anchor.diff:  , enableNetworkManager ? config.networking.networkmanager.enable or false
   , enablePgp ? true
   , enablePluginArchive ? false
  +, enablePluginLitehtmlViewer ? false
   , enablePluginNotificationDialogs ? true
   , enablePluginNotificationSounds ? true
   , enablePluginPdf ? false
  
positive.code: { config, fetchurl, stdenv, wrapGAppsHook, autoreconfHook
  , curl, dbus, dbus-glib, enchant, gtk2, gnutls, gnupg, gpgme
  , libarchive, libcanberra-gtk2, libetpan, libnotify, libsoup, libxml2, networkmanager
  , openldap, perl, pkgconfig, poppler, python, shared-mime-info
  , glib-networking, gsettings-desktop-schemas, libSM, libytnef, libical
  
negative.code:     ++ optional enablePluginArchive libarchive
      ++ optional enablePluginNotificationSounds libcanberra-gtk2
      ++ optional enablePluginNotificationDialogs libnotify
      ++ optional enablePluginLitehtmlViewer gumbo
      ++ optional enablePluginRssyl libxml2
      ++ optional enableNetworkManager networkmanager
      ++ optional enableLdap openldap
  