Commit d6d7b539682abb50b04207abd21726573c0fb845
2016-11-21T22:58:18
AppVeyor: Use built-in MSYS2 MinGW compilers AppVeyor already has MinGW32 and MinGW64 flavors of GCC 5.3.0 installed under MSYS2, so there is no need to install our own builds of MinGW. MinGW-builds is no longer an active project, and we were getting occasional timeouts while wgetting those files from SourceForge. Furthermore, GCC 5.3.0 should produce faster code than GCC 4.8.1.