nobu	2009-10-11 09:04:10 +0900 (Sun, 11 Oct 2009)

  New Revision: 25294

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=25294

  Log:
    * include/ruby/ruby.h (RB_GC_GUARD_PTR): workaround for gcc
      optimization.

  Modified files:
    trunk/ChangeLog
    trunk/include/ruby/ruby.h

Index: include/ruby/ruby.h
===================================================================
--- include/ruby/ruby.h	(revision 25293)
+++ include/ruby/ruby.h	(revision 25294)
@@ -387,7 +387,13 @@
 static inline int rb_type(VALUE obj);
 #define TYPE(x) rb_type((VALUE)(x))
 
-#define RB_GC_GUARD(v) (*(volatile VALUE *)&(v))
+#ifdef __GNUC__
+#define RB_GC_GUARD_PTR(ptr) \
+    __extension__ ({volatile VALUE *rb_gc_guarded_ptr = (ptr); rb_gc_guarded_ptr;})
+#else
+#define RB_GC_GUARD_PTR(ptr) (volatile VALUE *)(ptr)
+#endif
+#define RB_GC_GUARD(v) (*RB_GC_GUARD_PTR(&(v)))
 
 void rb_check_type(VALUE,int);
 #define Check_Type(v,t) rb_check_type((VALUE)(v),t)
Index: ChangeLog
===================================================================
--- ChangeLog	(revision 25293)
+++ ChangeLog	(revision 25294)
@@ -1,5 +1,8 @@
-Sun Oct 11 08:48:14 2009  Nobuyoshi Nakada  <nobu@r...>
+Sun Oct 11 09:04:08 2009  Nobuyoshi Nakada  <nobu@r...>
 
+	* include/ruby/ruby.h (RB_GC_GUARD_PTR): workaround for gcc
+	  optimization.
+
 	* include/ruby/ruby.h (ruby_exec_node): declared.
 
 Sun Oct 11 03:10:50 2009  NARUSE, Yui  <naruse@r...>

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