make buildworld problems on RELENG_5

Using the following /etc/make.conf

PERL_VER=5.8.5
PERL_VERSION=5.8.5
PERL_ARCH=mach
NOPERL=yo
NO_PERL=yo
NO_PERL_WRAPPER=yo
CPUTYPE=i686
CFLAGS= -O -pipe
COPTFLAGS= -O -pipe
NO_MODULES=     true    # do not build modules with the kernel
MODULES_WITH_WORLD=true
KERNCONF=itx
NOGAMES=       true    # do not build games (games/ subdir)

I get

===> sys/modules/ipfw
rm -f .depend
mkdep -f .depend -a   -nostdinc -DIPFIREWALL -D_KERNEL -DKLD_MODULE -I- -I. 
-I_at_ -I_at_/contrib/altq -I_at_/../include 
/usr/src/sys/modules/ipfw/../../netinet/ip_fw2.c 
/usr/src/sys/modules/ipfw/../../netinet/ip_fw_pfil.c
/usr/src/sys/modules/ipfw/../../netinet/ip_fw2.c:35:22: opt_ipfw.h: No such 
file or directory
/usr/src/sys/modules/ipfw/../../netinet/ip_fw2.c:36:22: opt_ipdn.h: No such 
file or directory
/usr/src/sys/modules/ipfw/../../netinet/ip_fw2.c:37:26: opt_ipdivert.h: No 
such file or directory
/usr/src/sys/modules/ipfw/../../netinet/ip_fw2.c:38:22: opt_inet.h: No such 
file or directory
/usr/src/sys/modules/ipfw/../../netinet/ip_fw2.c:39:23: opt_ipsec.h: No 
such file or directory
/usr/src/sys/modules/ipfw/../../netinet/ip_fw2.c:41:2: #error IPFIREWALL 
requires INET.
/usr/src/sys/modules/ipfw/../../netinet/ip_fw_pfil.c:29:22: opt_ipfw.h: No 
such file or directory
/usr/src/sys/modules/ipfw/../../netinet/ip_fw_pfil.c:30:22: opt_ipdn.h: No 
such file or directory
/usr/src/sys/modules/ipfw/../../netinet/ip_fw_pfil.c:31:26: opt_ipdivert.h: 
No such file or directory
/usr/src/sys/modules/ipfw/../../netinet/ip_fw_pfil.c:32:28: 
opt_pfil_hooks.h: No such file or directory
/usr/src/sys/modules/ipfw/../../netinet/ip_fw_pfil.c:33:22: opt_inet.h: No 
such file or directory
/usr/src/sys/modules/ipfw/../../netinet/ip_fw_pfil.c:35:2: #error 
IPFIREWALL requires INET.
mkdep: compile failed
*** Error code 1

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

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

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

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

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

Stop in /usr/src.
53beta#




--------------------------------------------------------------------
Mike Tancsa,                                      tel +1 519 651 3400
Sentex Communications,                            mike_at_sentex.net
Providing Internet since 1994                    www.sentex.net
Cambridge, Ontario Canada                         www.sentex.net/mike