PREFIX "cleverness"

[Mike Patterson]

I use quotation marks because I'm not certain what I intend to do is
clever, really, but it would make my life a lot easier.

I'm trying to make ports install themselves to something like
PREFIX/portname/, so that libtool15's binary would be
PREFIX/libtool15/bin and its man pages would be PREFIX/libtool15/man,
etc.

A quick read through the handbook and bsd.ports.mk imply that there's no
current way to do it, but perhaps I missed something.  I'd be willing to
try hacking up Mk bits (either for committing or just for myself).

Or am I insane for wanting to force ports infrastructure to conform to
this sort of localism?

Mike