I've committed this, if I've broken anything for non-POSIX platforms there will be time to fix it before 4.7
- [v3] libstdc++/50196 - enable std::thread, std::mutex etc.... Jonathan Wakely
- Re: [v3] libstdc++/50196 - enable std::thread, std::m... Jonathan Wakely
- Re: [v3] libstdc++/50196 - enable std::thread, st... Jonathan Wakely
- Re: [v3] libstdc++/50196 - enable std::thread... Jonathan Wakely
- Re: [v3] libstdc++/50196 - enable std::th... Jonathan Wakely
- Re: [v3] libstdc++/50196 - enable st... Iain Sandoe
- Re: [v3] libstdc++/50196 - enabl... Jonathan Wakely