anchor.diff:  #       provided:
   #         gdata requires libgdata
   #         geolocation requires libchamplain
  -#         python requires python
   , enableLdap ? false
   , enableNetworkManager ? false
   , enablePgp ? true
  
positive.code:     ++ optional (!enablePluginArchive) "--disable-archive-plugin"
      ++ optional (!enablePluginFancy) "--disable-fancy-plugin"
      ++ optional (!enablePluginPdf) "--disable-pdf_viewer-plugin"
      ++ optional (!enablePluginRavatar) "--disable-libravatar-plugin"
      ++ optional (!enablePluginRssyl) "--disable-rssyl-plugin"
      ++ optional (!enablePluginSmime) "--disable-smime-plugin"
  
negative.code: { fetchurl, stdenv, wrapGAppsHook, autoreconfHook
  , curl, dbus, dbus-glib, enchant, gtk2, gnutls, gnupg, gpgme, hicolor-icon-theme
  , libarchive, libcanberra-gtk2, libetpan, libnotify, libsoup, libxml2, networkmanager
  , openldap, perl, pkgconfig, poppler, python, shared-mime-info, webkitgtk24x-gtk2
  , glib-networking, gsettings-desktop-schemas, libSM, libytnef
  
  # Build options
  