The /usr/X11R6/lib/X11/xkb symlink is broken. It should link to ../../xkb instead of ../../lib/xkb.
Hrm. Forget that report. There's something other wrong: The /usr/X11R6/lib/X11/xkb/xkb should be /usr/X11R6/lib/X11/xkb. Seems that somehow the old /usr/X11R6/lib/X11/xkb didn't get removed. So "dosym ../../lib/xkb /usr/X11R6/lib/X11/xkb" made an xbd symlink inside xkb. But that problem should be fixed now on new installs: # Get rid of the directory if it's not a symlink [ ! -L ${ROOT}usr/X11R6/$(get_libdir)/X11/xkb ] \ && rmdir ${ROOT}usr/X11R6/$(get_libdir)/X11/xkb