On Sun, 13 Sep 2009 21:45:59 +0200
Sebastian Pipping <webmaster@hartwork.org> wrote:
> Alexander Færøy wrote:
> >> Second issue: "I want foopackage and barpackage, but not your
> >> hacked gcc" Overlays can overshadow tree packages, which can have
> >> undesired effects.
> > 
> > Support for overlay information in package.mask?
> 
> Once we have repository-specific atoms we get that for free.

Not quite. If both an overlay and the main tree provide foo-1.2,
masking foo-1.2::overlay in Portage would end up masking every foo-1.2.
You also need proper multiple repository support to make it work;
merely adding repo dep specs on top of a pure overlay model isn't
enough.

-- 
Ciaran McCreesh