vm.c: suppress warnings

* vm.c (vm_invoke_proc, vm_exec), vm_eval.c (rb_eval_cmd): add
  volatile to suppress -Wclobbered warnings by gcc 4.9.0.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40760 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/vm_eval.c b/vm_eval.c
index b4efcdb162..3f52c43e3b 100644
--- a/vm_eval.c
+++ b/vm_eval.c
@@ -1432,7 +1432,7 @@ VALUE
 rb_eval_cmd(VALUE cmd, VALUE arg, int level)
 {
     int state;
-    VALUE val = Qnil;		/* OK */
+    volatile VALUE val = Qnil;		/* OK */
     volatile int safe = rb_safe_level();
 
     if (OBJ_TAINTED(cmd)) {