https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78663
--- Comment #7 from Maxim Ostapenko <m.ostapenko at samsung dot com> --- Created attachment 40646 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40646&action=edit Fix 2 Iain, could you test the following patch? This one is likely to be applied upstream. As a side note, LLVM folks are not very happy with these patches (they lack of buildbots to test them). Thus I suspect that for future releases we'll need a) apply Darwin 10 patches locally or b) disable ASan for Darwin 10.