File baselibs.conf of Package libXau
libXau6 provides "xorg-x11-libXau-<targettype> = 7.6_<version>" obsoletes "xorg-x11-libXau-<targettype> < 7.6_<version>" libXau-devel requires -libXau-<targettype> requires "libXau6-<targettype> = <version>" provides "xorg-x11-libXau-devel-<targettype> = 7.6_<version>" obsoletes "xorg-x11-libXau-devel-<targettype> < 7.6_<version>"