Your package m4 failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=10112283 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild
Created attachment 1047310 [details] build.log
Created attachment 1047311 [details] root.log
Created attachment 1047312 [details] state.log
Upstream patch: http://lists.gnu.org/archive/html/bug-gnulib/2015-07/msg00009.html