Creating port dependancies in portupgrade

[Stephen J. Roznowski]

I've looked at pkgtools.conf, but don't see an example for this.

Is it possible to have portupgrade install another port if a different
port is updated? For example, if "ImageMagick" is updated, I'd like to
reinstall "display". [There is a conflicting program name between these
two ports...]

Got an example for pkgtools.conf?

Thanks,
-- 
Stephen J. Roznowski    (sjr at comcast.net)