On Wed, Aug 29, 2007 at 09:43:35PM -0400, Statux wrote

> CFLAGS="-march=prescott -O2 -pipe"
> CHOST="i686-pc-linux-gnu"
> 
> which is what I use on my 531 Prescott (the pni cpuflag indicates
> Prescott or compatible)

  Thanks.  I don't know if I'm reading the gcc docs too literally, but
the commentary on "-mfpmath=sse" indicates that mmx/sse/sse/sse3 flags
must be explicitly stated for "-mfpmath=sse" to take effect on a 32-bit
system (sse is the default on 64-bit systems).  So I explicitly included
the flags.  I also included -fomit-frame-pointer, resulting in...

CFLAGS="-O2 -march=prescott -mmmx -msse -msse2 -msse3 -mfpmath=sse 
-fomit-frame-pointer -pipe"

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