cc1: internal compiler error: Abort trap: 6

[Singh, Vijay]

Hello, while doing a make buildkernel on a FreeBSD 6.0 system, I get a
compile failure in pf (depend):

===> pf (depend)
@ -> /usr/src/sys
machine -> /usr/src/sys/i386/include
echo "#define DEV_PF 1" > opt_pf.h
echo "#define DEV_PFLOG 1" >> opt_pf.h
echo "#define INET 1" > opt_inet.h
echo "#define INET6 1" > opt_inet6.h
echo "#define DEV_BPF 1" > opt_bpf.h
rm -f .depend
mkdep -f .depend -a   -nostdinc
-I/usr/src/sys/modules/pf/../../contrib/pf -D_KERNEL -DKLD_MODULE -I-
-I/usr/src/sys/modules/pf/../../contrib/pf -I. -I@ -I@/contrib/altq
-I@/../include -I/usr/include -I/usr/obj/usr/src/sys/SMP
/usr/src/sys/modules/pf/../../contrib/pf/net/pf.c
/usr/src/sys/modules/pf/../../contrib/pf/net/pf_if.c
/usr/src/sys/modules/pf/../../contrib/pf/net/pf_subr.c
/usr/src/sys/modules/pf/../../contrib/pf/net/pf_osfp.c
/usr/src/sys/modules/pf/../../contrib/pf/net/pf_ioctl.c
/usr/src/sys/modules/pf/../../contrib/pf/net/pf_norm.c
/usr/src/sys/modules/pf/../../contrib/pf/net/pf_table.c
/usr/src/sys/modules/pf/../../contrib/pf/net/if_pflog.c
/usr/src/sys/modules/pf/../../contrib/pf/netinet/in4_cksum.c
cc1: internal compiler error: Abort trap: 6

gcc -v
Using built-in specs.
Configured with: FreeBSD/i386 system compiler
Thread model: posix
gcc version 3.4.2 [FreeBSD] 20040728

Is this a known issue? How can I get around this?

Vijay Singh
NetApp