anchor.diff:  { stdenv
  -, fetchpatch
  +, cmake
   , fetchTritonPatch
   , fetchurl
   
  
positive.code:     fontconfig
      freetype
      glib
      gobject-introspection
      lcms2
      libjpeg
      libpng
      libtiff
      openjpeg
      qt5
      zlib
    ];
  
    patches = [
      (fetchTritonPatch {
  
negative.code: 
  stdenv.mkDerivation rec {
    name = "poppler-${suffix}-${version}";
    version = "0.46.0";
  
    src = fetchurl {
      url = "https://poppler.freedesktop.org/poppler-${version}.tar.xz";
      sha256 = "967d35d13d61dee2fee656b80efef9e388a9e752bc79b7123f15b49c7769e487";
    };
  
    nativeBuildInputs = [
      cmake
    ];
  
    buildInputs = [
      cairo
  