Ronald van Haren wrote: > >> Also gcc-3.4 didn't know about x86_64 so that is a no go for >> -march/-mtune. >> > I didn't know that. I thought it had something to do with the build > machine. Thanks for clarifying that. > > To correct myself... gcc-3.4 knows x86-64 not x86_64 so you can't just use $CARCH. Allan