On Wed, Apr 20, 2011 at 5:27 PM, Jussi Lehtola wrote: > x86_64: plain and sse2 This does not look good to me, because the x86-64 instruction set only includes sse2. sse3 is not available on every amd64 processor and thus should not be used by default. The maintainer should rather build the base package for sse2 and create an sse3 optimized subpackage atlas-sse3. Otherwise illegal instruction errors can occur unexpectedly. ~C -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel