anchor.diff:    buildPhase     = "ocaml setup.ml -build";
     installPhase   = "ocaml setup.ml -install";
   
  -  meta = {
  +  meta = with stdenv.lib; {
       homepage = http://oasis.forge.ocamlcore.org/;
       description = "Configure, build and install system for OCaml projects";
  -    license = stdenv.lib.licenses.lgpl21;
  +    license = licenses.lgpl21;
       platforms = ocaml.meta.platforms;
  -    maintainers = with stdenv.lib.maintainers; [
  -      z77z
  +    maintainers = with maintainers; [
  +      vbgl z77z
       ];
     };
   }
  
positive.code: {stdenv, fetchurl, ocaml, findlib, ocaml_data_notation, ocaml_typeconv,
   ocamlmod, ocamlify, ounit, expect}:
  
  stdenv.mkDerivation {
  
negative.code: 
    buildInputs =
      [
        ocaml findlib ocaml_typeconv ocamlmod ocamlify ounit camlp4
      ];
  
    propagatedBuildInputs = [ ocaml_data_notation ];
  