In /etc/mk.conf:

KERNSCRDIR=	${BSDSRCDIR}/sys
KERNOBJDIR=	${BSDOBJDIR}/sys/arch/${MACHINE}/compile

But you'll choke when building the floppies.  You need to edit the
makefiles in /usr/src/distrib/${MACHINE} to grab the correct kernel.

     -- Johnny C. Lam <lamj@stat.cmu.edu>
        Department of Statistics, Carnegie Mellon University
        http://www.stat.cmu.edu/~lamj/

John Kohl <jtk@kolvir.arlington.ma.us> writes:
> I was trying (for the first time) to 'make release' in my tree.  I use
> objdirs (single architecture only), yet the kernel builds of GENERIC,
> etc. were done in the kernel source tree, not in the obj tree.
> My disk filled up and it failed.
> 
> The release builds should be done in the obj tree somewhere, right?
> Time for some makefile hacking?
> 
> -- 
> ==John Kohl <jtk@kolvir.arlington.ma.us>, <john_kohl@alum.mit.edu>
> Home page: <http://people.ne.mediaone.net/jtk/>
> Bicycling and Skiing to keep fit.