http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56771
--- Comment #2 from Joel Sherrill <joel at gcc dot gnu.org> 2013-03-28 20:12:06 UTC --- Created attachment 29748 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29748 Full build log In case there is something useful in the build log. Host: CentOS 6.4. FYI We first saw this back in Oct 2012. But could not reproduce it on another machine. I believe it has now been reproduced on 32-bit CentOS and Ubuntu hosts.