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Date: Tue, 20 May 2008 10:41:29 -0400
From: Mike Edenfield <kutulu@kutulu.org>
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To: Dave Uhring <duhring@charter.net>
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Cc: freebsd-stable@freebsd.org
Subject: Re: Buildworld Fails RELENG_7
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Dave Uhring wrote:

> cc -O2 -fno-strict-aliasing -pipe -m32 -march=athlon-mp -DTM_GMTOFF=tm_gmtoff -DTM_ZONE=tm_zone -DSTD_INSPIRED -DPCTS -DHAVE_LONG_DOUBLE -DTZDIR=\"/usr/share/zoneinfo\" -Demkdir=mkdir -I/usr/src/usr.sbin/zic/zdump/.. -I/usr/src/usr.sbin/zic/zdump/../../../lib/libc/stdtime   -o zdump zdump.o ialloc.o scheck.o 
> 
> I specified CPUTYPE?=k8 but make chose -march=athlon-mp.

This part is behaving as expected for FreeBSD; the make process coverts 
any of the athlon64 cpu types into athlon-mp.  Based on the gcc 
documentation I don't think it makes much difference; the only 
discrepancy between the two seems the presence of the 64-bit instruction 
set.