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On Tue, 30 Jan 2007 13:01:47 -0500 |
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Alec Warner <antarus@g.o> wrote: |
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> Marius Mauch wrote: |
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> > Sometimes a package has to depend on a specific version of a slotted package being the "active" one to build correctly, like in the current "tr1" discussion on -dev [1] or with packages that depend on the running kernel. |
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> > |
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> > Currently this isn't really possible, however I while ago I got an idea how to solve this. Keep in mind this is just a rough idea and I'm pretty sure some people can/will point out why it is a stupid idea, but anyway: |
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> > |
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> > The idea is to add a special category (let's call it "active" for now) that has the following properties: |
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> > - this category doesn't exist in portdir or vdb (= no ebuilds) |
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> > - when portage ($pkgmanager) encounters a "active/foo" atom in a dependency string it executes some special code (e.g. "$PORTDIR/scripts/active-check/foo =active/foo-1") to determine if that atom is satisfied |
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> > |
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> > (and yes, this kinda goes with multi-repo/multi-format support) |
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> > |
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> > Marius |
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> |
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> I don't see why how this is any less complicated than just adding more |
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> functionality to || deps (runtime versus compile time) |
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Please explain. If a package can only be built if the currently running kernel is higher than 2.6.19 for example, how would you possibly express that in *DEPEND syntax? |
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Marius |
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-- |
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