Import libcxxrt 47661d00cd4d6cd728ae31b0bb29a49a6c06272aThe repository moved to https://github.com/libcxxrt/libcxxrt in the meantime, but keep it on the same branch as before. This primarily bringsC++14 support.
branches: 1.1.1.1.2; 1.1.1.1.8;Import libcxxrt b2396b5945d7a2697c4762c3e52dc6f732b2eebd fromhttps://github.com/pathscale/libcxxrt/.