case $THIS_SUB_DEPENDS in
  DAV) is_depends_enabled $SPELL expat || is_depends_enabled $SPELL libxml2;;
  SSL) is_depends_enabled $SPELL $(get_spell_provider $SPELL SSL) || is_depends_enabled $SPELL gnutls ;;
    *) message "${PROBLEM_COLOR}bogus sub_depends: $SPELL $THIS_SUB_DEPENDS${DEFAULT_COLOR}"
       return 1;;
esac
