merges r30641 from trunk into ruby_1_9_2.

--
* error.c (rb_invalid_str): prevent intermediate variable from GC.
  [ruby-core:34820]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@30692 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/error.c b/error.c
index 350cb018a6..c519d0c4ca 100644
--- a/error.c
+++ b/error.c
@@ -927,7 +927,7 @@ nometh_err_args(VALUE self)
 void
 rb_invalid_str(const char *str, const char *type)
 {
-    VALUE s = rb_str_inspect(rb_str_new2(str));
+    volatile VALUE s = rb_str_inspect(rb_str_new2(str));
 
     rb_raise(rb_eArgError, "invalid value for %s: %s", type, RSTRING_PTR(s));
 }