Ports Options

[Pieter Donche]

At the first install of a package via the ports collection (cd 
/usr/ports/../..; make install clean), if the package provides 
configuration options, you can check these on a menu screen,
or accept all the defaults.

If later on, you want to know what the set of the options were when you 
installed a port, how to find that out? I tried
# cd /usr/ports/<categoryname>/<portname>
# make
hoping to see the menu again, but it doesn't show any menu, but says:
===>  Found saved configuration for <portname-version>

Where is that saved configuration kept ??
How to get a menu displayed again so you can see and check the options
you want?