pg_restore fails with a custom backup file

Hi, 

pg_restore faied by the following operations on Windows XP.
 $ createdb test $ pgbench -i -s 1000 test $ pg_dump -Fc test > out $ createdb restore $ pg_restore -d restore out
pg_restore:[custom archiver] error during file seek: Invalid argument
 

Win32 does not implement fseeko() and ftello(). So I think it limit to
handle a 2GB file. Is this a specification?

Regards,
--
Yoshiyuki Asaba
y-asaba@sraoss.co.jp