Problem building OpenOffice.org 1.1

[Peter Jeremy]

I have a system running FreeBSD 4.9p1 and the OOo port dies in the extract
step:

===>  Extracting for openoffice-1.1.0_1
>> Checksum OK for openoffice1.1/OOo_1.1.0_source.tar.bz2.
>> Checksum OK for openoffice1.1/gpc231.tar.Z.
>> Checksum OK for openoffice1.1/patch-openoffice-mozilla101-2002-10-14.
>> Checksum OK for openoffice1.1/mozilla-vendor-1.0.2a.tgz.
make: don't know how to make extract-mozilla. Stop
*** Error code 2

Stop in /usr/ports/editors/openoffice-1.1.

I first noticed this a few days ago and updating my ports tree hasn't
helped.  Another system running a two-week old version of 4-STABLE
correctly passes "make extract".  Both systems now have a ports tree
from a CVS repository about 12 hours old.

Removing /etc/make.conf and just using
"make extract DISTDIR=/usr/ports_distfiles" doesn't help.

Does anyone have any ideas?  Please copy me in any replies.
-- 
Peter Jeremy