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On Fri, Jul 14, 2006 at 09:09:15PM +0200, Paul de Vrieze wrote: |
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> On Wednesday 21 June 2006 15:45, Donnie Berkholz wrote: |
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> > |
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> > -qt +qt3: |
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> > |
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> > This would only be available in 2 cases: |
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> > |
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> > - Package supports both qt4 and qt3, and they're mutually exclusive |
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> > - Package supports both qt4 and qt3, and they can both be enabled at once |
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> > |
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> > In case 1, "-qt +qt3" would enable qt3. In case 2, "-qt +qt3" would |
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> > enable qt3. |
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> > |
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> > In other words, as I've been trying to say all along, there is no such |
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> > thing as a preference flag here. That creates a 2-flag combination to |
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> > get a single feature, which is _not_ what we want. There is a "qt" flag |
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> > to indicate enabling the best available qt for that package, and there |
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> > are "qt#" flags to indicate enabling older qt for that package. |
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> > |
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> > The downside to this setup is that it's difficult to avoid installing |
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> > certain qt versions when it's unknown which version USE=qt will pull in |
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> > for any given package. This favors an entirely versioned setup instead, |
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> > and we should get rid of USE=qt altogether in favor of only USE=qt#. |
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> |
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> Avoiding installation of a package can IMHO better be done by |
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> using /etc/portage/package.mask |
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|
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Arguably better, but sure not easier. It requires lots of entries in |
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/etc/portage/package.use since portage won't automatically disable the |
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qt flag if the required qt version is masked, and when packages change |
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from/to qt3 to/from qt4, there is no way for portage to let the user |
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know (so that "cat/pkg -qt" can be removed from package.use again). |
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-- |
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