Giulio Martinat - 2011-03-31

When turning off the -O2 optimization option, MT compilation fails with the following error:
../src/zmm/atomic.h: Assembler messages:
../src/zmm/atomic.h:81: Error: bad register name `%sil'
Conditional  compilation maybe needed in the customized version of atomic.h. Please, see this thread in FedoraForums.org:
http://forums.fedoraforum.org/showthread.php?t=260722 for reference