Todd Gamblin acc62abbd0 Rework do_activate/activate and do_deactivate/deactivate semantics. ... - packages can now extend only one other package. - do_activate() and do_deactivate() are now called on the extension, and they automatically find the extendee - activate() and deactivate() are still called on the extendee and are passed the extension.		2015-02-02 11:19:53 -08:00
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spack	Rework do_activate/activate and do_deactivate/deactivate semantics.	2015-02-02 11:19:53 -08:00