ruby-dev

えぐち＠エスアンドイー です。

>>> On Tue, 26 Jan 1999 15:17:38 +0900, WATANABE Hirofumi <watanabe@ase.ptg.sony.co.jp> said:

watanabe> わたなべです.
watanabe> 
watanabe> EGUCHI Osamu <eguchi@shizuokanet.ne.jp> writes:
watanabe> 
watanabe> :gotoken> この #if lhs == rhs というのはどのプリプロセッサにも
watanabe> :gotoken> あると思っていいのですね??

watanabe> :手元に、K&R が見当たらないので、どなたか
watanabe> :ヘルプねがいます _o_
watanabe> 
watanabe> そのあたりは確か大丈夫だった気がするけど,
watanabe> #elif, defined もすでに使ってるし(K&R ではほんとはだめ),
watanabe> 現実的には sun4 cc で通れば ok ぐらいでいいと思います.
watanabe> 今のとこ 1.2.2 は sun4 cc で ok.

と聞いて 1.3 を sunos4.1.4_jl の cc でコンパイルしましたが、

  cc -g -I. -I. -I/usr/local/include  -c eval.c
  "eval.c", line 4580: illegal function
  make: *** [eval.o] Error 1

となりました。
1.3 では、 rb_load() と言う関数が出来ましたので、
これがラベル rb_load: と衝突しているようです。
ANSI だと関数とラベルの名前空間は別なので、
こういう非互換もあるのですね。

あと

  cc -g -I. -I. -I/usr/local/include  -c gc.c
  "gc.c", line 396: void function rb_gc_mark cannot return value
  "gc.c", line 396: void type illegal in expression
  "gc.c", line 863: warning: & before array or function: ignored
  make: *** [gc.o] Error 1

は型が void な gc_mark() が値を返しているので、
、、本当のバグなのかも知れない、、

＃ SunCC って void も enum もあるので、古い CC とは言いがたい？！

1.3 へのパッチ添付します

	えぐち

Attachments (1)

suncc.diff (1.12 KB, text/x-diff)

diff -rud ruby-1.3/eval.c suncc/eval.c
--- ruby-1.3/eval.c	Thu Dec 24 18:28:47 1998
+++ suncc/eval.c	Tue Jan 26 16:01:50 1999
@@ -4509,7 +4509,7 @@
 	if (strcmp(".rb", ext) == 0) {
 	    feature = file = RSTRING(fname)->ptr;
 	    file = find_file(file);
-	    if (file) goto rb_load;
+	    if (file) goto label_rb_load;
 	}
 	else if (strcmp(".so", ext) == 0 || strcmp(".o", ext) == 0) {
 	    file = feature = RSTRING(fname)->ptr;
@@ -4536,7 +4536,7 @@
     if (file) {
 	fname = rb_str_new2(file);
 	feature = buf;
-	goto rb_load;
+	goto label_rb_load;
     }
     strcpy(buf, RSTRING(fname)->ptr);
     strcat(buf, DLEXT);
@@ -4569,7 +4569,7 @@
 #endif
     return Qtrue;
 
-  rb_load:
+  label_rb_load:
 #ifdef USE_THREAD
     if (rb_thread_loading(feature)) return Qfalse;
     else {
diff -rud ruby-1.3/gc.c suncc/gc.c
--- ruby-1.3/gc.c	Thu Dec 24 14:00:20 1998
+++ suncc/gc.c	Tue Jan 26 16:04:59 1999
@@ -393,7 +393,8 @@
     obj->as.basic.flags |= FL_MARK;
 
     if (FL_TEST(obj, FL_EXIVAR)) {
-	return rb_mark_generic_ivar((VALUE)obj);
+	rb_mark_generic_ivar((VALUE)obj);
+	return;
     }
 
     switch (obj->as.basic.flags & T_MASK) {

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