dev-db/postgresql-server: support for multiple instances / clusters?

Folks,


Is there a recommended way of serving multiple postgres "clusters" from one
Gentoo install?


I found a Gentoo Forums discussion (
http://forums.gentoo.org/viewtopic-t-760049-start-0.html ) but there was
no result. A bug report (https://bugs.gentoo.org/show_bug.cgi?id=375185
) directed me to the mailing lists.


Ubunut/Debian seems to include tools to facilitate setup of multiple
clusters on one machine:
http://www.stuartellis.eu/articles/postgresql-setup/#multiple-clusters


What I'd like to do is use one Gentoo-powered machine to act as a
streaming replication slave to multiple master servers. If the masters
ran different versions it would not be a problem: the current init/conf
scripts already support one cluster per version, but not multiple
clusters per version.


Thanks for any comments!


-hannes