Vaporeon [1] filed a deletion request for mingw-w64-directx-headers- cmake [2]:
The cmake config is now provided by mingw-w64-directx-headers, so this package can be removed. [1] https://aur.archlinux.org/account/Vaporeon/ [2] https://aur.archlinux.org/pkgbase/mingw-w64-directx-headers-cmake/
