* Include a header that Arch Linux ships as well
* Update build to latest standards

	renamed:    libs_audio/a52dec/a52dec-0.7.5-cvs-optflags.patch.xz -> libs_audio/liba52/a52dec-0.7.5-cvs-optflags.patch.xz
	renamed:    libs_audio/a52dec/liba52.build -> libs_audio/liba52/liba52.build