2009/3/5 Marijn Schouten (hkBst) <hkBst@g.o>:
>
> The problem of ebuilds in one overlay not seeing ebuilds in another overlay,
> would also be solved by the package manager NOT failing to see/notice/use/allow
> ebuilds from all installed overlays. Then there would be no need for a hierarchy
> among overlays.

Not sure if this has been mentioned already, but why not making the
profile only affect the corresponding repository and allow repository
aware configuration (make.conf and /etc/portage/* in case of portage
being the package manager)? That way repository based masking and
unmasking would be possible.

-- 
Regards,
Daniel