merges r23371 from trunk into ruby_1_9_1.

--
* vm_eval.c (rb_f_catch): gets rid of issue with gcc 4.4.  a patch
  from Alexey Froloff in [ruby-core:23398].  [ruby-core:22924]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@23515 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/vm_eval.c b/vm_eval.c
index aaef1c71ae..0ec847882a 100644
--- a/vm_eval.c
+++ b/vm_eval.c
@@ -1232,7 +1232,7 @@ rb_f_catch(int argc, VALUE *argv)
 {
     VALUE tag;
     int state;
-    VALUE val = Qnil;		/* OK */
+    volatile VALUE val = Qnil;		/* OK */
     rb_thread_t *th = GET_THREAD();
     rb_control_frame_t *saved_cfp = th->cfp;