Massimiliano Culpo 7fd777c3d9 concretizer: swap priority of selecting provider and default variant (#20182) ... refers #20040 Before this PR optimization rules would have selected default providers at a higher priority than default variants. Here we swap this priority and we consider variants that are forced by any means (root spec or spec in depends_on clause) the same as if they were with a default value. This prevents the solver from avoiding expected configurations just because they contain directives like: depends_on('pkg+foo') and `+foo` is not the default variant value for pkg.		2020-12-01 07:45:48 +01:00
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spack	concretizer: swap priority of selecting provider and default variant (#20182)	2020-12-01 07:45:48 +01:00