Massimiliano Culpo 9e4b0eb34a Multi-valued variants (#2386) ... Modifications: - added support for multi-valued variants - refactored code related to variants into variant.py - added new generic features to AutotoolsPackage that leverage multi-valued variants - modified openmpi to use new features - added unit tests for the new semantics		2017-05-01 13:08:47 -07:00
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spack	Multi-valued variants (#2386)	2017-05-01 13:08:47 -07:00