anchor.diff:    pgpool95 = pgpool.override { postgresql = postgresql95; };
   
     pgpool = callPackage ../servers/sql/pgpool/default.nix {
  -    pam = if stdenv.isLinux then pam else null;
       libmemcached = null; # Detection is broken upstream
     };
   
  
positive.code:       dbus libuuid openssl gperf m4 libevdev tradcpp libinput mcpp makeWrapper autoreconfHook
        autoconf automake libtool xmlto asciidoc flex bison python mtdev pixman;
      mesa = mesa_noglu;
      udev = if stdenv.isLinux then udev else null;
      libdrm = if stdenv.isLinux then libdrm else null;
    } // { inherit xlibsWrapper; } );
  
    xwayland = callPackage ../servers/x11/xorg/xwayland.nix { };
  
negative.code:             monolithic = true;
              daemon = false;
              client = false;
              withKDE = true;
              qt = if withKDE then qt4 else qt5; # KDE supported quassel cannot build with qt5 yet (maybe in 0.12.0)
            };
  
  