https://issues.dlang.org/show_bug.cgi?id=14617
--- Comment #9 from github-bugzi...@puremagic.com --- Commits pushed to master at https://github.com/D-Programming-Language/druntime https://github.com/D-Programming-Language/druntime/commit/ab78a534dc017efecbe86f79f5d4559b85ef8619 fix issue 14617 - Define correct values for PTHREAD_MUTEX_INITIALIZER and PTHREAD_ONCE_INIT. https://github.com/D-Programming-Language/druntime/commit/19f3f0db648b6361248e2c53e00fcb3794c2521b Merge pull request #1285 from schveiguy/pthreadmutexosx Fix issue 14617 - PTHREAD_MUTEX_INITIALIZER does not work on OSX --