--- a/configure	Wed May 11 19:21:19 2011 +1000
+++ b/configure	Fri Dec 16 10:08:45 2011 +1000
@@ -8203,7 +8203,7 @@
 int __attribute__((noinline)) foo( int arg, void *exc )
 {
     if( arg < 2 ) {
-        *(((void **)__builtin_frame_address(0))+1) = exc;
+        *(((void * volatile *)__builtin_frame_address(0))+1) = exc;
     }
     return 0;
 }