anchor.diff:      install -m 755 bin/VBoxControl $out/bin
       install -m 755 bin/VBoxClient-all $out/bin
   
  +    wrapProgram $out/bin/VBoxClient-all \
  +            --prefix PATH : "${which}/bin"
  +
       # Install OpenGL libraries
       ensureDir $out/lib
       cp -v lib/VBoxOGL*.so $out/lib
  
positive.code: { stdenv, fetchurl, lib, patchelf, cdrkit, kernel
  , libX11, libXt, libXext, libXmu, libXcomposite, libXfixes, libXrandr, libXcursor}:
  
  stdenv.mkDerivation {
  
negative.code:     sha256 = "1pyfgrcdmw6zf3yxgzcd8c5qzqqn62bz4085ka453gfmi9d65lys";
    };
    KERN_DIR = "${kernel}/lib/modules/*/build";
    buildInputs = [ patchelf cdrkit makeWrapper ];
  
    installPhase = ''
      ensureDir $out
      cp -r install/* $out
  
    '';
    
    buildCommand = ''
      ${if stdenv.system == "i686-linux" then ''
          isoinfo -J -i $src -x /VBoxLinuxAdditions-x86.run > ./VBoxLinuxAdditions-x86.run
  