http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58938
Rafał Rawicki <rafal at rawicki dot org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rafal at rawicki dot org --- Comment #3 from Rafał Rawicki <rafal at rawicki dot org> --- This is a regression, because a more specific _GLIBCXX_ATOMIC_BUILTINS_4 was defined (but is no longer available) and now there is defined ATOMIC_INT_LOCK_FREE=1 (I think think the definition is correct, because there were available _GLIBCXX_ATOMIC_BUILTINS_{1,2,4} and no _GLIBCXX_ATOMIC_BUILTINS_8). The other thing is, std::exception_ptr availability should not depend on the fact whether the platform has lock-free atomics or not.