Your package ktechlab failed to build from source in current rawhide.
For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
Created attachment 906018 [details]
Created attachment 906019 [details]
Created attachment 906020 [details]
Created attachment 910174 [details]
Patch for rawhide
The autotools patch needed updating for automake-1.14, and then there was an API change in gpsim-0.27. Patch for rawhide attached.