anchor.diff:  
     cmakeFlags = [
       "-DGTK2_GLIBCONFIG_INCLUDE_DIR=${glib.out}/lib/glib-2.0/include"
  -    "-DGTK2_GDKCONFIG_INCLUDE_DIR=${gtk}/lib/gtk-2.0/include"
  +    "-DGTK2_GDKCONFIG_INCLUDE_DIR=${gtk2.out}/lib/gtk-2.0/include"
     ];
   
     meta = with stdenv.lib; {
  
positive.code: { stdenv, fetchFromGitHub, cmake, libpcap, libnet, zlib, curl, pcre,
    openssl, ncurses, glib, gtk, atk, pango, flex, bison }:
  
  stdenv.mkDerivation rec {
    name = "ettercap-${version}";
  
negative.code: 
    buildInputs = [
      cmake libpcap libnet zlib curl pcre openssl ncurses
      glib gtk2 atk pango flex bison
    ];
  
    preConfigure = ''
  