Commit 7fd7c5eff3ba25abc55cad3491a952cdbf879df8
2019-06-02T20:20:02
Fix detection of the __has_attribute() for apple clang [ci skip] Fixes build on the next osx env: - Mac OS 10.9/clang 600 - Mac OS 10.8/clang 500 Refs: https://github.com/libevent/libevent/issues/447#issuecomment-497908488 (cherry picked from commit 7d569b0fafe76e9036695ccc9d22d2195c214bce)