Building kernels broken under AMD64 Releng 8

[M. Warner Losh]

In message: <g2i7d6fde3d1004261613h44c1631fj3b52fbb9bf4f70ec at mail.gmail.com>
            Garrett Cooper <yanefbsd at gmail.com> writes:
: On Mon, Apr 26, 2010 at 2:54 PM, Stephen Hocking
: <stephen.hocking at gmail.com> wrote:
: > Hi all,
: >
: > Am noticing the following when attempting to build a kernel:
: >
: > [root at blurfl /usr/src]# make buildkernel
: >
: > --------------------------------------------------------------
: >>>> Kernel build for GENERIC started on Tue Apr 27 07:53:29 EST 2010
: > --------------------------------------------------------------
: > ===> GENERIC
: > mkdir -p /usr/obj/src/FreeBSD/STABLE/src/sys
: >
: > --------------------------------------------------------------
: >>>> stage 1: configuring the kernel
: > --------------------------------------------------------------
: > cd /src/FreeBSD/STABLE/src/sys/amd64/conf;
: > PATH=/usr/obj/src/FreeBSD/STABLE/sr/tmp/legacy/usr/sbin:/usr/obj/src/FreeBSD/STABLE/src/tmp/legacy/usr/bin:/usr/ob/src/FreeBSD/STABLE/src/tmp/legacy/usr/games:/usr/obj/src/FreeBSD/STABLE/src/tm/usr/sbin:/usr/obj/src/FreeBSD/STABLE/src/tmp/usr/bin:/usr/obj/src/FreeBSD/STABE/src/tmp/usr/games:/sbin:/bin:/usr/sbin:/usr/bin
: >  config  -d /usr/obj/src/FreeSD/STABLE/src/sys/GENERIC
: > /src/FreeBSD/STABLE/src/sys/amd64/conf/GENERIC
: > ../../conf/options.amd64: Duplicate option COMPAT_FREEBSD32.
: > *** Error code 1
: >
: > Stop in /src/FreeBSD/STABLE/src.
: > *** Error code 1
: >
: > Stop in /src/FreeBSD/STABLE/src.
: >
: >
: > Any clues? I believe it's related to the COMPAT_IA32 option being
: > replaced (I haven't built a kernel since the beginning of the month).
: 
:     This was reported approximately a week ago and Warner (imp@) was
: made aware of the problem, and fixed the issue in a later revision of
: 8-STABLE I think. Please see:
: http://lists.freebsd.org/pipermail/svn-src-all/2010-April/022969.html
: for more details.

You always have to rebuild world before rebuilding the kernel.  You
often can get away with not doing that, but not aways.

I'm adding a safety belt to config, and that should be done soon.

Warner