https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64368
--- Comment #21 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- > On x86_64-apple-darwin14, the failures are now reduced to... > FAIL: 22_locale/conversions/string/2.cc execution test > FAIL: 23_containers/unordered_map/requirements/explicit_instantiation/2.cc > (test for excess errors) > FAIL: 23_containers/unordered_map/requirements/explicit_instantiation/4.cc > (test for excess errors) > FAIL: 30_threads/shared_lock/cons/1.cc (test for excess errors) > ... Confirmed, thanks for the fix. The first failure is covered by pr64797, the 23_containers/* failures are covered by pr64813, and I'll open a new PR for the remaining ones ASAP. I am waiting for feedback from the other platforms before closing the PR as FIXED.