Apply msys2 patches
This MR applies a few patches for mingw-w64 from the msys2 project. See: https://github.com/Alexpux/MINGW-packages/tree/master/mingw-w64-poppler
This MR applies a few patches for mingw-w64 from the msys2 project. See: https://github.com/Alexpux/MINGW-packages/tree/master/mingw-w64-poppler