Your package xxdiff failed to build from source in current rawhide.
For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
Created attachment 906737 [details]
Created attachment 906738 [details]
Created attachment 906739 [details]
Created attachment 908677 [details]
Patch for rawhide
Cause was incompatibility with bison-3.x, as reported upstream:
Patch for rawhide attached.