http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49287
--- Comment #4 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2011-06-05 14:14:44 UTC --- The patch in http://gcc.gnu.org/ml/gcc-patches/2011-06/msg00328.html fixes this pr on x86_64-apple-darwin10. Thanks for the quick fix.