anchor.diff:      boolOn
       boolString;
   
  -  version = "0.59.0";
  +  version = "0.61.0";
   in
   stdenv.mkDerivation rec {
     name = "poppler-${suffix}-${version}";
   
     src = fetchurl {
       url = "https://poppler.freedesktop.org/poppler-${version}.tar.xz";
  -    multihash = "QmVQoPnFRohtQ2ZMEWRE2dtCfUt9NbM82Brc1YeY3GVrkL";
  -    sha256 = "a3d626b24cd14efa9864e12584b22c9c32f51c46417d7c10ca17651f297c9641";
  +    multihash = "QmPHzySJULEvBarwsvK3rFoFoLABkwtsgrFCarS7cZ1haP";
  +    sha256 = "53cde17a2afa3b73eb8b209d24e4369b52bfac444065dbb0a8cbcc7356582b7f";
     };
   
     nativeBuildInputs = [
  
positive.code:     qt5
      zlib
    ];
  
    postUnpack = ''
      rm -v $srcRoot/configure{,.ac}
    '';
  
    patches = [
      (fetchTritonPatch {
  
negative.code:     fontconfig
      freetype
      glib
      gobject-introspection
      lcms2
      libjpeg
      libpng
  