anchor.diff:        "--disable-pgpmime-plugin"
       ]
       ++ optional (!enablePluginArchive) "--disable-archive-plugin"
  +    ++ optional (!enablePluginLitehtmlViewer) "--disable-litehtml_viewer-plugin"
       ++ optional (!enablePluginPdf) "--disable-pdf_viewer-plugin"
       ++ optional (!enablePluginPython) "--disable-python-plugin"
       ++ optional (!enablePluginRavatar) "--disable-libravatar-plugin"
  
positive.code:     ++ optional enablePluginArchive libarchive
      ++ optional enablePluginNotificationSounds libcanberra-gtk2
      ++ optional enablePluginNotificationDialogs libnotify
      ++ optional enablePluginRssyl libxml2
      ++ optional enableNetworkManager networkmanager
      ++ optional enableLdap openldap
  
negative.code: { config, fetchurl, stdenv, wrapGAppsHook, autoreconfHook
  , curl, dbus, dbus-glib, enchant, gtk2, gnutls, gnupg, gpgme, gumbo
  , libarchive, libcanberra-gtk2, libetpan, libnotify, libsoup, libxml2, networkmanager
  , openldap, perl, pkgconfig, poppler, python, shared-mime-info
  , glib-networking, gsettings-desktop-schemas, libSM, libytnef, libical
  