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List:       gentoo-dev
Subject:    Re: [gentoo-dev]  [RFC] Useflags: qt, qt3, qt4?
From:       Paul de Vrieze <pauldv () gentoo ! org>
Date:       2006-07-14 19:09:15
Message-ID: 200607142109.28411.pauldv () gentoo ! org
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On Wednesday 21 June 2006 15:45, Donnie Berkholz wrote:
>
> -qt +qt3:
>
> This would only be available in 2 cases:
>
> - Package supports both qt4 and qt3, and they're mutually exclusive
> - Package supports both qt4 and qt3, and they can both be enabled at once
>
> In case 1, "-qt +qt3" would enable qt3. In case 2, "-qt +qt3" would
> enable qt3.
>
> In other words, as I've been trying to say all along, there is no such
> thing as a preference flag here. That creates a 2-flag combination to
> get a single feature, which is _not_ what we want. There is a "qt" flag
> to indicate enabling the best available qt for that package, and there
> are "qt#" flags to indicate enabling older qt for that package.
>
> The downside to this setup is that it's difficult to avoid installing
> certain qt versions when it's unknown which version USE=qt will pull in
> for any given package. This favors an entirely versioned setup instead,
> and we should get rid of USE=qt altogether in favor of only USE=qt#.

Avoiding installation of a package can IMHO better be done by 
using /etc/portage/package.mask

Paul

-- 
Paul de Vrieze
Gentoo Developer
Mail: pauldv@gentoo.org
Homepage: http://www.devrieze.net

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