anchor.diff:      libjpeg
       libogg
       pcre
  -  ] ++ lib.optionals enableMultiplayer [
  -    ancientCryptopp
     ];
   
     # Crashes can happen, we'd like them to be reasonably debuggable
     cmakeBuildType = "RelWithDebInfo";
     dontStrip = true;
  -
  -  cmakeFlags = [
  -    "-DUSE_CRYPTOPP=${if enableMultiplayer then "ON" else "OFF"}"
  -  ] ++ lib.optionals enableMultiplayer [
  -    "-DCMAKE_INCLUDE_PATH=${ancientCryptopp}/include/cryptopp"
  -  ];
   
     postInstall = ''
       # needed because of SDL_LoadObject library loading code
  
positive.code:     fetchSubmodules = true;
      sha256 = "07qj1lpp21g4p583gvz5h66y2q71ymbsz4g5nr6dcys0vm7ph88v";
    };
  
    # https://github.com/OpenXRay/xray-16/issues/518
    ancientCryptopp = stdenv.mkDerivation {
      pname = "cryptopp";
      version = "5.6.5";
  
      inherit src;
  
      sourceRoot = "source/Externals/cryptopp";
  
      installFlags = [ "PREFIX=${placeholder "out"}" ];
  
      enableParallelBuilding = true;
  
      doCheck = true;
  
      dontStrip = true;
  
      meta = with lib; {
        description = "Crypto++, a free C++ class library of cryptographic schemes";
        homepage = "https://cryptopp.com/";
        license = with licenses; [ boost publicDomain ];
        platforms = platforms.all;
        knownVulnerabilities = [
          "CVE-2019-14318"
        ];
      };
    };
  in
  stdenv.mkDerivation rec {
    pname = "openxray";
  
    inherit version src;
  
    nativeBuildInputs = [
      cmake
  
negative.code:     description = "Improved version of the X-Ray Engine, the game engine used in the world-famous S.T.A.L.K.E.R. game series by GSC Game World";
      homepage = "https://github.com/OpenXRay/xray-16/";
      license = licenses.unfree // {
        url = "https://github.com/OpenXRay/xray-16/blob/${version}/License.txt";
      };
      maintainers = with maintainers; [ OPNA2608 ];
      platforms = [ "x86_64-linux" "i686-linux" ];
  