--- Makefile.in
+++ Makefile.in
@@ -159,17 +159,17 @@

 USE_AMALGAMATION = @USE_AMALGAMATION@

 # Object files for the SQLite library (non-amalgamation).
 #
 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_write.lo \
          func.lo global.lo hash.lo \
          icu.lo insert.lo journal.lo legacy.lo loadext.lo \
          main.lo malloc.lo mem0.lo mem1.lo mem2.lo mem3.lo mem5.lo \
          memjournal.lo \
          mutex.lo mutex_noop.lo mutex_os2.lo mutex_unix.lo mutex_w32.lo \
          notify.lo opcodes.lo os.lo os_os2.lo os_unix.lo os_win.lo \
@@ -204,16 +204,17 @@
   $(TOP)/../adapter/btreeInt.h \
   $(TOP)/src/build.c \
   $(TOP)/src/callback.c \
   $(TOP)/src/complete.c \
   $(TOP)/src/ctime.c \
   $(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 \
   $(TOP)/src/fault.c \
   $(TOP)/src/fkey.c \
   $(TOP)/src/func.c \
   $(TOP)/src/global.c \
   $(TOP)/src/hash.c \
@@ -381,16 +382,17 @@
 
 # Source code to the library files needed by the test fixture
 #
 TESTSRC2 = \
   $(TOP)/src/attach.c \
   $(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 \
   $(TOP)/src/expr.c \
   $(TOP)/src/func.c \
   $(TOP)/src/insert.c \
   $(TOP)/../adapter/wal.c \
   $(TOP)/src/mem5.c \
@@ -579,16 +581,20 @@
 db_encrypt.lo:	$(TOP)/../adapter/db_encrypt.c $(HDR) \
 		$(TOP)/../adapter/btreeInt.h
 	$(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/../adapter/db_encrypt.c
 
 db_pragma.lo:	$(TOP)/../adapter/db_pragma.c $(HDR) \
 		$(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
 
 delete.lo:	$(TOP)/src/delete.c $(HDR)
 	$(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/src/delete.c
 
 expr.lo:	$(TOP)/src/expr.c $(HDR)
--- 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
@@ -1854,6 +1856,13 @@
   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, SQLITE_COLL_NOCASE, 0,
                   nocaseCollatingFunc, 0);
--- tool/mksqlite3c.tcl
+++ tool/mksqlite3c.tcl
@@ -247,16 +247,17 @@
    pager.c
    wal.c

    btmutex.c
    btree.c
    backup.c
    db_encrypt.c
    db_pragma.c
+   db_sequence.c
    db_shell.c

    vdbemem.c
    vdbeaux.c
    vdbeapi.c
    vdbetrace.c
    vdbe.c
    vdbeblob.c