anchor.diff:      license = "AGPLv3";
   
       maintainers = [ stdenv.lib.maintainers.bluescreen303 ];
  -    platforms = stdenv.lib.platforms.all;
  +    platforms = stdenv.lib.platforms.linux;
     };
   }
  
positive.code: 
  with stdenv.lib;
  
  stdenv.mkDerivation rec {
    name = "mongodb-2.2.0";
  
  
negative.code: 
    buildNativeInputs = [ scons which ];
  
    patches = [ installerPatch ];
  
    enableParallelBuilding = true;
  
    postPatch = ''
      substituteInPlace SConstruct --replace "Environment( BUILD_DIR" "Environment( ENV = os.environ, BUILD_DIR"
    '' + optionalString useV8 ''
      substituteInPlace SConstruct --replace "#/../v8" "${v8}" \
  