Changelog for gf2x-debugsource-1.1-13.1.x86_64.rpm :

* Fri Jun 26 2015 jengelhAATTinai.de- Disable SSE2 on x86 because it is not necessarily present- Add gf2x-memset.diff
* Thu Nov 29 2012 jengelhAATTinai.de- Update to new upstream release 1.1
* trap bad arguments to gf2x_tfft_init
* Thu Sep 15 2011 jengelhAATTmedozas.de- Initial package (version 1.0) for build.opensuse.org