anchor.diff:    src = fetchurl {
       name = "${name}.tar.gz";
       url = "https://github.com/OpenRA/OpenRA/archive/release-${version}.tar.gz";
  -    sha256 = "0dgaxy1my5r3sr3l3gw79v89dsc7179pasj2bibswlv03wsjgqbi";
  +    sha256 = "1vr5bvdkh0n5569ga2h7ggj43vnzr37hfqkfnsis1sg4vgwrnzr7";
     };
   
     dontStrip = true;
   
     buildInputs = with dotnetPackages;
  -     [ NUnit NewtonsoftJson MonoNat FuzzyLogicLibrary SmartIrc4net SharpZipLib MaxMindGeoIP2 MaxMindDb SharpFont StyleCopMSBuild StyleCopPlusMSBuild RestSharp ]
  +     [ NUnit3 NewtonsoftJson MonoNat FuzzyLogicLibrary SmartIrc4net SharpZipLib MaxMindGeoIP2 MaxMindDb SharpFont StyleCopMSBuild StyleCopPlusMSBuild RestSharp NUnitConsole ]
        ++ [ lua gnome3.zenity ];
     nativeBuildInputs = [ mono makeWrapper lua pkgconfig ];
   
  
positive.code: }:
  
  let
    version = "20151224";
  in stdenv.mkDerivation rec {
    name = "openra-${version}";
  
  
negative.code:     "${StyleCopPlusMSBuild}/lib/dotnet/StyleCopPlus.MSBuild/StyleCopPlus.dll"
      "${RestSharp}/lib/dotnet/RestSharp/net4-client/RestSharp.dll"
      "${NUnit}/lib/dotnet/NUnit/nunit.framework.*"
      "${NUnitConsole}/lib/dotnet/NUnit.Console/*"
      "${NewtonsoftJson}/lib/dotnet/Newtonsoft.Json/Newtonsoft.Json.dll"
      ];
      movePackages = [
        ( let filename = "Eluant.dll"; in { origin = fetchurl {
            url = "https://github.com/OpenRA/Eluant/releases/download/20160124/${filename}";
            sha256 = "1c20whz7dzfhg3szd62rvb79745x5iwrd5pp62j3bbj1q9wpddmb";
          }; target = filename; })
  
        ( let filename = "SDL2-CS.dll"; in { origin = fetchurl {
            url = "https://github.com/OpenRA/SDL2-CS/releases/download/20151227/${filename}";
            sha256 = "0gqw2wg37cqhhlc2a9lfc4ndkyfi4m8bkv7ckxbawgydjlknq83n";
          }; target = filename; })
  
        ( let filename = "SDL2-CS.dll.config"; in { origin = fetchurl {
            url = "https://github.com/OpenRA/SDL2-CS/releases/download/20151227/${filename}";
            sha256 = "15709iscdg44wd33szw5y0fdxwvqfjw8v3xjq6a0mm46gr7mkw7g";
          }; target = filename; })
  
        ( let filename = "OpenAL-CS.dll"; in { origin = fetchurl {
            url = "https://github.com/OpenRA/OpenAL-CS/releases/download/20151227/${filename}";
            sha256 = "0lvyjkn7fqys97wym8rwlcp6ay2z059iabfvlcxhlrscjpyr2cyk";
          }; target = filename; })
  
        ( let filename = "OpenAL-CS.dll.config"; in { origin = fetchurl {
            url = "https://github.com/OpenRA/OpenAL-CS/releases/download/20151227/${filename}";
            sha256 = "0wcmk3dw26s93598ck5jism5609v0y233i0f1b76yilyfimg9sjq";
          }; target = filename; })
  
        ( let filename = "GeoLite2-Country.mmdb.gz"; in { origin = fetchurl {
            url = "http://geolite.maxmind.com/download/geoip/database/${filename}";
            sha256 = "0a82v0sj4zf5vigrn1pd6mnbqz6zl3rgk9nidqqzy836as2kxk9v";
          }; target = filename; })
      ];
    in ''
      mkdir thirdparty/download/
  
      ${stdenv.lib.concatMapStringsSep "\n" (from: "cp -r ${from} thirdparty/download") dotnetPackagesDlls}
      ${stdenv.lib.concatMapStringsSep "\n" ({origin, target}: "cp ${origin} thirdparty/download/${target}") movePackages}
  
      make dependencies
  