Cannot build py23-pyGreSQL-7.4.1

[Glenn Todd]

I am running FreeBSD 4.8-STABLE and cvsup'd the ports today.  Have  
managed to update the rest of my ports but py23-PyGreSQL falls over  
with the following error:

===>  Extracting for py23-PyGreSQL-7.4.1
>> Checksum OK for postgresql/postgresql-base-7.4.1.tar.bz2.
>> Checksum OK for postgresql/postgresql-opt-7.4.1.tar.bz2.
/usr/bin/tar: This does not look like a tar archive
/usr/bin/tar: Skipping to next header
/usr/bin/tar: Archive contains obsolescent base-64 headers
/usr/bin/tar: Error exit delayed from previous errors
*** Error code 1

Stop in /usr/ports/databases/py-PyGreSQL.
** Command failed [exit code 1]: /usr/bin/script -qa /tmp/ 
portinstall13504.0 make
** Fix the problem and try again.

Glenn
Wellington New Zealand