Your package glm failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=6973414 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
Created attachment 904906 [details] build.log
Created attachment 904907 [details] root.log
Created attachment 904908 [details] state.log
Fixed in glm-0.9.5.2-3.fc21