becker33 b9c8cdcbe3 Fix when_spec inheritance for extensions (#7746) ... Popping the when spec from kwargs in the extends directive breaks class inheritance. Inheriting classes do not find their when spec. We now get the when spec from kwargs instead, leaving it to be found by any downstream package classes.		2018-04-13 11:38:34 -07:00
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spack	Fix when_spec inheritance for extensions (#7746)	2018-04-13 11:38:34 -07:00