[PATCH] Berkeley DB 4 support for 21.5

I recently upgraded to SleepyCats DB 4 and XEmacs from CVS and database.c stopped compiling. I traced it back to an additional parameter being added in SleepyCat 4 release in the DB->open . int DB->open(DB *db, DB_TXN *txnid, const char *file, const char *database, DBTYPE type, u_int32_t flags, int mode); Attached is a patch adding support for DB 4. I haven't actually used it against a DB database, so it might break elsewhere, but it should work fine. Thanks, Nelson -- Nelson Ferreira