On Mon, Jan 11, 2010 at 21:26, Rene Gollent <anevilyak@xxxxxxxxx> wrote: > On Mon, Jan 11, 2010 at 3:24 PM, François Revol <revol@xxxxxxx> wrote: >> You might want to try with -mtune as well... >> > > That's gcc4 only no? > yup, gcc2 uses -march, -mcpu gcc4 uses -march, -mtune. --mmadia