Your package isdn4k-utils failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=6988448 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
Created attachment 905356 [details] build.log
Created attachment 905357 [details] root.log
Created attachment 905358 [details] state.log
it's fixed in isdn4k-utils-3.2-97.fc21, http://koji.fedoraproject.org/koji/taskinfo?taskID=7054458