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>>>>> On Wed, 12 Aug 2015, Alexis Ballier wrote: |
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> i.e. something that really tells the PM how to automate the choice: |
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> - 'qt5 -> !qt4' is rather straightforward to solve and tells the PM how |
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> (note that it is not equivalent to 'qt4 -> !qt5') |
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> - '^^ ( qt5 qt4 )' requires the PM to make a choice in order to |
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> automate it |
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I was thinking about some syntax like this: |
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REQUIRED_USE="|| ( +foo bar ) ^^ ( +qt5 -qt4 )" |
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The package manager would first evaluate each group in REQUIRED_USE |
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with the original set of USE flags. If that doesn't evaluate to true, |
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retry with flags changed as indicated by the + and - signs. |
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Ulrich |
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