anchor.diff:  }:
   
   stdenv.mkDerivation rec {
  -  version = "0.9.17.1";
  +  version = "0.9.18.2";
     pname = "pdf2djvu";
   
     src = fetchFromGitHub {
       owner = "jwilk";
       repo = "pdf2djvu";
       rev = version;
  -    sha256 = "1igabfy3fd7qndihmkfk9incc15pjxpxh2cn5pfw5fxfwrpjrarn";
  +    sha256 = "s6n7nDO15DZSJ1EOPoNvjdFv/QtOoGiUa2b/k3kzWe8=";
     };
  -
  -  patches = [
  -    # Not included in 0.9.17.1, but will be in the next version.
  -    (fetchpatch {
  -      name = "no-poppler-splash.patch";
  -      url = "https://github.com/jwilk/pdf2djvu/commit/2ec7eee57a47bbfd296badaa03dc20bf71b50201.patch";
  -      sha256 = "03kap7k2j29r16qgl781cxpswzg3r2yn513cqycgl0vax2xj3gly";
  -    })
  -  ];
   
     nativeBuildInputs = [ autoreconfHook pkg-config ];
   
  
positive.code: { stdenv
  , lib
  , fetchFromGitHub
  , fetchpatch
  , autoreconfHook
  , gettext
  , libtool
  
negative.code: 
    enableParallelBuilding = true;
  
    # Required by Poppler
    # https://github.com/jwilk/pdf2djvu/commit/373e065faf2f0d868a3700788d20a96e9528bb12
    CXXFLAGS = "-std=c++17";
  
    meta = with lib; {
      description = "Creates djvu files from PDF files";
      homepage = "https://jwilk.net/software/pdf2djvu";
  