Squashed 'cmake/CheckCXX11Features/' content from commit f02f029

git-subtree-dir: cmake/CheckCXX11Features
git-subtree-split: f02f029713934b5223c3eade74f404fa9cd4a0fd
Merge commit '8fa645332acafddda838aeaf0e4b769a202254bb' as 'cmake/CheckCXX11Features'