make buildworld errors

[luke]

i just cvsup'd to release_5_3 and i'm making buildworld but it keeps
erroring out.
 if i do make buildworld again, chaning nothing, it goes a little
further and errors
 again. i've done this a few times. here's my /etc/make.conf

%more /etc/make.conf
CPUTYPE=k6-2
CFLAGS= -O -pipe
COPTFLAGS= -O -pipe
NO_FORTRAN= true
NO_I4B= true
NO_LPR= true
NO_X= true
NOGAMES= true
NOPROFILE= true
USA_RESIDENT= yes

%uname -a
FreeBSD gw.internal.net 5.3-RELEASE FreeBSD 5.3-RELEASE #0: Fri Nov  5
04:19:18 UTC 2004    
root at harlow.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386

 
and here's output from the latest time it's stopped. any help is appreciated.

cc -O -pipe -I. -DIN_GCC -DHAVE_CONFIG_H -DPREFIX=\"/usr\"
-I/usr/obj/usr/src/gnu/usr.bin/cc/cc_tools/../cc_tools
-I/usr/src/gnu/usr.bin/cc/cc_tools/../cc_tools
-I/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc
-I/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc/config
-DGENERATOR_FILE  -I/usr/obj/usr/src/i386/legacy/usr/include -c
/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc/choose-temp.c
In file included from
/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc/choose-temp.c:26:
/usr/include/stdio.h: In function `__sputc':
/usr/include/stdio.h:399: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
*** Error code 1

Stop in /usr/src/gnu/usr.bin/cc/cc_tools.
*** Error code 1

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

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

Stop in /usr/src.
gw#

this is the 3rd place it's stopped, and like i said, if i repeat the
make buildworld command it will go a little further and stop again.
i'm going to start using time make buildworld and see if there is a
pattern here. this machine has been acting as a slackware gateway for
a little over a year with no hardware change, so i don't think it's
hardware related.