determining what ports directly depend on X

[Aryeh Friedman]

On 1/3/08, Frank J. Laszlo <laszlof at freebsd.org> wrote:
> Aryeh Friedman wrote:
> > I need to determine which ports depend directly (i.e. they have it
> > listed as a B/RDEPS).   The specfic task I am working on right now
> > (but this will need to be more general later) is attempting to find
> > all the direct childern of libtool15
> >
> A quick hack would be
>
> grep libtool-1.5 /usr/ports/INDEX-6| awk -F"|" {'print $2'}


Doesn't quite work because it appears index is equiv to "make missing"
which includes indirect parents.   For example x11-wm/compwiz does not
reference libool-1.5 except in a USE= line.