anchor.diff:          -e "s|\(#define CONST_DEFAULT_INSTALL_DIR\).*|\1 \"$out/share/ntopng\"|g" \
           -i ntop_defines.h
   
  -    gunzip -c $geoLiteCity > httpdocs/geoip/GeoLiteCity.dat
  -    gunzip -c $geoLiteCityV6 > httpdocs/geoip/GeoLiteCityv6.dat
  -    gunzip -c $geoIPASNum > httpdocs/geoip/GeoIPASNum.dat
  -    gunzip -c $geoIPASNumV6 > httpdocs/geoip/GeoIPASNumv6.dat
  +    rmdir httpdocs/geoip
  +    ln -s ${geolite-legacy}/share/GeoIP httpdocs/geoip
     '';
   
     meta = with stdenv.lib; {
  
positive.code: 
  stdenv.mkDerivation rec {
    name = "ntopng-1.2.1";
  
    geoLiteCity = fetchurl {
      url = "http://geolite.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz";
      sha256 = "1xqjyz9xnga3dvhj0f38hf78wv781jflvqkxm6qni3sj781nfr4a";
    };
  
    geoLiteCityV6 = fetchurl {
      url = "http://geolite.maxmind.com/download/geoip/database/GeoLiteCityv6-beta/GeoLiteCityv6.dat.gz";
      sha256 = "03s41ffc5a13qy5kgx8jqya97jkw2qlvdkak98hab7xs0i17z9pd";
    };
  
    geoIPASNum = fetchurl {
      url = "http://geolite.maxmind.com/download/geoip/database/asnum/GeoIPASNum.dat.gz";
      sha256 = "1h766l8dsfgzlrz0q76877xksaf5qf91nwnkqwb6zl1gkczbwy6p";
    };
  
    geoIPASNumV6 = fetchurl {
      url = "http://geolite.maxmind.com/download/geoip/database/asnum/GeoIPASNumv6.dat.gz";
      sha256 = "0dwi9b3amfpmpkknf9ipz2r8aq05gn1j2zlvanwwah3ib5cgva9d";
    };
  
    src = fetchurl {
      url = "mirror://sourceforge/project/ntop/ntopng/${name}.tgz";
  
negative.code:     ./0002-Remove-requirement-to-have-writeable-callback-dir.patch
    ];
  
    buildInputs = [ libpcap gnutls libgcrypt libxml2 glib geoip geolite-legacy
      sqlite which autoreconfHook subversion pkgconfig groff ];
  
    preConfigure = ''
      find . -name Makefile.in | xargs sed -i "s|/bin/rm|rm|"
  