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-rw-r--r--kernel/modops.mli1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/modops.mli b/kernel/modops.mli
index bb97f0171e..119ce2b359 100644
--- a/kernel/modops.mli
+++ b/kernel/modops.mli
@@ -111,6 +111,7 @@ type signature_mismatch_error =
| IncompatibleUniverses of Univ.univ_inconsistency
| IncompatiblePolymorphism of env * types * types
| IncompatibleConstraints of { got : Univ.AUContext.t; expect : Univ.AUContext.t }
+ | IncompatibleVariance
type module_typing_error =
| SignatureMismatch of