Merge branch 'mh/fix-detect-compilers-with-nondigit-versions'

The detect-compilers script to help auto-tweaking the build system had trouble working with compilers whose version number has extra suffixes. The script has been taught that certain suffixes (like "-win32" in "gcc 10-win32") can be safely stripped as they share the same features and bugs with the version without the suffix. * mh/fix-detect-compilers-with-nondigit-versions: Handle some compiler versions containing a dash