Apple switched to BSDtar from GNUtar with Leopard

A little research shows that Apple modified tGNUtar o be resource fork
aware and, I guess, did the same with BSDtar! Maybe this points to the
problem. Certainly there is nothing wrong with the tar files on the
site!

curl http://www.postgresql.org/ftp/source/v8.4.1/
postgresql-8.4.1.tar.gz -O
% Total % Received % Xferd Average Speed Time Time
Time Current
Dload Upload Total Spent
Left Speed
119 239 119 239 0 0 716 0 --:--:-- --:--:--
--:--:-- 1448

gnutar -zvxf postgresql-8.4.1.tar.gz
gzip: stdin: not in gzip format
gnutar: Child returned status 1
gnutar: Error exit delayed from previous errors

bsdtar -zvxf postgresql-8.4.1.tar.gz
bsdtar: Unrecognized archive format: Inappropriate file type or format
bsdtar: Error exit delayed from previous errors.

I'm not sure what to do if I need a fresh copy of the src. ?
Fortunatly I did get an tar file from SourceForge, about a week ago,
that seems to behave normally.

Don