On Sun, Jan 09, 2005 at 11:03:28AM +0100, Andreas Jaeger wrote: > +# if __GNUC_PREREQ (4,0) > +typedef float La_x86_64_xmm __attribute__ ((vector_size (16))); > +# else > typedef float La_x86_64_xmm __attribute__ ((__mode__ (__V4SF__))); > +# endif If you're going to be namespace-safe, you should use __vector_size__. r~