Author: enygmata
Contributors: radius
This build is not supported by the RetroArch developers.
This little tutorial will help you build RetroArch for Windows bundled with most of the features available for this platform. The advantage of this build over the official ones is that it doesn't require tweaking anything and RetroArch will use more up to date libraries.
It is called pure MSYS2 and Unix-like because it uses the same build commands as the Unix-inspired systems and and the development files provided by MSYS2 instead of the ones available in the official compilation guide.