Massimiliano Culpo d7ffdd76f6 concretizer: treat target ranges in directives correctly (#19988) ... fixes #19981 This commit adds support for target ranges in directives, for instance: conflicts('+foo', when='target=x86_64:,aarch64:') If any target in a spec body is not a known target the following clause will be emitted: node_target_satisfies(Package, TargetConstraint) when traversing the spec and a definition of the clause will then be printed at the end similarly to what is done for package and compiler versions.		2021-02-17 17:07:17 -08:00
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spack	concretizer: treat target ranges in directives correctly (#19988)	2021-02-17 17:07:17 -08:00