anchor.diff:  , libdrm, libffi, libICE, libSM
   , libX11, libXcomposite, libXext, libXmu, libXrender, libxcb
   , libxml2, libxslt, ncurses, zlib
  -, qtbase, qtdeclarative, qtquick1, qtwebkit
  +, qtbase, qtdeclarative, qtwebkit
   }:
   
   # this package contains the daemon version of dropbox
  
positive.code: let
    # NOTE: When updating, please also update in current stable,
    # as older versions stop working
    version = "4.4.29";
    sha256 =
      {
        "x86_64-linux" = "1ff01vqi9jiwhkqm81rh321bsz4brl11xal2xzm9gll7s2m8lz06";
        "i686-linux" = "0lwvvyxy5xyxh0b2g8a9bdy0y2hgpbak4n6q6b30167fvpj1ad1i";
      }."${stdenv.system}" or (throw "system ${stdenv.system} not supported");
  
    arch =
  
negative.code:       libX11 libXcomposite libXext libXmu libXrender libxcb libxml2 libxslt
        ncurses zlib
  
        qtbase qtdeclarative qtwebkit
      ];
  
    desktopItem = makeDesktopItem {
  