memsize_dbm        83 ext/dbm/dbm.c      {0, free_dbm, memsize_dbm,},
memsize_dbm       138 ext/gdbm/gdbm.c     {0, free_dbm, memsize_dbm,},
memsize_dbm       114 ext/sdbm/init.c     {0, free_sdbm, memsize_dbm,},