anchor.diff:    meta = {
       description = "A reverse proxy and lightweight webserver";
       homepage    = http://nginx.org;
  -    license     = stdenv.lib.licenses.bsd2;
  -    platforms   = stdenv.lib.platforms.all;
  -    maintainers = with stdenv.lib.maintainers; [ thoughtpolice raskin ];
  +    license     = licenses.bsd2;
  +    platforms   = platforms.all;
  +    maintainers = with maintainers; [ thoughtpolice raskin ];
     };
   }
  
positive.code: 
    buildInputs =
      [ openssl zlib pcre libxml2 libxslt gd geoip
      ] ++ stdenv.lib.optional fullWebDAV expat;
  
    patches = if syslog then [ "${syslog-ext}/syslog-1.5.6.patch" ] else [];
  
  
negative.code:     rev = "0c6e05d3125a97892a250e9ba8b7674163ba500b";
      sha256 = "e121d97fd3c81c64e6cbf6902bbcbdb01be9ac985c6832d40434379d5e998eaf";
    };
  
    echo-ext = fetchgit {
      url = https://github.com/openresty/echo-nginx-module.git;
      rev = "refs/tags/v0.53";
      sha256 = "90d4e3a49c678019f4f335bc18529aa108fcc9cfe0747ea4e2f6084a70da2868";
    };
  in
  
  stdenv.mkDerivation rec {
  