shm breaks 'make buildkernel'

cc -c -O -pipe  -std=c99 -g -Wall -Wredundant-decls -Wnested-externs -Wstrict-prototypes  -Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual  -Wundef -Wno-pointer-sign -fformat-extensions -nostdinc  -I. -I/usr/src/sys -I/usr/src/sys/contrib/altq -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h -fno-common -finline-limit=8000 --param inline-unit-growth=100 --param large-function-growth=1000  -mno-align-long-strings -mpreferred-stack-boundary=2  -mno-mmx -mno-3dnow -mno-sse -mno-sse2 -mno-sse3 -ffreestanding -fstack-protector -Werror  /usr/src/sys/kern/sysv_shm.c
/usr/src/sys/kern/sysv_shm.c:882: error: field 'shm_perm' has incomplete type
cc1: warnings being treated as errors
/usr/src/sys/kern/sysv_shm.c: In function 'oshmctl':
/usr/src/sys/kern/sysv_shm.c:925: warning: implicit declaration of function 'ipcperm_new2old'
/usr/src/sys/kern/sysv_shm.c:925: warning: nested extern declaration of 'ipcperm_new2old'
/usr/src/sys/kern/sysv_shm.c:939: warning: implicit declaration of function 'freebsd7_shmctl'
/usr/src/sys/kern/sysv_shm.c:939: warning: nested extern declaration of 'freebsd7_shmctl'
/usr/src/sys/kern/sysv_shm.c: At top level:
/usr/src/sys/kern/sysv_shm.c:954: error: 'freebsd7_shmctl' undeclared here (not in a function)
*** Error code 1

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

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

Stop in /usr/src.

-- 
Steve