anchor.diff:        sha256 = "00yvyfm4j423zqndvgc1ycnmiffaa2l9ab40cyg23pf51qmzk2jm";
       };
       dune-local = fetchurl {
  -      url = "https://github.com/ocaml/dune/releases/download/1.2.1/dune-1.2.1.tbz";
  -      sha256 = "00c5dbm4hkdapc2i7pg07b2lj8sv6ly38qr7zid58cdmbmzq21z9";
  +      url = "https://github.com/ocaml/dune/releases/download/1.6.3/dune-1.6.3.tbz";
  +      sha256 = "0dmf0wbfmgdy5plz1bjiisc2hjgblvxsnrqjmw2c8y45v1h23mdz";
       };
       extlib = fetchurl {
         url = "http://ygrek.org.ua/p/release/ocaml-extlib/extlib-1.7.5.tar.gz";
         sha256 = "19slqf5bdj0rrph2w41giwmn6df2qm07942jn058pjkjrnk30d4s";
       };
       mccs = fetchurl {
  -      url = "https://github.com/AltGr/ocaml-mccs/archive/1.1+9.tar.gz";
  -      sha256 = "0gf86c65jdxxcwd96kcmrqxrmnnzc0570gb9ad6c57rl3fyy8yhv";
  +      url = "https://github.com/AltGr/ocaml-mccs/archive/1.1+10.tar.gz";
  +      sha256 = "003kam22plnh88liyxi4d1065j2rys1mpdla20rxps53ah1xwmxg";
       };
       ocamlgraph = fetchurl {
         url = "http://ocamlgraph.lri.fr/download/ocamlgraph-1.8.8.tar.gz";
  
positive.code:       sha256 = "02lb2d9i12bxrz2ba5wygk2bycan316skqlyri0597q7j9210g8r";
      };
      opam = fetchurl {
        url = "https://github.com/ocaml/opam/archive/2.0.4.zip";
        sha256 = "1312nc9s4h0vksiimz7jsv3zw17fa05p6mdx23s5sii0qspvnx8c";
      };
    };
  in stdenv.mkDerivation rec {
    name = "opam-${version}";
    version = "2.0.4";
  
    buildInputs = [ unzip curl ncurses ocaml makeWrapper getconf ] ++ lib.optional stdenv.isLinux bubblewrap;
  
  
negative.code:     platforms = platforms.all;
    };
  }
  # Generated by: ./opam.nix.pl -v 2.0.5 -p opam-shebangs.patch
  