http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58366
--- Comment #4 from Jonathan Coe <jbcoe at me dot com> --- Yes, I've built on OS X 10.8.4 using a macports build of GCC 4.8.1. I've tried adding -pthread when building - it makes no difference to the crashing. 19 of 20 runs on my machine crash. I think if you managed 10-20 runs without a crash I think that the bug does not exist on your machine.