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-rw-r--r--lib/spack/spack/solver/concretize.lp3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/spack/spack/solver/concretize.lp b/lib/spack/spack/solver/concretize.lp
index bb4b22897f..9dc2efd7bd 100644
--- a/lib/spack/spack/solver/concretize.lp
+++ b/lib/spack/spack/solver/concretize.lp
@@ -20,6 +20,9 @@
% dependencies imply new nodes.
node(D) :- node(P), depends_on(P, D).
+% do not warn for solves with no dependencies
+#defined depends_on/2.
+
%-----------------------------------------------------------------------------
% Variant semantics
%-----------------------------------------------------------------------------