anchor.diff:      iso-codes
       libxml2
       pango
  +    systemd_lib
     ] ++ optionals (xorg != null) [
       xorg.libX11
       xorg.libXext
  
positive.code: , libxml2
  , pango
  , python
  , wayland
  , xorg
  
  
negative.code:     "--disable-debug-tools"
      "--disable-installed-tests"
      "--disable-always-build-tests"
      "--${boolEn (systemd_lib != null)}-udev"
      "--${boolEn (gobject-introspection != null)}-introspection"
      "--disable-gtk-doc"
      "--disable-gtk-doc-html"
  