anchor.diff:          -e "s|\(#define CONST_DEFAULT_CALLBACKS_DIR\).*|\1 \"$out/share/ntopng/scripts/callbacks\"|g" \
           -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
     '';
   
     meta = with stdenv.lib; {
  
positive.code:     ./0002-Remove-requirement-to-have-writeable-callback-dir.patch
    ];
  
    buildInputs = [ libpcap gnutls libgcrypt libxml2 glib geoip sqlite which ];
  
    preBuild = ''
      sed -e "s|^SHELL=.*|SHELL=${stdenv.shell}|" \
          -e "s|/usr/local|$out|g" \
          -e "s|/bin/rm|rm|g" \
          -i Makefile
  
      sed -e "s|^SHELL=.*|SHELL=${stdenv.shell}|" \
          -e "s|/usr/local|$out|g" \
          -e "s|/opt/local|/non-existing-dir|g" \
          -i configure
  
      sed -e "s|/usr/local|$out|g" \
          -i Ntop.cpp
  
  
negative.code: { stdenv, fetchurl, libpcap, gnutls, libgcrypt, libxml2, glib, geoip, sqlite
  , which, autoreconfHook, subversion, pkgconfig, groff
  }:
  
  # ntopng includes LuaJIT, mongoose, rrdtool and zeromq in its third-party/
  # directory.
  
  stdenv.mkDerivation rec {
    name = "ntopng-1.2.0_r8116";
  
    geoLiteCity = fetchurl {
      url = "http://geolite.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz";
      sha256 = "1rv5yx5xgz04ymicx9pilidm19wh01ql2klwjcdakv558ndxdzd5";
    };
  
    geoLiteCityV6 = fetchurl {
      url = "http://geolite.maxmind.com/download/geoip/database/GeoLiteCityv6-beta/GeoLiteCityv6.dat.gz";
      sha256 = "0j974qpi92wwnibq46h16vxpcz7yy8bbqc4k8kmby1yx994k33v4";
    };
  
    geoIPASNum = fetchurl {
      url = "http://geolite.maxmind.com/download/geoip/database/asnum/GeoIPASNum.dat.gz";
      sha256 = "1msnbls66npq001nmf1wmkrh6vyacgi8g5phfm1c34cz7vqnh683";
    };
  
    geoIPASNumV6 = fetchurl {
      url = "http://geolite.maxmind.com/download/geoip/database/asnum/GeoIPASNumv6.dat.gz";
      sha256 = "126syia75mkxs6xfinfp70xcfq6a3rgfmh673pzzkwxya393lbdn";
    };
  
    src = fetchurl {
      url = "mirror://sourceforge/project/ntop/ntopng/${name}.tgz";
      sha256 = "0y7xc0l77k2qi2qalwfqiw2z361hdypirfv4k5gi652pb20jc9j6";
    };
  
    patches = [
  