Install mysql in multiple spots

[Adam Bodnar]

Is there anyway to tell macports to let me install mysql again in
another directory?

I've already installed it in /opt/local/lib/mysql5 and it's subsequent
directories such as etc and var/db.

In order to test new versions of mysql or install a second copy, it'd
be nice if I can tell macports to install a second copy, in something
like /opt/local/lib/mysql5-2.

Now obviously I can go the route of using the official mysql package,
but it's always nice to use macports when possible.

Thanks.