acc11f676d
This commit fixes a subtle bug that may occur when a package is a "possible_provider" of a virtual but no "provides_virtual" can be deduced. In that case the cardinality constraint on "provides_virtual" may arbitrarily assign a package the role of provider even if the constraints for it to be one are not fulfilled. The fix reworks the logic around three concepts: - "possible_provider": a package may provide a virtual if some constraints are met - "provides_virtual": a package meet the constraints to provide a virtual - "provider": a package selected to provide a virtual |
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| env | ||
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| spack | ||