BTREEMAGIC        184 libdb/bt_close.c 	m.magic = BTREEMAGIC;
BTREEMAGIC        248 libdb/bt_open.c 		if (m.magic == BTREEMAGIC)
BTREEMAGIC        259 libdb/bt_open.c 		if (m.magic != BTREEMAGIC || m.version != BTREEVERSION)