buildkernel error going from 6.2-STABLE to 6.3-STABLE i386

[Doug Poland]

Hello,

I'm attempting to build a GENERIC kernel for 6.3-STABLE and am getting 
the following error message:

cc -c -O -pipe  -Wall -Wredundant-decls -Wnested-externs -Wstrict-prototypes  -Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual  -fformat-extensions -std=c99 -g -nostdinc -I-  -c
/usr/src/sys/i386/isa/clock.c: In function `DELAY':
/usr/src/sys/i386/isa/clock.c:301: warning: implicit declaration of function `cpu_spinwait'
/usr/src/sys/i386/isa/clock.c:301: warning: nested extern declaration of `cpu_spinwait'
*** Error code 1

Stop in /usr/obj/usr/src/sys/GENERIC.
*** Error code 1

Stop in /usr/src.
*** Error code 1

Stop in /usr/src.

The box is currently running 6.2-STABLE (i386).  I did a fresh cvsup
yesterday using:
	*default release=cvs tag=RELENG_6

Buildworld worked without issue.  I've googled but have yet to find an
answer.  Any ideas?

-- 
Regards,
Doug