anchor.diff:      "--without-system-mdds"
       # https://github.com/NixOS/nixpkgs/commit/5c5362427a3fa9aefccfca9e531492a8735d4e6f
       "--without-system-orcus"
  +    "--without-system-xmlsec"
     ];
   
     checkPhase = ''
  
positive.code:       python3 sablotron sane-backends unzip vigra which zip zlib
        mdds bluez5 glibc libcmis libwps libabw libzmf libtool
        libxshmfence libatomic_ops graphite2 harfbuzz gpgme utillinux
        librevenge libe-book libmwaw glm glew ncurses xmlsec epoxy
        libodfgen CoinMP librdf_rasqal defaultIconTheme gettext
        gdb
      ]
  
negative.code: , libatomic_ops, graphite2, harfbuzz, libodfgen, libzmf
  , librevenge, libe-book, libmwaw, glm, glew, gst_all_1
  , gdb, commonsLogging, librdf_rasqal, wrapGAppsHook
  , defaultIconTheme, glib, ncurses, epoxy, gpgme
  , langs ? [ "ca" "de" "en-GB" "en-US" "eo" "es" "fr" "hu" "it" "nl" "pl" "ru" "sl" ]
  , withHelp ? true
  , kdeIntegration ? false
  