case $THIS_SUB_DEPENDS in
    ZLIB) message "pciutils with zlib requested, forcing enabled zlib dependency" &&
          depends zlib "ZLIB=yes" ;;
 NO_ZLIB) message "pciutils without zlib requested, forcing disabled zlib dependency" &&
          depends zlib "ZLIB=no" ;;
       *) message "${PROBLEM_COLOR}bogus sub_depends: $SPELL $THIS_SUB_DEPENDS${DEFAULT_COLOR}"
          return 1 ;;
esac
