libXext6
	provides "xorg-x11-libXext-<targettype> = 7.6_<version>"
	obsoletes "xorg-x11-libXext-<targettype> < 7.6_<version>"
libXext-devel
	requires -libXext-<targettype>
	requires "libXext6-<targettype> = <version>"
	provides "xorg-x11-libXext-devel-<targettype> = 7.6_<version>"
	obsoletes "xorg-x11-libXext-devel-<targettype> < 7.6_<version>"