Manually Require fontconfig and freetype
    
    These are referenced from cairo.pc file, so they have to be installed
    for pkg-config to work. Since commit 90dd92, fontconfig and freetype are
    both delay-loaded and that causes rpm to not generate automatic
    mingw32(...) and mingw64(...) deps on them.
    
    This is a case where automatic mingw pkg-config deps would be handy.