http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52839
--- Comment #38 from Alan Modra <amodra at gmail dot com> 2012-11-02 02:39:29 UTC --- Ah, the #c3 fail on powerpc was due to a powerpc glibc pthread_once bug. And comment #36 should have read: ..previous test was for *either* atomic bool or atomic int.
