Building a 32 bit chroot on amd64?

Hi, everyone.  I'm trying to build a 32 bit chroot on a 7.0-CURRENT amd64 installation.  The sources are up to date.

"make TARGET_ARCH=i386 buildworld" fails partway through with the message:

===> lib/csu/i386-elf (obj,depend,all,install)
rm -f .depend
CC='/usr/bin/cc' mkdep -f .depend -a    -I/usr/src/lib/csu/i386-elf/../common -I/usr/src/lib/csu/i386-elf/../../libc/include /usr/src/lib/csu/i386-elf/crt1.c /usr/src/lib/csu/i386-elf/crti.S /usr/src/lib/csu/i386-elf/crtn.S
/usr/bin/cc -O2 -fno-strict-aliasing -pipe  -I/usr/src/lib/csu/i386-elf/../common  -I/usr/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 -c /usr/src/lib/csu/i386-elf/crt1.c
{standard input}: Assembler messages:
{standard input}:27: Error: suffix or operands invalid for `mov'
*** Error code 1

Stop in /usr/src/lib/csu/i386-elf.

...And ideas?  

Thanks
-Brooks