Changelog for libmp3lame-devel-3.99.5-3.1.x86_64.rpm :

* Thu Mar 02 2017 jengelhAATTinai.de- Rename %soname to %sover to better reflect its use.- Replace goals with what the software really does.
* Sat Jun 20 2015 olafAATTaepfle.de- Add patch for SSE- Add check for invalid input sample rate- Avoid malformed wav causing floating point exception (integer divide by zero)- Fix warning on 64 bit machines. Explicitely set variables as unsigned ints.- Enable functions with SSE instructions to maintain their own properly aligned stack- Fix decision if sample rate ratio is an integer value or not- run autoreconf, set GTK_CFLAGS- Add patch to remove ansi2knr instead of using sed