How do I know why I have a port?

[Ryan Schmidt]

On Jul 27, 2012, at 20:42, Jack Repenning <jack at netgate.net> wrote:

> Sometimes, I notice I have some port installed that I have no conscious interest in. I'm sure it's there because it's depended upon by some other port that I do care about (or recursively), but is there some way I can find out what that would be?
> 
> I see that "port info whatever" tells me what stuff "whatever" depends upon, but I want the inverse of that.

One way of handling this problem is to just try uninstalling the port. If anything depends on it, MacPorts will prevent you from uninstalling it and will tell you why.