problems with kernel compile on 2.2.20

["Bryan K. Walton" <walton@mailbag.com>]

I am trying to compile a 2.2.20 kernel using the kernel-source in
unstable and using kernel-package.  I am compiling on a laptop running
aen up-to-date testing distribution of Debian.  After unpacking the
source, and running make menuconfig, make dep, make-kpkg clean, I then
run:
make-kpkg --revision=custom.2.2.20 kernel_image

After a few minutes of the compile, the compile errors out.  Here is
what is spit out to me:

make[2]: Entering directory
`/usr/src/kernel-source-2.2.20/arch/i386/boot'
cc -D__KERNEL__ -I/usr/src/kernel-source-2.2.20/include -E
-D__BIG_KERNEL__ -traditional -DSVGA_MODE=NORMAL_VGA  bootsect.S -o
bbootsect.s
as86 -0 -a -o bbootsect.o bbootsect.s
make[2]: as86: Command not found
make[2]: *** [bbootsect.o] Error 127
make[2]: Leaving directory
`/usr/src/kernel-source-2.2.20/arch/i386/boot'
make[1]: *** [bzImage] Error 2
make[1]: Leaving directory `/usr/src/kernel-source-2.2.20'
make: *** [stamp-build] Error 2

Can anyone give me some pointers as to what may be happening here?

Thanks,
Bryan Walton