Bug #21120 regressed a few years back when we went to modular and I never actually got around to fixing it until recently. Upstream bug report has the patch which applies to current git and should also apply cleanly to current xkeyboard-config in cvs.
Let's track it upstream till it's committed to make sure the patch is correct, then we can reopen the Gentoo bug and add it here. I CC'd myself on the upstream bug.
committed upstream.
Since this was committed in December, it should've been in 1.2 released in January. Marking fixed.