Re: [gentoo-user] Precedence order of overlays

["Bo Ørsted Andresen" <bo.andresen@zlin.dk>]

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> I have several packages that I maintain my own ebuilds for, as it's CVS
> sources. I keep these in /usr/local/portage. As it happens ebuilds for
> these same packages are also in layman, and I have the relevant overlay
> enabled.
>
> So far it would appear that my local overlay is taking precedence over
> layman. I've read the layman docs and there is an option for
> precedence, but it seems to apply to layman only, and that's not what I
> want. The portage docs seems to be sparse on this matter of overlays.
>
> I want to guarantee that foo-9999.ebuild in /usr/local/portage will be
> emerged in preference to an identically named and versioned ebuild in
> layman. How do I do that?

If several overlays contain the same version of an ebuild portage will only 
see the one from the overlay that is listed last in PORTDIR_OVERLAY. This is 
why /usr/portage/local/layman/make.conf prepends layman overlays to 
PORTDIR_OVERLAY rather than appending them.

> If I can't guarantee this, I'd also be happy bumping my ebuilds to
> foo-99999.ebuild, but I'd rather do it with a config option if
> possible.

Do note that portage will consider e.g. foo-20050101.ebuild a higher version 
than foo-9999.ebuild.

-- 
Bo Andresen

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