http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51296
--- Comment #23 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> 2012-01-12 18:17:56 UTC --- > Does adding 'noexcept' to ~__mutex_base() make that hack unnecessary? > > The destructor should be implicitly noexcept, but G++ doesn't implement that > yet (PR 50043) so adding 'noexcept' there is ok. Yep, that does the trick. Rainer