2 files changed, 14 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index a72901801d..2f3af684c1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+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.
diff --git a/parse.y b/parse.y
index 54b1dcebd4..33c1b6a0e4 100644
--- a/parse.y
+++ b/parse.y
@@ -2467,6 +2467,10 @@ terms		: term
 none		: /* none */ {$$ = 0;}
 		;
 %%
+#ifdef yystacksize
+#undef YYMALLOC
+#endif
+
 #include "regex.h"
 #include "util.h"
 
@@ -5756,7 +5760,12 @@ ruby_parser_stack_on_heap()
 void
 rb_gc_mark_parser()
 {
+#if defined YYMALLOC
     rb_gc_mark((VALUE)parser_heap);
+#elif defined yystacksize
+    if (yyvsp) rb_gc_mark_locations((VALUE *)yyvs, (VALUE *)yyvsp);
+#endif
+
     if (!ruby_in_compile) return;
 
     rb_gc_mark_maybe((VALUE)yylval.node);