anchor.diff:  in
   
   stdenv.mkDerivation rec {
  -  version = "0.4.1";
  +  version = "0.4.2";
     name = "qjackctl-${version}";
   
     src = fetchurl {
       url = "mirror://sourceforge/qjackctl/${name}.tar.gz";
  -    sha256 = "1ldzw84vb0x51y7r2sizx1hj4js9sr8s1v8g55nc2npmm4g4w0lq";
  +    sha256 = "cf1c4aff22f8410feba9122e447b1e28c8fa2c71b12cfc0551755d351f9eaf5e";
     };
   
     buildInputs = [
       alsa-lib
       dbus
       jack2_lib
  -    qt5.qtbase
  -    qt5.qttranslations
  -    qt5.qtx11extras
  +    qt5
  +    xorg.libX11
  +    xorg.libxcb
  +    xorg.xproto
     ];
   
     configureFlags = [
  
positive.code:     "--disable-stacktrace"
    ];
  
    NIX_CFLAGS_COMPILE = optionals (portaudio != null) [
      "-I${portaudio}/include"
    ];
  
    NIX_LDFLAGS = optionals (portaudio != null) [
      "-L${portaudio}/lib"
    ];
  
    meta = with stdenv.lib; {
      description = "Application to control the JACK sound server daemon";
      homepage = http://qjackctl.sourceforge.net/;
  
negative.code: , jack2_lib
  , portaudio
  , qt5
  , xorg
  }:
  
  let
  