Anyone doing a 8.1.0-ia64-RHEL4-as.rpm ?

Hello,

Is anyone working on an 8.1.0 RPM for IA64 on Red Hat Enterprise Linux 4
AS ?
On the web site :
http://www.postgresql.org/ftp/binary/v8.1.1/linux/rpms/redhat/, I have
found a "rhel-as 4" version for RHEL4 but I don't think it is a version
for IA64.

Could someone explain me how generate this rpm ?

Thank you for your help.
Regards,
Alexandra DANTE