Display installed port dependencies

[Andy Smith]

platanthera <platanthera <at> web.de> writes:
> On Saturday 15 May 2004 03:44, Andy Smith wrote:
> > Hi,
> >
> > Is there a simple way to display a list of all installed packages
> > that depend on another given installed package?
> 
> pkg_info -R foo
> will list all currently installed packages that depend on foo

Doh!  I'm really sorry, that is right in the man page which I DID read.  I have
no idea how I missed it.