case "$THIS_SUB_DEPENDS" in
  CEGUI) is_depends_enabled $SPELL cegui && return 0 ;;
  DEVIL) is_depends_enabled $SPELL devil && return 0 ;;
    *) message "${PROBLEM_COLOR}bogus sub_depends: $SPELL $THIS_SUB_DEPENDS${DEFAULT_COLOR}" ;
   return 1 ;;
esac