anchor.diff:      done
       
       # Create and fix desktop item
  -    ensureDir $out/share/applications
  +    mkdir -p $out/share/applications
       sed -i -e "s|Icon=VBox|Icon=$out/virtualbox/VBox.png|" $out/virtualbox/virtualbox.desktop
       ln -sfv $out/virtualbox/virtualbox.desktop $out/share/applications
     '';
  
positive.code: { stdenv, fetchurl, lib, iasl, dev86, pam, libxslt, libxml2, libX11, xproto, libXext
  , libXcursor, libXmu, qt4, libIDL, SDL, hal, libcap, zlib, libpng, glib, kernel
  , python, which, alsaLib, curl, gawk
  , xorriso, makeself, perl, jdk, pkgconfig
  }:
  
negative.code: 
    buildInputs =
      [ iasl dev86 libxslt libxml2 xproto libX11 libXext libXcursor qt4 libIDL SDL
        libcap glib kernel python alsaLib curl pam xorriso makeself perl jdk
        pkgconfig which libXmu
      ];
  
  