[opensuse-buildservice] Xgl build fails for factory

Here is the error with which it exits. checking if gcc -E requires -undef... gcc: no input files gcc: no input files configure: error: gcc -E defines unix with or without -undef. I don't know what to do. error: Bad exit status from /var/tmp/rpm-tmp.46657 (%build) I see the same error in xorg7 project too. Any suggestions? Thanks -J