- Restore multilib devel goodness patch (make allegro-devel i386 and x86_64
        parallel installable)
    - Restore execstack patch so that binaries linked against allegro do not
        require an execstack and thus work under selinux (without this
        liballeg_unshareable.a contains object files which require an
        executable stack which will end up in any app linked against allegro)
    - Make alleg-dga2.so plugin 100% PIC so it can load with selinux enabled
    - Mark alleg-vga.so plugin as textrel_shlib_t as it isn't 100% PIC and
        cannot be fixed (easily) to be 100% PIC