Thanks very much for your suggestions.  I suppose that's possible -- I haven't found a reference that maps the output from /etc/cpuinfo to the suggested CHOST and CFLAGS, and I feel kind of unclear on that.  I don't really know how names of processors, like "athlon", "celeron", "pentium", etc., correspond to the possible values for CHOST/CFLAGS.  Is there a definitive reference?  Speaking of that, why not just have there be an option for Gentoo to read /proc/cpuinfo and choose a reasonable CFLAGS value for it?

My last attempt failed the same way, after changing CFLAGS to "-march-k6-2 -pipe ".  Will I have to recompile everything with different CFLAGS and/or CHOST values?

Currently, from /etc/make.conf

USE="X gtk gnome -alsa"
CHOST="i686-pc-linux-gnu"
CFLAGS="-march=k6-2 -pipe "
CXXFLAGS="${CFLAGS}"
RSYNC_RETRIES="3"

dana etc # cat /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 5
model           : 8
model name      : AMD-K6(tm) 3D processor
stepping        : 12
cpu MHz         : 500.025
cache size      : 64 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr mce cx8 pge mmx syscall 3dnow k6_mtrr
bogomips        : 996.14

dana etc #

>From: Stijn Vander Maelen <[EMAIL PROTECTED]>
>CC: [EMAIL PROTECTED]
>Subject: Re: [gentoo-user] newbie question not in the faq: what package supplies the command
>Date: Tue, 4 Mar 2003 05:38:25 +0100 (CET)
>
>
>
>
>On Tue, 4 Mar 2003, Jonathan Morton wrote:
>
> > >/usr/X11R6/bin/xmkmf: line 70: 30112 Illegal instruction imake
> >
> > Looks like you built using over-aggressive CFLAGS.
>
>or a cpu type that's not equal to what's in your computer
>
>regards,
>stijn
>
> >
> > --
> > --------------------------------------------------------------
> > from: Jonathan "Chromatix" Morton
> > mail: [EMAIL PROTECTED]
> > website: http://www.chromatix.uklinux.net/
> > tagline: The key to knowledge is not to rely on people to teach you it.
> >
> > --
> > [EMAIL PROTECTED] mailing list
> >
> >
>
>--
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