During a testbuild of libxklavier-1.02-3 in mock, the rebuild process stops with the following error: checking for X... no configure: error: The path /usr/X11R6/lib/X11/xkb does not denote the directory error: Bad exit status from /var/tmp/rpm-tmp.4881 (%build) This problem seems to be present in rawhide as well. Adding XFree86-devel to the BuildRequires: list should fix this issue.
Fixed in rawhide, now.