On Tue, 10 Jun 2008, H.J. Lu wrote: > On Tue, Jun 10, 2008 at 02:27:17PM +0200, Paolo Carlini wrote: > > Joseph S. Myers wrote: > >> I hold that it is a bug that i686-* tools default to -march=i386 instead > >> of -march=i686 (whereas e.g. sparcv9-* tools default to -mcpu=sparcv9, and > >> -mcpu means -march for SPARC). > > Seconded. > > > > What arch should be used for -m32 on x86-64? Personally, I think > it should be at least i686, if not SSE2.
-march=x86-64, I'd say, if you're configuring as x86_64-* (so assuming those 32-bit features present on all 64-bit processors). Obviously, subject to override from --with-arch-32 or --with-arch. -- Joseph S. Myers [EMAIL PROTECTED]
