Error (alert deprecated): module Stdlib.Pervasives
Use Stdlib instead.

https://github.com/bvaugon/ocamlclean/pull/1
--- a/src/step1.ml
+++ b/src/step1.ml
@@ -91,7 +91,7 @@ let prepare_code old_code cleanables ign
                   f (succ indg) adds cleans
               | None -> f (succ indg) adds cleans
           else
-            (List.sort Pervasives.compare adds, cleans)
+            (List.sort Stdlib.compare adds, cleans)
   in
   let adds, cleans = f 0 [] [] in
   let old_code_size = Array.length old_code in