anchor.diff: -{ stdenv, fetchzip, ocamlPackages }:
  +{ stdenv, fetchzip, ocaml }:
   
   let version = "0.1.8"; in
   
  
positive.code:     sha256 = "1q1k2qqd08j1zakvydgvwgwpyn0ll7rs65gap0pvg3amnh5cp3wd";
    };
  
    buildInputs = with ocamlPackages; [ ocaml findlib ];
  
    buildPhase = ''
      ./bootstrap
  
negative.code: 
    meta = {
      homepage = https://github.com/ocaml-obuild/obuild;
      platforms = ocaml.meta.platforms or [];
      description = "Simple package build system for OCaml";
      license = stdenv.lib.licenses.lgpl21;
      maintainers = with stdenv.lib.maintainers; [ volth ];
  