anchor.diff:  
     meta = {
       description = "Open-source XMPP application server written in Erlang";
  -    license = stdenv.lib.licenses.gpl2;
  +    license = lib.licenses.gpl2;
       homepage = http://www.ejabberd.im;
  -    maintainers = [ lib.maintainers.sander ];
  +    platforms = lib.platforms.linux;
  +    maintainers = [ lib.maintainers.sander lib.maintainers.abbradar ];
     };
   }
  
positive.code:   };
  
  in stdenv.mkDerivation rec {
    version = "16.01";
    name = "ejabberd-${version}";
  
    src = fetchurl {
      url = "http://www.process-one.net/downloads/ejabberd/${version}/${name}.tgz";
      sha256 = "10fnsw52gxybw731yka63ma8mj39g4i0nsancwp9nlvhb2flgk72";
    };
  
    nativeBuildInputs = [ fakegit ];
  
negative.code:   # Some dependencies are from another packages. Try commenting them out; then during build
    # you'll get necessary revision information.
    ejdeps = {
      lager = fetchFromGitHub {
        owner = "basho";
        repo = "lager";
  