anchor.diff:      cat <<END > $out/share/dbus-1/system-services/uk.org.thekelleys.dnsmasq.service
       [D-BUS Service]
       Name=uk.org.thekelleys.dnsmasq
  -    Exec=$out/sbin/dnsmasq -k -1
  +    Exec=$out/bin/dnsmasq -k -1
       User=root
       SystemdService=dnsmasq.service
       END
     '';
   
  -  buildInputs = [ pkgconfig dbus_libs nettle ];
  +  nativeBuildInputs = [ pkgconfig ];
  +  buildInputs = [ dbus_libs nettle libidn ]
  +    ++ optional stdenv.isLinux libnetfilter_conntrack;
   
  -  meta = with stdenv.lib; {
  +  meta = {
       description = "An integrated DNS, DHCP and TFTP server for small networks";
       homepage = http://www.thekelleys.org.uk/dnsmasq/doc.html;
       license = licenses.gpl2;
  
positive.code:     sha256 = "1xnqfaw2l78f4zw4z9sgr9nl9yc233gxc3sd7hxapz2k7q883zqb";
    };
  
    # Can't rely on make flags because of space in one of the parameters
    buildPhase = ''
      make COPTS="-DHAVE_DNSSEC -DHAVE_DBUS"
    '';
  
    # make flags used for installation only
    makeFlags = "DESTDIR= BINDIR=$(out)/bin MANDIR=$(out)/man LOCALEDIR=$(out)/share/locale";
  
    postInstall = ''
      install -Dm644 dbus/dnsmasq.conf $out/etc/dbus-1/system.d/dnsmasq.conf
  
negative.code: { stdenv, fetchurl, pkgconfig, dbus_libs, nettle, libidn, libnetfilter_conntrack }:
  
  with stdenv.lib;
  let
    copts = concatStringsSep " " ([
      "-DHAVE_DBUS"
      "-DHAVE_IDN"
      "-DHAVE_DNSSEC"
    ] ++ optionals stdenv.isLinux [
      "-DHAVE_CONNTRACK"
    ]);
  in
  stdenv.mkDerivation rec {
    name = "dnsmasq-2.73";
  
  