Postgres low end processing.

Hi everyone,

I've been trying to find out if some guidelines
exist, somewhere, describing how postgres
can possibly run on less than 8MB of RAM.
(Disk space not an issue).

The closest thread I could find in the list
archives is :
http://archives.postgresql.org/pgsql-general/2002-06/msg01343.php

Is it possible to have a stripped-down version of
postgres that will use an absolute minimal amount
of memory?

Maybe by switching off some features/options
at compile time, and/or configuration tweaks?
(Or anything else)

This will be on very low end i386 architecture.
Performance penalties are expected and
will be accepted. I will need the
functionality of >= 7.3.4 , at least.

Any help will be much appreciated.

Regards
Stef