[head tinderbox] failure on sparc64/sparc64

[FreeBSD Tinderbox]

TB --- 2005-09-26 21:29:40 - tinderbox 2.3 running on freebsd-current.sentex.ca
TB --- 2005-09-26 21:29:40 - starting HEAD tinderbox run for sparc64/sparc64
TB --- 2005-09-26 21:29:40 - cleaning the object tree
TB --- 2005-09-26 21:30:01 - checking out the source tree
TB --- 2005-09-26 21:30:01 - cd /tinderbox/HEAD/sparc64/sparc64
TB --- 2005-09-26 21:30:01 - /usr/bin/cvs -f -R -q -d/home/ncvs update -Pd -A src
TB --- 2005-09-26 21:34:55 - building world (CFLAGS=-O2 -pipe)
TB --- 2005-09-26 21:34:55 - cd /src
TB --- 2005-09-26 21:34:55 - /usr/bin/make -B buildworld
>>> 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
[...]
rm -f m4 eval.o expr.o look.o main.o misc.o gnum4.o trace.o m4.1.gz m4.1.cat.gz
rm -f .depend GPATH GRTAGS GSYMS GTAGS
===> usr.bin/mail (cleandir)
rm -f mail version.o aux.o cmd1.o cmd2.o cmd3.o cmdtab.o collect.o edit.o fio.o getname.o head.o v7.local.o lex.o list.o main.o names.o popen.o quit.o send.o strings.o temp.o tty.o vars.o mail.1.gz mail.1.cat.gz
rm -f .depend GPATH GRTAGS GSYMS GTAGS
===> usr.bin/make (cleandir)
"Makefile", line 20: Need an operator
make: fatal errors encountered -- cannot continue
*** Error code 1

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

Stop in /src.
*** Error code 1

Stop in /src.
*** Error code 1

Stop in /src.
TB --- 2005-09-26 21:35:45 - WARNING: /usr/bin/make returned exit code  1 
TB --- 2005-09-26 21:35:45 - ERROR: failed to build world
TB --- 2005-09-26 21:35:45 - tinderbox aborted