[pca] Patch pre-requisites

[Martin Paul]

little help wrote:
> Glenn,
>    That seems to provide a bit more detail, which seems to make sense had I
> not seen the patchinfo file.  I ran the pca command against the patch
> without a revision (see below) and then ran the same command against the
> dependencies to see if they had any pre-requisites (below).  It seems to
> show one requirements (117350-62) but not the others.

Three things:

PCA will recursively resolve the dependencies, so you don't need to re-run it 
manually multiple times.

If a required patch is already installed, it will not be shown.

To see the inner workings of resolving dependencies, run "pca --debug".

Martin.