Yves Arrouye writes ("Replaces: and virtual packages?"):
> I thought having a package with
> Provides: compress
> Replaces: compress
> would be like
>
> Provides: compress
> Conflicts: compress
> except that the conflict will not appear and I hoped that when the package
> was installed any previous package providing compress would be removed
> first.
I think you want:
Conflicts: compress
Replaces: compress
Provides: compress
Ian.