Your package linbox failed to build from source in current rawhide. https://koji.fedoraproject.org/koji/taskinfo?taskID=17735384 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
Created attachment 1253000 [details] build.log
Created attachment 1253001 [details] root.log
Created attachment 1253002 [details] state.log
jjames's linbox-1.4.2-6.fc26 completed http://koji.fedoraproject.org/koji/buildinfo?buildID=846678
Fixed in Rawhide.