default_lib])
-
-  ���ޥ�ɥ饤����--with-<target>-dir, --with-<target>-include,
-  --with-<target>-lib�Τ����줫�ǻ��ꤵ���ǥ��쥯�ȥ��
-  $CFLAGS �� $LDFLAGS ���ɲä��롥--with-<target>-dir=/path��
-  --with-<target>-include=/path/include --with-<target>-lib=/path/lib
-  �������Ǥ��롥�ɲä��줿 include �ǥ��쥯�ȥ�� lib �ǥ��쥯�ȥ��
-  ������֤��� ([include_dir, lib_dir])
-
-pkg_config(pkg)
-
-  pkg-config���ޥ�ɤ���ѥå�����pkg�ξ�������롥 
-  pkg-config�μºݤΥ��ޥ��̾�ϡ�--with-pkg-config���ޥ��
-  �饤�󥪥ץ����ǻ����ǽ��
-
-/*
- * Local variables:
- * fill-column: 60
- * end:
- */
+doc/extension.ja.rdocに移動しました
diff --git a/README.ja b/README.ja
deleted file mode 100644
index 71ce4ee12c..0000000000
--- a/README.ja
+++ /dev/null
@@ -1,164 +0,0 @@
-* Ruby�Ȥ�
-
-Ruby�ϥ���ץ뤫�Ķ��Ϥʥ��֥������Ȼظ�������ץȸ���Ǥ���
-Ruby�Ϻǽ餫����ʥ��֥������Ȼظ�����Ȥ����߷פ���Ƥ���
-�����顤���֥������Ȼظ��ץ�����ߥ󥰤��ڤ˹Ԥ����������
-������������̾�μ�³�����Υץ�����ߥ󥰤��ǽ�Ǥ���
-
-Ruby�ϥƥ����Ƚ����ط���ǽ�Ϥʤɤ�ͥ�졤Perl��Ʊ�����餤����
-�Ǥ�������˥���ץ��ʸˡ�ȡ��㳰�����䥤�ƥ졼���ʤɤε���
-�ˤ�äơ����ʬ����䤹���ץ�����ߥ󥰤�����ޤ���
-
-
-* Ruby����Ĺ
-
-  + ����ץ��ʸˡ
-  + ���̤Υ��֥������Ȼظ���ǽ(���饹���᥽�åɥ�����ʤ�)
-  + �ü�ʥ��֥������Ȼظ���ǽ(Mixin, �ðۥ᥽�åɤʤ�)
-  + �黻�ҥ����С�������
-  + �㳰������ǽ
-  + ���ƥ졼���ȥ���������
-  + �����١������쥯��
-  + �����ʥߥå������ǥ��� (�������ƥ�����ˤ��)
-  + �ܿ������⤤��¿����UNIX���ư�������Ǥʤ���DOS��Windows��
-    Mac��BeOS�ʤɤξ�Ǥ�ư��
-
-
-* ����ˡ
-
-** FTP��
-
-�ʲ��ξ��ˤ����Ƥ���ޤ���
-
-  ftp://ftp.ruby-lang.org/pub/ruby/
-
-** Subversion��
-
-�ܥ֥�����Ruby�κǿ��Υ����������ɤϼ��Υ��ޥ�ɤǼ����Ǥ��ޤ���
-
-  $ svn co http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_8/
-
-��ȯ��ü�Υ����������ɤϼ��Υ��ޥ�ɤǼ����Ǥ��ޤ���
-
-  $ svn co http://svn.ruby-lang.org/repos/ruby/trunk/ ruby
-
-¾�˳�ȯ��Υ֥����ΰ����ϼ��Υ��ޥ�ɤǸ����ޤ���
-
-  $ svn ls http://svn.ruby-lang.org/repos/ruby/branches/
-
-
-* �ۡ���ڡ���
-
-Ruby�Υۡ���ڡ�����URL��
-
-   http://www.ruby-lang.org/
-
-�Ǥ���
-
-
-* �᡼��󥰥ꥹ��
-
-Ruby�Υ᡼��󥰥ꥹ�Ȥ�����ޤ������ô�˾������
-
-   ruby-list-ctl@ruby-lang.org
-
-�ޤ���ʸ��
-
-   subscribe YourFirstName YourFamilyName
-   
-�Ƚ񤤤����äƲ������� 
-
-Ruby��ȯ�Ը����᡼��󥰥ꥹ�Ȥ⤢��ޤ���������Ǥ�ruby�Υ�
-��������λ��ͳ�ĥ�ʤɼ����������ˤĤ��Ƶ�������Ƥ��ޤ���
-���ô�˾������
-
-   ruby-dev-ctl@ruby-lang.org
-
-�ޤ�ruby-list��Ʊ�ͤ���ˡ�ǥ᡼�뤷�Ƥ��������� 
-
-Ruby��ĥ�⥸�塼��ˤĤ����ä��礦ruby-ext�᡼��󥰥ꥹ�Ȥ�
-���شط�������ˤĤ����ä��礦ruby-math�᡼��󥰥ꥹ�Ȥ�
-�Ѹ���ä��礦ruby-talk�᡼��󥰥ꥹ�Ȥ⤢��ޤ���������ˡ
-�Ϥɤ��Ʊ���Ǥ��� 
-
-
-* ����ѥ��롦���󥹥ȡ���
-
-�ʲ��μ��ǹԤäƤ���������
-
-  1. �⤷configure�ե����뤬���Ĥ���ʤ����⤷����
-     configure.in���Ť��褦�ʤ顢autoconf��¹Ԥ���
-     ������configure����������
-
-  2. configure��¹Ԥ���Makefile�ʤɤ���������
-
-     �Ķ��ˤ�äƤϥǥե���Ȥ�C����ѥ����ѥ��ץ�����դ�
-     �ޤ���configure���ץ����� optflags=.. warnflags=.. ��
-     �Ǿ�񤭤Ǥ��ޤ���
-
-  3. (ɬ�פʤ��)defines.h���Խ�����
-
-     ¿ʬ��ɬ��̵���Ȼפ��ޤ���
-
-  4. (ɬ�פʤ��)ext/Setup����Ū�˥�󥯤����ĥ�⥸�塼���
-     ���ꤹ��
-
-     ext/Setup�˵��Ҥ����⥸�塼�����Ū�˥�󥯤���ޤ���
-
-     �����ʥߥå������ǥ��󥰤򥵥ݡ��Ȥ��Ƥ��ʤ��������ƥ�
-     ����Ǥ�Setup��1���ܤΡ�option nodynamic�פȤ����ԤΥ�
-     ���Ȥ򳰤�ɬ�פ�����ޤ����ޤ������Υ������ƥ������
-     ��ĥ�⥸�塼������Ѥ��뤿��ˤϡ����餫������Ū�˥��
-     �����Ƥ���ɬ�פ�����ޤ���
-
-  5. make��¹Ԥ��ƥ���ѥ��뤹��
-
-  6. make test�ǥƥ��Ȥ�Ԥ���
-
-     ��test succeeded�פ�ɽ�������������Ǥ����������ƥ���
-     ���������Ƥⴰ�������ݾڤ���Ƥ������ǤϤ���ޤ���
-
-  7. make install
-
-     root�Ǻ�Ȥ���ɬ�פ����뤫�⤷��ޤ���
-
-�⤷������ѥ�����˥��顼��ȯ���������ˤϥ��顼�Υ����ȥ�
-����OS�μ����ޤ�Ǥ�������ܤ�����ݡ��Ȥ��Ԥ����äƤ�
-�������¾�����Τ���ˤ�ʤ�ޤ���
-
-
-* �ܿ�
-
-UNIX�Ǥ����configure���ۤȤ�ɤκ��ۤ�ۼ����Ƥ����Ϥ���
-�������פ�̸���Ȥ������ä����(����˰㤤�ʤ�)����Ԥˤ���
-���Ȥ��ݡ��Ȥ���С����Ǥ��뤫���Τ�ޤ���
-
-�������ƥ�����ˤ�äȤ��¸����Τ�GC���Ǥ���Ruby��GC���о�
-�Υ������ƥ����㤬setjmp()�ˤ�ä����ƤΥ쥸������ jmp_buf��
-��Ǽ���뤳�Ȥȡ�jmp_buf�ȥ����å���32bit���饤����Ȥ����
-���뤳�Ȥ��ꤷ�Ƥ��ޤ����ä����Ԥ���Ω���ʤ������б�����
-��˺���Ǥ��礦����Ԥβ������Ū��ñ�ǡ�gc.c�ǥ����å���
-�ޡ������Ƥ�����ʬ�˥��饤����ȤΥХ��ȿ��������餷�ƥޡ�
-�����륳���ɤ��ɲä�������ǺѤߤޤ�����defined(THINK_C)�פ�
-����Ƥ�����ʬ�򻲹ͤˤ��Ƥ�������
-
-# �ºݤˤ�Ruby��Think C�Ǥϥ���ѥ���Ǥ��ޤ���
-
-�쥸����������ɥ������CPU�Ǥϡ��쥸����������ɥ��򥹥���
-���˥ե�å��夹�륢����֥饳���ɤ��ɲä���ɬ�פ����뤫����
-��ޤ���
-
-
-* ���۾��
-
-COPYING.ja�ե�����򻲾Ȥ��Ƥ���������
-
-
-* ����
-
-�����ȡ��Х���ݡ��Ȥ���¾�� matz@netlab.jp �ޤǡ�
--------------------------------------------------------
-created at: Thu Aug  3 11:57:36 JST 1995
-Local variables:
-mode: indented-text
-end:
diff --git a/README.ja.md b/README.ja.md
new file mode 100644
index 0000000000..9d6131e416
--- /dev/null
+++ b/README.ja.md
@@ -0,0 +1,171 @@
+# Rubyとは
+
+Rubyはシンプルかつ強力なオブジェクト指向スクリプト言語です． Rubyは純粋なオブジェクト指向言語として設計されているので，
+オブジェクト指向プログラミングを手軽に行う事が出来ます．もちろん普通の手続き型のプログラミングも可能です．
+
+Rubyはテキスト処理関係の能力などに優れ，Perlと同じくらい強力です．さらにシンプルな文法と，
+例外処理やイテレータなどの機構によって，より分かりやすいプログラミングが出来ます．
+
+## Rubyの特長
+
+*   シンプルな文法
+*   普通のオブジェクト指向機能(クラス，メソッドコールなど)
+*   特殊なオブジェクト指向機能(Mixin, 特異メソッドなど)
+*   演算子オーバーロード
+*   例外処理機能
+*   イテレータとクロージャ
+*   ガーベージコレクタ
+*   ダイナミックローディング (アーキテクチャによる)
+*   移植性が高い．多くのUnix-like/POSIX互換プラットフォーム上で動くだけでなく，Windows， Mac OS
+    X，BeOSなどの上でも動く cf.
+    http://bugs.ruby-lang.org/projects/ruby-trunk/wiki/SupportedPlatformsJa
+
+
+## 入手法
+
+### FTPで
+
+以下の場所においてあります．
+
+ftp://ftp.ruby-lang.org/pub/ruby/
+
+### Subversionで
+
+開発先端のソースコードは次のコマンドで取得できます．
+
+    $ svn co http://svn.ruby-lang.org/repos/ruby/trunk/ ruby
+
+他に開発中のブランチの一覧は次のコマンドで見られます．
+
+    $ svn ls http://svn.ruby-lang.org/repos/ruby/branches/
+
+### Gitで
+
+SubversionのミラーをGitHubに公開しています． 以下のコマンドでリポジトリを取得できます．
+
+    $ git clone git://github.com/ruby/ruby.git
+
+## ホームページ
+
+RubyのホームページのURLは
+
+http://www.ruby-lang.org/
+
+です．
+
+## メーリングリスト
+
+Rubyのメーリングリストがあります．参加希望の方は
+
+mailto:ruby-list-request@ruby-lang.org
+
+まで本文に
+
+    subscribe
+
+と書いて送って下さい．
+
+Ruby開発者向けメーリングリストもあります．こちらではrubyのバグ，将来の仕様拡張など実装上の問題について議論されています． 参加希望の方は
+
+mailto:ruby-dev-request@ruby-lang.org
+
+までruby-listと同様の方法でメールしてください．
+
+Ruby拡張モジュールについて話し合うruby-extメーリングリストと数学関係の話題について話し合うruby-mathメーリングリストと
+英語でrubyについて話し合うruby-talkメーリングリストもあります．参加方法はどれも同じです．
+
+## コンパイル・インストール
+
+以下の手順で行ってください．
+
+1.  もし `configure` ファイルが見つからない，もしくは `configure.in` より古いようなら， `autoconf` を実行して
+    新しく `configure` を生成する
+
+2.  `configure` を実行して `Makefile` などを生成する
+
+    環境によってはデフォルトのCコンパイラ用オプションが付きます． `configure` オプションで `optflags=..`
+    `warnflags=..` 等で上書きできます．
+
+3.  (必要ならば)`defines.h` を編集する
+
+    多分，必要無いと思います．
+
+4.  (必要ならば)`ext/Setup` に静的にリンクする拡張モジュールを指定する
+
+    `ext/Setup` に記述したモジュールは静的にリンクされます．
+
+    ダイナミックローディングをサポートしていないアーキテクチャでは `Setup` の1行目の「`option nodynamic`」という行のコ
+    メントを外す必要があります．また，このアーキテクチャで拡張モジュールを利用するためには，あらかじめ静的にリンクをしておく必要があります．
+
+5.  `make` を実行してコンパイルする
+
+6.  `make check`でテストを行う．
+
+    「`check succeeded`」と表示されれば成功です．ただしテストに成功しても完璧だと保証されている訳ではありません．
+
+7.  `make install`
+
+    以下のディレクトリを作って，そこにファイルをインストー ルします．
+
+    *   `${DESTDIR}${prefix}/bin`
+    *   `${DESTDIR}${prefix}/include/ruby-${MAJOR}.${MINOR}.${TEENY}`
+    *   `${DESTDIR}${prefix}/include/ruby-${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}`
+    *   `${DESTDIR}${prefix}/lib`
+    *   `${DESTDIR}${prefix}/lib/ruby`
+    *   `${DESTDIR}${prefix}/lib/ruby/${MAJOR}.${MINOR}.${TEENY}`
+    *   `${DESTDIR}${prefix}/lib/ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}`
+    *   `${DESTDIR}${prefix}/lib/ruby/site_ruby`
+    *   `${DESTDIR}${prefix}/lib/ruby/site_ruby/${MAJOR}.${MINOR}.${TEENY}`
+    *   `${DESTDIR}${prefix}/lib/ruby/site_ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}`
+    *   `${DESTDIR}${prefix}/lib/ruby/vendor_ruby`
+    *   `${DESTDIR}${prefix}/lib/ruby/vendor_ruby/${MAJOR}.${MINOR}.${TEENY}`
+    *   `${DESTDIR}${prefix}/lib/ruby/vendor_ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}`
+    *   `${DESTDIR}${prefix}/lib/ruby/gems/${MAJOR}.${MINOR}.${TEENY}`
+    *   `${DESTDIR}${prefix}/share/man/man1`
+    *   `${DESTDIR}${prefix}/share/ri/${MAJOR}.${MINOR}.${TEENY}/system`
+
+
+    RubyのAPIバージョンが'*x.y.z*'であれば，`${MAJOR}`は
+    '*x*'で，`${MINOR}`は'*y*'，`${TEENY}`は'*z*'です．
+
+    **注意**: APIバージョンの `teeny` は，Rubyプログラムのバージョンとは異なることがあります．
+
+    `root` で作業する必要があるかもしれません．
+
+
+もし，コンパイル時にエラーが発生した場合にはエラーのログとマシン，OSの種類を含むできるだけ詳しいレポートを作者に送って下さると他の方のためにもなります．
+
+## 移植
+
+UNIXであれば `configure` がほとんどの差異を吸収してくれるはずですが，思わぬ見落としがあった場合(ある事が多い)，作者にその
+ことを報告すれば，解決できる可能性があります．
+
+アーキテクチャにもっとも依存するのはGC部です．RubyのGCは対象
+のアーキテクチャが`setjmp()`または`getcontext()`によって全てのレジスタを `jmp_buf` や `ucontext_t`
+に格納することと， `jmp_buf` や `ucontext_t` とスタックが32bitアラインメントされていることを仮定
+しています．特に前者が成立しない場合の対応は非常に困難でしょう． 後者の解決は比較的簡単で， `gc.c` でスタックをマークしている
+部分にアラインメントのバイト数だけずらしてマークするコードを追加するだけで済みます．`defined(__mc68000__)`で括られてい
+る部分を参考にしてください．
+
+レジスタウィンドウを持つCPUでは，レジスタウィンドウをスタックにフラッシュするアセンブラコードを追加する必要があるかもしれません．
+
+## 配布条件
+
+[COPYING.ja](COPYING.ja) ファイルを参照してください．
+
+## フィードバック
+
+Rubyに関する質問は Ruby-Talk（英語）や Ruby-List（日本語） (https://www.ruby-lang.org/ja/community/mailing-lists) や，
+stackoverflow (http://ja.stackoverflow.com/) などのWebサイトに投稿してください．
+
+バグ報告は http://bugs.ruby-lang.org で受け付けています．
+
+
+## 著者
+
+Rubyのオリジナル版は，1995年にまつもとゆきひろ氏によって設計・開発されました．
+
+<mailto:matz@ruby-lang.org>
+
+---
+created at: Thu Aug  3 11:57:36 JST 1995
diff --git a/README.md b/README.md
new file mode 100644
index 0000000000..f79ba9c718
--- /dev/null
+++ b/README.md
@@ -0,0 +1,167 @@
+[![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, Mac OS X, BeOS, etc.) cf.
+    http://bugs.ruby-lang.org/projects/ruby-trunk/wiki/SupportedPlatforms
+
+
+## How to get Ruby
+
+For a complete list of ways to install Ruby, including using third-party tools
+like rvm, see:
+
+http://www.ruby-lang.org/en/downloads/
+
+The Ruby distribution files can be found on the following FTP site:
+
+ftp://ftp.ruby-lang.org/pub/ruby/
+
+The trunk of the Ruby source tree can be checked out with the following
+command:
+
+    $ svn co http://svn.ruby-lang.org/repos/ruby/trunk/ ruby
+
+Or if you are using git then use the following command:
+
+    $ git clone git://github.com/ruby/ruby.git
+
+There are some other branches under development.  Try the following command
+to see the list of branches:
+
+    $ svn ls http://svn.ruby-lang.org/repos/ruby/branches/
+
+Or if you are using git then use the following command:
+
+    $ git ls-remote git://github.com/ruby/ruby.git
+
+## Ruby home page
+
+The URL of the Ruby home page is:
+
+http://www.ruby-lang.org/
+
+## Mailing list
+
+There is a mailing list to talk about Ruby. To subscribe 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 instead of this document.
+
+2.  If `./configure` does not exist or is older than configure.in, run
+    `autoconf` to (re)generate configure.
+
+3.  Run `./configure`, which will generate `config.h` and `Makefile`.
+
+    Some C compiler flags may be added by default depending on your
+    environment.  Specify `optflags=..` and `warnflags=..` as necessary to
+    override them.
+
+4.  Edit `defines.h` if you need. Usually this step will not be needed.
+
+5.  Remove comment mark(`#`) before the module names from `ext/Setup` (or add
+    module names if not present), if you want to link modules statically.
+
+    If you don't want to compile non static extension modules (probably on
+    architectures which do not allow dynamic loading), remove comment mark
+    from the line "`#option nodynamic`" in `ext/Setup`.
+
+    Usually this step will not be needed.
+
+6.  Run `make`.
+
+7.  Optionally, run '`make check`' to check whether the compiled Ruby
+    interpreter works well. If you see the message "`check succeeded`", your
+    ruby works as it should (hopefully).
+
+8.  Run '`make install`'
+
+    This command will create 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
+(http://www.ruby-lang.org/en/community/mailing-lists) or on websites like
+(http://stackoverflow.com).
+
+Bug reports should be filed at http://bugs.ruby-lang.org. Read [HowToReport] for more information.
+
+[HowToReport]: https://bugs.ruby-lang.org/projects/ruby/wiki/HowToReport
+
+##Contributing
+
+See the file [CONTRIBUTING.md](CONTRIBUTING.md)
+
+
+## The Author
+
+Ruby was originally designed and developed by Yukihiro Matsumoto (Matz) in
+1995.
+
+<mailto:matz@ruby-lang.org>
diff --git a/ToDo b/ToDo
deleted file mode 100644
index b55e399edf..0000000000
--- a/ToDo
+++ /dev/null
@@ -1,126 +0,0 @@
-Language Spec.
-
-- Class#allocate - basicNew
-- class Foo::Bar<Baz .. end, module Boo::Bar .. end
-* operator !! for rescue. ???
-* objectify characters
-* ../... outside condition invokes operator method too.
-* ... inside condition turns off just before right condition.???
-* package or access control for global variables??
-* named arguments like foo(nation:="german") or foo(nation: "german").
-* method to retrieve argument information (needs new C API)
-* multiple return values, yield values.  maybe incompatible ???
-* cascading method invocation ???
-* def Class#method .. end ??
-* def Foo::Bar::baz() .. end ??
-* I18N (or M17N) script/string/regexp
-* Fixnum 0 as false ????
-* discourage use of symbol variables (e.g. $/, etc.) in manual
-* discourage use of Perlish features by giving warnings.
-* non confusing in-block local variable (is it possible?)
-  + remove scope by block
-  + variables appears within block may have independent values.
-* Regexp: make /o thread safe.
-* decide whether begin with rescue or ensure make do..while loop.
-* a +1 to be a+1, not a(+1).
-* unify == and eql? again
-* to_i returns nil if str contains no digit.
-* raise exception by `` error
-* jar like combined library package. -> RubyGems?
-* resumable Exception via Exception#resume.
-* method combination, e.g. before, after, around, etc.
-* .. or something like defadvice in Emacs.
-* property - for methods, or for objects in general.
-* "in" modifier, to annotate, or to encourage assertion.
-* selector namespace - something like generic-flet in CLOS, to help RubyBehavior
-* private instance variable (as in Python?) @_foo in class Foo => @_Foo_foo
-* warn/error "bare word" method, like "foo",  you should type "foo()"
-* clarify evaluation order of operator argument (=~, .., ...)
-* :symbol => value hash in the form of {symbol: value, ...} ??
-
-Hacking Interpreter
-
-- generational GC
-* non-blocking open (e.g. for named pipe) for thread
-* avoid blocking with gethostbyname/gethostbyaddr (use fork ???)
-* objectify interpreters ???
-* remove rb_eval() recursions
-* syntax tree -> bytecode ???
-* scrambled script, or script filter
-* setuid ruby
-* performance tune for in-block (dynamic) local variables.
-* give warnings to assign magic variables.
-* export rb_io_{addstr,printf,puts,print}
-* autoload should work with threads [ruby-talk:4589]
-* remove stdio dependency from IOs.
-* warn for inconsistent local variable usage (lv m and method m at the same time). 
-* MicroRuby
-* Built-in Interactive Ruby.
-* Parser API
-* trap every method invocation, which can be enabled by e.g. trap_call :method.
-* unify Errno exceptions of same errno, or new exception comparison scheme.
-* 2.times{|i| if i==0 then a = 15 else puts eval("a") end} should print nil.
-* Thread#max_stack_size attribute (possible??)
-
-Standard Libraries
-
-- Module#define_method which takes a name and a body (block, proc or method).
-- Enume#inject
-- Array#fetch
-- IO::for_fd
-- Process::waitall [ruby-talk:4557]
-- Process::Status
-- File::lchown, File::lchmod; xxx - still need work for non existing platforms
-- move Time::times to Process.
-- Enumerable#sort_by for Schwartzian transformation
-- fork_and_kill_other_threads.
-- signal list (Signal::trap, Signal::list).
-- move NameError under StandardError.
-- Integer#to_s(base)
-- Hash::new{default}
-- hash etc. should handle self referenceing array/hash
-- Array#select(n1,n2...) works like Array#indexes(n1,n2...)
-- use Mersenne Twister RNG for random.
-- deprecate Array#indexes, and Array#indices.
-- remove dependency on MAXPATHLEN.
-* String#scanf(?)
-* Object#fmt(?)
-* Time::strptime
-* Integer[num], Float[num];  Fixnum[num]?
-* method to retrieve non-number trailer for to_i/to_f.
-* Stream or Port, abstract superclass of IO ?
-* String#{pred,prev}, String#downto
-* optional stepsize argument for succ()
-* Ruby module -- Ruby::Version, Ruby::Interpreter
-* introduce Boolean class; super of TrueClass, FalseClass
-* synchronized method - synchronized{...}, synchronized :foo, :bar
-* Array#&, Array#| to allow duplication. ???
-* way to specify immortal (fork endurance) thread;
-* or raise ForkException to every thread but fork caller.
-* new user-defined marshal scheme. _dump(dumper), _load(restorer)
-* library to load per-user profile seeking .ruby_profile or ruby.ini file.
-* warning framework (warn, warning for Ruby level)
-* marshal should not depend on sprintf (works bad with locale).
-* ternary arg pow: a.pow(b,c) == a**b%c
-* new caller(), e.g. call_stack; needs better name.
-* pointer share mechanism similar to one in String for Array.
-* require "1.6" etc. by /usr/lib/ruby/1.6/1.6.rb ;-)
-* save both "feature names" and "normalized path" in $"
-* implement Mutex_m (or MutexMixin) using Mutex.
-
-Extension Libraries
-
-* ptk.rb pTk wrapper that is compatible to tk.rb
-* Berkeley DB extension
-* BitVector
-* thread-safe fcgi
-
-Ruby Libraries
-
-* urllib.rb, nttplib.rb, etc.
-* format like perl's
-
-Tools
-
-* freeze or undump to bundle everything
-* bundle using zlib
diff --git a/acinclude.m4 b/acinclude.m4
new file mode 100644
index 0000000000..99b24e6d93
--- /dev/null
+++ b/acinclude.m4
@@ -0,0 +1,46 @@
+# -*- autoconf -*-
+
+AC_DEFUN([_COLORIZE_RESULT_PREPARE], [
+    msg_checking= msg_result_yes= msg_result_no= msg_result_other= msg_reset=
+    AS_IF([test "x${CONFIGURE_TTY}" = xyes -o -t 1], [
+	msg_begin="`tput smso 2>/dev/null`"
+	AS_CASE(["$msg_begin"], ['@<:@'*m],
+	    [msg_begin="`echo "$msg_begin" | sed ['s/[0-9]*m$//']`"
+	    msg_checking="${msg_begin}33m"
+	    AS_IF([test ${TEST_COLORS:+set}], [
+		msg_result_yes=[`expr ":$TEST_COLORS:" : ".*:pass=\([^:]*\):"`]
+		msg_result_no=[`expr ":$TEST_COLORS:" : ".*:fail=\([^:]*\):"`]
+		msg_result_other=[`expr ":$TEST_COLORS:" : ".*:skip=\([^:]*\):"`]
+	    ])
+	    msg_result_yes="${msg_begin}${msg_result_yes:-32;1}m"
+	    msg_result_no="${msg_begin}${msg_result_no:-31;1}m"
+	    msg_result_other="${msg_begin}${msg_result_other:-33;1}m"
+	    msg_reset="${msg_begin}m"
+	    ])
+	AS_UNSET(msg_begin)
+	])
+    AS_REQUIRE_SHELL_FN([colorize_result],
+	[AS_FUNCTION_DESCRIBE([colorize_result], [MSG], [Colorize result])],
+        [AS_CASE(["$[]1"],
+            [yes], [AS_ECHO(["${msg_result_yes}$[]1${msg_reset}]")],
+            [no], [AS_ECHO(["${msg_result_no}$[]1${msg_reset}]")],
+            [AS_ECHO(["${msg_result_other}$[]1${msg_reset}]")])])
+])
+
+AC_DEFUN([COLORIZE_RESULT], [AC_REQUIRE([_COLORIZE_RESULT_PREPARE])dnl
+    AS_LITERAL_IF([$1],
+	[m4_case([$1],
+		[yes], [AS_ECHO(["${msg_result_yes}$1${msg_reset}"])],
+		[no], [AS_ECHO(["${msg_result_no}$1${msg_reset}"])],
+		[AS_ECHO(["${msg_result_other}$1${msg_reset}"])])],
+	[colorize_result "$1"]) dnl
+])
+
+AC_DEFUN([AC_CHECKING],[dnl
+AC_REQUIRE([_COLORIZE_RESULT_PREPARE])dnl
+AS_MESSAGE([checking ${msg_checking}$1${msg_reset}...])])
+
+AC_DEFUN([AC_MSG_RESULT], [dnl
+{ _AS_ECHO_LOG([result: $1])
+COLORIZE_RESULT([$1]); dnl
+}])
diff --git a/aclocal.m4 b/aclocal.m4
new file mode 100644
index 0000000000..56e944be8f
--- /dev/null
+++ b/aclocal.m4
@@ -0,0 +1,15 @@
+# generated automatically by aclocal 1.15 -*- Autoconf -*-
+
+# Copyright (C) 1996-2014 Free Software Foundation, Inc.
+
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
+m4_include([acinclude.m4])
diff --git a/addr2line.c b/addr2line.c
new file mode 100644
index 0000000000..a20e5000c4
--- /dev/null
+++ b/addr2line.c
@@ -0,0 +1,1205 @@
+/**********************************************************************
+
+  addr2line.c -
+
+  $Author$
+
+  Copyright (C) 2010 Shinichiro Hamaji
+
+**********************************************************************/
+
+#include "ruby/config.h"
+#include "ruby/missing.h"
+#include "addr2line.h"
+
+#include <stdio.h>
+#include <errno.h>
+
+#ifdef USE_ELF
+
+#include <fcntl.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#ifdef __OpenBSD__
+#include <elf_abi.h>
+#else
+#include <elf.h>
+#endif
+
+/* Make alloca work the best possible way.  */
+#ifdef __GNUC__
+# ifndef alloca
+#  define alloca __builtin_alloca
+# endif
+#else
+# ifdef HAVE_ALLOCA_H
+#  include <alloca.h>
+# else
+#  ifdef _AIX
+#pragma alloca
+#  else
+#   ifndef alloca		/* predefined by HP cc +Olibcalls */
+void *alloca();
+#   endif
+#  endif /* AIX */
+# endif	/* HAVE_ALLOCA_H */
+#endif /* __GNUC__ */
+
+#ifdef HAVE_DLADDR
+# include <dlfcn.h>
+#endif
+
+#define DW_LNS_copy                     0x01
+#define DW_LNS_advance_pc               0x02
+#define DW_LNS_advance_line             0x03
+#define DW_LNS_set_file                 0x04
+#define DW_LNS_set_column               0x05
+#define DW_LNS_negate_stmt              0x06
+#define DW_LNS_set_basic_block          0x07
+#define DW_LNS_const_add_pc             0x08
+#define DW_LNS_fixed_advance_pc         0x09
+#define DW_LNS_set_prologue_end         0x0a /* DWARF3 */
+#define DW_LNS_set_epilogue_begin       0x0b /* DWARF3 */
+#define DW_LNS_set_isa                  0x0c /* DWARF3 */
+
+/* Line number extended opcode name. */
+#define DW_LNE_end_sequence             0x01
+#define DW_LNE_set_address              0x02
+#define DW_LNE_define_file              0x03
+#define DW_LNE_set_discriminator        0x04  /* DWARF4 */
+
+#ifndef ElfW
+# if SIZEOF_VOIDP == 8
+#  define ElfW(x) Elf64##_##x
+# else
+#  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
+
+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;
+};
+
+/* Avoid consuming stack as this module may be used from signal handler */
+static char binary_filename[PATH_MAX];
+
+static unsigned long
+uleb128(char **p)
+{
+    unsigned long r = 0;
+    int s = 0;
+    for (;;) {
+	unsigned char b = *(unsigned char *)(*p)++;
+	if (b < 0x80) {
+	    r += (unsigned long)b << s;
+	    break;
+	}
+	r += (b & 0x7f) << s;
+	s += 7;
+    }
+    return r;
+}
+
+static long
+sleb128(char **p)
+{
+    long r = 0;
+    int s = 0;
+    for (;;) {
+	unsigned char b = *(unsigned char *)(*p)++;
+	if (b < 0x80) {
+	    if (b & 0x40) {
+		r -= (0x80 - b) << s;
+	    }
+	    else {
+		r += (b & 0x3f) << s;
+	    }
+	    break;
+	}
+	r += (b & 0x7f) << s;
+	s += 7;
+    }
+    return r;
+}
+
+static const char *
+get_nth_dirname(unsigned long dir, char *p)
+{
+    if (!dir--) {
+	return "";
+    }
+    while (dir--) {
+	while (*p) p++;
+	p++;
+	if (!*p) {
+	    kprintf("Unexpected directory number %lu in %s\n",
+		    dir, binary_filename);
+	    return "";
+	}
+    }
+    return p;
+}
+
+static void
+fill_filename(int file, char *include_directories, char *filenames,
+	      line_info_t *line)
+{
+    int i;
+    char *p = filenames;
+    char *filename;
+    unsigned long dir;
+    for (i = 1; i <= file; i++) {
+	filename = p;
+	if (!*p) {
+	    /* Need to output binary file name? */
+	    kprintf("Unexpected file number %d in %s\n",
+		    file, binary_filename);
+	    return;
+	}
+	while (*p) p++;
+	p++;
+	dir = uleb128(&p);
+	/* last modified. */
+	uleb128(&p);
+	/* size of the file. */
+	uleb128(&p);
+
+	if (i == file) {
+	    line->filename = filename;
+	    line->dirname = get_nth_dirname(dir, include_directories);
+	}
+    }
+}
+
+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)
+{
+    int i;
+    addr += obj->base_addr;
+    for (i = offset; i < num_traces; i++) {
+	uintptr_t a = (uintptr_t)traces[i];
+	/* We assume one line code doesn't result >100 bytes of native code.
+       We may want more reliable way eventually... */
+	if (addr < a && a < addr + 100) {
+	    fill_filename(file, include_directories, filenames, &lines[i]);
+	    lines[i].line = line;
+	}
+    }
+}
+
+static void
+parse_debug_line_cu(int num_traces, void **traces, char **debug_line,
+		obj_info_t *obj, line_info_t *lines, int offset)
+{
+    char *p, *cu_end, *cu_start, *include_directories, *filenames;
+    unsigned long unit_length;
+    int default_is_stmt, line_base;
+    unsigned int header_length, minimum_instruction_length, line_range,
+		 opcode_base;
+    /* unsigned char *standard_opcode_lengths; */
+
+    /* The registers. */
+    unsigned long addr = 0;
+    unsigned int file = 1;
+    unsigned int line = 1;
+    /* unsigned int column = 0; */
+    int is_stmt;
+    /* int basic_block = 0; */
+    /* int end_sequence = 0; */
+    /* int prologue_end = 0; */
+    /* int epilogue_begin = 0; */
+    /* unsigned int isa = 0; */
+
+    p = *debug_line;
+
+    unit_length = *(unsigned int *)p;
+    p += sizeof(unsigned int);
+    if (unit_length == 0xffffffff) {
+	unit_length = *(unsigned long *)p;
+	p += sizeof(unsigned long);
+    }
+
+    cu_end = p + unit_length;
+
+    /*dwarf_version = *(unsigned short *)p;*/
+    p += 2;
+
+    header_length = *(unsigned int *)p;
+    p += sizeof(unsigned int);
+
+    cu_start = p + header_length;
+
+    minimum_instruction_length = *(unsigned char *)p;
+    p++;
+
+    is_stmt = default_is_stmt = *(unsigned char *)p;
+    p++;
+
+    line_base = *(signed char *)p;
+    p++;
+
+    line_range = *(unsigned char *)p;
+    p++;
+
+    opcode_base = *(unsigned char *)p;
+    p++;
+
+    /* standard_opcode_lengths = (unsigned char *)p - 1; */
+    p += opcode_base - 1;
+
+    include_directories = p;
+
+    /* skip include directories */
+    while (*p) {
+	while (*p) p++;
+	p++;
+    }
+    p++;
+
+    filenames = p;
+
+    p = cu_start;
+
+#define FILL_LINE()						    \
+    do {							    \
+	fill_line(num_traces, traces, addr, file, line,		    \
+		  include_directories, filenames,		    \
+		  obj, lines, offset);				    \
+	/*basic_block = prologue_end = epilogue_begin = 0;*/	    \
+    } while (0)
+
+    while (p < cu_end) {
+	unsigned long a;
+	unsigned char op = *p++;
+	switch (op) {
+	case DW_LNS_copy:
+	    FILL_LINE();
+	    break;
+	case DW_LNS_advance_pc:
+	    a = uleb128(&p);
+	    addr += a;
+	    break;
+	case DW_LNS_advance_line: {
+	    long a = sleb128(&p);
+	    line += a;
+	    break;
+	}
+	case DW_LNS_set_file:
+	    file = (unsigned int)uleb128(&p);
+	    break;
+	case DW_LNS_set_column:
+	    /*column = (unsigned int)*/(void)uleb128(&p);
+	    break;
+	case DW_LNS_negate_stmt:
+	    is_stmt = !is_stmt;
+	    break;
+	case DW_LNS_set_basic_block:
+	    /*basic_block = 1; */
+	    break;
+	case DW_LNS_const_add_pc:
+	    a = ((255 - opcode_base) / line_range) *
+		minimum_instruction_length;
+	    addr += a;
+	    break;
+	case DW_LNS_fixed_advance_pc:
+	    a = *(unsigned char *)p++;
+	    addr += a;
+	    break;
+	case DW_LNS_set_prologue_end:
+	    /* prologue_end = 1; */
+	    break;
+	case DW_LNS_set_epilogue_begin:
+	    /* epilogue_begin = 1; */
+	    break;
+	case DW_LNS_set_isa:
+	    /* isa = (unsigned int)*/(void)uleb128(&p);
+	    break;
+	case 0:
+	    a = *(unsigned char *)p++;
+	    op = *p++;
+	    switch (op) {
+	    case DW_LNE_end_sequence:
+		/* end_sequence = 1; */
+		FILL_LINE();
+		addr = 0;
+		file = 1;
+		line = 1;
+		/* column = 0; */
+		is_stmt = default_is_stmt;
+		/* end_sequence = 0; */
+		/* isa = 0; */
+		break;
+	    case DW_LNE_set_address:
+		addr = *(unsigned long *)p;
+		p += sizeof(unsigned long);
+		break;
+	    case DW_LNE_define_file:
+		kprintf("Unsupported operation in %s\n",
+			binary_filename);
+		break;
+	    case DW_LNE_set_discriminator:
+		/* TODO:currently ignore */
+		uleb128(&p);
+		break;
+	    default:
+		kprintf("Unknown extended opcode: %d in %s\n",
+			op, binary_filename);
+	    }
+	    break;
+	default: {
+	    unsigned long addr_incr;
+	    unsigned long line_incr;
+	    a = op - opcode_base;
+	    addr_incr = (a / line_range) * minimum_instruction_length;
+	    line_incr = line_base + (a % line_range);
+	    addr += (unsigned int)addr_incr;
+	    line += (unsigned int)line_incr;
+	    FILL_LINE();
+	}
+	}
+    }
+    *debug_line = p;
+}
+
+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_end = debug_line + size;
+    while (debug_line < debug_line_end) {
+	parse_debug_line_cu(num_traces, traces, &debug_line, obj, lines, offset);
+    }
+    if (debug_line != debug_line_end) {
+	kprintf("Unexpected size of .debug_line in %s\n",
+		binary_filename);
+    }
+}
+
+/* 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;
+}
+
+static void
+follow_debuglink(char *debuglink, int num_traces, void **traces,
+		 obj_info_t **objp, line_info_t *lines, int offset)
+{
+    /* Ideally we should check 4 paths to follow gnu_debuglink,
+       but we handle only one case for now as this format is used
+       by some linux distributions. See GDB's info for detail. */
+    static const char global_debug_dir[] = "/usr/lib/debug";
+    char *p, *subdir;
+    obj_info_t *o1 = *objp, *o2;
+
+    p = strrchr(binary_filename, '/');
+    if (!p) {
+	return;
+    }
+    p[1] = '\0';
+
+    subdir = (char *)alloca(strlen(binary_filename) + 1);
+    strcpy(subdir, binary_filename);
+    strcpy(binary_filename, global_debug_dir);
+    strlcat(binary_filename, subdir, PATH_MAX);
+    strlcat(binary_filename, debuglink, PATH_MAX);
+
+    append_obj(objp);
+    o2 = *objp;
+    o2->base_addr = o1->base_addr;
+    o2->path = o1->path;
+    fill_lines(num_traces, traces, 0, objp, lines, offset);
+}
+
+/* read file and fill lines */
+static uintptr_t
+fill_lines(int num_traces, void **traces, int check_debuglink,
+	   obj_info_t **objp, line_info_t *lines, int offset)
+{
+    int i, j;
+    char *shstr;
+    char *section_name;
+    ElfW(Ehdr) *ehdr;
+    ElfW(Shdr) *shdr, *shstr_shdr;
+    ElfW(Shdr) *debug_line_shdr = NULL, *gnu_debuglink_shdr = NULL;
+    int fd;
+    off_t filesize;
+    char *file;
+    ElfW(Shdr) *symtab_shdr = NULL, *strtab_shdr = NULL;
+    ElfW(Shdr) *dynsym_shdr = NULL, *dynstr_shdr = NULL;
+    obj_info_t *obj = *objp;
+    uintptr_t dladdr_fbase = 0;
+
+    fd = open(binary_filename, O_RDONLY);
+    if (fd < 0) {
+	goto fail;
+    }
+    filesize = lseek(fd, 0, SEEK_END);
+    if (filesize < 0) {
+	int e = errno;
+	close(fd);
+	kprintf("lseek: %s\n", strerror(e));
+	goto fail;
+    }
+#if SIZEOF_OFF_T > SIZEOF_SIZE_T
+    if (filesize > (off_t)SIZE_MAX) {
+	close(fd);
+	kprintf("Too large file %s\n", binary_filename);
+	goto fail;
+    }
+#endif
+    lseek(fd, 0, SEEK_SET);
+    /* async-signal unsafe */
+    file = (char *)mmap(NULL, (size_t)filesize, PROT_READ, MAP_SHARED, fd, 0);
+    if (file == MAP_FAILED) {
+	int e = errno;
+	close(fd);
+	kprintf("mmap: %s\n", strerror(e));
+	goto fail;
+    }
+
+    ehdr = (ElfW(Ehdr) *)file;
+    if (memcmp(ehdr->e_ident, "\177ELF", 4) != 0) {
+	/*
+	 * Huh? Maybe filename was overridden by setproctitle() and
+	 * it match non-elf file.
+	 */
+	close(fd);
+	goto fail;
+    }
+
+    obj->fd = fd;
+    obj->mapped = file;
+    obj->mapped_size = (size_t)filesize;
+
+    shdr = (ElfW(Shdr) *)(file + ehdr->e_shoff);
+
+    shstr_shdr = shdr + ehdr->e_shstrndx;
+    shstr = file + shstr_shdr->sh_offset;
+
+    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")) {
+		debug_line_shdr = shdr + i;
+	    }
+	    else if (!strcmp(section_name, ".gnu_debuglink")) {
+		gnu_debuglink_shdr = shdr + i;
+	    }
+	    break;
+	}
+    }
+
+    if (offset == -1) {
+	/* main executable */
+	offset = 0;
+	if (dynsym_shdr && dynstr_shdr) {
+	    char *strtab = file + dynstr_shdr->sh_offset;
+	    ElfW(Sym) *symtab = (ElfW(Sym) *)(file + dynsym_shdr->sh_offset);
+	    int symtab_count = (int)(dynsym_shdr->sh_size / sizeof(ElfW(Sym)));
+	    for (j = 0; j < symtab_count; j++) {
+		ElfW(Sym) *sym = &symtab[j];
+		Dl_info info;
+		void *h, *s;
+		if (ELF_ST_TYPE(sym->st_info) != STT_FUNC || sym->st_size <= 0) continue;
+		h = dlopen(NULL, RTLD_NOW|RTLD_LOCAL);
+		if (!h) continue;
+		s = dlsym(h, strtab + sym->st_name);
+		if (!s) continue;
+		if (dladdr(s, &info)) {
+		    dladdr_fbase = (uintptr_t)info.dli_fbase;
+		    break;
+		}
+	    }
+	    if (ehdr->e_type == ET_EXEC) {
+		obj->base_addr = 0;
+	    }
+	    else {
+		/* PIE (position-independent executable) */
+		obj->base_addr = dladdr_fbase;
+	    }
+	}
+    }
+
+    if (!symtab_shdr) {
+	symtab_shdr = dynsym_shdr;
+	strtab_shdr = dynstr_shdr;
+    }
+
+    if (symtab_shdr && strtab_shdr) {
+	char *strtab = file + strtab_shdr->sh_offset;
+	ElfW(Sym) *symtab = (ElfW(Sym) *)(file + symtab_shdr->sh_offset);
+	int symtab_count = (int)(symtab_shdr->sh_size / sizeof(ElfW(Sym)));
+	for (j = 0; j < symtab_count; j++) {
+	    ElfW(Sym) *sym = &symtab[j];
+	    uintptr_t saddr = (uintptr_t)sym->st_value + obj->base_addr;
+	    if (ELF_ST_TYPE(sym->st_info) != STT_FUNC || sym->st_size <= 0) continue;
+	    for (i = offset; i < num_traces; i++) {
+		uintptr_t d = (uintptr_t)traces[i] - saddr;
+		if (lines[i].line > 0 || d <= 0 || d > (uintptr_t)sym->st_size)
+		    continue;
+		/* fill symbol name and addr from .symtab */
+		lines[i].sname = strtab + sym->st_name;
+		lines[i].saddr = saddr;
+		lines[i].path  = obj->path;
+		lines[i].base_addr = obj->base_addr;
+	    }
+	}
+    }
+
+    if (!debug_line_shdr) {
+	/* This file doesn't have .debug_line section,
+	   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);
+	}
+	goto finish;
+    }
+
+    parse_debug_line(num_traces, traces,
+		     file + debug_line_shdr->sh_offset,
+		     debug_line_shdr->sh_size,
+		     obj, lines, offset);
+finish:
+    return dladdr_fbase;
+fail:
+    return (uintptr_t)-1;
+}
+
+#define HAVE_MAIN_EXE_PATH
+#if defined(__FreeBSD__)
+# include <sys/sysctl.h>
+#endif
+/* ssize_t main_exe_path(void)
+ *
+ * store the path of the main executable to `binary_filename`,
+ * and returns strlen(binary_filename).
+ * it is NUL terminated.
+ */
+#if defined(__linux__)
+ssize_t
+main_exe_path(void)
+{
+# define PROC_SELF_EXE "/proc/self/exe"
+    ssize_t len = readlink(PROC_SELF_EXE, binary_filename, PATH_MAX);
+    binary_filename[len] = 0;
+    return len;
+}
+#elif defined(__FreeBSD__)
+ssize_t
+main_exe_path(void)
+{
+    int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
+    size_t len = PATH_MAX;
+    int err = sysctl(mib, 4, binary_filename, &len, NULL, 0);
+    if (err) {
+	kprintf("Can't get the path of ruby");
+	return -1;
+    }
+    len--; /* sysctl sets strlen+1 */
+    return len;
+}
+#else
+#undef HAVE_MAIN_EXE_PATH
+#endif
+
+void
+rb_dump_backtrace_with_lines(int num_traces, void **traces)
+{
+    int i;
+    /* async-signal unsafe */
+    line_info_t *lines = (line_info_t *)calloc(num_traces, sizeof(line_info_t));
+    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;
+	    }
+	}
+    }
+#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;
+		}
+	    }
+	    *p = info.dli_fbase;
+
+	    append_obj(&obj);
+	    obj->base_addr = (uintptr_t)info.dli_fbase;
+	    path = info.dli_fname;
+	    obj->path = path;
+	    lines[i].path = path;
+	    strcpy(binary_filename, path);
+	    fill_lines(num_traces, traces, 1, &obj, lines, i);
+	}
+next_line:
+	continue;
+    }
+
+    /* output */
+    for (i = 0; i < num_traces; i++) {
+	line_info_t *line = &lines[i];
+	uintptr_t addr = (uintptr_t)traces[i];
+	uintptr_t d = addr - line->saddr;
+	if (!line->path) {
+	    kprintf("[0x%lx]\n", addr);
+	}
+	else if (!line->saddr || !line->sname) {
+	    kprintf("%s [0x%lx]\n", line->path, addr);
+	}
+	else if (line->line <= 0) {
+	    kprintf("%s(%s+0x%lx) [0x%lx]\n", line->path, line->sname,
+		    d, addr);
+	}
+	else if (!line->filename) {
+	    kprintf("%s(%s+0x%lx) [0x%lx] ???:%d\n", line->path, line->sname,
+		    d, addr, line->line);
+	}
+	else if (line->dirname && line->dirname[0]) {
+	    kprintf("%s(%s+0x%lx) [0x%lx] %s/%s:%d\n", line->path, line->sname,
+		    d, addr, line->dirname, line->filename, line->line);
+	}
+	else {
+	    kprintf("%s(%s+0x%lx) [0x%lx] %s:%d\n", line->path, line->sname,
+		    d, addr, line->filename, line->line);
+	}
+	/* FreeBSD's backtrace may show _start and so on */
+	if (line->sname && strcmp("main", line->sname) == 0)
+	    break;
+    }
+
+    /* free */
+    while (obj) {
+	obj_info_t *o = obj;
+	obj = o->next;
+	if (o->fd) {
+	    munmap(o->mapped, o->mapped_size);
+	    close(o->fd);
+	}
+	free(o);
+    }
+    free(lines);
+    free(dladdr_fbases);
+}
+
+/* From FreeBSD's lib/libstand/printf.c */
+/*-
+ * Copyright (c) 1986, 1988, 1991, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ * (c) UNIX System Laboratories, Inc.
+ * All or some portions of this file are derived from material licensed
+ * to the University of California by American Telephone and Telegraph
+ * Co. or Unix System Laboratories, Inc. and are reproduced herein with
+ * the permission of UNIX System Laboratories, Inc.
+ *
+ * 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.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ *
+ *	@(#)subr_prf.c	8.3 (Berkeley) 1/21/94
+ */
+
+#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; }
+#define    hex2ascii(hex)  (hex2ascii_data[hex])
+char const hex2ascii_data[] = "0123456789abcdefghijklmnopqrstuvwxyz";
+static inline int imax(int a, int b) { return (a > b ? a : b); }
+static int kvprintf(char const *fmt, void (*func)(int), void *arg, int radix, va_list ap);
+
+static void putce(int c)
+{
+    char s[1];
+    ssize_t ret;
+
+    s[0] = (char)c;
+    ret = write(2, s, 1);
+    (void)ret;
+}
+
+int
+kprintf(const char *fmt, ...)
+{
+	va_list ap;
+	int retval;
+
+	va_start(ap, fmt);
+	retval = kvprintf(fmt, putce, NULL, 10, ap);
+	va_end(ap);
+	return retval;
+}
+
+/*
+ * Put a NUL-terminated ASCII number (base <= 36) in a buffer in reverse
+ * order; return an optional length and a pointer to the last character
+ * written in the buffer (i.e., the first character of the string).
+ * The buffer pointed to by `nbuf' must have length >= MAXNBUF.
+ */
+static char *
+ksprintn(char *nbuf, uintmax_t num, int base, int *lenp, int upper)
+{
+	char *p, c;
+
+	p = nbuf;
+	*p = '\0';
+	do {
+		c = hex2ascii(num % base);
+		*++p = upper ? toupper(c) : c;
+	} while (num /= base);
+	if (lenp)
+		*lenp = (int)(p - nbuf);
+	return (p);
+}
+
+/*
+ * Scaled down version of printf(3).
+ *
+ * Two additional formats:
+ *
+ * The format %b is supported to decode error registers.
+ * Its usage is:
+ *
+ *	printf("reg=%b\n", regval, "<base><arg>*");
+ *
+ * where <base> is the output base expressed as a control character, e.g.
+ * \10 gives octal; \20 gives hex.  Each arg is a sequence of characters,
+ * the first of which gives the bit number to be inspected (origin 1), and
+ * the next characters (up to a control character, i.e. a character <= 32),
+ * give the name of the register.  Thus:
+ *
+ *	kvprintf("reg=%b\n", 3, "\10\2BITTWO\1BITONE\n");
+ *
+ * would produce output:
+ *
+ *	reg=3<BITTWO,BITONE>
+ *
+ * XXX:  %D  -- Hexdump, takes pointer and separator string:
+ *		("%6D", ptr, ":")   -> XX:XX:XX:XX:XX:XX
+ *		("%*D", len, ptr, " " -> XX XX XX XX ...
+ */
+static int
+kvprintf(char const *fmt, void (*func)(int), void *arg, int radix, va_list ap)
+{
+#define PCHAR(c) {int cc=(c); if (func) (*func)(cc); else *d++ = cc; retval++; }
+	char nbuf[MAXNBUF];
+	char *d;
+	const char *p, *percent, *q;
+	unsigned char *up;
+	int ch, n;
+	uintmax_t num;
+	int base, lflag, qflag, tmp, width, ladjust, sharpflag, neg, sign, dot;
+	int cflag, hflag, jflag, tflag, zflag;
+	int dwidth, upper;
+	char padc;
+	int stop = 0, retval = 0;
+
+	num = 0;
+	if (!func)
+		d = (char *) arg;
+	else
+		d = NULL;
+
+	if (fmt == NULL)
+		fmt = "(fmt null)\n";
+
+	if (radix < 2 || radix > 36)
+		radix = 10;
+
+	for (;;) {
+		padc = ' ';
+		width = 0;
+		while ((ch = (unsigned char)*fmt++) != '%' || stop) {
+			if (ch == '\0')
+				return (retval);
+			PCHAR(ch);
+		}
+		percent = fmt - 1;
+		qflag = 0; lflag = 0; ladjust = 0; sharpflag = 0; neg = 0;
+		sign = 0; dot = 0; dwidth = 0; upper = 0;
+		cflag = 0; hflag = 0; jflag = 0; tflag = 0; zflag = 0;
+reswitch:	switch (ch = (unsigned char)*fmt++) {
+		case '.':
+			dot = 1;
+			goto reswitch;
+		case '#':
+			sharpflag = 1;
+			goto reswitch;
+		case '+':
+			sign = 1;
+			goto reswitch;
+		case '-':
+			ladjust = 1;
+			goto reswitch;
+		case '%':
+			PCHAR(ch);
+			break;
+		case '*':
+			if (!dot) {
+				width = va_arg(ap, int);
+				if (width < 0) {
+					ladjust = !ladjust;
+					width = -width;
+				}
+			} else {
+				dwidth = va_arg(ap, int);
+			}
+			goto reswitch;
+		case '0':
+			if (!dot) {
+				padc = '0';
+				goto reswitch;
+			}
+		case '1': case '2': case '3': case '4':
+		case '5': case '6': case '7': case '8': case '9':
+				for (n = 0;; ++fmt) {
+					n = n * 10 + ch - '0';
+					ch = *fmt;
+					if (ch < '0' || ch > '9')
+						break;
+				}
+			if (dot)
+				dwidth = n;
+			else
+				width = n;
+			goto reswitch;
+		case 'b':
+			num = (unsigned int)va_arg(ap, int);
+			p = va_arg(ap, char *);
+			for (q = ksprintn(nbuf, num, *p++, NULL, 0); *q;)
+				PCHAR(*q--);
+
+			if (num == 0)
+				break;
+
+			for (tmp = 0; *p;) {
+				n = *p++;
+				if (num & (1 << (n - 1))) {
+					PCHAR(tmp ? ',' : '<');
+					for (; (n = *p) > ' '; ++p)
+						PCHAR(n);
+					tmp = 1;
+				} else
+					for (; *p > ' '; ++p)
+						continue;
+			}
+			if (tmp)
+				PCHAR('>');
+			break;
+		case 'c':
+			PCHAR(va_arg(ap, int));
+			break;
+		case 'D':
+			up = va_arg(ap, unsigned char *);
+			p = va_arg(ap, char *);
+			if (!width)
+				width = 16;
+			while(width--) {
+				PCHAR(hex2ascii(*up >> 4));
+				PCHAR(hex2ascii(*up & 0x0f));
+				up++;
+				if (width)
+					for (q=p;*q;q++)
+						PCHAR(*q);
+			}
+			break;
+		case 'd':
+		case 'i':
+			base = 10;
+			sign = 1;
+			goto handle_sign;
+		case 'h':
+			if (hflag) {
+				hflag = 0;
+				cflag = 1;
+			} else
+				hflag = 1;
+			goto reswitch;
+		case 'j':
+			jflag = 1;
+			goto reswitch;
+		case 'l':
+			if (lflag) {
+				lflag = 0;
+				qflag = 1;
+			} else
+				lflag = 1;
+			goto reswitch;
+		case 'n':
+			if (jflag)
+				*(va_arg(ap, intmax_t *)) = retval;
+			else if (qflag)
+				*(va_arg(ap, int64_t *)) = retval;
+			else if (lflag)
+				*(va_arg(ap, long *)) = retval;
+			else if (zflag)
+				*(va_arg(ap, size_t *)) = retval;
+			else if (hflag)
+				*(va_arg(ap, short *)) = retval;
+			else if (cflag)
+				*(va_arg(ap, char *)) = retval;
+			else
+				*(va_arg(ap, int *)) = retval;
+			break;
+		case 'o':
+			base = 8;
+			goto handle_nosign;
+		case 'p':
+			base = 16;
+			sharpflag = (width == 0);
+			sign = 0;
+			num = (uintptr_t)va_arg(ap, void *);
+			goto number;
+		case 'q':
+			qflag = 1;
+			goto reswitch;
+		case 'r':
+			base = radix;
+			if (sign)
+				goto handle_sign;
+			goto handle_nosign;
+		case 's':
+			p = va_arg(ap, char *);
+			if (p == NULL)
+				p = "(null)";
+			if (!dot)
+				n = (int)strlen (p);
+			else
+				for (n = 0; n < dwidth && p[n]; n++)
+					continue;
+
+			width -= n;
+
+			if (!ladjust && width > 0)
+				while (width--)
+					PCHAR(padc);
+			while (n--)
+				PCHAR(*p++);
+			if (ladjust && width > 0)
+				while (width--)
+					PCHAR(padc);
+			break;
+		case 't':
+			tflag = 1;
+			goto reswitch;
+		case 'u':
+			base = 10;
+			goto handle_nosign;
+		case 'X':
+			upper = 1;
+		case 'x':
+			base = 16;
+			goto handle_nosign;
+		case 'y':
+			base = 16;
+			sign = 1;
+			goto handle_sign;
+		case 'z':
+			zflag = 1;
+			goto reswitch;
+handle_nosign:
+			sign = 0;
+			if (jflag)
+				num = va_arg(ap, uintmax_t);
+			else if (qflag)
+				num = va_arg(ap, uint64_t);
+			else if (tflag)
+				num = va_arg(ap, ptrdiff_t);
+			else if (lflag)
+				num = va_arg(ap, unsigned long);
+			else if (zflag)
+				num = va_arg(ap, size_t);
+			else if (hflag)
+				num = (unsigned short)va_arg(ap, int);
+			else if (cflag)
+				num = (unsigned char)va_arg(ap, int);
+			else
+				num = va_arg(ap, unsigned int);
+			goto number;
+handle_sign:
+			if (jflag)
+				num = va_arg(ap, intmax_t);
+			else if (qflag)
+				num = va_arg(ap, int64_t);
+			else if (tflag)
+				num = va_arg(ap, ptrdiff_t);
+			else if (lflag)
+				num = va_arg(ap, long);
+			else if (zflag)
+				num = va_arg(ap, ssize_t);
+			else if (hflag)
+				num = (short)va_arg(ap, int);
+			else if (cflag)
+				num = (char)va_arg(ap, int);
+			else
+				num = va_arg(ap, int);
+number:
+			if (sign && (intmax_t)num < 0) {
+				neg = 1;
+				num = -(intmax_t)num;
+			}
+			p = ksprintn(nbuf, num, base, &n, upper);
+			tmp = 0;
+			if (sharpflag && num != 0) {
+				if (base == 8)
+					tmp++;
+				else if (base == 16)
+					tmp += 2;
+			}
+			if (neg)
+				tmp++;
+
+			if (!ladjust && padc == '0')
+				dwidth = width - tmp;
+			width -= tmp + imax(dwidth, n);
+			dwidth -= n;
+			if (!ladjust)
+				while (width-- > 0)
+					PCHAR(' ');
+			if (neg)
+				PCHAR('-');
+			if (sharpflag && num != 0) {
+				if (base == 8) {
+					PCHAR('0');
+				} else if (base == 16) {
+					PCHAR('0');
+					PCHAR('x');
+				}
+			}
+			while (dwidth-- > 0)
+				PCHAR('0');
+
+			while (*p)
+				PCHAR(*p--);
+
+			if (ladjust)
+				while (width-- > 0)
+					PCHAR(' ');
+
+			break;
+		default:
+			while (percent < fmt)
+				PCHAR(*percent++);
+			/*
+			 * Since we ignore an formatting argument it is no
+			 * longer safe to obey the remaining formatting
+			 * arguments as the arguments will no longer match
+			 * the format specs.
+			 */
+			stop = 1;
+			break;
+		}
+	}
+#undef PCHAR
+}
+#else /* defined(USE_ELF) */
+#error not supported
+#endif
diff --git a/addr2line.h b/addr2line.h
new file mode 100644
index 0000000000..d99f010934
--- /dev/null
+++ b/addr2line.h
@@ -0,0 +1,21 @@
+/**********************************************************************
+
+  addr2line.h -
+
+  $Author$
+
+  Copyright (C) 2010 Shinichiro Hamaji
+
+**********************************************************************/
+
+#ifndef RUBY_ADDR2LINE_H
+#define RUBY_ADDR2LINE_H
+
+#ifdef USE_ELF
+
+void
+rb_dump_backtrace_with_lines(int num_traces, void **traces);
+
+#endif /* USE_ELF */
+
+#endif /* RUBY_ADDR2LINE_H */
diff --git a/appveyor.yml b/appveyor.yml
new file mode 100644
index 0000000000..2cda4817a6
--- /dev/null
+++ b/appveyor.yml
@@ -0,0 +1,37 @@
+---
+shallow_clone: true
+platform: x64
+install:
+  - SET
+  - '"C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\vcvarsall.bat" amd64'
+  - SET PATH=\usr\local\bin;C:\Ruby22-x64\bin;C:\Ruby21-x64\Devkit\mingw\bin;%PATH%;C:\msys64\usr\bin
+  - ruby --version
+  - 'cl'
+  - SET
+  - mkdir \usr\local\bin
+  - mkdir \usr\local\include
+  - mkdir \usr\local\lib
+  - ps: Start-FileDownload 'http://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.3.7-windows.zip'
+  - 7z x libressl-2.3.7-windows.zip
+  - copy libressl-2.3.7-windows\x64\libcrypto-37.lib \usr\local\lib\crypto.lib
+  - copy libressl-2.3.7-windows\x64\libssl-38.lib    \usr\local\lib\ssl.lib
+  - copy libressl-2.3.7-windows\x64\libcrypto-37.dll \usr\local\bin
+  - copy libressl-2.3.7-windows\x64\libssl-38.dll    \usr\local\bin
+  - xcopy /e libressl-2.3.7-windows\include          \usr\local\include
+  - ps: Start-FileDownload 'http://zlib.net/zlib128.zip'
+  - 7z x zlib128.zip
+  - cd zlib-1.2.8
+  - nmake -f win32/Makefile.msc
+  - copy zlib1.dll \usr\local\bin
+  - copy zlib.lib  \usr\local\lib
+  - copy zconf.h   \usr\local\include
+  - copy zlib.h    \usr\local\include
+build_script:
+  - cd %APPVEYOR_BUILD_FOLDER%
+  - win32\configure.bat --without-ext=+,dbm,gdbm,readline --with-opt-dir=/usr/local
+  - nmake -l up
+  - nmake -l
+  - nmake install-nodoc
+test_script:
+  - nmake -l "OPTS=-v -q" btest
+  - nmake -l "OPTS=-v -q" test-basic
diff --git a/array.c b/array.c
index 89f74d01ff..4e60177121 100644
--- a/array.c
+++ b/array.c
@@ -3,164 +3,500 @@
   array.c -
 
   $Author$
-  $Date$
   created at: Fri Aug  6 09:46:12 JST 1993
 
-  Copyright (C) 1993-2003 Yukihiro Matsumoto
+  Copyright (C) 1993-2007 Yukihiro Matsumoto
   Copyright (C) 2000  Network Applied Communication Laboratory, Inc.
   Copyright (C) 2000  Information-technology Promotion Agency, Japan
 
 **********************************************************************/
 
-#include "ruby.h"
-#include "util.h"
-#include "st.h"
+#include "internal.h"
+#include "ruby/util.h"
+#include "ruby/st.h"
+#include "probes.h"
+#include "id.h"
+
+#ifndef ARRAY_DEBUG
+# define NDEBUG
+#endif
+#include "ruby_assert.h"
 
 VALUE rb_cArray;
-static ID id_cmp;
+
+static ID id_cmp, id_div, id_power;
 
 #define ARY_DEFAULT_SIZE 16
-#define ARY_MAX_SIZE (LONG_MAX / sizeof(VALUE))
+#define ARY_MAX_SIZE (LONG_MAX / (int)sizeof(VALUE))
+
+# define ARY_SHARED_P(ary) \
+    (assert(!FL_TEST((ary), ELTS_SHARED) || !FL_TEST((ary), RARRAY_EMBED_FLAG)), \
+     FL_TEST((ary),ELTS_SHARED)!=0)
+# define ARY_EMBED_P(ary) \
+    (assert(!FL_TEST((ary), ELTS_SHARED) || !FL_TEST((ary), RARRAY_EMBED_FLAG)), \
+     FL_TEST((ary), RARRAY_EMBED_FLAG)!=0)
+
+#define ARY_HEAP_PTR(a) (assert(!ARY_EMBED_P(a)), RARRAY(a)->as.heap.ptr)
+#define ARY_HEAP_LEN(a) (assert(!ARY_EMBED_P(a)), RARRAY(a)->as.heap.len)
+#define ARY_EMBED_PTR(a) (assert(ARY_EMBED_P(a)), RARRAY(a)->as.ary)
+#define ARY_EMBED_LEN(a) \
+    (assert(ARY_EMBED_P(a)), \
+     (long)((RBASIC(a)->flags >> RARRAY_EMBED_LEN_SHIFT) & \
+	 (RARRAY_EMBED_LEN_MASK >> RARRAY_EMBED_LEN_SHIFT)))
+#define ARY_HEAP_SIZE(a) (assert(!ARY_EMBED_P(a)), assert(ARY_OWNS_HEAP_P(a)), RARRAY(a)->as.heap.aux.capa * sizeof(VALUE))
+
+#define ARY_OWNS_HEAP_P(a) (!FL_TEST((a), ELTS_SHARED|RARRAY_EMBED_FLAG))
+#define FL_SET_EMBED(a) do { \
+    assert(!ARY_SHARED_P(a)); \
+    FL_SET((a), RARRAY_EMBED_FLAG); \
+} while (0)
+#define FL_UNSET_EMBED(ary) FL_UNSET((ary), RARRAY_EMBED_FLAG|RARRAY_EMBED_LEN_MASK)
+#define FL_SET_SHARED(ary) do { \
+    assert(!ARY_EMBED_P(ary)); \
+    FL_SET((ary), ELTS_SHARED); \
+} while (0)
+#define FL_UNSET_SHARED(ary) FL_UNSET((ary), ELTS_SHARED)
+
+#define ARY_SET_PTR(ary, p) do { \
+    assert(!ARY_EMBED_P(ary)); \
+    assert(!OBJ_FROZEN(ary)); \
+    RARRAY(ary)->as.heap.ptr = (p); \
+} while (0)
+#define ARY_SET_EMBED_LEN(ary, n) do { \
+    long tmp_n = (n); \
+    assert(ARY_EMBED_P(ary)); \
+    assert(!OBJ_FROZEN(ary)); \
+    RBASIC(ary)->flags &= ~RARRAY_EMBED_LEN_MASK; \
+    RBASIC(ary)->flags |= (tmp_n) << RARRAY_EMBED_LEN_SHIFT; \
+} while (0)
+#define ARY_SET_HEAP_LEN(ary, n) do { \
+    assert(!ARY_EMBED_P(ary)); \
+    RARRAY(ary)->as.heap.len = (n); \
+} while (0)
+#define ARY_SET_LEN(ary, n) do { \
+    if (ARY_EMBED_P(ary)) { \
+        ARY_SET_EMBED_LEN((ary), (n)); \
+    } \
+    else { \
+        ARY_SET_HEAP_LEN((ary), (n)); \
+    } \
+    assert(RARRAY_LEN(ary) == (n)); \
+} while (0)
+#define ARY_INCREASE_PTR(ary, n) do  { \
+    assert(!ARY_EMBED_P(ary)); \
+    assert(!OBJ_FROZEN(ary)); \
+    RARRAY(ary)->as.heap.ptr += (n); \
+} while (0)
+#define ARY_INCREASE_LEN(ary, n) do  { \
+    assert(!OBJ_FROZEN(ary)); \
+    if (ARY_EMBED_P(ary)) { \
+        ARY_SET_EMBED_LEN((ary), RARRAY_LEN(ary)+(n)); \
+    } \
+    else { \
+        RARRAY(ary)->as.heap.len += (n); \
+    } \
+} while (0)
+
+#define ARY_CAPA(ary) (ARY_EMBED_P(ary) ? RARRAY_EMBED_LEN_MAX : \
+		       ARY_SHARED_ROOT_P(ary) ? RARRAY_LEN(ary) : RARRAY(ary)->as.heap.aux.capa)
+#define ARY_SET_CAPA(ary, n) do { \
+    assert(!ARY_EMBED_P(ary)); \
+    assert(!ARY_SHARED_P(ary)); \
+    assert(!OBJ_FROZEN(ary)); \
+    RARRAY(ary)->as.heap.aux.capa = (n); \
+} while (0)
+
+#define ARY_SHARED(ary) (assert(ARY_SHARED_P(ary)), RARRAY(ary)->as.heap.aux.shared)
+#define ARY_SET_SHARED(ary, value) do { \
+    const VALUE _ary_ = (ary); \
+    const VALUE _value_ = (value); \
+    assert(!ARY_EMBED_P(_ary_)); \
+    assert(ARY_SHARED_P(_ary_)); \
+    assert(ARY_SHARED_ROOT_P(_value_)); \
+    RB_OBJ_WRITE(_ary_, &RARRAY(_ary_)->as.heap.aux.shared, _value_); \
+} while (0)
+#define RARRAY_SHARED_ROOT_FLAG FL_USER5
+#define ARY_SHARED_ROOT_P(ary) (FL_TEST((ary), RARRAY_SHARED_ROOT_FLAG))
+#define ARY_SHARED_NUM(ary) \
+    (assert(ARY_SHARED_ROOT_P(ary)), RARRAY(ary)->as.heap.aux.capa)
+#define ARY_SHARED_OCCUPIED(ary) (ARY_SHARED_NUM(ary) == 1)
+#define ARY_SET_SHARED_NUM(ary, value) do { \
+    assert(ARY_SHARED_ROOT_P(ary)); \
+    RARRAY(ary)->as.heap.aux.capa = (value); \
+} while (0)
+#define FL_SET_SHARED_ROOT(ary) do { \
+    assert(!ARY_EMBED_P(ary)); \
+    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(mem, size)
-    register VALUE *mem;
-    register long size;
+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(mem, size, val)
-    register VALUE *mem;
-    register long size;
-    register VALUE val;
+memfill(register VALUE *mem, register long size, register VALUE val)
 {
     while (size--) {
 	*mem++ = val;
     }
 }
 
-#define ARY_TMPLOCK  FL_USER1
+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)
+{
+    assert(RARRAY_LEN(ary) <= capacity);
+    assert(!OBJ_FROZEN(ary));
+    assert(!ARY_SHARED_P(ary));
+    if (capacity > RARRAY_EMBED_LEN_MAX) {
+        if (ARY_EMBED_P(ary)) {
+            long len = ARY_EMBED_LEN(ary);
+            VALUE *ptr = ALLOC_N(VALUE, (capacity));
+            MEMCPY(ptr, ARY_EMBED_PTR(ary), VALUE, len);
+            FL_UNSET_EMBED(ary);
+            ARY_SET_PTR(ary, ptr);
+            ARY_SET_HEAP_LEN(ary, len);
+        }
+        else {
+	    SIZED_REALLOC_N(RARRAY(ary)->as.heap.ptr, VALUE, capacity, RARRAY(ary)->as.heap.aux.capa);
+        }
+        ARY_SET_CAPA(ary, (capacity));
+    }
+    else {
+        if (!ARY_EMBED_P(ary)) {
+            long len = RARRAY_LEN(ary);
+	    const VALUE *ptr = RARRAY_CONST_PTR(ary);
+
+	    if (len > capacity) len = capacity;
+            MEMCPY((VALUE *)RARRAY(ary)->as.ary, ptr, VALUE, len);
+            FL_SET_EMBED(ary);
+            ARY_SET_LEN(ary, len);
+	    ruby_xfree((VALUE *)ptr);
+        }
+    }
+}
 
 static inline void
-rb_ary_modify_check(ary)
-    VALUE ary;
+ary_shrink_capa(VALUE ary)
 {
-    if (OBJ_FROZEN(ary)) rb_error_frozen("array");
-    if (FL_TEST(ary, ARY_TMPLOCK))
-	rb_raise(rb_eRuntimeError, "can't modify array during iteration");
-    if (!OBJ_TAINTED(ary) && rb_safe_level() >= 4)
-	rb_raise(rb_eSecurityError, "Insecure: can't modify array");
+    long capacity = ARY_HEAP_LEN(ary);
+    long old_capa = RARRAY(ary)->as.heap.aux.capa;
+    assert(!ARY_SHARED_P(ary));
+    assert(old_capa >= capacity);
+    if (old_capa > capacity)
+	REALLOC_N(RARRAY(ary)->as.heap.ptr, VALUE, capacity);
 }
 
 static void
-rb_ary_modify(ary)
-    VALUE ary;
+ary_double_capa(VALUE ary, long min)
+{
+    long new_capa = ARY_CAPA(ary) / 2;
+
+    if (new_capa < ARY_DEFAULT_SIZE) {
+	new_capa = ARY_DEFAULT_SIZE;
+    }
+    if (new_capa >= ARY_MAX_SIZE - min) {
+	new_capa = (ARY_MAX_SIZE - min) / 2;
+    }
+    new_capa += min;
+    ary_resize_capa(ary, new_capa);
+}
+
+static void
+rb_ary_decrement_share(VALUE shared)
+{
+    if (shared) {
+	long num = ARY_SHARED_NUM(shared) - 1;
+	if (num == 0) {
+	    rb_ary_free(shared);
+	    rb_gc_force_recycle(shared);
+	}
+	else if (num > 0) {
+	    ARY_SET_SHARED_NUM(shared, num);
+	}
+    }
+}
+
+static void
+rb_ary_unshare(VALUE ary)
+{
+    VALUE shared = RARRAY(ary)->as.heap.aux.shared;
+    rb_ary_decrement_share(shared);
+    FL_UNSET_SHARED(ary);
+}
+
+static inline void
+rb_ary_unshare_safe(VALUE ary)
+{
+    if (ARY_SHARED_P(ary) && !ARY_EMBED_P(ary)) {
+	rb_ary_unshare(ary);
+    }
+}
+
+static VALUE
+rb_ary_increment_share(VALUE shared)
+{
+    long num = ARY_SHARED_NUM(shared);
+    if (num >= 0) {
+	ARY_SET_SHARED_NUM(shared, num + 1);
+    }
+    return shared;
+}
+
+static void
+rb_ary_set_shared(VALUE ary, VALUE shared)
+{
+    rb_ary_increment_share(shared);
+    FL_SET_SHARED(ary);
+    ARY_SET_SHARED(ary, shared);
+}
+
+static inline void
+rb_ary_modify_check(VALUE ary)
 {
-    VALUE *ptr;
+    rb_check_frozen(ary);
+}
 
+void
+rb_ary_modify(VALUE ary)
+{
     rb_ary_modify_check(ary);
-    if (FL_TEST(ary, ELTS_SHARED)) {
-	ptr = ALLOC_N(VALUE, RARRAY(ary)->len);
-	FL_UNSET(ary, ELTS_SHARED);
-	RARRAY(ary)->aux.capa = RARRAY(ary)->len;
-	MEMCPY(ptr, RARRAY(ary)->ptr, VALUE, RARRAY(ary)->len);
-	RARRAY(ary)->ptr = ptr;
+    if (ARY_SHARED_P(ary)) {
+	long shared_len, len = RARRAY_LEN(ary);
+	VALUE shared = ARY_SHARED(ary);
+        if (len <= RARRAY_EMBED_LEN_MAX) {
+	    const VALUE *ptr = ARY_HEAP_PTR(ary);
+            FL_UNSET_SHARED(ary);
+            FL_SET_EMBED(ary);
+	    MEMCPY((VALUE *)ARY_EMBED_PTR(ary), ptr, VALUE, len);
+            rb_ary_decrement_share(shared);
+            ARY_SET_EMBED_LEN(ary, len);
+        }
+	else if (ARY_SHARED_OCCUPIED(shared) && len > ((shared_len = RARRAY_LEN(shared))>>1)) {
+	    long shift = RARRAY_CONST_PTR(ary) - RARRAY_CONST_PTR(shared);
+	    FL_UNSET_SHARED(ary);
+	    ARY_SET_PTR(ary, RARRAY_CONST_PTR(shared));
+	    ARY_SET_CAPA(ary, shared_len);
+	    RARRAY_PTR_USE(ary, ptr, {
+		MEMMOVE(ptr, ptr+shift, VALUE, len);
+	    });
+	    FL_SET_EMBED(shared);
+	    rb_ary_decrement_share(shared);
+	}
+        else {
+            VALUE *ptr = ALLOC_N(VALUE, len);
+            MEMCPY(ptr, RARRAY_CONST_PTR(ary), VALUE, len);
+            rb_ary_unshare(ary);
+            ARY_SET_CAPA(ary, len);
+            ARY_SET_PTR(ary, ptr);
+        }
+
+	rb_gc_writebarrier_remember(ary);
+    }
+}
+
+static VALUE
+ary_ensure_room_for_push(VALUE ary, long add_len)
+{
+    long old_len = RARRAY_LEN(ary);
+    long new_len = old_len + add_len;
+    long capa;
+
+    if (old_len > ARY_MAX_SIZE - add_len) {
+	rb_raise(rb_eIndexError, "index %ld too big", new_len);
+    }
+    if (ARY_SHARED_P(ary)) {
+	if (new_len > RARRAY_EMBED_LEN_MAX) {
+	    VALUE shared = ARY_SHARED(ary);
+	    if (ARY_SHARED_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 */
+		    rb_ary_modify(ary);
+		    capa = ARY_CAPA(ary);
+		    if (new_len > capa - (capa >> 6)) {
+			ary_double_capa(ary, new_len);
+		    }
+		    return ary;
+		}
+	    }
+	}
+    }
+    rb_ary_modify(ary);
+    capa = ARY_CAPA(ary);
+    if (new_len > capa) {
+	ary_double_capa(ary, new_len);
     }
+
+    return ary;
 }
 
+/*
+ *  call-seq:
+ *      ary.freeze -> ary
+ *
+ *  Calls Object#freeze on +ary+ to prevent any further
+ *  modification. A RuntimeError will be raised if a modification
+ *  attempt is made.
+ *
+ */
+
 VALUE
-rb_ary_freeze(ary)
-    VALUE ary;
+rb_ary_freeze(VALUE ary)
 {
     return rb_obj_freeze(ary);
 }
 
 /*
  *  call-seq:
- *     array.frozen?  -> true or false
+ *     ary.frozen?  -> true or false
  *
- *  Return <code>true</code> if this array is frozen (or temporarily frozen
- *  while being sorted).
+ *  Return +true+ if this array is frozen (or temporarily frozen
+ *  while being sorted). See also Object#frozen?
  */
 
 static VALUE
-rb_ary_frozen_p(ary)
-    VALUE ary;
+rb_ary_frozen_p(VALUE ary)
 {
     if (OBJ_FROZEN(ary)) return Qtrue;
-    if (FL_TEST(ary, ARY_TMPLOCK)) return Qtrue;
     return Qfalse;
 }
 
-static VALUE ary_alloc _((VALUE));
-static VALUE
-ary_alloc(klass)
-    VALUE klass;
+/* This can be used to take a snapshot of an array (with
+   e.g. rb_ary_replace) and check later whether the array has been
+   modified from the snapshot.  The snapshot is cheap, though if
+   something does modify the array it will pay the cost of copying
+   it.  If Array#pop or Array#shift has been called, the array will
+   be still shared with the snapshot, but the array length will
+   differ. */
+VALUE
+rb_ary_shared_with_p(VALUE ary1, VALUE ary2)
 {
-    NEWOBJ(ary, struct RArray);
-    OBJSETUP(ary, klass, T_ARRAY);
-
-    ary->len = 0;
-    ary->ptr = 0;
-    ary->aux.capa = 0;
+    if (!ARY_EMBED_P(ary1) && ARY_SHARED_P(ary1) &&
+	!ARY_EMBED_P(ary2) && ARY_SHARED_P(ary2) &&
+	RARRAY(ary1)->as.heap.aux.shared == RARRAY(ary2)->as.heap.aux.shared &&
+	RARRAY(ary1)->as.heap.len == RARRAY(ary2)->as.heap.len) {
+	return Qtrue;
+    }
+    return Qfalse;
+}
 
+static VALUE
+ary_alloc(VALUE klass)
+{
+    NEWOBJ_OF(ary, struct RArray, klass, T_ARRAY | RARRAY_EMBED_FLAG | (RGENGC_WB_PROTECTED_ARRAY ? FL_WB_PROTECTED : 0));
+    /* Created array is:
+     *   FL_SET_EMBED((VALUE)ary);
+     *   ARY_SET_EMBED_LEN((VALUE)ary, 0);
+     */
     return (VALUE)ary;
 }
 
 static VALUE
-ary_new(klass, len)
-    VALUE klass;
-    long len;
+empty_ary_alloc(VALUE klass)
 {
-    VALUE ary = ary_alloc(klass);
+    RUBY_DTRACE_CREATE_HOOK(ARRAY, 0);
+    return ary_alloc(klass);
+}
 
-    if (len < 0) {
+static VALUE
+ary_new(VALUE klass, long capa)
+{
+    VALUE ary,*ptr;
+
+    if (capa < 0) {
 	rb_raise(rb_eArgError, "negative array size (or size too big)");
     }
-    if (len > ARY_MAX_SIZE) {
+    if (capa > ARY_MAX_SIZE) {
 	rb_raise(rb_eArgError, "array size too big");
     }
-    if (len == 0) len++;
-    RARRAY(ary)->ptr = ALLOC_N(VALUE, len);
-    RARRAY(ary)->aux.capa = len;
+
+    RUBY_DTRACE_CREATE_HOOK(ARRAY, capa);
+
+    ary = ary_alloc(klass);
+    if (capa > RARRAY_EMBED_LEN_MAX) {
+	ptr = ALLOC_N(VALUE, capa);
+        FL_UNSET_EMBED(ary);
+        ARY_SET_PTR(ary, ptr);
+        ARY_SET_CAPA(ary, capa);
+        ARY_SET_HEAP_LEN(ary, 0);
+    }
 
     return ary;
 }
 
 VALUE
-rb_ary_new2(len)
-    long len;
+rb_ary_new_capa(long capa)
 {
-    return ary_new(rb_cArray, len);
+    return ary_new(rb_cArray, capa);
 }
 
-
 VALUE
-rb_ary_new()
+rb_ary_new(void)
 {
-    return rb_ary_new2(ARY_DEFAULT_SIZE);
+    return rb_ary_new2(RARRAY_EMBED_LEN_MAX);
 }
 
-#ifdef HAVE_STDARG_PROTOTYPES
-#include <stdarg.h>
-#define va_init_list(a,b) va_start(a,b)
-#else
-#include <varargs.h>
-#define va_init_list(a,b) va_start(a)
-#endif
-
 VALUE
-#ifdef HAVE_STDARG_PROTOTYPES
-rb_ary_new3(long n, ...)
-#else
-rb_ary_new3(n, va_alist)
-    long n;
-    va_dcl
-#endif
+(rb_ary_new_from_args)(long n, ...)
 {
     va_list ar;
     VALUE ary;
@@ -168,141 +504,240 @@ rb_ary_new3(n, va_alist)
 
     ary = rb_ary_new2(n);
 
-    va_init_list(ar, n);
+    va_start(ar, n);
     for (i=0; i<n; i++) {
-	RARRAY(ary)->ptr[i] = va_arg(ar, VALUE);
+	ARY_SET(ary, i, va_arg(ar, VALUE));
     }
     va_end(ar);
 
-    RARRAY(ary)->len = n;
+    ARY_SET_LEN(ary, n);
     return ary;
 }
 
 VALUE
-rb_ary_new4(n, elts)
-    long n;
-    const VALUE *elts;
+rb_ary_new_from_values(long n, const VALUE *elts)
 {
     VALUE ary;
 
     ary = rb_ary_new2(n);
     if (n > 0 && elts) {
-	MEMCPY(RARRAY(ary)->ptr, elts, VALUE, n);
+	ary_memcpy(ary, 0, n, elts);
+	ARY_SET_LEN(ary, n);
     }
 
-    /* This assignment to len will be moved to the above "if" block in Ruby 1.9 */
-    RARRAY(ary)->len = n;
+    return ary;
+}
+
+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;
 }
 
-static VALUE
-ary_make_shared(ary)
-    VALUE ary;
+void
+rb_ary_free(VALUE ary)
+{
+    if (ARY_OWNS_HEAP_P(ary)) {
+	ruby_sized_xfree((void *)ARY_HEAP_PTR(ary), ARY_HEAP_SIZE(ary));
+    }
+}
+
+RUBY_FUNC_EXPORTED size_t
+rb_ary_memsize(VALUE ary)
+{
+    if (ARY_OWNS_HEAP_P(ary)) {
+	return RARRAY(ary)->as.heap.aux.capa * sizeof(VALUE);
+    }
+    else {
+	return 0;
+    }
+}
+
+static inline void
+ary_discard(VALUE ary)
 {
-    if (!FL_TEST(ary, ELTS_SHARED)) {
-	NEWOBJ(shared, struct RArray);
-	OBJSETUP(shared, rb_cArray, T_ARRAY);
+    rb_ary_free(ary);
+    RBASIC(ary)->flags |= RARRAY_EMBED_FLAG;
+    RBASIC(ary)->flags &= ~RARRAY_EMBED_LEN_MASK;
+}
 
-	shared->len = RARRAY(ary)->len;
-	shared->ptr = RARRAY(ary)->ptr;
-	shared->aux.capa = RARRAY(ary)->aux.capa;
-	RARRAY(ary)->aux.shared = (VALUE)shared;
-	FL_SET(ary, ELTS_SHARED);
+static VALUE
+ary_make_shared(VALUE ary)
+{
+    assert(!ARY_EMBED_P(ary));
+    if (ARY_SHARED_P(ary)) {
+	return ARY_SHARED(ary);
+    }
+    else if (ARY_SHARED_ROOT_P(ary)) {
+	return ary;
+    }
+    else if (OBJ_FROZEN(ary)) {
+	ary_shrink_capa(ary);
+	FL_SET_SHARED_ROOT(ary);
+	ARY_SET_SHARED_NUM(ary, 1);
+	return 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));
+        FL_UNSET_EMBED(shared);
+
+	ARY_SET_LEN((VALUE)shared, capa);
+	ARY_SET_PTR((VALUE)shared, RARRAY_CONST_PTR(ary));
+	ary_mem_clear((VALUE)shared, len, capa - len);
+	FL_SET_SHARED_ROOT(shared);
+	ARY_SET_SHARED_NUM((VALUE)shared, 1);
+	FL_SET_SHARED(ary);
+	ARY_SET_SHARED(ary, (VALUE)shared);
 	OBJ_FREEZE(shared);
 	return (VALUE)shared;
     }
+}
+
+static VALUE
+ary_make_substitution(VALUE ary)
+{
+    long len = RARRAY_LEN(ary);
+
+    if (len <= RARRAY_EMBED_LEN_MAX) {
+	VALUE subst = rb_ary_new2(len);
+	ary_memcpy(subst, 0, len, RARRAY_CONST_PTR(ary));
+        ARY_SET_EMBED_LEN(subst, len);
+        return subst;
+    }
     else {
-	return RARRAY(ary)->aux.shared;
+        return rb_ary_increment_share(ary_make_shared(ary));
     }
 }
 
 VALUE
-rb_assoc_new(car, cdr)
-    VALUE car, cdr;
+rb_assoc_new(VALUE car, VALUE cdr)
 {
-    VALUE ary;
-
-    ary = rb_ary_new2(2);
-    RARRAY(ary)->ptr[0] = car;
-    RARRAY(ary)->ptr[1] = cdr;
-    RARRAY(ary)->len = 2;
-
-    return ary;
+    return rb_ary_new3(2, car, cdr);
 }
 
 static VALUE
-to_ary(ary)
-    VALUE ary;
+to_ary(VALUE ary)
 {
     return rb_convert_type(ary, T_ARRAY, "Array", "to_ary");
 }
 
 VALUE
-rb_check_array_type(ary)
-    VALUE ary;
+rb_check_array_type(VALUE ary)
 {
     return rb_check_convert_type(ary, T_ARRAY, "Array", "to_ary");
 }
 
-static VALUE rb_ary_replace _((VALUE, VALUE));
+/*
+ *  call-seq:
+ *     Array.try_convert(obj) -> array or nil
+ *
+ *  Tries to convert +obj+ into an array, using +to_ary+ method.  Returns the
+ *  converted array or +nil+ if +obj+ cannot be converted for any reason.
+ *  This method can be used to check if an argument is an array.
+ *
+ *     Array.try_convert([1])   #=> [1]
+ *     Array.try_convert("1")   #=> nil
+ *
+ *     if tmp = Array.try_convert(arg)
+ *       # the argument is an array
+ *     elsif tmp = String.try_convert(arg)
+ *       # the argument is a string
+ *     end
+ *
+ */
+
+static VALUE
+rb_ary_s_try_convert(VALUE dummy, VALUE ary)
+{
+    return rb_check_array_type(ary);
+}
 
 /*
  *  call-seq:
- *     Array.new(size=0, obj=nil)
+ *     Array.new(size=0, default=nil)
  *     Array.new(array)
  *     Array.new(size) {|index| block }
  *
- *  Returns a new array. In the first form, the new array is
- *  empty. In the second it is created with _size_ copies of _obj_
- *  (that is, _size_ references to the same
- *  _obj_). The third form creates a copy of the array
- *  passed as a parameter (the array is generated by calling
- *  to_ary  on the parameter). In the last form, an array
- *  of the given size is created. Each element in this array is
- *  calculated by passing the element's index to the given block and
- *  storing the return value.
- *
- *     Array.new
- *     Array.new(2)
- *     Array.new(5, "A")
- * 
- *     # only one copy of the object is created
+ *  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+.
+ *
+ *  The second form creates a copy of the array passed as a parameter (the
+ *  array is generated by calling to_ary on the parameter).
+ *
+ *    first_array = ["Matz", "Guido"]
+ *
+ *    second_array = Array.new(first_array) #=> ["Matz", "Guido"]
+ *
+ *    first_array.equal? second_array       #=> false
+ *
+ *  In the last form, an array of the given size is created.  Each element in
+ *  this array is created by passing the element's index to the given block
+ *  and storing the return value.
+ *
+ *    Array.new(3){ |index| index ** 2 }
+ *    # => [0, 1, 4]
+ *
+ *  == Common gotchas
+ *
+ *  When sending the second parameter, the same object will be used as the
+ *  value for all the array elements:
+ *
  *     a = Array.new(2, Hash.new)
+ *     # => [{}, {}]
+ *
  *     a[0]['cat'] = 'feline'
- *     a
+ *     a # => [{"cat"=>"feline"}, {"cat"=>"feline"}]
+ *
  *     a[1]['cat'] = 'Felix'
- *     a
- * 
- *     # here multiple copies are created
+ *     a # => [{"cat"=>"Felix"}, {"cat"=>"Felix"}]
+ *
+ *  Since all the Array elements store the same hash, changes to one of them
+ *  will affect them all.
+ *
+ *  If multiple copies are what you want, you should use the block
+ *  version which uses the result of that block each time an element
+ *  of the array needs to be initialized:
+ *
  *     a = Array.new(2) { Hash.new }
  *     a[0]['cat'] = 'feline'
- *     a
- * 
- *     squares = Array.new(5) {|i| i*i}
- *     squares
- * 
- *     copy = Array.new(squares)
+ *     a # => [{"cat"=>"feline"}, {}]
+ *
  */
 
 static VALUE
-rb_ary_initialize(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_initialize(int argc, VALUE *argv, VALUE ary)
 {
     long len;
     VALUE size, val;
 
     rb_ary_modify(ary);
-    if (rb_scan_args(argc, argv, "02", &size, &val) == 0) {
-	RARRAY(ary)->len = 0;
+    if (argc == 0) {
+	if (ARY_OWNS_HEAP_P(ary) && RARRAY_CONST_PTR(ary) != 0) {
+	    ruby_sized_xfree((void *)RARRAY_CONST_PTR(ary), ARY_HEAP_SIZE(ary));
+	}
+        rb_ary_unshare_safe(ary);
+        FL_SET_EMBED(ary);
+	ARY_SET_EMBED_LEN(ary, 0);
 	if (rb_block_given_p()) {
 	    rb_warning("given block not used");
 	}
 	return ary;
     }
-
+    rb_scan_args(argc, argv, "02", &size, &val);
     if (argc == 1 && !FIXNUM_P(size)) {
 	val = rb_check_array_type(size);
 	if (!NIL_P(val)) {
@@ -312,16 +747,16 @@ rb_ary_initialize(argc, argv, 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");
     }
-    if (len > RARRAY(ary)->aux.capa) {
-	REALLOC_N(RARRAY(ary)->ptr, VALUE, len);
-	RARRAY(ary)->aux.capa = len;
-    }
+    /* recheck after argument conversion */
+    rb_ary_modify(ary);
+    ary_resize_capa(ary, len);
     if (rb_block_given_p()) {
 	long i;
 
@@ -330,54 +765,46 @@ rb_ary_initialize(argc, argv, ary)
 	}
 	for (i=0; i<len; i++) {
 	    rb_ary_store(ary, i, rb_yield(LONG2NUM(i)));
-	    RARRAY(ary)->len = i + 1;
+	    ARY_SET_LEN(ary, i + 1);
 	}
     }
     else {
-	memfill(RARRAY(ary)->ptr, len, val);
-	RARRAY(ary)->len = len;
+	ary_memfill(ary, 0, len, val);
+	ARY_SET_LEN(ary, len);
     }
-
     return ary;
 }
 
-
-/* 
-* Returns a new array populated with the given objects. 
-*
-*   Array.[]( 1, 'a', /^A/ )
-*   Array[ 1, 'a', /^A/ ]
-*   [ 1, 'a', /^A/ ]
-*/
+/*
+ * Returns a new array populated with the given objects.
+ *
+ *   Array.[]( 1, 'a', /^A/ ) # => [1, "a", /^A/]
+ *   Array[ 1, 'a', /^A/ ]    # => [1, "a", /^A/]
+ *   [ 1, 'a', /^A/ ]         # => [1, "a", /^A/]
+ */
 
 static VALUE
-rb_ary_s_create(argc, argv, klass)
-    int argc;
-    VALUE *argv;
-    VALUE klass;
+rb_ary_s_create(int argc, VALUE *argv, VALUE klass)
 {
-    VALUE ary = ary_alloc(klass);
-
-    if (argc > 0) {
-	RARRAY(ary)->ptr = ALLOC_N(VALUE, argc);
-	MEMCPY(RARRAY(ary)->ptr, argv, VALUE, argc);
+    VALUE ary = ary_new(klass, argc);
+    if (argc > 0 && argv) {
+        ary_memcpy(ary, 0, argc, argv);
+        ARY_SET_LEN(ary, argc);
     }
-    RARRAY(ary)->len = RARRAY(ary)->aux.capa = argc;
 
     return ary;
 }
 
 void
-rb_ary_store(ary, idx, val)
-    VALUE ary;
-    long idx;
-    VALUE val;
+rb_ary_store(VALUE ary, long idx, VALUE val)
 {
+    long len = RARRAY_LEN(ary);
+
     if (idx < 0) {
-	idx += RARRAY(ary)->len;
+	idx += len;
 	if (idx < 0) {
-	    rb_raise(rb_eIndexError, "index %ld out of array",
-		    idx - RARRAY(ary)->len);
+	    rb_raise(rb_eIndexError, "index %ld too small for array; minimum: %ld",
+		     idx - len, -len);
 	}
     }
     else if (idx >= ARY_MAX_SIZE) {
@@ -385,78 +812,86 @@ rb_ary_store(ary, idx, val)
     }
 
     rb_ary_modify(ary);
-    if (idx >= RARRAY(ary)->aux.capa) {
-	long new_capa = RARRAY(ary)->aux.capa / 2;
-
-	if (new_capa < ARY_DEFAULT_SIZE) {
-	    new_capa = ARY_DEFAULT_SIZE;
-	}
-	if (new_capa >= ARY_MAX_SIZE - idx) {
-	    new_capa = (ARY_MAX_SIZE - idx) / 2;
-	}
-	new_capa += idx;
-	REALLOC_N(RARRAY(ary)->ptr, VALUE, new_capa);
-	RARRAY(ary)->aux.capa = new_capa;
+    if (idx >= ARY_CAPA(ary)) {
+	ary_double_capa(ary, idx);
     }
-    if (idx > RARRAY(ary)->len) {
-	rb_mem_clear(RARRAY(ary)->ptr + RARRAY(ary)->len,
-		     idx-RARRAY(ary)->len + 1);
+    if (idx > len) {
+	ary_mem_clear(ary, len, idx - len + 1);
     }
 
-    if (idx >= RARRAY(ary)->len) {
-	RARRAY(ary)->len = idx + 1;
+    if (idx >= len) {
+	ARY_SET_LEN(ary, idx + 1);
     }
-    RARRAY(ary)->ptr[idx] = val;
+    ARY_SET(ary, idx, val);
 }
 
 static VALUE
-ary_shared_array(klass, ary)
-    VALUE klass;
-    VALUE ary;
+ary_make_partial(VALUE ary, VALUE klass, long offset, long len)
 {
-    VALUE val = ary_alloc(klass);
+    assert(offset >= 0);
+    assert(len >= 0);
+    assert(offset+len <= RARRAY_LEN(ary));
 
-    ary_make_shared(ary);
-    RARRAY(val)->ptr = RARRAY(ary)->ptr;
-    RARRAY(val)->len = RARRAY(ary)->len;
-    RARRAY(val)->aux.shared = RARRAY(ary)->aux.shared;
-    FL_SET(val, ELTS_SHARED);
-    return val;
+    if (len <= RARRAY_EMBED_LEN_MAX) {
+        VALUE result = ary_alloc(klass);
+	ary_memcpy(result, 0, len, RARRAY_CONST_PTR(ary) + offset);
+        ARY_SET_EMBED_LEN(result, len);
+        return result;
+    }
+    else {
+        VALUE shared, result = ary_alloc(klass);
+        FL_UNSET_EMBED(result);
+
+        shared = ary_make_shared(ary);
+        ARY_SET_PTR(result, RARRAY_CONST_PTR(ary));
+        ARY_SET_LEN(result, RARRAY_LEN(ary));
+        rb_ary_set_shared(result, shared);
+
+        ARY_INCREASE_PTR(result, offset);
+        ARY_SET_LEN(result, len);
+        return result;
+    }
 }
 
 static VALUE
-ary_shared_first(argc, argv, ary, last)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
-    int last;
+ary_make_shared_copy(VALUE ary)
 {
-    VALUE nv, result;
+    return ary_make_partial(ary, rb_obj_class(ary), 0, RARRAY_LEN(ary));
+}
+
+enum ary_take_pos_flags
+{
+    ARY_TAKE_FIRST = 0,
+    ARY_TAKE_LAST = 1
+};
+
+static VALUE
+ary_take_first_or_last(int argc, const VALUE *argv, VALUE ary, enum ary_take_pos_flags last)
+{
+    VALUE nv;
     long n;
+    long len;
     long offset = 0;
 
     rb_scan_args(argc, argv, "1", &nv);
     n = NUM2LONG(nv);
-    if (n > RARRAY(ary)->len) {
-	n = RARRAY(ary)->len;
+    len = RARRAY_LEN(ary);
+    if (n > len) {
+	n = len;
     }
     else if (n < 0) {
 	rb_raise(rb_eArgError, "negative array size");
     }
     if (last) {
-	offset = RARRAY(ary)->len - n;
+	offset = len - n;
     }
-    result = ary_shared_array(rb_cArray, ary);
-    RARRAY(result)->ptr += offset;
-    RARRAY(result)->len = n;
-
-    return result;
+    return ary_make_partial(ary, rb_cArray, offset, n);
 }
 
 /*
  *  call-seq:
- *     array << obj            -> array
- *  
+ *     ary << obj            -> ary
+ *
  *  Append---Pushes the given object on to the end of this array. This
  *  expression returns the array itself, so several appends
  *  may be chained together.
@@ -467,65 +902,79 @@ ary_shared_first(argc, argv, ary, last)
  */
 
 VALUE
-rb_ary_push(ary, item)
-    VALUE ary;
-    VALUE item;
+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_SET_LEN(ary, idx + 1);
+    return ary;
+}
+
+VALUE
+rb_ary_cat(VALUE ary, const VALUE *argv, long len)
 {
-    rb_ary_store(ary, RARRAY(ary)->len, item);
+    long oldlen = RARRAY_LEN(ary);
+    VALUE target_ary = ary_ensure_room_for_push(ary, len);
+    ary_memcpy0(ary, oldlen, len, argv, target_ary);
+    ARY_SET_LEN(ary, oldlen + len);
     return ary;
 }
 
-/* 
+/*
  *  call-seq:
- *     array.push(obj, ... )   -> array
- *  
- *  Append---Pushes the given object(s) on to the end of this array. This
+ *     ary.push(obj, ... )   -> ary
+ *
+ *  Append --- Pushes the given object(s) on to the end of this array. This
  *  expression returns the array itself, so several appends
- *  may be chained together.
+ *  may be chained together. See also Array#pop for the opposite
+ *  effect.
  *
  *     a = [ "a", "b", "c" ]
- *     a.push("d", "e", "f")  
+ *     a.push("d", "e", "f")
  *             #=> ["a", "b", "c", "d", "e", "f"]
+ *     [1, 2, 3].push(4).push(5)
+ *             #=> [1, 2, 3, 4, 5]
  */
 
 static VALUE
-rb_ary_push_m(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_push_m(int argc, VALUE *argv, VALUE ary)
 {
-    while (argc--) {
-	rb_ary_push(ary, *argv++);
-    }
-    return ary;
+    return rb_ary_cat(ary, argv, argc);
 }
 
 VALUE
-rb_ary_pop(ary)
-    VALUE ary;
+rb_ary_pop(VALUE ary)
 {
+    long n;
     rb_ary_modify_check(ary);
-    if (RARRAY(ary)->len == 0) return Qnil;
-    if (!FL_TEST(ary, ELTS_SHARED) &&
-	    RARRAY(ary)->len * 3 < RARRAY(ary)->aux.capa &&
-	    RARRAY(ary)->aux.capa > ARY_DEFAULT_SIZE) {
-	RARRAY(ary)->aux.capa = RARRAY(ary)->len * 2;
-	REALLOC_N(RARRAY(ary)->ptr, VALUE, RARRAY(ary)->aux.capa);
+    n = RARRAY_LEN(ary);
+    if (n == 0) return Qnil;
+    if (ARY_OWNS_HEAP_P(ary) &&
+	n * 3 < ARY_CAPA(ary) &&
+	ARY_CAPA(ary) > ARY_DEFAULT_SIZE)
+    {
+	ary_resize_capa(ary, n * 2);
     }
-    return RARRAY(ary)->ptr[--RARRAY(ary)->len];
+    --n;
+    ARY_SET_LEN(ary, n);
+    return RARRAY_AREF(ary, n);
 }
 
 /*
  *  call-seq:
- *     array.pop    -> obj or nil
- *     array.pop(n) -> array
- *  
- *  Removes the last element from <i>self</i> and returns it, or
- *  <code>nil</code> if the array is empty.
+ *     ary.pop    -> obj or nil
+ *     ary.pop(n) -> new_ary
+ *
+ *  Removes the last element from +self+ and returns it, or
+ *  +nil+ if the array is empty.
+ *
+ *  If a number +n+ is given, returns an array of the last +n+ elements
+ *  (or less) just like <code>array.slice!(-n, n)</code> does. See also
+ *  Array#push for the opposite effect.
  *
- *  If a number _n_ is given, returns an array of the last n elements
- *  (or less) just like <code>array.slice!(-n, n)</code> does.
- *     
  *     a = [ "a", "b", "c", "d" ]
  *     a.pop     #=> "d"
  *     a.pop(2)  #=> ["b", "c"]
@@ -533,10 +982,7 @@ rb_ary_pop(ary)
  */
 
 static VALUE
-rb_ary_pop_m(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_pop_m(int argc, VALUE *argv, VALUE ary)
 {
     VALUE result;
 
@@ -545,47 +991,56 @@ rb_ary_pop_m(argc, argv, ary)
     }
 
     rb_ary_modify_check(ary);
-    result = ary_shared_first(argc, argv, ary, Qtrue);
-    RARRAY(ary)->len -= RARRAY(result)->len;
+    result = ary_take_first_or_last(argc, argv, ary, ARY_TAKE_LAST);
+    ARY_INCREASE_LEN(ary, -RARRAY_LEN(result));
     return result;
 }
 
 VALUE
-rb_ary_shift(ary)
-    VALUE ary;
+rb_ary_shift(VALUE ary)
 {
     VALUE top;
+    long len = RARRAY_LEN(ary);
 
     rb_ary_modify_check(ary);
-    if (RARRAY(ary)->len == 0) return Qnil;
-    top = RARRAY(ary)->ptr[0];
-    if (!FL_TEST(ary, ELTS_SHARED)) {
-        if (RARRAY(ary)->len < ARY_DEFAULT_SIZE) {
-            MEMMOVE(RARRAY(ary)->ptr, RARRAY(ary)->ptr+1, VALUE, RARRAY(ary)->len-1);
-	    RARRAY(ary)->len--;
-            return top;
-        }
-        RARRAY(ary)->ptr[0] = Qnil;
+    if (len == 0) return Qnil;
+    top = RARRAY_AREF(ary, 0);
+    if (!ARY_SHARED_P(ary)) {
+	if (len < ARY_DEFAULT_SIZE) {
+	    RARRAY_PTR_USE(ary, ptr, {
+		MEMMOVE(ptr, ptr+1, VALUE, len-1);
+	    }); /* WB: no new reference */
+            ARY_INCREASE_LEN(ary, -1);
+	    return top;
+	}
+        assert(!ARY_EMBED_P(ary)); /* ARY_EMBED_LEN_MAX < ARY_DEFAULT_SIZE */
+
+	ARY_SET(ary, 0, Qnil);
 	ary_make_shared(ary);
     }
-    RARRAY(ary)->ptr++;		/* shift ptr */
-    RARRAY(ary)->len--;
+    else if (ARY_SHARED_OCCUPIED(ARY_SHARED(ary))) {
+	RARRAY_PTR_USE(ary, ptr, ptr[0] = Qnil);
+    }
+    ARY_INCREASE_PTR(ary, 1);		/* shift ptr */
+    ARY_INCREASE_LEN(ary, -1);
 
     return top;
 }
 
 /*
  *  call-seq:
- *     array.shift    -> obj or nil
- *     array.shift(n) -> array
- *  
- *  Returns the first element of <i>self</i> and removes it (shifting all
- *  other elements down by one). Returns <code>nil</code> if the array
+ *     ary.shift    -> obj or nil
+ *     ary.shift(n) -> new_ary
+ *
+ *  Removes the first element of +self+ and returns it (shifting all
+ *  other elements down by one). Returns +nil+ if the array
  *  is empty.
  *
- *  If a number _n_ is given, returns an array of the first n elements
- *  (or less) just like <code>array.slice!(0, n)</code> does.
- *     
+ *  If a number +n+ is given, returns an array of the first +n+ elements
+ *  (or less) just like <code>array.slice!(0, n)</code> does. With +ary+
+ *  containing only the remainder elements, not including what was shifted to
+ *  +new_ary+. See also Array#unshift for the opposite effect.
+ *
  *     args = [ "-m", "-q", "filename" ]
  *     args.shift     #=> "-m"
  *     args           #=> ["-q", "filename"]
@@ -596,10 +1051,7 @@ rb_ary_shift(ary)
  */
 
 static VALUE
-rb_ary_shift_m(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_shift_m(int argc, VALUE *argv, VALUE ary)
 {
     VALUE result;
     long n;
@@ -609,145 +1061,190 @@ rb_ary_shift_m(argc, argv, ary)
     }
 
     rb_ary_modify_check(ary);
-    result = ary_shared_first(argc, argv, ary, Qfalse);
-    n = RARRAY(result)->len;
-    if (FL_TEST(ary, ELTS_SHARED)) {
-	RARRAY(ary)->ptr += n;
-	RARRAY(ary)->len -= n;
+    result = ary_take_first_or_last(argc, argv, ary, ARY_TAKE_FIRST);
+    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 {
-	MEMMOVE(RARRAY(ary)->ptr, RARRAY(ary)->ptr+n, VALUE, RARRAY(ary)->len-n);
-	RARRAY(ary)->len -= n;
+	if (RARRAY_LEN(ary) < ARY_DEFAULT_SIZE) {
+	    RARRAY_PTR_USE(ary, ptr, {
+		MEMMOVE(ptr, ptr+n, VALUE, RARRAY_LEN(ary)-n);
+	    }); /* WB: no new reference */
+	}
+	else {
+	    ary_make_shared(ary);
+	    goto setup_occupied_shared;
+	}
     }
+    ARY_INCREASE_LEN(ary, -n);
 
     return result;
 }
 
-VALUE
-rb_ary_unshift(ary, item)
-    VALUE ary, item;
+static VALUE
+ary_ensure_room_for_unshift(VALUE ary, int argc)
 {
-    rb_ary_modify(ary);
-    if (RARRAY(ary)->len == RARRAY(ary)->aux.capa) {
-	long capa_inc = RARRAY(ary)->aux.capa / 2;
-	if (capa_inc < ARY_DEFAULT_SIZE) {
-	    capa_inc = ARY_DEFAULT_SIZE;
+    long len = RARRAY_LEN(ary);
+    long new_len = len + 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);
+	if (ARY_SHARED_OCCUPIED(shared) && capa > new_len) {
+	    head = RARRAY_CONST_PTR(ary);
+	    sharedp = RARRAY_CONST_PTR(shared);
+	    goto makeroom_if_need;
 	}
-	RARRAY(ary)->aux.capa += capa_inc;
-	REALLOC_N(RARRAY(ary)->ptr, VALUE, RARRAY(ary)->aux.capa);
     }
 
-    /* sliding items */
-    MEMMOVE(RARRAY(ary)->ptr + 1, RARRAY(ary)->ptr, VALUE, RARRAY(ary)->len);
+    rb_ary_modify(ary);
+    capa = ARY_CAPA(ary);
+    if (capa - (capa >> 6) <= new_len) {
+	ary_double_capa(ary, new_len);
+    }
+
+    /* use shared array for big "queues" */
+    if (new_len > ARY_DEFAULT_SIZE * 4) {
+	/* make a room for unshifted items */
+	capa = ARY_CAPA(ary);
+	ary_make_shared(ary);
 
-    RARRAY(ary)->len++;
-    RARRAY(ary)->ptr[0] = item;
+	head = sharedp = RARRAY_CONST_PTR(ary);
+	goto makeroom;
+      makeroom_if_need:
+	if (head - sharedp < argc) {
+	    long room;
+	  makeroom:
+	    room = capa - new_len;
+	    room -= room >> 4;
+	    MEMMOVE((VALUE *)sharedp + argc + room, head, VALUE, len);
+	    head = sharedp + argc + room;
+	}
+	ARY_SET_PTR(ary, head - argc);
+	assert(ARY_SHARED_OCCUPIED(ARY_SHARED(ary)));
+	return ARY_SHARED(ary);
+    }
+    else {
+	/* sliding items */
+	RARRAY_PTR_USE(ary, ptr, {
+	    MEMMOVE(ptr + argc, ptr, VALUE, len);
+	});
 
-    return ary;
+	return ary;
+    }
 }
 
 /*
  *  call-seq:
- *     array.unshift(obj, ...)  -> array
- *  
- *  Prepends objects to the front of <i>array</i>.
- *  other elements up one.
- *     
+ *     ary.unshift(obj, ...)  -> ary
+ *
+ *  Prepends objects to the front of +self+, moving other elements upwards.
+ *  See also Array#shift for the opposite effect.
+ *
  *     a = [ "b", "c", "d" ]
  *     a.unshift("a")   #=> ["a", "b", "c", "d"]
  *     a.unshift(1, 2)  #=> [ 1, 2, "a", "b", "c", "d"]
  */
 
 static VALUE
-rb_ary_unshift_m(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_unshift_m(int argc, VALUE *argv, VALUE ary)
 {
-    long len = RARRAY(ary)->len;
-
-    if (argc == 0) return ary;
+    long len = RARRAY_LEN(ary);
+    VALUE target_ary;
 
-    /* make rooms by setting the last item */
-    rb_ary_store(ary, len + argc - 1, Qnil);
+    if (argc == 0) {
+	rb_ary_modify_check(ary);
+	return ary;
+    }
 
-    /* sliding items */
-    MEMMOVE(RARRAY(ary)->ptr + argc, RARRAY(ary)->ptr, VALUE, len);
-    MEMCPY(RARRAY(ary)->ptr, argv, VALUE, argc);
-    
+    target_ary = ary_ensure_room_for_unshift(ary, argc);
+    ary_memcpy0(ary, 0, argc, argv, target_ary);
+    ARY_SET_LEN(ary, len + argc);
     return ary;
 }
 
+VALUE
+rb_ary_unshift(VALUE ary, VALUE item)
+{
+    return rb_ary_unshift_m(1,&item,ary);
+}
+
 /* faster version - use this if you don't need to treat negative offset */
 static inline VALUE
-rb_ary_elt(ary, offset)
-    VALUE ary;
-    long offset;
+rb_ary_elt(VALUE ary, long offset)
 {
-    if (RARRAY(ary)->len == 0) return Qnil;
-    if (offset < 0 || RARRAY(ary)->len <= offset) {
+    long len = RARRAY_LEN(ary);
+    if (len == 0) return Qnil;
+    if (offset < 0 || len <= offset) {
 	return Qnil;
     }
-    return RARRAY(ary)->ptr[offset];
+    return RARRAY_AREF(ary, offset);
 }
 
 VALUE
-rb_ary_entry(ary, offset)
-    VALUE ary;
-    long offset;
+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 += RARRAY(ary)->len;
+        offset += len;
+        if (offset < 0) return Qnil;
+    }
+    else if (len <= offset) {
+        return Qnil;
     }
-    return rb_ary_elt(ary, offset);
+    return ptr[offset];
 }
 
-static VALUE
-rb_ary_subseq(ary, beg, len)
-    VALUE ary;
-    long beg, len;
+VALUE
+rb_ary_subseq(VALUE ary, long beg, long len)
 {
-    VALUE klass, ary2, shared;
-    VALUE *ptr;
+    VALUE klass;
+    long alen = RARRAY_LEN(ary);
 
-    if (beg > RARRAY(ary)->len) return Qnil;
+    if (beg > alen) return Qnil;
     if (beg < 0 || len < 0) return Qnil;
 
-    if (RARRAY(ary)->len < len || RARRAY(ary)->len < beg + len) {
-	len = RARRAY(ary)->len - beg;
-	if (len < 0)
-	    len = 0;
+    if (alen < len || alen < beg + len) {
+	len = alen - beg;
     }
     klass = rb_obj_class(ary);
     if (len == 0) return ary_new(klass, 0);
 
-    shared = ary_make_shared(ary);
-    ptr = RARRAY(ary)->ptr;
-    ary2 = ary_alloc(klass);
-    RARRAY(ary2)->ptr = ptr + beg;
-    RARRAY(ary2)->len = len;
-    RARRAY(ary2)->aux.shared = shared;
-    FL_SET(ary2, ELTS_SHARED);
-
-    return ary2;
+    return ary_make_partial(ary, klass, beg, len);
 }
 
-/* 
+/*
  *  call-seq:
- *     array[index]                -> obj      or nil
- *     array[start, length]        -> an_array or nil
- *     array[range]                -> an_array or nil
- *     array.slice(index)          -> obj      or nil
- *     array.slice(start, length)  -> an_array or nil
- *     array.slice(range)          -> an_array or nil
+ *     ary[index]                -> obj     or nil
+ *     ary[start, length]        -> new_ary or nil
+ *     ary[range]                -> new_ary or nil
+ *     ary.slice(index)          -> obj     or nil
+ *     ary.slice(start, length)  -> new_ary or nil
+ *     ary.slice(range)          -> new_ary or nil
+ *
+ *  Element Reference --- Returns the element at +index+, or returns a
+ *  subarray starting at the +start+ index and continuing for +length+
+ *  elements, or returns a subarray specified by +range+ of indices.
  *
- *  Element Reference---Returns the element at _index_,
- *  or returns a subarray starting at _start_ and
- *  continuing for _length_ elements, or returns a subarray
- *  specified by _range_.
- *  Negative indices count backward from the end of the
- *  array (-1 is the last element). Returns nil if the index
- *  (or starting index) are out of range.
+ *  Negative indices count backward from the end of the array (-1 is the last
+ *  element).  For +start+ and +range+ cases the starting index is just before
+ *  an element.  Additionally, an empty array is returned when the starting
+ *  index for an element range is at the end of the array.
+ *
+ *  Returns +nil+ if the index (or starting index) are out of range.
  *
  *     a = [ "a", "b", "c", "d", "e" ]
  *     a[2] +  a[0] + a[1]    #=> "cab"
@@ -759,44 +1256,36 @@ rb_ary_subseq(ary, beg, len)
  *     a[-3, 3]               #=> [ "c", "d", "e" ]
  *     # special cases
  *     a[5]                   #=> nil
+ *     a[6, 1]                #=> nil
  *     a[5, 1]                #=> []
  *     a[5..10]               #=> []
  *
  */
 
 VALUE
-rb_ary_aref(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_aref(int argc, const VALUE *argv, VALUE ary)
 {
     VALUE arg;
     long beg, len;
 
     if (argc == 2) {
-	if (SYMBOL_P(argv[0])) {
-	    rb_raise(rb_eTypeError, "Symbol as array index");
-	}
 	beg = NUM2LONG(argv[0]);
 	len = NUM2LONG(argv[1]);
 	if (beg < 0) {
-	    beg += RARRAY(ary)->len;
+	    beg += RARRAY_LEN(ary);
 	}
 	return rb_ary_subseq(ary, beg, len);
     }
     if (argc != 1) {
-	rb_scan_args(argc, argv, "11", 0, 0);
+	rb_scan_args(argc, argv, "11", NULL, NULL);
     }
     arg = argv[0];
     /* special case - speeding up */
     if (FIXNUM_P(arg)) {
 	return rb_ary_entry(ary, FIX2LONG(arg));
     }
-    if (SYMBOL_P(arg)) {
-	rb_raise(rb_eTypeError, "Symbol as array index");
-    }
     /* check if idx is Range */
-    switch (rb_range_beg_len(arg, &beg, &len, RARRAY(ary)->len, 0)) {
+    switch (rb_range_beg_len(arg, &beg, &len, RARRAY_LEN(ary), 0)) {
       case Qfalse:
 	break;
       case Qnil:
@@ -807,109 +1296,105 @@ rb_ary_aref(argc, argv, ary)
     return rb_ary_entry(ary, NUM2LONG(arg));
 }
 
-/* 
+/*
  *  call-seq:
- *     array.at(index)   ->   obj  or nil
+ *     ary.at(index)   ->   obj  or nil
  *
- *  Returns the element at _index_. A
- *  negative index counts from the end of _self_.  Returns +nil+
- *  if the index is out of range. See also <code>Array#[]</code>.
- *  (<code>Array#at</code> is slightly faster than <code>Array#[]</code>,
- *  as it does not accept ranges and so on.)
+ *  Returns the element at +index+. A negative index counts from the end of
+ *  +self+. Returns +nil+ if the index is out of range. See also
+ *  Array#[].
  *
  *     a = [ "a", "b", "c", "d", "e" ]
  *     a.at(0)     #=> "a"
  *     a.at(-1)    #=> "e"
  */
 
-static VALUE
-rb_ary_at(ary, pos)
-    VALUE ary, pos;
+VALUE
+rb_ary_at(VALUE ary, VALUE pos)
 {
     return rb_ary_entry(ary, NUM2LONG(pos));
 }
 
 /*
  *  call-seq:
- *     array.first   ->   obj or nil
- *     array.first(n) -> an_array
+ *     ary.first     ->   obj or nil
+ *     ary.first(n)  ->   new_ary
  *
  *  Returns the first element, or the first +n+ elements, of the array.
- *  If the array is empty, the first form returns <code>nil</code>, and the
- *  second form returns an empty array.
+ *  If the array is empty, the first form returns +nil+, and the
+ *  second form returns an empty array. See also Array#last for
+ *  the opposite effect.
  *
  *     a = [ "q", "r", "s", "t" ]
- *     a.first    #=> "q"
- *     a.first(1) #=> ["q"]
- *     a.first(3) #=> ["q", "r", "s"]
+ *     a.first     #=> "q"
+ *     a.first(2)  #=> ["q", "r"]
  */
 
 static VALUE
-rb_ary_first(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_first(int argc, VALUE *argv, VALUE ary)
 {
     if (argc == 0) {
-	if (RARRAY(ary)->len == 0) return Qnil;
-	return RARRAY(ary)->ptr[0];
+	if (RARRAY_LEN(ary) == 0) return Qnil;
+	return RARRAY_AREF(ary, 0);
     }
     else {
-	return ary_shared_first(argc, argv, ary, Qfalse);
+	return ary_take_first_or_last(argc, argv, ary, ARY_TAKE_FIRST);
     }
 }
 
 /*
  *  call-seq:
- *     array.last     ->  obj or nil
- *     array.last(n)  ->  an_array
- *  
- *  Returns the last element(s) of <i>self</i>. If the array is empty,
- *  the first form returns <code>nil</code>.
- *     
- *     [ "w", "x", "y", "z" ].last   #=> "z"
+ *     ary.last     ->  obj or nil
+ *     ary.last(n)  ->  new_ary
+ *
+ *  Returns the last element(s) of +self+. If the array is empty,
+ *  the first form returns +nil+.
+ *
+ *  See also Array#first for the opposite effect.
+ *
+ *     a = [ "w", "x", "y", "z" ]
+ *     a.last     #=> "z"
+ *     a.last(2)  #=> ["y", "z"]
  */
 
-static VALUE
-rb_ary_last(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+VALUE
+rb_ary_last(int argc, const VALUE *argv, VALUE ary)
 {
     if (argc == 0) {
-	if (RARRAY(ary)->len == 0) return Qnil;
-	return RARRAY(ary)->ptr[RARRAY(ary)->len-1];
+	long len = RARRAY_LEN(ary);
+	if (len == 0) return Qnil;
+	return RARRAY_AREF(ary, len-1);
     }
     else {
-	return ary_shared_first(argc, argv, ary, Qtrue);
+	return ary_take_first_or_last(argc, argv, ary, ARY_TAKE_LAST);
     }
 }
 
 /*
  *  call-seq:
- *     array.fetch(index)                    -> obj
- *     array.fetch(index, default )          -> obj
- *     array.fetch(index) {|index| block }   -> obj
- *  
- *  Tries to return the element at position <i>index</i>. If the index
- *  lies outside the array, the first form throws an
- *  <code>IndexError</code> exception, the second form returns
- *  <i>default</i>, and the third form returns the value of invoking
- *  the block, passing in the index. Negative values of <i>index</i>
- *  count from the end of the array.
- *     
+ *     ary.fetch(index)                    -> obj
+ *     ary.fetch(index, default)           -> obj
+ *     ary.fetch(index) { |index| block }  -> obj
+ *
+ *  Tries to return the element at position +index+, but throws an IndexError
+ *  exception if the referenced +index+ lies outside of the array bounds.  This
+ *  error can be prevented by supplying a second argument, which will act as a
+ *  +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.
+ *
  *     a = [ 11, 22, 33, 44 ]
  *     a.fetch(1)               #=> 22
  *     a.fetch(-1)              #=> 44
  *     a.fetch(4, 'cat')        #=> "cat"
- *     a.fetch(4) { |i| i*i }   #=> 16
+ *     a.fetch(100) { |i| puts "#{i} is out of bounds" }
+ *                              #=> "100 is out of bounds"
  */
 
 static VALUE
-rb_ary_fetch(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_fetch(int argc, VALUE *argv, VALUE ary)
 {
     VALUE pos, ifnone;
     long block_given;
@@ -923,233 +1408,303 @@ rb_ary_fetch(argc, argv, ary)
     idx = NUM2LONG(pos);
 
     if (idx < 0) {
-	idx +=  RARRAY(ary)->len;
+	idx +=  RARRAY_LEN(ary);
     }
-    if (idx < 0 || RARRAY(ary)->len <= idx) {
+    if (idx < 0 || RARRAY_LEN(ary) <= idx) {
 	if (block_given) return rb_yield(pos);
 	if (argc == 1) {
-	    rb_raise(rb_eIndexError, "index %ld out of array", idx);
+	    rb_raise(rb_eIndexError, "index %ld outside of array bounds: %ld...%ld",
+			idx - (idx < 0 ? RARRAY_LEN(ary) : 0), -RARRAY_LEN(ary), RARRAY_LEN(ary));
 	}
 	return ifnone;
     }
-    return RARRAY(ary)->ptr[idx];
+    return RARRAY_AREF(ary, idx);
 }
 
 /*
  *  call-seq:
- *     array.index(obj)           ->  int or nil
- *     array.index {|item| block} ->  int or nil
- *  
- *  Returns the index of the first object in <i>self</i> such that is
- *  <code>==</code> to <i>obj</i>. If a block is given instead of an
- *  argument, returns first object for which <em>block</em> is true.
- *  Returns <code>nil</code> if no match is found.
- *     
- *     a = [ "a", "b", "c" ]
- *     a.index("b")        #=> 1
- *     a.index("z")        #=> nil
- *     a.index{|x|x=="b"}  #=> 1
+ *     ary.find_index(obj)             ->  int or nil
+ *     ary.find_index { |item| block } ->  int or nil
+ *     ary.find_index                  ->  Enumerator
+ *     ary.index(obj)             ->  int or nil
+ *     ary.index { |item| block } ->  int or nil
+ *     ary.index                  ->  Enumerator
  *
- *  This is an alias of <code>#find_index</code>.
+ *  Returns the _index_ of the first object in +ary+ such that the object is
+ *  <code>==</code> to +obj+.
+ *
+ *  If a block is given instead of an argument, returns the _index_ of the
+ *  first object for which the block returns +true+.  Returns +nil+ if no
+ *  match is found.
+ *
+ *  See also Array#rindex.
+ *
+ *  An Enumerator is returned if neither a block nor argument is given.
+ *
+ *     a = [ "a", "b", "c" ]
+ *     a.index("b")              #=> 1
+ *     a.index("z")              #=> nil
+ *     a.index { |x| x == "b" }  #=> 1
  */
 
 static VALUE
-rb_ary_index(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_index(int argc, VALUE *argv, VALUE ary)
 {
+    const VALUE *ptr;
     VALUE val;
-    long i;
+    long i, len;
 
-    if (argc  == 0) {
+    if (argc == 0) {
 	RETURN_ENUMERATOR(ary, 0, 0);
-	for (i=0; i<RARRAY(ary)->len; i++) {
-	    if (RTEST(rb_yield(RARRAY(ary)->ptr[i]))) {
+	for (i=0; i<RARRAY_LEN(ary); i++) {
+	    if (RTEST(rb_yield(RARRAY_AREF(ary, i)))) {
 		return LONG2NUM(i);
 	    }
 	}
 	return Qnil;
     }
-    rb_scan_args(argc, argv, "01", &val);
-    for (i=0; i<RARRAY(ary)->len; i++) {
-	if (rb_equal(RARRAY(ary)->ptr[i], val))
+    rb_check_arity(argc, 0, 1);
+    val = argv[0];
+    if (rb_block_given_p())
+	rb_warn("given block not used");
+    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;
 }
 
 /*
  *  call-seq:
- *     array.rindex(obj)    ->  int or nil
- *  
- *  Returns the index of the last object in <i>array</i>
- *  <code>==</code> to <i>obj</i>. If a block is given instead of an
- *  argument, returns first object for which <em>block</em> is
- *  true. Returns <code>nil</code> if no match is found.
- *     
+ *     ary.rindex(obj)             ->  int or nil
+ *     ary.rindex { |item| block } ->  int or nil
+ *     ary.rindex                  ->  Enumerator
+ *
+ *  Returns the _index_ of the last object in +self+ <code>==</code> to +obj+.
+ *
+ *  If a block is given instead of an argument, returns the _index_ of the
+ *  first object for which the block returns +true+, starting from the last
+ *  object.
+ *
+ *  Returns +nil+ if no match is found.
+ *
+ *  See also Array#index.
+ *
+ *  If neither block nor argument is given, an Enumerator is returned instead.
+ *
  *     a = [ "a", "b", "b", "b", "c" ]
- *     a.rindex("b")        #=> 3
- *     a.rindex("z")        #=> nil
- *     a.rindex{|x|x=="b"}  #=> 3
+ *     a.rindex("b")             #=> 3
+ *     a.rindex("z")             #=> nil
+ *     a.rindex { |x| x == "b" } #=> 3
  */
 
 static VALUE
-rb_ary_rindex(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_rindex(int argc, VALUE *argv, VALUE ary)
 {
+    const VALUE *ptr;
     VALUE val;
-    long i = RARRAY(ary)->len;
+    long i = RARRAY_LEN(ary), len;
 
     if (argc == 0) {
 	RETURN_ENUMERATOR(ary, 0, 0);
 	while (i--) {
-	    if (RTEST(rb_yield(RARRAY(ary)->ptr[i])))
+	    if (RTEST(rb_yield(RARRAY_AREF(ary, i))))
 		return LONG2NUM(i);
-	    if (i > RARRAY(ary)->len) {
-		i = RARRAY(ary)->len;
+	    if (i > (len = RARRAY_LEN(ary))) {
+		i = len;
 	    }
 	}
 	return Qnil;
     }
-    rb_scan_args(argc, argv, "01", &val);
+    rb_check_arity(argc, 0, 1);
+    val = argv[0];
+    if (rb_block_given_p())
+	rb_warn("given block not used");
+    ptr = RARRAY_CONST_PTR(ary);
     while (i--) {
-	if (rb_equal(RARRAY(ary)->ptr[i], val))
+	VALUE e = ptr[i];
+	switch (rb_equal_opt(e, val)) {
+	  case Qundef:
+	    if (!rb_equal(e, val)) break;
+	  case Qtrue:
 	    return LONG2NUM(i);
-	if (i > RARRAY(ary)->len) {
-	    i = RARRAY(ary)->len;
+	  case Qfalse:
+	    continue;
+	}
+	if (i > (len = RARRAY_LEN(ary))) {
+	    i = len;
 	}
+	ptr = RARRAY_CONST_PTR(ary);
     }
     return Qnil;
 }
 
-/*
- *  call-seq:
- *     array.indexes( i1, i2, ... iN )   -> an_array
- *     array.indices( i1, i2, ... iN )   -> an_array
- *  
- *  Deprecated; use <code>Array#values_at</code>.
- */
-
-static VALUE
-rb_ary_indexes(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
-{
-    VALUE new_ary;
-    long i;
-
-    rb_warn("Array#%s is deprecated; use Array#values_at", rb_id2name(rb_frame_last_func()));
-    new_ary = rb_ary_new2(argc);
-    for (i=0; i<argc; i++) {
-	rb_ary_push(new_ary, rb_ary_aref(1, argv+i, ary));
-    }
-
-    return new_ary;
-}
-
 VALUE
-rb_ary_to_ary(obj)
-    VALUE obj;
+rb_ary_to_ary(VALUE obj)
 {
-    if (TYPE(obj) == T_ARRAY) {
-	return obj;
-    }
-    if (rb_respond_to(obj, rb_intern("to_ary"))) {
-	return rb_convert_type(obj, T_ARRAY, "Array", "to_ary");
-    }
+    VALUE tmp = rb_check_array_type(obj);
+
+    if (!NIL_P(tmp)) return tmp;
     return rb_ary_new3(1, obj);
 }
 
 static void
-rb_ary_splice(ary, beg, len, rpl)
-    VALUE ary;
-    long beg, len;
-    VALUE rpl;
+rb_ary_splice(VALUE ary, long beg, long len, const VALUE *rptr, long rlen)
 {
-    long rlen;
+    long olen;
+    long rofs;
 
     if (len < 0) rb_raise(rb_eIndexError, "negative length (%ld)", len);
+    olen = RARRAY_LEN(ary);
     if (beg < 0) {
-	beg += RARRAY(ary)->len;
+	beg += olen;
 	if (beg < 0) {
-	    beg -= RARRAY(ary)->len;
-	    rb_raise(rb_eIndexError, "index %ld out of array", beg);
+	    rb_raise(rb_eIndexError, "index %ld too small for array; minimum: %ld",
+		     beg - olen, -olen);
 	}
     }
-    if (RARRAY(ary)->len < len || RARRAY(ary)->len < beg + len) {
-	len = RARRAY(ary)->len - beg;
+    if (olen < len || olen < beg + len) {
+	len = olen - beg;
     }
 
-    if (NIL_P(rpl)) {
-	rlen = 0;
+    {
+	const VALUE *optr = RARRAY_CONST_PTR(ary);
+	rofs = (rptr >= optr && rptr < optr + olen) ? rptr - optr : -1;
     }
-    else {
-	rpl = rb_ary_to_ary(rpl);
-	rlen = RARRAY(rpl)->len;
-    }
-    rb_ary_modify(ary);
 
-    if (beg >= RARRAY(ary)->len) {
+    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 */
 	len = beg + rlen;
-	if (len >= RARRAY(ary)->aux.capa) {
-	    REALLOC_N(RARRAY(ary)->ptr, VALUE, len);
-	    RARRAY(ary)->aux.capa = len;
-	}
-	rb_mem_clear(RARRAY(ary)->ptr + RARRAY(ary)->len, beg - RARRAY(ary)->len);
+	ary_mem_clear(ary, olen, beg - olen);
 	if (rlen > 0) {
-	    MEMCPY(RARRAY(ary)->ptr + beg, RARRAY(rpl)->ptr, VALUE, rlen);
+	    if (rofs != -1) rptr = RARRAY_CONST_PTR(ary) + rofs;
+	    ary_memcpy0(ary, beg, rlen, rptr, target_ary);
 	}
-	RARRAY(ary)->len = len;
+	ARY_SET_LEN(ary, len);
     }
     else {
 	long alen;
 
-	if (beg + len > RARRAY(ary)->len) {
-	    len = RARRAY(ary)->len - beg;
+	if (olen - len > ARY_MAX_SIZE - rlen) {
+	    rb_raise(rb_eIndexError, "index %ld too big", olen + rlen - len);
 	}
-
-	alen = RARRAY(ary)->len + rlen - len;
-	if (alen >= RARRAY(ary)->aux.capa) {
-	    REALLOC_N(RARRAY(ary)->ptr, VALUE, alen);
-	    RARRAY(ary)->aux.capa = alen;
+	rb_ary_modify(ary);
+	alen = olen + rlen - len;
+	if (alen >= ARY_CAPA(ary)) {
+	    ary_double_capa(ary, alen);
 	}
 
 	if (len != rlen) {
-	    MEMMOVE(RARRAY(ary)->ptr + beg + rlen, RARRAY(ary)->ptr + beg + len,
-		    VALUE, RARRAY(ary)->len - (beg + len));
-	    RARRAY(ary)->len = alen;
+	    RARRAY_PTR_USE(ary, ptr,
+			   MEMMOVE(ptr + beg + rlen, ptr + beg + len,
+				   VALUE, olen - (beg + len)));
+	    ARY_SET_LEN(ary, alen);
 	}
 	if (rlen > 0) {
-	    MEMMOVE(RARRAY(ary)->ptr + beg, RARRAY(rpl)->ptr, VALUE, rlen);
+	    if (rofs != -1) rptr = RARRAY_CONST_PTR(ary) + rofs;
+	    MEMMOVE(RARRAY_PTR(ary) + beg, rptr, VALUE, rlen);
 	}
     }
 }
 
-/* 
+void
+rb_ary_set_len(VALUE ary, long len)
+{
+    long capa;
+
+    rb_ary_modify_check(ary);
+    if (ARY_SHARED_P(ary)) {
+	rb_raise(rb_eRuntimeError, "can't set length of shared ");
+    }
+    if (len > (capa = (long)ARY_CAPA(ary))) {
+	rb_bug("probable buffer overflow: %ld for %ld", len, capa);
+    }
+    ARY_SET_LEN(ary, len);
+}
+
+/*!
+ * expands or shrinks \a ary to \a len elements.
+ * expanded region will be filled with Qnil.
+ * \param ary  an array
+ * \param len  new size
+ * \return     \a ary
+ * \post       the size of \a ary is \a len.
+ */
+VALUE
+rb_ary_resize(VALUE ary, long len)
+{
+    long olen;
+
+    rb_ary_modify(ary);
+    olen = RARRAY_LEN(ary);
+    if (len == olen) return ary;
+    if (len > ARY_MAX_SIZE) {
+	rb_raise(rb_eIndexError, "index %ld too big", len);
+    }
+    if (len > olen) {
+	if (len >= ARY_CAPA(ary)) {
+	    ary_double_capa(ary, len);
+	}
+	ary_mem_clear(ary, olen, len - olen);
+	ARY_SET_LEN(ary, len);
+    }
+    else if (ARY_EMBED_P(ary)) {
+        ARY_SET_EMBED_LEN(ary, len);
+    }
+    else if (len <= RARRAY_EMBED_LEN_MAX) {
+	VALUE tmp[RARRAY_EMBED_LEN_MAX];
+	MEMCPY(tmp, ARY_HEAP_PTR(ary), VALUE, len);
+	ary_discard(ary);
+	MEMCPY((VALUE *)ARY_EMBED_PTR(ary), tmp, VALUE, len); /* WB: no new reference */
+        ARY_SET_EMBED_LEN(ary, len);
+    }
+    else {
+	if (olen > len + ARY_DEFAULT_SIZE) {
+	    SIZED_REALLOC_N(RARRAY(ary)->as.heap.ptr, VALUE, len, RARRAY(ary)->as.heap.aux.capa);
+	    ARY_SET_CAPA(ary, len);
+	}
+	ARY_SET_HEAP_LEN(ary, len);
+    }
+    return ary;
+}
+
+/*
  *  call-seq:
- *     array[index]         = obj                     ->  obj
- *     array[start, length] = obj or an_array or nil  ->  obj or an_array or nil
- *     array[range]         = obj or an_array or nil  ->  obj or an_array or nil
+ *     ary[index]         = obj                      ->  obj
+ *     ary[start, length] = obj or other_ary or nil  ->  obj or other_ary or nil
+ *     ary[range]         = obj or other_ary or nil  ->  obj or other_ary or nil
+ *
+ *  Element Assignment --- Sets the element at +index+, or replaces a subarray
+ *  from the +start+ index for +length+ elements, or replaces a subarray
+ *  specified by the +range+ of indices.
+ *
+ *  If indices are greater than the current capacity of the array, the array
+ *  grows automatically.  Elements are inserted into the array at +start+ if
+ *  +length+ is zero.
+ *
+ *  Negative indices will count backward from the end of the array.  For
+ *  +start+ and +range+ cases the starting index is just before an element.
+ *
+ *  An IndexError is raised if a negative index points past the beginning of
+ *  the array.
+ *
+ *  See also Array#push, and Array#unshift.
  *
- *  Element Assignment---Sets the element at _index_,
- *  or replaces a subarray starting at _start_ and
- *  continuing for _length_ elements, or replaces a subarray
- *  specified by _range_.  If indices are greater than
- *  the current capacity of the array, the array grows
- *  automatically. A negative indices will count backward
- *  from the end of the array. Inserts elements if _length_ is
- *  zero. If +nil+ is used in the second and third form,
- *  deletes elements from _self_. An +IndexError+ is raised if a
- *  negative index points past the beginning of the array. See also
- *  <code>Array#push</code>, and <code>Array#unshift</code>.
- * 
  *     a = Array.new
  *     a[4] = "4";                 #=> [nil, nil, nil, nil, "4"]
  *     a[0, 3] = [ 'a', 'b', 'c' ] #=> ["a", "b", "c", nil, "4"]
@@ -1157,41 +1712,37 @@ rb_ary_splice(ary, beg, len, rpl)
  *     a[0, 2] = "?"               #=> ["?", 2, nil, "4"]
  *     a[0..2] = "A"               #=> ["A", "4"]
  *     a[-1]   = "Z"               #=> ["A", "Z"]
- *     a[1..-1] = nil              #=> ["A"]
+ *     a[1..-1] = nil              #=> ["A", nil]
+ *     a[1..-1] = []               #=> ["A"]
+ *     a[0, 0] = [ 1, 2 ]          #=> [1, 2, "A"]
+ *     a[3, 0] = "B"               #=> [1, 2, "A", "B"]
  */
 
 static VALUE
-rb_ary_aset(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_aset(int argc, VALUE *argv, VALUE ary)
 {
     long offset, beg, len;
+    VALUE rpl;
 
     if (argc == 3) {
-	if (SYMBOL_P(argv[0])) {
-	    rb_raise(rb_eTypeError, "Symbol as array index");
-	}
-	if (SYMBOL_P(argv[1])) {
-	    rb_raise(rb_eTypeError, "Symbol as subarray length");
-	}
-	rb_ary_splice(ary, NUM2LONG(argv[0]), NUM2LONG(argv[1]), argv[2]);
-	return argv[2];
-    }
-    if (argc != 2) {
-	rb_raise(rb_eArgError, "wrong number of arguments (%d for 2)", argc);
+	rb_ary_modify_check(ary);
+	beg = NUM2LONG(argv[0]);
+	len = NUM2LONG(argv[1]);
+	goto range;
     }
+    rb_check_arity(argc, 2, 2);
+    rb_ary_modify_check(ary);
     if (FIXNUM_P(argv[0])) {
 	offset = FIX2LONG(argv[0]);
 	goto fixnum;
     }
-    if (SYMBOL_P(argv[0])) {
-	rb_raise(rb_eTypeError, "Symbol as array index");
-    }
-    if (rb_range_beg_len(argv[0], &beg, &len, RARRAY(ary)->len, 1)) {
+    if (rb_range_beg_len(argv[0], &beg, &len, RARRAY_LEN(ary), 1)) {
 	/* check if idx is Range */
-	rb_ary_splice(ary, beg, len, argv[1]);
-	return argv[1];
+      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];
     }
 
     offset = NUM2LONG(argv[0]);
@@ -1202,90 +1753,103 @@ fixnum:
 
 /*
  *  call-seq:
- *     array.insert(index, obj...)  -> array
- *  
- *  Inserts the given values before the element with the given index
- *  (which may be negative).
- *     
+ *     ary.insert(index, obj...)  -> ary
+ *
+ *  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.
+ *
  *     a = %w{ a b c d }
  *     a.insert(2, 99)         #=> ["a", "b", 99, "c", "d"]
  *     a.insert(-2, 1, 2, 3)   #=> ["a", "b", 99, "c", 1, 2, 3, "d"]
  */
 
 static VALUE
-rb_ary_insert(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_insert(int argc, VALUE *argv, VALUE ary)
 {
     long pos;
 
+    rb_check_arity(argc, 1, UNLIMITED_ARGUMENTS);
+    rb_ary_modify_check(ary);
     if (argc == 1) return ary;
-    if (argc < 1) {
-	rb_raise(rb_eArgError, "wrong number of arguments (at least 1)");
-    }
     pos = NUM2LONG(argv[0]);
     if (pos == -1) {
-	pos = RARRAY(ary)->len;
+	pos = RARRAY_LEN(ary);
     }
     if (pos < 0) {
 	pos++;
     }
-    rb_ary_splice(ary, pos, 0, rb_ary_new4(argc - 1, argv + 1));
+    rb_ary_splice(ary, pos, 0, argv + 1, argc - 1);
     return ary;
 }
 
+static VALUE
+rb_ary_length(VALUE ary);
+
+static VALUE
+ary_enum_length(VALUE ary, VALUE args, VALUE eobj)
+{
+    return rb_ary_length(ary);
+}
+
 /*
  *  call-seq:
- *     array.each {|item| block }   ->   array
- *  
- *  Calls <i>block</i> once for each element in <i>self</i>, passing that
- *  element as a parameter.
- *     
+ *     ary.each { |item| block }  -> ary
+ *     ary.each                   -> Enumerator
+ *
+ *  Calls the given block once for each element in +self+, passing that element
+ *  as a parameter.  Returns the array itself.
+ *
+ *  If no block is given, an Enumerator is returned.
+ *
  *     a = [ "a", "b", "c" ]
  *     a.each {|x| print x, " -- " }
- *     
+ *
  *  produces:
- *     
+ *
  *     a -- b -- c --
  */
 
 VALUE
-rb_ary_each(ary)
-    VALUE ary;
+rb_ary_each(VALUE ary)
 {
     long i;
 
-    RETURN_ENUMERATOR(ary, 0, 0);
-    for (i=0; i<RARRAY(ary)->len; i++) {
-	rb_yield(RARRAY(ary)->ptr[i]);
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
+    for (i=0; i<RARRAY_LEN(ary); i++) {
+	rb_yield(RARRAY_AREF(ary, i));
     }
     return ary;
 }
 
 /*
  *  call-seq:
- *     array.each_index {|index| block }  ->  array
- *  
- *  Same as <code>Array#each</code>, but passes the index of the element
- *  instead of the element itself.
- *     
+ *     ary.each_index { |index| block }  -> ary
+ *     ary.each_index                    -> Enumerator
+ *
+ *  Same as Array#each, but passes the +index+ of the element instead of the
+ *  element itself.
+ *
+ *  An Enumerator is returned if no block is given.
+ *
  *     a = [ "a", "b", "c" ]
  *     a.each_index {|x| print x, " -- " }
- *     
+ *
  *  produces:
- *     
+ *
  *     0 -- 1 -- 2 --
  */
 
 static VALUE
-rb_ary_each_index(ary)
-    VALUE ary;
+rb_ary_each_index(VALUE ary)
 {
     long i;
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
 
-    RETURN_ENUMERATOR(ary, 0, 0);
-    for (i=0; i<RARRAY(ary)->len; i++) {
+    for (i=0; i<RARRAY_LEN(ary); i++) {
 	rb_yield(LONG2NUM(i));
     }
     return ary;
@@ -1293,31 +1857,32 @@ rb_ary_each_index(ary)
 
 /*
  *  call-seq:
- *     array.reverse_each {|item| block } 
- *  
- *  Same as <code>Array#each</code>, but traverses <i>self</i> in reverse
- *  order.
- *     
+ *     ary.reverse_each { |item| block }  -> ary
+ *     ary.reverse_each                   -> Enumerator
+ *
+ *  Same as Array#each, but traverses +self+ in reverse order.
+ *
  *     a = [ "a", "b", "c" ]
  *     a.reverse_each {|x| print x, " " }
- *     
+ *
  *  produces:
- *     
+ *
  *     c b a
  */
 
 static VALUE
-rb_ary_reverse_each(ary)
-    VALUE ary;
+rb_ary_reverse_each(VALUE ary)
 {
     long len;
 
-    RETURN_ENUMERATOR(ary, 0, 0);
-    len = RARRAY(ary)->len;
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
+    len = RARRAY_LEN(ary);
     while (len--) {
-	rb_yield(RARRAY(ary)->ptr[len]);
-	if (RARRAY(ary)->len < len) {
-	    len = RARRAY(ary)->len;
+	long nlen;
+	rb_yield(RARRAY_AREF(ary, len));
+	nlen = RARRAY_LEN(ary);
+	if (nlen < len) {
+	    len = nlen;
 	}
     }
     return ary;
@@ -1325,556 +1890,879 @@ rb_ary_reverse_each(ary)
 
 /*
  *  call-seq:
- *     array.length -> int
- *  
- *  Returns the number of elements in <i>self</i>. May be zero.
- *     
+ *     ary.length -> int
+ *
+ *  Returns the number of elements in +self+. May be zero.
+ *
  *     [ 1, 2, 3, 4, 5 ].length   #=> 5
+ *     [].length                  #=> 0
  */
 
 static VALUE
-rb_ary_length(ary)
-    VALUE ary;
+rb_ary_length(VALUE ary)
 {
-    return LONG2NUM(RARRAY(ary)->len);
+    long len = RARRAY_LEN(ary);
+    return LONG2NUM(len);
 }
 
 /*
  *  call-seq:
- *     array.empty?   -> true or false
- *  
- *  Returns <code>true</code> if <i>self</i> array contains no elements.
- *     
+ *     ary.empty?   -> true or false
+ *
+ *  Returns +true+ if +self+ contains no elements.
+ *
  *     [].empty?   #=> true
  */
 
 static VALUE
-rb_ary_empty_p(ary)
-    VALUE ary;
+rb_ary_empty_p(VALUE ary)
 {
-    if (RARRAY(ary)->len == 0)
+    if (RARRAY_LEN(ary) == 0)
 	return Qtrue;
     return Qfalse;
 }
 
 VALUE
-rb_ary_dup(ary)
-    VALUE ary;
+rb_ary_dup(VALUE ary)
 {
-    VALUE dup = rb_ary_new2(RARRAY(ary)->len);
-
-    DUPSETUP(dup, ary);
-    MEMCPY(RARRAY(dup)->ptr, RARRAY(ary)->ptr, VALUE, RARRAY(ary)->len);
-    RARRAY(dup)->len = RARRAY(ary)->len;
+    long len = RARRAY_LEN(ary);
+    VALUE dup = rb_ary_new2(len);
+    ary_memcpy(dup, 0, len, RARRAY_CONST_PTR(ary));
+    ARY_SET_LEN(dup, len);
     return dup;
 }
 
+VALUE
+rb_ary_resurrect(VALUE ary)
+{
+    return rb_ary_new4(RARRAY_LEN(ary), RARRAY_CONST_PTR(ary));
+}
+
 extern VALUE rb_output_fs;
 
+static void ary_join_1(VALUE obj, VALUE ary, VALUE sep, long i, VALUE result, int *first);
+
 static VALUE
-inspect_join(ary, arg)
-    VALUE ary;
-    VALUE *arg;
+recursive_join(VALUE obj, VALUE argp, int recur)
+{
+    VALUE *arg = (VALUE *)argp;
+    VALUE ary = arg[0];
+    VALUE sep = arg[1];
+    VALUE result = arg[2];
+    int *first = (int *)arg[3];
+
+    if (recur) {
+	rb_raise(rb_eArgError, "recursive array join");
+    }
+    else {
+	ary_join_1(obj, ary, sep, 0, result, first);
+    }
+    return Qnil;
+}
+
+static void
+ary_join_0(VALUE ary, VALUE sep, long max, VALUE result)
 {
-    return rb_ary_join(arg[0], arg[1]);
+    long i;
+    VALUE val;
+
+    if (max > 0) rb_enc_copy(result, RARRAY_AREF(ary, 0));
+    for (i=0; i<max; i++) {
+	val = RARRAY_AREF(ary, i);
+	if (i > 0 && !NIL_P(sep))
+	    rb_str_buf_append(result, sep);
+	rb_str_buf_append(result, val);
+	if (OBJ_TAINTED(val)) OBJ_TAINT(result);
+    }
 }
 
-VALUE
-rb_ary_join(ary, sep)
-    VALUE ary, sep;
+static void
+ary_join_1(VALUE obj, VALUE ary, VALUE sep, long i, VALUE result, int *first)
 {
-    long len = 1, i;
-    int taint = Qfalse;
-    VALUE result, tmp;
+    VALUE val, tmp;
 
-    if (RARRAY(ary)->len == 0) return rb_str_new(0, 0);
-    if (OBJ_TAINTED(ary) || OBJ_TAINTED(sep)) taint = Qtrue;
+    for (; i<RARRAY_LEN(ary); i++) {
+	if (i > 0 && !NIL_P(sep))
+	    rb_str_buf_append(result, sep);
 
-    for (i=0; i<RARRAY(ary)->len; i++) {
-	tmp = rb_check_string_type(RARRAY(ary)->ptr[i]);
-	len += NIL_P(tmp) ? 10 : RSTRING(tmp)->len;
-    }
-    if (!NIL_P(sep)) {
-	StringValue(sep);
-	len += RSTRING(sep)->len * (RARRAY(ary)->len - 1);
-    }
-    result = rb_str_buf_new(len);
-    for (i=0; i<RARRAY(ary)->len; i++) {
-	tmp = RARRAY(ary)->ptr[i];
-	switch (TYPE(tmp)) {
-	  case T_STRING:
-	    break;
-	  case T_ARRAY:
-	    if (tmp == ary || rb_inspecting_p(tmp)) {
-		tmp = rb_str_new2("[...]");
+	val = RARRAY_AREF(ary, i);
+	if (RB_TYPE_P(val, T_STRING)) {
+	  str_join:
+	    rb_str_buf_append(result, val);
+	    *first = FALSE;
+	}
+	else if (RB_TYPE_P(val, T_ARRAY)) {
+	    obj = val;
+	  ary_join:
+	    if (val == ary) {
+		rb_raise(rb_eArgError, "recursive array join");
 	    }
 	    else {
-		VALUE args[2];
+		VALUE args[4];
 
-		args[0] = tmp;
+		args[0] = val;
 		args[1] = sep;
-		tmp = rb_protect_inspect(inspect_join, ary, (VALUE)args);
+		args[2] = result;
+		args[3] = (VALUE)first;
+		rb_exec_recursive(recursive_join, obj, (VALUE)args);
 	    }
-	    break;
-	  default:
-	    tmp = rb_obj_as_string(tmp);
 	}
-	if (i > 0 && !NIL_P(sep))
-	    rb_str_buf_append(result, sep);
-	rb_str_buf_append(result, tmp);
-	if (OBJ_TAINTED(tmp)) taint = Qtrue;
+	else {
+	    tmp = rb_check_string_type(val);
+	    if (!NIL_P(tmp)) {
+		val = tmp;
+		goto str_join;
+	    }
+	    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;
+	}
+    }
+}
+
+VALUE
+rb_ary_join(VALUE ary, VALUE sep)
+{
+    long len = 1, i;
+    int taint = FALSE;
+    VALUE val, tmp, result;
+
+    if (RARRAY_LEN(ary) == 0) return rb_usascii_str_new(0, 0);
+    if (OBJ_TAINTED(ary)) taint = TRUE;
+
+    if (!NIL_P(sep)) {
+	StringValue(sep);
+	len += RSTRING_LEN(sep) * (RARRAY_LEN(ary) - 1);
+    }
+    for (i=0; i<RARRAY_LEN(ary); i++) {
+	val = RARRAY_AREF(ary, i);
+	tmp = rb_check_string_type(val);
+
+	if (NIL_P(tmp) || tmp != val) {
+	    int first;
+	    result = rb_str_buf_new(len + (RARRAY_LEN(ary)-i)*10);
+	    rb_enc_associate(result, rb_usascii_encoding());
+	    if (taint) OBJ_TAINT(result);
+	    ary_join_0(ary, sep, i, result);
+	    first = i == 0;
+	    ary_join_1(ary, ary, sep, i, result, &first);
+	    return result;
+	}
+
+	len += RSTRING_LEN(tmp);
     }
 
+    result = rb_str_buf_new(len);
     if (taint) OBJ_TAINT(result);
+    ary_join_0(ary, sep, RARRAY_LEN(ary), result);
+
     return result;
 }
 
 /*
  *  call-seq:
- *     array.join(sep=$,)    -> str
- *  
+ *     ary.join(separator=$,)    -> str
+ *
  *  Returns a string created by converting each element of the array to
- *  a string, separated by <i>sep</i>.
- *     
+ *  a string, separated by the given +separator+.
+ *  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"
  */
 
 static VALUE
-rb_ary_join_m(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_join_m(int argc, VALUE *argv, VALUE ary)
 {
     VALUE sep;
 
     rb_scan_args(argc, argv, "01", &sep);
     if (NIL_P(sep)) sep = rb_output_fs;
-    
+
     return rb_ary_join(ary, sep);
 }
 
+static VALUE
+inspect_ary(VALUE ary, VALUE dummy, int recur)
+{
+    int tainted = OBJ_TAINTED(ary);
+    long i;
+    VALUE s, str;
+
+    if (recur) return rb_usascii_str_new_cstr("[...]");
+    str = rb_str_buf_new2("[");
+    for (i=0; i<RARRAY_LEN(ary); i++) {
+	s = rb_inspect(RARRAY_AREF(ary, i));
+	if (OBJ_TAINTED(s)) tainted = TRUE;
+	if (i > 0) rb_str_buf_cat2(str, ", ");
+	else rb_enc_copy(str, s);
+	rb_str_buf_append(str, s);
+    }
+    rb_str_buf_cat2(str, "]");
+    if (tainted) OBJ_TAINT(str);
+    return str;
+}
+
 /*
  *  call-seq:
- *     array.to_s -> string
- *  
- *  Returns _self_<code>.join</code>.
- *     
- *     [ "a", "e", "i", "o" ].to_s   #=> "aeio"
+ *     ary.inspect  -> string
+ *     ary.to_s     -> string
  *
+ *  Creates a string representation of +self+.
+ *
+ *     [ "a", "b", "c" ].to_s     #=> "[\"a\", \"b\", \"c\"]"
  */
 
-VALUE
-rb_ary_to_s(ary)
-    VALUE ary;
+static VALUE
+rb_ary_inspect(VALUE ary)
 {
-    if (RARRAY(ary)->len == 0) return rb_str_new(0, 0);
-    
-    return rb_ary_join(ary, rb_output_fs);
+    if (RARRAY_LEN(ary) == 0) return rb_usascii_str_new2("[]");
+    return rb_exec_recursive(inspect_ary, ary, 0);
 }
 
-static ID inspect_key;
+VALUE
+rb_ary_to_s(VALUE ary)
+{
+    return rb_ary_inspect(ary);
+}
 
-struct inspect_arg {
-    VALUE (*func)();
-    VALUE arg1, arg2;
-};
+/*
+ *  call-seq:
+ *     ary.to_a     -> ary
+ *
+ *  Returns +self+.
+ *
+ *  If called on a subclass of Array, converts the receiver to an Array object.
+ */
 
 static VALUE
-inspect_call(arg)
-    struct inspect_arg *arg;
+rb_ary_to_a(VALUE ary)
 {
-    return (*arg->func)(arg->arg1, arg->arg2);
+    if (rb_obj_class(ary) != rb_cArray) {
+	VALUE dup = rb_ary_new2(RARRAY_LEN(ary));
+	rb_ary_replace(dup, ary);
+	return dup;
+    }
+    return ary;
 }
 
+/*
+ *  call-seq:
+ *     ary.to_h     -> hash
+ *
+ *  Returns the result of interpreting <i>ary</i> as an array of
+ *  <tt>[key, value]</tt> pairs.
+ *
+ *     [[:foo, :bar], [1, 2]].to_h
+ *       # => {:foo => :bar, 1 => 2}
+ */
+
 static VALUE
-get_inspect_tbl(create)
-    int create;
+rb_ary_to_h(VALUE ary)
 {
-    VALUE inspect_tbl = rb_thread_local_aref(rb_thread_current(), inspect_key);
-
-    if (NIL_P(inspect_tbl)) {
-	if (create) {
-	  tbl_init:
-	    inspect_tbl = rb_ary_new();
-	    rb_thread_local_aset(rb_thread_current(), inspect_key, inspect_tbl);
+    long i;
+    VALUE hash = rb_hash_new();
+    for (i=0; i<RARRAY_LEN(ary); i++) {
+	const VALUE elt = rb_ary_elt(ary, i);
+	const VALUE key_value_pair = rb_check_array_type(elt);
+	if (NIL_P(key_value_pair)) {
+	    rb_raise(rb_eTypeError, "wrong element type %"PRIsVALUE" at %ld (expected array)",
+		     rb_obj_class(elt), i);
 	}
+	if (RARRAY_LEN(key_value_pair) != 2) {
+	    rb_raise(rb_eArgError, "wrong array length at %ld (expected 2, was %ld)",
+		i, RARRAY_LEN(key_value_pair));
+	}
+	rb_hash_aset(hash, RARRAY_AREF(key_value_pair, 0), RARRAY_AREF(key_value_pair, 1));
     }
-    else if (TYPE(inspect_tbl) != T_ARRAY) {
-	rb_warn("invalid inspect_tbl value");
-	if (create) goto tbl_init;
-	rb_thread_local_aset(rb_thread_current(), inspect_key, Qnil);
-	return Qnil;
-    }
-    return inspect_tbl;
+    return hash;
 }
 
+/*
+ *  call-seq:
+ *     ary.to_ary -> ary
+ *
+ *  Returns +self+.
+ */
+
 static VALUE
-inspect_ensure(obj)
-    VALUE obj;
+rb_ary_to_ary_m(VALUE ary)
 {
-    VALUE inspect_tbl;
-
-    inspect_tbl = get_inspect_tbl(Qfalse);
-    if (!NIL_P(inspect_tbl)) {
-	rb_ary_pop(inspect_tbl);
-    }
-    return 0;
+    return ary;
 }
 
-VALUE
-rb_protect_inspect(func, obj, arg)
-    VALUE (*func)(ANYARGS);
-    VALUE obj, arg;
+static void
+ary_reverse(VALUE *p1, VALUE *p2)
 {
-    struct inspect_arg iarg;
-    VALUE inspect_tbl;
-    VALUE id;
-
-    inspect_tbl = get_inspect_tbl(Qtrue);
-    id = rb_obj_id(obj);
-    if (rb_ary_includes(inspect_tbl, id)) {
-	return (*func)(obj, arg);
+    while (p1 < p2) {
+	VALUE tmp = *p1;
+	*p1++ = *p2;
+	*p2-- = tmp;
     }
-    rb_ary_push(inspect_tbl, id);
-    iarg.func = func;
-    iarg.arg1 = obj;
-    iarg.arg2 = arg;
-
-    return rb_ensure(inspect_call, (VALUE)&iarg, inspect_ensure, obj);
 }
 
 VALUE
-rb_inspecting_p(obj)
-    VALUE obj;
+rb_ary_reverse(VALUE ary)
 {
-    VALUE inspect_tbl;
-
-    inspect_tbl = get_inspect_tbl(Qfalse);
-    if (NIL_P(inspect_tbl)) return Qfalse;
-    return rb_ary_includes(inspect_tbl, rb_obj_id(obj));
-}
-
-static VALUE
-inspect_ary(ary)
-    VALUE ary;
-{
-    int tainted = OBJ_TAINTED(ary);
-    long i;
-    VALUE s, str;
+    VALUE *p2;
+    long len = RARRAY_LEN(ary);
 
-    str = rb_str_buf_new2("[");
-    for (i=0; i<RARRAY(ary)->len; i++) {
-	s = rb_inspect(RARRAY(ary)->ptr[i]);
-	if (OBJ_TAINTED(s)) tainted = Qtrue;
-	if (i > 0) rb_str_buf_cat2(str, ", ");
-	rb_str_buf_append(str, s);
+    rb_ary_modify(ary);
+    if (len > 1) {
+	RARRAY_PTR_USE(ary, p1, {
+	    p2 = p1 + len - 1;	/* points last item */
+	    ary_reverse(p1, p2);
+	}); /* WB: no new reference */
     }
-    rb_str_buf_cat2(str, "]");
-    if (tainted) OBJ_TAINT(str);
-    return str;
+    return ary;
 }
 
 /*
  *  call-seq:
- *     array.inspect  -> string
+ *     ary.reverse!   -> ary
+ *
+ *  Reverses +self+ in place.
  *
- *  Create a printable version of <i>array</i>.
+ *     a = [ "a", "b", "c" ]
+ *     a.reverse!       #=> ["c", "b", "a"]
+ *     a                #=> ["c", "b", "a"]
  */
 
 static VALUE
-rb_ary_inspect(ary)
-    VALUE ary;
+rb_ary_reverse_bang(VALUE ary)
 {
-    if (RARRAY(ary)->len == 0) return rb_str_new2("[]");
-    if (rb_inspecting_p(ary)) return rb_str_new2("[...]");
-    return rb_protect_inspect(inspect_ary, ary, 0);
+    return rb_ary_reverse(ary);
 }
 
 /*
  *  call-seq:
- *     array.to_a     -> array
- *  
- *  Returns _self_. If called on a subclass of Array, converts
- *  the receiver to an Array object.
+ *     ary.reverse    -> new_ary
+ *
+ *  Returns a new array containing +self+'s elements in reverse order.
+ *
+ *     [ "a", "b", "c" ].reverse   #=> ["c", "b", "a"]
+ *     [ 1 ].reverse               #=> [1]
  */
 
 static VALUE
-rb_ary_to_a(ary)
-    VALUE ary;
+rb_ary_reverse_m(VALUE ary)
 {
-    if (rb_obj_class(ary) != rb_cArray) {
-	VALUE dup = rb_ary_new2(RARRAY(ary)->len);
-	rb_ary_replace(dup, ary);
-	return dup;
+    long len = RARRAY_LEN(ary);
+    VALUE dup = rb_ary_new2(len);
+
+    if (len > 0) {
+	const VALUE *p1 = RARRAY_CONST_PTR(ary);
+	VALUE *p2 = (VALUE *)RARRAY_CONST_PTR(dup) + len - 1;
+	do *p2-- = *p1++; while (--len > 0);
     }
-    return ary;
+    ARY_SET_LEN(dup, RARRAY_LEN(ary));
+    return dup;
 }
 
-/*
- *  call-seq:
- *     array.to_ary -> array
- *  
- *  Returns _self_.
- */
-
-static VALUE
-rb_ary_to_ary_m(ary)
-    VALUE ary;
+static inline long
+rotate_count(long cnt, long len)
 {
-    return ary;
+    return (cnt < 0) ? (len - (~cnt % len) - 1) : (cnt % len);
 }
 
 VALUE
-rb_ary_reverse(ary)
-    VALUE ary;
+rb_ary_rotate(VALUE ary, long cnt)
 {
-    VALUE *p1, *p2;
-    VALUE tmp;
-
     rb_ary_modify(ary);
-    if (RARRAY(ary)->len > 1) {
-	p1 = RARRAY(ary)->ptr;
-	p2 = p1 + RARRAY(ary)->len - 1;	/* points last item */
 
-	while (p1 < p2) {
-	    tmp = *p1;
-	    *p1++ = *p2;
-	    *p2-- = tmp;
+    if (cnt != 0) {
+	VALUE *ptr = RARRAY_PTR(ary);
+	long len = RARRAY_LEN(ary);
+
+	if (len > 0 && (cnt = rotate_count(cnt, len)) > 0) {
+	    --len;
+	    if (cnt < len) ary_reverse(ptr + cnt, ptr + len);
+	    if (--cnt > 0) ary_reverse(ptr, ptr + cnt);
+	    if (len > 0) ary_reverse(ptr, ptr + len);
+	    return ary;
 	}
     }
-    return ary;
+
+    return Qnil;
 }
 
 /*
  *  call-seq:
- *     array.reverse!   -> array 
- *  
- *  Reverses _self_ in place.
- *     
- *     a = [ "a", "b", "c" ]
- *     a.reverse!       #=> ["c", "b", "a"]
- *     a                #=> ["c", "b", "a"]
+ *     ary.rotate!(count=1)   -> ary
+ *
+ *  Rotates +self+ in place so that the element at +count+ comes first, and
+ *  returns +self+.
+ *
+ *  If +count+ is negative then it rotates in the opposite direction, starting
+ *  from the end of the array where +-1+ is the last element.
+ *
+ *     a = [ "a", "b", "c", "d" ]
+ *     a.rotate!        #=> ["b", "c", "d", "a"]
+ *     a                #=> ["b", "c", "d", "a"]
+ *     a.rotate!(2)     #=> ["d", "a", "b", "c"]
+ *     a.rotate!(-3)    #=> ["a", "b", "c", "d"]
  */
 
 static VALUE
-rb_ary_reverse_bang(ary)
-    VALUE ary;
+rb_ary_rotate_bang(int argc, VALUE *argv, VALUE ary)
 {
-    return rb_ary_reverse(ary);
+    long n = 1;
+
+    switch (argc) {
+      case 1: n = NUM2LONG(argv[0]);
+      case 0: break;
+      default: rb_scan_args(argc, argv, "01", NULL);
+    }
+    rb_ary_rotate(ary, n);
+    return ary;
 }
 
 /*
  *  call-seq:
- *     array.reverse -> an_array
- *  
- *  Returns a new array containing <i>self</i>'s elements in reverse order.
- *     
- *     [ "a", "b", "c" ].reverse   #=> ["c", "b", "a"]
- *     [ 1 ].reverse               #=> [1]
+ *     ary.rotate(count=1)    -> new_ary
+ *
+ *  Returns a new array by rotating +self+ so that the element at +count+ is
+ *  the first element of the new array.
+ *
+ *  If +count+ is negative then it rotates in the opposite direction, starting
+ *  from the end of +self+ where +-1+ is the last element.
+ *
+ *     a = [ "a", "b", "c", "d" ]
+ *     a.rotate         #=> ["b", "c", "d", "a"]
+ *     a                #=> ["a", "b", "c", "d"]
+ *     a.rotate(2)      #=> ["c", "d", "a", "b"]
+ *     a.rotate(-3)     #=> ["b", "c", "d", "a"]
  */
 
 static VALUE
-rb_ary_reverse_m(ary)
-    VALUE ary;
+rb_ary_rotate_m(int argc, VALUE *argv, VALUE ary)
 {
-    return rb_ary_reverse(rb_ary_dup(ary));
+    VALUE rotated;
+    const VALUE *ptr;
+    long len, cnt = 1;
+
+    switch (argc) {
+      case 1: cnt = NUM2LONG(argv[0]);
+      case 0: break;
+      default: rb_scan_args(argc, argv, "01", NULL);
+    }
+
+    len = RARRAY_LEN(ary);
+    rotated = rb_ary_new2(len);
+    if (len > 0) {
+	cnt = rotate_count(cnt, len);
+	ptr = RARRAY_CONST_PTR(ary);
+	len -= cnt;
+	ary_memcpy(rotated, 0, len, ptr + cnt);
+	ary_memcpy(rotated, len, cnt, ptr);
+    }
+    ARY_SET_LEN(rotated, RARRAY_LEN(ary));
+    return rotated;
 }
 
 struct ary_sort_data {
     VALUE ary;
-    VALUE *ptr;
-    long len;
+    struct cmp_opt_data cmp_opt;
 };
 
-static void
-ary_sort_check(data)
-    struct ary_sort_data *data;
+static VALUE
+sort_reentered(VALUE ary)
 {
-    if (RARRAY(data->ary)->ptr != data->ptr || RARRAY(data->ary)->len != data->len) {
-	rb_raise(rb_eArgError, "array modified during sort");
+    if (RBASIC(ary)->klass) {
+	rb_raise(rb_eRuntimeError, "sort reentered");
     }
+    return Qnil;
 }
 
 static int
-sort_1(a, b, data)
-    VALUE *a, *b;
-    struct ary_sort_data *data;
+sort_1(const void *ap, const void *bp, void *dummy)
 {
-    VALUE retval = rb_yield_values(2, *a, *b);
+    struct ary_sort_data *data = dummy;
+    VALUE retval = sort_reentered(data->ary);
+    VALUE a = *(const VALUE *)ap, b = *(const VALUE *)bp;
     int n;
 
-    n = rb_cmpint(retval, *a, *b);
-    ary_sort_check(data);
+    retval = rb_yield_values(2, a, b);
+    n = rb_cmpint(retval, a, b);
+    sort_reentered(data->ary);
     return n;
 }
 
 static int
-sort_2(ap, bp, data)
-    VALUE *ap, *bp;
-    struct ary_sort_data *data;
+sort_2(const void *ap, const void *bp, void *dummy)
 {
-    VALUE retval;
-    VALUE a = *ap, b = *bp;
+    struct ary_sort_data *data = dummy;
+    VALUE retval = sort_reentered(data->ary);
+    VALUE a = *(const VALUE *)ap, b = *(const VALUE *)bp;
     int n;
 
-    if (FIXNUM_P(a) && FIXNUM_P(b)) {
+    if (FIXNUM_P(a) && FIXNUM_P(b) && CMP_OPTIMIZABLE(data->cmp_opt, Fixnum)) {
 	if ((long)a > (long)b) return 1;
 	if ((long)a < (long)b) return -1;
 	return 0;
     }
-    if (TYPE(a) == T_STRING) {
-	if (TYPE(b) == T_STRING) return rb_str_cmp(a, b);
+    if (STRING_P(a) && STRING_P(b) && CMP_OPTIMIZABLE(data->cmp_opt, String)) {
+	return rb_str_cmp(a, b);
     }
 
-    retval = rb_funcall(a, id_cmp, 1, b);
+    retval = rb_funcallv(a, id_cmp, 1, &b);
     n = rb_cmpint(retval, a, b);
-    ary_sort_check(data);
+    sort_reentered(data->ary);
 
     return n;
 }
 
-static VALUE
-sort_internal(ary)
-    VALUE ary;
-{
-    struct ary_sort_data data;
-
-    data.ary = ary;
-    data.ptr = RARRAY(ary)->ptr; data.len = RARRAY(ary)->len;
-    qsort(RARRAY(ary)->ptr, RARRAY(ary)->len, sizeof(VALUE),
-	  rb_block_given_p()?sort_1:sort_2, &data);
-    return ary;
-}
-
-static VALUE
-sort_unlock(ary)
-    VALUE ary;
-{
-    FL_UNSET(ary, ARY_TMPLOCK);
-    return ary;
-}
-
 /*
  *  call-seq:
- *     array.sort!                   -> array
- *     array.sort! {| a,b | block }  -> array 
- *  
- *  Sorts _self_. Comparisons for
- *  the sort will be done using the <code><=></code> operator or using
- *  an optional code block. The block implements a comparison between
- *  <i>a</i> and <i>b</i>, returning -1, 0, or +1. See also
- *  <code>Enumerable#sort_by</code>.
- *     
+ *     ary.sort!                   -> ary
+ *     ary.sort! { |a, b| block }  -> ary
+ *
+ *  Sorts +self+ in place.
+ *
+ *  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+.
+ *
+ *  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"]
+ *     a.sort!                    #=> ["a", "b", "c", "d", "e"]
+ *     a.sort! { |x,y| y <=> x }  #=> ["e", "d", "c", "b", "a"]
  */
 
 VALUE
-rb_ary_sort_bang(ary)
-    VALUE ary;
+rb_ary_sort_bang(VALUE ary)
 {
     rb_ary_modify(ary);
-    if (RARRAY(ary)->len > 1) {
-	FL_SET(ary, ARY_TMPLOCK);	/* prohibit modification during sort */
-	rb_ensure(sort_internal, ary, sort_unlock, ary);
+    assert(!ARY_SHARED_P(ary));
+    if (RARRAY_LEN(ary) > 1) {
+	VALUE tmp = ary_make_substitution(ary); /* only ary refers tmp */
+	struct ary_sort_data data;
+	long len = RARRAY_LEN(ary);
+
+	RBASIC_CLEAR_CLASS(tmp);
+	data.ary = tmp;
+	data.cmp_opt.opt_methods = 0;
+	data.cmp_opt.opt_inited = 0;
+	RARRAY_PTR_USE(tmp, ptr, {
+	    ruby_qsort(ptr, len, sizeof(VALUE),
+		       rb_block_given_p()?sort_1:sort_2, &data);
+	}); /* WB: no new reference */
+	rb_ary_modify(ary);
+        if (ARY_EMBED_P(tmp)) {
+            if (ARY_SHARED_P(ary)) { /* ary might be destructively operated in the given block */
+                rb_ary_unshare(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));
+        }
+        else {
+            if (!ARY_EMBED_P(ary) && ARY_HEAP_PTR(ary) == ARY_HEAP_PTR(tmp)) {
+                FL_UNSET_SHARED(ary);
+                ARY_SET_CAPA(ary, RARRAY_LEN(tmp));
+            }
+            else {
+                assert(!ARY_SHARED_P(tmp));
+                if (ARY_EMBED_P(ary)) {
+                    FL_UNSET_EMBED(ary);
+                }
+                else if (ARY_SHARED_P(ary)) {
+                    /* ary might be destructively operated in the given block */
+                    rb_ary_unshare(ary);
+                }
+                else {
+		    ruby_sized_xfree((void *)ARY_HEAP_PTR(ary), ARY_HEAP_SIZE(ary));
+                }
+                ARY_SET_PTR(ary, RARRAY_CONST_PTR(tmp));
+                ARY_SET_HEAP_LEN(ary, len);
+                ARY_SET_CAPA(ary, RARRAY_LEN(tmp));
+            }
+            /* tmp was lost ownership for the ptr */
+            FL_UNSET(tmp, FL_FREEZE);
+            FL_SET_EMBED(tmp);
+            ARY_SET_EMBED_LEN(tmp, 0);
+            FL_SET(tmp, FL_FREEZE);
+	}
+        /* tmp will be GC'ed. */
+        RBASIC_SET_CLASS_RAW(tmp, rb_cArray); /* rb_cArray must be marked */
     }
     return ary;
 }
 
 /*
  *  call-seq:
- *     array.sort                   -> an_array 
- *     array.sort {| a,b | block }  -> an_array 
- *  
- *  Returns a new array created by sorting <i>self</i>. Comparisons for
- *  the sort will be done using the <code><=></code> operator or using
- *  an optional code block. The block implements a comparison between
- *  <i>a</i> and <i>b</i>, returning -1, 0, or +1. See also
- *  <code>Enumerable#sort_by</code>.
- *     
+ *     ary.sort                   -> new_ary
+ *     ary.sort { |a, b| block }  -> new_ary
+ *
+ *  Returns a new array created by sorting +self+.
+ *
+ *  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+.
+ *
+ *
+ *  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"]
+ *     a.sort { |x,y| y <=> x }  #=> ["e", "d", "c", "b", "a"]
  */
 
 VALUE
-rb_ary_sort(ary)
-    VALUE ary;
+rb_ary_sort(VALUE ary)
 {
     ary = rb_ary_dup(ary);
     rb_ary_sort_bang(ary);
     return ary;
 }
 
+static VALUE rb_ary_bsearch_index(VALUE ary);
+
+/*
+ *  call-seq:
+ *     ary.bsearch {|x| block }  -> elem
+ *
+ *  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 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 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
+ *    i, and
+ *  - the block returns true for any element whose index is greater
+ *    than or equal to i.
+ *
+ *  This method returns the i-th element.  If i is equal to ary.size,
+ *  it returns nil.
+ *
+ *     ary = [0, 4, 7, 10, 12]
+ *     ary.bsearch {|x| x >=   4 } #=> 4
+ *     ary.bsearch {|x| x >=   6 } #=> 7
+ *     ary.bsearch {|x| x >=  -1 } #=> 0
+ *     ary.bsearch {|x| x >= 100 } #=> nil
+ *
+ *  In find-any mode (this behaves like libc's bsearch(3)), the block
+ *  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,
+ *  - the block returns zero for ary[k] if i <= k < j, and
+ *  - the block returns a negative number for ary[k] if
+ *    j <= k < ary.size.
+ *
+ *  Under this condition, this method returns any element whose index
+ *  is within i...j.  If i is equal to j (i.e., there is no element
+ *  that satisfies the block), this method returns nil.
+ *
+ *     ary = [0, 4, 7, 10, 12]
+ *     # try to find v such that 4 <= v < 8
+ *     ary.bsearch {|x| 1 - x / 4 } #=> 4 or 7
+ *     # try to find v such that 8 <= v < 10
+ *     ary.bsearch {|x| 4 - x / 2 } #=> nil
+ *
+ *  You must not mix the two modes at a time; the block must always
+ *  return either true/false, or always return a number.  It is
+ *  undefined which value is actually picked up at each iteration.
+ */
+
+static VALUE
+rb_ary_bsearch(VALUE ary)
+{
+    VALUE index_result = rb_ary_bsearch_index(ary);
+
+    if (FIXNUM_P(index_result)) {
+	return rb_ary_entry(ary, FIX2LONG(index_result));
+    }
+    return index_result;
+}
+
+/*
+ *  call-seq:
+ *     ary.bsearch_index {|x| block }  -> int or nil
+ *
+ *  By using binary search, finds an index of a value from this array which
+ *  meets the given condition in O(log n) where n is the size of the array.
+ *
+ *  It supports two modes, depending on the nature of the block and they are
+ *  exactly the same as in the case of #bsearch method with the only difference
+ *  being that this method returns the index of the element instead of the
+ *  element itself. For more details consult the documentation for #bsearch.
+ */
+
+static VALUE
+rb_ary_bsearch_index(VALUE ary)
+{
+    long low = 0, high = RARRAY_LEN(ary), mid;
+    int smaller = 0, satisfied = 0;
+    VALUE v, val;
+
+    RETURN_ENUMERATOR(ary, 0, 0);
+    while (low < high) {
+	mid = low + ((high - low) / 2);
+	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 */
+	}
+	else if (v == Qtrue) {
+	    satisfied = 1;
+	    smaller = 1;
+	}
+	else if (v == Qfalse || v == Qnil) {
+	    smaller = 0;
+	}
+	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;
+	    }
+	}
+	else {
+	    rb_raise(rb_eTypeError, "wrong argument type %"PRIsVALUE
+		     " (must be numeric, true, false or nil)",
+		     rb_obj_class(v));
+	}
+	if (smaller) {
+	    high = mid;
+	}
+	else {
+	    low = mid + 1;
+	}
+    }
+    if (!satisfied) return Qnil;
+    return INT2FIX(low);
+}
+
+
+static VALUE
+sort_by_i(RB_BLOCK_CALL_FUNC_ARGLIST(i, dummy))
+{
+    return rb_yield(i);
+}
+
+/*
+ *  call-seq:
+ *     ary.sort_by! { |obj| block }    -> ary
+ *     ary.sort_by!                    -> Enumerator
+ *
+ *  Sorts +self+ in place using a set of keys generated by mapping the
+ *  values in +self+ through the given block.
+ *
+ *  If no block is given, an Enumerator is returned instead.
+ *
+ */
+
+static VALUE
+rb_ary_sort_by_bang(VALUE ary)
+{
+    VALUE sorted;
+
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
+    rb_ary_modify(ary);
+    sorted = rb_block_call(ary, rb_intern("sort_by"), 0, 0, sort_by_i, 0);
+    rb_ary_replace(ary, sorted);
+    return ary;
+}
+
+
 /*
  *  call-seq:
- *     array.collect {|item| block }  -> an_array
- *     array.map     {|item| block }  -> an_array
- *  
- *  Invokes <i>block</i> once for each element of <i>self</i>. Creates a 
- *  new array containing the values returned by the block.
- *  See also <code>Enumerable#collect</code>.
- *     
+ *     ary.collect { |item| block }  -> new_ary
+ *     ary.map     { |item| block }  -> new_ary
+ *     ary.collect                   -> Enumerator
+ *     ary.map                       -> Enumerator
+ *
+ *  Invokes the given block once for each element of +self+.
+ *
+ *  Creates a new array containing the values returned by the block.
+ *
+ *  See also Enumerable#collect.
+ *
+ *  If no block is given, an Enumerator is returned instead.
+ *
  *     a = [ "a", "b", "c", "d" ]
- *     a.collect {|x| x + "!" }   #=> ["a!", "b!", "c!", "d!"]
- *     a                          #=> ["a", "b", "c", "d"]
+ *     a.collect { |x| x + "!" }         #=> ["a!", "b!", "c!", "d!"]
+ *     a.map.with_index { |x, i| x * i } #=> ["", "b", "cc", "ddd"]
+ *     a                                 #=> ["a", "b", "c", "d"]
  */
 
 static VALUE
-rb_ary_collect(ary)
-    VALUE ary;
+rb_ary_collect(VALUE ary)
 {
     long i;
     VALUE collect;
 
-    if (!rb_block_given_p()) {
-	return rb_ary_new4(RARRAY(ary)->len, RARRAY(ary)->ptr);
-    }
-
-    collect = rb_ary_new2(RARRAY(ary)->len);
-    for (i = 0; i < RARRAY(ary)->len; i++) {
-	rb_ary_push(collect, rb_yield(RARRAY(ary)->ptr[i]));
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
+    collect = rb_ary_new2(RARRAY_LEN(ary));
+    for (i = 0; i < RARRAY_LEN(ary); i++) {
+	rb_ary_push(collect, rb_yield(RARRAY_AREF(ary, i)));
     }
     return collect;
 }
 
-/* 
+
+/*
  *  call-seq:
- *     array.collect! {|item| block }   ->   array
- *     array.map!     {|item| block }   ->   array
+ *     ary.collect! {|item| block }   -> ary
+ *     ary.map!     {|item| block }   -> ary
+ *     ary.collect!                   -> Enumerator
+ *     ary.map!                       -> Enumerator
+ *
+ *  Invokes the given block once for each element of +self+, replacing the
+ *  element with the value returned by the block.
+ *
+ *  See also Enumerable#collect.
+ *
+ *  If no block is given, an Enumerator is returned instead.
  *
- *  Invokes the block once for each element of _self_, replacing the
- *  element with the value returned by _block_.
- *  See also <code>Enumerable#collect</code>.
- *   
  *     a = [ "a", "b", "c", "d" ]
- *     a.collect! {|x| x + "!" }
- *     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
-rb_ary_collect_bang(ary)
-    VALUE ary;
+rb_ary_collect_bang(VALUE ary)
 {
     long i;
 
-    RETURN_ENUMERATOR(ary, 0, 0);
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
     rb_ary_modify(ary);
-    for (i = 0; i < RARRAY(ary)->len; i++) {
-	rb_ary_store(ary, i, rb_yield(RARRAY(ary)->ptr[i]));
+    for (i = 0; i < RARRAY_LEN(ary); i++) {
+	rb_ary_store(ary, i, rb_yield(RARRAY_AREF(ary, i)));
     }
     return ary;
 }
 
 VALUE
-rb_values_at(obj, olen, argc, argv, func)
-    VALUE obj;
-    long olen;
-    int argc;
-    VALUE *argv;
-    VALUE (*func) _((VALUE,long));
+rb_get_values_at(VALUE obj, long olen, int argc, const VALUE *argv, VALUE (*func) (VALUE, long))
 {
     VALUE result = rb_ary_new2(argc);
     long beg, len, i, j;
@@ -1885,15 +2773,13 @@ rb_values_at(obj, olen, argc, argv, func)
 	    continue;
 	}
 	/* check if idx is Range */
-	switch (rb_range_beg_len(argv[i], &beg, &len, olen, 0)) {
-	  case Qfalse:
-	    break;
-	  case Qnil:
-	    continue;
-	  default:
-	    for (j=0; j<len; j++) {
-		rb_ary_push(result, (*func)(obj, j+beg));
+	if (rb_range_beg_len(argv[i], &beg, &len, olen, 1)) {
+	    long end = olen < beg+len ? olen : beg+len;
+	    for (j = beg; j < end; j++) {
+		rb_ary_push(result, (*func)(obj, j));
 	    }
+	    if (beg + len > j)
+		rb_ary_resize(result, RARRAY_LEN(result) + (beg + len) - j);
 	    continue;
 	}
 	rb_ary_push(result, (*func)(obj, NUM2LONG(argv[i])));
@@ -1901,70 +2787,188 @@ rb_values_at(obj, olen, argc, argv, func)
     return result;
 }
 
-/* 
+/*
  *  call-seq:
- *     array.values_at(selector,... )  -> an_array
+ *     ary.values_at(selector, ...)  -> new_ary
+ *
+ *  Returns an array containing the elements in +self+ corresponding to the
+ *  given +selector+(s).
+ *
+ *  The selectors may be either integer indices or ranges.
+ *
+ *  See also Array#select.
  *
- *  Returns an array containing the elements in
- *  _self_ corresponding to the given selector(s). The selectors
- *  may be either integer indices or ranges. 
- *  See also <code>Array#select</code>.
- * 
  *     a = %w{ a b c d e f }
- *     a.values_at(1, 3, 5)
- *     a.values_at(1, 3, 5, 7)
- *     a.values_at(-1, -3, -5, -7)
- *     a.values_at(1..3, 2...5)
+ *     a.values_at(1, 3, 5)          # => ["b", "d", "f"]
+ *     a.values_at(1, 3, 5, 7)       # => ["b", "d", "f", nil]
+ *     a.values_at(-1, -2, -2, -7)   # => ["f", "e", "e", nil]
+ *     a.values_at(4..6, 3...6)      # => ["e", "f", nil, "d", "e", "f"]
  */
 
 static VALUE
-rb_ary_values_at(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_values_at(int argc, VALUE *argv, VALUE ary)
 {
-    return rb_values_at(ary, RARRAY(ary)->len, argc, argv, rb_ary_entry);
+    return rb_get_values_at(ary, RARRAY_LEN(ary), argc, argv, rb_ary_entry);
 }
 
+
 /*
  *  call-seq:
- *     array.select {|item| block } -> an_array
- *  
- *  Invokes the block passing in successive elements from <i>array</i>,
- *  returning an array containing those elements for which the block
- *  returns a true value (equivalent to <code>Enumerable#select</code>).
- *     
+ *     ary.select { |item| block } -> new_ary
+ *     ary.select                  -> Enumerator
+ *
+ *  Returns a new array containing all elements of +ary+
+ *  for which the given +block+ returns a true value.
+ *
+ *  If no block is given, an Enumerator is returned instead.
+ *
+ *     [1,2,3,4,5].select { |num|  num.even?  }   #=> [2, 4]
+ *
  *     a = %w{ a b c d e f }
- *     a.select {|v| v =~ /[aeiou]/}   #=> ["a", "e"]
+ *     a.select { |v| v =~ /[aeiou]/ }  #=> ["a", "e"]
+ *
+ *  See also Enumerable#select.
  */
 
 static VALUE
-rb_ary_select(ary)
-    VALUE ary;
+rb_ary_select(VALUE ary)
 {
     VALUE result;
     long i;
 
-    RETURN_ENUMERATOR(ary, 0, 0);
-    result = rb_ary_new2(RARRAY(ary)->len);
-    for (i = 0; i < RARRAY(ary)->len; i++) {
-	if (RTEST(rb_yield(RARRAY(ary)->ptr[i]))) {
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
+    result = rb_ary_new2(RARRAY_LEN(ary));
+    for (i = 0; i < RARRAY_LEN(ary); i++) {
+	if (RTEST(rb_yield(RARRAY_AREF(ary, i)))) {
 	    rb_ary_push(result, rb_ary_elt(ary, i));
 	}
     }
     return result;
 }
 
+struct select_bang_arg {
+    VALUE ary;
+    long len[2];
+};
+
+static VALUE
+select_bang_i(VALUE a)
+{
+    volatile struct select_bang_arg *arg = (void *)a;
+    VALUE ary = arg->ary;
+    long i1, i2;
+
+    for (i1 = i2 = 0; i1 < RARRAY_LEN(ary); arg->len[0] = ++i1) {
+	VALUE v = RARRAY_AREF(ary, i1);
+	if (!RTEST(rb_yield(v))) continue;
+	if (i1 != i2) {
+	    rb_ary_store(ary, i2, v);
+	}
+	arg->len[1] = ++i2;
+    }
+    return (i1 == i2) ? Qnil : ary;
+}
+
+static VALUE
+select_bang_ensure(VALUE a)
+{
+    volatile struct select_bang_arg *arg = (void *)a;
+    VALUE ary = arg->ary;
+    long len = RARRAY_LEN(ary);
+    long i1 = arg->len[0], i2 = arg->len[1];
+
+    if (i2 < i1) {
+	if (i1 < len) {
+	    RARRAY_PTR_USE(ary, ptr, {
+		    MEMMOVE(ptr + i2, ptr + i1, VALUE, len - i1);
+		});
+	}
+	ARY_SET_LEN(ary, len - i1 + i2);
+    }
+    return ary;
+}
+
+/*
+ *  call-seq:
+ *     ary.select!  {|item| block } -> ary or nil
+ *     ary.select!                  -> Enumerator
+ *
+ *  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
+ *
+ *  If no block is given, an Enumerator is returned instead.
+ *
+ */
+
+static VALUE
+rb_ary_select_bang(VALUE ary)
+{
+    struct select_bang_arg args;
+
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
+    rb_ary_modify(ary);
+
+    args.ary = ary;
+    args.len[0] = args.len[1] = 0;
+    return rb_ensure(select_bang_i, (VALUE)&args, select_bang_ensure, (VALUE)&args);
+}
+
+/*
+ *  call-seq:
+ *     ary.keep_if { |item| block } -> ary
+ *     ary.keep_if                  -> Enumerator
+ *
+ *  Deletes every element of +self+ for which the given block evaluates to
+ *  +false+.
+ *
+ *  See also Array#select!
+ *
+ *  If no block is given, an Enumerator is returned instead.
+ *
+ *     a = %w{ a b c d e f }
+ *     a.keep_if { |v| v =~ /[aeiou]/ }  #=> ["a", "e"]
+ */
+
+static VALUE
+rb_ary_keep_if(VALUE ary)
+{
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
+    rb_ary_select_bang(ary);
+    return ary;
+}
+
+static void
+ary_resize_smaller(VALUE ary, long len)
+{
+    rb_ary_modify(ary);
+    if (RARRAY_LEN(ary) > len) {
+	ARY_SET_LEN(ary, len);
+	if (len * 2 < ARY_CAPA(ary) &&
+	    ARY_CAPA(ary) > ARY_DEFAULT_SIZE) {
+	    ary_resize_capa(ary, len * 2);
+	}
+    }
+}
+
 /*
  *  call-seq:
- *     array.delete(obj)            -> obj or nil 
- *     array.delete(obj) { block }  -> obj or nil
- *  
- *  Deletes items from <i>self</i> that are equal to <i>obj</i>. If
- *  the item is not found, returns <code>nil</code>. If the optional
- *  code block is given, returns the result of <i>block</i> if the item
- *  is not found.
- *     
+ *     ary.delete(obj)            -> item or nil
+ *     ary.delete(obj) { block }  -> item or result of block
+ *
+ *  Deletes all items from +self+ that are equal to +obj+.
+ *
+ *  Returns the last deleted item, or +nil+ if no matching item is found.
+ *
+ *  If the optional code block is given, the result of the block is returned if
+ *  the item is not found.  (To remove +nil+ elements and get an informative
+ *  return value, use Array#compact!)
+ *
  *     a = [ "a", "b", "b", "b", "c" ]
  *     a.delete("b")                   #=> "b"
  *     a                               #=> ["a", "c"]
@@ -1973,47 +2977,62 @@ rb_ary_select(ary)
  */
 
 VALUE
-rb_ary_delete(ary, item)
-    VALUE ary;
-    VALUE item;
+rb_ary_delete(VALUE ary, VALUE item)
 {
+    VALUE v = item;
     long i1, i2;
 
-    for (i1 = i2 = 0; i1 < RARRAY(ary)->len; i1++) {
-	VALUE e = RARRAY(ary)->ptr[i1];
+    for (i1 = i2 = 0; i1 < RARRAY_LEN(ary); i1++) {
+	VALUE e = RARRAY_AREF(ary, i1);
 
-	if (rb_equal(e, item)) continue;
+	if (rb_equal(e, item)) {
+	    v = e;
+	    continue;
+	}
 	if (i1 != i2) {
 	    rb_ary_store(ary, i2, e);
 	}
 	i2++;
     }
-    if (RARRAY(ary)->len == i2) {
+    if (RARRAY_LEN(ary) == i2) {
 	if (rb_block_given_p()) {
 	    return rb_yield(item);
 	}
 	return Qnil;
     }
 
-    rb_ary_modify(ary);
-    if (RARRAY(ary)->len > i2) {
-	RARRAY(ary)->len = i2;
-	if (i2 * 2 < RARRAY(ary)->aux.capa &&
-	    RARRAY(ary)->aux.capa > ARY_DEFAULT_SIZE) {
-	    REALLOC_N(RARRAY(ary)->ptr, VALUE, i2 * 2);
-	    RARRAY(ary)->aux.capa = i2 * 2;
+    ary_resize_smaller(ary, i2);
+
+    return v;
+}
+
+void
+rb_ary_delete_same(VALUE ary, VALUE item)
+{
+    long i1, i2;
+
+    for (i1 = i2 = 0; i1 < RARRAY_LEN(ary); i1++) {
+	VALUE e = RARRAY_AREF(ary, i1);
+
+	if (e == item) {
+	    continue;
+	}
+	if (i1 != i2) {
+	    rb_ary_store(ary, i2, e);
 	}
+	i2++;
+    }
+    if (RARRAY_LEN(ary) == i2) {
+	return;
     }
 
-    return item;
+    ary_resize_smaller(ary, i2);
 }
 
 VALUE
-rb_ary_delete_at(ary, pos)
-    VALUE ary;
-    long pos;
+rb_ary_delete_at(VALUE ary, long pos)
 {
-    long i, len = RARRAY(ary)->len;
+    long len = RARRAY_LEN(ary);
     VALUE del;
 
     if (pos >= len) return Qnil;
@@ -2023,52 +3042,48 @@ rb_ary_delete_at(ary, pos)
     }
 
     rb_ary_modify(ary);
-    del = RARRAY(ary)->ptr[pos];
-    for (i = pos + 1; i < len; i++, pos++) {
-	RARRAY(ary)->ptr[pos] = RARRAY(ary)->ptr[i];
-    }
-    RARRAY(ary)->len = pos;
+    del = RARRAY_AREF(ary, pos);
+    RARRAY_PTR_USE(ary, ptr, {
+	MEMMOVE(ptr+pos, ptr+pos+1, VALUE, len-pos-1);
+    });
+    ARY_INCREASE_LEN(ary, -1);
 
     return del;
 }
 
 /*
  *  call-seq:
- *     array.delete_at(index)  -> obj or nil
- *  
- *  Deletes the element at the specified index, returning that element,
- *  or <code>nil</code> if the index is out of range. See also
- *  <code>Array#slice!</code>.
- *     
- *     a = %w( ant bat cat dog )
+ *     ary.delete_at(index)  -> obj or nil
+ *
+ *  Deletes the element at the specified +index+, returning that element, or
+ *  +nil+ if the +index+ is out of range.
+ *
+ *  See also Array#slice!
+ *
+ *     a = ["ant", "bat", "cat", "dog"]
  *     a.delete_at(2)    #=> "cat"
  *     a                 #=> ["ant", "bat", "dog"]
  *     a.delete_at(99)   #=> nil
  */
 
 static VALUE
-rb_ary_delete_at_m(ary, pos)
-    VALUE ary, pos;
+rb_ary_delete_at_m(VALUE ary, VALUE pos)
 {
     return rb_ary_delete_at(ary, NUM2LONG(pos));
 }
 
 /*
  *  call-seq:
- *     array.slice!(index)         -> obj or nil
- *     array.slice!(start, length) -> sub_array or nil
- *     array.slice!(range)         -> sub_array or nil 
- *  
- *  Deletes the element(s) given by an index (optionally with a length)
- *  or by a range. Returns the deleted object, subarray, or
- *  <code>nil</code> if the index is out of range. Equivalent to:
- *     
- *     def slice!(*args)
- *       result = self[*args]
- *       self[*args] = nil
- *       result
- *     end
- *     
+ *     ary.slice!(index)         -> obj or nil
+ *     ary.slice!(start, length) -> new_ary or nil
+ *     ary.slice!(range)         -> new_ary or nil
+ *
+ *  Deletes the element(s) given by an +index+ (optionally up to +length+
+ *  elements) or by a +range+.
+ *
+ *  Returns the deleted object (or objects), or +nil+ if the +index+ is out of
+ *  range.
+ *
  *     a = [ "a", "b", "c" ]
  *     a.slice!(1)     #=> "b"
  *     a               #=> ["a", "c"]
@@ -2079,18 +3094,15 @@ rb_ary_delete_at_m(ary, pos)
  */
 
 static VALUE
-rb_ary_slice_bang(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_slice_bang(int argc, VALUE *argv, VALUE ary)
 {
     VALUE arg1, arg2;
     long pos, len, orig_len;
 
     rb_ary_modify_check(ary);
-    if (rb_scan_args(argc, argv, "11", &arg1, &arg2) == 2) {
-	pos = NUM2LONG(arg1);
-	len = NUM2LONG(arg2);
+    if (argc == 2) {
+	pos = NUM2LONG(argv[0]);
+	len = NUM2LONG(argv[1]);
       delete_pos_len:
 	if (len < 0) return Qnil;
 	orig_len = RARRAY_LEN(ary);
@@ -2103,12 +3115,18 @@ rb_ary_slice_bang(argc, argv, ary)
 	    len = orig_len - pos;
 	}
 	if (len == 0) return rb_ary_new2(0);
-	arg2 = rb_ary_new4(len, RARRAY_PTR(ary)+pos);
-	RBASIC(arg2)->klass = rb_obj_class(ary);
-	rb_ary_splice(ary, pos, len, Qnil);	/* Qundef in 1.9 */
+	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);
 	return arg2;
     }
 
+    if (argc != 1) {
+	/* error report */
+	rb_scan_args(argc, argv, "11", NULL, NULL);
+    }
+    arg1 = argv[0];
+
     if (!FIXNUM_P(arg1)) {
 	switch (rb_range_beg_len(arg1, &pos, &len, RARRAY_LEN(ary), 0)) {
 	  case Qtrue:
@@ -2126,170 +3144,262 @@ rb_ary_slice_bang(argc, argv, ary)
     return rb_ary_delete_at(ary, NUM2LONG(arg1));
 }
 
-/*
- *  call-seq:
- *     array.reject! {|item| block }  -> array or nil
- *  
- *  Equivalent to <code>Array#delete_if</code>, deleting elements from
- *  _self_ for which the block evaluates to true, but returns
- *  <code>nil</code> if no changes were made. Also see
- *  <code>Enumerable#reject</code>.
- */
+static VALUE
+ary_reject(VALUE orig, VALUE result)
+{
+    long i;
+
+    for (i = 0; i < RARRAY_LEN(orig); i++) {
+	VALUE v = RARRAY_AREF(orig, i);
+	if (!RTEST(rb_yield(v))) {
+	    rb_ary_push(result, v);
+	}
+    }
+    return result;
+}
 
 static VALUE
-rb_ary_reject_bang(ary)
-    VALUE ary;
+reject_bang_i(VALUE a)
 {
+    volatile struct select_bang_arg *arg = (void *)a;
+    VALUE ary = arg->ary;
     long i1, i2;
 
-    RETURN_ENUMERATOR(ary, 0, 0);
-    rb_ary_modify(ary);
-    for (i1 = i2 = 0; i1 < RARRAY(ary)->len; i1++) {
-	VALUE v = RARRAY(ary)->ptr[i1];
+    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);
 	}
-	i2++;
+	arg->len[1] = ++i2;
     }
-    if (RARRAY(ary)->len == i2) return Qnil;
-    if (i2 < RARRAY(ary)->len)
-	RARRAY(ary)->len = i2;
+    return (i1 == i2) ? Qnil : ary;
+}
 
-    return ary;
+static VALUE
+ary_reject_bang(VALUE ary)
+{
+    struct select_bang_arg args;
+
+    rb_ary_modify_check(ary);
+    args.ary = ary;
+    args.len[0] = args.len[1] = 0;
+    return rb_ensure(reject_bang_i, (VALUE)&args, select_bang_ensure, (VALUE)&args);
 }
 
 /*
  *  call-seq:
- *     array.reject {|item| block }  -> an_array
- *  
- *  Returns a new array containing the items in _self_
- *  for which the block is not true.
+ *     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+.
+ *
+ *  The array may not be changed instantly every time the block is called.
+ *
+ *  See also Enumerable#reject and Array#delete_if.
+ *
+ *  If no block is given, an Enumerator is returned instead.
  */
 
 static VALUE
-rb_ary_reject(ary)
-    VALUE ary;
+rb_ary_reject_bang(VALUE ary)
 {
-    RETURN_ENUMERATOR(ary, 0, 0);
-    ary = rb_ary_dup(ary);
-    rb_ary_reject_bang(ary);
-    return ary;
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
+    return ary_reject_bang(ary);
 }
 
 /*
  *  call-seq:
- *     array.delete_if {|item| block }  -> array
- *  
- *  Deletes every element of <i>self</i> for which <i>block</i> evaluates
- *  to <code>true</code>.
- *     
- *     a = [ "a", "b", "c" ]
- *     a.delete_if {|x| x >= "b" }   #=> ["a"]
+ *     ary.reject  {|item| block }  -> new_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.
+ *
+ *  See also Array#delete_if
+ *
+ *  If no block is given, an Enumerator is returned instead.
  */
 
 static VALUE
-rb_ary_delete_if(ary)
-    VALUE ary;
+rb_ary_reject(VALUE ary)
 {
-    RETURN_ENUMERATOR(ary, 0, 0);
-    rb_ary_reject_bang(ary);
+    VALUE rejected_ary;
+
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
+    rejected_ary = rb_ary_new();
+    ary_reject(ary, rejected_ary);
+    return rejected_ary;
+}
+
+/*
+ *  call-seq:
+ *     ary.delete_if { |item| block }  -> ary
+ *     ary.delete_if                   -> Enumerator
+ *
+ *  Deletes every element of +self+ for which block evaluates to +true+.
+ *
+ *  The array is changed instantly every time the block is called, not after
+ *  the iteration is over.
+ *
+ *  See also Array#reject!
+ *
+ *  If no block is given, an Enumerator is returned instead.
+ *
+ *     scores = [ 97, 42, 75 ]
+ *     scores.delete_if {|score| score < 80 }   #=> [97]
+ */
+
+static VALUE
+rb_ary_delete_if(VALUE ary)
+{
+    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
+    ary_reject_bang(ary);
     return ary;
 }
 
+static VALUE
+take_i(RB_BLOCK_CALL_FUNC_ARGLIST(val, cbarg))
+{
+    VALUE *args = (VALUE *)cbarg;
+    if (args[1]-- == 0) rb_iter_break();
+    if (argc > 1) val = rb_ary_new4(argc, argv);
+    rb_ary_push(args[0], val);
+    return Qnil;
+}
+
+static VALUE
+take_items(VALUE obj, long n)
+{
+    VALUE result = rb_check_array_type(obj);
+    VALUE args[2];
+
+    if (!NIL_P(result)) return rb_ary_subseq(result, 0, n);
+    result = rb_ary_new2(n);
+    args[0] = result; args[1] = (VALUE)n;
+    if (rb_check_block_call(obj, idEach, 0, 0, take_i, (VALUE)args) == Qundef)
+	rb_raise(rb_eTypeError, "wrong argument type %"PRIsVALUE" (must respond to :each)",
+		 rb_obj_class(obj));
+    return result;
+}
+
+
 /*
  *  call-seq:
- *     array.zip(arg, ...)                   -> an_array
- *     array.zip(arg, ...) {| arr | block }  -> nil
- *  
- *  Converts any arguments to arrays, then merges elements of
- *  <i>self</i> with corresponding elements from each argument. This
- *  generates a sequence of <code>self.size</code> <em>n</em>-element
- *  arrays, where <em>n</em> is one more that the count of arguments. If
- *  the size of any argument is less than <code>enumObj.size</code>,
- *  <code>nil</code> values are supplied. If a block given, it is
- *  invoked for each output array, otherwise an array of arrays is
- *  returned.
- *     
+ *     ary.zip(arg, ...)                  -> new_ary
+ *     ary.zip(arg, ...) { |arr| block }  -> nil
+ *
+ *  Converts any arguments to arrays, then merges elements of +self+ with
+ *  corresponding elements from each argument.
+ *
+ *  This generates a sequence of <code>ary.size</code> _n_-element arrays,
+ *  where _n_ is one more than the count of arguments.
+ *
+ *  If the size of any argument is less than the size of the initial array,
+ *  +nil+ values are supplied.
+ *
+ *  If a block is given, it is invoked for each output +array+, otherwise an
+ *  array of arrays is returned.
+ *
  *     a = [ 4, 5, 6 ]
  *     b = [ 7, 8, 9 ]
- *     
- *     [1,2,3].zip(a, b)      #=> [[1, 4, 7], [2, 5, 8], [3, 6, 9]]
- *     [1,2].zip(a,b)         #=> [[1, 4, 7], [2, 5, 8]]
- *     a.zip([1,2],[8])       #=> [[4,1,8], [5,2,nil], [6,nil,nil]]
+ *     [1, 2, 3].zip(a, b)   #=> [[1, 4, 7], [2, 5, 8], [3, 6, 9]]
+ *     [1, 2].zip(a, b)      #=> [[1, 4, 7], [2, 5, 8]]
+ *     a.zip([1, 2], [8])    #=> [[4, 1, 8], [5, 2, nil], [6, nil, nil]]
  */
 
 static VALUE
-rb_ary_zip(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_zip(int argc, VALUE *argv, VALUE ary)
 {
     int i, j;
-    long len;
-    VALUE result;
+    long len = RARRAY_LEN(ary);
+    VALUE result = Qnil;
 
     for (i=0; i<argc; i++) {
-	argv[i] = to_ary(argv[i]);
+	argv[i] = take_items(argv[i], len);
     }
+
     if (rb_block_given_p()) {
-	for (i=0; i<RARRAY(ary)->len; i++) {
-	    VALUE tmp = rb_ary_new2(argc+1);
+	int arity = rb_block_arity();
 
-	    rb_ary_push(tmp, rb_ary_elt(ary, i));
-	    for (j=0; j<argc; j++) {
-		rb_ary_push(tmp, rb_ary_elt(argv[j], i));
+	if (arity > 1) {
+	    VALUE work, *tmp;
+
+	    tmp = ALLOCV_N(VALUE, work, argc+1);
+
+	    for (i=0; i<RARRAY_LEN(ary); i++) {
+		tmp[0] = RARRAY_AREF(ary, i);
+		for (j=0; j<argc; j++) {
+		    tmp[j+1] = rb_ary_elt(argv[j], i);
+		}
+		rb_yield_values2(argc+1, tmp);
+	    }
+
+	    if (work) ALLOCV_END(work);
+	}
+	else {
+	    for (i=0; i<RARRAY_LEN(ary); i++) {
+		VALUE tmp = rb_ary_new2(argc+1);
+
+		rb_ary_push(tmp, RARRAY_AREF(ary, i));
+		for (j=0; j<argc; j++) {
+		    rb_ary_push(tmp, rb_ary_elt(argv[j], i));
+		}
+		rb_yield(tmp);
 	    }
-	    rb_yield(tmp);
 	}
-	return Qnil;
     }
-    len = RARRAY(ary)->len;
-    result = rb_ary_new2(len);
-    for (i=0; i<len; i++) {
-	VALUE tmp = rb_ary_new2(argc+1);
+    else {
+	result = rb_ary_new_capa(len);
+
+	for (i=0; i<len; i++) {
+	    VALUE tmp = rb_ary_new_capa(argc+1);
 
-	rb_ary_push(tmp, rb_ary_elt(ary, i));
-	for (j=0; j<argc; j++) {
-	    rb_ary_push(tmp, rb_ary_elt(argv[j], i));
+	    rb_ary_push(tmp, RARRAY_AREF(ary, i));
+	    for (j=0; j<argc; j++) {
+		rb_ary_push(tmp, rb_ary_elt(argv[j], i));
+	    }
+	    rb_ary_push(result, tmp);
 	}
-	rb_ary_push(result, tmp);
     }
+
     return result;
 }
 
 /*
  *  call-seq:
- *     array.transpose -> an_array
- *  
- *  Assumes that <i>self</i> is an array of arrays and transposes the
- *  rows and columns.
- *     
+ *     ary.transpose -> new_ary
+ *
+ *  Assumes that +self+ is an array of arrays and transposes the rows and
+ *  columns.
+ *
  *     a = [[1,2], [3,4], [5,6]]
  *     a.transpose   #=> [[1, 3, 5], [2, 4, 6]]
+ *
+ *  If the length of the subarrays don't match, an IndexError is raised.
  */
 
 static VALUE
-rb_ary_transpose(ary)
-    VALUE ary;
+rb_ary_transpose(VALUE ary)
 {
     long elen = -1, alen, i, j;
     VALUE tmp, result = 0;
 
-    alen = RARRAY(ary)->len;
+    alen = RARRAY_LEN(ary);
     if (alen == 0) return rb_ary_dup(ary);
     for (i=0; i<alen; i++) {
 	tmp = to_ary(rb_ary_elt(ary, i));
 	if (elen < 0) {		/* first element */
-	    elen = RARRAY(tmp)->len;
+	    elen = RARRAY_LEN(tmp);
 	    result = rb_ary_new2(elen);
 	    for (j=0; j<elen; j++) {
 		rb_ary_store(result, j, rb_ary_new2(alen));
 	    }
 	}
-	else if (elen != RARRAY(tmp)->len) {
-	    rb_raise(rb_eIndexError, "element size differs (%d should be %d)",
-		     RARRAY(tmp)->len, elen);
+	else if (elen != RARRAY_LEN(tmp)) {
+	    rb_raise(rb_eIndexError, "element size differs (%ld should be %ld)",
+		     RARRAY_LEN(tmp), elen);
 	}
 	for (j=0; j<elen; j++) {
 	    rb_ary_store(rb_ary_elt(result, j), i, rb_ary_elt(tmp, j));
@@ -2300,96 +3410,121 @@ rb_ary_transpose(ary)
 
 /*
  *  call-seq:
- *     array.replace(other_array)  -> array
- *  
- *  Replaces the contents of <i>self</i> with the contents of
- *  <i>other_array</i>, truncating or expanding if necessary.
- *     
+ *     ary.replace(other_ary)  -> ary
+ *     ary.initialize_copy(other_ary)	-> ary
+ *
+ *  Replaces the contents of +self+ with the contents of +other_ary+,
+ *  truncating or expanding if necessary.
+ *
  *     a = [ "a", "b", "c", "d", "e" ]
  *     a.replace([ "x", "y", "z" ])   #=> ["x", "y", "z"]
  *     a                              #=> ["x", "y", "z"]
  */
 
-static VALUE
-rb_ary_replace(copy, orig)
-    VALUE copy, orig;
+VALUE
+rb_ary_replace(VALUE copy, VALUE orig)
 {
-    VALUE shared;
-
-    rb_ary_modify(copy);
+    rb_ary_modify_check(copy);
     orig = to_ary(orig);
     if (copy == orig) return copy;
-    shared = ary_make_shared(orig);
-    if (RARRAY(copy)->ptr && !FL_TEST(copy, ELTS_SHARED))
-	free(RARRAY(copy)->ptr);
-    RARRAY(copy)->ptr = RARRAY(orig)->ptr;
-    RARRAY(copy)->len = RARRAY(orig)->len;
-    RARRAY(copy)->aux.shared = shared;
-    FL_SET(copy, ELTS_SHARED);
 
+    if (RARRAY_LEN(orig) <= RARRAY_EMBED_LEN_MAX) {
+        VALUE shared = 0;
+
+        if (ARY_OWNS_HEAP_P(copy)) {
+	    RARRAY_PTR_USE(copy, ptr, ruby_sized_xfree(ptr, ARY_HEAP_SIZE(copy)));
+	}
+        else if (ARY_SHARED_P(copy)) {
+            shared = ARY_SHARED(copy);
+            FL_UNSET_SHARED(copy);
+        }
+        FL_SET_EMBED(copy);
+	ary_memcpy(copy, 0, RARRAY_LEN(orig), RARRAY_CONST_PTR(orig));
+        if (shared) {
+            rb_ary_decrement_share(shared);
+        }
+        ARY_SET_LEN(copy, RARRAY_LEN(orig));
+    }
+    else {
+        VALUE shared = ary_make_shared(orig);
+        if (ARY_OWNS_HEAP_P(copy)) {
+	    RARRAY_PTR_USE(copy, ptr, ruby_sized_xfree(ptr, ARY_HEAP_SIZE(copy)));
+        }
+        else {
+            rb_ary_unshare_safe(copy);
+        }
+        FL_UNSET_EMBED(copy);
+        ARY_SET_PTR(copy, RARRAY_CONST_PTR(orig));
+        ARY_SET_LEN(copy, RARRAY_LEN(orig));
+        rb_ary_set_shared(copy, shared);
+    }
     return copy;
 }
 
-/* 
+/*
  *  call-seq:
- *     array.clear    ->  array
+ *     ary.clear    -> ary
  *
- *  Removes all elements from _self_.
+ *  Removes all elements from +self+.
  *
  *     a = [ "a", "b", "c", "d", "e" ]
  *     a.clear    #=> [ ]
  */
 
 VALUE
-rb_ary_clear(ary)
-    VALUE ary;
+rb_ary_clear(VALUE ary)
 {
-    rb_ary_modify(ary);
-    RARRAY(ary)->len = 0;
-    if (ARY_DEFAULT_SIZE * 2 < RARRAY(ary)->aux.capa) {
-	REALLOC_N(RARRAY(ary)->ptr, VALUE, ARY_DEFAULT_SIZE * 2);
-	RARRAY(ary)->aux.capa = ARY_DEFAULT_SIZE * 2;
+    rb_ary_modify_check(ary);
+    ARY_SET_LEN(ary, 0);
+    if (ARY_SHARED_P(ary)) {
+	if (!ARY_EMBED_P(ary)) {
+	    rb_ary_unshare(ary);
+	    FL_SET_EMBED(ary);
+	}
+    }
+    else if (ARY_DEFAULT_SIZE * 2 < ARY_CAPA(ary)) {
+	ary_resize_capa(ary, ARY_DEFAULT_SIZE * 2);
     }
     return ary;
 }
 
 /*
  *  call-seq:
- *     array.fill(obj)                                -> array
- *     array.fill(obj, start [, length])              -> array
- *     array.fill(obj, range )                        -> array
- *     array.fill {|index| block }                    -> array
- *     array.fill(start [, length] ) {|index| block } -> array
- *     array.fill(range) {|index| block }             -> array
- *  
- *  The first three forms set the selected elements of <i>self</i> (which
- *  may be the entire array) to <i>obj</i>. A <i>start</i> of
- *  <code>nil</code> is equivalent to zero. A <i>length</i> of
- *  <code>nil</code> is equivalent to <i>self.length</i>. The last three
- *  forms fill the array with the value of the block. The block is
- *  passed the absolute index of each element to be filled.
- *     
+ *     ary.fill(obj)                                 -> ary
+ *     ary.fill(obj, start [, length])               -> ary
+ *     ary.fill(obj, range )                         -> ary
+ *     ary.fill { |index| block }                    -> ary
+ *     ary.fill(start [, length] ) { |index| block } -> ary
+ *     ary.fill(range) { |index| block }             -> ary
+ *
+ *  The first three forms set the selected elements of +self+ (which
+ *  may be the entire array) to +obj+.
+ *
+ *  A +start+ of +nil+ is equivalent to zero.
+ *
+ *  A +length+ of +nil+ is equivalent to the length of the array.
+ *
+ *  The last three forms fill the array with the value of the given block,
+ *  which is passed the absolute index of each element to be filled.
+ *
+ *  Negative values of +start+ count from the end of the array, where +-1+ is
+ *  the last element.
+ *
  *     a = [ "a", "b", "c", "d" ]
  *     a.fill("x")              #=> ["x", "x", "x", "x"]
  *     a.fill("z", 2, 2)        #=> ["x", "x", "z", "z"]
  *     a.fill("y", 0..1)        #=> ["y", "y", "z", "z"]
- *     a.fill {|i| i*i}         #=> [0, 1, 4, 9]
- *     a.fill(-2) {|i| i*i*i}   #=> [0, 1, 8, 27]
+ *     a.fill { |i| i*i }       #=> [0, 1, 4, 9]
+ *     a.fill(-2) { |i| i*i*i } #=> [0, 1, 8, 27]
  */
 
 static VALUE
-rb_ary_fill(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_fill(int argc, VALUE *argv, VALUE ary)
 {
-    VALUE item, arg1, arg2;
+    VALUE item = Qundef, arg1, arg2;
     long beg = 0, end = 0, len = 0;
-    VALUE *p, *pend;
-    int block_p = Qfalse;
 
     if (rb_block_given_p()) {
-	block_p = Qtrue;
 	rb_scan_args(argc, argv, "02", &arg1, &arg2);
 	argc += 1;		/* hackish */
     }
@@ -2399,20 +3534,20 @@ rb_ary_fill(argc, argv, ary)
     switch (argc) {
       case 1:
 	beg = 0;
-	len = RARRAY(ary)->len;
+	len = RARRAY_LEN(ary);
 	break;
       case 2:
-	if (rb_range_beg_len(arg1, &beg, &len, RARRAY(ary)->len, 1)) {
+	if (rb_range_beg_len(arg1, &beg, &len, RARRAY_LEN(ary), 1)) {
 	    break;
 	}
 	/* fall through */
       case 3:
 	beg = NIL_P(arg1) ? 0 : NUM2LONG(arg1);
 	if (beg < 0) {
-	    beg = RARRAY(ary)->len + beg;
+	    beg = RARRAY_LEN(ary) + beg;
 	    if (beg < 0) beg = 0;
 	}
-	len = NIL_P(arg2) ? RARRAY(ary)->len - beg : NUM2LONG(arg2);
+	len = NIL_P(arg2) ? RARRAY_LEN(ary) - beg : NUM2LONG(arg2);
 	break;
     }
     rb_ary_modify(ary);
@@ -2423,91 +3558,134 @@ rb_ary_fill(argc, argv, ary)
 	rb_raise(rb_eArgError, "argument too big");
     }
     end = beg + len;
-    if (end > RARRAY(ary)->len) {
-	if (end >= RARRAY(ary)->aux.capa) {
-	    REALLOC_N(RARRAY(ary)->ptr, VALUE, end);
-	    RARRAY(ary)->aux.capa = end;
+    if (RARRAY_LEN(ary) < end) {
+	if (end >= ARY_CAPA(ary)) {
+	    ary_resize_capa(ary, end);
 	}
-	rb_mem_clear(RARRAY(ary)->ptr + RARRAY(ary)->len, end - RARRAY(ary)->len);
-	RARRAY(ary)->len = end;
+	ary_mem_clear(ary, RARRAY_LEN(ary), end - RARRAY_LEN(ary));
+	ARY_SET_LEN(ary, end);
     }
 
-    if (block_p) {
+    if (item == Qundef) {
 	VALUE v;
 	long i;
 
 	for (i=beg; i<end; i++) {
 	    v = rb_yield(LONG2NUM(i));
-	    if (i>=RARRAY(ary)->len) break;
-	    RARRAY(ary)->ptr[i] = v;
+	    if (i>=RARRAY_LEN(ary)) break;
+	    ARY_SET(ary, i, v);
 	}
     }
     else {
-	p = RARRAY(ary)->ptr + beg;
-	pend = p + len;
-	while (p < pend) {
-	    *p++ = item;
-	}
+	ary_memfill(ary, beg, len, item);
     }
     return ary;
 }
 
-/* 
+/*
  *  call-seq:
- *     array + other_array   -> an_array
+ *     ary + other_ary   -> new_ary
  *
- *  Concatenation---Returns a new array built by concatenating the
+ *  Concatenation --- Returns a new array built by concatenating the
  *  two arrays together to produce a third array.
- * 
+ *
  *     [ 1, 2, 3 ] + [ 4, 5 ]    #=> [ 1, 2, 3, 4, 5 ]
+ *     a = [ "a", "b", "c" ]
+ *     c = a + [ "d", "e", "f" ]
+ *     c                         #=> [ "a", "b", "c", "d", "e", "f" ]
+ *     a                         #=> [ "a", "b", "c" ]
+ *
+ *  Note that
+ *     x += y
+ *  is the same as
+ *     x = x + y
+ *  This means that it produces a new array. As a consequence,
+ *  repeated use of <code>+=</code> on arrays can be quite inefficient.
+ *
+ *  See also Array#concat.
  */
 
 VALUE
-rb_ary_plus(x, y)
-    VALUE x, y;
+rb_ary_plus(VALUE x, VALUE y)
 {
     VALUE z;
-    long len;
+    long len, xlen, ylen;
 
     y = to_ary(y);
-    len = RARRAY(x)->len + RARRAY(y)->len;
+    xlen = RARRAY_LEN(x);
+    ylen = RARRAY_LEN(y);
+    len = xlen + ylen;
     z = rb_ary_new2(len);
-    MEMCPY(RARRAY(z)->ptr, RARRAY(x)->ptr, VALUE, RARRAY(x)->len);
-    MEMCPY(RARRAY(z)->ptr + RARRAY(x)->len, RARRAY(y)->ptr, VALUE, RARRAY(y)->len);
-    RARRAY(z)->len = len;
+
+    ary_memcpy(z, 0, xlen, RARRAY_CONST_PTR(x));
+    ary_memcpy(z, xlen, ylen, RARRAY_CONST_PTR(y));
+    ARY_SET_LEN(z, len);
     return z;
 }
 
-/* 
+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:
- *     array.concat(other_array)   ->  array
+ *     ary.concat(other_ary1, other_ary2,...)   -> ary
+ *
+ *  Appends the elements of +other_ary+s to +self+.
  *
- *  Appends the elements in other_array 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#+.
  */
 
-
-VALUE
-rb_ary_concat(x, y)
-    VALUE x, y;
+static VALUE
+rb_ary_concat_multi(int argc, VALUE *argv, VALUE ary)
 {
-    y = to_ary(y);
-    if (RARRAY(y)->len > 0) {
-	rb_ary_splice(x, RARRAY(x)->len, 0, y);
+    rb_ary_modify_check(ary);
+
+    if (argc > 0) {
+	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 x;
+
+    return ary;
 }
 
+VALUE
+rb_ary_concat(VALUE x, VALUE y)
+{
+    return ary_append(x, to_ary(y));
+}
 
-/* 
+/*
  *  call-seq:
- *     array * int     ->    an_array
- *     array * str     ->    a_string
+ *     ary * int     -> new_ary
+ *     ary * str     -> new_string
+ *
+ *  Repetition --- With a String argument, equivalent to
+ *  <code>ary.join(str)</code>.
  *
- *  Repetition---With a String argument, equivalent to
- *  self.join(str). Otherwise, returns a new array
- *  built by concatenating the _int_ copies of _self_.
+ *  Otherwise, returns a new array built by concatenating the +int+ copies of
+ *  +self+.
  *
  *
  *     [ 1, 2, 3 ] * 3    #=> [ 1, 2, 3, 1, 2, 3, 1, 2, 3 ]
@@ -2516,11 +3694,11 @@ rb_ary_concat(x, y)
  */
 
 static VALUE
-rb_ary_times(ary, times)
-    VALUE ary, times;
+rb_ary_times(VALUE ary, VALUE times)
 {
     VALUE ary2, tmp;
-    long i, len;
+    const VALUE *ptr;
+    long t, len;
 
     tmp = rb_check_string_type(times);
     if (!NIL_P(tmp)) {
@@ -2528,37 +3706,50 @@ rb_ary_times(ary, times)
     }
 
     len = NUM2LONG(times);
-    if (len == 0) return ary_new(rb_obj_class(ary), 0);
+    if (len == 0) {
+	ary2 = ary_new(rb_obj_class(ary), 0);
+	goto out;
+    }
     if (len < 0) {
 	rb_raise(rb_eArgError, "negative argument");
     }
-    if (ARY_MAX_SIZE/len < RARRAY(ary)->len) {
+    if (ARY_MAX_SIZE/len < RARRAY_LEN(ary)) {
 	rb_raise(rb_eArgError, "argument too big");
     }
-    len *= RARRAY(ary)->len;
+    len *= RARRAY_LEN(ary);
 
     ary2 = ary_new(rb_obj_class(ary), len);
-    RARRAY(ary2)->len = len;
-
-    for (i=0; i<len; i+=RARRAY(ary)->len) {
-	MEMCPY(RARRAY(ary2)->ptr+i, RARRAY(ary)->ptr, VALUE, RARRAY(ary)->len);
+    ARY_SET_LEN(ary2, len);
+
+    ptr = RARRAY_CONST_PTR(ary);
+    t = RARRAY_LEN(ary);
+    if (0 < t) {
+	ary_memcpy(ary2, 0, t, ptr);
+	while (t <= len/2) {
+	    ary_memcpy(ary2, t, t, RARRAY_CONST_PTR(ary2));
+            t *= 2;
+        }
+        if (t < len) {
+	    ary_memcpy(ary2, t, len-t, RARRAY_CONST_PTR(ary2));
+        }
     }
+  out:
     OBJ_INFECT(ary2, ary);
 
     return ary2;
 }
 
-/* 
+/*
  *  call-seq:
- *     array.assoc(obj)   ->  an_array  or  nil
+ *     ary.assoc(obj)   -> element_ary  or  nil
+ *
+ *  Searches through an array whose elements are also arrays comparing +obj+
+ *  with the first element of each contained array using <code>obj.==</code>.
+ *
+ *  Returns the first contained array that matches (that is, the first
+ *  associated array), or +nil+ if no match is found.
  *
- *  Searches through an array whose elements are also arrays
- *  comparing _obj_ with the first element of each contained array
- *  using obj.==.
- *  Returns the first contained array that matches (that
- *  is, the first associated array),
- *  or +nil+ if no match is found.
- *  See also <code>Array#rassoc</code>.
+ *  See also Array#rassoc
  *
  *     s1 = [ "colors", "red", "blue", "green" ]
  *     s2 = [ "letters", "a", "b", "c" ]
@@ -2569,16 +3760,15 @@ rb_ary_times(ary, times)
  */
 
 VALUE
-rb_ary_assoc(ary, key)
-    VALUE ary, key;
+rb_ary_assoc(VALUE ary, VALUE key)
 {
     long i;
     VALUE v;
 
-    for (i = 0; i < RARRAY(ary)->len; ++i) {
-	v = rb_check_array_type(RARRAY(ary)->ptr[i]);
-	if (!NIL_P(v) && RARRAY(v)->len > 0 &&
-	    rb_equal(RARRAY(v)->ptr[0], key))
+    for (i = 0; i < RARRAY_LEN(ary); ++i) {
+	v = rb_check_array_type(RARRAY_AREF(ary, i));
+	if (!NIL_P(v) && RARRAY_LEN(v) > 0 &&
+	    rb_equal(RARRAY_AREF(v, 0), key))
 	    return v;
     }
     return Qnil;
@@ -2586,58 +3776,78 @@ rb_ary_assoc(ary, key)
 
 /*
  *  call-seq:
- *     array.rassoc(key) -> an_array or nil
- *  
- *  Searches through the array whose elements are also arrays. Compares
- *  <em>key</em> with the second element of each contained array using
- *  <code>==</code>. Returns the first contained array that matches. See
- *  also <code>Array#assoc</code>.
- *     
+ *     ary.rassoc(obj) -> element_ary or nil
+ *
+ *  Searches through the array whose elements are also arrays.
+ *
+ *  Compares +obj+ with the second element of each contained array using
+ *  <code>obj.==</code>.
+ *
+ *  Returns the first contained array that matches +obj+.
+ *
+ *  See also Array#assoc.
+ *
  *     a = [ [ 1, "one"], [2, "two"], [3, "three"], ["ii", "two"] ]
  *     a.rassoc("two")    #=> [2, "two"]
  *     a.rassoc("four")   #=> nil
  */
 
 VALUE
-rb_ary_rassoc(ary, value)
-    VALUE ary, value;
+rb_ary_rassoc(VALUE ary, VALUE value)
 {
     long i;
     VALUE v;
 
-    for (i = 0; i < RARRAY(ary)->len; ++i) {
-	v = RARRAY(ary)->ptr[i];
-	if (TYPE(v) == T_ARRAY &&
-	    RARRAY(v)->len > 1 &&
-	    rb_equal(RARRAY(v)->ptr[1], value))
+    for (i = 0; i < RARRAY_LEN(ary); ++i) {
+	v = RARRAY_AREF(ary, i);
+	if (RB_TYPE_P(v, T_ARRAY) &&
+	    RARRAY_LEN(v) > 1 &&
+	    rb_equal(RARRAY_AREF(v, 1), value))
 	    return v;
     }
     return Qnil;
 }
 
-static VALUE recursive_equal _((VALUE, VALUE, int));
 static VALUE
-recursive_equal(ary1, ary2, recur)
-    VALUE ary1, ary2;
-    int recur;
-{
-    long i;
-
-    if (recur) return Qfalse;
-    for (i=0; i<RARRAY(ary1)->len; i++) {
-	if (!rb_equal(rb_ary_elt(ary1, i), rb_ary_elt(ary2, i)))
-	    return Qfalse;
+recursive_equal(VALUE ary1, VALUE ary2, int recur)
+{
+    long i, len1;
+    const VALUE *p1, *p2;
+
+    if (recur) return Qtrue; /* Subtle! */
+
+    p1 = RARRAY_CONST_PTR(ary1);
+    p2 = RARRAY_CONST_PTR(ary2);
+    len1 = RARRAY_LEN(ary1);
+
+    for (i = 0; i < len1; i++) {
+	if (*p1 != *p2) {
+	    if (rb_equal(*p1, *p2)) {
+		len1 = RARRAY_LEN(ary1);
+		if (len1 != RARRAY_LEN(ary2))
+		    return Qfalse;
+		if (len1 < i)
+		    return Qtrue;
+		p1 = RARRAY_CONST_PTR(ary1) + i;
+		p2 = RARRAY_CONST_PTR(ary2) + i;
+	    }
+	    else {
+		return Qfalse;
+	    }
+	}
+	p1++;
+	p2++;
     }
     return Qtrue;
 }
 
-/* 
+/*
  *  call-seq:
- *     array == other_array   ->   bool
+ *     ary == other_ary   ->   bool
  *
- *  Equality---Two arrays are equal if they contain the same number
- *  of elements and if each element is equal to (according to
- *  Object.==) the corresponding element in the other array.
+ *  Equality --- Two arrays are equal if they contain the same number of
+ *  elements and if each element is equal to (according to Object#==) the
+ *  corresponding element in +other_ary+.
  *
  *     [ "a", "c" ]    == [ "a", "c", 7 ]     #=> false
  *     [ "a", "c", 7 ] == [ "a", "c", 7 ]     #=> true
@@ -2646,30 +3856,27 @@ recursive_equal(ary1, ary2, recur)
  */
 
 static VALUE
-rb_ary_equal(ary1, ary2)
-    VALUE ary1, ary2;
+rb_ary_equal(VALUE ary1, VALUE ary2)
 {
     if (ary1 == ary2) return Qtrue;
-    if (TYPE(ary2) != T_ARRAY) {
-	if (!rb_respond_to(ary2, rb_intern("to_ary"))) {
+    if (!RB_TYPE_P(ary2, T_ARRAY)) {
+	if (!rb_respond_to(ary2, idTo_ary)) {
 	    return Qfalse;
 	}
 	return rb_equal(ary2, ary1);
     }
-    if (RARRAY(ary1)->len != RARRAY(ary2)->len) return Qfalse;
-    return rb_exec_recursive(recursive_equal, ary1, ary2);
+    if (RARRAY_LEN(ary1) != RARRAY_LEN(ary2)) return Qfalse;
+    if (RARRAY_CONST_PTR(ary1) == RARRAY_CONST_PTR(ary2)) return Qtrue;
+    return rb_exec_recursive_paired(recursive_equal, ary1, ary2, ary2);
 }
 
-static VALUE recursive_eql _((VALUE, VALUE, int));
 static VALUE
-recursive_eql(ary1, ary2, recur)
-    VALUE ary1, ary2;
-    int recur;
+recursive_eql(VALUE ary1, VALUE ary2, int recur)
 {
     long i;
 
-    if (recur) return Qfalse;
-    for (i=0; i<RARRAY(ary1)->len; i++) {
+    if (recur) return Qtrue; /* Subtle! */
+    for (i=0; i<RARRAY_LEN(ary1); i++) {
 	if (!rb_eql(rb_ary_elt(ary1, i), rb_ary_elt(ary2, i)))
 	    return Qfalse;
     }
@@ -2678,82 +3885,76 @@ recursive_eql(ary1, ary2, recur)
 
 /*
  *  call-seq:
- *     array.eql?(other)  -> true or false
+ *     ary.eql?(other)  -> true or false
  *
- *  Returns <code>true</code> if _array_ and _other_ are the same object,
- *  or are both arrays with the same content.
+ *  Returns +true+ if +self+ and +other+ are the same object,
+ *  or are both arrays with the same content (according to Object#eql?).
  */
 
 static VALUE
-rb_ary_eql(ary1, ary2)
-    VALUE ary1, ary2;
+rb_ary_eql(VALUE ary1, VALUE ary2)
 {
     if (ary1 == ary2) return Qtrue;
-    if (TYPE(ary2) != T_ARRAY) return Qfalse;
-    if (RARRAY(ary1)->len != RARRAY(ary2)->len) return Qfalse;
-    return rb_exec_recursive(recursive_eql, ary1, ary2);
-}
-
-static VALUE recursive_hash _((VALUE, VALUE, int));
-static VALUE
-recursive_hash(ary, dummy, recur)
-    VALUE ary;
-    VALUE dummy;
-    int recur;
-{
-    long i, h;
-    VALUE n;
-
-    if (recur) {
-	return LONG2FIX(0);
-    }
-
-    h = RARRAY(ary)->len;
-    for (i=0; i<RARRAY(ary)->len; i++) {
-	h = (h << 1) | (h<0 ? 1 : 0);
-	n = rb_hash(RARRAY(ary)->ptr[i]);
-	h ^= NUM2LONG(n);
-    }
-    return LONG2FIX(h);
+    if (!RB_TYPE_P(ary2, T_ARRAY)) return Qfalse;
+    if (RARRAY_LEN(ary1) != RARRAY_LEN(ary2)) return Qfalse;
+    if (RARRAY_CONST_PTR(ary1) == RARRAY_CONST_PTR(ary2)) return Qtrue;
+    return rb_exec_recursive_paired(recursive_eql, ary1, ary2, ary2);
 }
 
 /*
  *  call-seq:
- *     array.hash   -> fixnum
+ *     ary.hash   -> integer
+ *
+ *  Compute a hash-code for this array.
+ *
+ *  Two arrays with the same content will have the same hash code (and will
+ *  compare using #eql?).
  *
- *  Compute a hash-code for this array. Two arrays with the same content
- *  will have the same hash code (and will compare using <code>eql?</code>).
+ *  See also Object#hash.
  */
 
 static VALUE
-rb_ary_hash(ary)
-    VALUE ary;
+rb_ary_hash(VALUE ary)
 {
-    return rb_exec_recursive(recursive_hash, ary, 0);
+    long i;
+    st_index_t h;
+    VALUE n;
+
+    h = rb_hash_start(RARRAY_LEN(ary));
+    h = rb_hash_uint(h, (st_index_t)rb_ary_hash);
+    for (i=0; i<RARRAY_LEN(ary); i++) {
+	n = rb_hash(RARRAY_AREF(ary, i));
+	h = rb_hash_uint(h, NUM2LONG(n));
+    }
+    h = rb_hash_end(h);
+    return LONG2FIX(h);
 }
 
 /*
  *  call-seq:
- *     array.include?(obj)   -> true or false
- *  
- *  Returns <code>true</code> if the given object is present in
- *  <i>self</i> (that is, if any object <code>==</code> <i>anObject</i>),
- *  <code>false</code> otherwise.
- *     
+ *     ary.include?(object)   -> true or false
+ *
+ *  Returns +true+ if the given +object+ is present in +self+ (that is, if any
+ *  element <code>==</code> +object+), otherwise returns +false+.
+ *
  *     a = [ "a", "b", "c" ]
  *     a.include?("b")   #=> true
  *     a.include?("z")   #=> false
  */
 
 VALUE
-rb_ary_includes(ary, item)
-    VALUE ary;
-    VALUE item;
+rb_ary_includes(VALUE ary, VALUE item)
 {
     long i;
-    
-    for (i=0; i<RARRAY(ary)->len; i++) {
-	if (rb_equal(RARRAY(ary)->ptr[i], item)) {
+    VALUE e;
+
+    for (i=0; i<RARRAY_LEN(ary); i++) {
+	e = RARRAY_AREF(ary, i);
+	switch (rb_equal_opt(e, item)) {
+	  case Qundef:
+	    if (rb_equal(e, item)) return Qtrue;
+	    break;
+	  case Qtrue:
 	    return Qtrue;
 	}
     }
@@ -2761,22 +3962,19 @@ rb_ary_includes(ary, item)
 }
 
 
-static VALUE recursive_cmp _((VALUE, VALUE, int));
 static VALUE
-recursive_cmp(ary1, ary2, recur)
-    VALUE ary1;
-    VALUE ary2;
-    int recur;
+recursive_cmp(VALUE ary1, VALUE ary2, int recur)
 {
     long i, len;
 
-    if (recur) return Qnil;
-    len = RARRAY(ary1)->len;
-    if (len > RARRAY(ary2)->len) {
-	len = RARRAY(ary2)->len;
+    if (recur) return Qundef;	/* Subtle! */
+    len = RARRAY_LEN(ary1);
+    if (len > RARRAY_LEN(ary2)) {
+	len = RARRAY_LEN(ary2);
     }
     for (i=0; i<len; i++) {
-	VALUE v = rb_funcall(rb_ary_elt(ary1, i), id_cmp, 1, rb_ary_elt(ary2, i));
+	VALUE e1 = rb_ary_elt(ary1, i), e2 = rb_ary_elt(ary2, i);
+	VALUE v = rb_funcallv(e1, id_cmp, 1, &e2);
 	if (v != INT2FIX(0)) {
 	    return v;
 	}
@@ -2784,265 +3982,495 @@ recursive_cmp(ary1, ary2, recur)
     return Qundef;
 }
 
-/* 
+/*
  *  call-seq:
- *     array <=> other_array   ->  -1, 0, +1
+ *     ary <=> other_ary   ->  -1, 0, +1 or nil
+ *
+ *  Comparison --- Returns an integer (+-1+, +0+, or <code>+1</code>) if this
+ *  array is less than, equal to, or greater than +other_ary+.
+ *
+ *  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.
+ *
+ *  If all the elements are equal, then the result is based on a comparison of
+ *  the array lengths. Thus, two arrays are "equal" according to Array#<=> if,
+ *  and only if, they have the same length and the value of each element is
+ *  equal to the value of the corresponding element in the other array.
+ *
+ *  +nil+ is returned if the +other_ary+ is not an array or if the comparison
+ *  of two elements returned +nil+.
  *
- *  Comparison---Returns an integer (-1, 0,
- *  or +1) if this array is less than, equal to, or greater than
- *  other_array.  Each object in each array is compared
- *  (using <=>). If any value isn't
- *  equal, then that inequality is the return value. If all the
- *  values found are equal, then the return is based on a
- *  comparison of the array lengths.  Thus, two arrays are
- *  ``equal'' according to <code>Array#<=></code> 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.
- *  
  *     [ "a", "a", "c" ]    <=> [ "a", "b", "c" ]   #=> -1
  *     [ 1, 2, 3, 4, 5, 6 ] <=> [ 1, 2 ]            #=> +1
+ *     [ 1, 2 ]             <=> [ 1, :two ]         #=> nil
  *
  */
 
 VALUE
-rb_ary_cmp(ary1, ary2)
-    VALUE ary1, ary2;
+rb_ary_cmp(VALUE ary1, VALUE ary2)
 {
     long len;
     VALUE v;
 
-    ary2 = to_ary(ary2);
+    ary2 = rb_check_array_type(ary2);
+    if (NIL_P(ary2)) return Qnil;
     if (ary1 == ary2) return INT2FIX(0);
-    v = rb_exec_recursive(recursive_cmp, ary1, ary2);
+    v = rb_exec_recursive_paired(recursive_cmp, ary1, ary2, ary2);
     if (v != Qundef) return v;
-    len = RARRAY(ary1)->len - RARRAY(ary2)->len;
+    len = RARRAY_LEN(ary1) - RARRAY_LEN(ary2);
     if (len == 0) return INT2FIX(0);
     if (len > 0) return INT2FIX(1);
     return INT2FIX(-1);
 }
 
 static VALUE
-ary_make_hash(ary1, ary2)
-    VALUE ary1, ary2;
+ary_add_hash(VALUE hash, VALUE ary)
 {
-    VALUE hash = rb_hash_new();
     long i;
 
-    for (i=0; i<RARRAY(ary1)->len; i++) {
-	rb_hash_aset(hash, RARRAY(ary1)->ptr[i], Qtrue);
+    for (i=0; i<RARRAY_LEN(ary); i++) {
+	VALUE elt = RARRAY_AREF(ary, i);
+	rb_hash_add_new_element(hash, elt, elt);
     }
-    if (ary2) {
-	for (i=0; i<RARRAY(ary2)->len; i++) {
-	    rb_hash_aset(hash, RARRAY(ary2)->ptr[i], Qtrue);
-	}
+    return hash;
+}
+
+static inline VALUE
+ary_tmp_hash_new(void)
+{
+    VALUE hash = rb_hash_new();
+
+    RBASIC_CLEAR_CLASS(hash);
+    return hash;
+}
+
+static VALUE
+ary_make_hash(VALUE ary)
+{
+    VALUE hash = ary_tmp_hash_new();
+    return ary_add_hash(hash, ary);
+}
+
+static VALUE
+ary_add_hash_by(VALUE hash, VALUE ary)
+{
+    long i;
+
+    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);
     }
     return hash;
 }
 
-/* 
+static VALUE
+ary_make_hash_by(VALUE ary)
+{
+    VALUE hash = ary_tmp_hash_new();
+    return ary_add_hash_by(hash, ary);
+}
+
+static inline void
+ary_recycle_hash(VALUE hash)
+{
+    if (RHASH(hash)->ntbl) {
+	st_table *tbl = RHASH(hash)->ntbl;
+	RHASH(hash)->ntbl = 0;
+	st_free_table(tbl);
+    }
+    RB_GC_GUARD(hash);
+}
+
+/*
  *  call-seq:
- *     array - other_array    -> an_array
+ *     ary - other_ary    -> new_ary
  *
- *  Array Difference---Returns a new array that is a copy of
- *  the original array, removing any items that also appear in
- *  other_array. (If you need set-like behavior, see the
- *  library class Set.)
+ *  Array Difference
+ *
+ *  Returns a new array that is a copy of the original array, removing any
+ *  items that also appear in +other_ary+. The order is preserved from the
+ *  original array.
+ *
+ *  It compares elements using their #hash and #eql? methods for efficiency.
  *
  *     [ 1, 1, 2, 2, 3, 3, 4, 5 ] - [ 1, 2, 4 ]  #=>  [ 3, 3, 5 ]
+ *
+ *  If you need set-like behavior, see the library class Set.
  */
 
 static VALUE
-rb_ary_diff(ary1, ary2)
-    VALUE ary1, ary2;
+rb_ary_diff(VALUE ary1, VALUE ary2)
 {
     VALUE ary3;
-    volatile VALUE hash;
+    VALUE hash;
     long i;
 
-    hash = ary_make_hash(to_ary(ary2), 0);
+    hash = ary_make_hash(to_ary(ary2));
     ary3 = rb_ary_new();
 
-    for (i=0; i<RARRAY(ary1)->len; i++) {
-	if (st_lookup(RHASH(hash)->tbl, RARRAY(ary1)->ptr[i], 0)) continue;
+    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));
     }
+    ary_recycle_hash(hash);
     return ary3;
 }
 
-/* 
+/*
  *  call-seq:
- *     array & other_array
+ *     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.
+ *
+ *  It compares elements using their #hash and #eql? methods for efficiency.
  *
- *  Set Intersection---Returns a new array
- *  containing elements common to the two arrays, with no duplicates.
+ *     [ 1, 1, 3, 5 ] & [ 3, 2, 1 ]                 #=> [ 1, 3 ]
+ *     [ 'a', 'b', 'b', 'z' ] & [ 'a', 'b', 'c' ]   #=> [ 'a', 'b' ]
  *
- *     [ 1, 1, 3, 5 ] & [ 1, 2, 3 ]   #=> [ 1, 3 ]
+ *  See also Array#uniq.
  */
 
 
 static VALUE
-rb_ary_and(ary1, ary2)
-    VALUE ary1, ary2;
+rb_ary_and(VALUE ary1, VALUE ary2)
 {
-    VALUE hash, ary3, v, vv;
+    VALUE hash, ary3, v;
+    st_table *table;
+    st_data_t vv;
     long i;
 
     ary2 = to_ary(ary2);
-    ary3 = rb_ary_new2(RARRAY(ary1)->len < RARRAY(ary2)->len ?
-	    RARRAY(ary1)->len : RARRAY(ary2)->len);
-    hash = ary_make_hash(ary2, 0);
-
-    for (i=0; i<RARRAY(ary1)->len; i++) {
-	v = vv = rb_ary_elt(ary1, i);
-	if (st_delete(RHASH(hash)->tbl, (st_data_t*)&vv, 0)) {
+    ary3 = rb_ary_new();
+    if (RARRAY_LEN(ary2) == 0) return ary3;
+    hash = ary_make_hash(ary2);
+    table = rb_hash_tbl_raw(hash);
+
+    for (i=0; i<RARRAY_LEN(ary1); i++) {
+	v = RARRAY_AREF(ary1, i);
+	vv = (st_data_t)v;
+	if (st_delete(table, &vv, 0)) {
 	    rb_ary_push(ary3, v);
 	}
     }
+    ary_recycle_hash(hash);
 
     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:
- *     array | other_array     ->  an_array
+ *     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.
+ *
+ *  It compares elements using their #hash and #eql? methods for efficiency.
  *
- *  Set Union---Returns a new array by joining this array with
- *  other_array, removing duplicates.
+ *     [ "a", "b", "c" ] | [ "c", "d", "a" ]    #=> [ "a", "b", "c", "d" ]
+ *     [ "c", "d", "a" ] | [ "a", "b", "c" ]    #=> [ "c", "d", "a", "b" ]
  *
- *     [ "a", "b", "c" ] | [ "c", "d", "a" ]
- *            #=> [ "a", "b", "c", "d" ]
+ *  See also Array#uniq.
  */
 
 static VALUE
-rb_ary_or(ary1, ary2)
-    VALUE ary1, ary2;
+rb_ary_or(VALUE ary1, VALUE ary2)
 {
     VALUE hash, ary3;
-    VALUE v, vv;
     long i;
 
     ary2 = to_ary(ary2);
-    ary3 = rb_ary_new2(RARRAY(ary1)->len+RARRAY(ary2)->len);
-    hash = ary_make_hash(ary1, ary2);
+    hash = ary_make_hash(ary1);
 
-    for (i=0; i<RARRAY(ary1)->len; i++) {
-	v = vv = rb_ary_elt(ary1, i);
-	if (st_delete(RHASH(hash)->tbl, (st_data_t*)&vv, 0)) {
-	    rb_ary_push(ary3, v);
+    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);
 	}
     }
-    for (i=0; i<RARRAY(ary2)->len; i++) {
-	v = vv = rb_ary_elt(ary2, i);
-	if (st_delete(RHASH(hash)->tbl, (st_data_t*)&vv, 0)) {
-	    rb_ary_push(ary3, v);
+    ary3 = rb_hash_values(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>.
+ *
+ *     a = %w(albatross dog horse)
+ *     a.max                                   #=> "horse"
+ *     a.max { |a, b| a.length <=> b.length }  #=> "albatross"
+ *
+ *  If the +n+ argument is given, maximum +n+ elements are returned
+ *  as an array.
+ *
+ *     a = %w[albatross dog horse]
+ *     a.max(2)                                  #=> ["horse", "dog"]
+ *     a.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;
+	   }
 	}
     }
-    return ary3;
+    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>.
+ *
+ *     a = %w(albatross dog horse)
+ *     a.min                                   #=> "albatross"
+ *     a.min { |a, b| a.length <=> b.length }  #=> "dog"
+ *
+ *  If the +n+ argument is given, minimum +n+ elements are returned
+ *  as an array.
+ *
+ *     a = %w[albatross dog horse]
+ *     a.min(2)                                  #=> ["albatross", "dog"]
+ *     a.min(2) {|a, b| a.length <=> b.length }  #=> ["dog", "horse"]
+ */
+static VALUE
+rb_ary_min(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, 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;
+}
+
+static int
+push_value(st_data_t key, st_data_t val, st_data_t ary)
+{
+    rb_ary_push((VALUE)ary, (VALUE)val);
+    return ST_CONTINUE;
 }
 
 /*
  *  call-seq:
- *     array.uniq! -> array or nil
- *  
- *  Removes duplicate elements from _self_.
- *  Returns <code>nil</code> if no changes are made (that is, no
- *  duplicates are found).
- *     
+ *     ary.uniq!                -> ary or nil
+ *     ary.uniq! { |item| ... } -> ary or nil
+ *
+ *  Removes duplicate elements from +self+.
+ *
+ *  If a block is given, it will use the return value of the block for
+ *  comparison.
+ *
+ *  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" ]
- *     a.uniq!   #=> ["a", "b", "c"]
+ *     a.uniq!   # => ["a", "b", "c"]
+ *
  *     b = [ "a", "b", "c" ]
- *     b.uniq!   #=> nil
+ *     b.uniq!   # => nil
+ *
+ *     c = [["student","sam"], ["student","george"], ["teacher","matz"]]
+ *     c.uniq! { |s| s.first } # => [["student", "sam"], ["teacher", "matz"]]
+ *
  */
 
 static VALUE
-rb_ary_uniq_bang(ary)
-    VALUE ary;
+rb_ary_uniq_bang(VALUE ary)
 {
-    VALUE hash, v, vv;
-    long i, j;
-
-    hash = ary_make_hash(ary, 0);
+    VALUE hash;
+    long hash_size;
 
-    if (RARRAY(ary)->len == RHASH(hash)->tbl->num_entries) {
+    rb_ary_modify_check(ary);
+    if (RARRAY_LEN(ary) <= 1)
+        return Qnil;
+    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;
     }
-    for (i=j=0; i<RARRAY(ary)->len; i++) {
-	v = vv = rb_ary_elt(ary, i);
-	if (st_delete(RHASH(hash)->tbl, (st_data_t*)&vv, 0)) {
-	    rb_ary_store(ary, j++, v);
-	}
+    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);
     }
-    RARRAY(ary)->len = j;
+    ary_resize_capa(ary, hash_size);
+    st_foreach(rb_hash_tbl_raw(hash), push_value, ary);
+    ary_recycle_hash(hash);
 
     return ary;
 }
 
 /*
  *  call-seq:
- *     array.uniq   -> an_array
- *  
- *  Returns a new array by removing duplicate values in <i>self</i>.
- *     
+ *     ary.uniq                -> new_ary
+ *     ary.uniq { |item| ... } -> new_ary
+ *
+ *  Returns a new array by removing duplicate values in +self+.
+ *
+ *  If a block is given, it will use the return value of the block for comparison.
+ *
+ *  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"]
+ *     a.uniq   # => ["a", "b", "c"]
+ *
+ *     b = [["student","sam"], ["student","george"], ["teacher","matz"]]
+ *     b.uniq { |s| s.first } # => [["student", "sam"], ["teacher", "matz"]]
+ *
  */
 
 static VALUE
-rb_ary_uniq(ary)
-    VALUE ary;
+rb_ary_uniq(VALUE ary)
 {
-    ary = rb_ary_dup(ary);
-    rb_ary_uniq_bang(ary);
-    return ary;
+    VALUE hash, uniq;
+
+    if (RARRAY_LEN(ary) <= 1)
+        return rb_ary_dup(ary);
+    if (rb_block_given_p()) {
+	hash = ary_make_hash_by(ary);
+	uniq = rb_hash_values(hash);
+    }
+    else {
+	hash = ary_make_hash(ary);
+	uniq = rb_hash_values(hash);
+    }
+    RBASIC_SET_CLASS(uniq, rb_obj_class(ary));
+    ary_recycle_hash(hash);
+
+    return uniq;
 }
 
-/* 
+/*
  *  call-seq:
- *     array.compact!    ->   array  or  nil
+ *     ary.compact!    -> ary  or  nil
+ *
+ *  Removes +nil+ elements from the array.
  *
- *  Removes +nil+ elements from array.
- *  Returns +nil+ if no changes were made.
+ *  Returns +nil+ if no changes were made, otherwise returns the array.
  *
  *     [ "a", nil, "b", nil, "c" ].compact! #=> [ "a", "b", "c" ]
  *     [ "a", "b", "c" ].compact!           #=> nil
  */
 
 static VALUE
-rb_ary_compact_bang(ary)
-    VALUE ary;
+rb_ary_compact_bang(VALUE ary)
 {
     VALUE *p, *t, *end;
+    long n;
 
     rb_ary_modify(ary);
-    p = t = RARRAY(ary)->ptr;
-    end = p + RARRAY(ary)->len;
-    
+    p = t = (VALUE *)RARRAY_CONST_PTR(ary); /* WB: no new reference */
+    end = p + RARRAY_LEN(ary);
+
     while (t < end) {
 	if (NIL_P(*t)) t++;
 	else *p++ = *t++;
     }
-    if (RARRAY(ary)->len == (p - RARRAY(ary)->ptr)) {
+    n = p - RARRAY_CONST_PTR(ary);
+    if (RARRAY_LEN(ary) == n) {
 	return Qnil;
     }
-    RARRAY(ary)->len = RARRAY(ary)->aux.capa = (p - RARRAY(ary)->ptr);
-    REALLOC_N(RARRAY(ary)->ptr, VALUE, RARRAY(ary)->len);
+    ary_resize_smaller(ary, n);
 
     return ary;
 }
 
 /*
  *  call-seq:
- *     array.compact     ->  an_array
+ *     ary.compact     -> new_ary
  *
- *  Returns a copy of _self_ with all +nil+ elements removed.
+ *  Returns a copy of +self+ with all +nil+ elements removed.
  *
  *     [ "a", nil, "b", nil, "c", nil ].compact
  *                       #=> [ "a", "b", "c" ]
  */
 
 static VALUE
-rb_ary_compact(ary)
-    VALUE ary;
+rb_ary_compact(VALUE ary)
 {
     ary = rb_ary_dup(ary);
     rb_ary_compact_bang(ary);
@@ -3051,72 +4479,50 @@ rb_ary_compact(ary)
 
 /*
  *  call-seq:
- *     array.nitems -> int
- *  
- *  Returns the number of non-<code>nil</code> elements in _self_.
+ *     ary.count                   -> int
+ *     ary.count(obj)              -> int
+ *     ary.count { |item| block }  -> int
  *
- *  May be zero.
- *     
- *     [ 1, nil, 3, nil, 5 ].nitems   #=> 3
- */
-
-static VALUE
-rb_ary_nitems(ary)
-    VALUE ary;
-{
-    long n = 0;
-    VALUE *p, *pend;
-
-    for (p = RARRAY(ary)->ptr, pend = p + RARRAY(ary)->len; p < pend; p++) {
-	if (!NIL_P(*p)) n++;
-    }
-    return LONG2NUM(n);
-}
-
-/*
- *  call-seq:
- *     array.count      -> int
- *     array.count(obj) -> int
- *     array.count { |item| block }  -> int
- *  
- *  Returns the number of elements.  If an argument is given, counts
- *  the number of elements which equals to <i>obj</i>.  If a block is
- *  given, counts the number of elements yielding a true value.
+ *  Returns the number of elements.
+ *
+ *  If an argument is given, counts the number of elements which equal +obj+
+ *  using <code>==</code>.
+ *
+ *  If a block is given, counts the number of elements for which the block
+ *  returns a true value.
  *
  *     ary = [1, 2, 4, 2]
- *     ary.count             # => 4
- *     ary.count(2)          # => 2
- *     ary.count{|x|x%2==0}  # => 3
+ *     ary.count                  #=> 4
+ *     ary.count(2)               #=> 2
+ *     ary.count { |x| x%2 == 0 } #=> 3
  *
  */
 
 static VALUE
-rb_ary_count(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_count(int argc, VALUE *argv, VALUE ary)
 {
-    long n = 0;
+    long i, n = 0;
 
     if (argc == 0) {
-	VALUE *p, *pend;
+	VALUE v;
 
 	if (!rb_block_given_p())
 	    return LONG2NUM(RARRAY_LEN(ary));
 
-	for (p = RARRAY_PTR(ary), pend = p + RARRAY_LEN(ary); p < pend; p++) {
-	    if (RTEST(rb_yield(*p))) n++;
+	for (i = 0; i < RARRAY_LEN(ary); i++) {
+	    v = RARRAY_AREF(ary, i);
+	    if (RTEST(rb_yield(v))) n++;
 	}
     }
     else {
-	VALUE obj, *p, *pend;
+	VALUE obj;
 
 	rb_scan_args(argc, argv, "1", &obj);
 	if (rb_block_given_p()) {
 	    rb_warn("given block not used");
 	}
-	for (p = RARRAY_PTR(ary), pend = p + RARRAY_LEN(ary); p < pend; p++) {
-	    if (rb_equal(*p, obj)) n++;
+	for (i = 0; i < RARRAY_LEN(ary); i++) {
+	    if (rb_equal(RARRAY_AREF(ary, i), obj)) n++;
 	}
     }
 
@@ -3124,10 +4530,7 @@ rb_ary_count(argc, argv, ary)
 }
 
 static VALUE
-flatten(ary, level, modified)
-    VALUE ary;
-    int level;
-    int *modified;
+flatten(VALUE ary, int level, int *modified)
 {
     long i = 0;
     VALUE stack, result, tmp, elt;
@@ -3141,13 +4544,17 @@ flatten(ary, level, modified)
     *modified = 0;
 
     while (1) {
-	while (i < RARRAY(ary)->len) {
-	    elt = RARRAY(ary)->ptr[i++];
+	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) || (level >= 0 && RARRAY(stack)->len / 2 >= level)) {
+	    if (NIL_P(tmp)) {
 		rb_ary_push(result, elt);
 	    }
 	    else {
@@ -3164,7 +4571,7 @@ flatten(ary, level, modified)
 		i = 0;
 	    }
 	}
-	if (RARRAY(stack)->len == 0) {
+	if (RARRAY_LEN(stack) == 0) {
 	    break;
 	}
 	id = (st_data_t)ary;
@@ -3176,20 +4583,22 @@ flatten(ary, level, modified)
 
     st_free_table(memo);
 
-    RBASIC(result)->klass = rb_class_of(ary);
+    RBASIC_SET_CLASS(result, rb_obj_class(ary));
     return result;
 }
 
 /*
  *  call-seq:
- *     array.flatten! -> array or nil
- *     array.flatten!(level) -> array or nil
- *  
- *  Flattens _self_ in place.
- *  Returns <code>nil</code> if no modifications were made (i.e.,
- *  <i>array</i> contains no subarrays.)  If the optional <i>level</i>
- *  argument determines the level of recursion to flatten.
- *     
+ *     ary.flatten!        -> ary or nil
+ *     ary.flatten!(level) -> ary or nil
+ *
+ *  Flattens +self+ in place.
+ *
+ *  Returns +nil+ if no modifications were made (i.e., the array contains no
+ *  subarrays.)
+ *
+ *  The optional +level+ argument determines the level of recursion to flatten.
+ *
  *     a = [ 1, 2, [3, [4, 5] ] ]
  *     a.flatten!   #=> [1, 2, 3, 4, 5]
  *     a.flatten!   #=> nil
@@ -3199,35 +4608,42 @@ flatten(ary, level, modified)
  */
 
 static VALUE
-rb_ary_flatten_bang(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_flatten_bang(int argc, VALUE *argv, VALUE ary)
 {
     int mod = 0, level = -1;
     VALUE result, lv;
 
     rb_scan_args(argc, argv, "01", &lv);
+    rb_ary_modify_check(ary);
     if (!NIL_P(lv)) level = NUM2INT(lv);
-    if (level == 0) return ary;
+    if (level == 0) return Qnil;
 
     result = flatten(ary, level, &mod);
-    if (mod == 0) return Qnil;
+    if (mod == 0) {
+	ary_discard(result);
+	return Qnil;
+    }
+    if (!(mod = ARY_EMBED_P(result))) rb_obj_freeze(result);
     rb_ary_replace(ary, result);
+    if (mod) ARY_SET_EMBED_LEN(result, 0);
 
     return ary;
 }
 
 /*
  *  call-seq:
- *     array.flatten -> an_array
- *     array.flatten(level) -> an_array
- *  
- *  Returns a new array that is a one-dimensional flattening of this
- *  array (recursively). That is, for every element that is an array,
- *  extract its elements into the new array.  If the optional
- *  <i>level</i> argument determines the level of recursion to flatten.
- *     
+ *     ary.flatten -> new_ary
+ *     ary.flatten(level) -> new_ary
+ *
+ *  Returns a new array that is a one-dimensional flattening of +self+
+ *  (recursively).
+ *
+ *  That is, for every element that is an array, extract its elements into
+ *  the new array.
+ *
+ *  The optional +level+ argument determines the level of recursion to
+ *  flatten.
+ *
  *     s = [ 1, 2, 3 ]           #=> [1, 2, 3]
  *     t = [ 4, 5, 6, [7, 8] ]   #=> [4, 5, 6, [7, 8]]
  *     a = [ s, t, 9, 10 ]       #=> [[1, 2, 3], [4, 5, 6, [7, 8]], 9, 10]
@@ -3237,117 +4653,276 @@ rb_ary_flatten_bang(argc, argv, ary)
  */
 
 static VALUE
-rb_ary_flatten(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_flatten(int argc, VALUE *argv, VALUE ary)
 {
     int mod = 0, level = -1;
     VALUE result, lv;
 
     rb_scan_args(argc, argv, "01", &lv);
     if (!NIL_P(lv)) level = NUM2INT(lv);
-    if (level == 0) return ary;
+    if (level == 0) return ary_make_shared_copy(ary);
 
     result = flatten(ary, level, &mod);
-    if (OBJ_TAINTED(ary)) OBJ_TAINT(result);
+    OBJ_INFECT(result, ary);
 
     return result;
 }
 
+#define OPTHASH_GIVEN_P(opts) \
+    (argc > 0 && !NIL_P((opts) = rb_check_hash_type(argv[argc-1])) && (--argc, 1))
+static ID id_random;
+
+#define RAND_UPTO(max) (long)rb_random_ulong_limited((randgen), (max)-1)
+
 /*
  *  call-seq:
- *     array.shuffle!        -> array or nil
- *  
- *  Shuffles elements in _self_ in place.
+ *     ary.shuffle!              -> ary
+ *     ary.shuffle!(random: rng) -> ary
+ *
+ *  Shuffles elements in +self+ in place.
+ *
+ *     a = [ 1, 2, 3 ]           #=> [1, 2, 3]
+ *     a.shuffle!                #=> [2, 3, 1]
+ *     a                         #=> [2, 3, 1]
+ *
+ *  The optional +rng+ argument will be used as the random number generator.
+ *
+ *     a.shuffle!(random: Random.new(1))  #=> [1, 3, 2]
  */
 
-
 static VALUE
-rb_ary_shuffle_bang(ary)
-    VALUE ary;
+rb_ary_shuffle_bang(int argc, VALUE *argv, VALUE ary)
 {
-    long i = RARRAY(ary)->len;
+    VALUE opts, randgen = rb_cRandom;
+    long i, len;
 
-    rb_ary_modify(ary);
-    while (i) {
-	long j = rb_genrand_real()*i;
-	VALUE tmp = RARRAY(ary)->ptr[--i];
-	RARRAY(ary)->ptr[i] = RARRAY(ary)->ptr[j];
-	RARRAY(ary)->ptr[j] = tmp;
+    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;
+	}
     }
+    rb_check_arity(argc, 0, 0);
+    rb_ary_modify(ary);
+    i = len = RARRAY_LEN(ary);
+    RARRAY_PTR_USE(ary, ptr, {
+	while (i) {
+	    long j = RAND_UPTO(i);
+	    VALUE tmp;
+	    if (len != RARRAY_LEN(ary) || ptr != RARRAY_CONST_PTR(ary)) {
+		rb_raise(rb_eRuntimeError, "modified during shuffle");
+	    }
+	    tmp = ptr[--i];
+	    ptr[i] = ptr[j];
+	    ptr[j] = tmp;
+	}
+    }); /* WB: no new reference */
     return ary;
 }
 
 
 /*
  *  call-seq:
- *     array.shuffle -> an_array
- *  
- *  Returns a new array with elements of this array shuffled.
- *     
+ *     ary.shuffle              -> new_ary
+ *     ary.shuffle(random: rng) -> new_ary
+ *
+ *  Returns a new array with elements of +self+ shuffled.
+ *
  *     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.
+ *
+ *     a.shuffle(random: Random.new(1))  #=> [1, 3, 2]
  */
 
 static VALUE
-rb_ary_shuffle(VALUE ary)
+rb_ary_shuffle(int argc, VALUE *argv, VALUE ary)
 {
     ary = rb_ary_dup(ary);
-    rb_ary_shuffle_bang(ary);
+    rb_ary_shuffle_bang(argc, argv, ary);
     return ary;
 }
 
 
 /*
  *  call-seq:
- *     array.choice        -> obj
- *  
- *  Choose a random element from an array.
+ *     ary.sample                  -> obj
+ *     ary.sample(random: rng)     -> obj
+ *     ary.sample(n)               -> new_ary
+ *     ary.sample(n, random: rng)  -> new_ary
+ *
+ *  Choose a random element or +n+ random elements from the array.
+ *
+ *  The elements are chosen by using random and unique indices into the array
+ *  in order to ensure that an element doesn't repeat itself unless the array
+ *  already contained duplicate elements.
+ *
+ *  If the array is empty the first form returns +nil+ and the second form
+ *  returns an empty array.
+ *
+ *  The optional +rng+ argument will be used as the random number generator.
+ *
+ *     a = [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 ]
+ *     a.sample         #=> 7
+ *     a.sample(4)      #=> [6, 4, 2, 5]
  */
 
 
 static VALUE
-rb_ary_choice(ary)
-    VALUE ary;
+rb_ary_sample(int argc, VALUE *argv, VALUE ary)
 {
-    long i, j;
+    VALUE nv, result;
+    VALUE opts, randgen = rb_cRandom;
+    long n, len, i, j, k, idx[10];
+    long rnds[numberof(idx)];
+
+    if (OPTHASH_GIVEN_P(opts)) {
+	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;
+	}
+    }
+    len = RARRAY_LEN(ary);
+    if (argc == 0) {
+	if (len < 2)
+	    i = 0;
+	else
+	    i = RAND_UPTO(len);
+
+	return rb_ary_elt(ary, i);
+    }
+    rb_scan_args(argc, argv, "1", &nv);
+    n = NUM2LONG(nv);
+    if (n < 0) rb_raise(rb_eArgError, "negative sample number");
+    if (n > len) n = len;
+    if (n <= numberof(idx)) {
+	for (i = 0; i < n; ++i) {
+	    rnds[i] = RAND_UPTO(len - i);
+	}
+    }
+    k = len;
+    len = RARRAY_LEN(ary);
+    if (len < k && n <= numberof(idx)) {
+	for (i = 0; i < n; ++i) {
+	    if (rnds[i] >= len) return rb_ary_new_capa(0);
+	}
+    }
+    if (n > len) n = len;
+    switch (n) {
+      case 0:
+	return rb_ary_new_capa(0);
+      case 1:
+	i = rnds[0];
+	return rb_ary_new_from_values(1, &RARRAY_AREF(ary, i));
+      case 2:
+	i = rnds[0];
+	j = rnds[1];
+	if (j >= i) j++;
+	return rb_ary_new_from_args(2, RARRAY_AREF(ary, i), RARRAY_AREF(ary, j));
+      case 3:
+	i = rnds[0];
+	j = rnds[1];
+	k = rnds[2];
+	{
+	    long l = j, g = i;
+	    if (j >= i) l = i, g = ++j;
+	    if (k >= l && (++k >= g)) ++k;
+	}
+	return rb_ary_new_from_args(3, RARRAY_AREF(ary, i), RARRAY_AREF(ary, j), RARRAY_AREF(ary, k));
+    }
+    if (n <= numberof(idx)) {
+	long sorted[numberof(idx)];
+	sorted[0] = idx[0] = rnds[0];
+	for (i=1; i<n; i++) {
+	    k = rnds[i];
+	    for (j = 0; j < i; ++j) {
+		if (k < sorted[j]) break;
+		++k;
+	    }
+	    memmove(&sorted[j+1], &sorted[j], sizeof(sorted[0])*(i-j));
+	    sorted[j] = idx[i] = k;
+	}
+	result = rb_ary_new_capa(n);
+	RARRAY_PTR_USE(result, ptr_result, {
+	    for (i=0; i<n; i++) {
+		ptr_result[i] = RARRAY_AREF(ary, idx[i]);
+	    }
+	});
+    }
+    else {
+	result = rb_ary_dup(ary);
+	RBASIC_CLEAR_CLASS(result);
+	RB_GC_GUARD(ary);
+	RARRAY_PTR_USE(result, ptr_result, {
+	    for (i=0; i<n; i++) {
+		j = RAND_UPTO(len-i) + i;
+		nv = ptr_result[j];
+		ptr_result[j] = ptr_result[i];
+		ptr_result[i] = nv;
+	    }
+	});
+	RBASIC_SET_CLASS_RAW(result, rb_cArray);
+    }
+    ARY_SET_LEN(result, n);
 
-    i = RARRAY(ary)->len;
-    if (i == 0) return Qnil;
-    j = rb_genrand_real()*i;
-    return RARRAY(ary)->ptr[j];
+    return result;
 }
 
+static VALUE
+rb_ary_cycle_size(VALUE self, VALUE args, VALUE eobj)
+{
+    long mul;
+    VALUE n = Qnil;
+    if (args && (RARRAY_LEN(args) > 0)) {
+	n = RARRAY_AREF(args, 0);
+    }
+    if (RARRAY_LEN(self) == 0) return INT2FIX(0);
+    if (n == Qnil) return DBL2NUM(INFINITY);
+    mul = NUM2LONG(n);
+    if (mul <= 0) return INT2FIX(0);
+    n = LONG2FIX(mul);
+    return rb_funcallv(rb_ary_length(self), '*', 1, &n);
+}
 
 /*
  *  call-seq:
- *     ary.cycle {|obj| block }
- *     ary.cycle(n) {|obj| block }
- *  
- *  Calls <i>block</i> for each element repeatedly _n_ times or
- *  forever if none or nil is given.  If a non-positive number is
- *  given or the array is empty, does nothing.  Returns nil if the
- *  loop has finished without getting interrupted.
- *     
+ *     ary.cycle(n=nil) { |obj| block }  -> nil
+ *     ary.cycle(n=nil)                  -> Enumerator
+ *
+ *  Calls the given block for each element +n+ times or forever if +nil+ is
+ *  given.
+ *
+ *  Does nothing if a non-positive number is given or the array is empty.
+ *
+ *  Returns +nil+ if the loop has finished without getting interrupted.
+ *
+ *  If no block is given, an Enumerator is returned instead.
+ *
  *     a = ["a", "b", "c"]
- *     a.cycle {|x| puts x }  # print, a, b, c, a, b, c,.. forever.
- *     a.cycle(2) {|x| puts x }  # print, a, b, c, a, b, c.
- *     
+ *     a.cycle { |x| puts x }     # print, a, b, c, a, b, c,.. forever.
+ *     a.cycle(2) { |x| puts x }  # print, a, b, c, a, b, c.
+ *
  */
 
 static VALUE
-rb_ary_cycle(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_cycle(int argc, VALUE *argv, VALUE ary)
 {
     long n, i;
     VALUE nv = Qnil;
 
     rb_scan_args(argc, argv, "01", &nv);
 
-    RETURN_ENUMERATOR(ary, argc, argv);
+    RETURN_SIZED_ENUMERATOR(ary, argc, argv, rb_ary_cycle_size);
     if (NIL_P(nv)) {
         n = -1;
     }
@@ -3356,160 +4931,233 @@ rb_ary_cycle(argc, argv, ary)
         if (n <= 0) return Qnil;
     }
 
-    while (RARRAY(ary)->len > 0 && (n < 0 || 0 < n--)) {
-        for (i=0; i<RARRAY(ary)->len; i++) {
-            rb_yield(RARRAY(ary)->ptr[i]);
+    while (RARRAY_LEN(ary) > 0 && (n < 0 || 0 < n--)) {
+        for (i=0; i<RARRAY_LEN(ary); i++) {
+            rb_yield(RARRAY_AREF(ary, i));
         }
     }
     return Qnil;
 }
 
 #define tmpbuf(n, size) rb_str_tmp_new((n)*(size))
+#define tmpbuf_discard(s) (rb_str_resize((s), 0L), RBASIC_SET_CLASS_RAW(s, rb_cString))
+#define tmpary(n) rb_ary_tmp_new(n)
+#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;
+}
 
 /*
- * Recursively compute permutations of r elements of the set [0..n-1].
- * When we have a complete permutation of array indexes, copy the values
- * at those indexes into a new array and yield that array. 
+ * Compute permutations of +r+ elements of the set <code>[0..n-1]</code>.
  *
- * n: the size of the set 
+ * When we have a complete permutation of array indices, copy the values
+ * at those indices 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(n, r, p, index, used, values)
-    long n, r, *p, index;
-    int *used;
-    VALUE values;
+permute0(const long n, const long r, long *const p, char *const used, const VALUE values)
 {
-    long i,j;
-    for (i = 0; i < n; i++) {
-	if (used[i] == 0) {
+    long i = 0, index = 0;
+
+    for (;;) {
+	const char *const unused = memchr(&used[i], 0, n-i);
+	if (!unused) {
+	    if (!index) break;
+	    i = p[--index];                /* pop index */
+	    used[i++] = 0;                 /* index unused */
+	}
+	else {
+	    i = unused - used;
 	    p[index] = i;
+	    used[i] = 1;                   /* mark index used */
+	    ++index;
 	    if (index < r-1) {             /* if not done yet */
-		used[i] = 1;               /* mark index used */
-		permute0(n, r, p, index+1, /* recurse */
-			 used, values);  
-		used[i] = 0;               /* index unused */
+		p[index] = i = 0;
+		continue;
 	    }
-	    else {
-		/* We have a complete permutation of array indexes */
-		/* Build a ruby array of the corresponding values */
-		/* And yield it to the associated block */
-		VALUE result = rb_ary_new2(r);
-		VALUE *result_array = RARRAY(result)->ptr;
-		const VALUE *values_array = RARRAY(values)->ptr;
-
-		for (j = 0; j < r; j++) result_array[j] = values_array[p[j]];
-		RARRAY(result)->len = r;
-		rb_yield(result);
+	    for (i = 0; i < n; ++i) {
+		if (used[i]) continue;
+		p[index] = i;
+		if (!yield_indexed_values(values, r, p)) {
+		    rb_raise(rb_eRuntimeError, "permute reentered");
+		}
 	    }
+	    i = p[--index];                /* pop index */
+	    used[i] = 0;                   /* index unused */
+	    p[index] = ++i;
 	}
     }
 }
 
 /*
+ * Returns the product of from, from-1, ..., from - how_many + 1.
+ * http://en.wikipedia.org/wiki/Pochhammer_symbol
+ */
+static VALUE
+descending_factorial(long from, long how_many)
+{
+    VALUE cnt = LONG2FIX(how_many >= 0);
+    while (how_many-- > 0) {
+	VALUE v = LONG2FIX(from--);
+	cnt = rb_funcallv(cnt, '*', 1, &v);
+    }
+    return cnt;
+}
+
+static VALUE
+binomial_coefficient(long comb, long size)
+{
+    VALUE r, v;
+    if (comb > size-comb) {
+	comb = size-comb;
+    }
+    if (comb < 0) {
+	return LONG2FIX(0);
+    }
+    r = descending_factorial(size, comb);
+    v = descending_factorial(comb, comb);
+    return rb_funcallv(r, id_div, 1, &v);
+}
+
+static VALUE
+rb_ary_permutation_size(VALUE ary, VALUE args, VALUE eobj)
+{
+    long n = RARRAY_LEN(ary);
+    long k = (args && (RARRAY_LEN(args) > 0)) ? NUM2LONG(RARRAY_AREF(args, 0)) : n;
+
+    return descending_factorial(n, k);
+}
+
+/*
  *  call-seq:
- *     ary.permutation { |p| block }          -> array
- *     ary.permutation                        -> enumerator
- *     ary.permutation(n) { |p| block }       -> array
- *     ary.permutation(n)                     -> enumerator
- *  
- * When invoked with a block, yield all permutations of length <i>n</i>
- * of the elements of <i>ary</i>, then return the array itself.
- * If <i>n</i> is not specified, yield all permutations of all elements.
- * The implementation makes no guarantees about the order in which 
- * the permutations are yielded.
+ *     ary.permutation { |p| block }          -> ary
+ *     ary.permutation                        -> Enumerator
+ *     ary.permutation(n) { |p| block }       -> ary
+ *     ary.permutation(n)                     -> Enumerator
+ *
+ * When invoked with a block, yield all permutations of length +n+ of the
+ * elements of the array, then return the array itself.
+ *
+ * If +n+ is not specified, yield all permutations of all elements.
+ *
+ * The implementation makes no guarantees about the order in which the
+ * permutations are yielded.
+ *
+ * If no block is given, an Enumerator is returned instead.
  *
- * When invoked without a block, return an enumerator object instead.
- * 
  * Examples:
  *
- *     a = [1, 2, 3]
- *     a.permutation.to_a     #=> [[1,2,3],[1,3,2],[2,1,3],[2,3,1],[3,1,2],[3,2,1]]
- *     a.permutation(1).to_a  #=> [[1],[2],[3]]
- *     a.permutation(2).to_a  #=> [[1,2],[1,3],[2,1],[2,3],[3,1],[3,2]]
- *     a.permutation(3).to_a  #=> [[1,2,3],[1,3,2],[2,1,3],[2,3,1],[3,1,2],[3,2,1]]
- *     a.permutation(0).to_a  #=> [[]] # one permutation of length 0
- *     a.permutation(4).to_a  #=> []   # no permutations of length 4
+ *   a = [1, 2, 3]
+ *   a.permutation.to_a    #=> [[1,2,3],[1,3,2],[2,1,3],[2,3,1],[3,1,2],[3,2,1]]
+ *   a.permutation(1).to_a #=> [[1],[2],[3]]
+ *   a.permutation(2).to_a #=> [[1,2],[1,3],[2,1],[2,3],[3,1],[3,2]]
+ *   a.permutation(3).to_a #=> [[1,2,3],[1,3,2],[2,1,3],[2,3,1],[3,1,2],[3,2,1]]
+ *   a.permutation(0).to_a #=> [[]] # one permutation of length 0
+ *   a.permutation(4).to_a #=> []   # no permutations of length 4
  */
 
 static VALUE
-rb_ary_permutation(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_permutation(int argc, VALUE *argv, VALUE ary)
 {
     VALUE num;
     long r, n, i;
 
-    n = RARRAY(ary)->len;                  /* Array length */
-    RETURN_ENUMERATOR(ary, argc, argv);   /* Return enumerator if no block */
+    n = RARRAY_LEN(ary);                  /* Array length */
+    RETURN_SIZED_ENUMERATOR(ary, argc, argv, rb_ary_permutation_size);   /* Return enumerator if no block */
     rb_scan_args(argc, argv, "01", &num);
     r = NIL_P(num) ? n : NUM2LONG(num);   /* Permutation size from argument */
 
-    if (r < 0 || n < r) { 
+    if (r < 0 || n < r) {
 	/* no permutations: yield nothing */
     }
     else if (r == 0) { /* exactly one permutation: the zero-length array */
 	rb_yield(rb_ary_new2(0));
     }
     else if (r == 1) { /* this is a special, easy case */
-	for (i = 0; i < RARRAY(ary)->len; i++) {
-	    rb_yield(rb_ary_new3(1, RARRAY(ary)->ptr[i]));
+	for (i = 0; i < RARRAY_LEN(ary); i++) {
+	    rb_yield(rb_ary_new3(1, RARRAY_AREF(ary, i)));
 	}
     }
     else {             /* this is the general case */
-	volatile VALUE t0 = tmpbuf(n,sizeof(long));
-	long *p = (long*)RSTRING(t0)->ptr;
-	volatile VALUE t1 = tmpbuf(n,sizeof(int));
-	int *used = (int*)RSTRING(t1)->ptr;
-	VALUE ary0 = ary_make_shared(ary); /* private defensive copy of ary */
+	volatile VALUE t0;
+	long *p = ALLOCV_N(long, t0, r+roomof(n, sizeof(long)));
+	char *used = (char*)(p + r);
+	VALUE ary0 = ary_make_shared_copy(ary); /* private defensive copy of ary */
+	RBASIC_CLEAR_CLASS(ary0);
 
-	for (i = 0; i < n; i++) used[i] = 0; /* initialize array */
+	MEMZERO(used, char, n); /* initialize array */
 
-	permute0(n, r, p, 0, used, ary0); /* compute and yield permutations */
-	RB_GC_GUARD(t0);
-	RB_GC_GUARD(t1);
+	permute0(n, r, p, used, ary0); /* compute and yield permutations */
+	ALLOCV_END(t0);
+	RBASIC_SET_CLASS_RAW(ary0, rb_cArray);
     }
     return ary;
 }
 
-static long
-combi_len(n, k)
-    long n, k;
+static void
+combinate0(const long len, const long n, long *const stack, const VALUE values)
 {
-    long i, val = 1;
+    long lev = 0;
 
-    if (k*2 > n) k = n-k;
-    if (k == 0) return 1;
-    if (k < 0) return 0;
-    val = 1;
-    for (i=1; i <= k; i++,n--) {
-	long m = val;
-	val *= n;
-	if (val < m) {
-	    rb_raise(rb_eRangeError, "too big for combination");
+    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");
 	}
-	val /= i;
+	do {
+	    if (lev == 0) return;
+	    stack[lev--]++;
+	} while (stack[lev+1]+n == len+lev+1);
     }
-    return val;
+}
+
+static VALUE
+rb_ary_combination_size(VALUE ary, VALUE args, VALUE eobj)
+{
+    long n = RARRAY_LEN(ary);
+    long k = NUM2LONG(RARRAY_AREF(args, 0));
+
+    return binomial_coefficient(k, n);
 }
 
 /*
  *  call-seq:
  *     ary.combination(n) { |c| block }    -> ary
- *     ary.combination(n)                  -> enumerator
- *  
- * When invoked with a block, yields all combinations of length <i>n</i> 
- * of elements from <i>ary</i> and then returns <i>ary</i> itself.
- * The implementation makes no guarantees about the order in which 
- * the combinations are yielded.
- *
- * When invoked without a block, returns an enumerator object instead.
- *     
+ *     ary.combination(n)                  -> Enumerator
+ *
+ * When invoked with a block, yields all combinations of length +n+ of elements
+ * from the array and then returns the array itself.
+ *
+ * The implementation makes no guarantees about the order in which the
+ * combinations are yielded.
+ *
+ * If no block is given, an Enumerator is returned instead.
+ *
  * Examples:
  *
  *     a = [1, 2, 3, 4]
@@ -3519,19 +5167,17 @@ combi_len(n, k)
  *     a.combination(4).to_a  #=> [[1,2,3,4]]
  *     a.combination(0).to_a  #=> [[]] # one combination of length 0
  *     a.combination(5).to_a  #=> []   # no combinations of length 5
- *     
+ *
  */
 
 static VALUE
-rb_ary_combination(ary, num)
-    VALUE ary;
-    VALUE num;
+rb_ary_combination(VALUE ary, VALUE num)
 {
-    long n, i, len;
+    long i, n, len;
 
     n = NUM2LONG(num);
-    RETURN_ENUMERATOR(ary, 1, &num);
-    len = RARRAY(ary)->len;
+    RETURN_SIZED_ENUMERATOR(ary, 1, &num, rb_ary_combination_size);
+    len = RARRAY_LEN(ary);
     if (n < 0 || len < n) {
 	/* yield nothing */
     }
@@ -3540,88 +5186,292 @@ rb_ary_combination(ary, num)
     }
     else if (n == 1) {
 	for (i = 0; i < len; i++) {
-	    rb_yield(rb_ary_new3(1, RARRAY(ary)->ptr[i]));
+	    rb_yield(rb_ary_new3(1, RARRAY_AREF(ary, i)));
 	}
     }
     else {
-	volatile VALUE t0 = tmpbuf(n+1, sizeof(long));
-	long *stack = (long*)RSTRING(t0)->ptr;
-	long nlen = combi_len(len, n);
-	volatile VALUE cc = rb_ary_new2(n);
-	VALUE *chosen = RARRAY(cc)->ptr;
-	long lev = 0;
-
-	RBASIC(cc)->klass = 0;
-	MEMZERO(stack, long, n);
-	stack[0] = -1;
-	for (i = 0; i < nlen; i++) {
-	    chosen[lev] = RARRAY(ary)->ptr[stack[lev+1]];
-	    for (lev++; lev < n; lev++) {
-		chosen[lev] = RARRAY(ary)->ptr[stack[lev+1] = stack[lev]+1];
+	VALUE ary0 = ary_make_shared_copy(ary); /* private defensive copy of ary */
+	volatile VALUE t0;
+	long *stack = ALLOCV_N(long, t0, n+1);
+
+	RBASIC_CLEAR_CLASS(ary0);
+	combinate0(len, n, stack, ary0);
+	ALLOCV_END(t0);
+	RBASIC_SET_CLASS_RAW(ary0, rb_cArray);
+    }
+    return ary;
+}
+
+/*
+ * 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.
+ *
+ * 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
+ * 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)
+{
+    long i = 0, index = 0;
+
+    p[index] = i;
+    for (;;) {
+	if (++index < r-1) {
+	    p[index] = i = 0;
+	    continue;
+	}
+	for (i = 0; i < n; ++i) {
+	    p[index] = i;
+	    if (!yield_indexed_values(values, r, p)) {
+		rb_raise(rb_eRuntimeError, "repeated permute reentered");
 	    }
-	    rb_yield(rb_ary_new4(n, chosen));
-	    do {
-		stack[lev--]++;
-	    } while (lev && (stack[lev+1]+n == len+lev+1));
 	}
+	do {
+	    if (index <= 0) return;
+	} while ((i = ++p[--index]) >= n);
+    }
+}
+
+static VALUE
+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);
+    }
+
+    v = LONG2NUM(k);
+    return rb_funcallv(LONG2NUM(n), id_power, 1, &v);
+}
+
+/*
+ *  call-seq:
+ *     ary.repeated_permutation(n) { |p| block } -> ary
+ *     ary.repeated_permutation(n)               -> Enumerator
+ *
+ * When invoked with a block, yield all repeated permutations of length +n+ of
+ * the elements of the array, then return the array itself.
+ *
+ * The implementation makes no guarantees about the order in which the repeated
+ * permutations are yielded.
+ *
+ * If no block is given, an Enumerator is returned instead.
+ *
+ * Examples:
+ *
+ *     a = [1, 2]
+ *     a.repeated_permutation(1).to_a  #=> [[1], [2]]
+ *     a.repeated_permutation(2).to_a  #=> [[1,1],[1,2],[2,1],[2,2]]
+ *     a.repeated_permutation(3).to_a  #=> [[1,1,1],[1,1,2],[1,2,1],[1,2,2],
+ *                                     #    [2,1,1],[2,1,2],[2,2,1],[2,2,2]]
+ *     a.repeated_permutation(0).to_a  #=> [[]] # one permutation of length 0
+ */
+
+static VALUE
+rb_ary_repeated_permutation(VALUE ary, VALUE num)
+{
+    long r, n, i;
+
+    n = RARRAY_LEN(ary);                  /* Array length */
+    RETURN_SIZED_ENUMERATOR(ary, 1, &num, rb_ary_repeated_permutation_size);      /* Return Enumerator if no block */
+    r = NUM2LONG(num);                    /* Permutation size from argument */
+
+    if (r < 0) {
+	/* no permutations: yield nothing */
+    }
+    else if (r == 0) { /* exactly one permutation: the zero-length array */
+	rb_yield(rb_ary_new2(0));
+    }
+    else if (r == 1) { /* this is a special, easy case */
+	for (i = 0; i < RARRAY_LEN(ary); i++) {
+	    rb_yield(rb_ary_new3(1, RARRAY_AREF(ary, i)));
+	}
+    }
+    else {             /* this is the general case */
+	volatile VALUE t0;
+	long *p = ALLOCV_N(long, t0, r);
+	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);
+	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)
+{
+    long i = 0, index = 0;
+
+    p[index] = i;
+    for (;;) {
+	if (++index < r-1) {
+	    p[index] = i;
+	    continue;
+	}
+	for (; i < n; ++i) {
+	    p[index] = i;
+	    if (!yield_indexed_values(values, r, p)) {
+		rb_raise(rb_eRuntimeError, "repeated combination reentered");
+	    }
+	}
+	do {
+	    if (index <= 0) return;
+	} while ((i = ++p[--index]) >= n);
+    }
+}
+
+static VALUE
+rb_ary_repeated_combination_size(VALUE ary, VALUE args, VALUE eobj)
+{
+    long n = RARRAY_LEN(ary);
+    long k = NUM2LONG(RARRAY_AREF(args, 0));
+    if (k == 0) {
+	return LONG2FIX(1);
+    }
+    return binomial_coefficient(k, n + k - 1);
+}
+
 /*
  *  call-seq:
- *     ary.product(other_ary, ...)
- *  
+ *     ary.repeated_combination(n) { |c| block } -> ary
+ *     ary.repeated_combination(n)               -> Enumerator
+ *
+ * When invoked with a block, yields all repeated combinations of length +n+ of
+ * elements from the array and then returns the array itself.
+ *
+ * The implementation makes no guarantees about the order in which the repeated
+ * combinations are yielded.
+ *
+ * If no block is given, an Enumerator is returned instead.
+ *
+ * Examples:
+ *
+ *   a = [1, 2, 3]
+ *   a.repeated_combination(1).to_a  #=> [[1], [2], [3]]
+ *   a.repeated_combination(2).to_a  #=> [[1,1],[1,2],[1,3],[2,2],[2,3],[3,3]]
+ *   a.repeated_combination(3).to_a  #=> [[1,1,1],[1,1,2],[1,1,3],[1,2,2],[1,2,3],
+ *                                   #    [1,3,3],[2,2,2],[2,2,3],[2,3,3],[3,3,3]]
+ *   a.repeated_combination(4).to_a  #=> [[1,1,1,1],[1,1,1,2],[1,1,1,3],[1,1,2,2],[1,1,2,3],
+ *                                   #    [1,1,3,3],[1,2,2,2],[1,2,2,3],[1,2,3,3],[1,3,3,3],
+ *                                   #    [2,2,2,2],[2,2,2,3],[2,2,3,3],[2,3,3,3],[3,3,3,3]]
+ *   a.repeated_combination(0).to_a  #=> [[]] # one combination of length 0
+ *
+ */
+
+static VALUE
+rb_ary_repeated_combination(VALUE ary, VALUE num)
+{
+    long n, i, len;
+
+    n = NUM2LONG(num);                 /* Combination size from argument */
+    RETURN_SIZED_ENUMERATOR(ary, 1, &num, rb_ary_repeated_combination_size);   /* Return enumerator if no block */
+    len = RARRAY_LEN(ary);
+    if (n < 0) {
+	/* yield nothing */
+    }
+    else if (n == 0) {
+	rb_yield(rb_ary_new2(0));
+    }
+    else if (n == 1) {
+	for (i = 0; i < len; i++) {
+	    rb_yield(rb_ary_new3(1, RARRAY_AREF(ary, i)));
+	}
+    }
+    else if (len == 0) {
+	/* yield nothing */
+    }
+    else {
+	volatile VALUE t0;
+	long *p = ALLOCV_N(long, t0, n);
+	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);
+	RBASIC_SET_CLASS_RAW(ary0, rb_cArray);
+    }
+    return ary;
+}
+
+/*
+ *  call-seq:
+ *     ary.product(other_ary, ...)                -> new_ary
+ *     ary.product(other_ary, ...) { |p| block }  -> ary
+ *
  *  Returns an array of all combinations of elements from all arrays.
- *  The length of the returned array is the product of the length
- *  of ary and the argument arrays
- *     
- *     [1,2,3].product([4,5])     # => [[1,4],[1,5],[2,4],[2,5],[3,4],[3,5]]
- *     [1,2].product([1,2])       # => [[1,1],[1,2],[2,1],[2,2]]
- *     [1,2].product([3,4],[5,6]) # => [[1,3,5],[1,3,6],[1,4,5],[1,4,6],
+ *
+ *  The length of the returned array is the product of the length of +self+ and
+ *  the argument arrays.
+ *
+ *  If given a block, #product will yield all combinations and return +self+
+ *  instead.
+ *
+ *     [1,2,3].product([4,5])     #=> [[1,4],[1,5],[2,4],[2,5],[3,4],[3,5]]
+ *     [1,2].product([1,2])       #=> [[1,1],[1,2],[2,1],[2,2]]
+ *     [1,2].product([3,4],[5,6]) #=> [[1,3,5],[1,3,6],[1,4,5],[1,4,6],
  *                                #     [2,3,5],[2,3,6],[2,4,5],[2,4,6]]
- *     [1,2].product()            # => [[1],[2]]
- *     [1,2].product([])          # => []
+ *     [1,2].product()            #=> [[1],[2]]
+ *     [1,2].product([])          #=> []
  */
 
 static VALUE
-rb_ary_product(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
+rb_ary_product(int argc, VALUE *argv, VALUE ary)
 {
     int n = argc+1;    /* How many arrays we're operating on */
-    volatile VALUE t0 = tmpbuf(n, sizeof(VALUE));
+    volatile VALUE t0 = tmpary(n);
     volatile VALUE t1 = tmpbuf(n, sizeof(int));
-    VALUE *arrays = (VALUE*)RSTRING(t0)->ptr; /* The arrays we're computing the product of */
-    int *counters = (int*)RSTRING(t1)->ptr; /* The current position in each one */
-    VALUE result;      /* The array we'll be returning */
+    VALUE *arrays = RARRAY_PTR(t0); /* The arrays we're computing the product of */
+    int *counters = (int*)RSTRING_PTR(t1); /* The current position in each one */
+    VALUE result = Qnil;      /* The array we'll be returning, when no block given */
     long i,j;
     long resultlen = 1;
 
-    RBASIC(t0)->klass = 0;
-    RBASIC(t1)->klass = 0;
+    RBASIC_CLEAR_CLASS(t0);
+    RBASIC_CLEAR_CLASS(t1);
 
     /* initialize the arrays of arrays */
+    ARY_SET_LEN(t0, n);
     arrays[0] = ary;
+    for (i = 1; i < n; i++) arrays[i] = Qnil;
     for (i = 1; i < n; i++) arrays[i] = to_ary(argv[i-1]);
-    
+
     /* initialize the counters for the arrays */
     for (i = 0; i < n; i++) counters[i] = 0;
 
-    /* Compute the length of the result array; return [] if any is empty */
-    for (i = 0; i < n; i++) {
-	long k = RARRAY(arrays[i])->len, l = resultlen;
-	if (k == 0) return rb_ary_new2(0);
-	resultlen *= k;
-	if (resultlen < k || resultlen < l || resultlen / k != l) {
-	    rb_raise(rb_eRangeError, "too big to product");
+    /* Otherwise, allocate and fill in an array of results */
+    if (rb_block_given_p()) {
+	/* Make defensive copies of arrays; exit if any is empty */
+	for (i = 0; i < n; i++) {
+	    if (RARRAY_LEN(arrays[i]) == 0) goto done;
+	    arrays[i] = ary_make_shared_copy(arrays[i]);
 	}
     }
-
-    /* Otherwise, allocate and fill in an array of results */
-    result = rb_ary_new2(resultlen);
-    for (i = 0; i < resultlen; i++) {
+    else {
+	/* Compute the length of the result array; return [] if any is empty */
+	for (i = 0; i < n; i++) {
+	    long k = RARRAY_LEN(arrays[i]);
+	    if (k == 0) {
+		result = rb_ary_new2(0);
+		goto done;
+	    }
+            if (MUL_OVERFLOW_LONG_P(resultlen, k))
+		rb_raise(rb_eRangeError, "too big to product");
+	    resultlen *= k;
+	}
+	result = rb_ary_new2(resultlen);
+    }
+    for (;;) {
 	int m;
 	/* fill in one subarray */
 	VALUE subarray = rb_ary_new2(n);
@@ -3630,7 +5480,19 @@ rb_ary_product(argc, argv, ary)
 	}
 
 	/* put it on the result array */
-	rb_ary_push(result, subarray);
+	if (NIL_P(result)) {
+	    FL_SET(t0, FL_USER5);
+	    rb_yield(subarray);
+	    if (! FL_TEST(t0, FL_USER5)) {
+		rb_raise(rb_eRuntimeError, "product reentered");
+	    }
+	    else {
+		FL_UNSET(t0, FL_USER5);
+	    }
+	}
+	else {
+	    rb_ary_push(result, subarray);
+	}
 
 	/*
 	 * Increment the last counter.  If it overflows, reset to 0
@@ -3638,81 +5500,92 @@ rb_ary_product(argc, argv, ary)
 	 */
 	m = n-1;
 	counters[m]++;
-	while (m > 0 && counters[m] == RARRAY(arrays[m])->len) {
+	while (counters[m] == RARRAY_LEN(arrays[m])) {
 	    counters[m] = 0;
-	    m--;
+	    /* If the first counter overflows, we are done */
+	    if (--m < 0) goto done;
 	    counters[m]++;
 	}
     }
+done:
+    tmpary_discard(t0);
+    tmpbuf_discard(t1);
 
-    return result;
+    return NIL_P(result) ? ary : result;
 }
 
 /*
  *  call-seq:
- *     ary.take(n)               => array
- *  
- *  Returns first n elements from <i>ary</i>.
- *     
+ *     ary.take(n)               -> new_ary
+ *
+ *  Returns first +n+ elements from the array.
+ *
+ *  If a negative number is given, raises an ArgumentError.
+ *
+ *  See also Array#drop
+ *
  *     a = [1, 2, 3, 4, 5, 0]
- *     a.take(3)             # => [1, 2, 3]
- *     
+ *     a.take(3)             #=> [1, 2, 3]
+ *
  */
 
 static VALUE
-rb_ary_take(obj, n)
-    VALUE obj;
-    VALUE n;
+rb_ary_take(VALUE obj, VALUE n)
 {
     long len = NUM2LONG(n);
     if (len < 0) {
 	rb_raise(rb_eArgError, "attempt to take negative size");
     }
-
     return rb_ary_subseq(obj, 0, len);
 }
 
 /*
  *  call-seq:
- *     ary.take_while {|arr| block }   => array
- *  
- *  Passes elements to the block until the block returns nil or false,
- *  then stops iterating and returns an array of all prior elements.
- *     
+ *     ary.take_while { |obj| block }  -> new_ary
+ *     ary.take_while                  -> Enumerator
+ *
+ *  Passes elements to the block until the block returns +nil+ or +false+, then
+ *  stops iterating and returns an array of all prior elements.
+ *
+ *  If no block is given, an Enumerator is returned instead.
+ *
+ *  See also Array#drop_while
+ *
  *     a = [1, 2, 3, 4, 5, 0]
- *     a.take_while {|i| i < 3 }   # => [1, 2]
- *     
+ *     a.take_while { |i| i < 3 }  #=> [1, 2]
+ *
  */
 
 static VALUE
-rb_ary_take_while(ary)
-    VALUE ary;
+rb_ary_take_while(VALUE ary)
 {
     long i;
 
     RETURN_ENUMERATOR(ary, 0, 0);
-    for (i = 0; i < RARRAY(ary)->len; i++) {
-	if (!RTEST(rb_yield(RARRAY(ary)->ptr[i]))) break;
+    for (i = 0; i < RARRAY_LEN(ary); i++) {
+	if (!RTEST(rb_yield(RARRAY_AREF(ary, i)))) break;
     }
     return rb_ary_take(ary, LONG2FIX(i));
 }
 
 /*
  *  call-seq:
- *     ary.drop(n)               => array
- *  
- *  Drops first n elements from <i>ary</i>, and returns rest elements
- *  in an array.
- *     
+ *     ary.drop(n)               -> new_ary
+ *
+ *  Drops first +n+ elements from +ary+ and returns the rest of the elements in
+ *  an array.
+ *
+ *  If a negative number is given, raises an ArgumentError.
+ *
+ *  See also Array#take
+ *
  *     a = [1, 2, 3, 4, 5, 0]
- *     a.drop(3)             # => [4, 5, 0]
- *     
+ *     a.drop(3)             #=> [4, 5, 0]
+ *
  */
 
 static VALUE
-rb_ary_drop(ary, n)
-    VALUE ary;
-    VALUE n;
+rb_ary_drop(VALUE ary, VALUE n)
 {
     VALUE result;
     long pos = NUM2LONG(n);
@@ -3720,60 +5593,500 @@ rb_ary_drop(ary, n)
 	rb_raise(rb_eArgError, "attempt to drop negative size");
     }
 
-    result = rb_ary_subseq(ary, pos, RARRAY(ary)->len);
+    result = rb_ary_subseq(ary, pos, RARRAY_LEN(ary));
     if (result == Qnil) result = rb_ary_new();
     return result;
 }
 
 /*
  *  call-seq:
- *     ary.drop_while {|arr| block }   => array
- *  
- *  Drops elements up to, but not including, the first element for
- *  which the block returns nil or false and returns an array
- *  containing the remaining elements.
- *     
+ *     ary.drop_while { |obj| block }   -> new_ary
+ *     ary.drop_while                  -> Enumerator
+ *
+ *  Drops elements up to, but not including, the first element for which the
+ *  block returns +nil+ or +false+ and returns an array containing the
+ *  remaining elements.
+ *
+ *  If no block is given, an Enumerator is returned instead.
+ *
+ *  See also Array#take_while
+ *
  *     a = [1, 2, 3, 4, 5, 0]
- *     a.drop_while {|i| i < 3 }   # => [3, 4, 5, 0]
- *     
+ *     a.drop_while {|i| i < 3 }   #=> [3, 4, 5, 0]
+ *
  */
 
 static VALUE
-rb_ary_drop_while(ary)
-    VALUE ary;
+rb_ary_drop_while(VALUE ary)
 {
     long i;
 
     RETURN_ENUMERATOR(ary, 0, 0);
-    for (i = 0; i < RARRAY(ary)->len; i++) {
-	if (!RTEST(rb_yield(RARRAY(ary)->ptr[i]))) break;
+    for (i = 0; i < RARRAY_LEN(ary); i++) {
+	if (!RTEST(rb_yield(RARRAY_AREF(ary, i)))) break;
     }
     return rb_ary_drop(ary, LONG2FIX(i));
 }
 
+/*
+ *  call-seq:
+ *     ary.any? [{ |obj| block }]   -> true or false
+ *
+ *  See also Enumerable#any?
+ */
+
+static VALUE
+rb_ary_any_p(VALUE ary)
+{
+    long i, len = RARRAY_LEN(ary);
+    const VALUE *ptr = RARRAY_CONST_PTR(ary);
+
+    if (!len) return Qfalse;
+    if (!rb_block_given_p()) {
+	for (i = 0; i < len; ++i) if (RTEST(ptr[i])) return Qtrue;
+    }
+    else {
+	for (i = 0; i < RARRAY_LEN(ary); ++i) {
+	    if (RTEST(rb_yield(RARRAY_AREF(ary, i)))) return Qtrue;
+	}
+    }
+    return Qfalse;
+}
+
+/*
+ * call-seq:
+ *   ary.dig(idx, ...)                 -> object
+ *
+ * Extracts the nested value specified by the sequence of <i>idx</i>
+ * objects by calling +dig+ at each step, returning +nil+ if any
+ * intermediate step is +nil+.
+ *
+ *   a = [[1, [2, 3]]]
+ *
+ *   a.dig(0, 1, 1)                    #=> 3
+ *   a.dig(1, 2, 3)                    #=> nil
+ *   a.dig(0, 0, 0)                    #=> TypeError: Fixnum 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);
+}
+
+/*
+ * 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.
+ *
+ *   ["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 Fixnum#+.
+ *
+ */
+
+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;
+    }
+    if (n != 0)
+        v = rb_fix_plus(LONG2FIX(n), v);
+    if (r != Qundef) {
+        /* r can be a 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);
+    }
+    return v;
+
+  not_exact:
+    if (n != 0)
+        v = rb_fix_plus(LONG2FIX(n), v);
+    if (r != Qundef) {
+        /* r can be a 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);
+    }
+
+    if (RB_FLOAT_TYPE_P(e)) {
+        /* Kahan's compensated summation algorithm */
+        double f, c;
+
+        f = NUM2DBL(v);
+        c = 0.0;
+        goto has_float_value;
+        for (; i < RARRAY_LEN(ary); i++) {
+            double x, y, 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;
+
+            y = x - c;
+            t = f + y;
+            c = (t - f) - y;
+            f = t;
+        }
+        return DBL2NUM(f);
 
-/* Arrays are ordered, integer-indexed collections of any object. 
- * Array indexing starts at 0, as in C or Java.  A negative index is 
- * assumed to be relative to the end of the array---that is, an index of -1 
- * indicates the last element of the array, -2 is the next to last 
- * element in the array, and so on. 
+      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
+ *  to be relative to the end of the array---that is, an index of -1 indicates
+ *  the last element of the array, -2 is the next to last element in the
+ *  array, and so on.
+ *
+ *  == Creating Arrays
+ *
+ *  A new array can be created by using the literal constructor
+ *  <code>[]</code>.  Arrays can contain different types of objects.  For
+ *  example, the array below contains an Integer, a String and a Float:
+ *
+ *     ary = [1, "two", 3.0] #=> [1, "two", 3.0]
+ *
+ *  An array can also be created by explicitly calling Array.new with zero, one
+ *  (the initial size of the Array) or two arguments (the initial size and a
+ *  default object).
+ *
+ *     ary = Array.new    #=> []
+ *     Array.new(3)       #=> [nil, nil, nil]
+ *     Array.new(3, true) #=> [true, true, true]
+ *
+ *  Note that the second argument populates the array with references to the
+ *  same object.  Therefore, it is only recommended in cases when you need to
+ *  instantiate arrays with natively immutable objects such as Symbols,
+ *  numbers, true or false.
+ *
+ *  To create an array with separate objects a block can be passed instead.
+ *  This method is safe to use with mutable objects such as hashes, strings or
+ *  other arrays:
+ *
+ *     Array.new(4) { Hash.new } #=> [{}, {}, {}, {}]
+ *
+ *  This is also a quick way to build up multi-dimensional arrays:
+ *
+ *     empty_table = Array.new(3) { Array.new(3) }
+ *     #=> [[nil, nil, nil], [nil, nil, nil], [nil, nil, nil]]
+ *
+ *  An array can also be created by using the Array() method, provided by
+ *  Kernel, which tries to call #to_ary, then #to_a on its argument.
+ *
+ *	Array({:a => "a", :b => "b"}) #=> [[:a, "a"], [:b, "b"]]
+ *
+ *  == Example Usage
+ *
+ *  In addition to the methods it mixes in through the Enumerable module, the
+ *  Array class has proprietary methods for accessing, searching and otherwise
+ *  manipulating arrays.
+ *
+ *  Some of the more common ones are illustrated below.
+ *
+ *  == Accessing Elements
+ *
+ *  Elements in an array can be retrieved using the Array#[] method.  It can
+ *  take a single integer argument (a numeric index), a pair of arguments
+ *  (start and length) or a range. Negative indices start counting from the end,
+ *  with -1 being the last element.
+ *
+ *     arr = [1, 2, 3, 4, 5, 6]
+ *     arr[2]    #=> 3
+ *     arr[100]  #=> nil
+ *     arr[-3]   #=> 4
+ *     arr[2, 3] #=> [3, 4, 5]
+ *     arr[1..4] #=> [2, 3, 4, 5]
+ *     arr[1..-3] #=> [2, 3, 4]
+ *
+ *  Another way to access a particular array element is by using the #at method
+ *
+ *     arr.at(0) #=> 1
+ *
+ *  The #slice method works in an identical manner to Array#[].
+ *
+ *  To raise an error for indices outside of the array bounds or else to
+ *  provide a default value when that happens, you can use #fetch.
+ *
+ *     arr = ['a', 'b', 'c', 'd', 'e', 'f']
+ *     arr.fetch(100) #=> IndexError: index 100 outside of array bounds: -6...6
+ *     arr.fetch(100, "oops") #=> "oops"
+ *
+ *  The special methods #first and #last will return the first and last
+ *  elements of an array, respectively.
+ *
+ *     arr.first #=> 1
+ *     arr.last  #=> 6
+ *
+ *  To return the first +n+ elements of an array, use #take
+ *
+ *     arr.take(3) #=> [1, 2, 3]
+ *
+ *  #drop does the opposite of #take, by returning the elements after +n+
+ *  elements have been dropped:
+ *
+ *     arr.drop(3) #=> [4, 5, 6]
+ *
+ *  == Obtaining Information about an Array
+ *
+ *  Arrays keep track of their own length at all times.  To query an array
+ *  about the number of elements it contains, use #length, #count or #size.
+ *
+ *    browsers = ['Chrome', 'Firefox', 'Safari', 'Opera', 'IE']
+ *    browsers.length #=> 5
+ *    browsers.count #=> 5
+ *
+ *  To check whether an array contains any elements at all
+ *
+ *    browsers.empty? #=> false
+ *
+ *  To check whether a particular item is included in the array
+ *
+ *    browsers.include?('Konqueror') #=> false
+ *
+ *  == Adding Items to Arrays
+ *
+ *  Items can be added to the end of an array by using either #push or #<<
+ *
+ *    arr = [1, 2, 3, 4]
+ *    arr.push(5) #=> [1, 2, 3, 4, 5]
+ *    arr << 6    #=> [1, 2, 3, 4, 5, 6]
+ *
+ *  #unshift will add a new item to the beginning of an array.
+ *
+ *     arr.unshift(0) #=> [0, 1, 2, 3, 4, 5, 6]
+ *
+ *  With #insert you can add a new element to an array at any position.
+ *
+ *     arr.insert(3, 'apple')  #=> [0, 1, 2, 'apple', 3, 4, 5, 6]
+ *
+ *  Using the #insert method, you can also insert multiple values at once:
+ *
+ *     arr.insert(3, 'orange', 'pear', 'grapefruit')
+ *     #=> [0, 1, 2, "orange", "pear", "grapefruit", "apple", 3, 4, 5, 6]
+ *
+ *  == Removing Items from an Array
+ *
+ *  The method #pop removes the last element in an array and returns it:
+ *
+ *     arr =  [1, 2, 3, 4, 5, 6]
+ *     arr.pop #=> 6
+ *     arr #=> [1, 2, 3, 4, 5]
+ *
+ *  To retrieve and at the same time remove the first item, use #shift:
+ *
+ *     arr.shift #=> 1
+ *     arr #=> [2, 3, 4, 5]
+ *
+ *  To delete an element at a particular index:
+ *
+ *     arr.delete_at(2) #=> 4
+ *     arr #=> [2, 3, 5]
+ *
+ *  To delete a particular element anywhere in an array, use #delete:
+ *
+ *     arr = [1, 2, 2, 3]
+ *     arr.delete(2) #=> 2
+ *     arr #=> [1,3]
+ *
+ *  A useful method if you need to remove +nil+ values from an array is
+ *  #compact:
+ *
+ *     arr = ['foo', 0, nil, 'bar', 7, 'baz', nil]
+ *     arr.compact  #=> ['foo', 0, 'bar', 7, 'baz']
+ *     arr          #=> ['foo', 0, nil, 'bar', 7, 'baz', nil]
+ *     arr.compact! #=> ['foo', 0, 'bar', 7, 'baz']
+ *     arr          #=> ['foo', 0, 'bar', 7, 'baz']
+ *
+ *  Another common need is to remove duplicate elements from an array.
+ *
+ *  It has the non-destructive #uniq, and destructive method #uniq!
+ *
+ *     arr = [2, 5, 6, 556, 6, 6, 8, 9, 0, 123, 556]
+ *     arr.uniq #=> [2, 5, 6, 556, 8, 9, 0, 123]
+ *
+ *  == Iterating over Arrays
+ *
+ *  Like all classes that include the Enumerable module, Array has an each
+ *  method, which defines what elements should be iterated over and how.  In
+ *  case of Array's #each, all elements in the Array instance are yielded to
+ *  the supplied block in sequence.
+ *
+ *  Note that this operation leaves the array unchanged.
+ *
+ *     arr = [1, 2, 3, 4, 5]
+ *     arr.each { |a| print a -= 10, " " }
+ *     # prints: -9 -8 -7 -6 -5
+ *     #=> [1, 2, 3, 4, 5]
+ *
+ *  Another sometimes useful iterator is #reverse_each which will iterate over
+ *  the elements in the array in reverse order.
+ *
+ *     words = %w[first second third fourth fifth sixth]
+ *     str = ""
+ *     words.reverse_each { |word| str += "#{word} " }
+ *     p str #=> "sixth fifth fourth third second first "
+ *
+ *  The #map method can be used to create a new array based on the original
+ *  array, but with the values modified by the supplied block:
+ *
+ *     arr.map { |a| 2*a }   #=> [2, 4, 6, 8, 10]
+ *     arr                   #=> [1, 2, 3, 4, 5]
+ *     arr.map! { |a| a**2 } #=> [1, 4, 9, 16, 25]
+ *     arr                   #=> [1, 4, 9, 16, 25]
+ *
+ *  == Selecting Items from an Array
+ *
+ *  Elements can be selected from an array according to criteria defined in a
+ *  block.  The selection can happen in a destructive or a non-destructive
+ *  manner.  While the destructive operations will modify the array they were
+ *  called on, the non-destructive methods usually return a new array with the
+ *  selected elements, but leave the original array unchanged.
+ *
+ *  === Non-destructive Selection
+ *
+ *     arr = [1, 2, 3, 4, 5, 6]
+ *     arr.select { |a| a > 3 }     #=> [4, 5, 6]
+ *     arr.reject { |a| a < 3 }     #=> [3, 4, 5, 6]
+ *     arr.drop_while { |a| a < 4 } #=> [4, 5, 6]
+ *     arr                          #=> [1, 2, 3, 4, 5, 6]
+ *
+ *  === Destructive Selection
+ *
+ *  #select! and #reject! are the corresponding destructive methods to #select
+ *  and #reject
+ *
+ *  Similar to #select vs. #reject, #delete_if and #keep_if have the exact
+ *  opposite result when supplied with the same block:
+ *
+ *     arr.delete_if { |a| a < 4 } #=> [4, 5, 6]
+ *     arr                         #=> [4, 5, 6]
+ *
+ *     arr = [1, 2, 3, 4, 5, 6]
+ *     arr.keep_if { |a| a < 4 } #=> [1, 2, 3]
+ *     arr                       #=> [1, 2, 3]
+ *
  */
 
 void
-Init_Array()
+Init_Array(void)
 {
+#undef rb_intern
+#define rb_intern(str) rb_intern_const(str)
+
     rb_cArray  = rb_define_class("Array", rb_cObject);
     rb_include_module(rb_cArray, rb_mEnumerable);
 
-    rb_define_alloc_func(rb_cArray, ary_alloc);
+    rb_define_alloc_func(rb_cArray, empty_ary_alloc);
     rb_define_singleton_method(rb_cArray, "[]", rb_ary_s_create, -1);
+    rb_define_singleton_method(rb_cArray, "try_convert", rb_ary_s_try_convert, 1);
     rb_define_method(rb_cArray, "initialize", rb_ary_initialize, -1);
     rb_define_method(rb_cArray, "initialize_copy", rb_ary_replace, 1);
 
-    rb_define_method(rb_cArray, "to_s", rb_ary_to_s, 0);
     rb_define_method(rb_cArray, "inspect", rb_ary_inspect, 0);
+    rb_define_alias(rb_cArray,  "to_s", "inspect");
     rb_define_method(rb_cArray, "to_a", rb_ary_to_a, 0);
+    rb_define_method(rb_cArray, "to_h", rb_ary_to_h, 0);
     rb_define_method(rb_cArray, "to_ary", rb_ary_to_ary_m, 0);
     rb_define_method(rb_cArray, "frozen?",  rb_ary_frozen_p, 0);
 
@@ -3787,7 +6100,7 @@ Init_Array()
     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, 1);
+    rb_define_method(rb_cArray, "concat", rb_ary_concat_multi, -1);
     rb_define_method(rb_cArray, "<<", rb_ary_push, 1);
     rb_define_method(rb_cArray, "push", rb_ary_push_m, -1);
     rb_define_method(rb_cArray, "pop", rb_ary_pop_m, -1);
@@ -3803,18 +6116,21 @@ Init_Array()
     rb_define_method(rb_cArray, "find_index", rb_ary_index, -1);
     rb_define_method(rb_cArray, "index", rb_ary_index, -1);
     rb_define_method(rb_cArray, "rindex", rb_ary_rindex, -1);
-    rb_define_method(rb_cArray, "indexes", rb_ary_indexes, -1);
-    rb_define_method(rb_cArray, "indices", rb_ary_indexes, -1);
     rb_define_method(rb_cArray, "join", rb_ary_join_m, -1);
     rb_define_method(rb_cArray, "reverse", rb_ary_reverse_m, 0);
     rb_define_method(rb_cArray, "reverse!", rb_ary_reverse_bang, 0);
+    rb_define_method(rb_cArray, "rotate", rb_ary_rotate_m, -1);
+    rb_define_method(rb_cArray, "rotate!", rb_ary_rotate_bang, -1);
     rb_define_method(rb_cArray, "sort", rb_ary_sort, 0);
     rb_define_method(rb_cArray, "sort!", rb_ary_sort_bang, 0);
+    rb_define_method(rb_cArray, "sort_by!", rb_ary_sort_by_bang, 0);
     rb_define_method(rb_cArray, "collect", rb_ary_collect, 0);
     rb_define_method(rb_cArray, "collect!", rb_ary_collect_bang, 0);
     rb_define_method(rb_cArray, "map", rb_ary_collect, 0);
     rb_define_method(rb_cArray, "map!", rb_ary_collect_bang, 0);
     rb_define_method(rb_cArray, "select", rb_ary_select, 0);
+    rb_define_method(rb_cArray, "select!", rb_ary_select_bang, 0);
+    rb_define_method(rb_cArray, "keep_if", rb_ary_keep_if, 0);
     rb_define_method(rb_cArray, "values_at", rb_ary_values_at, -1);
     rb_define_method(rb_cArray, "delete", rb_ary_delete, 1);
     rb_define_method(rb_cArray, "delete_at", rb_ary_delete_at_m, 1);
@@ -3842,27 +6158,38 @@ Init_Array()
     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);
     rb_define_method(rb_cArray, "compact!", rb_ary_compact_bang, 0);
     rb_define_method(rb_cArray, "flatten", rb_ary_flatten, -1);
     rb_define_method(rb_cArray, "flatten!", rb_ary_flatten_bang, -1);
-    rb_define_method(rb_cArray, "nitems", rb_ary_nitems, 0);
     rb_define_method(rb_cArray, "count", rb_ary_count, -1);
-    rb_define_method(rb_cArray, "shuffle!", rb_ary_shuffle_bang, 0);
-    rb_define_method(rb_cArray, "shuffle", rb_ary_shuffle, 0);
-    rb_define_method(rb_cArray, "choice", rb_ary_choice, 0);
+    rb_define_method(rb_cArray, "shuffle!", rb_ary_shuffle_bang, -1);
+    rb_define_method(rb_cArray, "shuffle", rb_ary_shuffle, -1);
+    rb_define_method(rb_cArray, "sample", rb_ary_sample, -1);
     rb_define_method(rb_cArray, "cycle", rb_ary_cycle, -1);
     rb_define_method(rb_cArray, "permutation", rb_ary_permutation, -1);
     rb_define_method(rb_cArray, "combination", rb_ary_combination, 1);
+    rb_define_method(rb_cArray, "repeated_permutation", rb_ary_repeated_permutation, 1);
+    rb_define_method(rb_cArray, "repeated_combination", rb_ary_repeated_combination, 1);
     rb_define_method(rb_cArray, "product", rb_ary_product, -1);
 
     rb_define_method(rb_cArray, "take", rb_ary_take, 1);
     rb_define_method(rb_cArray, "take_while", rb_ary_take_while, 0);
     rb_define_method(rb_cArray, "drop", rb_ary_drop, 1);
     rb_define_method(rb_cArray, "drop_while", rb_ary_drop_while, 0);
+    rb_define_method(rb_cArray, "bsearch", rb_ary_bsearch, 0);
+    rb_define_method(rb_cArray, "bsearch_index", rb_ary_bsearch_index, 0);
+    rb_define_method(rb_cArray, "any?", rb_ary_any_p, 0);
+    rb_define_method(rb_cArray, "dig", rb_ary_dig, -1);
+    rb_define_method(rb_cArray, "sum", rb_ary_sum, -1);
 
     id_cmp = rb_intern("<=>");
-    inspect_key = rb_intern("__inspect_key__");
+    id_random = rb_intern("random");
+    id_div = rb_intern("div");
+    id_power = rb_intern("**");
 }
diff --git a/basictest/runner.rb b/basictest/runner.rb
new file mode 100755
index 0000000000..0330b6d506
--- /dev/null
+++ b/basictest/runner.rb
@@ -0,0 +1,33 @@
+#! ./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 opt = ENV["RUBYOPT"]
+  ENV["RUBYOPT"] = opt + " -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
new file mode 100755
index 0000000000..8472a0d14a
--- /dev/null
+++ b/basictest/test.rb
@@ -0,0 +1,2367 @@
+#! /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/bcc32/Makefile.sub b/bcc32/Makefile.sub
deleted file mode 100644
index 713b5c69df..0000000000
--- a/bcc32/Makefile.sub
+++ /dev/null
@@ -1,549 +0,0 @@
-# -*- makefile -*-
-
-SHELL = $(COMSPEC)
-MKFILES = Makefile
-
-#### Start of system configuration section. ####
-!ifndef OS
-OS = bccwin32
-!endif
-!if !defined(RT)
-!error RT not defined.  Retry from configure pass.
-!endif
-
-## variables may be overridden by $(compile_dir)/Makefile
-!ifndef srcdir
-srcdir = ..
-!endif
-!ifndef RUBY_INSTALL_NAME
-RUBY_INSTALL_NAME = ruby
-!endif
-!ifndef RUBYW_INSTALL_NAME
-RUBYW_INSTALL_NAME = $(RUBY_INSTALL_NAME:ruby=rubyw)
-!elif "$(RUBYW_INSTALL_NAME)" == "$(RUBY_INSTALL_NAME)"
-RUBYW_INSTALL_NAME = $(RUBY_INSTALL_NAME:ruby=rubyw)
-!endif
-!if "$(RUBYW_INSTALL_NAME)" == "$(RUBY_INSTALL_NAME)"
-RUBYW_INSTALL_NAME = $(RUBY_INSTALL_NAME)w
-!endif
-!ifndef RUBY_SO_NAME
-RUBY_SO_NAME = $(RT)-$(RUBY_INSTALL_NAME)$(MAJOR)$(MINOR)
-!endif
-!ifndef icondirs
-!ifdef ICONDIRS
-icondirs=$(ICONDIRS)
-!endif
-!endif
-!ifdef icondirs
-icondirs=$(icondirs:\=/)
-iconinc=-I$(icondirs: = -I)
-!endif
-###############
-
-VPATH = $(srcdir):$(srcdir)/missing
-.SUFFIXES: .y
-
-!ifndef CC
-CC = bcc32
-!endif
-!ifndef CPP
-CPP = cpp32
-!endif
-!ifndef RC
-RC = brcc32
-!endif
-!ifndef YACC
-YACC = byacc
-!endif
-!ifndef AR
-AR = tlib
-!endif
-
-PURIFY =
-AUTOCONF = autoconf
-RM = $(srcdir:/=\)\win32\rm.bat
-
-!if !defined(PROCESSOR_ARCHITECTURE)
-PROCESSOR_ARCHITECTURE = x86
-!endif
-MACHINE = $(PROCESSOR_ARCHITECTURE)
-!if "$(PROCESSOR_ARCHITECTURE)" == "x86"
-!ifndef PROCESSOR_LEVEL
-PROCESSOR_LEVEL = 5
-!endif
-!if 6 < $(PROCESSOR_LEVEL)
-PROCESSOR_LEVEL = 6
-!endif
-PROCESSOR_FLAG = -$(PROCESSOR_LEVEL)
-CPU = i$(PROCESSOR_LEVEL)86
-ARCH = i386
-!else
-CPU = $(PROCESSOR_ARCHITECTURE)
-ARCH = $(PROCESSOR_ARCHITECTURE)
-!endif
-!ifndef DEBUGFLAGS
-DEBUGFLAGS = 
-!endif
-!ifndef OPTFLAGS
-OPTFLAGS = -O
-!endif
-
-!ifndef prefix
-prefix = /usr
-!endif
-!ifndef exec_prefix
-exec_prefix = $(prefix)
-!endif
-!ifndef libdir
-libdir = $(exec_prefix)/lib
-!endif
-!if !defined(datadir)
-datadir = /share
-!endif
-!ifndef EXTOUT
-EXTOUT = .ext
-!endif
-!ifndef RIDATADIR
-RIDATADIR = $(DESTDIR)$(datadir)/ri/$(MAJOR).$(MINOR)/system
-!endif
-!ifndef TESTUI
-TESTUI = console
-!endif
-!ifndef TESTS
-TESTS =
-!endif
-!ifndef RDOCTARGET
-RDOCTARGET = install-nodoc
-!endif
-
-OUTFLAG       = -o
-!ifndef CFLAGS
-CFLAGS = -q -tWR -tWC $(DEBUGFLAGS) $(OPTFLAGS) $(PROCESSOR_FLAG) -w- -wsus -wcpt -wdup -wext -wrng -wrpt -wzdi
-!endif
-!ifndef LDFLAGS
-LDFLAGS = -S:$(STACK)
-!endif
-!ifndef RFLAGS
-RFLAGS = $(iconinc)
-!endif
-!ifndef EXTLIBS
-EXTLIBS =
-!endif
-!ifndef MEMLIB
-MEMLIB =
-!endif
-LIBS = $(MEMLIB) cw32i.lib import32.lib ws2_32.lib $(EXTLIBS)
-MISSING = acosh.obj crypt.obj erf.obj win32.obj
-
-!ifndef STACK
-STACK = 0x2000000
-!endif
-
-XCFLAGS = -DRUBY_EXPORT -I. -I$(srcdir) -I$(srcdir)/missing
-
-ARFLAGS = /a /p32
-LD = ilink32 -q -Gn
-LDSHARED  = $(LD)
-XLDFLAGS  = -Tpe c0x32.obj
-WLDFLAGS  = -aa -Tpe c0w32.obj
-DLDFLAGS  = -Tpd c0d32.obj
-LIBRUBY_LDSHARED = $(LDSHARED)
-LIBRUBY_DLDFLAGS = -Gi $(DLDFLAGS) $(EXTLDFLAGS)
-LDOBJECTS = $(MAINOBJ)
-
-SOLIBS = 
-
-EXEEXT = .exe
-PROGRAM=$(RUBY_INSTALL_NAME)$(EXEEXT)
-WPROGRAM=$(RUBYW_INSTALL_NAME)$(EXEEXT)
-RUBYDEF = $(RUBY_SO_NAME).def
-MINIRUBY = .\miniruby$(EXEEXT) -I$(srcdir)/lib $(MINIRUBYOPT)
-RUNRUBY = .\$(PROGRAM) "$(srcdir)/runruby.rb" --extout="$(EXTOUT)" --
-
-ORGLIBPATH = $(LIB)
-
-#### End of system configuration section. ####
-
-LIBRUBY_A     = $(RUBY_SO_NAME)-static.lib
-LIBRUBY_SO    = $(RUBY_SO_NAME).dll
-LIBRUBY       = $(RUBY_SO_NAME).lib
-LIBRUBYARG    = $(LIBRUBY)
-
-PREP          = miniruby$(EXEEXT)
-
-OBJEXT        = obj
-
-INSTALLED_LIST= .installed.list
-
-WINMAINOBJ    = winmain.$(OBJEXT)
-MINIOBJS      = dmydln.$(OBJEXT)
-
-.path.c = .;$(srcdir);$(srcdir)/win32;$(srcdir)/missing
-.path.h = .;$(srcdir);$(srcdir)/win32;$(srcdir)/missing
-.path.y = $(srcdir)
-.path. = $(srcdir)
-
-.c.obj:
-	$(CC) $(CFLAGS) $(XCFLAGS) -I. $(CPPFLAGS) -c $(<:/=\)
-
-.rc.res:
-	$(RC) $(RFLAGS) -I. -I$(<D). $(iconinc) -I$(srcdir)/win32 $(RFLAGS) -fo$@ $(<:/=\)
-
-.y.c:
-	$(YACC) $(YFLAGS) $(<:\=/)
-	sed -e "s!^ *extern char \*getenv();!/* & */!;s/^\(#.*\)y\.tab/\1parse/" y.tab.c > $(@F)
-	@del y.tab.c
-
-all: $(srcdir)/bcc32/Makefile.sub $(srcdir)/common.mk
-
-ruby: $(PROGRAM)
-rubyw: $(WPROGRAM)
-
-!include $(srcdir)/common.mk
-
-$(MKFILES): $(srcdir)/bcc32/Makefile.sub $(srcdir)/bcc32/configure.bat $(srcdir)/bcc32/setup.mak
-	$(COMSPEC) /C $(srcdir:/=\)\bcc32\configure.bat $(configure_args)
-	@echo $(MKFILES) should be updated, re-run $(MAKE).
-	@$(MAKE) > nul -q -f &&|
-PHONY: nul
-	@exit
-|
-
-CONFIG_H = ./.config.h.time
-
-config: config.status
-
-config.status: $(CONFIG_H)
-
-$(CONFIG_H): $(MKFILES) $(srcdir)/bcc32/Makefile.sub
-	@$(srcdir:/=\)\win32\ifchange.bat config.h &&|
-\#define HAVE_SYS_TYPES_H 1
-\#define HAVE_SYS_STAT_H 1
-\#define HAVE_STDLIB_H 1
-\#define HAVE_STRING_H 1
-\#define HAVE_MEMORY_H 1
-\#define HAVE_OFF_T 1
-\#define SIZEOF_INT 4
-\#define SIZEOF_SHORT 2
-\#define SIZEOF_LONG 4
-\#define SIZEOF_LONG_LONG 0
-\#define SIZEOF___INT64 8
-\#define SIZEOF_OFF_T 4
-\#define SIZEOF_VOIDP 4
-\#define SIZEOF_FLOAT 4
-\#define SIZEOF_DOUBLE 8
-\#define SIZEOF_TIME_T 4
-\#define HAVE_PROTOTYPES 1
-\#define TOKEN_PASTE(x,y) x\#\#y
-\#define HAVE_STDARG_PROTOTYPES 1
-\#define NORETURN(x) x
-\#define RUBY_EXTERN extern __declspec(dllimport)
-\#define HAVE_DECL_SYS_NERR 1
-\#define HAVE_LIMITS_H 1
-\#define HAVE_FCNTL_H 1
-\#define HAVE_UTIME_H 1
-\#define HAVE_FLOAT_H 1
-\#define rb_uid_t uid_t
-\#define rb_gid_t gid_t
-\#define rb_pid_t int
-\#define HAVE_STRUCT_STAT_ST_RDEV 1
-\#define HAVE_ST_RDEV 1
-\#define GETGROUPS_T int
-\#define RETSIGTYPE void
-\#define HAVE_ALLOCA 1
-\#define HAVE_DUP2 1
-\#define HAVE_MEMMOVE 1
-\#define HAVE_MKDIR 1
-\#define HAVE_STRCASECMP 1
-\#define HAVE_STRNCASECMP 1
-\#define HAVE_STRERROR 1
-\#define HAVE_STRFTIME 1
-\#define HAVE_STRCHR 1
-\#define HAVE_STRSTR 1
-\#define HAVE_STRTOD 1
-\#define HAVE_STRTOL 1
-\#define HAVE_STRTOUL 1
-\#define HAVE_VSNPRINTF 1
-\#define HAVE_ISNAN 1
-\#define HAVE_FINITE 1
-\#define HAVE_HYPOT 1
-\#define HAVE_FMOD 1
-\#define HAVE_WAITPID 1
-\#define HAVE_FSYNC 1
-\#define HAVE_GETCWD 1
-\#define HAVE_CHSIZE 1
-\#define HAVE_TIMES 1
-\#define HAVE_FCNTL 1
-\#define HAVE_LINK 1
-\#define HAVE_TELLDIR 1
-\#define HAVE_SEEKDIR 1
-\#define HAVE_COSH 1
-\#define HAVE_SINH 1
-\#define HAVE_TANH 1
-\#define RSHIFT(x,y) ((x)>>(int)y)
-\#define FILE_COUNT level
-\#define FILE_READPTR curp
-\#define RUBY_SETJMP(env) _setjmp(env)
-\#define RUBY_LONGJMP(env,val) longjmp(env,val)
-\#define RUBY_JMP_BUF jmp_buf
-\#define inline __inline
-\#define NEED_IO_SEEK_BETWEEN_RW 1
-\#define STACK_GROW_DIRECTION -1
-\#define DEFAULT_KCODE KCODE_NONE
-\#define DLEXT ".so"
-\#define RUBY_LIB "/lib/ruby/$(MAJOR).$(MINOR)"
-\#define RUBY_SITE_LIB "/lib/ruby/site_ruby"
-\#define RUBY_SITE_LIB2 "/lib/ruby/site_ruby/$(MAJOR).$(MINOR)"
-\#define RUBY_VENDOR_LIB "/lib/ruby/vendor_ruby"
-\#define RUBY_VENDOR_LIB2 "/lib/ruby/vendor_ruby/$(MAJOR).$(MINOR)"
-\#define RUBY_PLATFORM "$(ARCH)-$(OS)"
-\#define RUBY_ARCHLIB "/lib/ruby/$(MAJOR).$(MINOR)/$(ARCH)-$(OS)"
-\#define RUBY_SITE_ARCHLIB "/lib/ruby/site_ruby/$(MAJOR).$(MINOR)/$(ARCH)-$(OS)"
-\#define RUBY_VENDOR_ARCHLIB "/lib/ruby/vendor_ruby/$(MAJOR).$(MINOR)/$(ARCH)-$(OS)"
-|
-	@exit > $@
-
-config.status: $(MKFILES) $(srcdir)/bcc32/Makefile.sub $(srcdir)/common.mk
-	@echo Creating $@
-	@type > $@ &&|
-# Generated automatically by Makefile.sub.
-s,@SHELL@,$$(COMSPEC),;t t
-s,@BUILD_FILE_SEPARATOR@,\,;t t
-s,@PATH_SEPARATOR@,;,;t t
-s,@CFLAGS@,$(CFLAGS),;t t
-s,@CPPFLAGS@,$(CPPFLAGS),;t t
-s,@CXXFLAGS@,$(CXXFLAGS),;t t
-s,@FFLAGS@,$(FFLAGS),;t t
-s,@LDFLAGS@,,;t t
-s,@LIBS@,$(LIBS),;t t
-s,@exec_prefix@,$${prefix},;t t
-s,@prefix@,,;t t
-s,@program_transform_name@,s,,,,;t t
-s,@bindir@,$${exec_prefix}/bin,;t t
-s,@sbindir@,$${exec_prefix}/sbin,;t t
-s,@libexecdir@,$${exec_prefix}/libexec,;t t
-s,@datadir@,$${prefix}/share,;t t
-s,@sysconfdir@,$${prefix}/etc,;t t
-s,@sharedstatedir@,/etc,;t t
-s,@localstatedir@,/var,;t t
-s,@libdir@,$${exec_prefix}/lib,;t t
-s,@includedir@,$${prefix}/include,;t t
-s,@oldincludedir@,/usr/include,;t t
-s,@infodir@,$${prefix}/info,;t t
-s,@mandir@,$${prefix}/man,;t t
-s,@build@,$(CPU)-pc-$(OS),;t t
-s,@build_alias@,$(CPU)-$(OS),;t t
-s,@build_cpu@,$(CPU),;t t
-s,@build_vendor@,pc,;t t
-s,@build_os@,$(OS),;t t
-s,@host@,$(CPU)-pc-$(OS),;t t
-s,@host_alias@,$(CPU)-$(OS),;t t
-s,@host_cpu@,$(CPU),;t t
-s,@host_vendor@,pc,;t t
-s,@host_os@,$(OS),;t t
-s,@target@,$(ARCH)-pc-$(OS),;t t
-s,@target_alias@,$(ARCH)-$(OS),;t t
-s,@target_cpu@,$(ARCH),;t t
-s,@target_vendor@,pc,;t t
-s,@target_os@,$(OS),;t t
-s,@CC@,$(CC),;t t
-s,@CPP@,cpp32,;t t
-s,@YACC@,$(YACC),;t t
-s,@RANLIB@,,;t t
-s,@AR@,$(AR),;t t
-s,@ARFLAGS@,$(ARFLAGS) ,;t t
-s,@LN_S@,$(LN_S),;t t
-s,@SET_MAKE@,MFLAGS = -$$(MAKEFLAGS),;t t
-s,@CP@,copy > nul,;t t
-s,@LIBOBJS@, acosh.obj crypt.obj erf.obj win32.obj,;t t
-s,@ALLOCA@,$(ALLOCA),;t t
-s,@DEFAULT_KCODE@,$(DEFAULT_KCODE),;t t
-s,@EXEEXT@,.exe,;t t
-s,@OBJEXT@,obj,;t t
-s,@XCFLAGS@,$(XCFLAGS),;t t
-s,@XLDFLAGS@,$(XLDFLAGS),;t t
-s,@DLDFLAGS@,$(DLDFLAGS),;t t
-s,@ARCH_FLAG@,$(ARCH_FLAG),;t t
-s,@STATIC@,$(STATIC),;t t
-s,@CCDLFLAGS@,,;t t
-s,@LDSHARED@,$(LDSHARED),;t t
-s,@DLEXT@,so,;t t
-s,@LIBEXT@,lib,;t t
-s,@STRIP@,$(STRIP),;t t
-s,@EXTSTATIC@,$(EXTSTATIC),;t t
-s,@setup@,Setup,;t t
-s,@MINIRUBY@,$(MINIRUBY),;t t
-s,@PREP@,miniruby$(EXEEXT),;t t
-s,@RUNRUBY@,$(RUNRUBY),;t t
-s,@EXTOUT@,$(EXTOUT),;t t
-s,@ARCHFILE@,,;t t
-s,@RDOCTARGET@,,;t t
-s,@LIBRUBY_LDSHARED@,$$(LDSHARED),;t t
-s,@LIBRUBY_DLDFLAGS@,-Gi $$(DLDFLAGS),;t t
-s,@RUBY_INSTALL_NAME@,$(RUBY_INSTALL_NAME),;t t
-s,@rubyw_install_name@,$(RUBYW_INSTALL_NAME),;t t
-s,@RUBYW_INSTALL_NAME@,$(RUBYW_INSTALL_NAME),;t t
-s,@RUBY_SO_NAME@,$(RUBY_SO_NAME),;t t
-s,@LIBRUBY_A@,$$(RUBY_SO_NAME)-static.lib,;t t
-s,@LIBRUBY_SO@,$$(RUBY_SO_NAME).dll,;t t
-s,@LIBRUBY_ALIASES@,$(LIBRUBY_ALIASES),;t t
-s,@LIBRUBY@,$$(RUBY_SO_NAME).lib,;t t
-s,@LIBRUBYARG@,$$(LIBRUBYARG_SHARED),;t t
-s,@LIBRUBYARG_STATIC@,$$(LIBRUBY_A),;t t
-s,@LIBRUBYARG_SHARED@,$$(LIBRUBY),;t t
-s,@SOLIBS@,$(SOLIBS),;t t
-s,@DLDLIBS@,$(DLDLIBS),;t t
-s,@ENABLE_SHARED@,yes,;t t
-s,@OUTFLAG@,$(OUTFLAG),;t t
-s,@CPPOUTFILE@,,;t t
-s,@LIBPATHFLAG@, -L"%s",;t t
-s,@RPATHFLAG@,,;t t
-s,@LIBARG@,%s.lib,;t t
-s,@LINK_SO@,$$(LDSHARED) $$(DLDFLAGS) $$(LIBPATH) $$(OBJS), $$(@:/=\), nul, $$(LIBS) $$(LOCAL_LIBS), $$(DEFFILE), $$(RESFILE),;t t
-s,@COMPILE_C@,$$(CC) $$(INCFLAGS) $$(CFLAGS) $$(CPPFLAGS) -c $$(<:/=\),;t t
-s,@COMPILE_CXX@,$$(CXX) $$(INCFLAGS) $$(CXXFLAGS) $$(CPPFLAGS) -P -c $$(<:/=\),;t t
-s,@COMPILE_RULES@,{$$(srcdir)}.%s{}.%s: {$$(topdir)}.%s{}.%s: {$$(hdrdir)}.%s{}.%s: .%s.%s:,;t t
-s,@RULE_SUBST@,{.;$$(VPATH)}%s,;t t
-s,@COMMON_LIBS@,m advapi32 avicap32 avifil32 cap comctl32 comdlg32 dlcapi gdi32 glu32 imagehlp imm32 inetmib1 kernel32 loadperf lsapi32 lz32 mapi32 mgmtapi mpr msacm32 msvfw32 nddeapi netapi32 ole32 oleaut32 oledlg olepro32 opengl32 pdh pkpd32 rasapi32 rasdlg rassapi rpcrt4 setupapi shell32 shfolder snmpapi sporder tapi32 url user32 vdmdbg version win32spl winmm wintrust wsock32,;t t
-s,@COMMON_MACROS@,WIN32_LEAN_AND_MEAN WIN32,;t t
-s,@COMMON_HEADERS@,winsock2.h windows.h,;t t
-s,@TRY_LINK@,$$(CC) -oconftest $$(INCFLAGS) -I$$(hdrdir) $$(CPPFLAGS) $$(CFLAGS) $$(LIBPATH) $$(LDFLAGS) $$(src) $$(LOCAL_LIBS) $$(LIBS),;t t
-s,@EXPORT_PREFIX@,_,;t t
-s,@arch@,$(ARCH)-$(OS),;t t
-s,@sitearch@,$(ARCH)-$(OS),;t t
-s,@sitedir@,$${prefix}/lib/ruby/site_ruby,;t t
-s,@vendordir@,$${prefix}/lib/ruby/vendor_ruby,;t t
-s,@configure_args@,--enable-shared $(configure_args),;t t
-s,@configure_input@,$$configure_input,;t t
-s,@srcdir@,$(srcdir),;t t
-s,@top_srcdir@,$(srcdir),;t t
-|
-
-miniruby$(EXEEXT):
-		@echo $(LIBS)
-		$(LD) $(LDFLAGS) $(XLDFLAGS) $(MAINOBJ) $(MINIOBJS),$@,nul,$(LIBRUBY_A) $(LIBS)
-
-$(PROGRAM):	$(MAINOBJ) $(LIBRUBY_SO) $(RUBY_INSTALL_NAME).res
-		$(LD) $(LDFLAGS) $(XLDFLAGS) $(MAINOBJ),$@,nul,$(LIBRUBYARG) $(LIBS),,$(RUBY_INSTALL_NAME).res
-
-$(WPROGRAM):	$(MAINOBJ) $(WINMAINOBJ) $(LIBRUBY_SO) $(RUBYW_INSTALL_NAME).res
-		$(LD) $(LDFLAGS) $(WLDFLAGS) $(MAINOBJ) $(WINMAINOBJ),$@,nul,$(LIBRUBYARG) $(LIBS),,$(RUBYW_INSTALL_NAME).res
-
-$(LIBRUBY_A):	$(OBJS) $(DMYEXT)
-		@-if exist $@ del $@
-		$(AR) $(ARFLAGS) "$@" $(OBJS) $(DMYEXT)
-
-# $(LIBRUBY):	$(LIBRUBY_SO)
-#		implib $@ $(LIBRUBY_SO)
-
-$(LIBRUBY_SO): $(LIBRUBY_A) $(DLDOBJS) $(RUBYDEF) $(RUBY_SO_NAME).res
-		@echo $(DLDOBJS)
-		@$(PRE_LIBRUBY_UPDATE)
-		$(LIBRUBY_LDSHARED) $(LIBRUBY_DLDFLAGS) $(DLDOBJS:/=\),$(LIBRUBY_SO),nul,$(LIBRUBY_A) $(LIBS),$(RUBYDEF),$(RUBY_SO_NAME).res
-
-$(LIBRUBY): $(LIBRUBY_SO)
-
-$(RUBYDEF):	$(LIBRUBY_A) $(PREP)
-		$(MINIRUBY) $(srcdir)/bcc32/mkexports.rb -output=$@ -base=$(RUBY_SO_NAME) $(LIBRUBY_A)
-
-$(RUBY_INSTALL_NAME).rc $(RUBYW_INSTALL_NAME).rc $(RUBY_SO_NAME).rc: rbconfig.rb
-		@$(MINIRUBY) $(srcdir)/win32/resource.rb \
-			-ruby_name=$(RUBY_INSTALL_NAME) \
-			-rubyw_name=$(RUBYW_INSTALL_NAME) \
-			-so_name=$(RUBY_SO_NAME) \
-			. $(icondirs) $(srcdir)/win32
-
-post-install-bin::
-	@$(NULLCMD)
-post-install-lib::
-	@$(NULLCMD)
-post-install-ext-comm::
-	@$(NULLCMD)
-post-install-ext-arch::
-	@$(NULLCMD)
-post-install-man::
-	@$(NULLCMD)
-post-install-doc::
-	@$(NULLCMD)
-
-clean-local::
-		@$(RM) $(WINMAINOBJ) ext\extinit.c ext\extinit.$(OBJEXT) *.tds *.il? $(RUBY_SO_NAME).lib
-		@$(RM) $(RUBY_INSTALL_NAME).res $(RUBYW_INSTALL_NAME).res $(RUBY_SO_NAME).res
-		@$(RM) *.map *.pdb *.ilk *.exp $(RUBYDEF)
-
-distclean-local::
-		@$(RM) ext\config.cache $(RBCONFIG:/=\)
-		@$(RM) $(RUBY_INSTALL_NAME).rc $(RUBYW_INSTALL_NAME).rc $(RUBY_SO_NAME).rc
-
-update-rubyspec:
-	@echo SPEC_EXISTS=0 > $@.mk
-	@if exist $(srcdir:/=\)\rubyspec\nul echo SPEC_EXISTS=1 >> $@.mk
-	@type >> $@.mk &&|
-$()update-rubyspec:
-$()	@del $@.mk
-$()!if $$(SPEC_EXISTS)
-$()	cd $(srcdir:/=\)\rubyspec\mspec
-$()	git pull
-$()	cd ..\spec\rubyspec
-$()	git pull
-$()!else
-$()	git clone $(MSPEC_GIT_URL) $(srcdir)/rubyspec/mspec
-$()	git clone $(RUBYSPEC_GIT_URL) $(srcdir)/rubyspec/spec/rubyspec
-$()!endif
-|
-	@$(MAKE) -$(MAKEFLAGS)$(MFLAGS) -f $@.mk
-
-test-rubyspec:
-	@echo SPEC_EXISTS=0 > $@.mk
-	@if exist $(srcdir:/=\)\rubyspec\nul echo SPEC_EXISTS=1 >> $@.mk
-	@type >> $@.mk &&|
-$()test-rubyspec:
-$()!if $$(SPEC_EXISTS)
-$()	$(RUNRUBY) $(srcdir)/rubyspec/mspec/bin/mspec -r$(srcdir)/ext/purelib.rb $(srcdir)/rubyspec/spec/rubyspec/$(MAJOR).$(MINOR)
-$()!else
-$()	@echo No rubyspec here.  put rubyspec to srcdir first.
-$()	@cd $(srcdir:/=\)\rubyspec
-$()!endif
-|
-	@$(MAKE) -$(MAKEFLAGS) -f $@.mk
-
-ext/extinit.obj: ext/extinit.c $(SETUP)
-	$(CC) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) -o$@ -c ext/extinit.c
-
-main.$(OBJEXT): win32.h
-array.$(OBJEXT): win32.h
-bignum.$(OBJEXT): win32.h
-class.$(OBJEXT): win32.h
-compar.$(OBJEXT): win32.h
-dir.$(OBJEXT): dir.h win32.h
-dln.$(OBJEXT): win32.h
-enum.$(OBJEXT): win32.h
-error.$(OBJEXT): win32.h
-eval.$(OBJEXT): win32.h
-file.$(OBJEXT): win32.h
-gc.$(OBJEXT): win32.h
-hash.$(OBJEXT): win32.h
-inits.$(OBJEXT): win32.h
-io.$(OBJEXT): win32.h
-marshal.$(OBJEXT): win32.h
-math.$(OBJEXT): win32.h
-numeric.$(OBJEXT): win32.h
-object.$(OBJEXT): win32.h
-pack.$(OBJEXT): win32.h
-parse.$(OBJEXT): win32.h
-process.$(OBJEXT): win32.h
-prec.$(OBJEXT): win32.h
-random.$(OBJEXT): win32.h
-range.$(OBJEXT): win32.h
-re.$(OBJEXT): win32.h
-regex.$(OBJEXT): win32.h
-ruby.$(OBJEXT): win32.h
-signal.$(OBJEXT): win32.h
-sprintf.$(OBJEXT): win32.h
-st.$(OBJEXT): win32.h
-string.$(OBJEXT): win32.h
-struct.$(OBJEXT): win32.h
-time.$(OBJEXT): win32.h
-util.$(OBJEXT): win32.h
-variable.$(OBJEXT): win32.h
-version.$(OBJEXT): win32.h
diff --git a/bcc32/README.bcc32 b/bcc32/README.bcc32
deleted file mode 100644
index c27a1261f1..0000000000
--- a/bcc32/README.bcc32
+++ /dev/null
@@ -1,137 +0,0 @@
-=begin
-
-= How to build ruby using Borland C++
-
-== Requirement
-
-(1) Borland C++ 5.0 or later.
-
-(2) Please set environment variable (({PATH}))
-    to run required commands properly from the command line.
-
-    Note: building ruby requires following commands.
-     * make
-     * bcc32
-     * tlib
-     * ilink32
-
-(3) If you want to build from CVS source, following commands are required.
-     * byacc ((<URL:http://gnuwin32.sourceforge.net/packages/byacc.htm>))
-     * sed   ((<URL:http://gnuwin32.sourceforge.net/packages/sed.htm>))
-
-(4) We strongly recommend to build ruby on C++Builder, to link following files.
-     * usebormm.lib
-     * memmgr.lib
-
-    RTL's internal memory manager cannot handle large memory block properly,
-    so we should use borlndmm.dll instead.
-     10000.times { "" << "." * 529671; GC.start } # crash
-
-== How to compile and install
-
-(1) Execute bcc32\configure.bat on your build directory.
-     ex. c:\ruby-1.6.7>bcc32\configure.bat
-     
-(2) Change ((|RUBY_INSTALL_NAME|)) and ((|RUBY_SO_NAME|)) in (({Makefile}))
-    if you want to change the name of the executable files. 
-    And add ((|RUBYW_INSTALL_NAME|)) to change the name of the
-    executable without console window if also you want.
-
-(3) Run `((%make%))'
-
-(4) Run `((%make test%))'
-
-(5) Run `((%make DESTDIR=<install_directory> install%))'
-
-    This command will create following directories and install files onto them.
-      * <install_directory>\bin
-      * <install_directory>\lib
-      * <install_directory>\lib\ruby
-      * <install_directory>\lib\ruby\<MAJOR>.<MINOR>
-      * <install_directory>\lib\ruby\<MAJOR>.<MINOR>\<PLATFORM>
-      * <install_directory>\lib\ruby\site_ruby
-      * <install_directory>\lib\ruby\site_ruby\<MAJOR>.<MINOR>
-      * <install_directory>\lib\ruby\site_ruby\<MAJOR>.<MINOR>\<PLATFORM>
-      * <install_directory>\man\man1
-    If Ruby's version is `x.y.z', the ((|<MAJOR>|)) is `x' and the ((|<MINOR>|)) is `y'.
-    The ((|<PLATFORM>|)) is usually `(({i586-bccwin32}))'.
-
-(6) Requires dynamic RTL (cc3250.dll on C++Builder5) and borlndmm.dll (If built with
-    usebormm.lib) to use installed binary. These files are ordinary in bcc32's bin
-    directory.
-
-== Icons
-
-Any icon files(*.ico) in the build directory, directories specified with
-((|icondirs|)) make variable and (({win32})) directory under the ruby
-source directory will be included in DLL or executable files, according
-to their base names.
-    $(RUBY_INSTALL_NAME).ico or ruby.ico   --> $(RUBY_INSTALL_NAME).exe
-    $(RUBYW_INSTALL_NAME).ico or rubyw.ico --> $(RUBYW_INSTALL_NAME).exe
-    the others                             --> $(RUBY_SO_NAME).dll
-
-Although no icons are distributed with the ruby source or in the official 
-site, you can use anything you like. For example, followings are written 
-in Japanese, but you can download at least.
-
-* ((<URL:http://member.nifty.ne.jp/ueivu/rubyico.html>)) or
-  ((<zipped icons|URL:http://member.nifty.ne.jp/ueivu/Ruby_ico.zip>))
-* ((<URL:http://homepage1.nifty.com/a_nakata/ruby/>)) or
-  ((<icon itself|URL:http://homepage1.nifty.com/a_nakata/ruby/RubyIcon.ico>))
-
-== Build examples
-
-* Build on the ruby source directory.
-
-  ex.)
-    ruby source directory:  C:\ruby
-    build directory:        C:\ruby
-    install directory:      C:\usr\local
-
-    C:
-    cd \ruby
-    bcc32\configure
-    make
-    make test
-    make DESTDIR=/usr/local install
-
-* Build on the relative directory from the ruby source directory and CPU type 
-  i386.
-
-  ex.)
-    ruby source directory:  C:\ruby
-    build directory:        C:\ruby\bccwin32
-    install directory:      C:\usr\local
-    CPU                     i386
-    
-    C:
-    cd \ruby
-    mkdir bccwin32
-    cd bccwin32
-    ..\bcc32\configure target i386-bccwin32
-    make
-    make test
-    make DESTDIR=/usr/local install
-
-* Build on the different drive.
-
-  ex.)
-    ruby source directory:  C:\src\ruby
-    build directory:        D:\build\ruby
-    install directory:      C:\usr\local
-
-    D:
-    cd D:\build\ruby
-    C:\src\ruby\bcc32\configure
-    make
-    make test
-    make DESTDIR=C:/usr/local install
-
-== Bugs
-
-You can ((*NOT*)) use a path name contains any white space characters as
-the ruby source directory, this restriction comes from the behavior of
-(({!INCLUDE})) directives of (({MAKE})).
-((- you may call it a bug. -))
-
-=end
diff --git a/bcc32/configure.bat b/bcc32/configure.bat
deleted file mode 100755
index 95575cbc60..0000000000
--- a/bcc32/configure.bat
+++ /dev/null
@@ -1,152 +0,0 @@
-@echo off
-::: Don't set environment variable in batch file other than autoexec.bat
-::: to avoid "Out of environment space" problem on Windows 95/98.
-::: set TMPMAKE=~tmp~.mak
-
-echo> ~tmp~.mak ####
-echo>> ~tmp~.mak conf = %0
-echo>> ~tmp~.mak $(conf:\=/): nul
-echo>> ~tmp~.mak 	@del ~setup~.mak
-echo>> ~tmp~.mak 	@-$(MAKE) -l$(MAKEFLAGS) -f $(@D)setup.mak \
-if exist pathlist.tmp del pathlist.tmp
-if exist confargs.mk del confargs.mk
-:loop
-if "%1" == "" goto :end
-if "%1" == "--prefix" goto :prefix
-if "%1" == "prefix" goto :prefix
-if "%1" == "--srcdir" goto :srcdir
-if "%1" == "srcdir" goto :srcdir
-if "%1" == "--target" goto :target
-if "%1" == "target" goto :target
-if "%1" == "--with-static-linked-ext" goto :extstatic
-if "%1" == "--program-suffix" goto :suffix
-if "%1" == "RUBY_SUFFIX" goto :suffix
-if "%1" == "--program-name" goto :installname
-if "%1" == "--install-name" goto :installname
-if "%1" == "RUBY_INSTALL_NAME" goto :installname
-if "%1" == "--so-name" goto :soname
-if "%1" == "RUBY_SO_NAME" goto :soname
-if "%1" == "--enable-install-doc" goto :enable-rdoc
-if "%1" == "--disable-install-doc" goto :disable-rdoc
-if "%1" == "--extout" goto :extout
-if "%1" == "EXTOUT" goto :extout
-if "%1" == "--path" goto :path
-if "%1" == "-h" goto :help
-if "%1" == "--help" goto :help
-  echo>>confargs.tmp 	%1 \
-  shift
-goto :loop
-:srcdir
-  echo>> ~tmp~.mak 	-Dsrcdir=%2 \
-  echo>>confargs.tmp 	--srcdir=%2 \
-  shift
-  shift
-goto :loop
-:prefix
-  echo>> ~tmp~.mak 	-Dprefix=%2 \
-  echo>>confargs.tmp 	%1=%2 \
-  shift
-  shift
-goto :loop
-:suffix
-  echo>>confargs.mk !ifndef RUBY_SUFFIX
-  echo>>confargs.mk RUBY_SUFFIX = %2
-  echo>>confargs.mk !endif
-  echo>>confargs.tmp 	%1=%2 \
-  shift
-  shift
-goto :loop
-:installname
-  echo>>confargs.mk !ifndef RUBY_INSTALL_NAME
-  echo>>confargs.mk RUBY_INSTALL_NAME = %2
-  echo>>confargs.mk !endif
-  echo>>confargs.tmp 	%1=%2 \
-  shift
-  shift
-goto :loop
-:soname
-  echo>>confargs.mk !ifndef RUBY_SO_NAME
-  echo>>confargs.mk RUBY_SO_NAME = %2
-  echo>>confargs.mk !endif
-  echo>>confargs.tmp 	%1=%2 \
-  shift
-  shift
-goto :loop
-:target
-  echo>> ~tmp~.mak 	%2 \
-  echo>>confargs.tmp 	--target=%2 \
-  shift
-  shift
-goto :loop
-:extstatic
-  echo>>confargs.mk !ifndef EXTSTATIC
-  echo>>confargs.mk EXTSTATIC = static
-  echo>>confargs.mk !endif
-  echo>>confargs.tmp 	%1 \
-  shift
-goto :loop
-:enable-rdoc
-  echo>>confargs.mk !ifndef RDOCTARGET
-  echo>>confargs.mk RDOCTARGET = install-doc
-  echo>>confargs.mk !endif
-  echo>>confargs.tmp 	%1 \
-  shift
-goto :loop
-:disable-rdoc
-  echo>>confargs.mk !ifndef RDOCTARGET
-  echo>>confargs.mk RDOCTARGET = install-nodoc
-  echo>>confargs.mk !endif
-  echo>>confargs.tmp 	%1 \
-  shift
-goto :loop
-:extout
-  echo>>confargs.mk !ifndef EXTOUT
-  echo>>confargs.mk EXTOUT = %2
-  echo>>confargs.mk !endif
-  echo>>confargs.tmp 	%1=%2 \
-  shift
-  shift
-goto :loop
-:path
-  echo>>pathlist.tmp %2;\
-  echo>>confargs.tmp 	%1=%2 \
-  shift
-  shift
-goto :loop
-:help
-  echo Configuration:
-  echo   --help                  display this help
-  echo   --srcdir=DIR            find the sources in DIR [configure dir or `..']
-  echo Installation directories:
-  echo   --prefix=PREFIX         install files in PREFIX (ignored currently)
-  echo System types:
-  echo   --target=TARGET         configure for TARGET [i386-bccwin32]
-  echo Optional Package:
-  echo   --with-static-linked-ext link external modules statically
-  echo   --disable-install-doc   install rdoc indexes during install
-  del *.tmp
-  del ~tmp~.mak
-goto :exit
-:end
-echo>> ~tmp~.mak 	-Dbcc32dir=$(@D)
-if not exist confargs.tmp goto :noconfargs
-    echo>>confargs.mk configure_args = \
-    type>>confargs.mk confargs.tmp
-    echo.>>confargs.mk
-    echo>>confargs.mk ####
-:noconfargs
-if not exist pathlist.tmp goto :nopathlist
-    echo>>confargs.mk pathlist = \
-    type>>confargs.mk pathlist.tmp
-    echo.>>confargs.mk
-    echo>>confargs.mk ####
-    echo>>confargs.mk PATH = $(pathlist:;=/bin;)$(PATH)
-    echo>>confargs.mk INCLUDE = $(pathlist:;=/include;)
-    echo>>confargs.mk LIB = $(pathlist:;=/lib;)
-:nopathlist
-if exist confargs.mk copy confargs.mk ~setup~.mak > nul
-type>>~setup~.mak ~tmp~.mak
-del *.tmp > nul
-del ~tmp~.mak > nul
-make -s -f ~setup~.mak
-:exit
diff --git a/bcc32/mkexports.rb b/bcc32/mkexports.rb
deleted file mode 100755
index dc523e2541..0000000000
--- a/bcc32/mkexports.rb
+++ /dev/null
@@ -1,27 +0,0 @@
-#!./miniruby -s
-
-$name = $library = $description = nil
-
-SYM = {}
-STDIN.reopen(open("nul"))
-ARGV.each do |obj|
-  IO.foreach("|tdump -q -oiPUBDEF -oiPUBD32 #{obj.tr('/', '\\')}") do |l|
-    next unless /(?:PUBDEF|PUBD32)/ =~ l
-    SYM[$1] = true if /'(.*?)'/ =~ l
-  end
-end
-
-exports = []
-if $name
-  exports << "Name " + $name
-elsif $library
-  exports << "Library " + $library
-end
-exports << "Description " + $description.dump if $description
-exports << "EXPORTS" << SYM.keys.sort
-
-if $output
-  open($output, 'w') {|f| f.puts exports.join("\n")}
-else
-  puts exports.join("\n")
-end
diff --git a/bcc32/setup.mak b/bcc32/setup.mak
deleted file mode 100644
index 483292ed51..0000000000
--- a/bcc32/setup.mak
+++ /dev/null
@@ -1,163 +0,0 @@
-# -*- makefile -*-
-
-!if "$(srcdir)" != ""
-bcc32dir = $(srcdir)/bcc32
-!elseif "$(bcc32dir)" == "bcc32/"
-srcdir = .
-!elseif "$(bcc32dir:/bcc32/=)/bcc32/" == "$(bcc32dir)"
-srcdir = $(bcc32dir:/bcc32/=)
-!else
-srcdir = $(bcc32dir)/..
-!endif
-!ifndef prefix
-prefix = /usr
-!endif
-OS = bccwin32
-RT = $(OS)
-BANG = !
-APPEND = echo>>$(MAKEFILE)
-!ifdef MAKEFILE
-MAKE = $(MAKE) -f $(MAKEFILE)
-!else
-MAKEFILE = Makefile
-!endif
-
-all: Makefile
-Makefile: -prologue- -generic- -epilogue-
-i386-$(OS): -prologue- -i386- -epilogue-
-i486-$(OS): -prologue- -i486- -epilogue-
-i586-$(OS): -prologue- -i586- -epilogue-
-i686-$(OS): -prologue- -i686- -epilogue-
-alpha-$(OS): -prologue- -alpha- -epilogue-
-
--prologue-: -basic-vars- -version- -system-vars-
-
--basic-vars-: nul
-	@echo Creating $(MAKEFILE)
-	@type > $(MAKEFILE) &&|
-\#\#\# Makefile for ruby $(OS) \#\#\#
-$(BANG)ifndef srcdir
-srcdir = $(srcdir:\=/)
-$(BANG)endif
-$(BANG)ifndef prefix
-prefix = $(prefix:\=/)
-$(BANG)endif
-|
-!if exist(confargs.mk)
-	@type confargs.mk >> $(MAKEFILE)
-	@del confargs.mk
-!endif
-
--system-vars-: -runtime- -bormm-
-
--bormm-: nul
-	@-ilink32 -q -Gn -x usebormm.lib > nul
-	@-if exist usebormm.tds $(APPEND) MEMLIB = usebormm.lib
-	@if exist usebormm.* del usebormm.*
-
--osname-: nul
-	@echo OS =  >>$(MAKEFILE)
-
--runtime-: nul
-	type > conftest.c &&|
-\#include <stdio.h>
-int main(){printf("");return 0;}
-|
-	bcc32 conftest.c cw32i.lib > nul
-	tdump conftest.exe < nul > conftest.i
-	grep "^Imports from CC" conftest.i > conftest.c
-	cpp32 -P- -DFile=\# -DImports=RTNAME -Dfrom== conftest.c > nul
-	$(MAKE) > nul -DBANG=$(BANG) -f &&|
--runtime-: nul
-$(BANG)include conftest.i
-RT = $$(RTNAME:.DLL=)
-OS = $$(RT:CC32=)
--runtime-:
-	del conftest.*
-$(BANG)if "$$(OS)" == "50"
-	echo OS = bccwin32 >> $(MAKEFILE)
-$(BANG)else
-	echo OS = bccwin32_$$(OS) >> $(MAKEFILE)
-$(BANG)endif
-|
-	@echo RT = $$(OS) >> $(MAKEFILE)
-
--version-: nul
-	@cpp32 -I$(srcdir) -P- -o$(MAKEFILE) > nul &&|
-\#include "version.h"
-MAJOR = RUBY_VERSION_MAJOR
-MINOR = RUBY_VERSION_MINOR
-TEENY = RUBY_VERSION_TEENY
-
-BORLANDC = __BORLANDC__
-|
-	@$(MAKE) > nul -DBANG=$(BANG) -f &&,
--version-: nul
-$(BANG)include $(MAKEFILE)
-$(BANG)include $(MAKEFILE).i
--version-:
-	@del $(MAKEFILE).i
-	@type >> $(MAKEFILE) &&|
-MAJOR = $$(MAJOR)
-MINOR = $$(MINOR)
-TEENY = $$(TEENY)
-BORLANDC = $$(BORLANDC)
-|
-,
-
--generic-: nul
-!if defined(PROCESSOR_ARCHITECTURE) ||  defined(PROCESSOR_LEVEL)
-	@type >> $(MAKEFILE) &&|
-!if defined(PROCESSOR_ARCHITECTURE)
-$(BANG)ifndef PROCESSOR_ARCHITECTURE
-PROCESSOR_ARCHITECTURE = $(PROCESSOR_ARCHITECTURE)
-$(BANG)endif
-!endif
-!if defined(PROCESSOR_LEVEL)
-$(BANG)ifndef PROCESSOR_LEVEL
-PROCESSOR_LEVEL = $(PROCESSOR_LEVEL)
-$(BANG)endif
-!endif
-|
-!endif
-
--alpha-: nul
-	@$(APPEND) !ifndef PROCESSOR_ARCHITECTURE
-	@$(APPEND) PROCESSOR_ARCHITECTURE = alpha
-	@$(APPEND) !endif
--ix86-: nul
-	@$(APPEND) !ifndef PROCESSOR_ARCHITECTURE
-	@$(APPEND) PROCESSOR_ARCHITECTURE = x86
-	@$(APPEND) !endif
-
--i386-: -ix86-
-	@$(APPEND) !ifndef PROCESSOR_LEVEL
-	@$(APPEND) PROCESSOR_LEVEL = 3
-	@$(APPEND) !endif
--i486-: -ix86-
-	@$(APPEND) !ifndef PROCESSOR_LEVEL
-	@$(APPEND) PROCESSOR_LEVEL = 4
-	@$(APPEND) !endif
--i586-: -ix86-
-	@$(APPEND) !ifndef PROCESSOR_LEVEL
-	@$(APPEND) PROCESSOR_LEVEL = 5
-	@$(APPEND) !endif
--i686-: -ix86-
-	@$(APPEND) !ifndef PROCESSOR_LEVEL
-	@$(APPEND) PROCESSOR_LEVEL = 6
-	@$(APPEND) !endif
-
--epilogue-: nul
-	@type >> $(MAKEFILE) &&|
-
-\# RUBY_INSTALL_NAME = ruby
-\# RUBY_SO_NAME = $$(RT)-$$(RUBY_INSTALL_NAME)$$(MAJOR)$$(MINOR)
-\# CFLAGS = -q $$(DEBUGFLAGS) $$(OPTFLAGS) $$(PROCESSOR_FLAG) -w- -wsus -wcpt -wdup -wext -wrng -wrpt -wzdi
-\# CPPFLAGS = -I. -I$$(srcdir) -I$$(srcdir)/missing -DLIBRUBY_SO=\"$$(LIBRUBY_SO)\"
-\# STACK = 0x2000000
-\# LDFLAGS = -S:$$(STACK)
-\# RFLAGS = $$(iconinc)
-\# EXTLIBS = cw32.lib import32.lib user32.lib kernel32.lib
-$(BANG)include $$(srcdir)/bcc32/Makefile.sub
-|
-	@echo type "`$(MAKE)'" to make ruby for $(OS).
diff --git a/benchmark/bm_app_answer.rb b/benchmark/bm_app_answer.rb
new file mode 100644
index 0000000000..3cd8a8fd37
--- /dev/null
+++ b/benchmark/bm_app_answer.rb
@@ -0,0 +1,15 @@
+def ack(m, n)
+  if m == 0 then
+    n + 1
+  elsif n == 0 then
+    ack(m - 1, 1)
+  else
+    ack(m - 1, ack(m, n - 1))
+  end
+end
+
+def the_answer_to_life_the_universe_and_everything
+  (ack(3,7).to_s.split(//).inject(0){|s,x| s+x.to_i}.to_s + "2" ).to_i
+end
+
+answer = the_answer_to_life_the_universe_and_everything
diff --git a/benchmark/bm_app_aobench.rb b/benchmark/bm_app_aobench.rb
new file mode 100644
index 0000000000..2bd6acfaf8
--- /dev/null
+++ b/benchmark/bm_app_aobench.rb
@@ -0,0 +1,291 @@
+# AO render benchmark
+# Original program (C) Syoyo Fujita in Javascript (and other languages)
+#      https://code.google.com/p/aobench/
+# Ruby(yarv2llvm) version by Hideki Miura
+#
+
+IMAGE_WIDTH = 256
+IMAGE_HEIGHT = 256
+NSUBSAMPLES = 2
+NAO_SAMPLES = 8
+
+class Vec
+  def initialize(x, y, z)
+    @x = x
+    @y = y
+    @z = z
+  end
+
+  attr_accessor :x, :y, :z
+
+  def vadd(b)
+    Vec.new(@x + b.x, @y + b.y, @z + b.z)
+  end
+
+  def vsub(b)
+    Vec.new(@x - b.x, @y - b.y, @z - b.z)
+  end
+
+  def vcross(b)
+    Vec.new(@y * b.z - @z * b.y,
+            @z * b.x - @x * b.z,
+            @x * b.y - @y * b.x)
+  end
+
+  def vdot(b)
+    @x * b.x + @y * b.y + @z * b.z
+  end
+
+  def vlength
+    Math.sqrt(@x * @x + @y * @y + @z * @z)
+  end
+
+  def vnormalize
+    len = vlength
+    v = Vec.new(@x, @y, @z)
+    if len > 1.0e-17 then
+      v.x = v.x / len
+      v.y = v.y / len
+      v.z = v.z / len
+    end
+    v
+  end
+end
+
+
+class Sphere
+  def initialize(center, radius)
+    @center = center
+    @radius = radius
+  end
+
+  attr_reader :center, :radius
+
+  def intersect(ray, isect)
+    rs = ray.org.vsub(@center)
+    b = rs.vdot(ray.dir)
+    c = rs.vdot(rs) - (@radius * @radius)
+    d = b * b - c
+    if d > 0.0 then
+      t = - b - Math.sqrt(d)
+
+      if t > 0.0 and t < isect.t then
+        isect.t = t
+        isect.hit = true
+        isect.pl = Vec.new(ray.org.x + ray.dir.x * t,
+                          ray.org.y + ray.dir.y * t,
+                          ray.org.z + ray.dir.z * t)
+        n = isect.pl.vsub(@center)
+        isect.n = n.vnormalize
+      else
+        0.0
+      end
+    end
+    nil
+  end
+end
+
+class Plane
+  def initialize(p, n)
+    @p = p
+    @n = n
+  end
+
+  def intersect(ray, isect)
+    d = -@p.vdot(@n)
+    v = ray.dir.vdot(@n)
+    v0 = v
+    if v < 0.0 then
+      v0 = -v
+    end
+    if v0 < 1.0e-17 then
+      return
+    end
+
+    t = -(ray.org.vdot(@n) + d) / v
+
+    if t > 0.0 and t < isect.t then
+      isect.hit = true
+      isect.t = t
+      isect.n = @n
+      isect.pl = Vec.new(ray.org.x + t * ray.dir.x,
+                        ray.org.y + t * ray.dir.y,
+                        ray.org.z + t * ray.dir.z)
+    end
+    nil
+  end
+end
+
+class Ray
+  def initialize(org, dir)
+    @org = org
+    @dir = dir
+  end
+
+  attr_accessor :org, :dir
+end
+
+class Isect
+  def initialize
+    @t = 10000000.0
+    @hit = false
+    @pl = Vec.new(0.0, 0.0, 0.0)
+    @n = Vec.new(0.0, 0.0, 0.0)
+  end
+
+  attr_accessor :t, :hit, :pl, :n
+end
+
+def clamp(f)
+  i = f * 255.5
+  if i > 255.0 then
+    i = 255.0
+  end
+  if i < 0.0 then
+    i = 0.0
+  end
+  i.to_i
+end
+
+def otherBasis(basis, n)
+  basis[2] = Vec.new(n.x, n.y, n.z)
+  basis[1] = Vec.new(0.0, 0.0, 0.0)
+
+  if n.x < 0.6 and n.x > -0.6 then
+    basis[1].x = 1.0
+  elsif n.y < 0.6 and n.y > -0.6 then
+    basis[1].y = 1.0
+  elsif n.z < 0.6 and n.z > -0.6 then
+    basis[1].z = 1.0
+  else
+    basis[1].x = 1.0
+  end
+
+  basis[0] = basis[1].vcross(basis[2])
+  basis[0] = basis[0].vnormalize
+
+  basis[1] = basis[2].vcross(basis[0])
+  basis[1] = basis[1].vnormalize
+end
+
+class Scene
+  def initialize
+    @spheres = Array.new
+    @spheres[0] = Sphere.new(Vec.new(-2.0, 0.0, -3.5), 0.5)
+    @spheres[1] = Sphere.new(Vec.new(-0.5, 0.0, -3.0), 0.5)
+    @spheres[2] = Sphere.new(Vec.new(1.0, 0.0, -2.2), 0.5)
+    @plane = Plane.new(Vec.new(0.0, -0.5, 0.0), Vec.new(0.0, 1.0, 0.0))
+  end
+
+  def ambient_occlusion(isect)
+    basis = Array.new
+    otherBasis(basis, isect.n)
+
+    ntheta    = NAO_SAMPLES
+    nphi      = NAO_SAMPLES
+    eps       = 0.0001
+    occlusion = 0.0
+
+    p0 = Vec.new(isect.pl.x + eps * isect.n.x,
+                isect.pl.y + eps * isect.n.y,
+                isect.pl.z + eps * isect.n.z)
+    nphi.times do |j|
+      ntheta.times do |i|
+        r = rand
+        phi = 2.0 * 3.14159265 * rand
+        x = Math.cos(phi) * Math.sqrt(1.0 - r)
+        y = Math.sin(phi) * Math.sqrt(1.0 - r)
+        z = Math.sqrt(r)
+
+        rx = x * basis[0].x + y * basis[1].x + z * basis[2].x
+        ry = x * basis[0].y + y * basis[1].y + z * basis[2].y
+        rz = x * basis[0].z + y * basis[1].z + z * basis[2].z
+
+        raydir = Vec.new(rx, ry, rz)
+        ray = Ray.new(p0, raydir)
+
+        occisect = Isect.new
+        @spheres[0].intersect(ray, occisect)
+        @spheres[1].intersect(ray, occisect)
+        @spheres[2].intersect(ray, occisect)
+        @plane.intersect(ray, occisect)
+        if occisect.hit then
+          occlusion = occlusion + 1.0
+        else
+          0.0
+        end
+      end
+    end
+
+    occlusion = (ntheta.to_f * nphi.to_f - occlusion) / (ntheta.to_f * nphi.to_f)
+
+    Vec.new(occlusion, occlusion, occlusion)
+  end
+
+  def render(w, h, nsubsamples)
+    cnt = 0
+    nsf = nsubsamples.to_f
+    h.times do |y|
+      w.times do |x|
+        rad = Vec.new(0.0, 0.0, 0.0)
+
+        # Subsampling
+        nsubsamples.times do |v|
+          nsubsamples.times do |u|
+
+            cnt = cnt + 1
+            wf = w.to_f
+            hf = h.to_f
+            xf = x.to_f
+            yf = y.to_f
+            uf = u.to_f
+            vf = v.to_f
+
+            px = (xf + (uf / nsf) - (wf / 2.0)) / (wf / 2.0)
+            py = -(yf + (vf / nsf) - (hf / 2.0)) / (hf / 2.0)
+
+            eye = Vec.new(px, py, -1.0).vnormalize
+
+            ray = Ray.new(Vec.new(0.0, 0.0, 0.0), eye)
+
+            isect = Isect.new
+            @spheres[0].intersect(ray, isect)
+            @spheres[1].intersect(ray, isect)
+            @spheres[2].intersect(ray, isect)
+            @plane.intersect(ray, isect)
+            if isect.hit then
+              col = ambient_occlusion(isect)
+              rad.x = rad.x + col.x
+              rad.y = rad.y + col.y
+              rad.z = rad.z + col.z
+            end
+          end
+        end
+
+        r = rad.x / (nsf * nsf)
+        g = rad.y / (nsf * nsf)
+        b = rad.z / (nsf * nsf)
+        printf("%c", clamp(r))
+        printf("%c", clamp(g))
+        printf("%c", clamp(b))
+      end
+      nil
+    end
+
+    nil
+  end
+end
+
+alias printf_orig printf
+def printf *args
+end
+
+# File.open("ao.ppm", "w") do |fp|
+  printf("P6\n")
+  printf("%d %d\n", IMAGE_WIDTH, IMAGE_HEIGHT)
+  printf("255\n", IMAGE_WIDTH, IMAGE_HEIGHT)
+  Scene.new.render(IMAGE_WIDTH, IMAGE_HEIGHT, NSUBSAMPLES)
+# end
+
+undef printf
+alias printf printf_orig
diff --git a/benchmark/bm_app_erb.rb b/benchmark/bm_app_erb.rb
new file mode 100644
index 0000000000..77c66a7949
--- /dev/null
+++ b/benchmark/bm_app_erb.rb
@@ -0,0 +1,26 @@
+#
+# Create many HTML strings with ERB.
+#
+
+require 'erb'
+
+data = DATA.read
+max = 15_000
+title = "hello world!"
+content = "hello world!\n" * 10
+
+max.times{
+  ERB.new(data).result(binding)
+}
+
+__END__
+
+<html>
+  <head> <%= title %> </head>
+  <body>
+    <h1> <%= title %> </h1>
+    <p>
+      <%= content %>
+    </p>
+  </body>
+</html>
diff --git a/benchmark/bm_app_factorial.rb b/benchmark/bm_app_factorial.rb
new file mode 100644
index 0000000000..45f471dfdb
--- /dev/null
+++ b/benchmark/bm_app_factorial.rb
@@ -0,0 +1,11 @@
+def fact(n)
+  if(n > 1)
+    n * fact(n-1)
+  else
+    1
+  end
+end
+
+100.times {
+  fact(5000)
+}
diff --git a/benchmark/bm_app_fib.rb b/benchmark/bm_app_fib.rb
new file mode 100644
index 0000000000..34a7b2e725
--- /dev/null
+++ b/benchmark/bm_app_fib.rb
@@ -0,0 +1,10 @@
+def fib n
+  if n < 3
+    1
+  else
+    fib(n-1) + fib(n-2)
+  end
+end
+
+fib(34)
+
diff --git a/benchmark/bm_app_lc_fizzbuzz.rb b/benchmark/bm_app_lc_fizzbuzz.rb
new file mode 100644
index 0000000000..f09574bbeb
--- /dev/null
+++ b/benchmark/bm_app_lc_fizzbuzz.rb
@@ -0,0 +1,52 @@
+#
+# FizzBuzz program using only lambda calculus
+#
+# This program is quoted from
+#   "Understanding Computation" by Tom Stuart
+#   http://computationbook.com/
+#
+# You can understand why this program works fine by reading this book.
+#
+
+solution = -> k { -> f { -> f { -> x { f[-> y { x[x][y] }] }[-> x { f[-> y { x[x][y] }] }] }[-> f { -> l { -> x { -> g { -> b { b }[-> p { p[-> x { -> y { x } }] }[l]][x][-> y { g[f[-> l { -> p { p[-> x { -> y { y } }] }[-> p { p[-> x { -> y { y } }] }[l]] }[l]][x][g]][-> l { -> p { p[-> x { -> y { x } }] }[-> p { p[-> x { -> y { y } }] }[l]] }[l]][y] }] } } } }][k][-> x { -> y { -> f { f[x][y] } } }[-> x { -> y { x } }][-> x { -> y { x } }]][-> l { -> x { -> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[l][f[x]] } }] } }[-> f { -> x { f[-> y { x[x][y] }] }[-> x { f[-> y { x[x][y] }] }] }[-> f { -> m { -> n { -> b { b }[-> m { -> n { -> n { n[-> x { -> x { -> y { y } } }][-> x { -> y { x } }] }[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]] } }[m][n]][-> x { -> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[f[-> n { -> p { -> x { p[n[p][x]] } } }[m]][n]][m][x] }][-> x { -> y { -> f { f[x][y] } } }[-> x { -> y { x } }][-> x { -> y { x } }]] } } }][-> p { -> x { p[x] } }][-> p { -> x { p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[x]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]] } }]][-> n { -> b { b }[-> n { n[-> x { -> x { -> y { y } } }][-> x { -> y { x } }] }[-> f { -> x { f[-> y { x[x][y] }] }[-> x { f[-> y { x[x][y] }] }] }[-> f { -> m { -> n { -> b { b }[-> m { -> n { -> n { n[-> x { -> x { -> y { y } } }][-> x { -> y { x } }] }[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]] } }[n][m]][-> x { f[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]][n][x] }][m] } } }][n][-> p { -> x { p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[x]]]]]]]]]]]]]]] } }]]][-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> x { -> y { -> f { f[x][y] } } }[-> x { -> y { x } }][-> x { -> y { x } }]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]]][-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]][-> b { b }[-> n { n[-> x { -> x { -> y { y } } }][-> x { -> y { x } }] }[-> f { -> x { f[-> y { x[x][y] }] }[-> x { f[-> y { x[x][y] }] }] }[-> f { -> m { -> n { -> b { b }[-> m { -> n { -> n { n[-> x { -> x { -> y { y } } }][-> x { -> y { x } }] }[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]] } }[n][m]][-> x { f[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]][n][x] }][m] } } }][n][-> p { -> x { p[p[p[x]]] } }]]][-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> x { -> y { -> f { f[x][y] } } }[-> x { -> y { x } }][-> x { -> y { x } }]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]][-> b { b }[-> n { n[-> x { -> x { -> y { y } } }][-> x { -> y { x } }] }[-> f { -> x { f[-> y { x[x][y] }] }[-> x { f[-> y { x[x][y] }] }] }[-> f { -> m { -> n { -> b { b }[-> m { -> n { -> n { n[-> x { -> x { -> y { y } } }][-> x { -> y { x } }] }[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]] } }[n][m]][-> x { f[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]][n][x] }][m] } } }][n][-> p { -> x { p[p[p[p[p[x]]]]] } }]]][-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> x { -> y { -> f { f[x][y] } } }[-> x { -> y { x } }][-> x { -> y { x } }]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]]]][-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> n { -> p { -> x { p[n[p][x]] } } }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]]]][-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]][-> f { -> x { f[-> y { x[x][y] }] }[-> x { f[-> y { x[x][y] }] }] }[-> f { -> n { -> l { -> x { -> f { -> x { f[-> y { x[x][y] }] }[-> x { f[-> y { x[x][y] }] }] }[-> f { -> l { -> x { -> g { -> b { b }[-> p { p[-> x { -> y { x } }] }[l]][x][-> y { g[f[-> l { -> p { p[-> x { -> y { y } }] }[-> p { p[-> x { -> y { y } }] }[l]] }[l]][x][g]][-> l { -> p { p[-> x { -> y { x } }] }[-> p { p[-> x { -> y { y } }] }[l]] }[l]][y] }] } } } }][l][-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }[-> x { -> y { -> f { f[x][y] } } }[-> x { -> y { x } }][-> x { -> y { x } }]][x]][-> l { -> x { -> x { -> y { -> f { f[x][y] } } }[-> x { -> y { y } }][-> x { -> y { -> f { f[x][y] } } }[x][l]] } }] } }[-> b { b }[-> m { -> n { -> n { n[-> x { -> x { -> y { y } } }][-> x { -> y { x } }] }[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]] } }[n][-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }[-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]]][-> x { -> y { -> f { f[x][y] } } }[-> x { -> y { x } }][-> x { -> y { x } }]][-> x { f[-> f { -> x { f[-> y { x[x][y] }] }[-> x { f[-> y { x[x][y] }] }] }[-> f { -> m { -> n { -> b { b }[-> m { -> n { -> n { n[-> x { -> x { -> y { y } } }][-> x { -> y { x } }] }[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]] } }[n][m]][-> x { -> n { -> p { -> x { p[n[p][x]] } } }[f[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]][n]][x] }][-> p { -> x { x } }] } } }][n][-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]][x] }]][-> f { -> x { f[-> y { x[x][y] }] }[-> x { f[-> y { x[x][y] }] }] }[-> f { -> m { -> n { -> b { b }[-> m { -> n { -> n { n[-> x { -> x { -> y { y } } }][-> x { -> y { x } }] }[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]] } }[n][m]][-> x { f[-> m { -> n { n[-> n { -> p { p[-> x { -> y { x } }] }[n[-> p { -> x { -> y { -> f { f[x][y] } } }[-> p { p[-> x { -> y { y } }] }[p]][-> n { -> p { -> x { p[n[p][x]] } } }[-> p { p[-> x { -> y { y } }] }[p]]] }][-> x { -> y { -> f { f[x][y] } } }[-> p { -> x { x } }][-> p { -> x { x } }]]] }][m] } }[m][n]][n][x] }][m] } } }][n][-> m { -> n { n[-> m { -> n { n[-> n { -> p { -> x { p[n[p][x]] } } }][m] } }[m]][-> p { -> x { x } }] } }[-> p { -> x { p[p[x]] } }][-> p { -> x { p[p[p[p[p[x]]]]] } }]]] } }][n]]]] }]
+
+FIRST     = -> l { LEFT[RIGHT[l]] }
+IF        = -> b { b }
+LEFT      = -> p { p[-> x { -> y { x } } ] }
+RIGHT     = -> p { p[-> x { -> y { y } } ] }
+IS_EMPTY  = LEFT
+REST      = -> l { RIGHT[RIGHT[l]] }
+
+def to_integer(proc)
+  proc[-> n { n + 1 }][0]
+end
+
+def to_boolean(proc)
+  IF[proc][true][false]
+end
+
+def to_array(proc)
+  array = []
+
+  until to_boolean(IS_EMPTY[proc])
+    array.push(FIRST[proc])
+    proc = REST[proc]
+  end
+
+  array
+end
+
+def to_char(c)
+  '0123456789BFiuz'.slice(to_integer(c))
+end
+
+def to_string(s)
+  to_array(s).map { |c| to_char(c) }.join
+end
+
+answer = to_array(solution).map do |p|
+  to_string(p)
+end
+
+answer_ary = answer.to_a
+# puts answer_ary
diff --git a/benchmark/bm_app_mandelbrot.rb b/benchmark/bm_app_mandelbrot.rb
new file mode 100644
index 0000000000..801b75e8e2
--- /dev/null
+++ b/benchmark/bm_app_mandelbrot.rb
@@ -0,0 +1,23 @@
+require 'complex'
+
+def mandelbrot? z
+  i = 0
+  while i<100
+    i += 1
+    z = z * z
+    return false if z.abs > 2
+  end
+  true
+end
+
+ary = []
+
+(0..1000).each{|dx|
+  (0..1000).each{|dy|
+    x = dx / 50.0
+    y = dy / 50.0
+    c = Complex(x, y)
+    ary << c if mandelbrot?(c)
+  }
+}
+
diff --git a/benchmark/bm_app_pentomino.rb b/benchmark/bm_app_pentomino.rb
new file mode 100644
index 0000000000..59c63f358e
--- /dev/null
+++ b/benchmark/bm_app_pentomino.rb
@@ -0,0 +1,259 @@
+#!/usr/local/bin/ruby
+# This program is contributed by Shin Nishiyama
+
+
+# modified by K.Sasada
+
+NP = 5
+ROW = 8 + NP
+COL = 8
+
+$p = []
+$b = []
+$no = 0
+
+def piece(n, a, nb)
+  nb.each{|x|
+    a[n] = x
+    if n == NP-1
+      $p << [a.sort]
+    else
+      nbc=nb.dup
+      [-ROW, -1, 1, ROW].each{|d|
+        if x+d > 0 and not a.include?(x+d) and not nbc.include?(x+d)
+          nbc << x+d
+        end
+      }
+      nbc.delete x
+      piece(n+1,a[0..n],nbc)
+    end
+  }
+end
+
+def kikaku(a)
+  a.collect {|x| x - a[0]}
+end
+def ud(a)
+  kikaku(a.collect {|x| ((x+NP)%ROW)-ROW*((x+NP)/ROW) }.sort)
+end
+def rl(a)
+  kikaku(a.collect {|x| ROW*((x+NP)/ROW)+ROW-((x+NP)%ROW)}.sort)
+end
+def xy(a)
+  kikaku(a.collect {|x| ROW*((x+NP)%ROW) + (x+NP)/ROW }.sort)
+end
+
+def mkpieces
+  piece(0,[],[0])
+  $p.each do |a|
+    a0 = a[0]
+    a[1] = ud(a0)
+    a[2] = rl(a0)
+    a[3] = ud(rl(a0))
+    a[4] = xy(a0)
+    a[5] = ud(xy(a0))
+    a[6] = rl(xy(a0))
+    a[7] = ud(rl(xy(a0)))
+    a.sort!
+    a.uniq!
+  end
+  $p.uniq!.sort! {|x,y| x[0] <=> y[0] }
+end
+
+def mkboard
+  (0...ROW*COL).each{|i|
+    if i % ROW >= ROW-NP
+      $b[i] = -2
+    else
+      $b[i] = -1
+    end
+    $b[3*ROW+3]=$b[3*ROW+4]=$b[4*ROW+3]=$b[4*ROW+4]=-2
+  }
+end
+
+def pboard
+  return # skip print
+  print "No. #$no\n"
+  (0...COL).each{|i|
+    print "|"
+    (0...ROW-NP).each{|j|
+      x = $b[i*ROW+j]
+      if x < 0
+        print "..|"
+      else
+        printf "%2d|",x+1
+      end
+    }
+    print "\n"
+  }
+  print "\n"
+end
+
+$pnum=[]
+def setpiece(a,pos)
+  if a.length == $p.length then
+    $no += 1
+    pboard
+    return
+  end
+  while $b[pos] != -1
+    pos += 1
+  end
+  ($pnum - a).each do |i|
+    $p[i].each do |x|
+      f = 0
+      x.each{|s|
+        if $b[pos+s] != -1
+          f=1
+          break
+        end
+      }
+      if f == 0 then
+        x.each{|s|
+          $b[pos+s] = i
+        }
+        a << i
+        setpiece(a.dup, pos)
+        a.pop
+        x.each{|s|
+          $b[pos+s] = -1
+        }
+      end
+    end
+  end
+end
+
+mkpieces
+mkboard
+$p[4] = [$p[4][0]]
+$pnum = (0...$p.length).to_a
+setpiece([],0)
+
+
+__END__
+
+# original
+
+NP = 5
+ROW = 8 + NP
+COL = 8
+
+$p = []
+$b = []
+$no = 0
+
+def piece(n,a,nb)
+  for x in nb
+    a[n] = x
+    if n == NP-1
+      $p << [a.sort]
+    else
+      nbc=nb.dup
+      for d in [-ROW, -1, 1, ROW]
+        if x+d > 0 and not a.include?(x+d) and not nbc.include?(x+d)
+          nbc << x+d
+        end
+      end
+      nbc.delete x
+      piece(n+1,a[0..n],nbc)
+    end
+  end
+end
+
+def kikaku(a)
+  a.collect {|x| x - a[0]}
+end
+def ud(a)
+  kikaku(a.collect {|x| ((x+NP)%ROW)-ROW*((x+NP)/ROW) }.sort)
+end
+def rl(a)
+  kikaku(a.collect {|x| ROW*((x+NP)/ROW)+ROW-((x+NP)%ROW)}.sort)
+end
+def xy(a)
+  kikaku(a.collect {|x| ROW*((x+NP)%ROW) + (x+NP)/ROW }.sort)
+end
+
+def mkpieces
+  piece(0,[],[0])
+  $p.each do |a|
+    a0 = a[0]
+    a[1] = ud(a0)
+    a[2] = rl(a0)
+    a[3] = ud(rl(a0))
+    a[4] = xy(a0)
+    a[5] = ud(xy(a0))
+    a[6] = rl(xy(a0))
+    a[7] = ud(rl(xy(a0)))
+    a.sort!
+    a.uniq!
+  end
+  $p.uniq!.sort! {|x,y| x[0] <=> y[0] }
+end
+
+def mkboard
+  for i in 0...ROW*COL
+    if i % ROW >= ROW-NP
+      $b[i] = -2
+    else
+      $b[i] = -1
+    end
+    $b[3*ROW+3]=$b[3*ROW+4]=$b[4*ROW+3]=$b[4*ROW+4]=-2
+  end
+end
+
+def pboard
+  print "No. #$no\n"
+  for i in 0...COL
+    print "|"
+    for j in 0...ROW-NP
+      x = $b[i*ROW+j]
+      if x < 0
+        print "..|"
+      else
+        printf "%2d|",x+1
+      end
+    end
+    print "\n"
+  end
+  print "\n"
+end
+
+$pnum=[]
+def setpiece(a,pos)
+  if a.length == $p.length then
+    $no += 1
+    pboard
+    return
+  end
+  while $b[pos] != -1
+    pos += 1
+  end
+  ($pnum - a).each do |i|
+    $p[i].each do |x|
+      f = 0
+      for s in x do
+        if $b[pos+s] != -1
+          f=1
+          break
+        end
+      end
+      if f == 0 then
+        for s in x do
+          $b[pos+s] = i
+        end
+        a << i
+        setpiece(a.dup, pos)
+        a.pop
+        for s in x do
+          $b[pos+s] = -1
+        end
+      end
+    end
+  end
+end
+
+mkpieces
+mkboard
+$p[4] = [$p[4][0]]
+$pnum = (0...$p.length).to_a
+setpiece([],0)
diff --git a/benchmark/bm_app_raise.rb b/benchmark/bm_app_raise.rb
new file mode 100644
index 0000000000..5db8f95d50
--- /dev/null
+++ b/benchmark/bm_app_raise.rb
@@ -0,0 +1,8 @@
+i = 0
+while i<300000
+  i += 1
+  begin
+    raise
+  rescue
+  end
+end
diff --git a/benchmark/bm_app_strconcat.rb b/benchmark/bm_app_strconcat.rb
new file mode 100644
index 0000000000..7eed7c1aed
--- /dev/null
+++ b/benchmark/bm_app_strconcat.rb
@@ -0,0 +1,5 @@
+i = 0
+while i<2_000_000
+  "#{1+1} #{1+1} #{1+1}"
+  i += 1
+end
diff --git a/benchmark/bm_app_tak.rb b/benchmark/bm_app_tak.rb
new file mode 100644
index 0000000000..efe5380f4e
--- /dev/null
+++ b/benchmark/bm_app_tak.rb
@@ -0,0 +1,13 @@
+
+def tak x, y, z
+  unless y < x
+    z
+  else
+    tak( tak(x-1, y, z),
+         tak(y-1, z, x),
+         tak(z-1, x, y))
+  end
+end
+
+tak(18, 9, 0)
+
diff --git a/benchmark/bm_app_tarai.rb b/benchmark/bm_app_tarai.rb
new file mode 100644
index 0000000000..4c146f5ccf
--- /dev/null
+++ b/benchmark/bm_app_tarai.rb
@@ -0,0 +1,10 @@
+def tarai( x, y, z )
+  if x <= y
+  then y
+  else tarai(tarai(x-1, y, z),
+             tarai(y-1, z, x),
+             tarai(z-1, x, y))
+  end
+end
+
+tarai(12, 6, 0)
diff --git a/benchmark/bm_app_uri.rb b/benchmark/bm_app_uri.rb
new file mode 100644
index 0000000000..586edfd5dc
--- /dev/null
+++ b/benchmark/bm_app_uri.rb
@@ -0,0 +1,8 @@
+require 'uri'
+
+100_000.times{
+  uri = URI.parse('http://www.ruby-lang.org')
+  uri.scheme
+  uri.host
+  uri.port
+}
diff --git a/benchmark/bm_array_shift.rb b/benchmark/bm_array_shift.rb
new file mode 100644
index 0000000000..798bb9e3f4
--- /dev/null
+++ b/benchmark/bm_array_shift.rb
@@ -0,0 +1,14 @@
+require 'benchmark'
+
+Benchmark.bm do |x|
+  [10_000,1_000_000,100_000_000].each do |n|
+    ary = Array.new(n,0)
+    GC.start
+    x.report("#{n}:shift"){ ary.shift }
+    (0..4).each do |i|
+      ary = Array.new(n,0)
+      GC.start
+      x.report("#{n}:shift(#{i})"){ ary.shift(i) }
+    end
+  end
+end
diff --git a/benchmark/bm_hash_aref_dsym.rb b/benchmark/bm_hash_aref_dsym.rb
new file mode 100644
index 0000000000..af4f8c36d4
--- /dev/null
+++ b/benchmark/bm_hash_aref_dsym.rb
@@ -0,0 +1,4 @@
+h = {}
+syms = ('a'..'z').map { |s| s.to_sym }
+syms.each { |s| h[s] = 1 }
+200_000.times { syms.each { |s| h[s] } }
diff --git a/benchmark/bm_hash_aref_dsym_long.rb b/benchmark/bm_hash_aref_dsym_long.rb
new file mode 100644
index 0000000000..9d7759379e
--- /dev/null
+++ b/benchmark/bm_hash_aref_dsym_long.rb
@@ -0,0 +1,21 @@
+# [ruby-core:70129] [Bug #11396]
+collection_size = 200000
+sample_size = 10000
+
+values = (1..collection_size).to_a.map do |x|
+  "THIS IS A LONGER STRING THAT IS ALSO UNIQUE #{x}"
+end
+
+symbol_hash = {}
+
+values.each do |x|
+  symbol_hash[x.to_sym] = 1
+end
+
+# use the same samples each time to minimize deviations
+rng = Random.new(0)
+symbol_sample_array = values.sample(sample_size, random: rng).map(&:to_sym)
+
+3000.times do
+  symbol_sample_array.each { |x| symbol_hash[x] }
+end
diff --git a/benchmark/bm_hash_aref_fix.rb b/benchmark/bm_hash_aref_fix.rb
new file mode 100644
index 0000000000..1346890582
--- /dev/null
+++ b/benchmark/bm_hash_aref_fix.rb
@@ -0,0 +1,4 @@
+h = {}
+nums = (1..26).to_a
+nums.each { |i| h[i] = i }
+200_000.times { nums.each { |s| h[s] } }
diff --git a/benchmark/bm_hash_aref_flo.rb b/benchmark/bm_hash_aref_flo.rb
new file mode 100644
index 0000000000..2217274c82
--- /dev/null
+++ b/benchmark/bm_hash_aref_flo.rb
@@ -0,0 +1,4 @@
+h = {}
+strs = [*1..10000].map! {|i| i.fdiv(10)}
+strs.each { |s| h[s] = s }
+50.times { strs.each { |s| h[s] } }
diff --git a/benchmark/bm_hash_aref_miss.rb b/benchmark/bm_hash_aref_miss.rb
new file mode 100644
index 0000000000..b0913dd4bb
--- /dev/null
+++ b/benchmark/bm_hash_aref_miss.rb
@@ -0,0 +1,5 @@
+h = {}
+strs = ('a'..'z').to_a.map!(&:freeze)
+strs.each { |s| h[s] = s }
+strs = ('A'..'Z').to_a
+200_000.times { strs.each { |s| h[s] } }
diff --git a/benchmark/bm_hash_aref_str.rb b/benchmark/bm_hash_aref_str.rb
new file mode 100644
index 0000000000..19439b061b
--- /dev/null
+++ b/benchmark/bm_hash_aref_str.rb
@@ -0,0 +1,4 @@
+h = {}
+strs = ('a'..'z').to_a.map!(&:freeze)
+strs.each { |s| h[s] = s }
+200_000.times { strs.each { |s| h[s] } }
diff --git a/benchmark/bm_hash_aref_sym.rb b/benchmark/bm_hash_aref_sym.rb
new file mode 100644
index 0000000000..f75d163fe6
--- /dev/null
+++ b/benchmark/bm_hash_aref_sym.rb
@@ -0,0 +1,9 @@
+h = {}
+syms = ('a'..'z').to_a
+begin
+  syms = eval("%i[#{syms.join(' ')}]")
+rescue SyntaxError # <= 1.9.3
+  syms.map!(&:to_sym)
+end
+syms.each { |s| h[s] = s }
+200_000.times { syms.each { |s| h[s] } }
diff --git a/benchmark/bm_hash_aref_sym_long.rb b/benchmark/bm_hash_aref_sym_long.rb
new file mode 100644
index 0000000000..9dab8df7be
--- /dev/null
+++ b/benchmark/bm_hash_aref_sym_long.rb
@@ -0,0 +1,13 @@
+h = {}
+syms = %w[puts warn syswrite write stat bacon lettuce tomato
+some symbols in this array may already be interned  others should not be
+hash browns make good breakfast but not cooked using prime numbers
+shift for division entries delete_if keys exist?
+]
+begin
+  syms = eval("%i[#{syms.join(' ')}]")
+rescue SyntaxError # <= 1.9.3
+  syms.map!(&:to_sym)
+end
+syms.each { |s| h[s] = s }
+200_000.times { syms.each { |s| h[s] } }
diff --git a/benchmark/bm_hash_flatten.rb b/benchmark/bm_hash_flatten.rb
new file mode 100644
index 0000000000..e944aae9f2
--- /dev/null
+++ b/benchmark/bm_hash_flatten.rb
@@ -0,0 +1,9 @@
+h = {}
+
+10000.times do |i|
+  h[i] = nil
+end
+
+1000.times do
+  h.flatten
+end
diff --git a/benchmark/bm_hash_ident_flo.rb b/benchmark/bm_hash_ident_flo.rb
new file mode 100644
index 0000000000..0c7edfed3e
--- /dev/null
+++ b/benchmark/bm_hash_ident_flo.rb
@@ -0,0 +1,4 @@
+h = {}.compare_by_identity
+strs = (1..10000).to_a.map!(&:to_f)
+strs.each { |s| h[s] = s }
+50.times { strs.each { |s| h[s] } }
diff --git a/benchmark/bm_hash_ident_num.rb b/benchmark/bm_hash_ident_num.rb
new file mode 100644
index 0000000000..b226736c6f
--- /dev/null
+++ b/benchmark/bm_hash_ident_num.rb
@@ -0,0 +1,4 @@
+h = {}.compare_by_identity
+nums = (1..26).to_a
+nums.each { |n| h[n] = n }
+200_000.times { nums.each { |n| h[n] } }
diff --git a/benchmark/bm_hash_ident_obj.rb b/benchmark/bm_hash_ident_obj.rb
new file mode 100644
index 0000000000..4b3b58edec
--- /dev/null
+++ b/benchmark/bm_hash_ident_obj.rb
@@ -0,0 +1,4 @@
+h = {}.compare_by_identity
+objs = 26.times.map { Object.new }
+objs.each { |o| h[o] = o }
+200_000.times { objs.each { |o| h[o] } }
diff --git a/benchmark/bm_hash_ident_str.rb b/benchmark/bm_hash_ident_str.rb
new file mode 100644
index 0000000000..8582b38e31
--- /dev/null
+++ b/benchmark/bm_hash_ident_str.rb
@@ -0,0 +1,4 @@
+h = {}.compare_by_identity
+strs = ('a'..'z').to_a
+strs.each { |s| h[s] = s }
+200_000.times { strs.each { |s| h[s] } }
diff --git a/benchmark/bm_hash_ident_sym.rb b/benchmark/bm_hash_ident_sym.rb
new file mode 100644
index 0000000000..4c81e3d28e
--- /dev/null
+++ b/benchmark/bm_hash_ident_sym.rb
@@ -0,0 +1,4 @@
+h = {}.compare_by_identity
+syms = ('a'..'z').to_a.map(&:to_sym)
+syms.each { |s| h[s] = s }
+200_000.times { syms.each { |s| h[s] } }
diff --git a/benchmark/bm_hash_keys.rb b/benchmark/bm_hash_keys.rb
new file mode 100644
index 0000000000..6863cd01f9
--- /dev/null
+++ b/benchmark/bm_hash_keys.rb
@@ -0,0 +1,9 @@
+h = {}
+
+10000.times do |i|
+  h[i] = nil
+end
+
+5000.times do
+  h.keys
+end
diff --git a/benchmark/bm_hash_shift.rb b/benchmark/bm_hash_shift.rb
new file mode 100644
index 0000000000..a645671a5b
--- /dev/null
+++ b/benchmark/bm_hash_shift.rb
@@ -0,0 +1,10 @@
+h = {}
+
+10000.times do |i|
+  h[i] = nil
+end
+
+50000.times do
+  k, v = h.shift
+  h[k] = v
+end
diff --git a/benchmark/bm_hash_shift_u16.rb b/benchmark/bm_hash_shift_u16.rb
new file mode 100644
index 0000000000..ec800d0342
--- /dev/null
+++ b/benchmark/bm_hash_shift_u16.rb
@@ -0,0 +1,10 @@
+h = {}
+
+(16384..65536).each do |i|
+  h[i] = nil
+end
+
+300000.times do
+  k, v = h.shift
+  h[k] = v
+end
diff --git a/benchmark/bm_hash_shift_u24.rb b/benchmark/bm_hash_shift_u24.rb
new file mode 100644
index 0000000000..de4e0fa696
--- /dev/null
+++ b/benchmark/bm_hash_shift_u24.rb
@@ -0,0 +1,10 @@
+h = {}
+
+(0xff4000..0xffffff).each do |i|
+  h[i] = nil
+end
+
+300000.times do
+  k, v = h.shift
+  h[k] = v
+end
diff --git a/benchmark/bm_hash_shift_u32.rb b/benchmark/bm_hash_shift_u32.rb
new file mode 100644
index 0000000000..656aa55583
--- /dev/null
+++ b/benchmark/bm_hash_shift_u32.rb
@@ -0,0 +1,10 @@
+h = {}
+
+(0xffff4000..0xffffffff).each do |i|
+  h[i] = nil
+end
+
+300000.times do
+  k, v = h.shift
+  h[k] = v
+end
diff --git a/benchmark/bm_hash_to_proc.rb b/benchmark/bm_hash_to_proc.rb
new file mode 100644
index 0000000000..2b675bf509
--- /dev/null
+++ b/benchmark/bm_hash_to_proc.rb
@@ -0,0 +1,9 @@
+h = {}
+
+10000.times do |i|
+  h[i] = nil
+end
+
+5000.times do |i|
+  [i].map(&h)
+end
diff --git a/benchmark/bm_hash_values.rb b/benchmark/bm_hash_values.rb
new file mode 100644
index 0000000000..069441302f
--- /dev/null
+++ b/benchmark/bm_hash_values.rb
@@ -0,0 +1,9 @@
+h = {}
+
+10000.times do |i|
+  h[i] = nil
+end
+
+5000.times do
+  h.values
+end
diff --git a/benchmark/bm_io_file_create.rb b/benchmark/bm_io_file_create.rb
new file mode 100644
index 0000000000..2f205c1333
--- /dev/null
+++ b/benchmark/bm_io_file_create.rb
@@ -0,0 +1,13 @@
+#
+# Create files
+#
+
+max = 200_000
+file = './tmpfile_of_bm_io_file_create'
+
+max.times{
+  f = open(file, 'w')
+  f.close#(true)
+}
+File.unlink(file)
+
diff --git a/benchmark/bm_io_file_read.rb b/benchmark/bm_io_file_read.rb
new file mode 100644
index 0000000000..b9e796ed30
--- /dev/null
+++ b/benchmark/bm_io_file_read.rb
@@ -0,0 +1,15 @@
+#
+# Seek and Read file.
+#
+
+require 'tempfile'
+
+max = 200_000
+str = "Hello world!  " * 1000
+f = Tempfile.new('yarv-benchmark')
+f.write str
+
+max.times{
+  f.seek 0
+  f.read
+}
diff --git a/benchmark/bm_io_file_write.rb b/benchmark/bm_io_file_write.rb
new file mode 100644
index 0000000000..aa1be0e5fe
--- /dev/null
+++ b/benchmark/bm_io_file_write.rb
@@ -0,0 +1,14 @@
+#
+# Seek and Write file.
+#
+
+require 'tempfile'
+
+max = 200_000
+str = "Hello world!  " * 1000
+f = Tempfile.new('yarv-benchmark')
+
+max.times{
+  f.seek 0
+  f.write str
+}
diff --git a/benchmark/bm_io_nonblock_noex.rb b/benchmark/bm_io_nonblock_noex.rb
new file mode 100644
index 0000000000..da9357fdc6
--- /dev/null
+++ b/benchmark/bm_io_nonblock_noex.rb
@@ -0,0 +1,22 @@
+nr = 1_000_000
+i = 0
+msg = '.'
+buf = '.'
+noex = { exception: false }
+begin
+  r, w = IO.pipe
+  while i < nr
+    i += 1
+    w.write_nonblock(msg, noex)
+    r.read_nonblock(1, buf, noex)
+  end
+rescue ArgumentError # old Rubies
+  while i < nr
+    i += 1
+    w.write_nonblock(msg)
+    r.read_nonblock(1, buf)
+  end
+ensure
+  r.close
+  w.close
+end
diff --git a/benchmark/bm_io_nonblock_noex2.rb b/benchmark/bm_io_nonblock_noex2.rb
new file mode 100644
index 0000000000..56819d049b
--- /dev/null
+++ b/benchmark/bm_io_nonblock_noex2.rb
@@ -0,0 +1,21 @@
+nr = 1_000_000
+i = 0
+msg = '.'
+buf = '.'
+begin
+  r, w = IO.pipe
+  while i < nr
+    i += 1
+    w.write_nonblock(msg, exception: false)
+    r.read_nonblock(1, buf, exception: false)
+  end
+rescue ArgumentError # old Rubies
+  while i < nr
+    i += 1
+    w.write_nonblock(msg)
+    r.read_nonblock(1, buf)
+  end
+ensure
+  r.close
+  w.close
+end
diff --git a/benchmark/bm_io_select.rb b/benchmark/bm_io_select.rb
new file mode 100644
index 0000000000..19248daeb1
--- /dev/null
+++ b/benchmark/bm_io_select.rb
@@ -0,0 +1,9 @@
+# IO.select performance
+
+w = [ IO.pipe[1] ];
+
+nr = 1000000
+nr.times {
+  IO.select nil, w
+}
+
diff --git a/benchmark/bm_io_select2.rb b/benchmark/bm_io_select2.rb
new file mode 100644
index 0000000000..10e37d71b2
--- /dev/null
+++ b/benchmark/bm_io_select2.rb
@@ -0,0 +1,22 @@
+# IO.select performance. worst case of single fd.
+
+ios = []
+nr = 1000000
+if defined?(Process::RLIMIT_NOFILE)
+  max = Process.getrlimit(Process::RLIMIT_NOFILE)[0]
+else
+  max = 64
+end
+puts "max fd: #{max} (results not apparent with <= 1024 max fd)"
+
+((max / 2) - 10).times do
+  ios.concat IO.pipe
+end
+
+last = [ ios[-1] ]
+puts "last IO: #{last[0].inspect}"
+
+nr.times do
+  IO.select nil, last
+end
+
diff --git a/benchmark/bm_io_select3.rb b/benchmark/bm_io_select3.rb
new file mode 100644
index 0000000000..7d0ba1f092
--- /dev/null
+++ b/benchmark/bm_io_select3.rb
@@ -0,0 +1,21 @@
+# IO.select performance. a lot of fd
+
+ios = []
+nr = 100
+if defined?(Process::RLIMIT_NOFILE)
+  max = Process.getrlimit(Process::RLIMIT_NOFILE)[0]
+else
+  max = 64
+end
+puts "max fd: #{max} (results not apparent with <= 1024 max fd)"
+
+(max - 10).times do
+  r, w = IO.pipe
+  r.close
+  ios.push w
+end
+
+nr.times do
+  IO.select nil, ios
+end
+
diff --git a/benchmark/bm_loop_for.rb b/benchmark/bm_loop_for.rb
new file mode 100644
index 0000000000..0fc4cc1511
--- /dev/null
+++ b/benchmark/bm_loop_for.rb
@@ -0,0 +1,3 @@
+for i in 1..30_000_000
+  #
+end
diff --git a/benchmark/bm_loop_generator.rb b/benchmark/bm_loop_generator.rb
new file mode 100644
index 0000000000..d3375c744c
--- /dev/null
+++ b/benchmark/bm_loop_generator.rb
@@ -0,0 +1,14 @@
+max = 600000
+
+if defined? Fiber
+  gen = (1..max).each
+  loop do
+    gen.next
+  end
+else
+  require 'generator'
+  gen = Generator.new((0..max))
+  while gen.next?
+    gen.next
+  end
+end
diff --git a/benchmark/bm_loop_times.rb b/benchmark/bm_loop_times.rb
new file mode 100644
index 0000000000..521f72ad1a
--- /dev/null
+++ b/benchmark/bm_loop_times.rb
@@ -0,0 +1 @@
+30_000_000.times{|e|}
diff --git a/benchmark/bm_loop_whileloop.rb b/benchmark/bm_loop_whileloop.rb
new file mode 100644
index 0000000000..0072822c06
--- /dev/null
+++ b/benchmark/bm_loop_whileloop.rb
@@ -0,0 +1,4 @@
+i = 0
+while i<30_000_000 # benchmark loop 1
+  i += 1
+end
diff --git a/benchmark/bm_loop_whileloop2.rb b/benchmark/bm_loop_whileloop2.rb
new file mode 100644
index 0000000000..47d02dffc4
--- /dev/null
+++ b/benchmark/bm_loop_whileloop2.rb
@@ -0,0 +1,4 @@
+i = 0
+while i< 6_000_000 # benchmark loop 2
+  i += 1
+end
diff --git a/benchmark/bm_marshal_dump_flo.rb b/benchmark/bm_marshal_dump_flo.rb
new file mode 100644
index 0000000000..9b8d0c6afb
--- /dev/null
+++ b/benchmark/bm_marshal_dump_flo.rb
@@ -0,0 +1,2 @@
+bug10761 = 10000.times.map { |x| x.to_f }
+100.times { Marshal.dump(bug10761) }
diff --git a/benchmark/bm_marshal_dump_load_geniv.rb b/benchmark/bm_marshal_dump_load_geniv.rb
new file mode 100644
index 0000000000..8252ad90fa
--- /dev/null
+++ b/benchmark/bm_marshal_dump_load_geniv.rb
@@ -0,0 +1,10 @@
+a = ''
+a.instance_eval do
+  @a = :a
+  @b = :b
+  @c = :c
+end
+100000.times do
+  a = Marshal.load(Marshal.dump(a))
+end
+#p(a.instance_eval { @a == :a && @b == :b && @c == :c })
diff --git a/benchmark/bm_marshal_dump_load_time.rb b/benchmark/bm_marshal_dump_load_time.rb
new file mode 100644
index 0000000000..e29743b791
--- /dev/null
+++ b/benchmark/bm_marshal_dump_load_time.rb
@@ -0,0 +1 @@
+100000.times { Marshal.load(Marshal.dump(Time.now)) }
diff --git a/benchmark/bm_require.rb b/benchmark/bm_require.rb
new file mode 100644
index 0000000000..b8abc88f41
--- /dev/null
+++ b/benchmark/bm_require.rb
@@ -0,0 +1,7 @@
+$:.push File.join(File.dirname(__FILE__), "bm_require.data")
+
+1.upto(10000) do |i|
+  require "c#{i}"
+end
+
+$:.pop
diff --git a/benchmark/bm_require_thread.rb b/benchmark/bm_require_thread.rb
new file mode 100644
index 0000000000..e54db6c6e5
--- /dev/null
+++ b/benchmark/bm_require_thread.rb
@@ -0,0 +1,15 @@
+$:.push File.join(File.dirname(__FILE__), "bm_require.data")
+
+i=0
+t = Thread.new do
+  while true
+    i = i+1 # dummy loop
+  end
+end
+
+1.upto(100) do |i|
+  require "c#{i}"
+end
+
+$:.pop
+t.kill
diff --git a/benchmark/bm_securerandom.rb b/benchmark/bm_securerandom.rb
new file mode 100644
index 0000000000..a082ea6d5b
--- /dev/null
+++ b/benchmark/bm_securerandom.rb
@@ -0,0 +1,5 @@
+require "securerandom"
+
+20_0000.times do
+  SecureRandom.random_number(100)
+end
diff --git a/benchmark/bm_so_ackermann.rb b/benchmark/bm_so_ackermann.rb
new file mode 100644
index 0000000000..7db5be9050
--- /dev/null
+++ b/benchmark/bm_so_ackermann.rb
@@ -0,0 +1,19 @@
+#!/usr/bin/ruby
+# -*- mode: ruby -*-
+# $Id: ackermann-ruby.code,v 1.4 2004/11/13 07:40:41 bfulgham Exp $
+# http://www.bagley.org/~doug/shootout/
+
+def ack(m, n)
+    if m == 0 then
+        n + 1
+    elsif n == 0 then
+        ack(m - 1, 1)
+    else
+        ack(m - 1, ack(m, n - 1))
+    end
+end
+
+NUM = 9
+ack(3, NUM)
+
+
diff --git a/benchmark/bm_so_array.rb b/benchmark/bm_so_array.rb
new file mode 100644
index 0000000000..2b8fce8f99
--- /dev/null
+++ b/benchmark/bm_so_array.rb
@@ -0,0 +1,23 @@
+#!/usr/bin/ruby
+# -*- mode: ruby -*-
+# $Id: ary-ruby.code,v 1.4 2004/11/13 07:41:27 bfulgham Exp $
+# http://www.bagley.org/~doug/shootout/
+# with help from Paul Brannan and Mark Hubbart
+
+n = 9000 # Integer(ARGV.shift || 1)
+
+x = Array.new(n)
+y = Array.new(n, 0)
+
+n.times{|bi|
+  x[bi] = bi + 1
+}
+
+(0 .. 999).each do |e|
+  (n-1).step(0,-1) do |bi|
+    y[bi] += x.at(bi)
+  end
+end
+# puts "#{y.first} #{y.last}"
+
+
diff --git a/benchmark/bm_so_binary_trees.rb b/benchmark/bm_so_binary_trees.rb
new file mode 100644
index 0000000000..b1693e4109
--- /dev/null
+++ b/benchmark/bm_so_binary_trees.rb
@@ -0,0 +1,62 @@
+# The Computer Language Shootout Benchmarks
+# http://shootout.alioth.debian.org
+#
+# contributed by Jesse Millikan
+
+# disable output
+alias puts_orig puts
+def puts str
+  # disable puts
+end
+
+def item_check(tree)
+ if tree[0] == nil
+  tree[1]
+ else
+  tree[1] + item_check(tree[0]) - item_check(tree[2])
+ end
+end
+
+def bottom_up_tree(item, depth)
+ if depth > 0
+  item_item = 2 * item
+  depth -= 1
+  [bottom_up_tree(item_item - 1, depth), item, bottom_up_tree(item_item, depth)]
+ else
+  [nil, item, nil]
+ end
+end
+
+max_depth = 16 # ARGV[0].to_i
+min_depth = 4
+
+max_depth = min_depth + 2 if min_depth + 2 > max_depth
+
+stretch_depth = max_depth + 1
+stretch_tree = bottom_up_tree(0, stretch_depth)
+
+puts "stretch tree of depth #{stretch_depth}\t check: #{item_check(stretch_tree)}"
+stretch_tree = nil
+
+long_lived_tree = bottom_up_tree(0, max_depth)
+
+min_depth.step(max_depth + 1, 2) do |depth|
+ iterations = 2**(max_depth - depth + min_depth)
+
+ check = 0
+
+ for i in 1..iterations
+  temp_tree = bottom_up_tree(i, depth)
+  check += item_check(temp_tree)
+
+  temp_tree = bottom_up_tree(-i, depth)
+  check += item_check(temp_tree)
+ end
+
+ puts "#{iterations * 2}\t trees of depth #{depth}\t check: #{check}"
+end
+
+puts "long lived tree of depth #{max_depth}\t check: #{item_check(long_lived_tree)}"
+
+undef puts
+alias puts puts_orig
diff --git a/benchmark/bm_so_concatenate.rb b/benchmark/bm_so_concatenate.rb
new file mode 100644
index 0000000000..873214de7c
--- /dev/null
+++ b/benchmark/bm_so_concatenate.rb
@@ -0,0 +1,18 @@
+#!/usr/bin/ruby
+# -*- mode: ruby -*-
+# $Id: strcat-ruby.code,v 1.4 2004/11/13 07:43:28 bfulgham Exp $
+# http://www.bagley.org/~doug/shootout/
+# based on code from Aristarkh A Zagorodnikov and Dat Nguyen
+
+STUFF = "hello\n"
+i = 0
+while i<10
+  i += 1
+  hello = ''
+  4_000_000.times do |e|
+    hello << STUFF
+  end
+end
+# puts hello.length
+
+
diff --git a/benchmark/bm_so_count_words.rb b/benchmark/bm_so_count_words.rb
new file mode 100644
index 0000000000..65f6337a4a
--- /dev/null
+++ b/benchmark/bm_so_count_words.rb
@@ -0,0 +1,19 @@
+#!/usr/bin/ruby
+# -*- mode: ruby -*-
+# $Id: wc-ruby.code,v 1.4 2004/11/13 07:43:32 bfulgham Exp $
+# http://www.bagley.org/~doug/shootout/
+# with help from Paul Brannan
+
+input = open(File.join(File.dirname($0), 'wc.input'), 'rb')
+
+nl = nw = nc = 0
+while true
+  tmp = input.read(4096) or break
+  data = tmp << (input.gets || "")
+  nc += data.length
+  nl += data.count("\n")
+  ((data.strip! || data).tr!("\n", " ") || data).squeeze!
+  nw += data.count(" ") + 1
+end
+# STDERR.puts "#{nl} #{nw} #{nc}"
+
diff --git a/benchmark/bm_so_exception.rb b/benchmark/bm_so_exception.rb
new file mode 100644
index 0000000000..deb003a594
--- /dev/null
+++ b/benchmark/bm_so_exception.rb
@@ -0,0 +1,61 @@
+#!/usr/bin/ruby
+# -*- mode: ruby -*-
+# $Id: except-ruby.code,v 1.4 2004/11/13 07:41:33 bfulgham Exp $
+# http://www.bagley.org/~doug/shootout/
+
+$HI = 0
+$LO = 0
+NUM = 250000 # Integer(ARGV[0] || 1)
+
+
+class Lo_Exception < Exception
+  def initialize(num)
+    @value = num
+  end
+end
+
+class Hi_Exception < Exception
+  def initialize(num)
+    @value = num
+  end
+end
+
+def some_function(num)
+  begin
+    hi_function(num)
+  rescue
+    print "We shouldn't get here, exception is: #{$!.type}\n"
+  end
+end
+
+def hi_function(num)
+  begin
+    lo_function(num)
+  rescue Hi_Exception
+    $HI = $HI + 1
+  end
+end
+
+def lo_function(num)
+  begin
+    blowup(num)
+  rescue Lo_Exception
+    $LO = $LO + 1
+  end
+end
+
+def blowup(num)
+  if num % 2 == 0
+    raise Lo_Exception.new(num)
+  else
+    raise Hi_Exception.new(num)
+  end
+end
+
+
+i = 1
+max = NUM+1
+while i < max
+  i += 1
+  some_function(i+1)
+end
diff --git a/benchmark/bm_so_fannkuch.rb b/benchmark/bm_so_fannkuch.rb
new file mode 100644
index 0000000000..bac5ecd44c
--- /dev/null
+++ b/benchmark/bm_so_fannkuch.rb
@@ -0,0 +1,45 @@
+# The Computer Language Shootout
+# http://shootout.alioth.debian.org/
+# Contributed by Sokolov Yura
+# Modified by Ryan Williams
+
+def fannkuch(n)
+   maxFlips, m, r, check = 0, n-1, n, 0
+   count = (1..n).to_a
+   perm = (1..n).to_a
+
+   while true
+      if check < 30
+         puts "#{perm}"
+         check += 1
+      end
+
+      while r != 1
+         count[r-1] = r
+         r -= 1
+      end
+
+      if perm[0] != 1 and perm[m] != n
+         perml = perm.clone #.dup
+         flips = 0
+         while (k = perml.first ) != 1
+            perml = perml.slice!(0, k).reverse + perml
+            flips += 1
+         end
+         maxFlips = flips if flips > maxFlips
+      end
+      while true
+         if r==n then return maxFlips end
+         perm.insert r,perm.shift
+         break if (count[r] -= 1) > 0
+         r += 1
+      end
+   end
+end
+
+def puts *args
+end
+
+N = 9 # (ARGV[0] || 1).to_i
+puts "Pfannkuchen(#{N}) = #{fannkuch(N)}"
+
diff --git a/benchmark/bm_so_fasta.rb b/benchmark/bm_so_fasta.rb
new file mode 100644
index 0000000000..3f759ba7ae
--- /dev/null
+++ b/benchmark/bm_so_fasta.rb
@@ -0,0 +1,81 @@
+# The Computer Language Shootout
+# http://shootout.alioth.debian.org/
+# Contributed by Sokolov Yura
+
+$last = 42.0
+def gen_random (max,im=139968,ia=3877,ic=29573)
+    (max * ($last = ($last * ia + ic) % im)) / im
+end
+
+alu =
+   "GGCCGGGCGCGGTGGCTCACGCCTGTAATCCCAGCACTTTGG"+
+   "GAGGCCGAGGCGGGCGGATCACCTGAGGTCAGGAGTTCGAGA"+
+   "CCAGCCTGGCCAACATGGTGAAACCCCGTCTCTACTAAAAAT"+
+   "ACAAAAATTAGCCGGGCGTGGTGGCGCGCGCCTGTAATCCCA"+
+   "GCTACTCGGGAGGCTGAGGCAGGAGAATCGCTTGAACCCGGG"+
+   "AGGCGGAGGTTGCAGTGAGCCGAGATCGCGCCACTGCACTCC"+
+   "AGCCTGGGCGACAGAGCGAGACTCCGTCTCAAAAA"
+
+iub = [
+    ["a", 0.27],
+    ["c", 0.12],
+    ["g", 0.12],
+    ["t", 0.27],
+
+    ["B", 0.02],
+    ["D", 0.02],
+    ["H", 0.02],
+    ["K", 0.02],
+    ["M", 0.02],
+    ["N", 0.02],
+    ["R", 0.02],
+    ["S", 0.02],
+    ["V", 0.02],
+    ["W", 0.02],
+    ["Y", 0.02],
+]
+homosapiens = [
+    ["a", 0.3029549426680],
+    ["c", 0.1979883004921],
+    ["g", 0.1975473066391],
+    ["t", 0.3015094502008],
+]
+
+def make_repeat_fasta(id, desc, src, n)
+    puts ">#{id} #{desc}"
+    v = nil
+    width = 60
+    l = src.length
+    s = src * ((n / l) + 1)
+    s.slice!(n, l)
+    puts(s.scan(/.{1,#{width}}/).join("\n"))
+end
+
+def make_random_fasta(id, desc, table, n)
+    puts ">#{id} #{desc}"
+    rand, v = nil,nil
+    width = 60
+    chunk = 1 * width
+    prob = 0.0
+    table.each{|v| v[1]= (prob += v[1])}
+    for i in 1..(n/width)
+        puts((1..width).collect{
+            rand = gen_random(1.0)
+            table.find{|v| v[1]>rand}[0]
+        }.join)
+    end
+    if n%width != 0
+        puts((1..(n%width)).collect{
+            rand = gen_random(1.0)
+            table.find{|v| v[1]>rand}[0]
+        }.join)
+    end
+end
+
+
+n = (ARGV[0] or 250_000).to_i
+
+make_repeat_fasta('ONE', 'Homo sapiens alu', alu, n*2)
+make_random_fasta('TWO', 'IUB ambiguity codes', iub, n*3)
+make_random_fasta('THREE', 'Homo sapiens frequency', homosapiens, n*5)
+
diff --git a/benchmark/bm_so_k_nucleotide.rb b/benchmark/bm_so_k_nucleotide.rb
new file mode 100644
index 0000000000..dadab3e79c
--- /dev/null
+++ b/benchmark/bm_so_k_nucleotide.rb
@@ -0,0 +1,48 @@
+# The Computer Language Shootout
+# http://shootout.alioth.debian.org
+#
+# contributed by jose fco. gonzalez
+# modified by Sokolov Yura
+
+seq = String.new
+
+def frecuency( seq,length )
+    n, table = seq.length - length + 1, Hash.new(0)
+    f, i = nil, nil
+    (0 ... length).each do |f|
+        (f ... n).step(length) do |i|
+            table[seq[i,length]] += 1
+        end
+    end
+    [n,table]
+
+end
+
+def sort_by_freq( seq,length )
+    n,table = frecuency( seq,length )
+    a, b, v = nil, nil, nil
+    table.sort{|a,b| b[1] <=> a[1]}.each do |v|
+        puts "%s %.3f" % [v[0].upcase,((v[1]*100).to_f/n)]
+    end
+    puts
+end
+
+def find_seq( seq,s )
+    n,table = frecuency( seq,s.length )
+    puts "#{table[s].to_s}\t#{s.upcase}"
+end
+
+input = open(File.join(File.dirname($0), 'fasta.output.100000'), 'rb')
+
+line = input.gets while line !~ /^>THREE/
+line = input.gets
+
+while (line !~ /^>/) & line do
+    seq << line.chomp
+    line = input.gets
+end
+
+[1,2].each {|i| sort_by_freq( seq,i ) }
+
+%w(ggt ggta ggtatt ggtattttaatt ggtattttaatttatagt).each{|s| find_seq( seq,s) }
+
diff --git a/benchmark/bm_so_lists.rb b/benchmark/bm_so_lists.rb
new file mode 100644
index 0000000000..e8f4a2a5f7
--- /dev/null
+++ b/benchmark/bm_so_lists.rb
@@ -0,0 +1,47 @@
+#from http://www.bagley.org/~doug/shootout/bench/lists/lists.ruby
+
+NUM = 300
+SIZE = 10000
+
+def test_lists()
+  # create a list of integers (Li1) from 1 to SIZE
+  li1 = (1..SIZE).to_a
+  # copy the list to li2 (not by individual items)
+  li2 = li1.dup
+  # remove each individual item from left side of li2 and
+  # append to right side of li3 (preserving order)
+  li3 = Array.new
+  while (not li2.empty?)
+    li3.push(li2.shift)
+  end
+  # li2 must now be empty
+  # remove each individual item from right side of li3 and
+  # append to right side of li2 (reversing list)
+  while (not li3.empty?)
+    li2.push(li3.pop)
+  end
+  # li3 must now be empty
+  # reverse li1 in place
+  li1.reverse!
+  # check that first item is now SIZE
+  if li1[0] != SIZE then
+    p "not SIZE"
+    0
+  else
+    # compare li1 and li2 for equality
+    if li1 != li2 then
+      return(0)
+    else
+      # return the length of the list
+      li1.length
+    end
+  end
+end
+
+i = 0
+while i<NUM
+  i += 1
+  result = test_lists()
+end
+
+result
diff --git a/benchmark/bm_so_mandelbrot.rb b/benchmark/bm_so_mandelbrot.rb
new file mode 100644
index 0000000000..76331c64b8
--- /dev/null
+++ b/benchmark/bm_so_mandelbrot.rb
@@ -0,0 +1,57 @@
+#  The Computer Language Benchmarks Game
+#  http://shootout.alioth.debian.org/
+#
+#  contributed by Karl von Laudermann
+#  modified by Jeremy Echols
+
+size = 600 # ARGV[0].to_i
+
+puts "P4\n#{size} #{size}"
+
+ITER = 49                           # Iterations - 1 for easy for..in looping
+LIMIT_SQUARED = 4.0                 # Presquared limit
+
+byte_acc = 0
+bit_num = 0
+
+count_size = size - 1               # Precomputed size for easy for..in looping
+
+# For..in loops are faster than .upto, .downto, .times, etc.
+for y in 0..count_size
+  for x in 0..count_size
+    zr = 0.0
+    zi = 0.0
+    cr = (2.0*x/size)-1.5
+    ci = (2.0*y/size)-1.0
+    escape = false
+
+    # To make use of the for..in code, we use a dummy variable,
+    # like one would in C
+    for dummy in 0..ITER
+      tr = zr*zr - zi*zi + cr
+      ti = 2*zr*zi + ci
+      zr, zi = tr, ti
+
+      if (zr*zr+zi*zi) > LIMIT_SQUARED
+        escape = true
+        break
+      end
+    end
+
+    byte_acc = (byte_acc << 1) | (escape ? 0b0 : 0b1)
+    bit_num += 1
+
+    # Code is very similar for these cases, but using separate blocks
+    # ensures we skip the shifting when it's unnecessary, which is most cases.
+    if (bit_num == 8)
+      print byte_acc.chr
+      byte_acc = 0
+      bit_num = 0
+    elsif (x == count_size)
+      byte_acc <<= (8 - bit_num)
+      print byte_acc.chr
+      byte_acc = 0
+      bit_num = 0
+    end
+  end
+end
diff --git a/benchmark/bm_so_matrix.rb b/benchmark/bm_so_matrix.rb
new file mode 100644
index 0000000000..e2c5c8e559
--- /dev/null
+++ b/benchmark/bm_so_matrix.rb
@@ -0,0 +1,48 @@
+#!/usr/bin/ruby
+# -*- mode: ruby -*-
+# $Id: matrix-ruby.code,v 1.4 2004/11/13 07:42:14 bfulgham Exp $
+# http://www.bagley.org/~doug/shootout/
+
+n = 60 #Integer(ARGV.shift || 1)
+
+size = 40
+
+def mkmatrix(rows, cols)
+    count = 1
+    mx = Array.new(rows)
+    (0 .. (rows - 1)).each do |bi|
+        row = Array.new(cols, 0)
+        (0 .. (cols - 1)).each do |j|
+            row[j] = count
+            count += 1
+        end
+        mx[bi] = row
+    end
+    mx
+end
+
+def mmult(rows, cols, m1, m2)
+    m3 = Array.new(rows)
+    (0 .. (rows - 1)).each do |bi|
+        row = Array.new(cols, 0)
+        (0 .. (cols - 1)).each do |j|
+            val = 0
+            (0 .. (cols - 1)).each do |k|
+                val += m1.at(bi).at(k) * m2.at(k).at(j)
+            end
+            row[j] = val
+        end
+        m3[bi] = row
+    end
+    m3
+end
+
+m1 = mkmatrix(size, size)
+m2 = mkmatrix(size, size)
+mm = Array.new
+n.times do
+    mm = mmult(size, size, m1, m2)
+end
+# puts "#{mm[0][0]} #{mm[2][3]} #{mm[3][2]} #{mm[4][4]}"
+
+
diff --git a/benchmark/bm_so_meteor_contest.rb b/benchmark/bm_so_meteor_contest.rb
new file mode 100644
index 0000000000..64a7d46afe
--- /dev/null
+++ b/benchmark/bm_so_meteor_contest.rb
@@ -0,0 +1,563 @@
+#!/usr/bin/env ruby
+#
+# The Computer Language Shootout
+#   http://shootout.alioth.debian.org
+#   contributed by Kevin Barnes (Ruby novice)
+
+# PROGRAM:  the main body is at the bottom.
+#   1) read about the problem here: http://www-128.ibm.com/developerworks/java/library/j-javaopt/
+#   2) see how I represent a board as a bitmask by reading the blank_board comments
+#   3) read as your mental paths take you
+
+def print *args
+end
+
+# class to represent all information about a particular rotation of a particular piece
+class Rotation
+  # an array (by location) containing a bit mask for how the piece maps at the given location.
+  # if the rotation is invalid at that location the mask will contain false
+  attr_reader :start_masks
+
+  # maps a direction to a relative location.  these differ depending on whether it is an even or
+  # odd row being mapped from
+  @@rotation_even_adder = { :west => -1, :east => 1, :nw => -7, :ne => -6, :sw => 5, :se => 6 }
+  @@rotation_odd_adder = { :west => -1, :east => 1, :nw => -6, :ne => -5, :sw => 6, :se => 7 }
+
+  def initialize( directions )
+    @even_offsets, @odd_offsets = normalize_offsets( get_values( directions ))
+
+    @even_mask = mask_for_offsets( @even_offsets)
+    @odd_mask = mask_for_offsets( @odd_offsets)
+
+    @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
+    # is true the piece cannot be placed
+    0.upto(59) do | offset |
+      mask = is_even(offset) ? (@even_mask << offset) : (@odd_mask << offset)
+      if (blank_board & mask == 0 && !prunable(blank_board | mask, 0, true)) then
+        imask = compute_required( mask, offset)
+        @start_masks[offset] = [ mask, imask, imask | mask ]
+      else
+        @start_masks[offset] = false
+      end
+    end
+  end
+
+  def compute_required( mask, offset )
+    board = blank_board
+    0.upto(offset) { | i | board |= 1 << i }
+    board |= mask
+    return 0 if (!prunable(board | mask, offset))
+    board = flood_fill(board,58)
+    count = 0
+    imask = 0
+    0.upto(59) do | i |
+      if (board[i] == 0) then
+        imask |= (1 << i)
+        count += 1
+      end
+    end
+    (count > 0 && count < 5) ? imask : 0
+  end
+
+  def flood_fill( board, location)
+    return board if (board[location] == 1)
+    board |= 1 << location
+    row, col = location.divmod(6)
+    board = flood_fill( board, location - 1) if (col > 0)
+    board = flood_fill( board, location + 1) if (col < 4)
+    if (row % 2 == 0) then
+      board = flood_fill( board, location - 7) if (col > 0 && row > 0)
+      board = flood_fill( board, location - 6) if (row > 0)
+      board = flood_fill( board, location + 6) if (row < 9)
+      board = flood_fill( board, location + 5) if (col > 0 && row < 9)
+    else
+      board = flood_fill( board, location - 5) if (col < 4 && row > 0)
+      board = flood_fill( board, location - 6) if (row > 0)
+      board = flood_fill( board, location + 6) if (row < 9)
+      board = flood_fill( board, location + 7) if (col < 4 && row < 9)
+    end
+    board
+  end
+
+  # given a location, produces a list of relative locations covered by the piece at this rotation
+  def offsets( location)
+    if is_even( location) then
+      @even_offsets.collect { | value | value + location }
+    else
+      @odd_offsets.collect { | value | value + location }
+    end
+  end
+
+  # returns a set of offsets relative to the top-left most piece of the rotation (by even or odd rows)
+  # this is hard to explain. imagine we have this partial board:
+  #   0 0 0 0 0 x        [positions 0-5]
+  #    0 0 1 1 0 x       [positions 6-11]
+  #   0 0 1 0 0 x        [positions 12-17]
+  #    0 1 0 0 0 x       [positions 18-23]
+  #   0 1 0 0 0 x        [positions 24-29]
+  #    0 0 0 0 0 x       [positions 30-35]
+  #       ...
+  # The top-left of the piece is at position 8, the
+  # board would be passed as a set of positions (values array) containing [8,9,14,19,25] not necessarily in that
+  # sorted order.  Since that array starts on an odd row, the offsets for an odd row are: [0,1,6,11,17] obtained
+  # by subtracting 8 from everything.  Now imagine the piece shifted up and to the right so it's on an even row:
+  #   0 0 0 1 1 x        [positions 0-5]
+  #    0 0 1 0 0 x       [positions 6-11]
+  #   0 0 1 0 0 x        [positions 12-17]
+  #    0 1 0 0 0 x       [positions 18-23]
+  #   0 0 0 0 0 x        [positions 24-29]
+  #    0 0 0 0 0 x       [positions 30-35]
+  #       ...
+  # Now the positions are [3,4,8,14,19] which after subtracting the lowest value (3) gives [0,1,5,11,16] thus, the
+  # offsets for this particular piece are (in even, odd order) [0,1,5,11,16],[0,1,6,11,17] which is what
+  # this function would return
+  def normalize_offsets( values)
+    min = values.min
+    even_min = is_even(min)
+    other_min = even_min ? min + 6 : min + 7
+    other_values = values.collect do | value |
+      if is_even(value) then
+        value + 6 - other_min
+      else
+        value + 7 - other_min
+      end
+    end
+    values.collect! { | value | value - min }
+
+    if even_min then
+      [values, other_values]
+    else
+      [other_values, values]
+    end
+  end
+
+  # produce a bitmask representation of an array of offset locations
+  def mask_for_offsets( offsets )
+    mask = 0
+    offsets.each { | value | mask = mask + ( 1 << value ) }
+    mask
+  end
+
+  # finds a "safe" position that a position as described by a list of directions can be placed
+  # without falling off any edge of the board.  the values returned a location to place the first piece
+  # at so it will fit after making the described moves
+  def start_adjust( directions )
+    south = east = 0;
+    directions.each do | direction |
+      east += 1 if ( direction == :sw || direction == :nw || direction == :west )
+      south += 1 if ( direction == :nw || direction == :ne )
+    end
+    south * 6 + east
+  end
+
+  # 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 )
+    start = start_adjust(directions)
+    values = [ start ]
+    directions.each do | direction |
+      if (start % 12 >= 6) then
+        start += @@rotation_odd_adder[direction]
+      else
+        start += @@rotation_even_adder[direction]
+      end
+      values += [ start ]
+    end
+
+    # some moves take you back to an existing location, we'll strip duplicates
+    values.uniq
+  end
+end
+
+# describes a piece and caches information about its rotations to as to be efficient for iteration
+# ATTRIBUTES:
+#   rotations -- all the rotations of the piece
+#   type -- a numeic "name" of the piece
+#   masks -- an array by location of all legal rotational masks (a n inner array) for that location
+#   placed -- the mask that this piece was last placed at (not a location, but the actual mask used)
+class Piece
+  attr_reader :rotations, :type, :masks
+  attr_accessor :placed
+
+  # transform hashes that change one direction into another when you either flip or rotate a set of directions
+  @@flip_converter = { :west => :west, :east => :east, :nw => :sw, :ne => :se, :sw => :nw, :se => :ne }
+  @@rotate_converter = { :west => :nw, :east => :se, :nw => :ne, :ne => :east, :sw => :west, :se => :sw }
+
+  def initialize( directions, type )
+    @type = type
+    @rotations = Array.new();
+    @map = {}
+
+    generate_rotations( directions )
+    directions.collect! { | value | @@flip_converter[value] }
+    generate_rotations( directions )
+
+    # creates the masks AND a map that returns [location, rotation] for any given mask
+    # this is used when a board is found and we want to draw it, otherwise the map is unused
+    @masks = Array.new();
+    0.upto(59) do | i |
+      even = true
+      @masks[i] = @rotations.collect do | rotation |
+        mask = rotation.start_masks[i]
+        @map[mask[0]] = [ i, rotation ] if (mask)
+        mask || nil
+      end
+      @masks[i].compact!
+    end
+  end
+
+  # rotates a set of directions through all six angles and adds a Rotation to the list for each one
+  def generate_rotations( directions )
+    6.times do
+      rotations.push( Rotation.new(directions))
+      directions.collect! { | value | @@rotate_converter[value] }
+    end
+  end
+
+  # given a board string, adds this piece to the board at whatever location/rotation
+  # important: the outbound board string is 5 wide, the normal location notation is six wide (padded)
+  def fill_string( board_string)
+    location, rotation = @map[@placed]
+    rotation.offsets(location).each do | offset |
+      row, col = offset.divmod(6)
+      board_string[ row*5 + col, 1 ] = @type.to_s
+    end
+  end
+end
+
+# a blank bit board having this form:
+#
+#    0 0 0 0 0 1
+#     0 0 0 0 0 1
+#    0 0 0 0 0 1
+#     0 0 0 0 0 1
+#    0 0 0 0 0 1
+#     0 0 0 0 0 1
+#    0 0 0 0 0 1
+#     0 0 0 0 0 1
+#    0 0 0 0 0 1
+#     0 0 0 0 0 1
+#    1 1 1 1 1 1
+#
+# where left lest significant bit is the top left and the most significant is the lower right
+# the actual board only consists of the 0 places, the 1 places are blockers to keep things from running
+# off the edges or bottom
+def blank_board
+  0b111111100000100000100000100000100000100000100000100000100000100000
+end
+
+def full_board
+  0b111111111111111111111111111111111111111111111111111111111111111111
+end
+
+# determines if a location (bit position) is in an even row
+def is_even( location)
+  (location % 12) < 6
+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
+#  $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,
+#                   the second is the count of those bits and the third is identical to the first
+#                   examples:
+#                           0b10010 => [ 0b01100, 2, 0b01100 ], [ 0b00001, 1, 0b00001]
+#                           0b01010 => [ 0b10000, 1, 0b10000 ], [ 0b00100, 1, 0b00100 ], [ 0b00001, 1, 0b00001]
+#                           0b10001 => [ 0b01110, 3, 0b01110 ]
+def create_collector_support
+  odd_map = [0b11, 0b110, 0b1100, 0b11000, 0b10000]
+  even_map = [0b1, 0b11, 0b110, 0b1100, 0b11000]
+
+  all_odds = Array.new(0b100000)
+  all_evens = Array.new(0b100000)
+  bit_counts = Array.new(0b100000)
+  new_regions = Array.new(0b100000)
+  0.upto(0b11111) do | i |
+    bit_count = odd = even = 0
+    0.upto(4) do | bit |
+      if (i[bit] == 1) then
+        bit_count += 1
+        odd |= odd_map[bit]
+        even |= even_map[bit]
+      end
+    end
+    all_odds[i] = odd
+    all_evens[i] = even
+    bit_counts[i] = bit_count
+    new_regions[i] = create_regions( i)
+  end
+
+  $converter = []
+  10.times { | row | $converter.push((row % 2 == 0) ? all_evens : all_odds) }
+  $bit_counts = bit_counts
+  $regions = new_regions.collect { | set | set.collect { | value | [ value, bit_counts[value], value] } }
+end
+
+# determines if a board is punable, meaning that there is no possibility that it
+# can be filled up with pieces.  A board is prunable if there is a grouping of unfilled spaces
+# that are not a multiple of five.  The following board is an example of a prunable board:
+#    0 0 1 0 0
+#     0 1 0 0 0
+#    1 1 0 0 0
+#     0 1 0 0 0
+#    0 0 0 0 0
+#       ...
+#
+# This board is prunable because the top left corner is only 3 bits in area, no piece will ever fit it
+# parameters:
+#   board -- an initial bit board (6 bit padded rows, see blank_board for format)
+#   location -- starting location, everything above and to the left is already full
+#   slotting -- set to true only when testing initial pieces, when filling normally
+#               additional assumptions are possible
+#
+# Algorithm:
+#    The algorithm starts at the top row (as determined by location) and iterates a row at a time
+#    maintainng counts of active open areas (kept in the collector array) each collector contains
+#    three values at the start of an iteration:
+#          0: mask of bits that would be adjacent to the collector in this row
+#          1: the number of bits collected so far
+#          2: a scratch space starting as zero, but used during the computation to represent
+#             the empty bits in the new row that are adjacent (position 0)
+#  The exact procedure is described in-code
+def prunable( board, location, slotting = false)
+  collectors = []
+  # loop across the rows
+  (location / 6).to_i.upto(9) do | row_on |
+    # obtain a set of regions representing the bits of the current row.
+    regions = $regions[(board >> (row_on * 6)) & 0b11111]
+    converter = $converter[row_on]
+
+    # track the number of collectors at the start of the cycle so that
+    # we don't compute against newly created collectors, only existing collectors
+    initial_collector_count = collectors.length
+
+    # loop against the regions.  For each region of the row
+    # we will see if it connects to one or more existing collectors.
+    # if it connects to 1 collector, the bits from the region are added to the
+    # bits of the collector and the mask is placed in collector[2]
+    # If the region overlaps more than one collector then all the collectors
+    # it overlaps with are merged into the first one (the others are set to nil in the array)
+    # if NO collectors are found then the region is copied as a new collector
+    regions.each do | region |
+      collector_found = nil
+      region_mask = region[2]
+      initial_collector_count.times do | collector_num |
+        collector = collectors[collector_num]
+        if (collector) then
+          collector_mask = collector[0]
+          if (collector_mask & region_mask != 0) then
+            if (collector_found) then
+              collector_found[0] |= collector_mask
+              collector_found[1] += collector[1]
+              collector_found[2] |= collector[2]
+              collectors[collector_num] = nil
+            else
+              collector_found = collector
+              collector[1] += region[1]
+              collector[2] |= region_mask
+            end
+          end
+        end
+      end
+      if (collector_found == nil) then
+        collectors.push(Array.new(region))
+      end
+    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
+    # 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.
+    collectors.length.times do | collector_num |
+      collector = collectors[collector_num]
+      if (collector) then
+        if (collector[2] == 0) then
+          return true if (collector[1] % 5 != 0)
+          collectors[collector_num] = nil
+        else
+          # if a collector matches all bits in the row then we can return unprunable early for the
+          # following reasons:
+          #    1) there can be no more unavailable bits bince we fill from the top left downward
+          #    2) all previous regions have been closed or joined so only this region can fail
+          #    3) this region must be good since there can never be only 1 region that is nuot
+          #       a multiple of five
+          # this rule only applies when filling normally, so we ignore the rule if we are "slotting"
+          # in pieces to see what configurations work for them (the only other time this algorithm is used).
+          return false if (collector[2] == 0b11111 && !slotting)
+          collector[0] = converter[collector[2]]
+          collector[2] = 0
+        end
+      end
+    end
+
+    # get rid of all the empty converters for the next round
+    collectors.compact!
+  end
+  return false if (collectors.length <= 1) # 1 collector or less and the region is fine
+  collectors.any? { | collector | (collector[1] % 5) != 0 } # more than 1 and we test them all for bad size
+end
+
+# creates a region given a row mask.  see prunable for what a "region" is
+def create_regions( value )
+  regions = []
+  cur_region = 0
+  5.times do | bit |
+    if (value[bit] == 0) then
+      cur_region |= 1 << bit
+    else
+      if (cur_region != 0 ) then
+        regions.push( cur_region)
+        cur_region = 0;
+      end
+    end
+  end
+  regions.push(cur_region) if (cur_region != 0)
+  regions
+end
+
+# find up to the counted number of solutions (or all solutions) and prints the final result
+def find_all
+  find_top( 1)
+  find_top( 0)
+  print_results
+end
+
+# show the board
+def print_results
+  print "#{@boards_found} solutions found\n\n"
+  print_full_board( @min_board)
+  print "\n"
+  print_full_board( @max_board)
+  print "\n"
+end
+
+# finds solutions.  This special version of the main function is only used for the top level
+# the reason for it is basically to force a particular ordering on how the rotations are tested for
+# the first piece.  It is called twice, first looking for placements of the odd rotations and then
+# looking for placements of the even locations.
+#
+# WHY?
+#   Since any found solution has an inverse we want to maximize finding solutions that are not already found
+#   as an inverse.  The inverse will ALWAYS be 3 one of the piece configurations that is exactly 3 rotations away
+#   (an odd number).  Checking even vs odd then produces a higher probability of finding more pieces earlier
+#   in the cycle.  We still need to keep checking all the permutations, but our probability of finding one will
+#   diminsh over time.  Since we are TOLD how many to search for this lets us exit before checking all pieces
+#   this bennifit is very great when seeking small numbers of solutions and is 0 when looking for more than the
+#   maximum number
+def find_top( rotation_skip)
+  board = blank_board
+  (@pieces.length-1).times do
+    piece = @pieces.shift
+    piece.masks[0].each do | mask, imask, cmask |
+      if ((rotation_skip += 1) % 2 == 0) then
+        piece.placed = mask
+        find( 1, 1, board | mask)
+      end
+    end
+    @pieces.push(piece)
+  end
+  piece = @pieces.shift
+  @pieces.push(piece)
+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
+# 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
+#  placed -- number of pieces placed
+#  board -- current state of the board
+#
+# see in-code comments
+def find( start_location, placed, board)
+  # find the next location to place a piece by looking for an empty bit
+  while board[start_location] == 1
+    start_location += 1
+  end
+
+  @pieces.length.times do
+    piece = @pieces.shift
+    piece.masks[start_location].each do | mask, imask, cmask |
+      if ( board & cmask == imask) then
+        piece.placed = mask
+        if (placed == 9) then
+          add_board
+        else
+          find( start_location + 1, placed + 1, board | mask)
+        end
+      end
+    end
+    @pieces.push(piece)
+  end
+end
+
+# print the board
+def print_full_board( board_string)
+  10.times do | row |
+    print " " if (row % 2 == 1)
+    5.times do | col |
+      print "#{board_string[row*5 + col,1]} "
+    end
+    print "\n"
+  end
+end
+
+# when a board is found we "draw it" into a string and then flip that string, adding both to
+# the list (hash) of solutions if they are unique.
+def add_board
+  board_string = "99999999999999999999999999999999999999999999999999"
+  @all_pieces.each {  | piece | piece.fill_string( board_string ) }
+  save( board_string)
+  save( board_string.reverse)
+end
+
+# adds a board string to the list (if new) and updates the current best/worst board
+def save( board_string)
+  if (@all_boards[board_string] == nil) then
+    @min_board = board_string if (board_string < @min_board)
+    @max_board = board_string if (board_string > @max_board)
+    @all_boards.store(board_string,true)
+    @boards_found += 1
+
+    # the exit motif is a time saver.  Ideally the function should return, but those tests
+    # take noticeable time (performance).
+    if (@boards_found == @stop_count) then
+      print_results
+      exit(0)
+    end
+  end
+end
+
+
+##
+## MAIN BODY :)
+##
+create_collector_support
+@pieces = [
+  Piece.new( [ :nw, :ne, :east, :east ], 2),
+  Piece.new( [ :ne, :se, :east, :ne ], 7),
+  Piece.new( [ :ne, :east, :ne, :nw ], 1),
+  Piece.new( [ :east, :sw, :sw, :se ], 6),
+  Piece.new( [ :east, :ne, :se, :ne ], 5),
+  Piece.new( [ :east, :east, :east, :se ], 0),
+  Piece.new( [ :ne, :nw, :se, :east, :se ], 4),
+  Piece.new( [ :se, :se, :se, :west ], 9),
+  Piece.new( [ :se, :se, :east, :se ], 8),
+  Piece.new( [ :east, :east, :sw, :se ], 3)
+  ];
+
+@all_pieces = Array.new( @pieces)
+
+@min_board = "99999999999999999999999999999999999999999999999999"
+@max_board = "00000000000000000000000000000000000000000000000000"
+@stop_count = ARGV[0].to_i || 2089
+@all_boards = {}
+@boards_found = 0
+
+find_all ######## DO IT!!!
diff --git a/benchmark/bm_so_nbody.rb b/benchmark/bm_so_nbody.rb
new file mode 100644
index 0000000000..d6c5bb9e61
--- /dev/null
+++ b/benchmark/bm_so_nbody.rb
@@ -0,0 +1,148 @@
+# The Computer Language Shootout
+# http://shootout.alioth.debian.org
+#
+# Optimized for Ruby by Jesse Millikan
+# From version ported by Michael Neumann from the C gcc version,
+# which was written by Christoph Bauer.
+
+SOLAR_MASS = 4 * Math::PI**2
+DAYS_PER_YEAR = 365.24
+
+def _puts *args
+end
+
+class Planet
+ attr_accessor :x, :y, :z, :vx, :vy, :vz, :mass
+
+ def initialize(x, y, z, vx, vy, vz, mass)
+  @x, @y, @z = x, y, z
+  @vx, @vy, @vz = vx * DAYS_PER_YEAR, vy * DAYS_PER_YEAR, vz * DAYS_PER_YEAR
+  @mass = mass * SOLAR_MASS
+ end
+
+ def move_from_i(bodies, nbodies, dt, i)
+  while i < nbodies
+   b2 = bodies[i]
+   dx = @x - b2.x
+   dy = @y - b2.y
+   dz = @z - b2.z
+
+   distance = Math.sqrt(dx * dx + dy * dy + dz * dz)
+   mag = dt / (distance * distance * distance)
+   b_mass_mag, b2_mass_mag = @mass * mag, b2.mass * mag
+
+   @vx -= dx * b2_mass_mag
+   @vy -= dy * b2_mass_mag
+   @vz -= dz * b2_mass_mag
+   b2.vx += dx * b_mass_mag
+   b2.vy += dy * b_mass_mag
+   b2.vz += dz * b_mass_mag
+   i += 1
+  end
+
+  @x += dt * @vx
+  @y += dt * @vy
+  @z += dt * @vz
+ end
+end
+
+def energy(bodies)
+  e = 0.0
+  nbodies = bodies.size
+
+  for i in 0 ... nbodies
+    b = bodies[i]
+    e += 0.5 * b.mass * (b.vx * b.vx + b.vy * b.vy + b.vz * b.vz)
+    for j in (i + 1) ... nbodies
+      b2 = bodies[j]
+      dx = b.x - b2.x
+      dy = b.y - b2.y
+      dz = b.z - b2.z
+      distance = Math.sqrt(dx * dx + dy * dy + dz * dz)
+      e -= (b.mass * b2.mass) / distance
+    end
+  end
+  e
+end
+
+def offset_momentum(bodies)
+  px, py, pz = 0.0, 0.0, 0.0
+
+  for b in bodies
+    m = b.mass
+    px += b.vx * m
+    py += b.vy * m
+    pz += b.vz * m
+  end
+
+  b = bodies[0]
+  b.vx = - px / SOLAR_MASS
+  b.vy = - py / SOLAR_MASS
+  b.vz = - pz / SOLAR_MASS
+end
+
+BODIES = [
+  # sun
+  Planet.new(0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0),
+
+  # jupiter
+  Planet.new(
+    4.84143144246472090e+00,
+    -1.16032004402742839e+00,
+    -1.03622044471123109e-01,
+    1.66007664274403694e-03,
+    7.69901118419740425e-03,
+    -6.90460016972063023e-05,
+    9.54791938424326609e-04),
+
+  # saturn
+  Planet.new(
+    8.34336671824457987e+00,
+    4.12479856412430479e+00,
+    -4.03523417114321381e-01,
+    -2.76742510726862411e-03,
+    4.99852801234917238e-03,
+    2.30417297573763929e-05,
+    2.85885980666130812e-04),
+
+  # uranus
+  Planet.new(
+    1.28943695621391310e+01,
+    -1.51111514016986312e+01,
+    -2.23307578892655734e-01,
+    2.96460137564761618e-03,
+    2.37847173959480950e-03,
+    -2.96589568540237556e-05,
+    4.36624404335156298e-05),
+
+  # neptune
+  Planet.new(
+    1.53796971148509165e+01,
+    -2.59193146099879641e+01,
+    1.79258772950371181e-01,
+    2.68067772490389322e-03,
+    1.62824170038242295e-03,
+    -9.51592254519715870e-05,
+    5.15138902046611451e-05)
+]
+
+init = 200_000 # ARGV[0]
+n = Integer(init)
+
+offset_momentum(BODIES)
+
+puts "%.9f" % energy(BODIES)
+
+nbodies = BODIES.size
+dt = 0.01
+
+n.times do
+  i = 0
+  while i < nbodies
+    b = BODIES[i]
+    b.move_from_i(BODIES, nbodies, dt, i + 1)
+    i += 1
+  end
+end
+
+puts "%.9f" % energy(BODIES)
diff --git a/benchmark/bm_so_nested_loop.rb b/benchmark/bm_so_nested_loop.rb
new file mode 100644
index 0000000000..a0513f8c47
--- /dev/null
+++ b/benchmark/bm_so_nested_loop.rb
@@ -0,0 +1,24 @@
+#!/usr/bin/ruby
+# -*- mode: ruby -*-
+# $Id: nestedloop-ruby.code,v 1.4 2004/11/13 07:42:22 bfulgham Exp $
+# http://www.bagley.org/~doug/shootout/
+# from Avi Bryant
+
+n = 16 # Integer(ARGV.shift || 1)
+x = 0
+n.times do
+    n.times do
+        n.times do
+            n.times do
+                n.times do
+                    n.times do
+                        x += 1
+                    end
+                end
+            end
+        end
+    end
+end
+# puts x
+
+
diff --git a/benchmark/bm_so_nsieve.rb b/benchmark/bm_so_nsieve.rb
new file mode 100644
index 0000000000..a65cc78233
--- /dev/null
+++ b/benchmark/bm_so_nsieve.rb
@@ -0,0 +1,35 @@
+# The Computer Language Shootout
+# http://shootout.alioth.debian.org/
+#
+# contributed by Glenn Parker, March 2005
+# modified by Evan Phoenix, Sept 2006
+
+def sieve(m)
+  flags = Flags.dup[0,m]
+  count = 0
+  pmax = m - 1
+  p = 2
+  while p <= pmax
+    unless flags[p].zero?
+      count += 1
+      mult = p
+      while mult <= pmax
+        flags[mult] = 0
+        mult += p
+      end
+    end
+    p += 1
+  end
+  count
+end
+
+n = 9 # (ARGV[0] || 2).to_i
+Flags = ("\x1" * ( 2 ** n * 10_000)).unpack("c*")
+
+n.downto(n-2) do |exponent|
+  break if exponent < 0
+  m = (1 << exponent) * 10_000
+  # m = (2 ** exponent) * 10_000
+  count = sieve(m)
+  printf "Primes up to %8d %8d\n", m, count
+end
diff --git a/benchmark/bm_so_nsieve_bits.rb b/benchmark/bm_so_nsieve_bits.rb
new file mode 100644
index 0000000000..6f958ee44e
--- /dev/null
+++ b/benchmark/bm_so_nsieve_bits.rb
@@ -0,0 +1,43 @@
+#!/usr/bin/ruby
+#coding: us-ascii
+#
+# The Great Computer Language Shootout
+# http://shootout.alioth.debian.org/
+#
+# nsieve-bits in Ruby
+# Contributed by Glenn Parker, March 2005
+
+CharExponent = 3
+BitsPerChar = 1 << CharExponent
+LowMask = BitsPerChar - 1
+
+def sieve(m)
+  items = "\xFF" * ((m / BitsPerChar) + 1)
+  masks = ""
+  BitsPerChar.times do |b|
+    masks << (1 << b).chr
+  end
+
+  count = 0
+  pmax = m - 1
+  2.step(pmax, 1) do |p|
+    if items[p >> CharExponent][p & LowMask] == 1
+      count += 1
+      p.step(pmax, p) do |mult|
+	a = mult >> CharExponent
+	b = mult & LowMask
+	items[a] -= masks[b] if items[a][b] != 0
+      end
+    end
+  end
+  count
+end
+
+n = 9 # (ARGV[0] || 2).to_i
+n.step(n - 2, -1) do |exponent|
+  break if exponent < 0
+  m = 2 ** exponent * 10_000
+  count = sieve(m)
+  printf "Primes up to %8d %8d\n", m, count
+end
+
diff --git a/benchmark/bm_so_object.rb b/benchmark/bm_so_object.rb
new file mode 100644
index 0000000000..e8607c7199
--- /dev/null
+++ b/benchmark/bm_so_object.rb
@@ -0,0 +1,56 @@
+#!/usr/bin/ruby
+# -*- mode: ruby -*-
+# $Id: objinst-ruby.code,v 1.4 2004/11/13 07:42:25 bfulgham Exp $
+# http://www.bagley.org/~doug/shootout/
+# with help from Aristarkh Zagorodnikov
+
+class Toggle
+    def initialize(start_state)
+        @bool = start_state
+    end
+
+    def value
+        @bool
+    end
+
+    def activate
+        @bool = !@bool
+        self
+    end
+end
+
+class NthToggle < Toggle
+    def initialize(start_state, max_counter)
+        super start_state
+        @count_max = max_counter
+        @counter = 0
+    end
+
+    def activate
+        @counter += 1
+        if @counter >= @count_max
+            @bool = !@bool
+            @counter = 0
+        end
+        self
+    end
+end
+
+n = 1500000 # (ARGV.shift || 1).to_i
+
+toggle = Toggle.new 1
+5.times do
+    toggle.activate.value ? 'true' : 'false'
+end
+n.times do
+    toggle = Toggle.new 1
+end
+
+ntoggle = NthToggle.new 1, 3
+8.times do
+    ntoggle.activate.value ? 'true' : 'false'
+end
+n.times do
+    ntoggle = NthToggle.new 1, 3
+end
+
diff --git a/benchmark/bm_so_partial_sums.rb b/benchmark/bm_so_partial_sums.rb
new file mode 100644
index 0000000000..630b45cb8d
--- /dev/null
+++ b/benchmark/bm_so_partial_sums.rb
@@ -0,0 +1,31 @@
+n = 2_500_000 # (ARGV.shift || 1).to_i
+
+alt = 1.0 ; s0 = s1 = s2 = s3 = s4 = s5 = s6 = s7 = s8 = 0.0
+
+1.upto(n) do |d|
+  d = d.to_f ; d2 = d * d ; d3 = d2 * d ; ds = Math.sin(d) ; dc = Math.cos(d)
+
+  s0 += (2.0 / 3.0) ** (d - 1.0)
+  s1 += 1.0 / Math.sqrt(d)
+  s2 += 1.0 / (d * (d + 1.0))
+  s3 += 1.0 / (d3 * ds * ds)
+  s4 += 1.0 / (d3 * dc * dc)
+  s5 += 1.0 / d
+  s6 += 1.0 / d2
+  s7 += alt / d
+  s8 += alt / (2.0 * d - 1.0)
+
+  alt = -alt
+end
+
+if false
+  printf("%.9f\t(2/3)^k\n", s0)
+  printf("%.9f\tk^-0.5\n", s1)
+  printf("%.9f\t1/k(k+1)\n", s2)
+  printf("%.9f\tFlint Hills\n", s3)
+  printf("%.9f\tCookson Hills\n", s4)
+  printf("%.9f\tHarmonic\n", s5)
+  printf("%.9f\tRiemann Zeta\n", s6)
+  printf("%.9f\tAlternating Harmonic\n", s7)
+  printf("%.9f\tGregory\n", s8)
+end
diff --git a/benchmark/bm_so_pidigits.rb b/benchmark/bm_so_pidigits.rb
new file mode 100644
index 0000000000..c7d6fbfb4d
--- /dev/null
+++ b/benchmark/bm_so_pidigits.rb
@@ -0,0 +1,92 @@
+# The Great Computer Language Shootout
+# http://shootout.alioth.debian.org/
+#
+# contributed by Gabriele Renzi
+
+class PiDigitSpigot
+
+    def initialize()
+        @z = Transformation.new 1,0,0,1
+        @x = Transformation.new 0,0,0,0
+        @inverse = Transformation.new 0,0,0,0
+    end
+
+    def next!
+        @y = @z.extract(3)
+        if safe? @y
+            @z = produce(@y)
+            @y
+        else
+            @z = consume @x.next!()
+            next!()
+        end
+    end
+
+    def safe?(digit)
+        digit == @z.extract(4)
+    end
+
+    def produce(i)
+        @inverse.qrst(10,-10*i,0,1).compose(@z)
+    end
+
+    def consume(a)
+        @z.compose(a)
+    end
+end
+
+
+class Transformation
+    attr_reader :q, :r, :s, :t
+    def initialize (q, r, s, t)
+        @q,@r,@s,@t,@k = q,r,s,t,0
+    end
+
+    def next!()
+        @q = @k = @k + 1
+        @r = 4 * @k + 2
+        @s = 0
+        @t = 2 * @k + 1
+        self
+    end
+
+    def extract(j)
+        (@q * j + @r) / (@s * j + @t)
+    end
+
+    def compose(a)
+        self.class.new( @q * a.q,
+                        @q * a.r + r * a.t,
+                        @s * a.q + t * a.s,
+                        @s * a.r + t * a.t
+                    )
+    end
+
+    def qrst *args
+        initialize *args
+        self
+    end
+
+
+end
+
+
+WIDTH = 10
+n = 2_500 # Integer(ARGV[0])
+j = 0
+
+digits = PiDigitSpigot.new
+
+while n > 0
+    if n >= WIDTH
+        WIDTH.times {print digits.next!}
+        j += WIDTH
+    else
+        n.times {print digits.next!}
+        (WIDTH-n).times {print " "}
+        j += n
+    end
+    puts "\t:"+j.to_s
+    n -= WIDTH
+end
+
diff --git a/benchmark/bm_so_random.rb b/benchmark/bm_so_random.rb
new file mode 100644
index 0000000000..a66b9e8e63
--- /dev/null
+++ b/benchmark/bm_so_random.rb
@@ -0,0 +1,20 @@
+# from http://www.bagley.org/~doug/shootout/bench/random/random.ruby
+
+IM = 139968.0
+IA = 3877.0
+IC = 29573.0
+
+$last = 42.0
+
+def gen_random(max)
+  (max * ($last = ($last * IA + IC) % IM)) / IM
+end
+
+N = 3_000_000
+
+i = 0
+while i<N
+  i +=1
+  gen_random(100.0)
+end
+# "%.9f" % gen_random(100.0)
diff --git a/benchmark/bm_so_reverse_complement.rb b/benchmark/bm_so_reverse_complement.rb
new file mode 100644
index 0000000000..82ea666994
--- /dev/null
+++ b/benchmark/bm_so_reverse_complement.rb
@@ -0,0 +1,30 @@
+#!/usr/bin/ruby
+# The Great Computer Language Shootout
+# http://shootout.alioth.debian.org/
+#
+# Contributed by Peter Bjarke Olsen
+# Modified by Doug King
+
+seq=Array.new
+
+def revcomp(seq)
+  seq.reverse!.tr!('wsatugcyrkmbdhvnATUGCYRKMBDHVN','WSTAACGRYMKVHDBNTAACGRYMKVHDBN')
+  stringlen=seq.length
+  0.step(stringlen-1,60) {|x| print seq.slice(x,60) , "\n"}
+end
+
+input = open(File.join(File.dirname($0), 'fasta.output.2500000'), 'rb')
+
+while input.gets
+  if $_ =~ />/
+    if seq.length != 0
+      revcomp(seq.join)
+      seq=Array.new
+    end
+    puts $_
+  else
+    $_.sub(/\n/,'')
+    seq.push $_
+  end
+end
+revcomp(seq.join)
diff --git a/benchmark/bm_so_sieve.rb b/benchmark/bm_so_sieve.rb
new file mode 100644
index 0000000000..43dc302648
--- /dev/null
+++ b/benchmark/bm_so_sieve.rb
@@ -0,0 +1,24 @@
+# from http://www.bagley.org/~doug/shootout/bench/sieve/sieve.ruby
+num = 500
+count = i = j = 0
+flags0 = Array.new(8192,1)
+k = 0
+while k < num
+  k += 1
+  count = 0
+  flags = flags0.dup
+  i = 2
+  while i<8192
+    i += 1
+    if flags[i]
+      # remove all multiples of prime: i
+      j = i*i
+      while j < 8192
+        j += i
+        flags[j] = nil
+      end
+      count += 1
+    end
+  end
+end
+count
diff --git a/benchmark/bm_so_spectralnorm.rb b/benchmark/bm_so_spectralnorm.rb
new file mode 100644
index 0000000000..6b97206689
--- /dev/null
+++ b/benchmark/bm_so_spectralnorm.rb
@@ -0,0 +1,50 @@
+# The Computer Language Shootout
+# http://shootout.alioth.debian.org/
+# Contributed by Sokolov Yura
+
+def eval_A(i,j)
+	return 1.0/((i+j)*(i+j+1)/2+i+1)
+end
+
+def eval_A_times_u(u)
+        v, i = nil, nil
+	(0..u.length-1).collect { |i|
+                v = 0
+		for j in 0..u.length-1
+			v += eval_A(i,j)*u[j]
+                end
+                v
+        }
+end
+
+def eval_At_times_u(u)
+	v, i = nil, nil
+	(0..u.length-1).collect{|i|
+                v = 0
+		for j in 0..u.length-1
+			v += eval_A(j,i)*u[j]
+                end
+                v
+        }
+end
+
+def eval_AtA_times_u(u)
+	return eval_At_times_u(eval_A_times_u(u))
+end
+
+n = 500 # ARGV[0].to_i
+
+u=[1]*n
+for i in 1..10
+        v=eval_AtA_times_u(u)
+        u=eval_AtA_times_u(v)
+end
+vBv=0
+vv=0
+for i in 0..n-1
+        vBv += u[i]*v[i]
+        vv += v[i]*v[i]
+end
+
+str = "%0.9f" % (Math.sqrt(vBv/vv)), "\n"
+# print str
diff --git a/benchmark/bm_vm1_attr_ivar.rb b/benchmark/bm_vm1_attr_ivar.rb
new file mode 100644
index 0000000000..16906f3605
--- /dev/null
+++ b/benchmark/bm_vm1_attr_ivar.rb
@@ -0,0 +1,14 @@
+class C
+  attr_reader :a, :b
+  def initialize
+    @a = nil
+    @b = nil
+  end
+end
+obj = C.new
+i = 0
+while i<30_000_000 # while loop 1
+  i += 1
+  j = obj.a
+  k = obj.b
+end
diff --git a/benchmark/bm_vm1_attr_ivar_set.rb b/benchmark/bm_vm1_attr_ivar_set.rb
new file mode 100644
index 0000000000..7e7a6b48c0
--- /dev/null
+++ b/benchmark/bm_vm1_attr_ivar_set.rb
@@ -0,0 +1,14 @@
+class C
+  attr_accessor :a, :b
+  def initialize
+    @a = nil
+    @b = nil
+  end
+end
+obj = C.new
+i = 0
+while i<30_000_000 # while loop 1
+  i += 1
+  obj.a = 1
+  obj.b = 2
+end
diff --git a/benchmark/bm_vm1_block.rb b/benchmark/bm_vm1_block.rb
new file mode 100644
index 0000000000..a9f56b15ea
--- /dev/null
+++ b/benchmark/bm_vm1_block.rb
@@ -0,0 +1,10 @@
+def m
+  yield
+end
+
+i = 0
+while i<30_000_000 # while loop 1
+  i += 1
+  m{
+  }
+end
diff --git a/benchmark/bm_vm1_const.rb b/benchmark/bm_vm1_const.rb
new file mode 100644
index 0000000000..ac59ebccf1
--- /dev/null
+++ b/benchmark/bm_vm1_const.rb
@@ -0,0 +1,8 @@
+Const = 1
+
+i = 0
+while i<30_000_000 # while loop 1
+  i += 1
+  j = Const
+  k = Const
+end
diff --git a/benchmark/bm_vm1_ensure.rb b/benchmark/bm_vm1_ensure.rb
new file mode 100644
index 0000000000..a1596145f2
--- /dev/null
+++ b/benchmark/bm_vm1_ensure.rb
@@ -0,0 +1,11 @@
+i = 0
+while i<30_000_000 # benchmark loop 1
+  i += 1
+  begin
+    begin
+    ensure
+    end
+  ensure
+  end
+end
+
diff --git a/benchmark/bm_vm1_float_simple.rb b/benchmark/bm_vm1_float_simple.rb
new file mode 100644
index 0000000000..d4581439ff
--- /dev/null
+++ b/benchmark/bm_vm1_float_simple.rb
@@ -0,0 +1,7 @@
+i = 0.0; f = 0.0
+while i<30_000_000
+  i += 1
+  f += 0.1; f -= 0.1
+  f += 0.1; f -= 0.1
+  f += 0.1; f -= 0.1
+end
diff --git a/benchmark/bm_vm1_gc_short_lived.rb b/benchmark/bm_vm1_gc_short_lived.rb
new file mode 100644
index 0000000000..e78bca5668
--- /dev/null
+++ b/benchmark/bm_vm1_gc_short_lived.rb
@@ -0,0 +1,10 @@
+i = 0
+while i<30_000_000 # while loop 1
+  a = '' # short-lived String
+  b = ''
+  c = ''
+  d = ''
+  e = ''
+  f = ''
+  i+=1
+end
diff --git a/benchmark/bm_vm1_gc_short_with_complex_long.rb b/benchmark/bm_vm1_gc_short_with_complex_long.rb
new file mode 100644
index 0000000000..b66052dee0
--- /dev/null
+++ b/benchmark/bm_vm1_gc_short_with_complex_long.rb
@@ -0,0 +1,27 @@
+def nested_hash h, n
+  if n == 0
+    ''
+  else
+    10.times{
+      h[Object.new] = nested_hash(h, n-1)
+    }
+  end
+end
+
+long_lived = Hash.new
+nested_hash long_lived, 6
+
+GC.start
+GC.start
+
+i = 0
+while i<30_000_000 # while loop 1
+  a = '' # short-lived String
+  b = ''
+  c = ''
+  d = ''
+  e = ''
+  f = ''
+  i+=1
+end
+
diff --git a/benchmark/bm_vm1_gc_short_with_long.rb b/benchmark/bm_vm1_gc_short_with_long.rb
new file mode 100644
index 0000000000..298dbc845b
--- /dev/null
+++ b/benchmark/bm_vm1_gc_short_with_long.rb
@@ -0,0 +1,13 @@
+long_lived = Array.new(1_000_000){|i| "#{i}"}
+GC.start
+GC.start
+i = 0
+while i<30_000_000 # while loop 1
+  a = '' # short-lived String
+  b = ''
+  c = ''
+  d = ''
+  e = ''
+  f = ''
+  i+=1
+end
diff --git a/benchmark/bm_vm1_gc_short_with_symbol.rb b/benchmark/bm_vm1_gc_short_with_symbol.rb
new file mode 100644
index 0000000000..6b15c1b7bf
--- /dev/null
+++ b/benchmark/bm_vm1_gc_short_with_symbol.rb
@@ -0,0 +1,15 @@
+# make many symbols
+50_000.times{|i| sym = "sym#{i}".to_sym}
+GC.start
+GC.start
+
+i = 0
+while i<30_000_000 # while loop 1
+  a = '' # short-lived String
+  b = ''
+  c = ''
+  d = ''
+  e = ''
+  f = ''
+  i+=1
+end
diff --git a/benchmark/bm_vm1_gc_wb_ary.rb b/benchmark/bm_vm1_gc_wb_ary.rb
new file mode 100644
index 0000000000..881528845b
--- /dev/null
+++ b/benchmark/bm_vm1_gc_wb_ary.rb
@@ -0,0 +1,12 @@
+short_lived_ary = []
+
+if RUBY_VERSION >= "2.2.0"
+  GC.start(full_mark: false, immediate_mark: true, lazy_sweep: false)
+end
+
+i = 0
+short_lived = ''
+while i<30_000_000 # while loop 1
+  short_lived_ary[0] = short_lived # write barrier
+  i+=1
+end
diff --git a/benchmark/bm_vm1_gc_wb_ary_promoted.rb b/benchmark/bm_vm1_gc_wb_ary_promoted.rb
new file mode 100644
index 0000000000..3c8279c956
--- /dev/null
+++ b/benchmark/bm_vm1_gc_wb_ary_promoted.rb
@@ -0,0 +1,14 @@
+long_lived = []
+
+if RUBY_VERSION > "2.2.0"
+  3.times{ GC.start(full_mark: false, immediate_mark: true, lazy_sweep: false) }
+elsif
+  GC.start
+end
+
+i = 0
+short_lived = ''
+while i<30_000_000 # while loop 1
+  long_lived[0] = short_lived # write barrier
+  i+=1
+end
diff --git a/benchmark/bm_vm1_gc_wb_obj.rb b/benchmark/bm_vm1_gc_wb_obj.rb
new file mode 100644
index 0000000000..a4067af36b
--- /dev/null
+++ b/benchmark/bm_vm1_gc_wb_obj.rb
@@ -0,0 +1,15 @@
+class C
+  attr_accessor :foo
+end
+short_lived_obj = C.new
+
+if RUBY_VERSION >= "2.2.0"
+  GC.start(full_mark: false, immediate_mark: true, lazy_sweep: false)
+end
+
+i = 0
+short_lived = ''
+while i<30_000_000 # while loop 1
+  short_lived_obj.foo = short_lived # write barrier
+  i+=1
+end
diff --git a/benchmark/bm_vm1_gc_wb_obj_promoted.rb b/benchmark/bm_vm1_gc_wb_obj_promoted.rb
new file mode 100644
index 0000000000..eee07a0248
--- /dev/null
+++ b/benchmark/bm_vm1_gc_wb_obj_promoted.rb
@@ -0,0 +1,17 @@
+class C
+  attr_accessor :foo
+end
+long_lived = C.new
+
+if RUBY_VERSION >= "2.2.0"
+  3.times{ GC.start(full_mark: false, immediate_mark: true, lazy_sweep: false) }
+elsif
+  GC.start
+end
+
+i = 0
+short_lived = ''
+while i<30_000_000 # while loop 1
+  long_lived.foo = short_lived # write barrier
+  i+=1
+end
diff --git a/benchmark/bm_vm1_ivar.rb b/benchmark/bm_vm1_ivar.rb
new file mode 100644
index 0000000000..68a73cf92f
--- /dev/null
+++ b/benchmark/bm_vm1_ivar.rb
@@ -0,0 +1,8 @@
+@a = 1
+
+i = 0
+while i<30_000_000 # while loop 1
+  i += 1
+  j = @a
+  k = @a
+end
diff --git a/benchmark/bm_vm1_ivar_set.rb b/benchmark/bm_vm1_ivar_set.rb
new file mode 100644
index 0000000000..bd81b06c34
--- /dev/null
+++ b/benchmark/bm_vm1_ivar_set.rb
@@ -0,0 +1,6 @@
+i = 0
+while i<30_000_000 # while loop 1
+  i += 1
+  @a = 1
+  @b = 2
+end
diff --git a/benchmark/bm_vm1_length.rb b/benchmark/bm_vm1_length.rb
new file mode 100644
index 0000000000..353de3ab0e
--- /dev/null
+++ b/benchmark/bm_vm1_length.rb
@@ -0,0 +1,9 @@
+a = 'abc'
+b = [1, 2, 3]
+i = 0
+while i<30_000_000 # while loop 1
+  i += 1
+  a.length
+  b.length
+end
+
diff --git a/benchmark/bm_vm1_lvar_init.rb b/benchmark/bm_vm1_lvar_init.rb
new file mode 100644
index 0000000000..36f2068811
--- /dev/null
+++ b/benchmark/bm_vm1_lvar_init.rb
@@ -0,0 +1,18 @@
+def m v
+  unless v
+    # unreachable code
+    v1 = v2 = v3 = v4 = v5 = v6 = v7 = v8 = v9 = v10 =
+    v11 = v12 = v13 = v14 = v15 = v16 = v17 = v18 = v19 = v20 =
+    v21 = v22 = v23 = v24 = v25 = v26 = v27 = v28 = v29 = v30 =
+    v31 = v32 = v33 = v34 = v35 = v36 = v37 = v38 = v39 = v40 =
+    v41 = v42 = v43 = v44 = v45 = v46 = v47 = v48 = v49 = v50 = 1
+  end
+end
+
+i = 0
+
+while i<30_000_000 # while loop 1
+  i += 1
+  m i
+end
+
diff --git a/benchmark/bm_vm1_lvar_set.rb b/benchmark/bm_vm1_lvar_set.rb
new file mode 100644
index 0000000000..222e864134
--- /dev/null
+++ b/benchmark/bm_vm1_lvar_set.rb
@@ -0,0 +1,5 @@
+i = 0
+while i<30_000_000 # while loop 1
+  i += 1
+  a = b = c = d = e = f = g = h = j = k = l = m = n = o = p = q = r = 1
+end
diff --git a/benchmark/bm_vm1_neq.rb b/benchmark/bm_vm1_neq.rb
new file mode 100644
index 0000000000..bbb4ae07a4
--- /dev/null
+++ b/benchmark/bm_vm1_neq.rb
@@ -0,0 +1,8 @@
+i = 0
+obj1 = Object.new
+obj2 = Object.new
+
+while i<30_000_000 # while loop 1
+  i += 1
+  obj1 != obj2
+end
diff --git a/benchmark/bm_vm1_not.rb b/benchmark/bm_vm1_not.rb
new file mode 100644
index 0000000000..b09ecdcc21
--- /dev/null
+++ b/benchmark/bm_vm1_not.rb
@@ -0,0 +1,7 @@
+i = 0
+obj = Object.new
+
+while i<30_000_000 # while loop 1
+  i += 1
+  !obj
+end
diff --git a/benchmark/bm_vm1_rescue.rb b/benchmark/bm_vm1_rescue.rb
new file mode 100644
index 0000000000..b0d3e2bdfa
--- /dev/null
+++ b/benchmark/bm_vm1_rescue.rb
@@ -0,0 +1,7 @@
+i = 0
+while i<30_000_000 # while loop 1
+  i += 1
+  begin
+  rescue
+  end
+end
diff --git a/benchmark/bm_vm1_simplereturn.rb b/benchmark/bm_vm1_simplereturn.rb
new file mode 100644
index 0000000000..63f9f21675
--- /dev/null
+++ b/benchmark/bm_vm1_simplereturn.rb
@@ -0,0 +1,9 @@
+def m
+  return 1
+end
+i = 0
+while i<30_000_000 # while loop 1
+  i += 1
+  m
+end
+
diff --git a/benchmark/bm_vm1_swap.rb b/benchmark/bm_vm1_swap.rb
new file mode 100644
index 0000000000..918f8b2112
--- /dev/null
+++ b/benchmark/bm_vm1_swap.rb
@@ -0,0 +1,8 @@
+a = 1
+b = 2
+i = 0
+while i<30_000_000 # while loop 1
+  i += 1
+  a, b = b, a
+end
+
diff --git a/benchmark/bm_vm1_yield.rb b/benchmark/bm_vm1_yield.rb
new file mode 100644
index 0000000000..775597cea6
--- /dev/null
+++ b/benchmark/bm_vm1_yield.rb
@@ -0,0 +1,10 @@
+def m
+  i = 0
+  while i<30_000_000 # while loop 1
+    i += 1
+    yield
+  end
+end
+
+m{}
+
diff --git a/benchmark/bm_vm2_array.rb b/benchmark/bm_vm2_array.rb
new file mode 100644
index 0000000000..df9037c83c
--- /dev/null
+++ b/benchmark/bm_vm2_array.rb
@@ -0,0 +1,5 @@
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  a = [1,2,3,4,5,6,7,8,9,10]
+end
diff --git a/benchmark/bm_vm2_bigarray.rb b/benchmark/bm_vm2_bigarray.rb
new file mode 100644
index 0000000000..b02509d6a2
--- /dev/null
+++ b/benchmark/bm_vm2_bigarray.rb
@@ -0,0 +1,106 @@
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  a = [
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+    1,2,3,4,5,6,7,8,9,10,
+  ]
+end
diff --git a/benchmark/bm_vm2_bighash.rb b/benchmark/bm_vm2_bighash.rb
new file mode 100644
index 0000000000..5e3f437bb8
--- /dev/null
+++ b/benchmark/bm_vm2_bighash.rb
@@ -0,0 +1,5 @@
+i = 0
+while i<60_000 # benchmark loop 2
+  i += 1
+  a = {0=>0, 1=>1, 2=>2, 3=>3, 4=>4, 5=>5, 6=>6, 7=>7, 8=>8, 9=>9, 10=>10, 11=>11, 12=>12, 13=>13, 14=>14, 15=>15, 16=>16, 17=>17, 18=>18, 19=>19, 20=>20, 21=>21, 22=>22, 23=>23, 24=>24, 25=>25, 26=>26, 27=>27, 28=>28, 29=>29, 30=>30, 31=>31, 32=>32, 33=>33, 34=>34, 35=>35, 36=>36, 37=>37, 38=>38, 39=>39, 40=>40, 41=>41, 42=>42, 43=>43, 44=>44, 45=>45, 46=>46, 47=>47, 48=>48, 49=>49, 50=>50, 51=>51, 52=>52, 53=>53, 54=>54, 55=>55, 56=>56, 57=>57, 58=>58, 59=>59, 60=>60, 61=>61, 62=>62, 63=>63, 64=>64, 65=>65, 66=>66, 67=>67, 68=>68, 69=>69, 70=>70, 71=>71, 72=>72, 73=>73, 74=>74, 75=>75, 76=>76, 77=>77, 78=>78, 79=>79, 80=>80, 81=>81, 82=>82, 83=>83, 84=>84, 85=>85, 86=>86, 87=>87, 88=>88, 89=>89, 90=>90, 91=>91, 92=>92, 93=>93, 94=>94, 95=>95, 96=>96, 97=>97, 98=>98, 99=>99, 100=>100, 101=>101, 102=>102, 103=>103, 104=>104, 105=>105, 106=>106, 107=>107, 108=>108, 109=>109, 110=>110, 111=>111, 112=>112, 113=>113, 114=>114, 115=>115, 116=>116, 117=>117, 118=>118, 119=>119, 120=>120, 121=>121, 122=>122, 123=>123, 124=>124, 125=>125, 126=>126, 127=>127, 128=>128, 129=>129, 130=>130, 131=>131, 132=>132, 133=>133, 134=>134, 135=>135, 136=>136, 137=>137, 138=>138, 139=>139, 140=>140, 141=>141, 142=>142, 143=>143, 144=>144, 145=>145, 146=>146, 147=>147, 148=>148, 149=>149, 150=>150, 151=>151, 152=>152, 153=>153, 154=>154, 155=>155, 156=>156, 157=>157, 158=>158, 159=>159, 160=>160, 161=>161, 162=>162, 163=>163, 164=>164, 165=>165, 166=>166, 167=>167, 168=>168, 169=>169, 170=>170, 171=>171, 172=>172, 173=>173, 174=>174, 175=>175, 176=>176, 177=>177, 178=>178, 179=>179, 180=>180, 181=>181, 182=>182, 183=>183, 184=>184, 185=>185, 186=>186, 187=>187, 188=>188, 189=>189, 190=>190, 191=>191, 192=>192, 193=>193, 194=>194, 195=>195, 196=>196, 197=>197, 198=>198, 199=>199, 200=>200, 201=>201, 202=>202, 203=>203, 204=>204, 205=>205, 206=>206, 207=>207, 208=>208, 209=>209, 210=>210, 211=>211, 212=>212, 213=>213, 214=>214, 215=>215, 216=>216, 217=>217, 218=>218, 219=>219, 220=>220, 221=>221, 222=>222, 223=>223, 224=>224, 225=>225, 226=>226, 227=>227, 228=>228, 229=>229, 230=>230, 231=>231, 232=>232, 233=>233, 234=>234, 235=>235, 236=>236, 237=>237, 238=>238, 239=>239, 240=>240, 241=>241, 242=>242, 243=>243, 244=>244, 245=>245, 246=>246, 247=>247, 248=>248, 249=>249, 250=>250, 251=>251, 252=>252, 253=>253, 254=>254, 255=>255, 256=>256, 257=>257, 258=>258, 259=>259, 260=>260, 261=>261, 262=>262, 263=>263, 264=>264, 265=>265, 266=>266, 267=>267, 268=>268, 269=>269, 270=>270, 271=>271, 272=>272, 273=>273, 274=>274, 275=>275, 276=>276, 277=>277, 278=>278, 279=>279, 280=>280, 281=>281, 282=>282, 283=>283, 284=>284, 285=>285, 286=>286, 287=>287, 288=>288, 289=>289, 290=>290, 291=>291, 292=>292, 293=>293, 294=>294, 295=>295, 296=>296, 297=>297, 298=>298, 299=>299, 300=>300, 301=>301, 302=>302, 303=>303, 304=>304, 305=>305, 306=>306, 307=>307, 308=>308, 309=>309, 310=>310, 311=>311, 312=>312, 313=>313, 314=>314, 315=>315, 316=>316, 317=>317, 318=>318, 319=>319, 320=>320, 321=>321, 322=>322, 323=>323, 324=>324, 325=>325, 326=>326, 327=>327, 328=>328, 329=>329, 330=>330, 331=>331, 332=>332, 333=>333, 334=>334, 335=>335, 336=>336, 337=>337, 338=>338, 339=>339, 340=>340, 341=>341, 342=>342, 343=>343, 344=>344, 345=>345, 346=>346, 347=>347, 348=>348, 349=>349, 350=>350, 351=>351, 352=>352, 353=>353, 354=>354, 355=>355, 356=>356, 357=>357, 358=>358, 359=>359, 360=>360, 361=>361, 362=>362, 363=>363, 364=>364, 365=>365, 366=>366, 367=>367, 368=>368, 369=>369, 370=>370, 371=>371, 372=>372, 373=>373, 374=>374, 375=>375, 376=>376, 377=>377, 378=>378, 379=>379, 380=>380, 381=>381, 382=>382, 383=>383, 384=>384, 385=>385, 386=>386, 387=>387, 388=>388, 389=>389, 390=>390, 391=>391, 392=>392, 393=>393, 394=>394, 395=>395, 396=>396, 397=>397, 398=>398, 399=>399, 400=>400, 401=>401, 402=>402, 403=>403, 404=>404, 405=>405, 406=>406, 407=>407, 408=>408, 409=>409, 410=>410, 411=>411, 412=>412, 413=>413, 414=>414, 415=>415, 416=>416, 417=>417, 418=>418, 419=>419, 420=>420, 421=>421, 422=>422, 423=>423, 424=>424, 425=>425, 426=>426, 427=>427, 428=>428, 429=>429, 430=>430, 431=>431, 432=>432, 433=>433, 434=>434, 435=>435, 436=>436, 437=>437, 438=>438, 439=>439, 440=>440, 441=>441, 442=>442, 443=>443, 444=>444, 445=>445, 446=>446, 447=>447, 448=>448, 449=>449, 450=>450, 451=>451, 452=>452, 453=>453, 454=>454, 455=>455, 456=>456, 457=>457, 458=>458, 459=>459, 460=>460, 461=>461, 462=>462, 463=>463, 464=>464, 465=>465, 466=>466, 467=>467, 468=>468, 469=>469, 470=>470, 471=>471, 472=>472, 473=>473, 474=>474, 475=>475, 476=>476, 477=>477, 478=>478, 479=>479, 480=>480, 481=>481, 482=>482, 483=>483, 484=>484, 485=>485, 486=>486, 487=>487, 488=>488, 489=>489, 490=>490, 491=>491, 492=>492, 493=>493, 494=>494, 495=>495, 496=>496, 497=>497, 498=>498, 499=>499, 500=>500,}
+end
diff --git a/benchmark/bm_vm2_case.rb b/benchmark/bm_vm2_case.rb
new file mode 100644
index 0000000000..adc6e4df0a
--- /dev/null
+++ b/benchmark/bm_vm2_case.rb
@@ -0,0 +1,14 @@
+i = 0
+while i<6_000_000 # while loop 2
+  case :foo
+  when :bar
+    raise
+  when :baz
+    raise
+  when :boo
+    raise
+  when :foo
+    i += 1
+  end
+end
+
diff --git a/benchmark/bm_vm2_case_lit.rb b/benchmark/bm_vm2_case_lit.rb
new file mode 100644
index 0000000000..c62b294e0e
--- /dev/null
+++ b/benchmark/bm_vm2_case_lit.rb
@@ -0,0 +1,19 @@
+i = 0
+@ret = [ "foo", true, false, :sym, 6, nil, 0.1, 0xffffffffffffffff ]
+def foo(i)
+  @ret[i % @ret.size]
+end
+
+while i<6_000_000 # while loop 2
+  case foo(i)
+  when "foo" then :foo
+  when true then true
+  when false then false
+  when :sym then :sym
+  when 6 then :fix
+  when nil then nil
+  when 0.1 then :float
+  when 0xffffffffffffffff then :big
+  end
+  i += 1
+end
diff --git a/benchmark/bm_vm2_defined_method.rb b/benchmark/bm_vm2_defined_method.rb
new file mode 100644
index 0000000000..053ed6c912
--- /dev/null
+++ b/benchmark/bm_vm2_defined_method.rb
@@ -0,0 +1,9 @@
+class Object
+  define_method(:m){}
+end
+
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  m; m; m; m; m; m; m; m;
+end
diff --git a/benchmark/bm_vm2_dstr.rb b/benchmark/bm_vm2_dstr.rb
new file mode 100644
index 0000000000..58c0f7bbc3
--- /dev/null
+++ b/benchmark/bm_vm2_dstr.rb
@@ -0,0 +1,6 @@
+i = 0
+x = y = 'z'
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  str = "foo#{x}bar#{y}baz"
+end
diff --git a/benchmark/bm_vm2_eval.rb b/benchmark/bm_vm2_eval.rb
new file mode 100644
index 0000000000..307cfc28ef
--- /dev/null
+++ b/benchmark/bm_vm2_eval.rb
@@ -0,0 +1,6 @@
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  eval("1")
+end
+
diff --git a/benchmark/bm_vm2_method.rb b/benchmark/bm_vm2_method.rb
new file mode 100644
index 0000000000..a8ccff7138
--- /dev/null
+++ b/benchmark/bm_vm2_method.rb
@@ -0,0 +1,9 @@
+def m
+  nil
+end
+
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  m; m; m; m; m; m; m; m;
+end
diff --git a/benchmark/bm_vm2_method_missing.rb b/benchmark/bm_vm2_method_missing.rb
new file mode 100644
index 0000000000..2badc73101
--- /dev/null
+++ b/benchmark/bm_vm2_method_missing.rb
@@ -0,0 +1,12 @@
+class C
+  def method_missing mid
+  end
+end
+
+obj = C.new
+
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  obj.m; obj.m; obj.m; obj.m; obj.m; obj.m; obj.m; obj.m;
+end
diff --git a/benchmark/bm_vm2_method_with_block.rb b/benchmark/bm_vm2_method_with_block.rb
new file mode 100644
index 0000000000..b4efb4f520
--- /dev/null
+++ b/benchmark/bm_vm2_method_with_block.rb
@@ -0,0 +1,9 @@
+def m
+  nil
+end
+
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  m{}; m{}; m{}; m{}; m{}; m{}; m{}; m{};
+end
diff --git a/benchmark/bm_vm2_mutex.rb b/benchmark/bm_vm2_mutex.rb
new file mode 100644
index 0000000000..5d16480c6b
--- /dev/null
+++ b/benchmark/bm_vm2_mutex.rb
@@ -0,0 +1,9 @@
+require 'thread'
+
+m = Thread::Mutex.new
+
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  m.synchronize{}
+end
diff --git a/benchmark/bm_vm2_newlambda.rb b/benchmark/bm_vm2_newlambda.rb
new file mode 100644
index 0000000000..6422c9b0d0
--- /dev/null
+++ b/benchmark/bm_vm2_newlambda.rb
@@ -0,0 +1,5 @@
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  lambda {}
+end
diff --git a/benchmark/bm_vm2_poly_method.rb b/benchmark/bm_vm2_poly_method.rb
new file mode 100644
index 0000000000..c82c0e4bce
--- /dev/null
+++ b/benchmark/bm_vm2_poly_method.rb
@@ -0,0 +1,20 @@
+class C1
+  def m
+    1
+  end
+end
+class C2
+  def m
+    2
+  end
+end
+
+o1 = C1.new
+o2 = C2.new
+
+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_poly_method_ov.rb b/benchmark/bm_vm2_poly_method_ov.rb
new file mode 100644
index 0000000000..aa5fd1dd38
--- /dev/null
+++ b/benchmark/bm_vm2_poly_method_ov.rb
@@ -0,0 +1,20 @@
+class C1
+  def m
+    1
+  end
+end
+class C2
+  def m
+    2
+  end
+end
+
+o1 = C1.new
+o2 = C2.new
+
+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_proc.rb b/benchmark/bm_vm2_proc.rb
new file mode 100644
index 0000000000..65e5217371
--- /dev/null
+++ b/benchmark/bm_vm2_proc.rb
@@ -0,0 +1,14 @@
+def m &b
+  b
+end
+
+pr = m{
+  a = 1
+}
+
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  pr.call
+end
+
diff --git a/benchmark/bm_vm2_raise1.rb b/benchmark/bm_vm2_raise1.rb
new file mode 100644
index 0000000000..aa5387987f
--- /dev/null
+++ b/benchmark/bm_vm2_raise1.rb
@@ -0,0 +1,18 @@
+def rec n
+  if n > 0
+    rec n-1
+  else
+    raise
+  end
+end
+
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+
+  begin
+    rec 1
+  rescue
+    # ignore
+  end
+end
diff --git a/benchmark/bm_vm2_raise2.rb b/benchmark/bm_vm2_raise2.rb
new file mode 100644
index 0000000000..1f61c63157
--- /dev/null
+++ b/benchmark/bm_vm2_raise2.rb
@@ -0,0 +1,18 @@
+def rec n
+  if n > 0
+    rec n-1
+  else
+    raise
+  end
+end
+
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+
+  begin
+    rec 10
+  rescue
+    # ignore
+  end
+end
diff --git a/benchmark/bm_vm2_regexp.rb b/benchmark/bm_vm2_regexp.rb
new file mode 100644
index 0000000000..55f9e957a3
--- /dev/null
+++ b/benchmark/bm_vm2_regexp.rb
@@ -0,0 +1,6 @@
+i = 0
+str = 'xxxhogexxx'
+while i<6_000_000 # benchmark loop 2
+  /hoge/ =~ str
+  i += 1
+end
diff --git a/benchmark/bm_vm2_send.rb b/benchmark/bm_vm2_send.rb
new file mode 100644
index 0000000000..6a3ab6fdab
--- /dev/null
+++ b/benchmark/bm_vm2_send.rb
@@ -0,0 +1,12 @@
+class C
+  def m
+  end
+end
+
+o = C.new
+
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  o.__send__ :m
+end
diff --git a/benchmark/bm_vm2_string_literal.rb b/benchmark/bm_vm2_string_literal.rb
new file mode 100644
index 0000000000..1d73036849
--- /dev/null
+++ b/benchmark/bm_vm2_string_literal.rb
@@ -0,0 +1,5 @@
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+end
diff --git a/benchmark/bm_vm2_struct_big_aref_hi.rb b/benchmark/bm_vm2_struct_big_aref_hi.rb
new file mode 100644
index 0000000000..22cb26b0a5
--- /dev/null
+++ b/benchmark/bm_vm2_struct_big_aref_hi.rb
@@ -0,0 +1,7 @@
+s = Struct.new(*('a'..'z').map { |x| x.to_sym })
+x = s.new
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x.z # x[25]
+end
diff --git a/benchmark/bm_vm2_struct_big_aref_lo.rb b/benchmark/bm_vm2_struct_big_aref_lo.rb
new file mode 100644
index 0000000000..5e61a7087e
--- /dev/null
+++ b/benchmark/bm_vm2_struct_big_aref_lo.rb
@@ -0,0 +1,7 @@
+s = Struct.new(*('a'..'z').map { |x| x.to_sym })
+x = s.new
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x.k # x[10]
+end
diff --git a/benchmark/bm_vm2_struct_big_aset.rb b/benchmark/bm_vm2_struct_big_aset.rb
new file mode 100644
index 0000000000..5a1c3d16f3
--- /dev/null
+++ b/benchmark/bm_vm2_struct_big_aset.rb
@@ -0,0 +1,7 @@
+s = Struct.new(*('a'..'z').map { |x| x.to_sym })
+x = s.new
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x.k = i # x[10] = i
+end
diff --git a/benchmark/bm_vm2_struct_big_href_hi.rb b/benchmark/bm_vm2_struct_big_href_hi.rb
new file mode 100644
index 0000000000..fff940a80a
--- /dev/null
+++ b/benchmark/bm_vm2_struct_big_href_hi.rb
@@ -0,0 +1,7 @@
+s = Struct.new(*('a'..'z').map { |x| x.to_sym })
+x = s.new
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x[:z]
+end
diff --git a/benchmark/bm_vm2_struct_big_href_lo.rb b/benchmark/bm_vm2_struct_big_href_lo.rb
new file mode 100644
index 0000000000..5e4085d59d
--- /dev/null
+++ b/benchmark/bm_vm2_struct_big_href_lo.rb
@@ -0,0 +1,7 @@
+s = Struct.new(*('a'..'z').map { |x| x.to_sym })
+x = s.new
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x[:k]
+end
diff --git a/benchmark/bm_vm2_struct_big_hset.rb b/benchmark/bm_vm2_struct_big_hset.rb
new file mode 100644
index 0000000000..9c0cee4141
--- /dev/null
+++ b/benchmark/bm_vm2_struct_big_hset.rb
@@ -0,0 +1,7 @@
+s = Struct.new(*('a'..'z').map { |x| x.to_sym })
+x = s.new
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x[:k] = i
+end
diff --git a/benchmark/bm_vm2_struct_small_aref.rb b/benchmark/bm_vm2_struct_small_aref.rb
new file mode 100644
index 0000000000..8eaa555b41
--- /dev/null
+++ b/benchmark/bm_vm2_struct_small_aref.rb
@@ -0,0 +1,7 @@
+s = Struct.new(:a, :b, :c)
+x = s.new
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x.a
+end
diff --git a/benchmark/bm_vm2_struct_small_aset.rb b/benchmark/bm_vm2_struct_small_aset.rb
new file mode 100644
index 0000000000..ecd0f95669
--- /dev/null
+++ b/benchmark/bm_vm2_struct_small_aset.rb
@@ -0,0 +1,7 @@
+s = Struct.new(:a, :b, :c)
+x = s.new
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x.a = i
+end
diff --git a/benchmark/bm_vm2_struct_small_href.rb b/benchmark/bm_vm2_struct_small_href.rb
new file mode 100644
index 0000000000..2c88fee6bf
--- /dev/null
+++ b/benchmark/bm_vm2_struct_small_href.rb
@@ -0,0 +1,7 @@
+s = Struct.new(:a, :b, :c)
+x = s.new
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x[:a]
+end
diff --git a/benchmark/bm_vm2_struct_small_hset.rb b/benchmark/bm_vm2_struct_small_hset.rb
new file mode 100644
index 0000000000..33c36d20f1
--- /dev/null
+++ b/benchmark/bm_vm2_struct_small_hset.rb
@@ -0,0 +1,7 @@
+s = Struct.new(:a, :b, :c)
+x = s.new
+i = 0
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  x[:a] = 1
+end
diff --git a/benchmark/bm_vm2_super.rb b/benchmark/bm_vm2_super.rb
new file mode 100644
index 0000000000..afd8579e7b
--- /dev/null
+++ b/benchmark/bm_vm2_super.rb
@@ -0,0 +1,20 @@
+
+class C
+  def m
+    1
+  end
+end
+
+class CC < C
+  def m
+    super()
+  end
+end
+
+obj = CC.new
+
+i = 0
+while i<6_000_000 # benchmark loop 2
+  obj.m
+  i += 1
+end
diff --git a/benchmark/bm_vm2_unif1.rb b/benchmark/bm_vm2_unif1.rb
new file mode 100644
index 0000000000..1774625942
--- /dev/null
+++ b/benchmark/bm_vm2_unif1.rb
@@ -0,0 +1,8 @@
+i = 0
+def m a, b
+end
+
+while i<6_000_000 # benchmark loop 2
+  i += 1
+  m 100, 200
+end
diff --git a/benchmark/bm_vm2_zsuper.rb b/benchmark/bm_vm2_zsuper.rb
new file mode 100644
index 0000000000..2a43e62217
--- /dev/null
+++ b/benchmark/bm_vm2_zsuper.rb
@@ -0,0 +1,20 @@
+i = 0
+
+class C
+  def m a
+    1
+  end
+end
+
+class CC < C
+  def m a
+    super
+  end
+end
+
+obj = CC.new
+
+while i<6_000_000 # benchmark loop 2
+  obj.m 10
+  i += 1
+end
diff --git a/benchmark/bm_vm3_backtrace.rb b/benchmark/bm_vm3_backtrace.rb
new file mode 100644
index 0000000000..0fbf73e1ca
--- /dev/null
+++ b/benchmark/bm_vm3_backtrace.rb
@@ -0,0 +1,22 @@
+# get last backtrace
+
+begin
+  caller(0, 0)
+rescue ArgumentError
+  alias caller_orig caller
+  def caller lev, n
+    caller_orig(lev)[0..n]
+  end
+end
+
+def rec n
+  if n < 0
+    100_000.times{
+      caller(0, 1)
+    }
+  else
+    rec(n-1)
+  end
+end
+
+rec 50
diff --git a/benchmark/bm_vm3_clearmethodcache.rb b/benchmark/bm_vm3_clearmethodcache.rb
new file mode 100644
index 0000000000..9661323cd2
--- /dev/null
+++ b/benchmark/bm_vm3_clearmethodcache.rb
@@ -0,0 +1,8 @@
+i = 0
+while i<200_000
+  i += 1
+
+  Class.new{
+    def m; end
+  }
+end
diff --git a/benchmark/bm_vm3_gc.rb b/benchmark/bm_vm3_gc.rb
new file mode 100644
index 0000000000..e668026915
--- /dev/null
+++ b/benchmark/bm_vm3_gc.rb
@@ -0,0 +1,6 @@
+5000.times do
+  100.times do
+    {"xxxx"=>"yyyy"}
+  end
+  GC.start
+end
diff --git a/benchmark/bm_vm3_gc_old_full.rb b/benchmark/bm_vm3_gc_old_full.rb
new file mode 100644
index 0000000000..cfdfc8c5a5
--- /dev/null
+++ b/benchmark/bm_vm3_gc_old_full.rb
@@ -0,0 +1,4 @@
+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
new file mode 100644
index 0000000000..ad22feb655
--- /dev/null
+++ b/benchmark/bm_vm3_gc_old_immediate.rb
@@ -0,0 +1,4 @@
+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
new file mode 100644
index 0000000000..b74d44baf1
--- /dev/null
+++ b/benchmark/bm_vm3_gc_old_lazy.rb
@@ -0,0 +1,4 @@
+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
new file mode 100644
index 0000000000..1d433353e1
--- /dev/null
+++ b/benchmark/bm_vm_symbol_block_pass.rb
@@ -0,0 +1,13 @@
+class C
+  1000.times {|i|
+    eval("def i#{i};end")
+  }
+end
+
+c = C.new
+m = C.instance_methods(false)
+5_000.times do
+  m.each do |n|
+    c.tap(&n)
+  end
+end
diff --git a/benchmark/bm_vm_thread_alive_check1.rb b/benchmark/bm_vm_thread_alive_check1.rb
new file mode 100644
index 0000000000..c993accdda
--- /dev/null
+++ b/benchmark/bm_vm_thread_alive_check1.rb
@@ -0,0 +1,6 @@
+5_000.times{
+  t = Thread.new{}
+  while t.alive?
+    Thread.pass
+  end
+}
diff --git a/benchmark/bm_vm_thread_close.rb b/benchmark/bm_vm_thread_close.rb
new file mode 100644
index 0000000000..3e9a265ce8
--- /dev/null
+++ b/benchmark/bm_vm_thread_close.rb
@@ -0,0 +1,6 @@
+1000.times { Thread.new { sleep } }
+i = 0
+while i<100_000 # benchmark loop 3
+  i += 1
+  IO.pipe.each(&:close)
+end
diff --git a/benchmark/bm_vm_thread_create_join.rb b/benchmark/bm_vm_thread_create_join.rb
new file mode 100644
index 0000000000..393cd45df9
--- /dev/null
+++ b/benchmark/bm_vm_thread_create_join.rb
@@ -0,0 +1,6 @@
+i = 0
+while i<100_000 # benchmark loop 3
+  i += 1
+  Thread.new{
+  }.join
+end
diff --git a/benchmark/bm_vm_thread_mutex1.rb b/benchmark/bm_vm_thread_mutex1.rb
new file mode 100644
index 0000000000..66e42c85e1
--- /dev/null
+++ b/benchmark/bm_vm_thread_mutex1.rb
@@ -0,0 +1,21 @@
+# one thread, one mutex (no contention)
+
+require 'thread'
+m = Thread::Mutex.new
+r = 0
+max = 2000
+lmax = max * max
+(1..1).map{
+  Thread.new{
+    i = 0
+    while i<lmax
+      i += 1
+      m.synchronize{
+        r += 1
+      }
+    end
+  }
+}.each{|e|
+  e.join
+}
+raise r.to_s if r != max * max
diff --git a/benchmark/bm_vm_thread_mutex2.rb b/benchmark/bm_vm_thread_mutex2.rb
new file mode 100644
index 0000000000..6e6c804c31
--- /dev/null
+++ b/benchmark/bm_vm_thread_mutex2.rb
@@ -0,0 +1,21 @@
+# two threads, one mutex
+
+require 'thread'
+m = Thread::Mutex.new
+r = 0
+max = 2000
+lmax = (max * max)/2
+(1..2).map{
+  Thread.new{
+    i = 0
+    while i<lmax
+      i += 1
+      m.synchronize{
+        r += 1
+      }
+    end
+  }
+}.each{|e|
+  e.join
+}
+raise r.to_s if r != max * max
diff --git a/benchmark/bm_vm_thread_mutex3.rb b/benchmark/bm_vm_thread_mutex3.rb
new file mode 100644
index 0000000000..c750dc542a
--- /dev/null
+++ b/benchmark/bm_vm_thread_mutex3.rb
@@ -0,0 +1,20 @@
+# 1000 threads, one mutex
+
+require 'thread'
+m = Thread::Mutex.new
+r = 0
+max = 2000
+(1..max).map{
+  Thread.new{
+    i = 0
+    while i<max
+      i += 1
+      m.synchronize{
+        r += 1
+      }
+    end
+  }
+}.each{|e|
+  e.join
+}
+raise r.to_s if r != max * max
diff --git a/benchmark/bm_vm_thread_pass.rb b/benchmark/bm_vm_thread_pass.rb
new file mode 100644
index 0000000000..b5b3c0bc85
--- /dev/null
+++ b/benchmark/bm_vm_thread_pass.rb
@@ -0,0 +1,15 @@
+# Plenty Thtread.pass
+# A performance may depend on GVL implementation.
+
+tmax = (ARGV.shift || 2).to_i
+lmax = 200_000 / tmax
+
+(1..tmax).map{
+  Thread.new{
+    lmax.times{
+      Thread.pass
+    }
+  }
+}.each{|t| t.join}
+
+
diff --git a/benchmark/bm_vm_thread_pass_flood.rb b/benchmark/bm_vm_thread_pass_flood.rb
new file mode 100644
index 0000000000..27157d1a6f
--- /dev/null
+++ b/benchmark/bm_vm_thread_pass_flood.rb
@@ -0,0 +1,8 @@
+1000.times{
+  Thread.new{loop{Thread.pass}}
+}
+
+i = 0
+while i<10000
+  i += 1
+end
diff --git a/benchmark/bm_vm_thread_pipe.rb b/benchmark/bm_vm_thread_pipe.rb
new file mode 100644
index 0000000000..112a621905
--- /dev/null
+++ b/benchmark/bm_vm_thread_pipe.rb
@@ -0,0 +1,17 @@
+# Measure small and plenty pipe read/write.
+# A performance may depend on GVL implementation.
+
+lmax = 100_000
+r, w = IO.pipe
+[Thread.new{
+  lmax.times{
+    w.write('a')
+  }
+  p "w:exit"
+}, Thread.new{
+  lmax.times{
+    r.read(1)
+  }
+  p "r:exit"
+}].each{|t| t.join}
+
diff --git a/benchmark/bm_vm_thread_queue.rb b/benchmark/bm_vm_thread_queue.rb
new file mode 100644
index 0000000000..274ceda366
--- /dev/null
+++ b/benchmark/bm_vm_thread_queue.rb
@@ -0,0 +1,18 @@
+require 'thread'
+
+n = 1_000_000
+q = Thread::Queue.new
+consumer = Thread.new{
+  while q.pop
+    # consuming
+  end
+}
+
+producer = Thread.new{
+  n.times{
+    q.push true
+  }
+  q.push nil
+}
+
+consumer.join
diff --git a/benchmark/driver.rb b/benchmark/driver.rb
new file mode 100644
index 0000000000..eb976b4a90
--- /dev/null
+++ b/benchmark/driver.rb
@@ -0,0 +1,427 @@
+#
+# Ruby Benchmark driver
+#
+
+first = true
+
+begin
+  require 'optparse'
+rescue LoadError
+  if first
+    first = false
+    $:.unshift File.join(File.dirname(__FILE__), '../lib')
+    retry
+  else
+    raise
+  end
+end
+
+require 'benchmark'
+require 'pp'
+require 'tempfile'
+
+class BenchmarkDriver
+  def self.benchmark(opt)
+    driver = self.new(opt[:execs], opt[:dir], opt)
+    begin
+      driver.run
+    ensure
+      driver.show_results
+    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
+    obj = allocate
+    obj.instance_variable_set("@execs", h[:executables] || h["executables"])
+    obj.instance_variable_set("@results", h[:results] || h["results"])
+    obj.instance_variable_set("@opt", opt)
+    obj
+  end
+
+  def output *args
+    puts(*args)
+    @output and @output.puts(*args)
+  end
+
+  def message *args
+    output(*args) if @verbose
+  end
+
+  def message_print *args
+    if @verbose
+      print(*args)
+      STDOUT.flush
+      @output and @output.print(*args)
+    end
+  end
+
+  def progress_message *args
+    unless STDOUT.tty?
+      STDERR.print(*args)
+      STDERR.flush
+    end
+  end
+
+  def initialize execs, dir, opt = {}
+    @execs = execs.map{|e|
+      e.strip!
+      next if e.empty?
+
+      if /(.+)::(.+)/ =~ e
+        # ex) ruby-a::/path/to/ruby-a
+        label = $1.strip
+        path = $2
+        version = `#{path} -v`.chomp
+      else
+        path = e
+        version = label = `#{path} -v`.chomp
+      end
+      [path, label, version]
+    }.compact
+
+    @dir = dir
+    @repeat = opt[:repeat] || 1
+    @repeat = 1 if @repeat < 1
+    @pattern = opt[:pattern] || nil
+    @exclude = opt[:exclude] || nil
+    @verbose = opt[:quiet] ? false : (opt[:verbose] || false)
+    @output = opt[:output] ? open(opt[:output], 'w') : nil
+    @loop_wl1 = @loop_wl2 = nil
+    @ruby_arg = opt[:ruby_arg] || nil
+    @measure_target = opt[:measure_target]
+    @opt = opt
+
+    # [[name, [[r-1-1, r-1-2, ...], [r-2-1, r-2-2, ...]]], ...]
+    @results = []
+
+    if @verbose
+      @start_time = Time.now
+      message @start_time
+      @execs.each_with_index{|(path, label, version), i|
+        message "target #{i}: " + (label == version ? "#{label}" : "#{label} (#{version})") + " at \"#{path}\""
+      }
+      message "measure target: #{@measure_target}"
+    end
+  end
+
+  def adjusted_results name, results
+    s = nil
+    results.each_with_index{|e, i|
+      r = e.min
+      case name
+      when /^vm1_/
+        if @loop_wl1
+          r -= @loop_wl1[i]
+          r = 0 if r < 0
+          s = '*'
+        end
+      when /^vm2_/
+        if @loop_wl2
+          r -= @loop_wl2[i]
+          r = 0 if r < 0
+          s = '*'
+        end
+      end
+      yield r
+    }
+    s
+  end
+
+  def show_results
+    case @opt[:format]
+    when :tsv
+      strformat = "\t%1$s"
+      numformat = "\t%1$*2$.3f"
+      minwidth = 0
+      name_width = 0
+    when :markdown
+      markdown = true
+      strformat = "|%1$-*2$s"
+      numformat = "|%1$*2$.3f"
+    when :plain
+      strformat = " %1$-*2$s"
+      numformat = " %1$*2$.3f"
+    end
+
+    name_width ||= @results.map {|v,*| v.size}.max
+    minwidth ||= 7
+    width = @execs.map{|(_, v)| [v.size, minwidth].max}
+
+    output
+
+    if @verbose
+      message '-----------------------------------------------------------'
+      message 'raw data:'
+      message
+      message PP.pp(@results, "", 79)
+      message
+      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:'
+
+    if @verbose and @repeat > 1
+      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
+    @results.each{|v, result|
+      rets = []
+      s = adjusted_results(v, result){|r|
+        rets << sprintf(numformat, r, width[rets.size])
+      }
+      v += s if s
+      output [v.ljust(name_width), rets].join("")
+    }
+
+    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
+      @results.each{|v, result|
+        rets = []
+        first_value = nil
+        s = adjusted_results(v, result){|r|
+          if first_value
+            if r == 0
+              rets << "Error"
+            else
+              rets << sprintf(numformat, first_value/Float(r), width[rets.size+1])
+            end
+          else
+            first_value = r
+          end
+        }
+        v += s if s
+        output [v.ljust(name_width), rets].join("")
+      }
+    end
+
+    if @opt[:output]
+      output
+      output "Log file: #{@opt[:output]}"
+    end
+  end
+
+  def files
+    flag = {}
+    @files = Dir.glob(File.join(@dir, 'bm*.rb')).map{|file|
+      next if @pattern && /#{@pattern}/ !~ File.basename(file)
+      next if @exclude && /#{@exclude}/ =~ File.basename(file)
+      case file
+      when /bm_(vm[12])_/, /bm_loop_(whileloop2?).rb/
+        flag[$1] = true
+      end
+      file
+    }.compact
+
+    if flag['vm1'] && !flag['whileloop']
+      @files << File.join(@dir, 'bm_loop_whileloop.rb')
+    elsif flag['vm2'] && !flag['whileloop2']
+      @files << File.join(@dir, 'bm_loop_whileloop2.rb')
+    end
+
+    @files.sort!
+    progress_message "total: #{@files.size * @repeat} trial(s) (#{@repeat} trial(s) for #{@files.size} benchmark(s))\n"
+    @files
+  end
+
+  def run
+    files.each_with_index{|file, i|
+      @i = i
+      r = measure_file(file)
+
+      if /bm_loop_whileloop.rb/ =~ file
+        @loop_wl1 = r[1].map{|e| e.min}
+      elsif /bm_loop_whileloop2.rb/ =~ file
+        @loop_wl2 = r[1].map{|e| e.min}
+      end
+    }
+  end
+
+  def measure_file file
+    name = File.basename(file, '.rb').sub(/^bm_/, '')
+    prepare_file = File.join(File.dirname(file), "prepare_#{name}.rb")
+    load prepare_file if FileTest.exist?(prepare_file)
+
+    if @verbose
+      output
+      output '-----------------------------------------------------------'
+      output name
+      output
+      output File.read(file)
+      output
+    end
+
+    result = [name]
+    result << @execs.map{|(e, v)|
+      (0...@repeat).map{
+        message_print "#{v}\t"
+        progress_message '.'
+
+        m = measure(e, file)
+        message "#{m}"
+        m
+      }
+    }
+    @results << result
+    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
+
+    if $? != 0
+      raise $?.inspect if $? && $?.signaled?
+      output "\`#{cmd}\' exited with abnormal status (#{$?})"
+      0
+    else
+      result
+    end
+  end
+end
+
+if __FILE__ == $0
+  opt = {
+    :execs => [],
+    :dir => File.dirname(__FILE__),
+    :repeat => 1,
+    :measure_target => :real,
+    :output => nil,
+    :raw_output => nil,
+    :format => :tsv,
+  }
+  formats = {
+    :tsv => ".tsv",
+    :markdown => ".md",
+    :plain => ".txt",
+  }
+
+  parser = OptionParser.new{|o|
+    o.on('-e', '--executables [EXECS]',
+      "Specify benchmark one or more targets (e1::path1; e2::path2; e3::path3;...)"){|e|
+       e.split(/;/).each{|path|
+         opt[:execs] << path
+       }
+    }
+    o.on('-d', '--directory [DIRECTORY]', "Benchmark suites directory"){|d|
+      opt[:dir] = d
+    }
+    o.on('-p', '--pattern [PATTERN]', "Benchmark name pattern"){|p|
+      opt[:pattern] = p
+    }
+    o.on('-x', '--exclude [PATTERN]', "Benchmark exclude pattern"){|e|
+      opt[:exclude] = e
+    }
+    o.on('-r', '--repeat-count [NUM]', "Repeat count"){|n|
+      opt[:repeat] = n.to_i
+    }
+    o.on('-o', '--output-file [FILE]', "Output file"){|f|
+      opt[:output] = f
+    }
+    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('-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)
+  opt[:output] ||= "bmlog-#{Time.now.strftime('%Y%m%d-%H%M%S')}.#{$$}#{formats[opt[:format]]}"
+
+  if input = opt[:rawdata_input]
+    b = open(input) {|f|
+      BenchmarkDriver.load(f, File.extname(input)[1..-1], opt)
+    }
+    b.show_results
+  else
+    BenchmarkDriver.benchmark(opt)
+  end
+end
+
diff --git a/benchmark/gc/aobench.rb b/benchmark/gc/aobench.rb
new file mode 100644
index 0000000000..2eed7abc83
--- /dev/null
+++ b/benchmark/gc/aobench.rb
@@ -0,0 +1 @@
+require_relative '../bm_app_aobench.rb'
diff --git a/benchmark/gc/binary_trees.rb b/benchmark/gc/binary_trees.rb
new file mode 100644
index 0000000000..af8ea722aa
--- /dev/null
+++ b/benchmark/gc/binary_trees.rb
@@ -0,0 +1 @@
+require_relative '../bm_so_binary_trees.rb'
diff --git a/benchmark/gc/gcbench.rb b/benchmark/gc/gcbench.rb
new file mode 100644
index 0000000000..09a404466a
--- /dev/null
+++ b/benchmark/gc/gcbench.rb
@@ -0,0 +1,56 @@
+require 'benchmark'
+require 'pp'
+require 'optparse'
+
+$list = true
+$gcprof = true
+
+opt = OptionParser.new
+opt.on('-q'){$list = false}
+opt.on('-d'){$gcprof = false}
+opt.parse!(ARGV)
+
+script = File.join(File.dirname(__FILE__), ARGV.shift)
+script += '.rb' unless FileTest.exist?(script)
+raise "#{script} not found" unless FileTest.exist?(script)
+
+puts "Script: #{script}"
+
+if $gcprof
+  GC::Profiler.enable
+end
+
+tms = Benchmark.measure{|x|
+  load script
+}
+
+gc_time = 0
+
+if $gcprof
+  gc_time = GC::Profiler.total_time
+  GC::Profiler.report if $list and RUBY_VERSION >= '2.0.0' # before 1.9.3, report() may run infinite loop
+  GC::Profiler.disable
+end
+
+pp GC.stat
+
+puts "#{RUBY_DESCRIPTION} #{GC::OPTS.inspect}" if defined?(GC::OPTS)
+
+desc = "#{RUBY_VERSION}#{RUBY_PATCHLEVEL >= 0 ? "p#{RUBY_PATCHLEVEL}" : "dev"}"
+name = File.basename(script, '.rb')
+
+puts
+puts script
+puts Benchmark::CAPTION
+puts tms
+puts "GC total time (sec): #{gc_time}"
+
+# show High-Water Mark on Linux
+if File.exist?('/proc/self/status') && /VmHWM:\s*(\d+.+)/ =~ File.read('/proc/self/status')
+  puts
+  puts "VmHWM: #{$1.chomp}"
+end
+
+puts
+puts "Summary of #{name} on #{desc}\t#{tms.real}\t#{gc_time}\t#{GC.count}"
+puts "         (real time in sec, GC time in sec, GC count)"
diff --git a/benchmark/gc/hash1.rb b/benchmark/gc/hash1.rb
new file mode 100644
index 0000000000..cb030d458d
--- /dev/null
+++ b/benchmark/gc/hash1.rb
@@ -0,0 +1,11 @@
+value = 0.01
+h = {}
+n = 50_000
+
+1.upto(n){|i|
+  h["%020d" % i] = "v-#{i}"
+}
+
+(n * 1_000).times{
+  ''
+}
diff --git a/benchmark/gc/hash2.rb b/benchmark/gc/hash2.rb
new file mode 100644
index 0000000000..e8c943fb21
--- /dev/null
+++ b/benchmark/gc/hash2.rb
@@ -0,0 +1,7 @@
+value = 0.01
+h = {}
+n = 4*(10**6)
+
+1.upto(n){|i|
+  h["%020d" % i] = value * i
+}
diff --git a/benchmark/gc/null.rb b/benchmark/gc/null.rb
new file mode 100644
index 0000000000..c05a79f561
--- /dev/null
+++ b/benchmark/gc/null.rb
@@ -0,0 +1 @@
+# null
diff --git a/benchmark/gc/pentomino.rb b/benchmark/gc/pentomino.rb
new file mode 100644
index 0000000000..94ba74be89
--- /dev/null
+++ b/benchmark/gc/pentomino.rb
@@ -0,0 +1 @@
+require_relative '../bm_app_pentomino.rb'
diff --git a/benchmark/gc/rdoc.rb b/benchmark/gc/rdoc.rb
new file mode 100644
index 0000000000..14c89f5611
--- /dev/null
+++ b/benchmark/gc/rdoc.rb
@@ -0,0 +1,13 @@
+require 'rdoc/rdoc'
+require 'tmpdir'
+
+srcdir = File.expand_path('../..', __dir__)
+
+Dir.mktmpdir('rdocbench-'){|d|
+  dir = File.join(d, 'rdocbench')
+  args = %W(--root #{srcdir} --page-dir #{srcdir}/doc --encoding=UTF-8 --no-force-update --all --ri --debug --quiet #{srcdir})
+  args << '--op' << dir
+
+  r = RDoc::RDoc.new
+  r.document args
+}
diff --git a/benchmark/gc/redblack.rb b/benchmark/gc/redblack.rb
new file mode 100644
index 0000000000..c66290140a
--- /dev/null
+++ b/benchmark/gc/redblack.rb
@@ -0,0 +1,366 @@
+# This benchmark is imported from https://github.com/jruby/rubybench/blob/master/time/bench_red_black.rb
+# License is License is Apache-2
+
+require 'benchmark'
+
+# Algorithm based on "Introduction to Algorithms" by Cormen and others
+class RedBlackTree
+  class Node
+    attr_accessor :color
+    attr_accessor :key
+    attr_accessor :left
+    attr_accessor :right
+    attr_accessor :parent
+
+    RED = :red
+    BLACK = :black
+    COLORS = [RED, BLACK].freeze
+
+    def initialize(key, color = RED)
+      raise ArgumentError, "Bad value for color parameter" unless COLORS.include?(color)
+      @color = color
+      @key = key
+      @left = @right = @parent = NilNode.instance
+    end
+
+    def black?
+      return color == BLACK
+    end
+
+    def red?
+      return color == RED
+    end
+  end
+
+  class NilNode < Node
+    class << self
+      private :new
+
+      # it's not thread safe
+      def instance
+        @instance ||= begin
+          def instance
+            return @instance
+          end
+
+          new
+        end
+      end
+    end
+
+    def initialize
+      self.color = BLACK
+      self.key = 0
+      self.left = nil
+      self.right = nil
+      self.parent = nil
+    end
+
+    def nil?
+      return true
+    end
+  end
+
+  include Enumerable
+
+  attr_accessor :root
+  attr_accessor :size
+
+  def initialize
+    self.root = NilNode.instance
+    self.size = 0
+  end
+
+  def add(key)
+    insert(Node.new(key))
+  end
+
+  def insert(x)
+    insert_helper(x)
+
+    x.color = Node::RED
+    while x != root && x.parent.color == Node::RED
+      if x.parent == x.parent.parent.left
+        y = x.parent.parent.right
+        if !y.nil? && y.color == Node::RED
+          x.parent.color = Node::BLACK
+          y.color = Node::BLACK
+          x.parent.parent.color = Node::RED
+          x = x.parent.parent
+        else
+          if x == x.parent.right
+            x = x.parent
+            left_rotate(x)
+          end
+          x.parent.color = Node::BLACK
+          x.parent.parent.color = Node::RED
+          right_rotate(x.parent.parent)
+        end
+      else
+        y = x.parent.parent.left
+        if !y.nil? && y.color == Node::RED
+          x.parent.color = Node::BLACK
+          y.color = Node::BLACK
+          x.parent.parent.color = Node::RED
+          x = x.parent.parent
+        else
+          if x == x.parent.left
+            x = x.parent
+            right_rotate(x)
+          end
+          x.parent.color = Node::BLACK
+          x.parent.parent.color = Node::RED
+          left_rotate(x.parent.parent)
+        end
+      end
+    end
+    root.color = Node::BLACK
+  end
+
+  alias << insert
+
+  def delete(z)
+    y = (z.left.nil? || z.right.nil?) ? z : successor(z)
+    x = y.left.nil? ? y.right : y.left
+    x.parent = y.parent
+
+    if y.parent.nil?
+      self.root = x
+    else
+      if y == y.parent.left
+        y.parent.left = x
+      else
+        y.parent.right = x
+      end
+    end
+
+    z.key = y.key if y != z
+
+    if y.color == Node::BLACK
+      delete_fixup(x)
+    end
+
+    self.size -= 1
+    return y
+  end
+
+  def minimum(x = root)
+    while !x.left.nil?
+      x = x.left
+    end
+    return x
+  end
+
+  def maximum(x = root)
+    while !x.right.nil?
+      x = x.right
+    end
+    return x
+  end
+
+  def successor(x)
+    if !x.right.nil?
+      return minimum(x.right)
+    end
+    y = x.parent
+    while !y.nil? && x == y.right
+      x = y
+      y = y.parent
+    end
+    return y
+  end
+
+  def predecessor(x)
+    if !x.left.nil?
+      return maximum(x.left)
+    end
+    y = x.parent
+    while !y.nil? && x == y.left
+      x = y
+      y = y.parent
+    end
+    return y
+  end
+
+  def inorder_walk(x = root)
+    x = self.minimum
+    while !x.nil?
+      yield x.key
+      x = successor(x)
+    end
+  end
+
+  alias each inorder_walk
+
+  def reverse_inorder_walk(x = root)
+    x = self.maximum
+    while !x.nil?
+      yield x.key
+      x = predecessor(x)
+    end
+  end
+
+  alias reverse_each reverse_inorder_walk
+
+  def search(key, x = root)
+    while !x.nil? && x.key != key
+      key < x.key ? x = x.left : x = x.right
+    end
+    return x
+  end
+
+  def empty?
+    return self.root.nil?
+  end
+
+  def black_height(x = root)
+    height = 0
+    while !x.nil?
+      x = x.left
+      height +=1 if x.nil? || x.black?
+    end
+    return height
+  end
+
+private
+
+  def left_rotate(x)
+    raise "x.right is nil!" if x.right.nil?
+    y = x.right
+    x.right = y.left
+    y.left.parent = x if !y.left.nil?
+    y.parent = x.parent
+    if x.parent.nil?
+      self.root = y
+    else
+      if x == x.parent.left
+        x.parent.left = y
+      else
+        x.parent.right = y
+      end
+    end
+    y.left = x
+    x.parent = y
+  end
+
+  def right_rotate(x)
+    raise "x.left is nil!" if x.left.nil?
+    y = x.left
+    x.left = y.right
+    y.right.parent = x if !y.right.nil?
+    y.parent = x.parent
+    if x.parent.nil?
+      self.root = y
+    else
+      if x == x.parent.left
+        x.parent.left = y
+      else
+        x.parent.right = y
+      end
+    end
+    y.right = x
+    x.parent = y
+  end
+
+  def insert_helper(z)
+    y = NilNode.instance
+    x = root
+    while !x.nil?
+      y = x
+      z.key < x.key ? x = x.left : x = x.right
+    end
+    z.parent = y
+    if y.nil?
+      self.root = z
+    else
+      z.key < y.key ? y.left = z : y.right = z
+    end
+    self.size += 1
+  end
+
+  def delete_fixup(x)
+    while x != root && x.color == Node::BLACK
+      if x == x.parent.left
+        w = x.parent.right
+        if w.color == Node::RED
+          w.color = Node::BLACK
+          x.parent.color = Node::RED
+          left_rotate(x.parent)
+          w = x.parent.right
+        end
+        if w.left.color == Node::BLACK && w.right.color == Node::BLACK
+          w.color = Node::RED
+          x = x.parent
+        else
+          if w.right.color == Node::BLACK
+            w.left.color = Node::BLACK
+            w.color = Node::RED
+            right_rotate(w)
+            w = x.parent.right
+          end
+          w.color = x.parent.color
+          x.parent.color = Node::BLACK
+          w.right.color = Node::BLACK
+          left_rotate(x.parent)
+          x = root
+        end
+      else
+        w = x.parent.left
+        if w.color == Node::RED
+          w.color = Node::BLACK
+          x.parent.color = Node::RED
+          right_rotate(x.parent)
+          w = x.parent.left
+        end
+        if w.right.color == Node::BLACK && w.left.color == Node::BLACK
+          w.color = Node::RED
+          x = x.parent
+        else
+          if w.left.color == Node::BLACK
+            w.right.color = Node::BLACK
+            w.color = Node::RED
+            left_rotate(w)
+            w = x.parent.left
+          end
+          w.color = x.parent.color
+          x.parent.color = Node::BLACK
+          w.left.color = Node::BLACK
+          right_rotate(x.parent)
+          x = root
+        end
+      end
+    end
+    x.color = Node::BLACK
+  end
+end
+
+def rbt_bm
+  n = 100_000
+  a1 = []; n.times { a1 << rand(999_999) }
+  a2 = []; n.times { a2 << rand(999_999) }
+
+  start = Time.now
+
+  tree = RedBlackTree.new
+
+  n.times {|i| tree.add(i) }
+  n.times { tree.delete(tree.root) }
+
+  tree = RedBlackTree.new
+  a1.each {|e| tree.add(e) }
+  a2.each {|e| tree.search(e) }
+  tree.inorder_walk {|key| key + 1 }
+  tree.reverse_inorder_walk {|key| key + 1 }
+  n.times { tree.minimum }
+  n.times { tree.maximum }
+
+  return Time.now - start
+end
+
+N = (ARGV[0] || 10).to_i
+
+N.times do
+  # puts rbt_bm.to_f
+  rbt_bm.to_f
+  # puts "GC.count = #{GC.count}" if GC.respond_to?(:count)
+end
diff --git a/benchmark/gc/ring.rb b/benchmark/gc/ring.rb
new file mode 100644
index 0000000000..be2c7b7250
--- /dev/null
+++ b/benchmark/gc/ring.rb
@@ -0,0 +1,29 @@
+# create many old objects
+
+max = 30_000_000
+
+class Ring
+  attr_reader :next_ring
+  def initialize n = nil
+    @next_ring = n
+  end
+
+
+  def size
+    s = 1
+    ring = self
+    while ring.next_ring
+      s += 1
+      ring = ring.next_ring
+    end
+    s
+  end
+end
+
+ring = Ring.new
+
+max.times{
+  ring = Ring.new(ring)
+}
+
+# p ring.size
diff --git a/benchmark/make_fasta_output.rb b/benchmark/make_fasta_output.rb
new file mode 100644
index 0000000000..b6d787ae27
--- /dev/null
+++ b/benchmark/make_fasta_output.rb
@@ -0,0 +1,19 @@
+# prepare 'fasta.output'
+
+def prepare_fasta_output n
+  filebase = File.join(File.dirname($0), 'fasta.output')
+  script = File.join(File.dirname($0), 'bm_so_fasta.rb')
+  file = "#{filebase}.#{n}"
+
+  unless FileTest.exist?(file)
+    STDERR.puts "preparing #{file}"
+
+    open(file, 'w'){|f|
+      ARGV[0] = n
+      $stdout = f
+      load script
+      $stdout = STDOUT
+    }
+  end
+end
+
diff --git a/benchmark/memory_wrapper.rb b/benchmark/memory_wrapper.rb
new file mode 100644
index 0000000000..3f4451a037
--- /dev/null
+++ b/benchmark/memory_wrapper.rb
@@ -0,0 +1,16 @@
+
+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/other-lang/ack.pl b/benchmark/other-lang/ack.pl
new file mode 100644
index 0000000000..201e22ddfa
--- /dev/null
+++ b/benchmark/other-lang/ack.pl
@@ -0,0 +1,11 @@
+use integer;
+
+sub Ack {
+    return $_[0] ? ($_[1] ? Ack($_[0]-1, Ack($_[0], $_[1]-1))
+		    : Ack($_[0]-1, 1))
+	: $_[1]+1;
+}
+
+my $NUM = 9;
+$NUM = 1 if ($NUM < 1);
+my $ack = Ack(3, $NUM);
diff --git a/benchmark/other-lang/ack.py b/benchmark/other-lang/ack.py
new file mode 100644
index 0000000000..9968e7cfcf
--- /dev/null
+++ b/benchmark/other-lang/ack.py
@@ -0,0 +1,16 @@
+import sys
+sys.setrecursionlimit(5000000)
+
+def Ack(M, N):
+    if (not M):
+        return( N + 1 )
+    if (not N):
+        return( Ack(M-1, 1) )
+    return( Ack(M-1, Ack(M, N-1)) )
+
+def main():
+    NUM = 9
+    sys.setrecursionlimit(10000)
+    Ack(3, NUM)
+
+main()
diff --git a/benchmark/other-lang/ack.rb b/benchmark/other-lang/ack.rb
new file mode 100644
index 0000000000..7451bed6c4
--- /dev/null
+++ b/benchmark/other-lang/ack.rb
@@ -0,0 +1,12 @@
+def ack(m, n)
+    if m == 0 then
+        n + 1
+    elsif n == 0 then
+        ack(m - 1, 1)
+    else
+        ack(m - 1, ack(m, n - 1))
+    end
+end
+
+NUM = 9
+ack(3, NUM)
diff --git a/benchmark/other-lang/ack.scm b/benchmark/other-lang/ack.scm
new file mode 100644
index 0000000000..a80b73ba55
--- /dev/null
+++ b/benchmark/other-lang/ack.scm
@@ -0,0 +1,7 @@
+(define (ack m n)
+  (cond ((zero? m) (+ n 1))
+	((zero? n) (ack (- m 1) 1))
+	(else      (ack (- m 1) (ack m (- n 1))))))
+
+(ack 3 9)
+
diff --git a/benchmark/other-lang/eval.rb b/benchmark/other-lang/eval.rb
new file mode 100644
index 0000000000..48a2cea019
--- /dev/null
+++ b/benchmark/other-lang/eval.rb
@@ -0,0 +1,66 @@
+
+Bench = %w(
+  loop
+  ack
+  fib
+  tak
+  fact
+)
+
+Lang = <<EOP.map{|l| l.strip}
+  ruby-cyg
+  ../../../test6/miniruby
+  perl
+  python
+  gosh
+EOP
+
+Bench.replace ['loop2']
+Lang.replace ['ruby-cyg']
+
+Ext = %w(
+  .rb
+  .rb
+  .pl
+  .py
+  .scm
+)
+
+p Bench
+p Lang
+
+require 'benchmark'
+
+def bench cmd
+  m = Benchmark.measure{
+    #p cmd
+    system(cmd)
+  }
+  [m.utime, m.real]
+end
+
+Result = []
+Bench.each{|b|
+  r = []
+  Lang.each_with_index{|l, idx|
+    cmd = "#{l} #{b}#{Ext[idx]}"
+    r << bench(cmd)
+  }
+  Result << r
+}
+
+require 'pp'
+# utime
+puts Lang.join("\t")
+Bench.each_with_index{|b, bi|
+  print b, "\t"
+  puts Result[bi].map{|e| e[0]}.join("\t")
+}
+
+# rtime
+puts Lang.join("\t")
+Bench.each_with_index{|b, bi|
+  print b, "\t"
+  puts Result[bi].map{|e| e[1]}.join("\t")
+}
+
diff --git a/benchmark/other-lang/fact.pl b/benchmark/other-lang/fact.pl
new file mode 100644
index 0000000000..a9b0b69cdf
--- /dev/null
+++ b/benchmark/other-lang/fact.pl
@@ -0,0 +1,13 @@
+sub fact{
+  my $n = @_[0];
+  if($n < 2){
+    return 1;
+  }
+  else{
+    return $n * fact($n-1);
+  }
+}
+
+for($i=0; $i<10000; $i++){
+  &fact(100);
+}
diff --git a/benchmark/other-lang/fact.py b/benchmark/other-lang/fact.py
new file mode 100644
index 0000000000..01593965d9
--- /dev/null
+++ b/benchmark/other-lang/fact.py
@@ -0,0 +1,18 @@
+#import sys
+#sys.setrecursionlimit(1000)
+
+def factL(n):
+	r = 1
+	for x in range(2, n):
+		r *= x
+	return r
+
+def factR(n):
+	if n < 2:
+		return 1
+	else:
+		return n * factR(n-1)
+
+for i in range(10000):
+	factR(100)
+
diff --git a/benchmark/other-lang/fact.rb b/benchmark/other-lang/fact.rb
new file mode 100644
index 0000000000..6cedc752cd
--- /dev/null
+++ b/benchmark/other-lang/fact.rb
@@ -0,0 +1,13 @@
+def fact(n)
+  if n < 2
+    1
+  else
+    n * fact(n-1)
+  end
+end
+
+i = 0
+while i<10000
+  i += 1
+  fact(100)
+end
diff --git a/benchmark/other-lang/fact.scm b/benchmark/other-lang/fact.scm
new file mode 100644
index 0000000000..c98a7fedd3
--- /dev/null
+++ b/benchmark/other-lang/fact.scm
@@ -0,0 +1,8 @@
+(define (fact n)
+        (if (< n 2)
+            1
+          (* n (fact (- n 1)))))
+
+(dotimes (i 10000)
+  (fact 100))
+
diff --git a/benchmark/other-lang/fib.pl b/benchmark/other-lang/fib.pl
new file mode 100644
index 0000000000..a46f666d1e
--- /dev/null
+++ b/benchmark/other-lang/fib.pl
@@ -0,0 +1,11 @@
+sub fib{
+  my $n = $_[0];
+  if($n < 3){
+    return 1;
+  }
+  else{
+    return fib($n-1) + fib($n-2);
+  }
+};
+
+&fib(34);
diff --git a/benchmark/other-lang/fib.py b/benchmark/other-lang/fib.py
new file mode 100644
index 0000000000..45f2bceb8d
--- /dev/null
+++ b/benchmark/other-lang/fib.py
@@ -0,0 +1,7 @@
+def fib(n):
+  if n < 3:
+    return 1
+  else:
+    return fib(n-1) + fib(n-2)
+
+fib(34)
diff --git a/benchmark/other-lang/fib.rb b/benchmark/other-lang/fib.rb
new file mode 100644
index 0000000000..ec587eabe0
--- /dev/null
+++ b/benchmark/other-lang/fib.rb
@@ -0,0 +1,9 @@
+def fib n
+  if n < 3
+    1
+  else
+    fib(n-1) + fib(n-2)
+  end
+end
+
+fib(34)
diff --git a/benchmark/other-lang/fib.scm b/benchmark/other-lang/fib.scm
new file mode 100644
index 0000000000..2fc4e225bd
--- /dev/null
+++ b/benchmark/other-lang/fib.scm
@@ -0,0 +1,7 @@
+(define (fib n)
+        (if (< n 3)
+            1
+          (+ (fib (- n 1)) (fib (- n 2)))))
+
+(fib 34)
+
diff --git a/benchmark/other-lang/loop.pl b/benchmark/other-lang/loop.pl
new file mode 100644
index 0000000000..2777490aaa
--- /dev/null
+++ b/benchmark/other-lang/loop.pl
@@ -0,0 +1,3 @@
+for($i=0; $i<30000000; $i++){
+}
+
diff --git a/benchmark/other-lang/loop.py b/benchmark/other-lang/loop.py
new file mode 100644
index 0000000000..003749bf3a
--- /dev/null
+++ b/benchmark/other-lang/loop.py
@@ -0,0 +1,2 @@
+for i in xrange(30000000):
+	pass
diff --git a/benchmark/other-lang/loop.rb b/benchmark/other-lang/loop.rb
new file mode 100644
index 0000000000..b367b9dbf3
--- /dev/null
+++ b/benchmark/other-lang/loop.rb
@@ -0,0 +1,4 @@
+i = 0
+while i<30000000
+  i += 1
+end
diff --git a/benchmark/other-lang/loop.scm b/benchmark/other-lang/loop.scm
new file mode 100644
index 0000000000..3364f7e679
--- /dev/null
+++ b/benchmark/other-lang/loop.scm
@@ -0,0 +1 @@
+(dotimes (x 30000000))
diff --git a/benchmark/other-lang/loop2.rb b/benchmark/other-lang/loop2.rb
new file mode 100644
index 0000000000..df8fffc1ff
--- /dev/null
+++ b/benchmark/other-lang/loop2.rb
@@ -0,0 +1 @@
+30000000.times{}
diff --git a/benchmark/other-lang/tak.pl b/benchmark/other-lang/tak.pl
new file mode 100644
index 0000000000..7e748a67c6
--- /dev/null
+++ b/benchmark/other-lang/tak.pl
@@ -0,0 +1,11 @@
+sub tak {
+    local($x, $y, $z) = @_;
+    if (!($y < $x)) {
+	return $z;
+    } else {
+	return &tak(&tak($x - 1, $y, $z),
+		    &tak($y - 1, $z, $x),
+		    &tak($z - 1, $x, $y));
+    }
+}
+&tak(18, 9, 0);
diff --git a/benchmark/other-lang/tak.py b/benchmark/other-lang/tak.py
new file mode 100644
index 0000000000..04f3f6829c
--- /dev/null
+++ b/benchmark/other-lang/tak.py
@@ -0,0 +1,8 @@
+def tak(x, y, z):
+	if not(y<x):
+		return z
+	else:
+		return tak(tak(x-1, y, z),
+		           tak(y-1, z, x),
+		           tak(z-1, x, y))
+tak(18, 9, 0)
diff --git a/benchmark/other-lang/tak.rb b/benchmark/other-lang/tak.rb
new file mode 100644
index 0000000000..efe5380f4e
--- /dev/null
+++ b/benchmark/other-lang/tak.rb
@@ -0,0 +1,13 @@
+
+def tak x, y, z
+  unless y < x
+    z
+  else
+    tak( tak(x-1, y, z),
+         tak(y-1, z, x),
+         tak(z-1, x, y))
+  end
+end
+
+tak(18, 9, 0)
+
diff --git a/benchmark/other-lang/tak.scm b/benchmark/other-lang/tak.scm
new file mode 100644
index 0000000000..52a7629ee5
--- /dev/null
+++ b/benchmark/other-lang/tak.scm
@@ -0,0 +1,10 @@
+(define (tak x y z)
+        (if (not (< y x))
+            z
+          (tak (tak (- x 1) y z)
+               (tak (- y 1) z x)
+               (tak (- z 1) x y))))
+
+(tak 18 9 0)
+
+
diff --git a/benchmark/prepare_require.rb b/benchmark/prepare_require.rb
new file mode 100644
index 0000000000..c4786f04ad
--- /dev/null
+++ b/benchmark/prepare_require.rb
@@ -0,0 +1,25 @@
+require "fileutils"
+
+def prepare
+  num_files = 10000
+
+  basename = File.dirname($0)
+  data_dir = File.join(basename, "bm_require.data")
+
+  # skip if all of files exists
+  if File.exist?(File.join(data_dir, "c#{num_files}.rb"))
+    return
+  end
+
+  FileUtils.mkdir_p(data_dir)
+
+  1.upto(num_files) do |i|
+    f = File.open("#{data_dir}/c#{i}.rb", "w")
+    f.puts <<-END
+      class C#{i}
+      end
+    END
+  end
+end
+
+prepare
diff --git a/benchmark/prepare_require_thread.rb b/benchmark/prepare_require_thread.rb
new file mode 100644
index 0000000000..339ecb8b39
--- /dev/null
+++ b/benchmark/prepare_require_thread.rb
@@ -0,0 +1,2 @@
+load File.join(File.dirname(__FILE__), "prepare_require.rb")
+
diff --git a/benchmark/prepare_so_count_words.rb b/benchmark/prepare_so_count_words.rb
new file mode 100644
index 0000000000..ee2138cdb2
--- /dev/null
+++ b/benchmark/prepare_so_count_words.rb
@@ -0,0 +1,15 @@
+# prepare 'wc.input'
+
+def prepare_wc_input
+  wcinput = File.join(File.dirname($0), 'wc.input')
+  wcbase  = File.join(File.dirname($0), 'wc.input.base')
+  unless FileTest.exist?(wcinput)
+    data = File.read(wcbase)
+    13.times{
+      data << data
+    }
+    open(wcinput, 'w'){|f| f.write data}
+  end
+end
+
+prepare_wc_input
diff --git a/benchmark/prepare_so_k_nucleotide.rb b/benchmark/prepare_so_k_nucleotide.rb
new file mode 100644
index 0000000000..d83aeb7a7e
--- /dev/null
+++ b/benchmark/prepare_so_k_nucleotide.rb
@@ -0,0 +1,2 @@
+require_relative 'make_fasta_output'
+prepare_fasta_output(100_000)
diff --git a/benchmark/prepare_so_reverse_complement.rb b/benchmark/prepare_so_reverse_complement.rb
new file mode 100644
index 0000000000..da3ec2df14
--- /dev/null
+++ b/benchmark/prepare_so_reverse_complement.rb
@@ -0,0 +1,2 @@
+require_relative 'make_fasta_output'
+prepare_fasta_output(2_500_000)
diff --git a/benchmark/report.rb b/benchmark/report.rb
new file mode 100644
index 0000000000..d2dc56b1e1
--- /dev/null
+++ b/benchmark/report.rb
@@ -0,0 +1,79 @@
+#
+# YARV benchmark driver
+#
+
+require 'yarvutil'
+require 'benchmark'
+require 'rbconfig'
+
+def exec_command type, file, w
+  <<-EOP
+  $DRIVER_PATH = '#{File.dirname($0)}'
+  $LOAD_PATH.replace $LOAD_PATH | #{$LOAD_PATH.inspect}
+  require 'benchmark'
+  require 'yarvutil'
+#  print '#{type}'
+  begin
+    puts Benchmark.measure{
+      #{w}('#{file}')
+    }.utime
+  rescue Exception => exec_command_error_variable
+    puts "\t" + exec_command_error_variable.message
+  end
+  EOP
+end
+
+def benchmark cmd
+  rubybin = ENV['RUBY'] || RbConfig.ruby
+
+  IO.popen(rubybin, 'r+'){|io|
+    io.write cmd
+    io.close_write
+    return io.gets
+  }
+end
+
+def ruby_exec file
+  prog = exec_command 'ruby', file, 'load'
+  benchmark prog
+end
+
+def yarv_exec file
+  prog = exec_command 'yarv', file, 'YARVUtil.load_bm'
+  benchmark prog
+end
+
+$wr = $wy = nil
+
+def measure bench
+  file = File.dirname($0) + "/bm_#{bench}.rb"
+  r = ruby_exec(file).to_f
+  y = yarv_exec(file).to_f
+  puts "#{bench}\t#{r}\t#{y}"
+end
+
+def measure2
+  r = ruby_exec.to_f
+  y = yarv_exec.to_f
+  puts r/y
+end
+
+if $0 == __FILE__
+  %w{
+    whileloop
+    whileloop2
+    times
+    const
+    method
+    poly_method
+    block
+    rescue
+    rescue2
+  }.each{|bench|
+    measure bench
+  }
+end
+
+
+
+
diff --git a/benchmark/run.rb b/benchmark/run.rb
new file mode 100644
index 0000000000..0cd2363849
--- /dev/null
+++ b/benchmark/run.rb
@@ -0,0 +1,127 @@
+#
+# Ruby benchmark driver
+#
+
+require 'benchmark'
+require 'rbconfig'
+
+$matzrubyonly = false
+$rubyonly = false
+
+$results  = []
+
+# prepare 'wc.input'
+def prepare_wc_input
+  wcinput = File.join(File.dirname($0), 'wc.input')
+  wcbase  = File.join(File.dirname($0), 'wc.input.base')
+  unless FileTest.exist?(wcinput)
+    data = File.read(wcbase)
+    13.times{
+      data << data
+    }
+    open(wcinput, 'w'){|f| f.write data}
+  end
+end
+
+prepare_wc_input
+
+def bm file
+  prog = File.readlines(file).map{|e| e.rstrip}.join("\n")
+  return if prog.empty?
+
+  /[a-z]+_(.+)\.rb/ =~ file
+  bm_name = $1
+  puts '-----------------------------------------------------------' unless $rubyonly || $matzrubyonly
+  puts "#{bm_name}: "
+
+
+puts <<EOS unless $matzrubyonly || $rubyonly
+#{prog}
+--
+EOS
+  begin
+    result = [bm_name]
+    result << matzruby_exec(file) unless $rubyonly
+    result << ruby_exec(file) unless $matzrubyonly
+    $results << result
+
+  rescue Exception => e
+    puts
+    puts "** benchmark failure: #{e}"
+    puts e.backtrace
+  end
+end
+
+def benchmark file, bin
+  m = Benchmark.measure{
+    `#{bin} #{$opts} #{file}`
+  }
+  sec = '%.3f' % m.real
+  puts " #{sec}"
+  sec
+end
+
+def ruby_exec file
+  print 'ruby'
+  benchmark file, $ruby_program
+end
+
+def matzruby_exec file
+  print 'matz'
+  rubylib = ENV['RUBYLIB']
+  ENV['RUBYLIB'] = ''
+  r = benchmark file, $matzruby_program
+  ENV['RUBYLIB'] = rubylib
+  r
+end
+
+if $0 == __FILE__
+  ARGV.each{|arg|
+    case arg
+    when /\A--ruby=(.+)/
+      $ruby_program = $1
+    when /\A--matzruby=(.+)/
+      $matzruby_program = $1
+    when /\A--opts=(.+)/
+      $opts = $1
+    when /\A(-r|--only-ruby)\z/
+      $rubyonly = true
+    when /\A(-m|--only-matzruby)\z/
+      $matzrubyonly = true
+    end
+  }
+  ARGV.delete_if{|arg|
+    /\A-/ =~ arg
+  }
+
+  puts "MatzRuby:"
+  system("#{$matzruby_program} -v")
+  puts "Ruby:"
+  system("#{$ruby_program} -v")
+  puts
+
+  if ARGV.empty?
+    Dir.glob(File.dirname(__FILE__) + '/bm_*.rb').sort.each{|file|
+      bm file
+    }
+  else
+    ARGV.each{|file|
+      Dir.glob(File.join(File.dirname(__FILE__), file + '*')){|ef|
+        # file = "#{File.dirname(__FILE__)}/#{file}.rb"
+        bm ef
+      }
+    }
+  end
+
+  puts
+  puts "-- benchmark summary ---------------------------"
+  $results.each{|res|
+    print res.shift, "\t"
+    (res||[]).each{|result|
+      /([\d\.]+)/ =~ result
+      print $1 + "\t" if $1
+    }
+    puts
+  }
+end
+
diff --git a/benchmark/runc.rb b/benchmark/runc.rb
new file mode 100644
index 0000000000..97c5cef045
--- /dev/null
+++ b/benchmark/runc.rb
@@ -0,0 +1,27 @@
+#
+#
+#
+
+require 'benchmark'
+require 'rbconfig'
+
+$rubybin = ENV['RUBY'] || RbConfig.ruby
+
+def runfile file
+  puts file
+  file = File.join(File.dirname($0), 'contrib', file)
+  Benchmark.bm{|x|
+    x.report('ruby'){
+      system("#{$rubybin} #{file}")
+    }
+    x.report('yarv'){
+      system("#{$rubybin} -rite -I.. #{file}")
+    }
+  }
+end
+
+ARGV.each{|file|
+  runfile file
+}
+
+
diff --git a/benchmark/wc.input.base b/benchmark/wc.input.base
new file mode 100644
index 0000000000..41143fbac0
--- /dev/null
+++ b/benchmark/wc.input.base
@@ -0,0 +1,25 @@
+Subject:      Re: Who was Izchak Miller?
+From:         "Jane D. Anonymous" <nobody@yale.edu>
+Date:         1996/04/28
+Message-Id:   <4lv7bc$oh@news.ycc.yale.edu>
+References:   <317C405E.5DFA@panix.com> <4lk6vl$gde@ns.oar.net>
+To:           75176.2330@compuserve.com
+Content-Type: text/plain; charset=us-ascii
+Organization: Yale University
+X-Url:        news:4lk6vl$gde@ns.oar.net
+Mime-Version: 1.0
+Newsgroups:   rec.games.roguelike.nethack
+X-Mailer:     Mozilla 1.1N (Macintosh; I; 68K)
+
+Hello there, Izchak Miller was my father.  When I was younger I spent 
+many a night, hunched over the keyboard with a cup of tea, playing 
+nethack with him and my brother.  my dad was a philosopher with a strong 
+weakness for fantasy/sci fi.  I remember when he started to get involved 
+with the Nethack team- my brother's Dungeons and Dragons monster book 
+found a regular place beside my dad's desk. it's nice to see him living 
+on in the game he loved so much :-).  
+                                                                  Tamar Miller
+
+The following is a really long word of 5000 characters:
+
+wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww
diff --git a/bignum.c b/bignum.c
index 7f14aee709..741fa2d21e 100644
--- a/bignum.c
+++ b/bignum.c
@@ -3,411 +3,4082 @@
   bignum.c -
 
   $Author$
-  $Date$
   created at: Fri Jun 10 00:48:55 JST 1994
 
-  Copyright (C) 1993-2003 Yukihiro Matsumoto
+  Copyright (C) 1993-2007 Yukihiro Matsumoto
 
 **********************************************************************/
 
-#include "ruby.h"
-#include "rubysig.h"
+#include "internal.h"
+#include "ruby/thread.h"
+#include "ruby/util.h"
 
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
 #include <math.h>
 #include <float.h>
 #include <ctype.h>
 #ifdef HAVE_IEEEFP_H
 #include <ieeefp.h>
 #endif
+#include "ruby_assert.h"
+
+#if defined(HAVE_LIBGMP) && defined(HAVE_GMP_H)
+#define USE_GMP
+#include <gmp.h>
+#endif
+
+#define RB_BIGNUM_TYPE_P(x) RB_TYPE_P((x), T_BIGNUM)
 
+#ifndef RUBY_INTEGER_UNIFICATION
 VALUE rb_cBignum;
+#endif
+const char ruby_digitmap[] = "0123456789abcdefghijklmnopqrstuvwxyz";
 
-#if defined __MINGW32__
-#define USHORT _USHORT
+#ifndef SIZEOF_BDIGIT_DBL
+# if SIZEOF_INT*2 <= SIZEOF_LONG_LONG
+#  define SIZEOF_BDIGIT_DBL SIZEOF_LONG_LONG
+# else
+#  define SIZEOF_BDIGIT_DBL SIZEOF_LONG
+# endif
 #endif
 
-#define BDIGITS(x) ((BDIGIT*)RBIGNUM(x)->digits)
-#define BITSPERDIG (SIZEOF_BDIGITS*CHAR_BIT)
+STATIC_ASSERT(sizeof_bdigit_dbl, sizeof(BDIGIT_DBL) == SIZEOF_BDIGIT_DBL);
+STATIC_ASSERT(sizeof_bdigit_dbl_signed, sizeof(BDIGIT_DBL_SIGNED) == SIZEOF_BDIGIT_DBL);
+STATIC_ASSERT(sizeof_bdigit, SIZEOF_BDIGIT <= sizeof(BDIGIT));
+STATIC_ASSERT(sizeof_bdigit_and_dbl, SIZEOF_BDIGIT*2 <= SIZEOF_BDIGIT_DBL);
+STATIC_ASSERT(bdigit_signedness, 0 < (BDIGIT)-1);
+STATIC_ASSERT(bdigit_dbl_signedness, 0 < (BDIGIT_DBL)-1);
+STATIC_ASSERT(bdigit_dbl_signed_signedness, 0 > (BDIGIT_DBL_SIGNED)-1);
+STATIC_ASSERT(rbignum_embed_len_max, BIGNUM_EMBED_LEN_MAX <= (BIGNUM_EMBED_LEN_MASK >> BIGNUM_EMBED_LEN_SHIFT));
+
+#if SIZEOF_BDIGIT < SIZEOF_LONG
+STATIC_ASSERT(sizeof_long_and_sizeof_bdigit, SIZEOF_LONG % SIZEOF_BDIGIT == 0);
+#else
+STATIC_ASSERT(sizeof_long_and_sizeof_bdigit, SIZEOF_BDIGIT % SIZEOF_LONG == 0);
+#endif
+
+#ifdef WORDS_BIGENDIAN
+#   define HOST_BIGENDIAN_P 1
+#else
+#   define HOST_BIGENDIAN_P 0
+#endif
+#define ALIGNOF(type) ((int)offsetof(struct { char f1; type f2; }, f2))
+/* (!LSHIFTABLE(d, n) ? 0 : (n)) is same as n but suppress a warning, C4293, by Visual Studio.  */
+#define LSHIFTABLE(d, n) ((n) < sizeof(d) * CHAR_BIT)
+#define LSHIFTX(d, n) (!LSHIFTABLE(d, n) ? 0 : ((d) << (!LSHIFTABLE(d, n) ? 0 : (n))))
+#define CLEAR_LOWBITS(d, numbits) ((d) & LSHIFTX(~((d)*0), (numbits)))
+#define FILL_LOWBITS(d, numbits) ((d) | (LSHIFTX(((d)*0+1), (numbits))-1))
+#define POW2_P(x) (((x)&((x)-1))==0)
+
+#define BDIGITS(x) (BIGNUM_DIGITS(x))
+#define BITSPERDIG (SIZEOF_BDIGIT*CHAR_BIT)
 #define BIGRAD ((BDIGIT_DBL)1 << BITSPERDIG)
-#define DIGSPERLONG ((unsigned int)(SIZEOF_LONG/SIZEOF_BDIGITS))
-#if HAVE_LONG_LONG
-# define DIGSPERLL ((unsigned int)(SIZEOF_LONG_LONG/SIZEOF_BDIGITS))
+#define BIGRAD_HALF ((BDIGIT)(BIGRAD >> 1))
+#define BDIGIT_MSB(d) (((d) & BIGRAD_HALF) != 0)
+#define BIGUP(x) LSHIFTX(((x) + (BDIGIT_DBL)0), BITSPERDIG)
+#define BIGDN(x) RSHIFT((x),BITSPERDIG)
+#define BIGLO(x) ((BDIGIT)((x) & BDIGMAX))
+#define BDIGMAX ((BDIGIT)(BIGRAD-1))
+#define BDIGIT_DBL_MAX (~(BDIGIT_DBL)0)
+
+#if SIZEOF_BDIGIT == 2
+#   define swap_bdigit(x) swap16(x)
+#elif SIZEOF_BDIGIT == 4
+#   define swap_bdigit(x) swap32(x)
+#elif SIZEOF_BDIGIT == 8
+#   define swap_bdigit(x) swap64(x)
 #endif
-#define BIGUP(x) ((BDIGIT_DBL)(x) << BITSPERDIG)
-#define BIGDN(x) RSHIFT(x,BITSPERDIG)
-#define BIGLO(x) ((BDIGIT)((x) & (BIGRAD-1)))
-#define BDIGMAX ((BDIGIT)-1)
 
-#define BIGZEROP(x) (RBIGNUM(x)->len == 0 || \
+#define BIGZEROP(x) (BIGNUM_LEN(x) == 0 || \
 		     (BDIGITS(x)[0] == 0 && \
-		      (RBIGNUM(x)->len == 1 || bigzero_p(x))))
+		      (BIGNUM_LEN(x) == 1 || bigzero_p(x))))
+#define BIGSIZE(x) (BIGNUM_LEN(x) == 0 ? (size_t)0 : \
+    BDIGITS(x)[BIGNUM_LEN(x)-1] ? \
+        (size_t)(BIGNUM_LEN(x)*SIZEOF_BDIGIT - nlz(BDIGITS(x)[BIGNUM_LEN(x)-1])/CHAR_BIT) : \
+    rb_absint_size(x, NULL))
+
+#define BIGDIVREM_EXTRA_WORDS 1
+#define bdigit_roomof(n) roomof(n, SIZEOF_BDIGIT)
+#define BARY_ARGS(ary) ary, numberof(ary)
+
+#define BARY_ADD(z, x, y) bary_add(BARY_ARGS(z), BARY_ARGS(x), BARY_ARGS(y))
+#define BARY_SUB(z, x, y) bary_sub(BARY_ARGS(z), BARY_ARGS(x), BARY_ARGS(y))
+#define BARY_SHORT_MUL(z, x, y) bary_short_mul(BARY_ARGS(z), BARY_ARGS(x), BARY_ARGS(y))
+#define BARY_DIVMOD(q, r, x, y) bary_divmod(BARY_ARGS(q), BARY_ARGS(r), BARY_ARGS(x), BARY_ARGS(y))
+#define BARY_ZERO_P(x) bary_zero_p(BARY_ARGS(x))
+
+#define BIGNUM_SET_NEGATIVE_SIGN(b) BIGNUM_SET_SIGN(b, 0)
+#define BIGNUM_SET_POSITIVE_SIGN(b) BIGNUM_SET_SIGN(b, 1)
+
+#define bignew(len,sign) bignew_1(rb_cInteger,(len),(sign))
+
+#define BDIGITS_ZERO(ptr, n) do { \
+  BDIGIT *bdigitz_zero_ptr = (ptr); \
+  size_t bdigitz_zero_n = (n); \
+  while (bdigitz_zero_n) { \
+    *bdigitz_zero_ptr++ = 0; \
+    bdigitz_zero_n--; \
+  } \
+} while (0)
+
+#define BARY_TRUNC(ds, n) do { \
+        while (0 < (n) && (ds)[(n)-1] == 0) \
+            (n)--; \
+    } while (0)
+
+#define KARATSUBA_BALANCED(xn, yn) ((yn)/2 < (xn))
+#define TOOM3_BALANCED(xn, yn) (((yn)+2)/3 * 2 < (xn))
+
+#define GMP_MUL_DIGITS 20
+#define KARATSUBA_MUL_DIGITS 70
+#define TOOM3_MUL_DIGITS 150
+
+#define GMP_DIV_DIGITS 20
+#define GMP_BIG2STR_DIGITS 20
+#define GMP_STR2BIG_DIGITS 20
+
+typedef void (mulfunc_t)(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, BDIGIT *wds, size_t wn);
+
+static mulfunc_t bary_mul_toom3_start;
+static mulfunc_t bary_mul_karatsuba_start;
+static BDIGIT bigdivrem_single(BDIGIT *qds, const BDIGIT *xds, size_t xn, BDIGIT y);
+static void bary_divmod(BDIGIT *qds, size_t qn, BDIGIT *rds, size_t rn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn);
+
+static VALUE bigmul0(VALUE x, VALUE y);
+static void bary_mul_toom3(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, BDIGIT *wds, size_t wn);
+static VALUE bignew_1(VALUE klass, size_t len, int sign);
+static inline VALUE bigtrunc(VALUE x);
+
+static VALUE bigsq(VALUE x);
+static void bigdivmod(VALUE x, VALUE y, volatile VALUE *divp, volatile VALUE *modp);
+static inline VALUE power_cache_get_power(int base, int power_level, size_t *numdigits_ret);
+
+#if SIZEOF_BDIGIT <= SIZEOF_INT
+static int nlz(BDIGIT x) { return nlz_int((unsigned int)x) - (SIZEOF_INT-SIZEOF_BDIGIT) * CHAR_BIT; }
+#elif SIZEOF_BDIGIT <= SIZEOF_LONG
+static int nlz(BDIGIT x) { return nlz_long((unsigned long)x) - (SIZEOF_LONG-SIZEOF_BDIGIT) * CHAR_BIT; }
+#elif SIZEOF_BDIGIT <= SIZEOF_LONG_LONG
+static int nlz(BDIGIT x) { return nlz_long_long((unsigned LONG_LONG)x) - (SIZEOF_LONG_LONG-SIZEOF_BDIGIT) * CHAR_BIT; }
+#elif SIZEOF_BDIGIT <= SIZEOF_INT128_T
+static int nlz(BDIGIT x) { return nlz_int128((uint128_t)x) - (SIZEOF_INT128_T-SIZEOF_BDIGIT) * CHAR_BIT; }
+#endif
+
+#define U16(a) ((uint16_t)(a))
+#define U32(a) ((uint32_t)(a))
+#ifdef HAVE_UINT64_T
+#define U64(a,b) (((uint64_t)(a) << 32) | (b))
+#endif
+#ifdef HAVE_UINT128_T
+#define U128(a,b,c,d) (((uint128_t)U64(a,b) << 64) | U64(c,d))
+#endif
+
+/* The following script, maxpow.rb, generates the tables follows.
+
+def big(n, bits)
+  ns = []
+  ((bits+31)/32).times {
+    ns << sprintf("0x%08x", n & 0xffff_ffff)
+    n >>= 32
+  }
+  "U#{bits}(" + ns.reverse.join(",") + ")"
+end
+def values(ary, width, indent)
+  lines = [""]
+  ary.each {|e|
+    lines << "" if !ary.last.empty? && width < (lines.last + e + ", ").length
+    lines.last << e + ", "
+  }
+  lines.map {|line| " " * indent + line.chomp(" ") + "\n" }.join
+end
+[16,32,64,128].each {|bits|
+  max = 2**bits-1
+  exps = []
+  nums = []
+  2.upto(36) {|base|
+    exp = 0
+    n = 1
+    while n * base <= max
+      exp += 1
+      n *= base
+    end
+    exps << exp.to_s
+    nums << big(n, bits)
+  }
+  puts "#ifdef HAVE_UINT#{bits}_T"
+  puts "static const int maxpow#{bits}_exp[35] = {"
+  print values(exps, 70, 4)
+  puts "};"
+  puts "static const uint#{bits}_t maxpow#{bits}_num[35] = {"
+  print values(nums, 70, 4)
+  puts "};"
+  puts "#endif"
+}
+
+ */
+
+#if SIZEOF_BDIGIT_DBL == 2
+static const int maxpow16_exp[35] = {
+    15, 10, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3,
+    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+};
+static const uint16_t maxpow16_num[35] = {
+    U16(0x00008000), U16(0x0000e6a9), U16(0x00004000), U16(0x00003d09),
+    U16(0x0000b640), U16(0x000041a7), U16(0x00008000), U16(0x0000e6a9),
+    U16(0x00002710), U16(0x00003931), U16(0x00005100), U16(0x00006f91),
+    U16(0x00009610), U16(0x0000c5c1), U16(0x00001000), U16(0x00001331),
+    U16(0x000016c8), U16(0x00001acb), U16(0x00001f40), U16(0x0000242d),
+    U16(0x00002998), U16(0x00002f87), U16(0x00003600), U16(0x00003d09),
+    U16(0x000044a8), U16(0x00004ce3), U16(0x000055c0), U16(0x00005f45),
+    U16(0x00006978), U16(0x0000745f), U16(0x00008000), U16(0x00008c61),
+    U16(0x00009988), U16(0x0000a77b), U16(0x0000b640),
+};
+#elif SIZEOF_BDIGIT_DBL == 4
+static const int maxpow32_exp[35] = {
+    31, 20, 15, 13, 12, 11, 10, 10, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7,
+    7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+};
+static const uint32_t maxpow32_num[35] = {
+    U32(0x80000000), U32(0xcfd41b91), U32(0x40000000), U32(0x48c27395),
+    U32(0x81bf1000), U32(0x75db9c97), U32(0x40000000), U32(0xcfd41b91),
+    U32(0x3b9aca00), U32(0x8c8b6d2b), U32(0x19a10000), U32(0x309f1021),
+    U32(0x57f6c100), U32(0x98c29b81), U32(0x10000000), U32(0x18754571),
+    U32(0x247dbc80), U32(0x3547667b), U32(0x4c4b4000), U32(0x6b5a6e1d),
+    U32(0x94ace180), U32(0xcaf18367), U32(0x0b640000), U32(0x0e8d4a51),
+    U32(0x1269ae40), U32(0x17179149), U32(0x1cb91000), U32(0x23744899),
+    U32(0x2b73a840), U32(0x34e63b41), U32(0x40000000), U32(0x4cfa3cc1),
+    U32(0x5c13d840), U32(0x6d91b519), U32(0x81bf1000),
+};
+#elif SIZEOF_BDIGIT_DBL == 8 && defined HAVE_UINT64_T
+static const int maxpow64_exp[35] = {
+    63, 40, 31, 27, 24, 22, 21, 20, 19, 18, 17, 17, 16, 16, 15, 15, 15,
+    15, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12,
+    12,
+};
+static const uint64_t maxpow64_num[35] = {
+    U64(0x80000000,0x00000000), U64(0xa8b8b452,0x291fe821),
+    U64(0x40000000,0x00000000), U64(0x6765c793,0xfa10079d),
+    U64(0x41c21cb8,0xe1000000), U64(0x36427987,0x50226111),
+    U64(0x80000000,0x00000000), U64(0xa8b8b452,0x291fe821),
+    U64(0x8ac72304,0x89e80000), U64(0x4d28cb56,0xc33fa539),
+    U64(0x1eca170c,0x00000000), U64(0x780c7372,0x621bd74d),
+    U64(0x1e39a505,0x7d810000), U64(0x5b27ac99,0x3df97701),
+    U64(0x10000000,0x00000000), U64(0x27b95e99,0x7e21d9f1),
+    U64(0x5da0e1e5,0x3c5c8000), U64(0xd2ae3299,0xc1c4aedb),
+    U64(0x16bcc41e,0x90000000), U64(0x2d04b7fd,0xd9c0ef49),
+    U64(0x5658597b,0xcaa24000), U64(0xa0e20737,0x37609371),
+    U64(0x0c29e980,0x00000000), U64(0x14adf4b7,0x320334b9),
+    U64(0x226ed364,0x78bfa000), U64(0x383d9170,0xb85ff80b),
+    U64(0x5a3c23e3,0x9c000000), U64(0x8e651373,0x88122bcd),
+    U64(0xdd41bb36,0xd259e000), U64(0x0aee5720,0xee830681),
+    U64(0x10000000,0x00000000), U64(0x172588ad,0x4f5f0981),
+    U64(0x211e44f7,0xd02c1000), U64(0x2ee56725,0xf06e5c71),
+    U64(0x41c21cb8,0xe1000000),
+};
+#elif SIZEOF_BDIGIT_DBL == 16 && defined HAVE_UINT128_T
+static const int maxpow128_exp[35] = {
+    127, 80, 63, 55, 49, 45, 42, 40, 38, 37, 35, 34, 33, 32, 31, 31, 30,
+    30, 29, 29, 28, 28, 27, 27, 27, 26, 26, 26, 26, 25, 25, 25, 25, 24,
+    24,
+};
+static const uint128_t maxpow128_num[35] = {
+    U128(0x80000000,0x00000000,0x00000000,0x00000000),
+    U128(0x6f32f1ef,0x8b18a2bc,0x3cea5978,0x9c79d441),
+    U128(0x40000000,0x00000000,0x00000000,0x00000000),
+    U128(0xd0cf4b50,0xcfe20765,0xfff4b4e3,0xf741cf6d),
+    U128(0x6558e2a0,0x921fe069,0x42860000,0x00000000),
+    U128(0x5080c7b7,0xd0e31ba7,0x5911a67d,0xdd3d35e7),
+    U128(0x40000000,0x00000000,0x00000000,0x00000000),
+    U128(0x6f32f1ef,0x8b18a2bc,0x3cea5978,0x9c79d441),
+    U128(0x4b3b4ca8,0x5a86c47a,0x098a2240,0x00000000),
+    U128(0xffd1390a,0x0adc2fb8,0xdabbb817,0x4d95c99b),
+    U128(0x2c6fdb36,0x4c25e6c0,0x00000000,0x00000000),
+    U128(0x384bacd6,0x42c343b4,0xe90c4272,0x13506d29),
+    U128(0x31f5db32,0xa34aced6,0x0bf13a0e,0x00000000),
+    U128(0x20753ada,0xfd1e839f,0x53686d01,0x3143ee01),
+    U128(0x10000000,0x00000000,0x00000000,0x00000000),
+    U128(0x68ca11d6,0xb4f6d1d1,0xfaa82667,0x8073c2f1),
+    U128(0x223e493b,0xb3bb69ff,0xa4b87d6c,0x40000000),
+    U128(0xad62418d,0x14ea8247,0x01c4b488,0x6cc66f59),
+    U128(0x2863c1f5,0xcdae42f9,0x54000000,0x00000000),
+    U128(0xa63fd833,0xb9386b07,0x36039e82,0xbe651b25),
+    U128(0x1d1f7a9c,0xd087a14d,0x28cdf3d5,0x10000000),
+    U128(0x651b5095,0xc2ea8fc1,0xb30e2c57,0x77aaf7e1),
+    U128(0x0ddef20e,0xff760000,0x00000000,0x00000000),
+    U128(0x29c30f10,0x29939b14,0x6664242d,0x97d9f649),
+    U128(0x786a435a,0xe9558b0e,0x6aaf6d63,0xa8000000),
+    U128(0x0c5afe6f,0xf302bcbf,0x94fd9829,0xd87f5079),
+    U128(0x1fce575c,0xe1692706,0x07100000,0x00000000),
+    U128(0x4f34497c,0x8597e144,0x36e91802,0x00528229),
+    U128(0xbf3a8e1d,0x41ef2170,0x7802130d,0x84000000),
+    U128(0x0e7819e1,0x7f1eb0fb,0x6ee4fb89,0x01d9531f),
+    U128(0x20000000,0x00000000,0x00000000,0x00000000),
+    U128(0x4510460d,0xd9e879c0,0x14a82375,0x2f22b321),
+    U128(0x91abce3c,0x4b4117ad,0xe76d35db,0x22000000),
+    U128(0x08973ea3,0x55d75bc2,0x2e42c391,0x727d69e1),
+    U128(0x10e425c5,0x6daffabc,0x35c10000,0x00000000),
+};
+#endif
+
+static BDIGIT_DBL
+maxpow_in_bdigit_dbl(int base, int *exp_ret)
+{
+    BDIGIT_DBL maxpow;
+    int exponent;
+
+    assert(2 <= base && base <= 36);
+
+    {
+#if SIZEOF_BDIGIT_DBL == 2
+        maxpow = maxpow16_num[base-2];
+        exponent = maxpow16_exp[base-2];
+#elif SIZEOF_BDIGIT_DBL == 4
+        maxpow = maxpow32_num[base-2];
+        exponent = maxpow32_exp[base-2];
+#elif SIZEOF_BDIGIT_DBL == 8 && defined HAVE_UINT64_T
+        maxpow = maxpow64_num[base-2];
+        exponent = maxpow64_exp[base-2];
+#elif SIZEOF_BDIGIT_DBL == 16 && defined HAVE_UINT128_T
+        maxpow = maxpow128_num[base-2];
+        exponent = maxpow128_exp[base-2];
+#else
+        maxpow = base;
+        exponent = 1;
+        while (maxpow <= BDIGIT_DBL_MAX / base) {
+            maxpow *= base;
+            exponent++;
+        }
+#endif
+    }
+
+    *exp_ret = exponent;
+    return maxpow;
+}
+
+static inline BDIGIT_DBL
+bary2bdigitdbl(const BDIGIT *ds, size_t n)
+{
+    assert(n <= 2);
+
+    if (n == 2)
+        return ds[0] | BIGUP(ds[1]);
+    if (n == 1)
+        return ds[0];
+    return 0;
+}
+
+static inline void
+bdigitdbl2bary(BDIGIT *ds, size_t n, BDIGIT_DBL num)
+{
+    assert(n == 2);
+
+    ds[0] = BIGLO(num);
+    ds[1] = (BDIGIT)BIGDN(num);
+}
 
-static int bigzero_p(VALUE);
 static int
-bigzero_p(x)
-    VALUE x;
+bary_cmp(const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
 {
-    long i;
-    for (i = 0; i < RBIGNUM(x)->len; ++i) {
-	if (BDIGITS(x)[i]) return 0;
+    BARY_TRUNC(xds, xn);
+    BARY_TRUNC(yds, yn);
+
+    if (xn < yn)
+        return -1;
+    if (xn > yn)
+        return 1;
+
+    while (xn-- && xds[xn] == yds[xn])
+        ;
+    if (xn == (size_t)-1)
+        return 0;
+    return xds[xn] < yds[xn] ? -1 : 1;
+}
+
+static BDIGIT
+bary_small_lshift(BDIGIT *zds, const BDIGIT *xds, size_t n, int shift)
+{
+    size_t i;
+    BDIGIT_DBL num = 0;
+    assert(0 <= shift && shift < BITSPERDIG);
+
+    for (i=0; i<n; i++) {
+	num = num | (BDIGIT_DBL)*xds++ << shift;
+	*zds++ = BIGLO(num);
+	num = BIGDN(num);
     }
+    return BIGLO(num);
+}
+
+static void
+bary_small_rshift(BDIGIT *zds, const BDIGIT *xds, size_t n, int shift, BDIGIT higher_bdigit)
+{
+    BDIGIT_DBL num = 0;
+    BDIGIT x;
+
+    assert(0 <= shift && shift < BITSPERDIG);
+
+    num = BIGUP(higher_bdigit);
+    while (n--) {
+	num = (num | xds[n]) >> shift;
+        x = xds[n];
+	zds[n] = BIGLO(num);
+	num = BIGUP(x);
+    }
+}
+
+static int
+bary_zero_p(BDIGIT *xds, size_t xn)
+{
+    if (xn == 0)
+        return 1;
+    do {
+	if (xds[--xn]) return 0;
+    } while (xn);
     return 1;
 }
 
-static VALUE
-bignew_1(klass, len, sign)
-    VALUE klass;
-    long len;
+static void
+bary_neg(BDIGIT *ds, size_t n)
+{
+    while (n--)
+        ds[n] = BIGLO(~ds[n]);
+}
+
+static int
+bary_2comp(BDIGIT *ds, size_t n)
+{
+    size_t i;
+    i = 0;
+    for (i = 0; i < n; i++) {
+        if (ds[i] != 0) {
+            goto non_zero;
+        }
+    }
+    return 1;
+
+  non_zero:
+    ds[i] = BIGLO(~ds[i] + 1);
+    i++;
+    for (; i < n; i++) {
+        ds[i] = BIGLO(~ds[i]);
+    }
+    return 0;
+}
+
+static void
+bary_swap(BDIGIT *ds, size_t num_bdigits)
+{
+    BDIGIT *p1 = ds;
+    BDIGIT *p2 = ds + num_bdigits - 1;
+    for (; p1 < p2; p1++, p2--) {
+        BDIGIT tmp = *p1;
+        *p1 = *p2;
+        *p2 = tmp;
+    }
+}
+
+#define INTEGER_PACK_WORDORDER_MASK \
+    (INTEGER_PACK_MSWORD_FIRST | \
+     INTEGER_PACK_LSWORD_FIRST)
+#define INTEGER_PACK_BYTEORDER_MASK \
+    (INTEGER_PACK_MSBYTE_FIRST | \
+     INTEGER_PACK_LSBYTE_FIRST | \
+     INTEGER_PACK_NATIVE_BYTE_ORDER)
+
+static void
+validate_integer_pack_format(size_t numwords, size_t wordsize, size_t nails, int flags, int supported_flags)
+{
+    int wordorder_bits = flags & INTEGER_PACK_WORDORDER_MASK;
+    int byteorder_bits = flags & INTEGER_PACK_BYTEORDER_MASK;
+
+    if (flags & ~supported_flags) {
+        rb_raise(rb_eArgError, "unsupported flags specified");
+    }
+    if (wordorder_bits == 0) {
+        if (1 < numwords)
+            rb_raise(rb_eArgError, "word order not specified");
+    }
+    else if (wordorder_bits != INTEGER_PACK_MSWORD_FIRST &&
+        wordorder_bits != INTEGER_PACK_LSWORD_FIRST)
+        rb_raise(rb_eArgError, "unexpected word order");
+    if (byteorder_bits == 0) {
+        rb_raise(rb_eArgError, "byte order not specified");
+    }
+    else if (byteorder_bits != INTEGER_PACK_MSBYTE_FIRST &&
+        byteorder_bits != INTEGER_PACK_LSBYTE_FIRST &&
+        byteorder_bits != INTEGER_PACK_NATIVE_BYTE_ORDER)
+        rb_raise(rb_eArgError, "unexpected byte order");
+    if (wordsize == 0)
+        rb_raise(rb_eArgError, "invalid wordsize: %"PRI_SIZE_PREFIX"u", wordsize);
+    if (SSIZE_MAX < wordsize)
+        rb_raise(rb_eArgError, "too big wordsize: %"PRI_SIZE_PREFIX"u", wordsize);
+    if (wordsize <= nails / CHAR_BIT)
+        rb_raise(rb_eArgError, "too big nails: %"PRI_SIZE_PREFIX"u", nails);
+    if (SIZE_MAX / wordsize < numwords)
+        rb_raise(rb_eArgError, "too big numwords * wordsize: %"PRI_SIZE_PREFIX"u * %"PRI_SIZE_PREFIX"u", numwords, wordsize);
+}
+
+static void
+integer_pack_loop_setup(
+    size_t numwords, size_t wordsize, size_t nails, int flags,
+    size_t *word_num_fullbytes_ret,
+    int *word_num_partialbits_ret,
+    size_t *word_start_ret,
+    ssize_t *word_step_ret,
+    size_t *word_last_ret,
+    size_t *byte_start_ret,
+    int *byte_step_ret)
+{
+    int wordorder_bits = flags & INTEGER_PACK_WORDORDER_MASK;
+    int byteorder_bits = flags & INTEGER_PACK_BYTEORDER_MASK;
+    size_t word_num_fullbytes;
+    int word_num_partialbits;
+    size_t word_start;
+    ssize_t word_step;
+    size_t word_last;
+    size_t byte_start;
+    int byte_step;
+
+    word_num_partialbits = CHAR_BIT - (int)(nails % CHAR_BIT);
+    if (word_num_partialbits == CHAR_BIT)
+        word_num_partialbits = 0;
+    word_num_fullbytes = wordsize - (nails / CHAR_BIT);
+    if (word_num_partialbits != 0) {
+        word_num_fullbytes--;
+    }
+
+    if (wordorder_bits == INTEGER_PACK_MSWORD_FIRST) {
+        word_start = wordsize*(numwords-1);
+        word_step = -(ssize_t)wordsize;
+        word_last = 0;
+    }
+    else {
+        word_start = 0;
+        word_step = wordsize;
+        word_last = wordsize*(numwords-1);
+    }
+
+    if (byteorder_bits == INTEGER_PACK_NATIVE_BYTE_ORDER) {
+#ifdef WORDS_BIGENDIAN
+        byteorder_bits = INTEGER_PACK_MSBYTE_FIRST;
+#else
+        byteorder_bits = INTEGER_PACK_LSBYTE_FIRST;
+#endif
+    }
+    if (byteorder_bits == INTEGER_PACK_MSBYTE_FIRST) {
+        byte_start = wordsize-1;
+        byte_step = -1;
+    }
+    else {
+        byte_start = 0;
+        byte_step = 1;
+    }
+
+    *word_num_partialbits_ret = word_num_partialbits;
+    *word_num_fullbytes_ret = word_num_fullbytes;
+    *word_start_ret = word_start;
+    *word_step_ret = word_step;
+    *word_last_ret = word_last;
+    *byte_start_ret = byte_start;
+    *byte_step_ret = byte_step;
+}
+
+static inline void
+integer_pack_fill_dd(BDIGIT **dpp, BDIGIT **dep, BDIGIT_DBL *ddp, int *numbits_in_dd_p)
+{
+    if (*dpp < *dep && BITSPERDIG <= (int)sizeof(*ddp) * CHAR_BIT - *numbits_in_dd_p) {
+        *ddp |= (BDIGIT_DBL)(*(*dpp)++) << *numbits_in_dd_p;
+        *numbits_in_dd_p += BITSPERDIG;
+    }
+    else if (*dpp == *dep) {
+        /* higher bits are infinity zeros */
+        *numbits_in_dd_p = (int)sizeof(*ddp) * CHAR_BIT;
+    }
+}
+
+static inline BDIGIT_DBL
+integer_pack_take_lowbits(int n, BDIGIT_DBL *ddp, int *numbits_in_dd_p)
+{
+    BDIGIT_DBL ret;
+    ret = (*ddp) & (((BDIGIT_DBL)1 << n) - 1);
+    *ddp >>= n;
+    *numbits_in_dd_p -= n;
+    return ret;
+}
+
+#if !defined(WORDS_BIGENDIAN)
+static int
+bytes_2comp(unsigned char *buf, size_t len)
+{
+    size_t i;
+    for (i = 0; i < len; i++)
+        buf[i] = ~buf[i];
+    for (i = 0; i < len; i++) {
+        buf[i]++;
+        if (buf[i] != 0)
+            return 0;
+    }
+    return 1;
+}
+#endif
+
+static int
+bary_pack(int sign, BDIGIT *ds, size_t num_bdigits, void *words, size_t numwords, size_t wordsize, size_t nails, int flags)
+{
+    BDIGIT *dp, *de;
+    unsigned char *buf, *bufend;
+
+    dp = ds;
+    de = ds + num_bdigits;
+
+    validate_integer_pack_format(numwords, wordsize, nails, flags,
+            INTEGER_PACK_MSWORD_FIRST|
+            INTEGER_PACK_LSWORD_FIRST|
+            INTEGER_PACK_MSBYTE_FIRST|
+            INTEGER_PACK_LSBYTE_FIRST|
+            INTEGER_PACK_NATIVE_BYTE_ORDER|
+            INTEGER_PACK_2COMP|
+            INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION);
+
+    while (dp < de && de[-1] == 0)
+        de--;
+    if (dp == de) {
+        sign = 0;
+    }
+
+    if (!(flags & INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION)) {
+        if (sign == 0) {
+            MEMZERO(words, unsigned char, numwords * wordsize);
+            return 0;
+        }
+        if (nails == 0 && numwords == 1) {
+            int need_swap = wordsize != 1 &&
+                (flags & INTEGER_PACK_BYTEORDER_MASK) != INTEGER_PACK_NATIVE_BYTE_ORDER &&
+                ((flags & INTEGER_PACK_MSBYTE_FIRST) ? !HOST_BIGENDIAN_P : HOST_BIGENDIAN_P);
+            if (0 < sign || !(flags & INTEGER_PACK_2COMP)) {
+                BDIGIT d;
+                if (wordsize == 1) {
+                    *((unsigned char *)words) = (unsigned char)(d = dp[0]);
+                    return ((1 < de - dp || CLEAR_LOWBITS(d, 8) != 0) ? 2 : 1) * sign;
+                }
+#if defined(HAVE_UINT16_T) && 2 <= SIZEOF_BDIGIT
+                if (wordsize == 2 && (uintptr_t)words % ALIGNOF(uint16_t) == 0) {
+                    uint16_t u = (uint16_t)(d = dp[0]);
+                    if (need_swap) u = swap16(u);
+                    *((uint16_t *)words) = u;
+                    return ((1 < de - dp || CLEAR_LOWBITS(d, 16) != 0) ? 2 : 1) * sign;
+                }
+#endif
+#if defined(HAVE_UINT32_T) && 4 <= SIZEOF_BDIGIT
+                if (wordsize == 4 && (uintptr_t)words % ALIGNOF(uint32_t) == 0) {
+                    uint32_t u = (uint32_t)(d = dp[0]);
+                    if (need_swap) u = swap32(u);
+                    *((uint32_t *)words) = u;
+                    return ((1 < de - dp || CLEAR_LOWBITS(d, 32) != 0) ? 2 : 1) * sign;
+                }
+#endif
+#if defined(HAVE_UINT64_T) && 8 <= SIZEOF_BDIGIT
+                if (wordsize == 8 && (uintptr_t)words % ALIGNOF(uint64_t) == 0) {
+                    uint64_t u = (uint64_t)(d = dp[0]);
+                    if (need_swap) u = swap64(u);
+                    *((uint64_t *)words) = u;
+                    return ((1 < de - dp || CLEAR_LOWBITS(d, 64) != 0) ? 2 : 1) * sign;
+                }
+#endif
+            }
+            else { /* sign < 0 && (flags & INTEGER_PACK_2COMP) */
+                BDIGIT_DBL_SIGNED d;
+                if (wordsize == 1) {
+                    *((unsigned char *)words) = (unsigned char)(d = -(BDIGIT_DBL_SIGNED)dp[0]);
+                    return (1 < de - dp || FILL_LOWBITS(d, 8) != -1) ? -2 : -1;
+                }
+#if defined(HAVE_UINT16_T) && 2 <= SIZEOF_BDIGIT
+                if (wordsize == 2 && (uintptr_t)words % ALIGNOF(uint16_t) == 0) {
+                    uint16_t u = (uint16_t)(d = -(BDIGIT_DBL_SIGNED)dp[0]);
+                    if (need_swap) u = swap16(u);
+                    *((uint16_t *)words) = u;
+                    return (wordsize == SIZEOF_BDIGIT && de - dp == 2 && dp[1] == 1 && dp[0] == 0) ? -1 :
+                        (1 < de - dp || FILL_LOWBITS(d, 16) != -1) ? -2 : -1;
+                }
+#endif
+#if defined(HAVE_UINT32_T) && 4 <= SIZEOF_BDIGIT
+                if (wordsize == 4 && (uintptr_t)words % ALIGNOF(uint32_t) == 0) {
+                    uint32_t u = (uint32_t)(d = -(BDIGIT_DBL_SIGNED)dp[0]);
+                    if (need_swap) u = swap32(u);
+                    *((uint32_t *)words) = u;
+                    return (wordsize == SIZEOF_BDIGIT && de - dp == 2 && dp[1] == 1 && dp[0] == 0) ? -1 :
+                        (1 < de - dp || FILL_LOWBITS(d, 32) != -1) ? -2 : -1;
+                }
+#endif
+#if defined(HAVE_UINT64_T) && 8 <= SIZEOF_BDIGIT
+                if (wordsize == 8 && (uintptr_t)words % ALIGNOF(uint64_t) == 0) {
+                    uint64_t u = (uint64_t)(d = -(BDIGIT_DBL_SIGNED)dp[0]);
+                    if (need_swap) u = swap64(u);
+                    *((uint64_t *)words) = u;
+                    return (wordsize == SIZEOF_BDIGIT && de - dp == 2 && dp[1] == 1 && dp[0] == 0) ? -1 :
+                        (1 < de - dp || FILL_LOWBITS(d, 64) != -1) ? -2 : -1;
+                }
+#endif
+            }
+        }
+#if !defined(WORDS_BIGENDIAN)
+        if (nails == 0 && SIZEOF_BDIGIT == sizeof(BDIGIT) &&
+            (flags & INTEGER_PACK_WORDORDER_MASK) == INTEGER_PACK_LSWORD_FIRST &&
+            (flags & INTEGER_PACK_BYTEORDER_MASK) != INTEGER_PACK_MSBYTE_FIRST) {
+            size_t src_size = (de - dp) * SIZEOF_BDIGIT;
+            size_t dst_size = numwords * wordsize;
+            int overflow = 0;
+            while (0 < src_size && ((unsigned char *)ds)[src_size-1] == 0)
+                src_size--;
+            if (src_size <= dst_size) {
+                MEMCPY(words, dp, char, src_size);
+                MEMZERO((char*)words + src_size, char, dst_size - src_size);
+            }
+            else {
+                MEMCPY(words, dp, char, dst_size);
+                overflow = 1;
+            }
+            if (sign < 0 && (flags & INTEGER_PACK_2COMP)) {
+                int zero_p = bytes_2comp(words, dst_size);
+                if (zero_p && overflow) {
+                    unsigned char *p = (unsigned char *)dp;
+                    if (dst_size == src_size-1 &&
+                        p[dst_size] == 1) {
+                        overflow = 0;
+                    }
+                }
+            }
+            if (overflow)
+                sign *= 2;
+            return sign;
+        }
+#endif
+        if (nails == 0 && SIZEOF_BDIGIT == sizeof(BDIGIT) &&
+            wordsize % SIZEOF_BDIGIT == 0 && (uintptr_t)words % ALIGNOF(BDIGIT) == 0) {
+            size_t bdigits_per_word = wordsize / SIZEOF_BDIGIT;
+            size_t src_num_bdigits = de - dp;
+            size_t dst_num_bdigits = numwords * bdigits_per_word;
+            int overflow = 0;
+            int mswordfirst_p = (flags & INTEGER_PACK_MSWORD_FIRST) != 0;
+            int msbytefirst_p = (flags & INTEGER_PACK_NATIVE_BYTE_ORDER) ? HOST_BIGENDIAN_P :
+                (flags & INTEGER_PACK_MSBYTE_FIRST) != 0;
+            if (src_num_bdigits <= dst_num_bdigits) {
+                MEMCPY(words, dp, BDIGIT, src_num_bdigits);
+                BDIGITS_ZERO((BDIGIT*)words + src_num_bdigits, dst_num_bdigits - src_num_bdigits);
+            }
+            else {
+                MEMCPY(words, dp, BDIGIT, dst_num_bdigits);
+                overflow = 1;
+            }
+            if (sign < 0 && (flags & INTEGER_PACK_2COMP)) {
+                int zero_p = bary_2comp(words, dst_num_bdigits);
+                if (zero_p && overflow &&
+                    dst_num_bdigits == src_num_bdigits-1 &&
+                    dp[dst_num_bdigits] == 1)
+                    overflow = 0;
+            }
+            if (msbytefirst_p != HOST_BIGENDIAN_P) {
+                size_t i;
+                for (i = 0; i < dst_num_bdigits; i++) {
+                    BDIGIT d = ((BDIGIT*)words)[i];
+                    ((BDIGIT*)words)[i] = swap_bdigit(d);
+                }
+            }
+            if (mswordfirst_p ? !msbytefirst_p : msbytefirst_p) {
+                size_t i;
+                BDIGIT *p = words;
+                for (i = 0; i < numwords; i++) {
+                    bary_swap(p, bdigits_per_word);
+                    p += bdigits_per_word;
+                }
+            }
+            if (mswordfirst_p) {
+                bary_swap(words, dst_num_bdigits);
+            }
+            if (overflow)
+                sign *= 2;
+            return sign;
+        }
+    }
+
+    buf = words;
+    bufend = buf + numwords * wordsize;
+
+    if (buf == bufend) {
+        /* overflow if non-zero*/
+        if (!(flags & INTEGER_PACK_2COMP) || 0 <= sign)
+            sign *= 2;
+        else {
+            if (de - dp == 1 && dp[0] == 1)
+                sign = -1; /* val == -1 == -2**(numwords*(wordsize*CHAR_BIT-nails)) */
+            else
+                sign = -2; /* val < -1 == -2**(numwords*(wordsize*CHAR_BIT-nails)) */
+        }
+    }
+    else if (dp == de) {
+        memset(buf, '\0', bufend - buf);
+    }
+    else if (dp < de && buf < bufend) {
+        int word_num_partialbits;
+        size_t word_num_fullbytes;
+
+        ssize_t word_step;
+        size_t byte_start;
+        int byte_step;
+
+        size_t word_start, word_last;
+        unsigned char *wordp, *last_wordp;
+        BDIGIT_DBL dd;
+        int numbits_in_dd;
+
+        integer_pack_loop_setup(numwords, wordsize, nails, flags,
+            &word_num_fullbytes, &word_num_partialbits,
+            &word_start, &word_step, &word_last, &byte_start, &byte_step);
+
+        wordp = buf + word_start;
+        last_wordp = buf + word_last;
+
+        dd = 0;
+        numbits_in_dd = 0;
+
+#define FILL_DD \
+    integer_pack_fill_dd(&dp, &de, &dd, &numbits_in_dd)
+#define TAKE_LOWBITS(n) \
+    integer_pack_take_lowbits(n, &dd, &numbits_in_dd)
+
+        while (1) {
+            size_t index_in_word = 0;
+            unsigned char *bytep = wordp + byte_start;
+            while (index_in_word < word_num_fullbytes) {
+                FILL_DD;
+                *bytep = TAKE_LOWBITS(CHAR_BIT);
+                bytep += byte_step;
+                index_in_word++;
+            }
+            if (word_num_partialbits) {
+                FILL_DD;
+                *bytep = TAKE_LOWBITS(word_num_partialbits);
+                bytep += byte_step;
+                index_in_word++;
+            }
+            while (index_in_word < wordsize) {
+                *bytep = 0;
+                bytep += byte_step;
+                index_in_word++;
+            }
+
+            if (wordp == last_wordp)
+                break;
+
+            wordp += word_step;
+        }
+        FILL_DD;
+        /* overflow tests */
+        if (dp != de || 1 < dd) {
+            /* 2**(numwords*(wordsize*CHAR_BIT-nails)+1) <= abs(val) */
+            sign *= 2;
+        }
+        else if (dd == 1) {
+            /* 2**(numwords*(wordsize*CHAR_BIT-nails)) <= abs(val) < 2**(numwords*(wordsize*CHAR_BIT-nails)+1) */
+            if (!(flags & INTEGER_PACK_2COMP) || 0 <= sign)
+                sign *= 2;
+            else { /* overflow_2comp && sign == -1 */
+                /* test lower bits are all zero. */
+                dp = ds;
+                while (dp < de && *dp == 0)
+                    dp++;
+                if (de - dp == 1 && /* only one non-zero word. */
+                    POW2_P(*dp)) /* *dp contains only one bit set. */
+                    sign = -1; /* val == -2**(numwords*(wordsize*CHAR_BIT-nails)) */
+                else
+                    sign = -2; /* val < -2**(numwords*(wordsize*CHAR_BIT-nails)) */
+            }
+        }
+    }
+
+    if ((flags & INTEGER_PACK_2COMP) && (sign < 0 && numwords != 0)) {
+        unsigned char *buf;
+
+        int word_num_partialbits;
+        size_t word_num_fullbytes;
+
+        ssize_t word_step;
+        size_t byte_start;
+        int byte_step;
+
+        size_t word_start, word_last;
+        unsigned char *wordp, *last_wordp;
+
+        unsigned int partialbits_mask;
+        int carry;
+
+        integer_pack_loop_setup(numwords, wordsize, nails, flags,
+            &word_num_fullbytes, &word_num_partialbits,
+            &word_start, &word_step, &word_last, &byte_start, &byte_step);
+
+        partialbits_mask = (1 << word_num_partialbits) - 1;
+
+        buf = words;
+        wordp = buf + word_start;
+        last_wordp = buf + word_last;
+
+        carry = 1;
+        while (1) {
+            size_t index_in_word = 0;
+            unsigned char *bytep = wordp + byte_start;
+            while (index_in_word < word_num_fullbytes) {
+                carry += (unsigned char)~*bytep;
+                *bytep = (unsigned char)carry;
+                carry >>= CHAR_BIT;
+                bytep += byte_step;
+                index_in_word++;
+            }
+            if (word_num_partialbits) {
+                carry += (*bytep & partialbits_mask) ^ partialbits_mask;
+                *bytep = carry & partialbits_mask;
+                carry >>= word_num_partialbits;
+                bytep += byte_step;
+                index_in_word++;
+            }
+
+            if (wordp == last_wordp)
+                break;
+
+            wordp += word_step;
+        }
+    }
+
+    return sign;
+#undef FILL_DD
+#undef TAKE_LOWBITS
+}
+
+static size_t
+integer_unpack_num_bdigits_small(size_t numwords, size_t wordsize, size_t nails, int *nlp_bits_ret)
+{
+    /* nlp_bits stands for number of leading padding bits */
+    size_t num_bits = (wordsize * CHAR_BIT - nails) * numwords;
+    size_t num_bdigits = (num_bits + BITSPERDIG - 1) / BITSPERDIG;
+    *nlp_bits_ret = (int)(num_bdigits * BITSPERDIG - num_bits);
+    return num_bdigits;
+}
+
+static size_t
+integer_unpack_num_bdigits_generic(size_t numwords, size_t wordsize, size_t nails, int *nlp_bits_ret)
+{
+    /* BITSPERDIG = SIZEOF_BDIGIT * CHAR_BIT */
+    /* num_bits = (wordsize * CHAR_BIT - nails) * numwords */
+    /* num_bdigits = (num_bits + BITSPERDIG - 1) / BITSPERDIG */
+
+    /* num_bits = CHAR_BIT * (wordsize * numwords) - nails * numwords = CHAR_BIT * num_bytes1 - nails * numwords */
+    size_t num_bytes1 = wordsize * numwords;
+
+    /* q1 * CHAR_BIT + r1 = numwords */
+    size_t q1 = numwords / CHAR_BIT;
+    size_t r1 = numwords % CHAR_BIT;
+
+    /* num_bits = CHAR_BIT * num_bytes1 - nails * (q1 * CHAR_BIT + r1) = CHAR_BIT * num_bytes2 - nails * r1 */
+    size_t num_bytes2 = num_bytes1 - nails * q1;
+
+    /* q2 * CHAR_BIT + r2 = nails */
+    size_t q2 = nails / CHAR_BIT;
+    size_t r2 = nails % CHAR_BIT;
+
+    /* num_bits = CHAR_BIT * num_bytes2 - (q2 * CHAR_BIT + r2) * r1 = CHAR_BIT * num_bytes3 - r1 * r2 */
+    size_t num_bytes3 = num_bytes2 - q2 * r1;
+
+    /* q3 * BITSPERDIG + r3 = num_bytes3 */
+    size_t q3 = num_bytes3 / BITSPERDIG;
+    size_t r3 = num_bytes3 % BITSPERDIG;
+
+    /* num_bits = CHAR_BIT * (q3 * BITSPERDIG + r3) - r1 * r2 = BITSPERDIG * num_digits1 + CHAR_BIT * r3 - r1 * r2 */
+    size_t num_digits1 = CHAR_BIT * q3;
+
+    /*
+     * if CHAR_BIT * r3 >= r1 * r2
+     *   CHAR_BIT * r3 - r1 * r2 = CHAR_BIT * BITSPERDIG - (CHAR_BIT * BITSPERDIG - (CHAR_BIT * r3 - r1 * r2))
+     *   q4 * BITSPERDIG + r4 = CHAR_BIT * BITSPERDIG - (CHAR_BIT * r3 - r1 * r2)
+     *   num_bits = BITSPERDIG * num_digits1 + CHAR_BIT * BITSPERDIG - (q4 * BITSPERDIG + r4) = BITSPERDIG * num_digits2 - r4
+     * else
+     *   q4 * BITSPERDIG + r4 = -(CHAR_BIT * r3 - r1 * r2)
+     *   num_bits = BITSPERDIG * num_digits1 - (q4 * BITSPERDIG + r4) = BITSPERDIG * num_digits2 - r4
+     * end
+     */
+
+    if (CHAR_BIT * r3 >= r1 * r2) {
+        size_t tmp1 = CHAR_BIT * BITSPERDIG - (CHAR_BIT * r3 - r1 * r2);
+        size_t q4 = tmp1 / BITSPERDIG;
+        int r4 = (int)(tmp1 % BITSPERDIG);
+        size_t num_digits2 = num_digits1 + CHAR_BIT - q4;
+        *nlp_bits_ret = r4;
+        return num_digits2;
+    }
+    else {
+        size_t tmp1 = r1 * r2 - CHAR_BIT * r3;
+        size_t q4 = tmp1 / BITSPERDIG;
+        int r4 = (int)(tmp1 % BITSPERDIG);
+        size_t num_digits2 = num_digits1 - q4;
+        *nlp_bits_ret = r4;
+        return num_digits2;
+    }
+}
+
+static size_t
+integer_unpack_num_bdigits(size_t numwords, size_t wordsize, size_t nails, int *nlp_bits_ret)
+{
+    size_t num_bdigits;
+
+    if (numwords <= (SIZE_MAX - (BITSPERDIG-1)) / CHAR_BIT / wordsize) {
+        num_bdigits = integer_unpack_num_bdigits_small(numwords, wordsize, nails, nlp_bits_ret);
+#ifdef DEBUG_INTEGER_PACK
+        {
+            int nlp_bits1;
+            size_t num_bdigits1 = integer_unpack_num_bdigits_generic(numwords, wordsize, nails, &nlp_bits1);
+            assert(num_bdigits == num_bdigits1);
+            assert(*nlp_bits_ret == nlp_bits1);
+        }
+#endif
+    }
+    else {
+        num_bdigits = integer_unpack_num_bdigits_generic(numwords, wordsize, nails, nlp_bits_ret);
+    }
+    return num_bdigits;
+}
+
+static inline void
+integer_unpack_push_bits(int data, int numbits, BDIGIT_DBL *ddp, int *numbits_in_dd_p, BDIGIT **dpp)
+{
+    (*ddp) |= ((BDIGIT_DBL)data) << (*numbits_in_dd_p);
+    *numbits_in_dd_p += numbits;
+    while (BITSPERDIG <= *numbits_in_dd_p) {
+        *(*dpp)++ = BIGLO(*ddp);
+        *ddp = BIGDN(*ddp);
+        *numbits_in_dd_p -= BITSPERDIG;
+    }
+}
+
+static int
+integer_unpack_single_bdigit(BDIGIT u, size_t size, int flags, BDIGIT *dp)
+{
     int sign;
+    if (flags & INTEGER_PACK_2COMP) {
+        sign = (flags & INTEGER_PACK_NEGATIVE) ?
+            ((size == SIZEOF_BDIGIT && u == 0) ? -2 : -1) :
+            ((u >> (size * CHAR_BIT - 1)) ? -1 : 1);
+        if (sign < 0) {
+            u |= LSHIFTX(BDIGMAX, size * CHAR_BIT);
+            u = BIGLO(1 + ~u);
+        }
+    }
+    else
+        sign = (flags & INTEGER_PACK_NEGATIVE) ? -1 : 1;
+    *dp = u;
+    return sign;
+}
+
+static int
+bary_unpack_internal(BDIGIT *bdigits, size_t num_bdigits, const void *words, size_t numwords, size_t wordsize, size_t nails, int flags, int nlp_bits)
+{
+    int sign;
+    const unsigned char *buf = words;
+    BDIGIT *dp;
+    BDIGIT *de;
+
+    dp = bdigits;
+    de = dp + num_bdigits;
+
+    if (!(flags & INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION)) {
+        if (nails == 0 && numwords == 1) {
+            int need_swap = wordsize != 1 &&
+                (flags & INTEGER_PACK_BYTEORDER_MASK) != INTEGER_PACK_NATIVE_BYTE_ORDER &&
+                ((flags & INTEGER_PACK_MSBYTE_FIRST) ? !HOST_BIGENDIAN_P : HOST_BIGENDIAN_P);
+            if (wordsize == 1) {
+                return integer_unpack_single_bdigit(*(uint8_t *)buf, sizeof(uint8_t), flags, dp);
+            }
+#if defined(HAVE_UINT16_T) && 2 <= SIZEOF_BDIGIT
+            if (wordsize == 2 && (uintptr_t)words % ALIGNOF(uint16_t) == 0) {
+                uint16_t u = *(uint16_t *)buf;
+                return integer_unpack_single_bdigit(need_swap ? swap16(u) : u, sizeof(uint16_t), flags, dp);
+            }
+#endif
+#if defined(HAVE_UINT32_T) && 4 <= SIZEOF_BDIGIT
+            if (wordsize == 4 && (uintptr_t)words % ALIGNOF(uint32_t) == 0) {
+                uint32_t u = *(uint32_t *)buf;
+                return integer_unpack_single_bdigit(need_swap ? swap32(u) : u, sizeof(uint32_t), flags, dp);
+            }
+#endif
+#if defined(HAVE_UINT64_T) && 8 <= SIZEOF_BDIGIT
+            if (wordsize == 8 && (uintptr_t)words % ALIGNOF(uint64_t) == 0) {
+                uint64_t u = *(uint64_t *)buf;
+                return integer_unpack_single_bdigit(need_swap ? swap64(u) : u, sizeof(uint64_t), flags, dp);
+            }
+#endif
+        }
+#if !defined(WORDS_BIGENDIAN)
+        if (nails == 0 && SIZEOF_BDIGIT == sizeof(BDIGIT) &&
+            (flags & INTEGER_PACK_WORDORDER_MASK) == INTEGER_PACK_LSWORD_FIRST &&
+            (flags & INTEGER_PACK_BYTEORDER_MASK) != INTEGER_PACK_MSBYTE_FIRST) {
+            size_t src_size = numwords * wordsize;
+            size_t dst_size = num_bdigits * SIZEOF_BDIGIT;
+            MEMCPY(dp, words, char, src_size);
+            if (flags & INTEGER_PACK_2COMP) {
+                if (flags & INTEGER_PACK_NEGATIVE) {
+                    int zero_p;
+                    memset((char*)dp + src_size, 0xff, dst_size - src_size);
+                    zero_p = bary_2comp(dp, num_bdigits);
+                    sign = zero_p ? -2 : -1;
+                }
+                else if (buf[src_size-1] >> (CHAR_BIT-1)) {
+                    memset((char*)dp + src_size, 0xff, dst_size - src_size);
+                    bary_2comp(dp, num_bdigits);
+                    sign = -1;
+                }
+                else {
+                    MEMZERO((char*)dp + src_size, char, dst_size - src_size);
+                    sign = 1;
+                }
+            }
+            else {
+                MEMZERO((char*)dp + src_size, char, dst_size - src_size);
+                sign = (flags & INTEGER_PACK_NEGATIVE) ? -1 : 1;
+            }
+            return sign;
+        }
+#endif
+        if (nails == 0 && SIZEOF_BDIGIT == sizeof(BDIGIT) &&
+            wordsize % SIZEOF_BDIGIT == 0) {
+            size_t bdigits_per_word = wordsize / SIZEOF_BDIGIT;
+            int mswordfirst_p = (flags & INTEGER_PACK_MSWORD_FIRST) != 0;
+            int msbytefirst_p = (flags & INTEGER_PACK_NATIVE_BYTE_ORDER) ? HOST_BIGENDIAN_P :
+                (flags & INTEGER_PACK_MSBYTE_FIRST) != 0;
+            MEMCPY(dp, words, BDIGIT, numwords*bdigits_per_word);
+            if (mswordfirst_p) {
+                bary_swap(dp, num_bdigits);
+            }
+            if (mswordfirst_p ? !msbytefirst_p : msbytefirst_p) {
+                size_t i;
+                BDIGIT *p = dp;
+                for (i = 0; i < numwords; i++) {
+                    bary_swap(p, bdigits_per_word);
+                    p += bdigits_per_word;
+                }
+            }
+            if (msbytefirst_p != HOST_BIGENDIAN_P) {
+                BDIGIT *p;
+                for (p = dp; p < de; p++) {
+                    BDIGIT d = *p;
+                    *p = swap_bdigit(d);
+                }
+            }
+            if (flags & INTEGER_PACK_2COMP) {
+                if (flags & INTEGER_PACK_NEGATIVE) {
+                    int zero_p = bary_2comp(dp, num_bdigits);
+                    sign = zero_p ? -2 : -1;
+                }
+                else if (BDIGIT_MSB(de[-1])) {
+                    bary_2comp(dp, num_bdigits);
+                    sign = -1;
+                }
+                else {
+                    sign = 1;
+                }
+            }
+            else {
+                sign = (flags & INTEGER_PACK_NEGATIVE) ? -1 : 1;
+            }
+            return sign;
+        }
+    }
+
+    if (num_bdigits != 0) {
+        int word_num_partialbits;
+        size_t word_num_fullbytes;
+
+        ssize_t word_step;
+        size_t byte_start;
+        int byte_step;
+
+        size_t word_start, word_last;
+        const unsigned char *wordp, *last_wordp;
+        BDIGIT_DBL dd;
+        int numbits_in_dd;
+
+        integer_pack_loop_setup(numwords, wordsize, nails, flags,
+            &word_num_fullbytes, &word_num_partialbits,
+            &word_start, &word_step, &word_last, &byte_start, &byte_step);
+
+        wordp = buf + word_start;
+        last_wordp = buf + word_last;
+
+        dd = 0;
+        numbits_in_dd = 0;
+
+#define PUSH_BITS(data, numbits) \
+        integer_unpack_push_bits(data, numbits, &dd, &numbits_in_dd, &dp)
+
+        while (1) {
+            size_t index_in_word = 0;
+            const unsigned char *bytep = wordp + byte_start;
+            while (index_in_word < word_num_fullbytes) {
+                PUSH_BITS(*bytep, CHAR_BIT);
+                bytep += byte_step;
+                index_in_word++;
+            }
+            if (word_num_partialbits) {
+                PUSH_BITS(*bytep & ((1 << word_num_partialbits) - 1), word_num_partialbits);
+                bytep += byte_step;
+                index_in_word++;
+            }
+
+            if (wordp == last_wordp)
+                break;
+
+            wordp += word_step;
+        }
+        if (dd)
+            *dp++ = (BDIGIT)dd;
+        assert(dp <= de);
+        while (dp < de)
+            *dp++ = 0;
+#undef PUSH_BITS
+    }
+
+    if (!(flags & INTEGER_PACK_2COMP)) {
+        sign = (flags & INTEGER_PACK_NEGATIVE) ? -1 : 1;
+    }
+    else {
+        if (nlp_bits) {
+            if ((flags & INTEGER_PACK_NEGATIVE) ||
+                (bdigits[num_bdigits-1] >> (BITSPERDIG - nlp_bits - 1))) {
+                bdigits[num_bdigits-1] |= BIGLO(BDIGMAX << (BITSPERDIG - nlp_bits));
+                sign = -1;
+            }
+            else {
+                sign = 1;
+            }
+        }
+        else {
+            if (flags & INTEGER_PACK_NEGATIVE) {
+                sign = bary_zero_p(bdigits, num_bdigits) ? -2 : -1;
+            }
+            else {
+                if (num_bdigits != 0 && BDIGIT_MSB(bdigits[num_bdigits-1]))
+                    sign = -1;
+                else
+                    sign = 1;
+            }
+        }
+        if (sign == -1 && num_bdigits != 0) {
+            bary_2comp(bdigits, num_bdigits);
+        }
+    }
+
+    return sign;
+}
+
+static void
+bary_unpack(BDIGIT *bdigits, size_t num_bdigits, const void *words, size_t numwords, size_t wordsize, size_t nails, int flags)
+{
+    size_t num_bdigits0;
+    int nlp_bits;
+    int sign;
+
+    validate_integer_pack_format(numwords, wordsize, nails, flags,
+            INTEGER_PACK_MSWORD_FIRST|
+            INTEGER_PACK_LSWORD_FIRST|
+            INTEGER_PACK_MSBYTE_FIRST|
+            INTEGER_PACK_LSBYTE_FIRST|
+            INTEGER_PACK_NATIVE_BYTE_ORDER|
+            INTEGER_PACK_2COMP|
+            INTEGER_PACK_FORCE_BIGNUM|
+            INTEGER_PACK_NEGATIVE|
+            INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION);
+
+    num_bdigits0 = integer_unpack_num_bdigits(numwords, wordsize, nails, &nlp_bits);
+
+    assert(num_bdigits0 <= num_bdigits);
+
+    sign = bary_unpack_internal(bdigits, num_bdigits0, words, numwords, wordsize, nails, flags, nlp_bits);
+
+    if (num_bdigits0 < num_bdigits) {
+        BDIGITS_ZERO(bdigits + num_bdigits0, num_bdigits - num_bdigits0);
+        if (sign == -2) {
+            bdigits[num_bdigits0] = 1;
+        }
+    }
+}
+
+static int
+bary_subb(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, int borrow)
+{
+    BDIGIT_DBL_SIGNED num;
+    size_t i;
+    size_t sn;
+
+    assert(xn <= zn);
+    assert(yn <= zn);
+
+    sn = xn < yn ? xn : yn;
+
+    num = borrow ? -1 : 0;
+    for (i = 0; i < sn; i++) {
+	num += (BDIGIT_DBL_SIGNED)xds[i] - yds[i];
+	zds[i] = BIGLO(num);
+	num = BIGDN(num);
+    }
+    if (yn <= xn) {
+        for (; i < xn; i++) {
+            if (num == 0) goto num_is_zero;
+            num += xds[i];
+            zds[i] = BIGLO(num);
+            num = BIGDN(num);
+        }
+    }
+    else {
+        for (; i < yn; i++) {
+            num -= yds[i];
+            zds[i] = BIGLO(num);
+            num = BIGDN(num);
+        }
+    }
+    if (num == 0) goto num_is_zero;
+    for (; i < zn; i++) {
+	zds[i] = BDIGMAX;
+    }
+    return 1;
+
+  num_is_zero:
+    if (xds == zds && xn == zn)
+        return 0;
+    for (; i < xn; i++) {
+	zds[i] = xds[i];
+    }
+    for (; i < zn; i++) {
+	zds[i] = 0;
+    }
+    return 0;
+}
+
+static int
+bary_sub(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
 {
-    NEWOBJ(big, struct RBignum);
-    OBJSETUP(big, klass, T_BIGNUM);
-    big->sign = sign?1:0;
-    big->len = len;
-    big->digits = ALLOC_N(BDIGIT, len);
+    return bary_subb(zds, zn, xds, xn, yds, yn, 0);
+}
+
+static int
+bary_sub_one(BDIGIT *zds, size_t zn)
+{
+    return bary_subb(zds, zn, zds, zn, NULL, 0, 1);
+}
 
+static int
+bary_addc(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, int carry)
+{
+    BDIGIT_DBL num;
+    size_t i;
+
+    assert(xn <= zn);
+    assert(yn <= zn);
+
+    if (xn > yn) {
+	const BDIGIT *tds;
+	tds = xds; xds = yds; yds = tds;
+	i = xn; xn = yn; yn = i;
+    }
+
+    num = carry ? 1 : 0;
+    for (i = 0; i < xn; i++) {
+	num += (BDIGIT_DBL)xds[i] + yds[i];
+	zds[i] = BIGLO(num);
+	num = BIGDN(num);
+    }
+    for (; i < yn; i++) {
+        if (num == 0) goto num_is_zero;
+	num += yds[i];
+	zds[i] = BIGLO(num);
+	num = BIGDN(num);
+    }
+    for (; i < zn; i++) {
+        if (num == 0) goto num_is_zero;
+	zds[i] = BIGLO(num);
+	num = BIGDN(num);
+    }
+    return num != 0;
+
+  num_is_zero:
+    if (yds == zds && yn == zn)
+        return 0;
+    for (; i < yn; i++) {
+	zds[i] = yds[i];
+    }
+    for (; i < zn; i++) {
+	zds[i] = 0;
+    }
+    return 0;
+}
+
+static int
+bary_add(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
+{
+    return bary_addc(zds, zn, xds, xn, yds, yn, 0);
+}
+
+static int
+bary_add_one(BDIGIT *ds, size_t n)
+{
+    size_t i;
+    for (i = 0; i < n; i++) {
+	ds[i] = BIGLO(ds[i]+1);
+        if (ds[i] != 0)
+            return 0;
+    }
+    return 1;
+}
+
+static void
+bary_mul_single(BDIGIT *zds, size_t zn, BDIGIT x, BDIGIT y)
+{
+    BDIGIT_DBL n;
+
+    assert(2 <= zn);
+
+    n = (BDIGIT_DBL)x * y;
+    bdigitdbl2bary(zds, 2, n);
+    BDIGITS_ZERO(zds + 2, zn - 2);
+}
+
+static int
+bary_muladd_1xN(BDIGIT *zds, size_t zn, BDIGIT x, const BDIGIT *yds, size_t yn)
+{
+    BDIGIT_DBL n;
+    BDIGIT_DBL dd;
+    size_t j;
+
+    assert(zn > yn);
+
+    if (x == 0)
+        return 0;
+    dd = x;
+    n = 0;
+    for (j = 0; j < yn; j++) {
+        BDIGIT_DBL ee = n + dd * yds[j];
+        if (ee) {
+            n = zds[j] + ee;
+            zds[j] = BIGLO(n);
+            n = BIGDN(n);
+        }
+        else {
+            n = 0;
+        }
+
+    }
+    for (; j < zn; j++) {
+        if (n == 0)
+            break;
+        n += zds[j];
+        zds[j] = BIGLO(n);
+        n = BIGDN(n);
+    }
+    return n != 0;
+}
+
+static BDIGIT_DBL_SIGNED
+bigdivrem_mulsub(BDIGIT *zds, size_t zn, BDIGIT x, const BDIGIT *yds, size_t yn)
+{
+    size_t i;
+    BDIGIT_DBL t2;
+    BDIGIT_DBL_SIGNED num;
+
+    assert(zn == yn + 1);
+
+    num = 0;
+    t2 = 0;
+    i = 0;
+
+    do {
+        BDIGIT_DBL ee;
+        t2 += (BDIGIT_DBL)yds[i] * x;
+        ee = num - BIGLO(t2);
+        num = (BDIGIT_DBL)zds[i] + ee;
+        if (ee) zds[i] = BIGLO(num);
+        num = BIGDN(num);
+        t2 = BIGDN(t2);
+    } while (++i < yn);
+    num += zds[i] - t2; /* borrow from high digit; don't update */
+    return num;
+}
+
+static int
+bary_mulsub_1xN(BDIGIT *zds, size_t zn, BDIGIT x, const BDIGIT *yds, size_t yn)
+{
+    BDIGIT_DBL_SIGNED num;
+
+    assert(zn == yn + 1);
+
+    num = bigdivrem_mulsub(zds, zn, x, yds, yn);
+    zds[yn] = BIGLO(num);
+    if (BIGDN(num))
+        return 1;
+    return 0;
+}
+
+static void
+bary_mul_normal(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
+{
+    size_t i;
+
+    assert(xn + yn <= zn);
+
+    BDIGITS_ZERO(zds, zn);
+    for (i = 0; i < xn; i++) {
+        bary_muladd_1xN(zds+i, zn-i, xds[i], yds, yn);
+    }
+}
+
+VALUE
+rb_big_mul_normal(VALUE x, VALUE y)
+{
+    size_t xn = BIGNUM_LEN(x), yn = BIGNUM_LEN(y), zn = xn + yn;
+    VALUE z = bignew(zn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
+    bary_mul_normal(BDIGITS(z), zn, BDIGITS(x), xn, BDIGITS(y), yn);
+    RB_GC_GUARD(x);
+    RB_GC_GUARD(y);
+    return z;
+}
+
+/* efficient squaring (2 times faster than normal multiplication)
+ * ref: Handbook of Applied Cryptography, Algorithm 14.16
+ *      http://www.cacr.math.uwaterloo.ca/hac/about/chap14.pdf
+ */
+static void
+bary_sq_fast(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn)
+{
+    size_t i, j;
+    BDIGIT_DBL c, v, w;
+    BDIGIT vl;
+    int vh;
+
+    assert(xn * 2 <= zn);
+
+    BDIGITS_ZERO(zds, zn);
+
+    if (xn == 0)
+        return;
+
+    for (i = 0; i < xn-1; i++) {
+	v = (BDIGIT_DBL)xds[i];
+	if (!v)
+            continue;
+	c = (BDIGIT_DBL)zds[i + i] + v * v;
+	zds[i + i] = BIGLO(c);
+	c = BIGDN(c);
+	v *= 2;
+        vl = BIGLO(v);
+        vh = (int)BIGDN(v);
+	for (j = i + 1; j < xn; j++) {
+	    w = (BDIGIT_DBL)xds[j];
+	    c += (BDIGIT_DBL)zds[i + j] + vl * w;
+	    zds[i + j] = BIGLO(c);
+	    c = BIGDN(c);
+	    if (vh)
+                c += w;
+	}
+	if (c) {
+	    c += (BDIGIT_DBL)zds[i + xn];
+	    zds[i + xn] = BIGLO(c);
+	    c = BIGDN(c);
+            if (c)
+                zds[i + xn + 1] += (BDIGIT)c;
+	}
+    }
+
+    /* i == xn-1 */
+    v = (BDIGIT_DBL)xds[i];
+    if (!v)
+        return;
+    c = (BDIGIT_DBL)zds[i + i] + v * v;
+    zds[i + i] = BIGLO(c);
+    c = BIGDN(c);
+    if (c) {
+        zds[i + xn] += BIGLO(c);
+    }
+}
+
+VALUE
+rb_big_sq_fast(VALUE x)
+{
+    size_t xn = BIGNUM_LEN(x), zn = 2 * xn;
+    VALUE z = bignew(zn, 1);
+    bary_sq_fast(BDIGITS(z), zn, BDIGITS(x), xn);
+    RB_GC_GUARD(x);
+    return z;
+}
+
+/* balancing multiplication by slicing larger argument */
+static void
+bary_mul_balance_with_mulfunc(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, BDIGIT *wds, size_t wn, mulfunc_t *mulfunc)
+{
+    VALUE work = 0;
+    size_t yn0 = yn;
+    size_t r, n;
+
+    assert(xn + yn <= zn);
+    assert(xn <= yn);
+    assert(!KARATSUBA_BALANCED(xn, yn) || !TOOM3_BALANCED(xn, yn));
+
+    BDIGITS_ZERO(zds, xn);
+
+    n = 0;
+    while (yn > 0) {
+        BDIGIT *tds;
+        size_t tn;
+	r = xn > yn ? yn : xn;
+        tn = xn + r;
+        if (2 * (xn + r) <= zn - n) {
+            tds = zds + n + xn + r;
+            mulfunc(tds, tn, xds, xn, yds + n, r, wds, wn);
+            BDIGITS_ZERO(zds + n + xn, r);
+            bary_add(zds + n, tn,
+                     zds + n, tn,
+                     tds, tn);
+        }
+        else {
+            if (wn < xn) {
+                wn = xn;
+                wds = ALLOCV_N(BDIGIT, work, wn);
+            }
+            tds = zds + n;
+            MEMCPY(wds, zds + n, BDIGIT, xn);
+            mulfunc(tds, tn, xds, xn, yds + n, r, wds+xn, wn-xn);
+            bary_add(zds + n, tn,
+                     zds + n, tn,
+                     wds, xn);
+        }
+	yn -= r;
+	n += r;
+    }
+    BDIGITS_ZERO(zds+xn+yn0, zn - (xn+yn0));
+
+    if (work)
+        ALLOCV_END(work);
+}
+
+VALUE
+rb_big_mul_balance(VALUE x, VALUE y)
+{
+    size_t xn = BIGNUM_LEN(x), yn = BIGNUM_LEN(y), zn = xn + yn;
+    VALUE z = bignew(zn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
+    bary_mul_balance_with_mulfunc(BDIGITS(z), zn, BDIGITS(x), xn, BDIGITS(y), yn, NULL, 0, bary_mul_toom3_start);
+    RB_GC_GUARD(x);
+    RB_GC_GUARD(y);
+    return z;
+}
+
+/* multiplication by karatsuba method */
+static void
+bary_mul_karatsuba(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, BDIGIT *wds, size_t wn)
+{
+    VALUE work = 0;
+
+    size_t n;
+    int sub_p, borrow, carry1, carry2, carry3;
+
+    int odd_y = 0;
+    int odd_xy = 0;
+    int sq;
+
+    const BDIGIT *xds0, *xds1, *yds0, *yds1;
+    BDIGIT *zds0, *zds1, *zds2, *zds3;
+
+    assert(xn + yn <= zn);
+    assert(xn <= yn);
+    assert(yn < 2 * xn);
+
+    sq = xds == yds && xn == yn;
+
+    if (yn & 1) {
+        odd_y = 1;
+        yn--;
+        if (yn < xn) {
+            odd_xy = 1;
+            xn--;
+        }
+    }
+
+    n = yn / 2;
+
+    assert(n < xn);
+
+    if (wn < n) {
+        /* This function itself needs only n BDIGITs for work area.
+         * However this function calls bary_mul_karatsuba and
+         * bary_mul_balance recursively.
+         * 2n BDIGITs are enough to avoid allocations in
+         * the recursively called functions.
+         */
+        wn = 2*n;
+        wds = ALLOCV_N(BDIGIT, work, wn);
+    }
+
+    /* Karatsuba algorithm:
+     *
+     * x = x0 + r*x1
+     * y = y0 + r*y1
+     * z = x*y
+     *   = (x0 + r*x1) * (y0 + r*y1)
+     *   = x0*y0 + r*(x1*y0 + x0*y1) + r*r*x1*y1
+     *   = x0*y0 + r*(x0*y0 + x1*y1 - (x1-x0)*(y1-y0)) + r*r*x1*y1
+     *   = x0*y0 + r*(x0*y0 + x1*y1 - (x0-x1)*(y0-y1)) + r*r*x1*y1
+     */
+
+    xds0 = xds;
+    xds1 = xds + n;
+    yds0 = yds;
+    yds1 = yds + n;
+    zds0 = zds;
+    zds1 = zds + n;
+    zds2 = zds + 2*n;
+    zds3 = zds + 3*n;
+
+    sub_p = 1;
+
+    /* zds0:? zds1:? zds2:? zds3:? wds:? */
+
+    if (bary_sub(zds0, n, xds, n, xds+n, xn-n)) {
+        bary_2comp(zds0, n);
+        sub_p = !sub_p;
+    }
+
+    /* zds0:|x1-x0| zds1:? zds2:? zds3:? wds:? */
+
+    if (sq) {
+        sub_p = 1;
+        bary_mul_karatsuba_start(zds1, 2*n, zds0, n, zds0, n, wds, wn);
+    }
+    else {
+        if (bary_sub(wds, n, yds, n, yds+n, n)) {
+            bary_2comp(wds, n);
+            sub_p = !sub_p;
+        }
+
+        /* zds0:|x1-x0| zds1:? zds2:? zds3:? wds:|y1-y0| */
+
+        bary_mul_karatsuba_start(zds1, 2*n, zds0, n, wds, n, wds+n, wn-n);
+    }
+
+    /* zds0:|x1-x0| zds1,zds2:|x1-x0|*|y1-y0| zds3:? wds:|y1-y0| */
+
+    borrow = 0;
+    if (sub_p) {
+        borrow = !bary_2comp(zds1, 2*n);
+    }
+    /* zds0:|x1-x0| zds1,zds2:-?|x1-x0|*|y1-y0| zds3:? wds:|y1-y0| */
+
+    MEMCPY(wds, zds1, BDIGIT, n);
+
+    /* zds0:|x1-x0| zds1,zds2:-?|x1-x0|*|y1-y0| zds3:? wds:lo(-?|x1-x0|*|y1-y0|) */
+
+    bary_mul_karatsuba_start(zds0, 2*n, xds0, n, yds0, n, wds+n, wn-n);
+
+    /* zds0,zds1:x0*y0 zds2:hi(-?|x1-x0|*|y1-y0|) zds3:? wds:lo(-?|x1-x0|*|y1-y0|) */
+
+    carry1 = bary_add(wds, n, wds, n, zds0, n);
+    carry1 = bary_addc(zds2, n, zds2, n, zds1, n, carry1);
+
+    /* zds0,zds1:x0*y0 zds2:hi(x0*y0-?|x1-x0|*|y1-y0|) zds3:? wds:lo(x0*y0-?|x1-x0|*|y1-y0|) */
+
+    carry2 = bary_add(zds1, n, zds1, n, wds, n);
+
+    /* zds0:lo(x0*y0) zds1:hi(x0*y0)+lo(x0*y0-?|x1-x0|*|y1-y0|) zds2:hi(x0*y0-?|x1-x0|*|y1-y0|) zds3:? wds:lo(x0*y0-?|x1-x0|*|y1-y0|) */
+
+    MEMCPY(wds, zds2, BDIGIT, n);
+
+    /* zds0:lo(x0*y0) zds1:hi(x0*y0)+lo(x0*y0-?|x1-x0|*|y1-y0|) zds2:_ zds3:? wds:hi(x0*y0-?|x1-x0|*|y1-y0|) */
+
+    bary_mul_karatsuba_start(zds2, zn-2*n, xds1, xn-n, yds1, n, wds+n, wn-n);
+
+    /* zds0:lo(x0*y0) zds1:hi(x0*y0)+lo(x0*y0-?|x1-x0|*|y1-y0|) zds2,zds3:x1*y1 wds:hi(x0*y0-?|x1-x0|*|y1-y0|) */
+
+    carry3 = bary_add(zds1, n, zds1, n, zds2, n);
+
+    /* zds0:lo(x0*y0) zds1:hi(x0*y0)+lo(x0*y0-?|x1-x0|*|y1-y0|)+lo(x1*y1) zds2,zds3:x1*y1 wds:hi(x0*y0-?|x1-x0|*|y1-y0|) */
+
+    carry3 = bary_addc(zds2, n, zds2, n, zds3, (4*n < zn ? n : zn-3*n), carry3);
+
+    /* zds0:lo(x0*y0) zds1:hi(x0*y0)+lo(x0*y0-?|x1-x0|*|y1-y0|)+lo(x1*y1) zds2,zds3:x1*y1+hi(x1*y1) wds:hi(x0*y0-?|x1-x0|*|y1-y0|) */
+
+    bary_add(zds2, zn-2*n, zds2, zn-2*n, wds, n);
+
+    /* zds0:lo(x0*y0) zds1:hi(x0*y0)+lo(x0*y0-?|x1-x0|*|y1-y0|)+lo(x1*y1) zds2,zds3:x1*y1+hi(x1*y1)+hi(x0*y0-?|x1-x0|*|y1-y0|) wds:_ */
+
+    if (carry2)
+        bary_add_one(zds2, zn-2*n);
+
+    if (carry1 + carry3 - borrow < 0)
+        bary_sub_one(zds3, zn-3*n);
+    else if (carry1 + carry3 - borrow > 0) {
+        BDIGIT c = carry1 + carry3 - borrow;
+        bary_add(zds3, zn-3*n, zds3, zn-3*n, &c, 1);
+    }
+
+    /*
+    if (SIZEOF_BDIGIT * zn <= 16) {
+        uint128_t z, x, y;
+        ssize_t i;
+        for (x = 0, i = xn-1; 0 <= i; i--) { x <<= SIZEOF_BDIGIT*CHAR_BIT; x |= xds[i]; }
+        for (y = 0, i = yn-1; 0 <= i; i--) { y <<= SIZEOF_BDIGIT*CHAR_BIT; y |= yds[i]; }
+        for (z = 0, i = zn-1; 0 <= i; i--) { z <<= SIZEOF_BDIGIT*CHAR_BIT; z |= zds[i]; }
+        assert(z == x * y);
+    }
+    */
+
+    if (odd_xy) {
+        bary_muladd_1xN(zds+yn, zn-yn, yds[yn], xds, xn);
+        bary_muladd_1xN(zds+xn, zn-xn, xds[xn], yds, yn+1);
+    }
+    else if (odd_y) {
+        bary_muladd_1xN(zds+yn, zn-yn, yds[yn], xds, xn);
+    }
+
+    if (work)
+        ALLOCV_END(work);
+}
+
+VALUE
+rb_big_mul_karatsuba(VALUE x, VALUE y)
+{
+    size_t xn = BIGNUM_LEN(x), yn = BIGNUM_LEN(y), zn = xn + yn;
+    VALUE z = bignew(zn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
+    if (!((xn <= yn && yn < 2) || KARATSUBA_BALANCED(xn, yn)))
+        rb_raise(rb_eArgError, "unexpected bignum length for karatsuba");
+    bary_mul_karatsuba(BDIGITS(z), zn, BDIGITS(x), xn, BDIGITS(y), yn, NULL, 0);
+    RB_GC_GUARD(x);
+    RB_GC_GUARD(y);
+    return z;
+}
+
+static void
+bary_mul_toom3(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, BDIGIT *wds, size_t wn)
+{
+    size_t n;
+    size_t wnc;
+    VALUE work = 0;
+
+    /* "p" stands for "positive".  Actually it means "non-negative", though. */
+    size_t x0n; const BDIGIT *x0ds;
+    size_t x1n; const BDIGIT *x1ds;
+    size_t x2n; const BDIGIT *x2ds;
+    size_t y0n; const BDIGIT *y0ds;
+    size_t y1n; const BDIGIT *y1ds;
+    size_t y2n; const BDIGIT *y2ds;
+
+    size_t u1n; BDIGIT *u1ds; int u1p;
+    size_t u2n; BDIGIT *u2ds; int u2p;
+    size_t u3n; BDIGIT *u3ds; int u3p;
+
+    size_t v1n; BDIGIT *v1ds; int v1p;
+    size_t v2n; BDIGIT *v2ds; int v2p;
+    size_t v3n; BDIGIT *v3ds; int v3p;
+
+    size_t t0n; BDIGIT *t0ds; int t0p;
+    size_t t1n; BDIGIT *t1ds; int t1p;
+    size_t t2n; BDIGIT *t2ds; int t2p;
+    size_t t3n; BDIGIT *t3ds; int t3p;
+    size_t t4n; BDIGIT *t4ds; int t4p;
+
+    size_t z0n; BDIGIT *z0ds;
+    size_t z1n; BDIGIT *z1ds; int z1p;
+    size_t z2n; BDIGIT *z2ds; int z2p;
+    size_t z3n; BDIGIT *z3ds; int z3p;
+    size_t z4n; BDIGIT *z4ds;
+
+    size_t zzn; BDIGIT *zzds;
+
+    int sq = xds == yds && xn == yn;
+
+    assert(xn <= yn);  /* assume y >= x */
+    assert(xn + yn <= zn);
+
+    n = (yn + 2) / 3;
+    assert(2*n < xn);
+
+    wnc = 0;
+
+    wnc += (u1n = n+1); /* BITSPERDIG*n+2 bits */
+    wnc += (u2n = n+1); /* BITSPERDIG*n+1 bits */
+    wnc += (u3n = n+1); /* BITSPERDIG*n+3 bits */
+    wnc += (v1n = n+1); /* BITSPERDIG*n+2 bits */
+    wnc += (v2n = n+1); /* BITSPERDIG*n+1 bits */
+    wnc += (v3n = n+1); /* BITSPERDIG*n+3 bits */
+
+    wnc += (t0n = 2*n); /* BITSPERDIG*2*n bits */
+    wnc += (t1n = 2*n+2); /* BITSPERDIG*2*n+4 bits but bary_mul needs u1n+v1n */
+    wnc += (t2n = 2*n+2); /* BITSPERDIG*2*n+2 bits but bary_mul needs u2n+v2n */
+    wnc += (t3n = 2*n+2); /* BITSPERDIG*2*n+6 bits but bary_mul needs u3n+v3n */
+    wnc += (t4n = 2*n); /* BITSPERDIG*2*n bits */
+
+    wnc += (z1n = 2*n+1); /* BITSPERDIG*2*n+5 bits */
+    wnc += (z2n = 2*n+1); /* BITSPERDIG*2*n+6 bits */
+    wnc += (z3n = 2*n+1); /* BITSPERDIG*2*n+8 bits */
+
+    if (wn < wnc) {
+        wn = wnc * 3 / 2; /* Allocate working memory for whole recursion at once. */
+        wds = ALLOCV_N(BDIGIT, work, wn);
+    }
+
+    u1ds = wds; wds += u1n;
+    u2ds = wds; wds += u2n;
+    u3ds = wds; wds += u3n;
+
+    v1ds = wds; wds += v1n;
+    v2ds = wds; wds += v2n;
+    v3ds = wds; wds += v3n;
+
+    t0ds = wds; wds += t0n;
+    t1ds = wds; wds += t1n;
+    t2ds = wds; wds += t2n;
+    t3ds = wds; wds += t3n;
+    t4ds = wds; wds += t4n;
+
+    z1ds = wds; wds += z1n;
+    z2ds = wds; wds += z2n;
+    z3ds = wds; wds += z3n;
+
+    wn -= wnc;
+
+    zzds = u1ds;
+    zzn = 6*n+1;
+
+    x0n = n;
+    x1n = n;
+    x2n = xn - 2*n;
+    x0ds = xds;
+    x1ds = xds + n;
+    x2ds = xds + 2*n;
+
+    if (sq) {
+        y0n = x0n;
+        y1n = x1n;
+        y2n = x2n;
+        y0ds = x0ds;
+        y1ds = x1ds;
+        y2ds = x2ds;
+    }
+    else {
+        y0n = n;
+        y1n = n;
+        y2n = yn - 2*n;
+        y0ds = yds;
+        y1ds = yds + n;
+        y2ds = yds + 2*n;
+    }
+
+    /*
+     * ref. http://en.wikipedia.org/wiki/Toom%E2%80%93Cook_multiplication
+     *
+     * x(b) = x0 * b^0 + x1 * b^1 + x2 * b^2
+     * y(b) = y0 * b^0 + y1 * b^1 + y2 * b^2
+     *
+     * z(b) = x(b) * y(b)
+     * z(b) = z0 * b^0 + z1 * b^1 + z2 * b^2 + z3 * b^3 + z4 * b^4
+     * where:
+     *   z0 = x0 * y0
+     *   z1 = x0 * y1 + x1 * y0
+     *   z2 = x0 * y2 + x1 * y1 + x2 * y0
+     *   z3 = x1 * y2 + x2 * y1
+     *   z4 = x2 * y2
+     *
+     * Toom3 method (a.k.a. Toom-Cook method):
+     * (Step1) calculating 5 points z(b0), z(b1), z(b2), z(b3), z(b4),
+     * where:
+     *   b0 = 0, b1 = 1, b2 = -1, b3 = -2, b4 = inf,
+     *   z(0)   = x(0)   * y(0)   = x0 * y0
+     *   z(1)   = x(1)   * y(1)   = (x0 + x1 + x2) * (y0 + y1 + y2)
+     *   z(-1)  = x(-1)  * y(-1)  = (x0 - x1 + x2) * (y0 - y1 + y2)
+     *   z(-2)  = x(-2)  * y(-2)  = (x0 - 2 * (x1 - 2 * x2)) * (y0 - 2 * (y1 - 2 * y2))
+     *   z(inf) = x(inf) * y(inf) = x2 * y2
+     *
+     * (Step2) interpolating z0, z1, z2, z3 and z4.
+     *
+     * (Step3) Substituting base value into b of the polynomial z(b),
+     */
+
+    /*
+     * [Step1] calculating 5 points z(b0), z(b1), z(b2), z(b3), z(b4)
+     */
+
+    /* u1 <- x0 + x2 */
+    bary_add(u1ds, u1n, x0ds, x0n, x2ds, x2n);
+    u1p = 1;
+
+    /* x(-1) : u2 <- u1 - x1 = x0 - x1 + x2 */
+    if (bary_sub(u2ds, u2n, u1ds, u1n, x1ds, x1n)) {
+        bary_2comp(u2ds, u2n);
+        u2p = 0;
+    }
+    else {
+        u2p = 1;
+    }
+
+    /* x(1) : u1 <- u1 + x1 = x0 + x1 + x2 */
+    bary_add(u1ds, u1n, u1ds, u1n, x1ds, x1n);
+
+    /* x(-2) : u3 <- 2 * (u2 + x2) - x0 = x0 - 2 * (x1 - 2 * x2) */
+    u3p = 1;
+    if (u2p) {
+        bary_add(u3ds, u3n, u2ds, u2n, x2ds, x2n);
+    }
+    else if (bary_sub(u3ds, u3n, x2ds, x2n, u2ds, u2n)) {
+        bary_2comp(u3ds, u3n);
+        u3p = 0;
+    }
+    bary_small_lshift(u3ds, u3ds, u3n, 1);
+    if (!u3p) {
+        bary_add(u3ds, u3n, u3ds, u3n, x0ds, x0n);
+    }
+    else if (bary_sub(u3ds, u3n, u3ds, u3n, x0ds, x0n)) {
+        bary_2comp(u3ds, u3n);
+        u3p = 0;
+    }
+
+    if (sq) {
+        v1n = u1n; v1ds = u1ds; v1p = u1p;
+        v2n = u2n; v2ds = u2ds; v2p = u2p;
+        v3n = u3n; v3ds = u3ds; v3p = u3p;
+    }
+    else {
+	/* v1 <- y0 + y2 */
+        bary_add(v1ds, v1n, y0ds, y0n, y2ds, y2n);
+        v1p = 1;
+
+	/* y(-1) : v2 <- v1 - y1 = y0 - y1 + y2 */
+        v2p = 1;
+        if (bary_sub(v2ds, v2n, v1ds, v1n, y1ds, y1n)) {
+            bary_2comp(v2ds, v2n);
+            v2p = 0;
+        }
+
+	/* y(1) : v1 <- v1 + y1 = y0 + y1 + y2 */
+        bary_add(v1ds, v1n, v1ds, v1n, y1ds, y1n);
+
+	/* y(-2) : v3 <- 2 * (v2 + y2) - y0 = y0 - 2 * (y1 - 2 * y2) */
+        v3p = 1;
+        if (v2p) {
+            bary_add(v3ds, v3n, v2ds, v2n, y2ds, y2n);
+        }
+        else if (bary_sub(v3ds, v3n, y2ds, y2n, v2ds, v2n)) {
+            bary_2comp(v3ds, v3n);
+            v3p = 0;
+        }
+        bary_small_lshift(v3ds, v3ds, v3n, 1);
+        if (!v3p) {
+            bary_add(v3ds, v3n, v3ds, v3n, y0ds, y0n);
+        }
+        else if (bary_sub(v3ds, v3n, v3ds, v3n, y0ds, y0n)) {
+            bary_2comp(v3ds, v3n);
+            v3p = 0;
+        }
+    }
+
+    /* z(0) : t0 <- x0 * y0 */
+    bary_mul_toom3_start(t0ds, t0n, x0ds, x0n, y0ds, y0n, wds, wn);
+    t0p = 1;
+
+    /* z(1) : t1 <- u1 * v1 */
+    bary_mul_toom3_start(t1ds, t1n, u1ds, u1n, v1ds, v1n, wds, wn);
+    t1p = u1p == v1p;
+    assert(t1ds[t1n-1] == 0);
+    t1n--;
+
+    /* z(-1) : t2 <- u2 * v2 */
+    bary_mul_toom3_start(t2ds, t2n, u2ds, u2n, v2ds, v2n, wds, wn);
+    t2p = u2p == v2p;
+    assert(t2ds[t2n-1] == 0);
+    t2n--;
+
+    /* z(-2) : t3 <- u3 * v3 */
+    bary_mul_toom3_start(t3ds, t3n, u3ds, u3n, v3ds, v3n, wds, wn);
+    t3p = u3p == v3p;
+    assert(t3ds[t3n-1] == 0);
+    t3n--;
+
+    /* z(inf) : t4 <- x2 * y2 */
+    bary_mul_toom3_start(t4ds, t4n, x2ds, x2n, y2ds, y2n, wds, wn);
+    t4p = 1;
+
+    /*
+     * [Step2] interpolating z0, z1, z2, z3 and z4.
+     */
+
+    /* z0 <- z(0) == t0 */
+    z0n = t0n; z0ds = t0ds;
+
+    /* z4 <- z(inf) == t4 */
+    z4n = t4n; z4ds = t4ds;
+
+    /* z3 <- (z(-2) - z(1)) / 3 == (t3 - t1) / 3 */
+    if (t3p == t1p) {
+        z3p = t3p;
+        if (bary_sub(z3ds, z3n, t3ds, t3n, t1ds, t1n)) {
+            bary_2comp(z3ds, z3n);
+            z3p = !z3p;
+        }
+    }
+    else {
+        z3p = t3p;
+        bary_add(z3ds, z3n, t3ds, t3n, t1ds, t1n);
+    }
+    bigdivrem_single(z3ds, z3ds, z3n, 3);
+
+    /* z1 <- (z(1) - z(-1)) / 2 == (t1 - t2) / 2 */
+    if (t1p == t2p) {
+        z1p = t1p;
+        if (bary_sub(z1ds, z1n, t1ds, t1n, t2ds, t2n)) {
+            bary_2comp(z1ds, z1n);
+            z1p = !z1p;
+        }
+    }
+    else {
+        z1p = t1p;
+        bary_add(z1ds, z1n, t1ds, t1n, t2ds, t2n);
+    }
+    bary_small_rshift(z1ds, z1ds, z1n, 1, 0);
+
+    /* z2 <- z(-1) - z(0) == t2 - t0 */
+    if (t2p == t0p) {
+        z2p = t2p;
+        if (bary_sub(z2ds, z2n, t2ds, t2n, t0ds, t0n)) {
+            bary_2comp(z2ds, z2n);
+            z2p = !z2p;
+        }
+    }
+    else {
+        z2p = t2p;
+        bary_add(z2ds, z2n, t2ds, t2n, t0ds, t0n);
+    }
+
+    /* z3 <- (z2 - z3) / 2 + 2 * z(inf) == (z2 - z3) / 2 + 2 * t4 */
+    if (z2p == z3p) {
+        z3p = z2p;
+        if (bary_sub(z3ds, z3n, z2ds, z2n, z3ds, z3n)) {
+            bary_2comp(z3ds, z3n);
+            z3p = !z3p;
+        }
+    }
+    else {
+        z3p = z2p;
+        bary_add(z3ds, z3n, z2ds, z2n, z3ds, z3n);
+    }
+    bary_small_rshift(z3ds, z3ds, z3n, 1, 0);
+    if (z3p == t4p) {
+        bary_muladd_1xN(z3ds, z3n, 2, t4ds, t4n);
+    }
+    else {
+        if (bary_mulsub_1xN(z3ds, z3n, 2, t4ds, t4n)) {
+            bary_2comp(z3ds, z3n);
+            z3p = !z3p;
+        }
+    }
+
+    /* z2 <- z2 + z1 - z(inf) == z2 + z1 - t4 */
+    if (z2p == z1p) {
+        bary_add(z2ds, z2n, z2ds, z2n, z1ds, z1n);
+    }
+    else {
+        if (bary_sub(z2ds, z2n, z2ds, z2n, z1ds, z1n)) {
+            bary_2comp(z2ds, z2n);
+            z2p = !z2p;
+        }
+    }
+
+    if (z2p == t4p) {
+        if (bary_sub(z2ds, z2n, z2ds, z2n, t4ds, t4n)) {
+            bary_2comp(z2ds, z2n);
+            z2p = !z2p;
+        }
+    }
+    else {
+        bary_add(z2ds, z2n, z2ds, z2n, t4ds, t4n);
+    }
+
+    /* z1 <- z1 - z3 */
+    if (z1p == z3p) {
+        if (bary_sub(z1ds, z1n, z1ds, z1n, z3ds, z3n)) {
+            bary_2comp(z1ds, z1n);
+            z1p = !z1p;
+        }
+    }
+    else {
+        bary_add(z1ds, z1n, z1ds, z1n, z3ds, z3n);
+    }
+
+    /*
+     * [Step3] Substituting base value into b of the polynomial z(b),
+     */
+
+    MEMCPY(zzds, z0ds, BDIGIT, z0n);
+    BDIGITS_ZERO(zzds + z0n, 4*n - z0n);
+    MEMCPY(zzds + 4*n, z4ds, BDIGIT, z4n);
+    BDIGITS_ZERO(zzds + 4*n + z4n, zzn - (4*n + z4n));
+    if (z1p)
+        bary_add(zzds +   n, zzn -   n, zzds +   n, zzn -   n, z1ds, z1n);
+    else
+        bary_sub(zzds +   n, zzn -   n, zzds +   n, zzn -   n, z1ds, z1n);
+    if (z2p)
+        bary_add(zzds + 2*n, zzn - 2*n, zzds + 2*n, zzn - 2*n, z2ds, z2n);
+    else
+        bary_sub(zzds + 2*n, zzn - 2*n, zzds + 2*n, zzn - 2*n, z2ds, z2n);
+    if (z3p)
+        bary_add(zzds + 3*n, zzn - 3*n, zzds + 3*n, zzn - 3*n, z3ds, z3n);
+    else
+        bary_sub(zzds + 3*n, zzn - 3*n, zzds + 3*n, zzn - 3*n, z3ds, z3n);
+
+    BARY_TRUNC(zzds, zzn);
+    MEMCPY(zds, zzds, BDIGIT, zzn);
+    BDIGITS_ZERO(zds + zzn, zn - zzn);
+
+    if (work)
+        ALLOCV_END(work);
+}
+
+VALUE
+rb_big_mul_toom3(VALUE x, VALUE y)
+{
+    size_t xn = BIGNUM_LEN(x), yn = BIGNUM_LEN(y), zn = xn + yn;
+    VALUE z = bignew(zn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
+    if (xn > yn || yn < 3 || !TOOM3_BALANCED(xn,yn))
+        rb_raise(rb_eArgError, "unexpected bignum length for toom3");
+    bary_mul_toom3(BDIGITS(z), zn, BDIGITS(x), xn, BDIGITS(y), yn, NULL, 0);
+    RB_GC_GUARD(x);
+    RB_GC_GUARD(y);
+    return z;
+}
+
+#ifdef USE_GMP
+static void
+bary_mul_gmp(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
+{
+    const size_t nails = (sizeof(BDIGIT)-SIZEOF_BDIGIT)*CHAR_BIT;
+    mpz_t x, y, z;
+    size_t count;
+
+    assert(xn + yn <= zn);
+
+    mpz_init(x);
+    mpz_init(y);
+    mpz_init(z);
+    mpz_import(x, xn, -1, sizeof(BDIGIT), 0, nails, xds);
+    if (xds == yds && xn == yn) {
+        mpz_mul(z, x, x);
+    }
+    else {
+        mpz_import(y, yn, -1, sizeof(BDIGIT), 0, nails, yds);
+        mpz_mul(z, x, y);
+    }
+    mpz_export(zds, &count, -1, sizeof(BDIGIT), 0, nails, z);
+    BDIGITS_ZERO(zds+count, zn-count);
+    mpz_clear(x);
+    mpz_clear(y);
+    mpz_clear(z);
+}
+
+VALUE
+rb_big_mul_gmp(VALUE x, VALUE y)
+{
+    size_t xn = BIGNUM_LEN(x), yn = BIGNUM_LEN(y), zn = xn + yn;
+    VALUE z = bignew(zn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
+    bary_mul_gmp(BDIGITS(z), zn, BDIGITS(x), xn, BDIGITS(y), yn);
+    RB_GC_GUARD(x);
+    RB_GC_GUARD(y);
+    return z;
+}
+#endif
+
+static void
+bary_short_mul(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
+{
+    assert(xn + yn <= zn);
+
+    if (xn == 1 && yn == 1) {
+        bary_mul_single(zds, zn, xds[0], yds[0]);
+    }
+    else {
+        bary_mul_normal(zds, zn, xds, xn, yds, yn);
+        rb_thread_check_ints();
+    }
+}
+
+/* determine whether a bignum is sparse or not by random sampling */
+static inline int
+bary_sparse_p(const BDIGIT *ds, size_t n)
+{
+    long c = 0;
+
+    if (          ds[rb_genrand_ulong_limited(n / 2) + n / 4]) c++;
+    if (c <= 1 && ds[rb_genrand_ulong_limited(n / 2) + n / 4]) c++;
+    if (c <= 1 && ds[rb_genrand_ulong_limited(n / 2) + n / 4]) c++;
+
+    return (c <= 1) ? 1 : 0;
+}
+
+static int
+bary_mul_precheck(BDIGIT **zdsp, size_t *znp, const BDIGIT **xdsp, size_t *xnp, const BDIGIT **ydsp, size_t *ynp)
+{
+    size_t nlsz; /* number of least significant zero BDIGITs */
+
+    BDIGIT *zds = *zdsp;
+    size_t zn = *znp;
+    const BDIGIT *xds = *xdsp;
+    size_t xn = *xnp;
+    const BDIGIT *yds = *ydsp;
+    size_t yn = *ynp;
+
+    assert(xn + yn <= zn);
+
+    nlsz = 0;
+
+    while (0 < xn) {
+        if (xds[xn-1] == 0) {
+            xn--;
+        }
+        else {
+            do {
+                if (xds[0] != 0)
+                    break;
+                xds++;
+                xn--;
+                nlsz++;
+            } while (0 < xn);
+            break;
+        }
+    }
+
+    while (0 < yn) {
+        if (yds[yn-1] == 0) {
+            yn--;
+        }
+        else {
+            do {
+                if (yds[0] != 0)
+                    break;
+                yds++;
+                yn--;
+                nlsz++;
+            } while (0 < yn);
+            break;
+        }
+    }
+
+    if (nlsz) {
+        BDIGITS_ZERO(zds, nlsz);
+        zds += nlsz;
+        zn -= nlsz;
+    }
+
+    /* make sure that y is longer than x */
+    if (xn > yn) {
+        const BDIGIT *tds;
+        size_t tn;
+	tds = xds; xds = yds; yds = tds;
+	tn = xn; xn = yn; yn = tn;
+    }
+    assert(xn <= yn);
+
+    if (xn <= 1) {
+        if (xn == 0) {
+            BDIGITS_ZERO(zds, zn);
+            return 1;
+        }
+
+        if (xds[0] == 1) {
+            MEMCPY(zds, yds, BDIGIT, yn);
+            BDIGITS_ZERO(zds+yn, zn-yn);
+            return 1;
+        }
+        if (POW2_P(xds[0])) {
+            zds[yn] = bary_small_lshift(zds, yds, yn, bit_length(xds[0])-1);
+            BDIGITS_ZERO(zds+yn+1, zn-yn-1);
+            return 1;
+        }
+        if (yn == 1 && yds[0] == 1) {
+            zds[0] = xds[0];
+            BDIGITS_ZERO(zds+1, zn-1);
+            return 1;
+        }
+        bary_mul_normal(zds, zn, xds, xn, yds, yn);
+        return 1;
+    }
+
+    *zdsp = zds;
+    *znp = zn;
+    *xdsp = xds;
+    *xnp = xn;
+    *ydsp = yds;
+    *ynp = yn;
+
+    return 0;
+}
+
+static void
+bary_mul_karatsuba_branch(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, BDIGIT *wds, size_t wn)
+{
+    /* normal multiplication when x is small */
+    if (xn < KARATSUBA_MUL_DIGITS) {
+      normal:
+        if (xds == yds && xn == yn)
+            bary_sq_fast(zds, zn, xds, xn);
+        else
+            bary_short_mul(zds, zn, xds, xn, yds, yn);
+        return;
+    }
+
+    /* normal multiplication when x or y is a sparse bignum */
+    if (bary_sparse_p(xds, xn)) goto normal;
+    if (bary_sparse_p(yds, yn)) {
+        bary_short_mul(zds, zn, yds, yn, xds, xn);
+        return;
+    }
+
+    /* balance multiplication by slicing y when x is much smaller than y */
+    if (!KARATSUBA_BALANCED(xn, yn)) {
+        bary_mul_balance_with_mulfunc(zds, zn, xds, xn, yds, yn, wds, wn, bary_mul_karatsuba_start);
+        return;
+    }
+
+    /* multiplication by karatsuba method */
+    bary_mul_karatsuba(zds, zn, xds, xn, yds, yn, wds, wn);
+}
+
+static void
+bary_mul_karatsuba_start(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, BDIGIT *wds, size_t wn)
+{
+    if (bary_mul_precheck(&zds, &zn, &xds, &xn, &yds, &yn))
+        return;
+
+    bary_mul_karatsuba_branch(zds, zn, xds, xn, yds, yn, wds, wn);
+}
+
+static void
+bary_mul_toom3_branch(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, BDIGIT *wds, size_t wn)
+{
+    if (xn < TOOM3_MUL_DIGITS) {
+        bary_mul_karatsuba_branch(zds, zn, xds, xn, yds, yn, wds, wn);
+        return;
+    }
+
+    if (!TOOM3_BALANCED(xn, yn)) {
+        bary_mul_balance_with_mulfunc(zds, zn, xds, xn, yds, yn, wds, wn, bary_mul_toom3_start);
+        return;
+    }
+
+    bary_mul_toom3(zds, zn, xds, xn, yds, yn, wds, wn);
+}
+
+static void
+bary_mul_toom3_start(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn, BDIGIT *wds, size_t wn)
+{
+    if (bary_mul_precheck(&zds, &zn, &xds, &xn, &yds, &yn))
+        return;
+
+    bary_mul_toom3_branch(zds, zn, xds, xn, yds, yn, wds, wn);
+}
+
+static void
+bary_mul(BDIGIT *zds, size_t zn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
+{
+#ifdef USE_GMP
+    const size_t naive_threshold = GMP_MUL_DIGITS;
+#else
+    const size_t naive_threshold = KARATSUBA_MUL_DIGITS;
+#endif
+    if (xn <= yn) {
+        if (xn < naive_threshold) {
+            if (xds == yds && xn == yn)
+                bary_sq_fast(zds, zn, xds, xn);
+            else
+                bary_short_mul(zds, zn, xds, xn, yds, yn);
+            return;
+        }
+    }
+    else {
+        if (yn < naive_threshold) {
+            bary_short_mul(zds, zn, yds, yn, xds, xn);
+            return;
+        }
+    }
+
+#ifdef USE_GMP
+    bary_mul_gmp(zds, zn, xds, xn, yds, yn);
+#else
+    bary_mul_toom3_start(zds, zn, xds, xn, yds, yn, NULL, 0);
+#endif
+}
+
+struct big_div_struct {
+    size_t yn, zn;
+    BDIGIT *yds, *zds;
+    volatile VALUE stop;
+};
+
+static void *
+bigdivrem1(void *ptr)
+{
+    struct big_div_struct *bds = (struct big_div_struct*)ptr;
+    size_t yn = bds->yn;
+    size_t zn = bds->zn;
+    BDIGIT *yds = bds->yds, *zds = bds->zds;
+    BDIGIT_DBL_SIGNED num;
+    BDIGIT q;
+
+    do {
+	if (bds->stop) {
+	    bds->zn = zn;
+	    return 0;
+        }
+	if (zds[zn-1] == yds[yn-1]) q = BDIGMAX;
+	else q = (BDIGIT)((BIGUP(zds[zn-1]) + zds[zn-2])/yds[yn-1]);
+	if (q) {
+            num = bigdivrem_mulsub(zds+zn-(yn+1), yn+1,
+                                   q,
+                                   yds, yn);
+	    while (num) { /* "add back" required */
+		q--;
+                num = bary_add(zds+zn-(yn+1), yn,
+                               zds+zn-(yn+1), yn,
+                               yds, yn);
+                num--;
+	    }
+	}
+        zn--;
+	zds[zn] = q;
+    } while (zn > yn);
+    return 0;
+}
+
+static void
+rb_big_stop(void *ptr)
+{
+    struct big_div_struct *bds = ptr;
+    bds->stop = Qtrue;
+}
+
+static BDIGIT
+bigdivrem_single1(BDIGIT *qds, const BDIGIT *xds, size_t xn, BDIGIT x_higher_bdigit, BDIGIT y)
+{
+    assert(0 < xn);
+    assert(x_higher_bdigit < y);
+    if (POW2_P(y)) {
+        BDIGIT r;
+        r = xds[0] & (y-1);
+        bary_small_rshift(qds, xds, xn, bit_length(y)-1, x_higher_bdigit);
+        return r;
+    }
+    else {
+        size_t i;
+        BDIGIT_DBL t2;
+        t2 = x_higher_bdigit;
+        i = xn;
+        while (i--) {
+            t2 = BIGUP(t2) + xds[i];
+            qds[i] = (BDIGIT)(t2 / y);
+            t2 %= y;
+        }
+        return (BDIGIT)t2;
+    }
+}
+
+static BDIGIT
+bigdivrem_single(BDIGIT *qds, const BDIGIT *xds, size_t xn, BDIGIT y)
+{
+    return bigdivrem_single1(qds, xds, xn, 0, y);
+}
+
+static void
+bigdivrem_restoring(BDIGIT *zds, size_t zn, BDIGIT *yds, size_t yn)
+{
+    struct big_div_struct bds;
+    size_t ynzero;
+
+    assert(yn < zn);
+    assert(BDIGIT_MSB(yds[yn-1]));
+    assert(zds[zn-1] < yds[yn-1]);
+
+    for (ynzero = 0; !yds[ynzero]; ynzero++);
+
+    if (ynzero+1 == yn) {
+        BDIGIT r;
+        r = bigdivrem_single1(zds+yn, zds+ynzero, zn-yn, zds[zn-1], yds[ynzero]);
+        zds[ynzero] = r;
+        return;
+    }
+
+    bds.yn = yn - ynzero;
+    bds.zds = zds + ynzero;
+    bds.yds = yds + ynzero;
+    bds.stop = Qfalse;
+    bds.zn = zn - ynzero;
+    if (bds.zn > 10000 || bds.yn > 10000) {
+      retry:
+	bds.stop = Qfalse;
+	rb_thread_call_without_gvl(bigdivrem1, &bds, rb_big_stop, &bds);
+
+	if (bds.stop == Qtrue) {
+	    /* execute trap handler, but exception was not raised. */
+	    goto retry;
+	}
+    }
+    else {
+	bigdivrem1(&bds);
+    }
+}
+
+static void
+bary_divmod_normal(BDIGIT *qds, size_t qn, BDIGIT *rds, size_t rn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
+{
+    int shift;
+    BDIGIT *zds, *yyds;
+    size_t zn;
+    VALUE tmpyz = 0;
+
+    assert(yn < xn || (xn == yn && yds[yn - 1] <= xds[xn - 1]));
+    assert(qds ? (xn - yn + 1) <= qn : 1);
+    assert(rds ? yn <= rn : 1);
+
+    zn = xn + BIGDIVREM_EXTRA_WORDS;
+
+    shift = nlz(yds[yn-1]);
+    if (shift) {
+        int alloc_y = !rds;
+        int alloc_z = !qds || qn < zn;
+        if (alloc_y && alloc_z) {
+            yyds = ALLOCV_N(BDIGIT, tmpyz, yn+zn);
+            zds = yyds + yn;
+        }
+        else {
+            yyds = alloc_y ? ALLOCV_N(BDIGIT, tmpyz, yn) : rds;
+            zds = alloc_z ? ALLOCV_N(BDIGIT, tmpyz, zn) : qds;
+        }
+        zds[xn] = bary_small_lshift(zds, xds, xn, shift);
+        bary_small_lshift(yyds, yds, yn, shift);
+    }
+    else {
+        if (qds && zn <= qn)
+            zds = qds;
+        else
+            zds = ALLOCV_N(BDIGIT, tmpyz, zn);
+        MEMCPY(zds, xds, BDIGIT, xn);
+        zds[xn] = 0;
+        /* bigdivrem_restoring will not modify y.
+         * So use yds directly.  */
+        yyds = (BDIGIT *)yds;
+    }
+
+    bigdivrem_restoring(zds, zn, yyds, yn);
+
+    if (rds) {
+        if (shift)
+            bary_small_rshift(rds, zds, yn, shift, 0);
+        else
+            MEMCPY(rds, zds, BDIGIT, yn);
+        BDIGITS_ZERO(rds+yn, rn-yn);
+    }
+
+    if (qds) {
+        size_t j = zn - yn;
+        MEMMOVE(qds, zds+yn, BDIGIT, j);
+        BDIGITS_ZERO(qds+j, qn-j);
+    }
+
+    if (tmpyz)
+        ALLOCV_END(tmpyz);
+}
+
+VALUE
+rb_big_divrem_normal(VALUE x, VALUE y)
+{
+    size_t xn = BIGNUM_LEN(x), yn = BIGNUM_LEN(y), qn, rn;
+    BDIGIT *xds = BDIGITS(x), *yds = BDIGITS(y), *qds, *rds;
+    VALUE q, r;
+
+    BARY_TRUNC(yds, yn);
+    if (yn == 0)
+        rb_num_zerodiv();
+    BARY_TRUNC(xds, xn);
+
+    if (xn < yn || (xn == yn && xds[xn - 1] < yds[yn - 1]))
+        return rb_assoc_new(LONG2FIX(0), x);
+
+    qn = xn + BIGDIVREM_EXTRA_WORDS;
+    q = bignew(qn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
+    qds = BDIGITS(q);
+
+    rn = yn;
+    r = bignew(rn, BIGNUM_SIGN(x));
+    rds = BDIGITS(r);
+
+    bary_divmod_normal(qds, qn, rds, rn, xds, xn, yds, yn);
+
+    bigtrunc(q);
+    bigtrunc(r);
+
+    RB_GC_GUARD(x);
+    RB_GC_GUARD(y);
+
+    return rb_assoc_new(q, r);
+}
+
+#ifdef USE_GMP
+static void
+bary_divmod_gmp(BDIGIT *qds, size_t qn, BDIGIT *rds, size_t rn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
+{
+    const size_t nails = (sizeof(BDIGIT)-SIZEOF_BDIGIT)*CHAR_BIT;
+    mpz_t x, y, q, r;
+    size_t count;
+
+    assert(yn < xn || (xn == yn && yds[yn - 1] <= xds[xn - 1]));
+    assert(qds ? (xn - yn + 1) <= qn : 1);
+    assert(rds ? yn <= rn : 1);
+    assert(qds || rds);
+
+    mpz_init(x);
+    mpz_init(y);
+    if (qds) mpz_init(q);
+    if (rds) mpz_init(r);
+
+    mpz_import(x, xn, -1, sizeof(BDIGIT), 0, nails, xds);
+    mpz_import(y, yn, -1, sizeof(BDIGIT), 0, nails, yds);
+
+    if (!rds) {
+        mpz_fdiv_q(q, x, y);
+    }
+    else if (!qds) {
+        mpz_fdiv_r(r, x, y);
+    }
+    else {
+        mpz_fdiv_qr(q, r, x, y);
+    }
+
+    mpz_clear(x);
+    mpz_clear(y);
+
+    if (qds) {
+        mpz_export(qds, &count, -1, sizeof(BDIGIT), 0, nails, q);
+        BDIGITS_ZERO(qds+count, qn-count);
+        mpz_clear(q);
+    }
+
+    if (rds) {
+        mpz_export(rds, &count, -1, sizeof(BDIGIT), 0, nails, r);
+        BDIGITS_ZERO(rds+count, rn-count);
+        mpz_clear(r);
+    }
+}
+
+VALUE
+rb_big_divrem_gmp(VALUE x, VALUE y)
+{
+    size_t xn = BIGNUM_LEN(x), yn = BIGNUM_LEN(y), qn, rn;
+    BDIGIT *xds = BDIGITS(x), *yds = BDIGITS(y), *qds, *rds;
+    VALUE q, r;
+
+    BARY_TRUNC(yds, yn);
+    if (yn == 0)
+        rb_num_zerodiv();
+    BARY_TRUNC(xds, xn);
+
+    if (xn < yn || (xn == yn && xds[xn - 1] < yds[yn - 1]))
+        return rb_assoc_new(LONG2FIX(0), x);
+
+    qn = xn - yn + 1;
+    q = bignew(qn, BIGNUM_SIGN(x)==BIGNUM_SIGN(y));
+    qds = BDIGITS(q);
+
+    rn = yn;
+    r = bignew(rn, BIGNUM_SIGN(x));
+    rds = BDIGITS(r);
+
+    bary_divmod_gmp(qds, qn, rds, rn, xds, xn, yds, yn);
+
+    bigtrunc(q);
+    bigtrunc(r);
+
+    RB_GC_GUARD(x);
+    RB_GC_GUARD(y);
+
+    return rb_assoc_new(q, r);
+}
+#endif
+
+static void
+bary_divmod_branch(BDIGIT *qds, size_t qn, BDIGIT *rds, size_t rn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
+{
+#ifdef USE_GMP
+    if (GMP_DIV_DIGITS < xn) {
+        bary_divmod_gmp(qds, qn, rds, rn, xds, xn, yds, yn);
+        return;
+    }
+#endif
+    bary_divmod_normal(qds, qn, rds, rn, xds, xn, yds, yn);
+}
+
+static void
+bary_divmod(BDIGIT *qds, size_t qn, BDIGIT *rds, size_t rn, const BDIGIT *xds, size_t xn, const BDIGIT *yds, size_t yn)
+{
+    assert(xn <= qn);
+    assert(yn <= rn);
+
+    BARY_TRUNC(yds, yn);
+    if (yn == 0)
+        rb_num_zerodiv();
+
+    BARY_TRUNC(xds, xn);
+    if (xn == 0) {
+        BDIGITS_ZERO(qds, qn);
+        BDIGITS_ZERO(rds, rn);
+        return;
+    }
+
+    if (xn < yn || (xn == yn && xds[xn - 1] < yds[yn - 1])) {
+        MEMCPY(rds, xds, BDIGIT, xn);
+        BDIGITS_ZERO(rds+xn, rn-xn);
+        BDIGITS_ZERO(qds, qn);
+    }
+    else if (yn == 1) {
+        MEMCPY(qds, xds, BDIGIT, xn);
+        BDIGITS_ZERO(qds+xn, qn-xn);
+        rds[0] = bigdivrem_single(qds, xds, xn, yds[0]);
+        BDIGITS_ZERO(rds+1, rn-1);
+    }
+    else if (xn == 2 && yn == 2) {
+        BDIGIT_DBL x = bary2bdigitdbl(xds, 2);
+        BDIGIT_DBL y = bary2bdigitdbl(yds, 2);
+        BDIGIT_DBL q = x / y;
+        BDIGIT_DBL r = x % y;
+        qds[0] = BIGLO(q);
+        qds[1] = BIGLO(BIGDN(q));
+        BDIGITS_ZERO(qds+2, qn-2);
+        rds[0] = BIGLO(r);
+        rds[1] = BIGLO(BIGDN(r));
+        BDIGITS_ZERO(rds+2, rn-2);
+    }
+    else {
+        bary_divmod_branch(qds, qn, rds, rn, xds, xn, yds, yn);
+    }
+}
+
+
+#define BIGNUM_DEBUG 0
+#if BIGNUM_DEBUG
+#define ON_DEBUG(x) do { x; } while (0)
+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(", len=%"PRIuSIZE, BIGNUM_LEN(x));
+    puts("");
+}
+
+static VALUE
+rb_big_dump(VALUE x)
+{
+    dump_bignum(x);
+    return x;
+}
+#else
+#define ON_DEBUG(x)
+#endif
+
+static int
+bigzero_p(VALUE x)
+{
+    return bary_zero_p(BDIGITS(x), BIGNUM_LEN(x));
+}
+
+int
+rb_bigzero_p(VALUE x)
+{
+    return BIGZEROP(x);
+}
+
+int
+rb_cmpint(VALUE val, VALUE a, VALUE b)
+{
+    if (NIL_P(val)) {
+	rb_cmperr(a, b);
+    }
+    if (FIXNUM_P(val)) {
+        long l = FIX2LONG(val);
+        if (l > 0) return 1;
+        if (l < 0) return -1;
+        return 0;
+    }
+    if (RB_BIGNUM_TYPE_P(val)) {
+	if (BIGZEROP(val)) return 0;
+	if (BIGNUM_SIGN(val)) return 1;
+	return -1;
+    }
+    if (RTEST(rb_funcall(val, '>', 1, INT2FIX(0)))) return 1;
+    if (RTEST(rb_funcall(val, '<', 1, INT2FIX(0)))) return -1;
+    return 0;
+}
+
+#define BIGNUM_SET_LEN(b,l) \
+    ((RBASIC(b)->flags & BIGNUM_EMBED_FLAG) ? \
+     (void)(RBASIC(b)->flags = \
+	    (RBASIC(b)->flags & ~BIGNUM_EMBED_LEN_MASK) | \
+	    ((l) << BIGNUM_EMBED_LEN_SHIFT)) : \
+     (void)(RBIGNUM(b)->as.heap.len = (l)))
+
+static void
+rb_big_realloc(VALUE big, size_t len)
+{
+    BDIGIT *ds;
+    if (RBASIC(big)->flags & BIGNUM_EMBED_FLAG) {
+	if (BIGNUM_EMBED_LEN_MAX < len) {
+	    ds = ALLOC_N(BDIGIT, len);
+	    MEMCPY(ds, RBIGNUM(big)->as.ary, BDIGIT, BIGNUM_EMBED_LEN_MAX);
+	    RBIGNUM(big)->as.heap.len = BIGNUM_LEN(big);
+	    RBIGNUM(big)->as.heap.digits = ds;
+	    RBASIC(big)->flags &= ~BIGNUM_EMBED_FLAG;
+	}
+    }
+    else {
+	if (len <= BIGNUM_EMBED_LEN_MAX) {
+	    ds = RBIGNUM(big)->as.heap.digits;
+	    RBASIC(big)->flags |= BIGNUM_EMBED_FLAG;
+	    BIGNUM_SET_LEN(big, len);
+            (void)VALGRIND_MAKE_MEM_UNDEFINED((void*)RBIGNUM(big)->as.ary, sizeof(RBIGNUM(big)->as.ary));
+	    if (ds) {
+		MEMCPY(RBIGNUM(big)->as.ary, ds, BDIGIT, len);
+		xfree(ds);
+	    }
+	}
+	else {
+	    if (BIGNUM_LEN(big) == 0) {
+		RBIGNUM(big)->as.heap.digits = ALLOC_N(BDIGIT, len);
+	    }
+	    else {
+		REALLOC_N(RBIGNUM(big)->as.heap.digits, BDIGIT, len);
+	    }
+	}
+    }
+}
+
+void
+rb_big_resize(VALUE big, size_t len)
+{
+    rb_big_realloc(big, len);
+    BIGNUM_SET_LEN(big, len);
+}
+
+static VALUE
+bignew_1(VALUE klass, size_t 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);
+        (void)VALGRIND_MAKE_MEM_UNDEFINED((void*)RBIGNUM(big)->as.ary, sizeof(RBIGNUM(big)->as.ary));
+    }
+    else {
+	RBIGNUM(big)->as.heap.digits = ALLOC_N(BDIGIT, len);
+	RBIGNUM(big)->as.heap.len = len;
+    }
+    OBJ_FREEZE(big);
     return (VALUE)big;
 }
 
-#define bignew(len,sign) bignew_1(rb_cBignum,len,sign)
+VALUE
+rb_big_new(size_t len, int sign)
+{
+    return bignew(len, sign != 0);
+}
 
 VALUE
-rb_big_clone(x)
-    VALUE x;
+rb_big_clone(VALUE x)
 {
-    VALUE z = bignew_1(CLASS_OF(x), RBIGNUM(x)->len, RBIGNUM(x)->sign);
+    size_t len = BIGNUM_LEN(x);
+    VALUE z = bignew_1(CLASS_OF(x), len, BIGNUM_SIGN(x));
 
-    MEMCPY(BDIGITS(z), BDIGITS(x), BDIGIT, RBIGNUM(x)->len);
+    MEMCPY(BDIGITS(z), BDIGITS(x), BDIGIT, len);
     return z;
 }
 
+static void
+big_extend_carry(VALUE x)
+{
+    rb_big_resize(x, BIGNUM_LEN(x)+1);
+    BDIGITS(x)[BIGNUM_LEN(x)-1] = 1;
+}
+
 /* modify a bignum by 2's complement */
 static void
-get2comp(x)
-    VALUE x;
+get2comp(VALUE x)
 {
-    long i = RBIGNUM(x)->len;
+    long i = BIGNUM_LEN(x);
     BDIGIT *ds = BDIGITS(x);
-    BDIGIT_DBL num;
 
-    if (!i) return;
-    while (i--) ds[i] = ~ds[i];
-    i = 0; num = 1;
-    do {
-	num += ds[i];
-	ds[i++] = BIGLO(num);
-	num = BIGDN(num);
-    } while (i < RBIGNUM(x)->len);
-    if (num != 0) {
-	REALLOC_N(RBIGNUM(x)->digits, BDIGIT, ++RBIGNUM(x)->len);
-	ds = BDIGITS(x);
-	ds[RBIGNUM(x)->len-1] = RBIGNUM(x)->sign ? ~0 : 1;
+    if (bary_2comp(ds, i)) {
+        big_extend_carry(x);
     }
 }
 
 void
-rb_big_2comp(x)			/* get 2's complement */
-    VALUE x;
+rb_big_2comp(VALUE x)			/* get 2's complement */
 {
     get2comp(x);
 }
 
-static VALUE
-bigtrunc(x)
-    VALUE x;
+static BDIGIT
+abs2twocomp(VALUE *xp, long *n_ret)
 {
-    long len = RBIGNUM(x)->len;
+    VALUE x = *xp;
+    long n = BIGNUM_LEN(x);
+    BDIGIT *ds = BDIGITS(x);
+    BDIGIT hibits = 0;
+
+    BARY_TRUNC(ds, n);
+
+    if (n != 0 && BIGNUM_NEGATIVE_P(x)) {
+        VALUE z = bignew_1(CLASS_OF(x), n, 0);
+        MEMCPY(BDIGITS(z), ds, BDIGIT, n);
+        bary_2comp(BDIGITS(z), n);
+        hibits = BDIGMAX;
+	*xp = z;
+    }
+    *n_ret = n;
+    return hibits;
+}
+
+static void
+twocomp2abs_bang(VALUE x, int hibits)
+{
+    BIGNUM_SET_SIGN(x, !hibits);
+    if (hibits) {
+        get2comp(x);
+    }
+}
+
+static inline VALUE
+bigtrunc(VALUE x)
+{
+    size_t len = BIGNUM_LEN(x);
     BDIGIT *ds = BDIGITS(x);
 
     if (len == 0) return x;
     while (--len && !ds[len]);
-    RBIGNUM(x)->len = ++len;
+    if (BIGNUM_LEN(x) > len+1) {
+	rb_big_resize(x, len+1);
+    }
     return x;
 }
 
-static VALUE
-bigfixize(x)
-    VALUE x;
+static inline VALUE
+bigfixize(VALUE x)
 {
-    long len = RBIGNUM(x)->len;
+    size_t n = BIGNUM_LEN(x);
     BDIGIT *ds = BDIGITS(x);
+#if SIZEOF_BDIGIT < SIZEOF_LONG
+    unsigned long u;
+#else
+    BDIGIT u;
+#endif
 
-    if (len*SIZEOF_BDIGITS <= sizeof(VALUE)) {
-	long num = 0;
-	while (len--) {
-	    num = BIGUP(num) + ds[len];
-	}
-	if (num >= 0) {
-	    if (RBIGNUM(x)->sign) {
-		if (POSFIXABLE(num)) return LONG2FIX(num);
-	    }
-	    else {
-		if (NEGFIXABLE(-(long)num)) return LONG2FIX(-(long)num);
-	    }
-	}
+    BARY_TRUNC(ds, n);
+
+    if (n == 0) return INT2FIX(0);
+
+#if SIZEOF_BDIGIT < SIZEOF_LONG
+    if (sizeof(long)/SIZEOF_BDIGIT < n)
+        goto return_big;
+    else {
+        int i = (int)n;
+        u = 0;
+        while (i--) {
+            u = (unsigned long)(BIGUP(u) + ds[i]);
+        }
+    }
+#else /* SIZEOF_BDIGIT >= SIZEOF_LONG */
+    if (1 < n)
+        goto return_big;
+    else
+        u = ds[0];
+#endif
+
+    if (BIGNUM_POSITIVE_P(x)) {
+        if (POSFIXABLE(u)) return LONG2FIX((long)u);
     }
+    else {
+        if (u <= -FIXNUM_MIN) return LONG2FIX(-(long)u);
+    }
+
+  return_big:
+    rb_big_resize(x, n);
     return x;
 }
 
 static VALUE
-bignorm(x)
-    VALUE x;
+bignorm(VALUE x)
 {
-    if (!FIXNUM_P(x) && TYPE(x) == T_BIGNUM) {
-	x = bigfixize(bigtrunc(x));
+    if (RB_BIGNUM_TYPE_P(x)) {
+	x = bigfixize(x);
     }
     return x;
 }
 
 VALUE
-rb_big_norm(x)
-    VALUE x;
+rb_big_norm(VALUE x)
 {
     return bignorm(x);
 }
 
 VALUE
-rb_uint2big(n)
-    unsigned long n;
+rb_uint2big(VALUE n)
 {
-    BDIGIT_DBL num = n;
-    long i = 0;
-    BDIGIT *digits;
-    VALUE big;
+    long i;
+    VALUE big = bignew(bdigit_roomof(SIZEOF_VALUE), 1);
+    BDIGIT *digits = BDIGITS(big);
 
-    big = bignew(DIGSPERLONG, 1);
-    digits = BDIGITS(big);
-    while (i < DIGSPERLONG) {
-	digits[i++] = BIGLO(num);
-	num = BIGDN(num);
+#if SIZEOF_BDIGIT >= SIZEOF_VALUE
+    digits[0] = n;
+#else
+    for (i = 0; i < bdigit_roomof(SIZEOF_VALUE); i++) {
+	digits[i] = BIGLO(n);
+	n = BIGDN(n);
     }
+#endif
 
-    i = DIGSPERLONG;
+    i = bdigit_roomof(SIZEOF_VALUE);
     while (--i && !digits[i]) ;
-    RBIGNUM(big)->len = i+1;
+    BIGNUM_SET_LEN(big, i+1);
     return big;
 }
 
 VALUE
-rb_int2big(n)
-    long n;
+rb_int2big(SIGNED_VALUE n)
 {
     long neg = 0;
+    VALUE u;
     VALUE big;
 
     if (n < 0) {
-	n = -n;
+        u = 1 + (VALUE)(-(n + 1)); /* u = -n avoiding overflow */
 	neg = 1;
     }
-    big = rb_uint2big(n);
+    else {
+        u = n;
+    }
+    big = rb_uint2big(u);
     if (neg) {
-	RBIGNUM(big)->sign = 0;
+	BIGNUM_SET_NEGATIVE_SIGN(big);
     }
     return big;
 }
 
 VALUE
-rb_uint2inum(n)
-    unsigned long n;
+rb_uint2inum(VALUE n)
 {
     if (POSFIXABLE(n)) return LONG2FIX(n);
     return rb_uint2big(n);
 }
 
 VALUE
-rb_int2inum(n)
-    long n;
+rb_int2inum(SIGNED_VALUE n)
 {
     if (FIXABLE(n)) return LONG2FIX(n);
     return rb_int2big(n);
 }
 
-#ifdef HAVE_LONG_LONG
-
 void
-rb_quad_pack(buf, val)
-    char *buf;
-    VALUE val;
+rb_big_pack(VALUE val, unsigned long *buf, long num_longs)
 {
-    LONG_LONG q;
+    rb_integer_pack(val, buf, num_longs, sizeof(long), 0,
+            INTEGER_PACK_LSWORD_FIRST|INTEGER_PACK_NATIVE_BYTE_ORDER|
+            INTEGER_PACK_2COMP);
+}
+
+VALUE
+rb_big_unpack(unsigned long *buf, long num_longs)
+{
+    return rb_integer_unpack(buf, num_longs, sizeof(long), 0,
+            INTEGER_PACK_LSWORD_FIRST|INTEGER_PACK_NATIVE_BYTE_ORDER|
+            INTEGER_PACK_2COMP);
+}
+
+/*
+ * Calculate the number of bytes to be required to represent
+ * the absolute value of the integer given as _val_.
+ *
+ * [val] an integer.
+ * [nlz_bits_ret] number of leading zero bits in the most significant byte is returned if not NULL.
+ *
+ * This function returns ((val_numbits * CHAR_BIT + CHAR_BIT - 1) / CHAR_BIT)
+ * where val_numbits is the number of bits of abs(val).
+ * This function should not overflow.
+ *
+ * If nlz_bits_ret is not NULL,
+ * (return_value * CHAR_BIT - val_numbits) is stored in *nlz_bits_ret.
+ * In this case, 0 <= *nlz_bits_ret < CHAR_BIT.
+ *
+ */
+size_t
+rb_absint_size(VALUE val, int *nlz_bits_ret)
+{
+    BDIGIT *dp;
+    BDIGIT *de;
+    BDIGIT fixbuf[bdigit_roomof(sizeof(long))];
+
+    int num_leading_zeros;
 
     val = rb_to_int(val);
+
     if (FIXNUM_P(val)) {
-	q = FIX2LONG(val);
+        long v = FIX2LONG(val);
+        if (v < 0) {
+            v = -v;
+        }
+#if SIZEOF_BDIGIT >= SIZEOF_LONG
+        fixbuf[0] = v;
+#else
+        {
+            int i;
+            for (i = 0; i < numberof(fixbuf); i++) {
+                fixbuf[i] = BIGLO(v);
+                v = BIGDN(v);
+            }
+        }
+#endif
+        dp = fixbuf;
+        de = fixbuf + numberof(fixbuf);
     }
     else {
-	long len = RBIGNUM(val)->len;
-	BDIGIT *ds;
-
-	if (len > SIZEOF_LONG_LONG/SIZEOF_BDIGITS)
-	    rb_raise(rb_eRangeError, "bignum too big to convert into `quad int'");
-	ds = BDIGITS(val);
-	q = 0;
-	while (len--) {
-	    q = BIGUP(q);
-	    q += ds[len];
-	}
-	if (!RBIGNUM(val)->sign) q = -q;
-    }
-    memcpy(buf, (char*)&q, SIZEOF_LONG_LONG);
+        dp = BDIGITS(val);
+        de = dp + BIGNUM_LEN(val);
+    }
+    while (dp < de && de[-1] == 0)
+        de--;
+    if (dp == de) {
+        if (nlz_bits_ret)
+            *nlz_bits_ret = 0;
+        return 0;
+    }
+    num_leading_zeros = nlz(de[-1]);
+    if (nlz_bits_ret)
+        *nlz_bits_ret = num_leading_zeros % CHAR_BIT;
+    return (de - dp) * SIZEOF_BDIGIT - num_leading_zeros / CHAR_BIT;
 }
 
-VALUE
-rb_quad_unpack(buf, sign)
-    const char *buf;
-    int sign;
+static size_t
+absint_numwords_small(size_t numbytes, int nlz_bits_in_msbyte, size_t word_numbits, size_t *nlz_bits_ret)
 {
-    unsigned LONG_LONG q;
-    long neg = 0;
-    long i;
-    BDIGIT *digits;
-    VALUE big;
+    size_t val_numbits = numbytes * CHAR_BIT - nlz_bits_in_msbyte;
+    size_t div = val_numbits / word_numbits;
+    size_t mod = val_numbits % word_numbits;
+    size_t numwords;
+    size_t nlz_bits;
+    numwords = mod == 0 ? div : div + 1;
+    nlz_bits = mod == 0 ? 0 : word_numbits - mod;
+    *nlz_bits_ret = nlz_bits;
+    return numwords;
+}
 
-    memcpy(&q, buf, SIZEOF_LONG_LONG);
-    if (sign) {
-	if (FIXABLE((LONG_LONG)q)) return LONG2FIX((LONG_LONG)q);
-	if ((LONG_LONG)q < 0) {
-	    q = -(LONG_LONG)q;
-	    neg = 1;
-	}
+static size_t
+absint_numwords_generic(size_t numbytes, int nlz_bits_in_msbyte, size_t word_numbits, size_t *nlz_bits_ret)
+{
+    static const BDIGIT char_bit[1] = { CHAR_BIT };
+    BDIGIT numbytes_bary[bdigit_roomof(sizeof(numbytes))];
+    BDIGIT val_numbits_bary[bdigit_roomof(sizeof(numbytes) + 1)];
+    BDIGIT nlz_bits_in_msbyte_bary[1];
+    BDIGIT word_numbits_bary[bdigit_roomof(sizeof(word_numbits))];
+    BDIGIT div_bary[numberof(val_numbits_bary) + BIGDIVREM_EXTRA_WORDS];
+    BDIGIT mod_bary[numberof(word_numbits_bary)];
+    BDIGIT one[1] = { 1 };
+    size_t nlz_bits;
+    size_t mod;
+    int sign;
+    size_t numwords;
+
+    nlz_bits_in_msbyte_bary[0] = nlz_bits_in_msbyte;
+
+    /*
+     * val_numbits = numbytes * CHAR_BIT - nlz_bits_in_msbyte
+     * div, mod = val_numbits.divmod(word_numbits)
+     * numwords = mod == 0 ? div : div + 1
+     * nlz_bits = mod == 0 ? 0 : word_numbits - mod
+     */
+
+    bary_unpack(BARY_ARGS(numbytes_bary), &numbytes, 1, sizeof(numbytes), 0,
+        INTEGER_PACK_NATIVE_BYTE_ORDER);
+    BARY_SHORT_MUL(val_numbits_bary, numbytes_bary, char_bit);
+    if (nlz_bits_in_msbyte)
+        BARY_SUB(val_numbits_bary, val_numbits_bary, nlz_bits_in_msbyte_bary);
+    bary_unpack(BARY_ARGS(word_numbits_bary), &word_numbits, 1, sizeof(word_numbits), 0,
+        INTEGER_PACK_NATIVE_BYTE_ORDER);
+    BARY_DIVMOD(div_bary, mod_bary, val_numbits_bary, word_numbits_bary);
+    if (BARY_ZERO_P(mod_bary)) {
+        nlz_bits = 0;
     }
     else {
-	if (POSFIXABLE(q)) return LONG2FIX(q);
+        BARY_ADD(div_bary, div_bary, one);
+        bary_pack(+1, BARY_ARGS(mod_bary), &mod, 1, sizeof(mod), 0,
+            INTEGER_PACK_NATIVE_BYTE_ORDER);
+        nlz_bits = word_numbits - mod;
     }
+    sign = bary_pack(+1, BARY_ARGS(div_bary), &numwords, 1, sizeof(numwords), 0,
+        INTEGER_PACK_NATIVE_BYTE_ORDER);
 
-    i = 0;
-    big = bignew(DIGSPERLL, 1);
-    digits = BDIGITS(big);
-    while (i < DIGSPERLL) {
-	digits[i++] = BIGLO(q);
-	q = BIGDN(q);
+    if (sign == 2) {
+#if defined __GNUC__ && (__GNUC__ == 4 && __GNUC_MINOR__ == 4)
+	*nlz_bits_ret = 0;
+#endif
+        return (size_t)-1;
     }
+    *nlz_bits_ret = nlz_bits;
+    return numwords;
+}
 
-    i = DIGSPERLL;
-    while (i-- && !digits[i]) ;
-    RBIGNUM(big)->len = i+1;
+/*
+ * Calculate the number of words to be required to represent
+ * the absolute value of the integer given as _val_.
+ *
+ * [val] an integer.
+ * [word_numbits] number of bits in a word.
+ * [nlz_bits_ret] number of leading zero bits in the most significant word is returned if not NULL.
+ *
+ * This function returns ((val_numbits * CHAR_BIT + word_numbits - 1) / word_numbits)
+ * where val_numbits is the number of bits of abs(val).
+ *
+ * This function can overflow.
+ * When overflow occur, (size_t)-1 is returned.
+ *
+ * If nlz_bits_ret is not NULL and overflow is not occur,
+ * (return_value * word_numbits - val_numbits) is stored in *nlz_bits_ret.
+ * In this case, 0 <= *nlz_bits_ret < word_numbits.
+ *
+ */
+size_t
+rb_absint_numwords(VALUE val, size_t word_numbits, size_t *nlz_bits_ret)
+{
+    size_t numbytes;
+    int nlz_bits_in_msbyte;
+    size_t numwords;
+    size_t nlz_bits;
 
-    if (neg) {
-	RBIGNUM(big)->sign = 0;
+    if (word_numbits == 0)
+        return (size_t)-1;
+
+    numbytes = rb_absint_size(val, &nlz_bits_in_msbyte);
+
+    if (numbytes <= SIZE_MAX / CHAR_BIT) {
+        numwords = absint_numwords_small(numbytes, nlz_bits_in_msbyte, word_numbits, &nlz_bits);
+#ifdef DEBUG_INTEGER_PACK
+        {
+            size_t numwords0, nlz_bits0;
+            numwords0 = absint_numwords_generic(numbytes, nlz_bits_in_msbyte, word_numbits, &nlz_bits0);
+            assert(numwords0 == numwords);
+            assert(nlz_bits0 == nlz_bits);
+        }
+#endif
+    }
+    else {
+        numwords = absint_numwords_generic(numbytes, nlz_bits_in_msbyte, word_numbits, &nlz_bits);
     }
-    return bignorm(big);
+    if (numwords == (size_t)-1)
+        return numwords;
+
+    if (nlz_bits_ret)
+        *nlz_bits_ret = nlz_bits;
+
+    return numwords;
 }
 
+/* Test abs(val) consists only a bit or not.
+ *
+ * Returns 1 if abs(val) == 1 << n for some n >= 0.
+ * Returns 0 otherwise.
+ *
+ * rb_absint_singlebit_p can be used to determine required buffer size
+ * for rb_integer_pack used with INTEGER_PACK_2COMP (two's complement).
+ *
+ * Following example calculates number of bits required to
+ * represent val in two's complement number, without sign bit.
+ *
+ *   size_t size;
+ *   int neg = FIXNUM_P(val) ? FIX2LONG(val) < 0 : BIGNUM_NEGATIVE_P(val);
+ *   size = rb_absint_numwords(val, 1, NULL)
+ *   if (size == (size_t)-1) ...overflow...
+ *   if (neg && rb_absint_singlebit_p(val))
+ *     size--;
+ *
+ * Following example calculates number of bytes required to
+ * represent val in two's complement number, with sign bit.
+ *
+ *   size_t size;
+ *   int neg = FIXNUM_P(val) ? FIX2LONG(val) < 0 : BIGNUM_NEGATIVE_P(val);
+ *   int nlz_bits;
+ *   size = rb_absint_size(val, &nlz_bits);
+ *   if (nlz_bits == 0 && !(neg && rb_absint_singlebit_p(val)))
+ *     size++;
+ */
+int
+rb_absint_singlebit_p(VALUE val)
+{
+    BDIGIT *dp;
+    BDIGIT *de;
+    BDIGIT fixbuf[bdigit_roomof(sizeof(long))];
+    BDIGIT d;
+
+    val = rb_to_int(val);
+
+    if (FIXNUM_P(val)) {
+        long v = FIX2LONG(val);
+        if (v < 0) {
+            v = -v;
+        }
+#if SIZEOF_BDIGIT >= SIZEOF_LONG
+        fixbuf[0] = v;
 #else
+        {
+            int i;
+            for (i = 0; i < numberof(fixbuf); i++) {
+                fixbuf[i] = BIGLO(v);
+                v = BIGDN(v);
+            }
+        }
+#endif
+        dp = fixbuf;
+        de = fixbuf + numberof(fixbuf);
+    }
+    else {
+        dp = BDIGITS(val);
+        de = dp + BIGNUM_LEN(val);
+    }
+    while (dp < de && de[-1] == 0)
+        de--;
+    while (dp < de && dp[0] == 0)
+        dp++;
+    if (dp == de) /* no bit set. */
+        return 0;
+    if (dp != de-1) /* two non-zero words. two bits set, at least. */
+        return 0;
+    d = *dp;
+    return POW2_P(d);
+}
 
-#define QUAD_SIZE 8
 
-void
-rb_quad_pack(buf, val)
-    char *buf;
-    VALUE val;
+/*
+ * Export an integer into a buffer.
+ *
+ * This function fills the buffer specified by _words_ and _numwords_ as
+ * val in the format specified by _wordsize_, _nails_ and _flags_.
+ *
+ * [val] Fixnum, Bignum or another integer like object which has to_int method.
+ * [words] buffer to export abs(val).
+ * [numwords] the size of given buffer as number of words.
+ * [wordsize] the size of word as number of bytes.
+ * [nails] number of padding bits in a word.
+ *   Most significant nails bits of each word are filled by zero.
+ * [flags] bitwise or of constants which name starts "INTEGER_PACK_".
+ *
+ * flags:
+ * [INTEGER_PACK_MSWORD_FIRST] Store the most significant word as the first word.
+ * [INTEGER_PACK_LSWORD_FIRST] Store the least significant word as the first word.
+ * [INTEGER_PACK_MSBYTE_FIRST] Store the most significant byte in a word as the first byte in the word.
+ * [INTEGER_PACK_LSBYTE_FIRST] Store the least significant byte in a word as the first byte in the word.
+ * [INTEGER_PACK_NATIVE_BYTE_ORDER] INTEGER_PACK_MSBYTE_FIRST or INTEGER_PACK_LSBYTE_FIRST corresponding to the host's endian.
+ * [INTEGER_PACK_2COMP] Use 2's complement representation.
+ * [INTEGER_PACK_LITTLE_ENDIAN] Same as INTEGER_PACK_LSWORD_FIRST|INTEGER_PACK_LSBYTE_FIRST
+ * [INTEGER_PACK_BIG_ENDIAN] Same as INTEGER_PACK_MSWORD_FIRST|INTEGER_PACK_MSBYTE_FIRST
+ * [INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION] Use generic implementation (for test and debug).
+ *
+ * This function fills the buffer specified by _words_
+ * as abs(val) if INTEGER_PACK_2COMP is not specified in _flags_.
+ * If INTEGER_PACK_2COMP is specified, 2's complement representation of val is
+ * filled in the buffer.
+ *
+ * This function returns the signedness and overflow condition.
+ * The overflow condition depends on INTEGER_PACK_2COMP.
+ *
+ * INTEGER_PACK_2COMP is not specified:
+ *   -2 : negative overflow.  val <= -2**(numwords*(wordsize*CHAR_BIT-nails))
+ *   -1 : negative without overflow.  -2**(numwords*(wordsize*CHAR_BIT-nails)) < val < 0
+ *   0 : zero.  val == 0
+ *   1 : positive without overflow.  0 < val < 2**(numwords*(wordsize*CHAR_BIT-nails))
+ *   2 : positive overflow.  2**(numwords*(wordsize*CHAR_BIT-nails)) <= val
+ *
+ * INTEGER_PACK_2COMP is specified:
+ *   -2 : negative overflow.  val < -2**(numwords*(wordsize*CHAR_BIT-nails))
+ *   -1 : negative without overflow.  -2**(numwords*(wordsize*CHAR_BIT-nails)) <= val < 0
+ *   0 : zero.  val == 0
+ *   1 : positive without overflow.  0 < val < 2**(numwords*(wordsize*CHAR_BIT-nails))
+ *   2 : positive overflow.  2**(numwords*(wordsize*CHAR_BIT-nails)) <= val
+ *
+ * The value, -2**(numwords*(wordsize*CHAR_BIT-nails)), is representable
+ * in 2's complement representation but not representable in absolute value.
+ * So -1 is returned for the value if INTEGER_PACK_2COMP is specified
+ * but returns -2 if INTEGER_PACK_2COMP is not specified.
+ *
+ * The least significant words are filled in the buffer when overflow occur.
+ */
+
+int
+rb_integer_pack(VALUE val, void *words, size_t numwords, size_t wordsize, size_t nails, int flags)
 {
-    long len;
+    int sign;
+    BDIGIT *ds;
+    size_t num_bdigits;
+    BDIGIT fixbuf[bdigit_roomof(sizeof(long))];
+
+    RB_GC_GUARD(val) = rb_to_int(val);
 
-    memset(buf, 0, QUAD_SIZE);
-    val = rb_to_int(val);
     if (FIXNUM_P(val)) {
-	val = rb_int2big(FIX2LONG(val));
-    }
-    len = RBIGNUM(val)->len * SIZEOF_BDIGITS;
-    if (len > QUAD_SIZE) {
-	rb_raise(rb_eRangeError, "bignum too big to convert into `quad int'");
-    }
-    memcpy(buf, (char*)BDIGITS(val), len);
-    if (!RBIGNUM(val)->sign) {
-	len = QUAD_SIZE;
-	while (len--) {
-	    *buf = ~*buf;
-	    buf++;
-	}
+        long v = FIX2LONG(val);
+        if (v < 0) {
+            sign = -1;
+            v = -v;
+        }
+        else {
+            sign = 1;
+        }
+#if SIZEOF_BDIGIT >= SIZEOF_LONG
+        fixbuf[0] = v;
+#else
+        {
+            int i;
+            for (i = 0; i < numberof(fixbuf); i++) {
+                fixbuf[i] = BIGLO(v);
+                v = BIGDN(v);
+            }
+        }
+#endif
+        ds = fixbuf;
+        num_bdigits = numberof(fixbuf);
+    }
+    else {
+        sign = BIGNUM_POSITIVE_P(val) ? 1 : -1;
+        ds = BDIGITS(val);
+        num_bdigits = BIGNUM_LEN(val);
     }
+
+    return bary_pack(sign, ds, num_bdigits, words, numwords, wordsize, nails, flags);
 }
 
-#define BNEG(b) (RSHIFT(((BDIGIT*)b)[QUAD_SIZE/SIZEOF_BDIGITS-1],BITSPERDIG-1) != 0)
+/*
+ * Import an integer into a buffer.
+ *
+ * [words] buffer to import.
+ * [numwords] the size of given buffer as number of words.
+ * [wordsize] the size of word as number of bytes.
+ * [nails] number of padding bits in a word.
+ *   Most significant nails bits of each word are ignored.
+ * [flags] bitwise or of constants which name starts "INTEGER_PACK_".
+ *
+ * flags:
+ * [INTEGER_PACK_MSWORD_FIRST] Interpret the first word as the most significant word.
+ * [INTEGER_PACK_LSWORD_FIRST] Interpret the first word as the least significant word.
+ * [INTEGER_PACK_MSBYTE_FIRST] Interpret the first byte in a word as the most significant byte in the word.
+ * [INTEGER_PACK_LSBYTE_FIRST] Interpret the first byte in a word as the least significant byte in the word.
+ * [INTEGER_PACK_NATIVE_BYTE_ORDER] INTEGER_PACK_MSBYTE_FIRST or INTEGER_PACK_LSBYTE_FIRST corresponding to the host's endian.
+ * [INTEGER_PACK_2COMP] Use 2's complement representation.
+ * [INTEGER_PACK_LITTLE_ENDIAN] Same as INTEGER_PACK_LSWORD_FIRST|INTEGER_PACK_LSBYTE_FIRST
+ * [INTEGER_PACK_BIG_ENDIAN] Same as INTEGER_PACK_MSWORD_FIRST|INTEGER_PACK_MSBYTE_FIRST
+ * [INTEGER_PACK_FORCE_BIGNUM] the result will be a Bignum
+ *   even if it is representable as a Fixnum.
+ * [INTEGER_PACK_NEGATIVE] Returns non-positive value.
+ *   (Returns non-negative value if not specified.)
+ * [INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION] Use generic implementation (for test and debug).
+ *
+ * This function returns the imported integer as Fixnum or Bignum.
+ *
+ * The range of the result value depends on INTEGER_PACK_2COMP and INTEGER_PACK_NEGATIVE.
+ *
+ * INTEGER_PACK_2COMP is not set:
+ *   0 <= val < 2**(numwords*(wordsize*CHAR_BIT-nails)) if !INTEGER_PACK_NEGATIVE
+ *   -2**(numwords*(wordsize*CHAR_BIT-nails)) < val <= 0 if INTEGER_PACK_NEGATIVE
+ *
+ * INTEGER_PACK_2COMP is set:
+ *   -2**(numwords*(wordsize*CHAR_BIT-nails)-1) <= val <= 2**(numwords*(wordsize*CHAR_BIT-nails)-1)-1 if !INTEGER_PACK_NEGATIVE
+ *   -2**(numwords*(wordsize*CHAR_BIT-nails)) <= val <= -1 if INTEGER_PACK_NEGATIVE
+ *
+ * INTEGER_PACK_2COMP without INTEGER_PACK_NEGATIVE means sign extension.
+ * INTEGER_PACK_2COMP with INTEGER_PACK_NEGATIVE mean assuming the higher bits are 1.
+ *
+ * Note that this function returns 0 when numwords is zero and
+ * INTEGER_PACK_2COMP is set but INTEGER_PACK_NEGATIVE is not set.
+ */
 
 VALUE
-rb_quad_unpack(buf, sign)
-    const char *buf;
+rb_integer_unpack(const void *words, size_t numwords, size_t wordsize, size_t nails, int flags)
+{
+    VALUE val;
+    size_t num_bdigits;
     int sign;
+    int nlp_bits;
+    BDIGIT *ds;
+    BDIGIT fixbuf[2] = { 0, 0 };
+
+    validate_integer_pack_format(numwords, wordsize, nails, flags,
+            INTEGER_PACK_MSWORD_FIRST|
+            INTEGER_PACK_LSWORD_FIRST|
+            INTEGER_PACK_MSBYTE_FIRST|
+            INTEGER_PACK_LSBYTE_FIRST|
+            INTEGER_PACK_NATIVE_BYTE_ORDER|
+            INTEGER_PACK_2COMP|
+            INTEGER_PACK_FORCE_BIGNUM|
+            INTEGER_PACK_NEGATIVE|
+            INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION);
+
+    num_bdigits = integer_unpack_num_bdigits(numwords, wordsize, nails, &nlp_bits);
+
+    if (LONG_MAX-1 < num_bdigits)
+        rb_raise(rb_eArgError, "too big to unpack as an integer");
+    if (num_bdigits <= numberof(fixbuf) && !(flags & INTEGER_PACK_FORCE_BIGNUM)) {
+        val = Qfalse;
+        ds = fixbuf;
+    }
+    else {
+        val = bignew((long)num_bdigits, 0);
+        ds = BDIGITS(val);
+    }
+    sign = bary_unpack_internal(ds, num_bdigits, words, numwords, wordsize, nails, flags, nlp_bits);
+
+    if (sign == -2) {
+        if (val) {
+            big_extend_carry(val);
+        }
+        else if (num_bdigits == numberof(fixbuf)) {
+            val = bignew((long)num_bdigits+1, 0);
+	    MEMCPY(BDIGITS(val), fixbuf, BDIGIT, num_bdigits);
+            BDIGITS(val)[num_bdigits++] = 1;
+        }
+        else {
+            ds[num_bdigits++] = 1;
+        }
+    }
+
+    if (!val) {
+        BDIGIT_DBL u = fixbuf[0] + BIGUP(fixbuf[1]);
+        if (u == 0)
+            return LONG2FIX(0);
+	if (0 < sign && POSFIXABLE(u))
+            return LONG2FIX(u);
+	if (sign < 0 && BDIGIT_MSB(fixbuf[1]) == 0 &&
+                NEGFIXABLE(-(BDIGIT_DBL_SIGNED)u))
+            return LONG2FIX(-(BDIGIT_DBL_SIGNED)u);
+        val = bignew((long)num_bdigits, 0 <= sign);
+        MEMCPY(BDIGITS(val), fixbuf, BDIGIT, num_bdigits);
+    }
+
+    if ((flags & INTEGER_PACK_FORCE_BIGNUM) && sign != 0 &&
+        bary_zero_p(BDIGITS(val), BIGNUM_LEN(val)))
+        sign = 0;
+    BIGNUM_SET_SIGN(val, 0 <= sign);
+
+    if (flags & INTEGER_PACK_FORCE_BIGNUM)
+        return bigtrunc(val);
+    return bignorm(val);
+}
+
+#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));
+
+static inline int
+valid_radix_p(int base)
+{
+    return (1 < base && base <= 36);
+}
+
+static inline void
+invalid_radix(int base)
 {
-    VALUE big = bignew(QUAD_SIZE/SIZEOF_BDIGITS, 1);
+    rb_raise(rb_eArgError, "invalid radix %d", base);
+}
 
-    memcpy((char*)BDIGITS(big), buf, QUAD_SIZE);
-    if (sign && BNEG(buf)) {
-	long len = QUAD_SIZE;
-	char *tmp = (char*)BDIGITS(big);
+static inline void
+invalid_integer(VALUE s)
+{
+    rb_raise(rb_eArgError, "invalid value for Integer(): %+"PRIsVALUE, s);
+}
+
+static int
+str2big_scan_digits(const char *s, const char *str, int base, int badcheck, size_t *num_digits_p, ssize_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;
+    }
 
-	RBIGNUM(big)->sign = 0;
-	while (len--) {
-	    *tmp = ~*tmp;
-	    tmp++;
+    if (badcheck && *str == '_') goto bad;
+
+    while ((c = *str++) != 0) {
+	if (c == '_') {
+	    if (nondigit) {
+		if (badcheck) goto bad;
+		break;
+	    }
+	    nondigit = (char) c;
+	}
+	else if ((c = conv_digit(c)) < 0 || c >= base) {
+	    break;
 	}
+	else {
+	    nondigit = 0;
+	    num_digits++;
+	    digits_end = str;
+	}
+	if (len > 0 && !--len) break;
     }
+    if (badcheck && nondigit) goto bad;
+    if (badcheck && len) {
+	str--;
+	while (*str && ISSPACE(*str)) {
+	    str++;
+	    if (len > 0 && !--len) break;
+	}
+	if (len && *str) {
+	  bad:
+	    return FALSE;
+	}
+    }
+    *num_digits_p = num_digits;
+    *len_p = digits_end - digits_start;
+    return TRUE;
+}
+
+static VALUE
+str2big_poweroftwo(
+    int sign,
+    const char *digits_start,
+    const char *digits_end,
+    size_t num_digits,
+    int bits_per_digit)
+{
+    BDIGIT *dp;
+    BDIGIT_DBL dd;
+    int numbits;
+
+    size_t num_bdigits;
+    const char *p;
+    int c;
+    VALUE z;
+
+    num_bdigits = (num_digits / BITSPERDIG) * bits_per_digit + roomof((num_digits % BITSPERDIG) * bits_per_digit, BITSPERDIG);
+    z = bignew(num_bdigits, sign);
+    dp = BDIGITS(z);
+    dd = 0;
+    numbits = 0;
+    for (p = digits_end; digits_start < p; p--) {
+        if ((c = conv_digit(p[-1])) < 0)
+            continue;
+        dd |= (BDIGIT_DBL)c << numbits;
+        numbits += bits_per_digit;
+        if (BITSPERDIG <= numbits) {
+            *dp++ = BIGLO(dd);
+            dd = BIGDN(dd);
+            numbits -= BITSPERDIG;
+        }
+    }
+    if (numbits) {
+        *dp++ = BIGLO(dd);
+    }
+    assert((size_t)(dp - BDIGITS(z)) == num_bdigits);
+
+    return z;
+}
 
-    return bignorm(big);
+static VALUE
+str2big_normal(
+    int sign,
+    const char *digits_start,
+    const char *digits_end,
+    size_t num_bdigits,
+    int base)
+{
+    size_t blen = 1;
+    BDIGIT *zds;
+    BDIGIT_DBL num;
+
+    size_t i;
+    const char *p;
+    int c;
+    VALUE z;
+
+    z = bignew(num_bdigits, sign);
+    zds = BDIGITS(z);
+    BDIGITS_ZERO(zds, num_bdigits);
+
+    for (p = digits_start; p < digits_end; p++) {
+        if ((c = conv_digit(*p)) < 0)
+            continue;
+        num = c;
+        i = 0;
+        for (;;) {
+            while (i<blen) {
+                num += (BDIGIT_DBL)zds[i]*base;
+                zds[i++] = BIGLO(num);
+                num = BIGDN(num);
+            }
+            if (num) {
+                blen++;
+                continue;
+            }
+            break;
+        }
+        assert(blen <= num_bdigits);
+    }
+
+    return z;
 }
 
+static VALUE
+str2big_karatsuba(
+    int sign,
+    const char *digits_start,
+    const char *digits_end,
+    size_t num_digits,
+    size_t num_bdigits,
+    int digits_per_bdigits_dbl,
+    int base)
+{
+    VALUE powerv;
+    size_t unit;
+    VALUE tmpuv = 0;
+    BDIGIT *uds, *vds, *tds;
+    BDIGIT_DBL dd;
+    BDIGIT_DBL current_base;
+    int m;
+    int power_level = 0;
+
+    size_t i;
+    const char *p;
+    int c;
+    VALUE z;
+
+    uds = ALLOCV_N(BDIGIT, tmpuv, 2*num_bdigits);
+    vds = uds + num_bdigits;
+
+    powerv = power_cache_get_power(base, power_level, NULL);
+
+    i = 0;
+    dd = 0;
+    current_base = 1;
+    m = digits_per_bdigits_dbl;
+    if (num_digits < (size_t)m)
+        m = (int)num_digits;
+    for (p = digits_end; digits_start < p; p--) {
+        if ((c = conv_digit(p[-1])) < 0)
+            continue;
+        dd = dd + c * current_base;
+        current_base *= base;
+        num_digits--;
+        m--;
+        if (m == 0) {
+            uds[i++] = BIGLO(dd);
+            uds[i++] = (BDIGIT)BIGDN(dd);
+            dd = 0;
+            m = digits_per_bdigits_dbl;
+            if (num_digits < (size_t)m)
+                m = (int)num_digits;
+            current_base = 1;
+        }
+    }
+    assert(i == num_bdigits);
+    for (unit = 2; unit < num_bdigits; unit *= 2) {
+        for (i = 0; i < num_bdigits; i += unit*2) {
+            if (2*unit <= num_bdigits - i) {
+                bary_mul(vds+i, unit*2, BDIGITS(powerv), BIGNUM_LEN(powerv), uds+i+unit, unit);
+                bary_add(vds+i, unit*2, vds+i, unit*2, uds+i, unit);
+            }
+            else if (unit <= num_bdigits - i) {
+                bary_mul(vds+i, num_bdigits-i, BDIGITS(powerv), BIGNUM_LEN(powerv), uds+i+unit, num_bdigits-(i+unit));
+                bary_add(vds+i, num_bdigits-i, vds+i, num_bdigits-i, uds+i, unit);
+            }
+            else {
+                MEMCPY(vds+i, uds+i, BDIGIT, num_bdigits-i);
+            }
+        }
+        power_level++;
+        powerv = power_cache_get_power(base, power_level, NULL);
+        tds = vds;
+        vds = uds;
+        uds = tds;
+    }
+    BARY_TRUNC(uds, num_bdigits);
+    z = bignew(num_bdigits, sign);
+    MEMCPY(BDIGITS(z), uds, BDIGIT, num_bdigits);
+
+    if (tmpuv)
+        ALLOCV_END(tmpuv);
+
+    return z;
+}
+
+#ifdef USE_GMP
+static VALUE
+str2big_gmp(
+    int sign,
+    const char *digits_start,
+    const char *digits_end,
+    size_t num_digits,
+    size_t num_bdigits,
+    int base)
+{
+    const size_t nails = (sizeof(BDIGIT)-SIZEOF_BDIGIT)*CHAR_BIT;
+    char *buf, *p;
+    const char *q;
+    VALUE tmps;
+    mpz_t mz;
+    VALUE z;
+    BDIGIT *zds;
+    size_t zn, count;
+
+    buf = ALLOCV_N(char, tmps, num_digits+1);
+    p = buf;
+    for (q = digits_start; q < digits_end; q++) {
+        if (conv_digit(*q) < 0)
+            continue;
+        *p++ = *q;
+    }
+    *p = '\0';
+
+    mpz_init(mz);
+    mpz_set_str(mz, buf, base);
+    zn = num_bdigits;
+    z = bignew(zn, sign);
+    zds = BDIGITS(z);
+    mpz_export(BDIGITS(z), &count, -1, sizeof(BDIGIT), 0, nails, mz);
+    BDIGITS_ZERO(zds+count, zn-count);
+    mpz_clear(mz);
+
+    if (tmps)
+        ALLOCV_END(tmps);
+
+    return z;
+}
 #endif
 
+/*
+ * Parse +str+ as Ruby Integer, i.e., underscores, 0d and 0b prefixes.
+ *
+ * str:      pointer to the string to be parsed.
+ *	     should be NUL-terminated.
+ * base:     base of conversion, must be 2..36, or -36..0.
+ *           if +base+ > 0, the conversion is done according to the +base+
+ *           and unmatched prefix is parsed as a part of the result if
+ *           present.
+ *           if +base+ <= 0, the conversion is done according to the
+ *           prefix if present, in base <code>-base</code> if +base+ < -1,
+ *           or in base 10.
+ * badcheck: if non-zero, +ArgumentError+ is raised when +str+ is not
+ *           valid as an Integer.  if zero, Fixnum 0 is returned in
+ *           that case.
+ */
 VALUE
-rb_cstr_to_inum(str, base, badcheck)
-    const char *str;
-    int base;
-    int badcheck;
+rb_cstr_to_inum(const char *str, int base, int badcheck)
 {
-    const char *s = str;
     char *end;
-    char sign = 1, nondigit = 0;
+    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.
+ * base: see +rb_cstr_to_inum+
+ */
+
+VALUE
+rb_cstr_parse_inum(const char *str, ssize_t len, char **endp, int base)
+{
+    const char *const s = str;
+    char sign = 1;
     int c;
-    BDIGIT_DBL num;
-    long len, blen = 1;
-    long i;
     VALUE z;
-    BDIGIT *zds;
 
-#define conv_digit(c) \
-    (!ISASCII(c) ? -1 : \
-     isdigit(c) ? ((c) - '0') : \
-     islower(c) ? ((c) - 'a' + 10) : \
-     isupper(c) ? ((c) - 'A' + 10) : \
-     -1)
+    unsigned long val;
+    int ov;
+
+    const char *digits_start, *digits_end;
+    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)
 
     if (!str) {
-	if (badcheck) goto bad;
-	return INT2FIX(0);
-    }
-    if (badcheck) {
-	while (ISSPACE(*str)) str++;
-    }
-    else {
-	while (ISSPACE(*str) || *str == '_') str++;
+      bad:
+	if (endp) *endp = (char *)str;
+	return Qnil;
     }
+    if (len) {
+	while (ISSPACE(*str)) ADV(1);
 
-    if (str[0] == '+') {
-	str++;
-    }
-    else if (str[0] == '-') {
-	str++;
-	sign = 0;
-    }
-    if (str[0] == '+' || str[0] == '-') {
-	if (badcheck) goto bad;
-	return INT2FIX(0);
+	if (str[0] == '+') {
+	    ADV(1);
+	}
+	else if (str[0] == '-') {
+	    ADV(1);
+	    sign = 0;
+	}
+	ASSERT_LEN();
+	if (str[0] == '+' || str[0] == '-') {
+	    goto bad;
+	}
     }
     if (base <= 0) {
-	if (str[0] == '0') {
+	if (str[0] == '0' && len > 1) {
 	    switch (str[1]) {
 	      case 'x': case 'X':
 		base = 16;
+		ADV(2);
 		break;
 	      case 'b': case 'B':
 		base = 2;
+		ADV(2);
 		break;
 	      case 'o': case 'O':
 		base = 8;
+		ADV(2);
 		break;
 	      case 'd': case 'D':
 		base = 10;
+		ADV(2);
 		break;
 	      default:
 		base = 8;
@@ -420,75 +4091,67 @@ rb_cstr_to_inum(str, base, badcheck)
 	    base = 10;
 	}
     }
-    switch (base) {
-      case 2:
-	len = 1;
+    else if (len == 1) {
+	/* no prefix */
+    }
+    else if (base == 2) {
 	if (str[0] == '0' && (str[1] == 'b'||str[1] == 'B')) {
-	    str += 2;
+	    ADV(2);
 	}
-	break;
-      case 3:
-	len = 2;
-	break;
-      case 8:
+    }
+    else if (base == 8) {
 	if (str[0] == '0' && (str[1] == 'o'||str[1] == 'O')) {
-	    str += 2;
+	    ADV(2);
 	}
-      case 4: case 5: case 6: case 7:
-	len = 3;
-	break;
-      case 10:
+    }
+    else if (base == 10) {
 	if (str[0] == '0' && (str[1] == 'd'||str[1] == 'D')) {
-	    str += 2;
+	    ADV(2);
 	}
-      case 9: case 11: case 12: case 13: case 14: case 15:
-	len = 4;
-	break;
-      case 16:
-	len = 4;
+    }
+    else if (base == 16) {
 	if (str[0] == '0' && (str[1] == 'x'||str[1] == 'X')) {
-	    str += 2;
-	}
-	break;
-      default:
-	if (base < 2 || 36 < base) {
-	    rb_raise(rb_eArgError, "illegal radix %d", base);
+	    ADV(2);
 	}
-	if (base <= 32) {
-	    len = 5;
-	}
-	else {
-	    len = 6;
-	}
-	break;
     }
-    if (*str == '0') {		/* squeeze preceeding 0s */
+    if (!valid_radix_p(base)) {
+        invalid_radix(base);
+    }
+    if (!len) goto bad;
+    if (*str == '0' && len != 1) { /* squeeze preceding 0s */
 	int us = 0;
+	const char *end = len < 0 ? NULL : str + len;
 	while ((c = *++str) == '0' || c == '_') {
 	    if (c == '_') {
 		if (++us >= 2)
 		    break;
-	    } else
+	    }
+	    else {
 		us = 0;
+	    }
+	    if (str == end) break;
 	}
-	if (!(c = *str) || ISSPACE(c)) --str;
+	if (!c || ISSPACE(c)) --str;
+	if (end) len = end - str;
+	ASSERT_LEN();
     }
     c = *str;
     c = conv_digit(c);
     if (c < 0 || c >= base) {
-	if (badcheck) goto bad;
-	return INT2FIX(0);
+	goto bad;
     }
-    len *= strlen(str)*sizeof(char);
 
-    if (len <= (sizeof(VALUE)*CHAR_BIT)) {
-	unsigned long val = strtoul((char*)str, &end, base);
-
-	if (*end == '_') goto bigparse;
+    val = ruby_scan_digits(str, len, base, &num_digits, &ov);
+    if (!ov) {
+	const char *end = &str[num_digits];
+	if (num_digits > 0 && *end == '_') goto bigparse;
+	if (endp) *endp = (char *)end;
 	if (badcheck) {
-	    if (end == str) goto bad; /* no number */
-	    while (*end && ISSPACE(*end)) end++;
-	    if (*end) goto bad;	      /* trailing garbage */
+	    if (num_digits == 0) return Qnil; /* no number */
+	    while (len < 0 ? *end : end < str + len) {
+		if (!ISSPACE(*end)) return Qnil; /* trailing garbage */
+		end++;
+	    }
 	}
 
 	if (POSFIXABLE(val)) {
@@ -500,141 +4163,282 @@ rb_cstr_to_inum(str, base, badcheck)
 	}
 	else {
 	    VALUE big = rb_uint2big(val);
-	    RBIGNUM(big)->sign = sign;
+	    BIGNUM_SET_SIGN(big, sign);
 	    return bignorm(big);
 	}
     }
+
   bigparse:
-    len = (len/BITSPERDIG)+1;
-    if (badcheck && *str == '_') goto bad;
+    digits_start = str;
+    if (!str2big_scan_digits(s, str, base, badcheck, &num_digits, &len))
+	goto bad;
+    digits_end = digits_start + len;
 
-    z = bignew(len, sign);
-    zds = BDIGITS(z);
-    for (i=len;i--;) zds[i]=0;
-    while ((c = *str++) != 0) {
-	if (c == '_') {
-	    if (nondigit) {
-		if (badcheck) goto bad;
-		break;
-	    }
-	    nondigit = c;
-	    continue;
-	}
-	else if ((c = conv_digit(c)) < 0) {
-	    break;
-	}
-	if (c >= base) break;
-	nondigit = 0;
-	i = 0;
-	num = c;
-	for (;;) {
-	    while (i<blen) {
-		num += (BDIGIT_DBL)zds[i]*base;
-		zds[i++] = BIGLO(num);
-		num = BIGDN(num);
-	    }
-	    if (num) {
-		blen++;
-		continue;
-	    }
-	    break;
-	}
+    if (POW2_P(base)) {
+        z = str2big_poweroftwo(sign, digits_start, digits_end, num_digits,
+			       bit_length(base-1));
     }
-    if (badcheck) {
-	str--;
-	if (s+1 < str && str[-1] == '_') goto bad;
-	while (*str && ISSPACE(*str)) str++;
-	if (*str) {
-	  bad:
-	    rb_invalid_str(s, "Integer");
-	}
+    else {
+        int digits_per_bdigits_dbl;
+        maxpow_in_bdigit_dbl(base, &digits_per_bdigits_dbl);
+        num_bdigits = roomof(num_digits, digits_per_bdigits_dbl)*2;
+
+#ifdef USE_GMP
+        if (GMP_STR2BIG_DIGITS < num_bdigits) {
+            z = str2big_gmp(sign, digits_start, digits_end, num_digits,
+                    num_bdigits, base);
+        }
+        else
+#endif
+        if (num_bdigits < KARATSUBA_MUL_DIGITS) {
+            z = str2big_normal(sign, digits_start, digits_end,
+                    num_bdigits, base);
+        }
+        else {
+            z = str2big_karatsuba(sign, digits_start, digits_end, num_digits,
+                    num_bdigits, digits_per_bdigits_dbl, base);
+        }
     }
 
     return bignorm(z);
 }
 
 VALUE
-rb_str_to_inum(str, base, badcheck)
-    VALUE str;
-    int base;
-    int badcheck;
+rb_str_to_inum(VALUE str, int base, int badcheck)
 {
-    char *s;
+    VALUE ret;
+    const char *s;
     long len;
+    char *end;
 
     StringValue(str);
-    if (badcheck) {
-	s = StringValueCStr(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);
+    }
+    return ret;
+}
+
+VALUE
+rb_str2big_poweroftwo(VALUE arg, int base, int badcheck)
+{
+    int positive_p = 1;
+    const char *s, *str;
+    const char *digits_start, *digits_end;
+    size_t num_digits;
+    ssize_t len;
+    VALUE z;
+
+    if (!valid_radix_p(base) || !POW2_P(base)) {
+        invalid_radix(base);
     }
-    else {
-	s = RSTRING(str)->ptr;
+
+    rb_must_asciicompat(arg);
+    s = str = StringValueCStr(arg);
+    len = RSTRING_LEN(arg);
+    if (*str == '-') {
+	len--;
+        str++;
+        positive_p = 0;
     }
-    if (s) {
-	len = RSTRING(str)->len;
-	if (s[len]) {		/* no sentinel somehow */
-	    char *p = ALLOCA_N(char, len+1);
 
-	    MEMCPY(p, s, char, len);
-	    p[len] = '\0';
-	    s = p;
-	}
+    digits_start = str;
+    if (!str2big_scan_digits(s, str, base, badcheck, &num_digits, &len))
+	invalid_integer(arg);
+    digits_end = digits_start + len;
+
+    z = str2big_poweroftwo(positive_p, digits_start, digits_end, num_digits,
+            bit_length(base-1));
+
+    RB_GC_GUARD(arg);
+
+    return bignorm(z);
+}
+
+VALUE
+rb_str2big_normal(VALUE arg, int base, int badcheck)
+{
+    int positive_p = 1;
+    const char *s, *str;
+    const char *digits_start, *digits_end;
+    size_t num_digits;
+    ssize_t len;
+    VALUE z;
+
+    int digits_per_bdigits_dbl;
+    size_t num_bdigits;
+
+    if (!valid_radix_p(base)) {
+        invalid_radix(base);
+    }
+
+    rb_must_asciicompat(arg);
+    s = str = StringValuePtr(arg);
+    len = RSTRING_LEN(arg);
+    if (len > 0 && *str == '-') {
+	len--;
+        str++;
+        positive_p = 0;
     }
-    return rb_cstr_to_inum(s, base, badcheck);
+
+    digits_start = str;
+    if (!str2big_scan_digits(s, str, base, badcheck, &num_digits, &len))
+	invalid_integer(arg);
+    digits_end = digits_start + len;
+
+    maxpow_in_bdigit_dbl(base, &digits_per_bdigits_dbl);
+    num_bdigits = roomof(num_digits, digits_per_bdigits_dbl)*2;
+
+    z = str2big_normal(positive_p, digits_start, digits_end,
+            num_bdigits, base);
+
+    RB_GC_GUARD(arg);
+
+    return bignorm(z);
 }
 
-#if HAVE_LONG_LONG
+VALUE
+rb_str2big_karatsuba(VALUE arg, int base, int badcheck)
+{
+    int positive_p = 1;
+    const char *s, *str;
+    const char *digits_start, *digits_end;
+    size_t num_digits;
+    ssize_t len;
+    VALUE z;
 
+    int digits_per_bdigits_dbl;
+    size_t num_bdigits;
+
+    if (!valid_radix_p(base)) {
+        invalid_radix(base);
+    }
+
+    rb_must_asciicompat(arg);
+    s = str = StringValuePtr(arg);
+    len = RSTRING_LEN(arg);
+    if (len > 0 && *str == '-') {
+	len--;
+        str++;
+        positive_p = 0;
+    }
+
+    digits_start = str;
+    if (!str2big_scan_digits(s, str, base, badcheck, &num_digits, &len))
+	invalid_integer(arg);
+    digits_end = digits_start + len;
+
+    maxpow_in_bdigit_dbl(base, &digits_per_bdigits_dbl);
+    num_bdigits = roomof(num_digits, digits_per_bdigits_dbl)*2;
+
+    z = str2big_karatsuba(positive_p, digits_start, digits_end, num_digits,
+            num_bdigits, digits_per_bdigits_dbl, base);
+
+    RB_GC_GUARD(arg);
+
+    return bignorm(z);
+}
+
+#ifdef USE_GMP
 VALUE
-rb_ull2big(n)
-    unsigned LONG_LONG n;
+rb_str2big_gmp(VALUE arg, int base, int badcheck)
 {
-    BDIGIT_DBL num = n;
-    long i = 0;
-    BDIGIT *digits;
-    VALUE big;
+    int positive_p = 1;
+    const char *s, *str;
+    const char *digits_start, *digits_end;
+    size_t num_digits;
+    ssize_t len;
+    VALUE z;
 
-    big = bignew(DIGSPERLL, 1);
-    digits = BDIGITS(big);
-    while (i < DIGSPERLL) {
-	digits[i++] = BIGLO(num);
-	num = BIGDN(num);
+    int digits_per_bdigits_dbl;
+    size_t num_bdigits;
+
+    if (!valid_radix_p(base)) {
+        invalid_radix(base);
+    }
+
+    rb_must_asciicompat(arg);
+    s = str = StringValuePtr(arg);
+    len = RSTRING_LEN(arg);
+    if (len > 0 && *str == '-') {
+	len--;
+        str++;
+        positive_p = 0;
+    }
+
+    digits_start = str;
+    if (!str2big_scan_digits(s, str, base, badcheck, &num_digits, &len))
+	invalid_integer(arg);
+    digits_end = digits_start + len;
+
+    maxpow_in_bdigit_dbl(base, &digits_per_bdigits_dbl);
+    num_bdigits = roomof(num_digits, digits_per_bdigits_dbl)*2;
+
+    z = str2big_gmp(positive_p, digits_start, digits_end, num_digits, num_bdigits, base);
+
+    RB_GC_GUARD(arg);
+
+    return bignorm(z);
+}
+#endif
+
+#if HAVE_LONG_LONG
+
+static VALUE
+rb_ull2big(unsigned LONG_LONG n)
+{
+    long i;
+    VALUE big = bignew(bdigit_roomof(SIZEOF_LONG_LONG), 1);
+    BDIGIT *digits = BDIGITS(big);
+
+#if SIZEOF_BDIGIT >= SIZEOF_LONG_LONG
+    digits[0] = n;
+#else
+    for (i = 0; i < bdigit_roomof(SIZEOF_LONG_LONG); i++) {
+	digits[i] = BIGLO(n);
+	n = BIGDN(n);
     }
+#endif
 
-    i = DIGSPERLL;
+    i = bdigit_roomof(SIZEOF_LONG_LONG);
     while (i-- && !digits[i]) ;
-    RBIGNUM(big)->len = i+1;
+    BIGNUM_SET_LEN(big, i+1);
     return big;
 }
 
-VALUE
-rb_ll2big(n)
-    LONG_LONG n;
+static VALUE
+rb_ll2big(LONG_LONG n)
 {
     long neg = 0;
+    unsigned LONG_LONG u;
     VALUE big;
 
     if (n < 0) {
-	n = -n;
+        u = 1 + (unsigned LONG_LONG)(-(n + 1)); /* u = -n avoiding overflow */
 	neg = 1;
     }
-    big = rb_ull2big(n);
+    else {
+        u = n;
+    }
+    big = rb_ull2big(u);
     if (neg) {
-	RBIGNUM(big)->sign = 0;
+	BIGNUM_SET_NEGATIVE_SIGN(big);
     }
     return big;
 }
 
 VALUE
-rb_ull2inum(n)
-    unsigned LONG_LONG n;
+rb_ull2inum(unsigned LONG_LONG n)
 {
     if (POSFIXABLE(n)) return LONG2FIX(n);
     return rb_ull2big(n);
 }
 
 VALUE
-rb_ll2inum(n)
-    LONG_LONG n;
+rb_ll2inum(LONG_LONG n)
 {
     if (FIXABLE(n)) return LONG2FIX(n);
     return rb_ll2big(n);
@@ -642,265 +4446,721 @@ rb_ll2inum(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_cstr2inum(str, base)
-    const char *str;
-    int base;
+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)
 {
     return rb_cstr_to_inum(str, base, base==0);
 }
 
 VALUE
-rb_str2inum(str, base)
-    VALUE str;
-    int base;
+rb_str2inum(VALUE str, int base)
 {
     return rb_str_to_inum(str, base, base==0);
 }
 
-const char ruby_digitmap[] = "0123456789abcdefghijklmnopqrstuvwxyz";
-VALUE
-rb_big2str0(x, base, trim)
-    VALUE x;
-    int base;
-    int trim;
+static VALUE
+big_shift3(VALUE x, int lshift_p, size_t shift_numdigits, int shift_numbits)
 {
-    volatile VALUE t;
-    BDIGIT *ds;
-    long i, j, hbase;
-    VALUE ss;
-    char *s;
+    BDIGIT *xds, *zds;
+    long s1;
+    int s2;
+    VALUE z;
+    long xn;
+
+    if (lshift_p) {
+        if (LONG_MAX < shift_numdigits) {
+            rb_raise(rb_eArgError, "too big number");
+        }
+        s1 = shift_numdigits;
+        s2 = shift_numbits;
+        xn = BIGNUM_LEN(x);
+        z = bignew(xn+s1+1, BIGNUM_SIGN(x));
+        zds = BDIGITS(z);
+        BDIGITS_ZERO(zds, s1);
+        xds = BDIGITS(x);
+        zds[xn+s1] = bary_small_lshift(zds+s1, xds, xn, s2);
+    }
+    else {
+        long zn;
+        BDIGIT hibitsx;
+        if (LONG_MAX < shift_numdigits || (size_t)BIGNUM_LEN(x) <= shift_numdigits) {
+            if (BIGNUM_POSITIVE_P(x) ||
+                bary_zero_p(BDIGITS(x), BIGNUM_LEN(x)))
+                return INT2FIX(0);
+            else
+                return INT2FIX(-1);
+        }
+        s1 = shift_numdigits;
+        s2 = shift_numbits;
+        hibitsx = abs2twocomp(&x, &xn);
+        xds = BDIGITS(x);
+        if (xn <= s1) {
+            return hibitsx ? INT2FIX(-1) : INT2FIX(0);
+        }
+        zn = xn - s1;
+        z = bignew(zn, 0);
+        zds = BDIGITS(z);
+        bary_small_rshift(zds, xds+s1, zn, s2, hibitsx != 0 ? BDIGMAX : 0);
+        twocomp2abs_bang(z, hibitsx != 0);
+    }
+    RB_GC_GUARD(x);
+    return z;
+}
 
-    if (FIXNUM_P(x)) {
-	return rb_fix2str(x, base);
+static VALUE
+big_shift2(VALUE x, int lshift_p, VALUE y)
+{
+    int sign;
+    size_t lens[2];
+    size_t shift_numdigits;
+    int shift_numbits;
+
+    assert(POW2_P(CHAR_BIT));
+    assert(POW2_P(BITSPERDIG));
+
+    if (BIGZEROP(x))
+        return INT2FIX(0);
+    sign = rb_integer_pack(y, lens, numberof(lens), sizeof(size_t), 0,
+        INTEGER_PACK_LSWORD_FIRST|INTEGER_PACK_NATIVE_BYTE_ORDER);
+    if (sign < 0) {
+        lshift_p = !lshift_p;
+        sign = -sign;
+    }
+    if (lshift_p) {
+        if (1 < sign || CHAR_BIT <= lens[1])
+            rb_raise(rb_eRangeError, "shift width too big");
+    }
+    else {
+        if (1 < sign || CHAR_BIT <= lens[1])
+            return BIGNUM_POSITIVE_P(x) ? INT2FIX(0) : INT2FIX(-1);
     }
-    i = RBIGNUM(x)->len;
-    if (BIGZEROP(x)) {
-	return rb_str_new2("0");
-    }
-    if (i >= LONG_MAX/SIZEOF_BDIGITS/CHAR_BIT) {
-	rb_raise(rb_eRangeError, "bignum too big to convert into `string'");
-    }
-    j = SIZEOF_BDIGITS*CHAR_BIT*i;
-    switch (base) {
-      case 2: break;
-      case 3:
-	j = j * 53L / 84 + 1;
-	break;
-      case 4: case 5: case 6: case 7:
-	j = (j + 1) / 2;
-	break;
-      case 8: case 9:
-	j = (j + 2) / 3;
-	break;
-      case 10: case 11: case 12: case 13: case 14: case 15:
-	j = j * 28L / 93 + 1;
-	break;
-      case 16: case 17: case 18: case 19: case 20: case 21:
-      case 22: case 23: case 24: case 25: case 26: case 27:
-      case 28: case 29: case 30: case 31:
-	j = (j + 3) / 4;
-	break;
-      case 32: case 33: case 34: case 35: case 36:
-	j = (j + 4) / 5;
-	break;
-      default:
-	rb_raise(rb_eArgError, "illegal radix %d", base);
-	break;
-    }
-    j++;			/* space for sign */
-
-    hbase = base * base;
-#if SIZEOF_BDIGITS > 2
-    hbase *= hbase;
-#endif
-
-    t = rb_big_clone(x);
-    ds = BDIGITS(t);
-    ss = rb_str_new(0, j+1);
-    s = RSTRING(ss)->ptr;
-
-    s[0] = RBIGNUM(x)->sign ? '+' : '-';
-    TRAP_BEG;
-    while (i && j > 1) {
author	Alan Wu <XrXr@users.noreply.github.com>	2021-09-27 14:54:09 -0400
committer	Alan Wu <XrXr@users.noreply.github.com>	2021-10-20 18:19:41 -0400
commit	5c15850ea622d8ad86fa14cb5b9ba6f03abb232e (patch)
tree	73f43455c66579d555509c9d96c9868400bca19e /tool/m4/ruby_func_attribute.m4
parent	9dce2d51326c7db947507f32a9d33a0d22bbafbd (diff)