CCFLAGS.extend( ['-O3','-funroll-loops','-march=nocona','-mtune=nocona','-mfpmath=sse', '-msse3', '-msse2', '-msse'])
CXXFLAGS.extend( ['-O3','-march=nocona','-mtune=nocona','-funroll-loops','-mfpmath=sse', '-msse3', '-msse', '-msse2'])
CPPFLAGS.extend( ['-O3','-march=nocona','-mtune=nocona','-funroll-loops','-mfpmath=sse', '-msse3', '-msse', '-msse2'])