--- Makefile.in
+++ Makefile.in
@@ -164,7 +164,7 @@
 LIBOBJS0 = alter.lo analyze.lo attach.lo auth.lo \
          backup.lo bitvec.lo btmutex.lo btree.lo build.lo \
          callback.lo complete.lo ctime.lo date.lo db_encrypt.lo db_pragma.lo \
-         db_shell.lo delete.lo expr.lo fault.lo fkey.lo \
+         db_sequence.lo db_shell.lo delete.lo expr.lo fault.lo fkey.lo \
          fts3.lo fts3_aux.lo fts3_expr.lo fts3_hash.lo fts3_icu.lo \
          fts3_porter.lo fts3_snippet.lo fts3_tokenizer.lo fts3_tokenizer1.lo \
          fts3_tokenize_vtab.lo \
@@ -211,6 +211,7 @@
   $(TOP)/src/date.c \
   $(TOP)/../adapter/db_encrypt.c \
   $(TOP)/../adapter/db_pragma.c \
+  $(TOP)/../adapter/db_sequence.c \
   $(TOP)/../adapter/db_shell.c \
   $(TOP)/src/delete.c \
   $(TOP)/src/expr.c \
@@ -410,6 +411,7 @@
   $(TOP)/../adapter/backup.c \
   $(TOP)/src/bitvec.c \
   $(TOP)/../adapter/btree.c \
+  $(TOP)/../adapter/db_sequence.c \
   $(TOP)/src/build.c \
   $(TOP)/src/ctime.c \
   $(TOP)/src/date.c \
@@ -626,6 +628,10 @@
 		$(TOP)/../adapter/btreeInt.h
 	$(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/../adapter/db_pragma.c
 
+db_sequence.lo:	$(TOP)/../adapter/db_sequence.c $(HDR) \
+		$(TOP)/../adapter/btreeInt.h
+	$(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/../adapter/db_sequence.c
+
 db_shell.lo:	$(TOP)/../adapter/db_shell.c $(HDR) \
 		$(TOP)/../adapter/btreeInt.h
 	$(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/../adapter/db_shell.c
--- src/main.c
+++ src/main.c
@@ -55,6 +55,8 @@
 */
 int sqlite3_threadsafe(void){ return SQLITE_THREADSAFE; }
 
+extern int add_sequence_functions(sqlite3 *db);
+
 #if !defined(SQLITE_OMIT_TRACE) && defined(SQLITE_ENABLE_IOTRACE)
 /*
 ** If the following function pointer is not NULL and if
@@ -2532,6 +2534,13 @@
   db->pDfltColl = sqlite3FindCollSeq(db, SQLITE_UTF8, "BINARY", 0);
   assert( db->pDfltColl!=0 );
 
+  /*
+  ** Berkley DB customization!
+  ** Register any Berkeley DB specific extension functions.
+  */
+  add_sequence_functions(db);
+  /* End Berkeley DB customization. */
+
   /* Also add a UTF-8 case-insensitive collation sequence. */
   createCollation(db, "NOCASE", SQLITE_UTF8, 0, nocaseCollatingFunc, 0);
 
--- tool/mksqlite3c.tcl
+++ tool/mksqlite3c.tcl
@@ -271,6 +271,7 @@
    backup.c
    db_encrypt.c
    db_pragma.c
+   db_sequence.c
    db_shell.c
 
    vdbemem.c