BUG #5639: Compile fails on heap

The following bug has been logged online:

Bug reference:      5639
Logged by:          Markus Ullmann
Email address:      mail@markus-ullmann.de
PostgreSQL version: 9.0beta4
Operating system:   Mac OS X 10.6.4
Description:        Compile fails on heap
Details:

The compilation fails when trying to build fat binarys (aka 32bit and 64bit
in one file).

Patch to fix it:
http://www.markus-ullmann.de/dokumente/postgres90beta_int64.patch