ruby-dev

３月の末に AC_C_CONST の追加をお願いした、
えぐち＠エスアンドイー です。

>>> In message [ruby-dev:6836] gcc -traditional or -ansi (Re: Ruby 1.3.3-990513)
    On Mon, 17 May 1999 13:01:56 +0900, Katsuyuki Komatsu <komatsu@sarion.co.jp> said:

小松> 小松です。
小松> 
小松> In the message of [ruby-dev:6791] Re: Ruby 1.3.3-990513 
小松>     on 1999/5/13 23:21:38 itojun@iijlab.net wrote:
小松> >>    __constってどうしていままで通ってたんだろうと思ったら、
小松> >>    gccならOKなんですね。
小松> >
小松> >	AC_C_CONST(だっけ)して、constを使うべきです。
小松> 
小松> なるほど、gccのalternative keywordsというものでしたか。
小松>     http://docs.freebsd.org/info/gcc/gcc.info.Alternate_Keywords.html
小松> 勉強になりました。
小松> 
小松> gcc.infoでは__const__になってますが、gcc-2.8.1/c-parse.gperfを
小松> みると両方サポートしていますね。

Subject: に反応して、 FreeBSD で CC='gcc -ansi' で make
してみましたら、下のように、 KEYWORDS から生成した lex.c に
エラーを生じました。

 % make CC=gcc\ -ansi
 gcc -ansi -g -O2 -I. -I../ruby -I/usr/local/include  -c ../ruby/array.c
  :
 bison -y -d ../ruby/parse.y
 gcc -ansi -g -O2 -I. -I../ruby -I/usr/local/include -c y.tab.c -o parse.o
 In file included from ../ruby/parse.y:2393:
 ../ruby/lex.c:15: syntax error before `static'
 ../ruby/lex.c:54: syntax error before `struct'
 *** Error code 1

調べたところ、

 % head -2 ../ruby/lex.c
 /* C code produced by gperf version 2.5 (GNU C++ version) */
 /* Command-line: gperf -p -j1 -i 1 -g -o -t -N rb_reserved_word -k1,3,$ keywords  */

ということで、 gperf のバージョンが若干古いからの様です。
＃生成するコードの質は const を使う以外変わらない様です。

手元にあるのは、GNU gperf 2.7 でこれなら、 -ansi も通りました。

   #ifdef __GNUC__
  -inline
  +__inline
   #endif
   static unsigned int
   hash (str, len)

これだけの差なんですが、、
、、ううむ、これも Alternate Keyword 関係ですね。

	えぐち

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[#6700] [PATCH] Ruby 1.3.3-990430 — Katsuyuki Komatsu <komatsu@...>

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[#6744] Socket.getaddrinfo — Katsuyuki Komatsu <komatsu@...>

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[#6783] Re: Ruby 1.3.3-990507 — 助田 雅紀 <masaki.suketa@...>

[#6786] mkmf.rb have_library の振る舞い — Hisakuni FUJIMOTO <hisa@...>

[#6789] Ruby 1.3.3-990513 — Yukihiro Matsumoto <matz@...>

[#6796] {0,2}(regex.c), nonzero?(numeric.c), random — akendo@...3.rim.or.jp

[#6797] [patch] $RUBYLIB — Minero Aoki <aamine@...>

[#6799] [bug?] "\e$B" =~ /\e$B/n — Shugo Maeda <shugo@...>

[#6833] regex.c comment — Katsuyuki Komatsu <komatsu@...>

[#6841] Re: Ruby 1.3.3-990513 — 助田 雅紀 <masaki.suketa@...>

[#6844] Re: Range(...) as Array index — Inaba Hiroto <inaba@...>

[#6856] Re: Ruby 1.3.3-990513 — 助田 雅紀 <masaki.suketa@...>

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[#6865] [PATCH mswin32] ruby-1.3.3-990513 — KIMURA Koichi <kbk@...>

[#6867] Re: Ruby 1.3.3-990513 — 助田 雅紀 <masaki.suketa@...>

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[#6883] Re: Segmentation Fault on ruby-1.2.5 for Win32(Cygwin) — WATANABE Hirofumi <watanabe@...>

[#6891] Ruby 1.3.3-990518 — Yukihiro Matsumoto <matz@...>

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[#6917] [bug] GetoptLong#quiet — Shugo Maeda <shugo@...>

[#6919] ext/socket/getaddrinfo.c tiny fix — Jun-ichiro itojun Hagino <itojun@...>

[#6930] alpha gcc bug? — Shugo Maeda <shugo@...>

[#6949] socket for rubymw — Koji Oda <oda@...1.qnes.nec.co.jp>

[#6951] RE: socket for rubymw — 助田 雅紀 <masaki.suketa@...>

[#6953] RString#len — Shugo Maeda <shugo@...>

[#6954] [PATCH] ext/Win32API/Win32API.c — WATANABE Hirofumi <eban@...>

[#6955] [PATCH] ext/pty/pty.c for cygwin — WATANABE Hirofumi <eban@...>

[#6957] #include "ruby.h" — ARIMA Yasuhiro <fit0298@...>

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[#7000] IOError in threading — Masaki Fukushima <fukusima@...>

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[#7024] [PATCH] ruby 1.3.3 990525 for djgpp — WATANABE Hirofumi <eban@...>

[#7025] [PATCH] open3.rb — WATANABE Hirofumi <eban@...>

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[#7034] Ruby 1.3.4-990531 — Yukihiro Matsumoto <matz@...>

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[#7036] patch for OS/2 — kenn@...

[ruby-dev:6837] Re: gcc -traditional or -ansi (Re: Ruby 1.3.3-990513)

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[#6783] Re: Ruby 1.3.3-990507 — 助田　雅紀 <masaki.suketa@...>

[#6841] Re: Ruby 1.3.3-990513 — 助田　雅紀 <masaki.suketa@...>

[#6856] Re: Ruby 1.3.3-990513 — 助田　雅紀 <masaki.suketa@...>

[#6867] Re: Ruby 1.3.3-990513 — 助田　雅紀 <masaki.suketa@...>

[#6871] socket(RE:( Re: [PATCH mswin32] ruby-1.3.3-990513) — 助田　雅紀 <masaki.suketa@...>

[#6879] Re: Ruby 1.3.3-990513 — 助田　雅紀 <masaki.suketa@...>

[#6951] RE: socket for rubymw — 助田　雅紀 <masaki.suketa@...>