https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70554
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- Author: redi Date: Tue Apr 5 19:03:46 2016 New Revision: 234761 URL: https://gcc.gnu.org/viewcvs?rev=234761&root=gcc&view=rev Log: Restore atomic builtins usage in libstdc++-v3 PR libstdc++/70554 * acinclude.m4 (GLIBCXX_ENABLE_ATOMIC_BUILTINS): Don't test __atomic_fetch_add for bool. * configure: Regenerate. Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/acinclude.m4 trunk/libstdc++-v3/configure