anchor.diff:      cairo
       dbus.lib
       expat
  -    ffmpeg_3
  +    ffmpeg
       fontconfig
       freetype
       gdk-pixbuf
  
positive.code: , cups
  , dbus
  , expat
  , ffmpeg_3
  , fontconfig
  , freetype
  , gdk-pixbuf
  
negative.code: 
  stdenv.mkDerivation rec {
    pname = "wpsoffice";
    version = "11.1.0.9615";
  
    src = fetchurl {
      url = "http://wdl1.pcfg.cache.wpscdn.com/wpsdl/wpsoffice/download/linux/9615/wps-office_11.1.0.9615.XA_amd64.deb";
      sha256 = "0dpd4njpizclllps3qagipycfws935rhj9k5gmdhjfgsk0ns188w";
    };
    unpackCmd = "dpkg -x $src .";
    sourceRoot = ".";
  