diff options
| -rw-r--r-- | lib/spack/spack/concretize.py | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/spack/spack/concretize.py b/lib/spack/spack/concretize.py index 9c9e9e10ff..3da5efc9fa 100644 --- a/lib/spack/spack/concretize.py +++ b/lib/spack/spack/concretize.py @@ -95,7 +95,11 @@ class DefaultConcretizer(object): not b.external and b.external_module): # We're choosing between different providers, so # maintain order from provider sort - return candidates.index(a) - candidates.index(b) + index_of_a = next(i for i in range(0, len(candidates)) \ + if a.satisfies(candidates[i])) + index_of_b = next(i for i in range(0, len(candidates)) \ + if b.satisfies(candidates[i])) + return index_of_a - index_of_b result = cmp_specs(a, b) if result != 0: |