Your package octave failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=12846173 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_24_Mass_Rebuild
Created attachment 1125494 [details] build.log
Created attachment 1125495 [details] root.log
Created attachment 1125496 [details] state.log
Filed upstream. This appears to be a gnulib issue: https://lists.gnu.org/archive/html/bug-gnulib/2016-02/msg00005.html
orion's octave-4.0.0-13.fc24 completed http://koji.fedoraproject.org/koji/buildinfo?buildID=737524