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Date: Wed, 28 Dec 2011 17:26:12 +0100
From: Dimitry Andric <dim@FreeBSD.org>
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To: Renato Botelho <rbgarga@gmail.com>
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Cc: current@freebsd.org
Subject: Re: Clang error make buildworld
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On 2011-12-28 16:44, Renato Botelho wrote:
> On Tue, May 3, 2011 at 10:07 PM, Manfred Antar<null@pozo.com>  wrote:
>> I get this error when trying to buildworld on current i386.
>> It's been this way for awhile Any Ideas ?
>>
>> ===>  boot/i386/boot0 (all)
>> clang -O2 -pipe  -DVOLUME_SERIAL -DPXE -DFLAGS=0x8f  -DTICKS=0xb6  -DCOMSPEED="7<<  5 + 3" -ffreestanding -mpreferred-stack-boundary=2  -mno-mmx -mno-3dnow -mno-sse -mno-sse2 -mno-sse3 -msoft-float -std=gnu99    -c /usr/src/sys/boot/i386/boot0/boot0.S
>> clang: warning: argument unused during compilation: '-mpreferred-stack-boundary=2'
>> /tmp/cc-4SXZt8.s:42:11: error: .code16 not supported yet
>>   .code16 # This runs in real mode
>>           ^

This is expected, since the above command line is supposed to have
'-no-integrated-as' added.  For some reason, the test for clang in
sys/boot/i386/boot0/Makefile is not working as it should.

Most likely, it is due to the way you set CC, CXX and/or CPP in
make.conf.  Can you please post that file?