Massimiliano Culpo b326d59e10 concretizer: prioritize matching compilers over newer versions (#20020) ... fixes #20019 Before this modification having a newer version of a node came at higher priority in the optimization than having matching compilers. This could result in unexpected configurations for packages with conflict directives on compilers of the type: conflicts('%gcc@X.Y:', when='@:A.B') where changing the compiler for just that node is preferred to lower the node version to less than 'A.B'. Now the priority has been switched so the solver will try to lower the version of the nodes in question before changing their compiler.		2021-02-17 17:07:16 -08:00
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spack	concretizer: prioritize matching compilers over newer versions (#20020)	2021-02-17 17:07:16 -08:00