1 files changed, 5 insertions, 0 deletions
diff --git a/lib/util.ml b/lib/util.ml
index 0f900ff923..62a86b55f5 100644
--- a/lib/util.ml
+++ b/lib/util.ml
@@ -146,6 +146,11 @@ let list_try_find_i f =
   in 
   try_find_f
 
+let rec list_uniquize = function
+  | [] -> []
+  | h::t -> if List.mem h t then list_uniquize t else h::(list_uniquize t)
+
+
 (* Arrays *)
 
 let array_exists f v =