[head tinderbox] failure on i386/pc98

[FreeBSD Tinderbox]

TB --- 2007-06-12 17:14:40 - tinderbox 2.3 running on freebsd-current.sentex.ca
TB --- 2007-06-12 17:14:40 - starting HEAD tinderbox run for i386/pc98
TB --- 2007-06-12 17:14:40 - cleaning the object tree
TB --- 2007-06-12 17:14:58 - checking out the source tree
TB --- 2007-06-12 17:14:58 - cd /tinderbox/HEAD/i386/pc98
TB --- 2007-06-12 17:14:58 - /usr/bin/cvs -f -R -q -d/home/ncvs update -Pd -A src
TB --- 2007-06-12 17:23:50 - building world (CFLAGS=-O2 -pipe)
TB --- 2007-06-12 17:23:50 - cd /src
TB --- 2007-06-12 17:23:50 - /usr/bin/make -B buildworld
>>> World build started on Tue Jun 12 17:23:52 UTC 2007
>>> Rebuilding the temporary build tree
>>> stage 1.1: legacy release compatibility shims
>>> stage 1.2: bootstrap tools
>>> stage 2.1: cleaning up the object tree
>>> stage 2.2: rebuilding the object tree
>>> stage 2.3: build tools
>>> stage 3: cross tools
>>> stage 4.1: building includes
>>> stage 4.2: building libraries
[...]
cc -O2 -pipe  -I/src/lib/csu/i386-elf/../common  -I/src/lib/csu/i386-elf/../../libc/include -Wsystem-headers -Wall -Wno-format-y2k -W -Wno-unused-parameter -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow -Wcast-align -Wunused-parameter -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls -Wno-pointer-sign -DGCRT -c -o gcrt1.o /src/lib/csu/i386-elf/crt1.c
sh /src/tools/install.sh -o root -g wheel  -m 444 crt1.o crti.o crtn.o gcrt1.o /obj/pc98/src/tmp/usr/lib
===> lib/libc (obj,depend,all,install)
yacc -d -p_nsyy /src/lib/libc/net/nsparser.y
mv y.tab.c nsparser.c
mv y.tab.h nsparser.h
lex  -P_nsyy -o/dev/stdout /src/lib/libc/net/nslexer.l |  sed -e '/YY_BUF_SIZE/s/16384/1024/' >nslexer.c
make: don't know how to make sourcefilter.c. Stop
*** Error code 2

Stop in /src.
*** Error code 1

Stop in /src.
*** Error code 1

Stop in /src.
*** Error code 1

Stop in /src.
TB --- 2007-06-12 17:35:24 - WARNING: /usr/bin/make returned exit code  1 
TB --- 2007-06-12 17:35:24 - ERROR: failed to build world
TB --- 2007-06-12 17:35:24 - tinderbox aborted
TB --- 0.46 user 1.33 system 1243.12 real


http://tinderbox.des.no/tinderbox-head-HEAD-i386-pc98.full