anchor.diff:      libjpeg
       xz
       zlib
  -  ];
  -
  -  patches = [
  -    (fetchTritonPatch {
  -      rev = "2b7cc8e18285cab70d998e70481ab7e9add51c03";
  -      file = "l/libtiff/CVE-2016-10095.patch";
  -      sha256 = "36063a31e9317c3745b5e03b210c948586ea469205b06d3dde2e1b2493f18d81";
  -    })
     ];
   
     meta = with stdenv.lib; {
  
positive.code: { stdenv
  , fetchTritonPatch
  , fetchurl
  
  , jbigkit
  
negative.code: }:
  
  let
    version = "4.0.9";
  in
  stdenv.mkDerivation rec {
    name = "libtiff-${version}";
  
    src = fetchurl {
      url = "http://download.osgeo.org/libtiff/tiff-${version}.tar.gz";
      multihash = "QmQCAPYk7dbLjNhJrQ9X8jvztSsLQ62hkqtEZqB8mBByVQ";
      sha256 = "6e7bdeec2c310734e734d19aae3a71ebe37a4d842e0e23dbb1b8921c0026cfcd";
    };
  
    buildInputs = [
  