Stop in /usr/src/sys/modules/union

[Spades]

Hi,

I installed FreeBSD 4.9-PREREL and recompiled the kernel and 
got this problem during recompile of kernel.

# make depend && make && make install..
(snip)
vnode_if.h:876: warning: inlining failed in call to `VOP_UNLOCK'
/usr/src/sys/modules/union/../../miscfs/union/union_vnops.c:598: warning:
called from here
/usr/src/sys/modules/union/../../miscfs/union/union_vnops.c: In function
`union_inactive':
/usr/src/sys/modules/union/../../miscfs/union/union_vnops.c:1705: warning:
unused variable `vpp'
/usr/src/sys/modules/union/../../miscfs/union/union_vnops.c: In function
`union_unlock':
/usr/src/sys/modules/union/../../miscfs/union/union_vnops.c:1803: warning:
unused variable `un'
*** Error code 1

Stop in /usr/src/sys/modules/union.
*** Error code 1

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

Stop in /usr/src/sys/compile/CONF.

Any solutions around this?

Thanks.