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-rw-r--r--plugins/ssrmatching/ssrmatching.ml5
1 files changed, 4 insertions, 1 deletions
diff --git a/plugins/ssrmatching/ssrmatching.ml b/plugins/ssrmatching/ssrmatching.ml
index 30a998c6ce..20ea8b3667 100644
--- a/plugins/ssrmatching/ssrmatching.ml
+++ b/plugins/ssrmatching/ssrmatching.ml
@@ -291,7 +291,10 @@ let unif_EQ_args env sigma pa a =
prof_unif_eq_args.profile (unif_EQ_args env sigma pa) a
;;
-let unif_HO env ise p c = Evarconv.the_conv_x env p c ise
+let unif_HO env ise p c =
+ try Evarconv.the_conv_x env p c ise
+ with Evarconv.UnableToUnify(ise, err) ->
+ raise Pretype_errors.(PretypeError(env,ise,CannotUnify(p,c,Some err)))
let unif_HO_args env ise0 pa i ca =
let n = Array.length pa in