diff options
| -rw-r--r-- | lib/spack/spack/solver/asp.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/spack/spack/solver/asp.py b/lib/spack/spack/solver/asp.py index 7701f38620..eec0e01eca 100644 --- a/lib/spack/spack/solver/asp.py +++ b/lib/spack/spack/solver/asp.py @@ -354,6 +354,10 @@ class AspGenerator(object): union.update(s) values = union + # make sure that every variant has at least one posisble value + if not values: + values = [variant.default] + for value in sorted(values): self.fact(fn.variant_possible_value(pkg.name, name, value)) |