Changelog for ustl-2.1-4.fc21.x86_64.rpm :
Mon Aug 18 14:00:00 2014 Fedora Release Engineering - 2.1-4
- Rebuilt for https://fedoraproject.org/wiki/Fedora_21_22_Mass_Rebuild

Fri Aug 8 14:00:00 2014 Yaakov Selkowitz - 2.1-3
- Remove -march=native
- Disable SSE on ix86 (not supported by default optflags)

Tue Jul 29 14:00:00 2014 Christopher Meng - 2.1-2
- Fix library location on lib64 system.

Tue Jan 21 13:00:00 2014 Christopher Meng - 2.1-1
- Initial Package.