diff --git a/Makefile.msc b/Makefile.msc
index ef351637f9..ed388c85f0 100644
--- a/Makefile.msc
+++ b/Makefile.msc
@@ -22,8 +22,22 @@ USE_AMALGAMATION = 1
 USE_FULLWARN = 0
 !ENDIF
 
+# Set this non-0 to use "stdcall" calling convention for the core library
+# and shell executable.
+#
+!IFNDEF USE_STDCALL
+USE_STDCALL = 0
+!ENDIF
+
+# Set this non-0 to have the shell executable link against the core dynamic
+# link library.
+#
+!IFNDEF DYNAMIC_SHELL
+DYNAMIC_SHELL = 0
+!ENDIF
+
 # If necessary, create a list of harmless compiler warnings to disable when
-# compiling the build tools.  For the SQLite source code itself, warnings,
+# compiling the various tools.  For the SQLite source code itself, warnings,
 # if any, will be disabled from within it.
 #
 !IFNDEF NO_WARN
@@ -256,9 +270,9 @@ NSDKLIBPATH = $(NSDKLIBPATH:\\=\)
 # will run on the platform that is doing the build.
 #
 !IF $(USE_FULLWARN)!=0
-BCC = $(NCC) -W4
+BCC = $(NCC) -nologo -W4
 !ELSE
-BCC = $(NCC) -W3
+BCC = $(NCC) -nologo -W3
 !ENDIF
 
 # Check if assembly code listings should be generated for the source
@@ -281,14 +295,106 @@ NLTLIBPATHS = "/LIBPATH:$(NCRTLIBPATH)" "/LIBPATH:$(NSDKLIBPATH)"
 # same unless your are cross-compiling.)
 #
 !IF $(USE_FULLWARN)!=0
-TCC = $(CC) -W4 -DINCLUDE_MSVC_H=1
+TCC = $(CC) -nologo -W4 -DINCLUDE_MSVC_H=1
 !ELSE
-TCC = $(CC) -W3
+TCC = $(CC) -nologo -W3
 !ENDIF
 
 TCC = $(TCC) -DSQLITE_OS_WIN=1 -I. -I$(TOP) -I$(TOP)\src -fp:precise
 RCC = $(RC) -DSQLITE_OS_WIN=1 -I$(TOP) -I$(TOP)\src
 
+# Check if we want to use the "stdcall" calling convention when compiling.
+# This is not supported by the compilers for non-x86 platforms.  It should
+# also be noted here that building any target with these "stdcall" options
+# will most likely fail if the Tcl library is also required.  This is due
+# to how the Tcl library functions are declared and exported (i.e. without
+# an explicit calling convention, which results in "cdecl").
+#
+!IF $(USE_STDCALL)!=0
+!IF "$(PLATFORM)"=="x86"
+CORE_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl
+SHELL_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl
+!ELSE
+!IFNDEF PLATFORM
+CORE_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl
+SHELL_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl
+!ELSE
+CORE_CCONV_OPTS =
+SHELL_CCONV_OPTS =
+!ENDIF
+!ENDIF
+!ELSE
+CORE_CCONV_OPTS =
+SHELL_CCONV_OPTS =
+!ENDIF
+
+# These are additional compiler options used for the core library.
+#
+!IFNDEF CORE_COMPILE_OPTS
+!IF $(USE_STDCALL)!=0
+CORE_COMPILE_OPTS = $(CORE_CCONV_OPTS) -DSQLITE_API=__declspec(dllexport)
+!ELSE
+CORE_COMPILE_OPTS = $(CORE_CCONV_OPTS)
+!ENDIF
+!ENDIF
+
+# These are the additional targets that the core library should depend on
+# when linking.
+#
+!IFNDEF CORE_LINK_DEP
+!IF $(USE_STDCALL)!=0
+CORE_LINK_DEP =
+!ELSE
+CORE_LINK_DEP = sqlite3.def
+!ENDIF
+!ENDIF
+
+# These are additional linker options used for the core library.
+#
+!IFNDEF CORE_LINK_OPTS
+!IF $(USE_STDCALL)!=0
+CORE_LINK_OPTS =
+!ELSE
+CORE_LINK_OPTS = /DEF:sqlite3.def
+!ENDIF
+!ENDIF
+
+# These are additional compiler options used for the shell executable.
+#
+!IFNDEF SHELL_COMPILE_OPTS
+!IF $(DYNAMIC_SHELL)!=0
+SHELL_COMPILE_OPTS = $(SHELL_CCONV_OPTS) -DSQLITE_API=__declspec(dllimport)
+!ELSE
+SHELL_COMPILE_OPTS = $(SHELL_CCONV_OPTS)
+!ENDIF
+!ENDIF
+
+# This is the core library that the shell executable should depend on.
+#
+!IFNDEF SHELL_CORE_DEP
+!IF $(DYNAMIC_SHELL)!=0
+SHELL_CORE_DEP = sqlite3.dll
+!ELSE
+SHELL_CORE_DEP = libsqlite3.lib
+!ENDIF
+!ENDIF
+
+# This is the core library that the shell executable should link with.
+#
+!IFNDEF SHELL_CORE_LIB
+!IF $(DYNAMIC_SHELL)!=0
+SHELL_CORE_LIB = sqlite3.lib
+!ELSE
+SHELL_CORE_LIB = libsqlite3.lib
+!ENDIF
+!ENDIF
+
+# These are additional linker options used for the shell executable.
+#
+!IFNDEF SHELL_LINK_OPTS
+SHELL_LINK_OPTS = $(SHELL_CORE_LIB)
+!ENDIF
+
 # Check if assembly code listings should be generated for the source
 # code files to be compiled.
 #
@@ -597,8 +703,11 @@ LTLINK = $(LTLINK) rpcrt4.lib
 # set this for you.  Otherwise, the linker will attempt
 # to deduce the binary type based on the object files.
 !IFDEF PLATFORM
-LTLINKOPTS = /MACHINE:$(PLATFORM)
-LTLIBOPTS = /MACHINE:$(PLATFORM)
+LTLINKOPTS = /NOLOGO /MACHINE:$(PLATFORM)
+LTLIBOPTS = /NOLOGO /MACHINE:$(PLATFORM)
+!ELSE
+LTLINKOPTS = /NOLOGO
+LTLIBOPTS = /NOLOGO
 !ENDIF
 
 # When compiling for use in the WinRT environment, the following
@@ -863,8 +972,7 @@ SRC4 = \
   $(TOP)\ext\icu\sqliteicu.h \
   $(TOP)\ext\icu\icu.c \
   $(TOP)\ext\rtree\rtree.h \
-  $(TOP)\ext\rtree\rtree.c
-SRC = $(SRC) \
+  $(TOP)\ext\rtree\rtree.c \
   $(TOP)\ext\session\sqlite3session.h \
   $(TOP)\ext\session\sqlite3session.c
 
@@ -1066,13 +1174,13 @@ libsqlite3.lib:	$(LIBOBJ)
 libtclsqlite3.lib:	tclsqlite.lo libsqlite3.lib
 	$(LTLIB) $(LTLIBOPTS) $(LTLIBPATHS) /OUT:$@ tclsqlite.lo libsqlite3.lib $(LIBTCL:tcl=tclstub) $(TLIBS)
 
-sqlite3.exe:	$(TOP)\src\shell.c libsqlite3.lib $(LIBRESOBJS) sqlite3.h
-	$(LTLINK) $(READLINE_FLAGS) $(TOP)\src\shell.c \
-		/link $(LTLINKOPTS) $(LTLIBPATHS) libsqlite3.lib $(LIBRESOBJS) $(LIBREADLINE) $(LTLIBS) $(TLIBS)
+sqlite3.exe:	$(TOP)\src\shell.c $(SHELL_CORE_DEP) $(LIBRESOBJS) sqlite3.h
+	$(LTLINK) $(SHELL_COMPILE_OPTS) $(READLINE_FLAGS) $(TOP)\src\shell.c \
+		/link /pdb:sqlite3sh.pdb $(LTLINKOPTS) $(SHELL_LINK_OPTS) $(LTLIBPATHS) $(LIBRESOBJS) $(LIBREADLINE) $(LTLIBS) $(TLIBS)
 
-mptester.exe:	$(TOP)\mptest\mptest.c libsqlite3.lib $(LIBRESOBJS) sqlite3.h
-	$(LTLINK) $(TOP)\mptest\mptest.c \
-		/link $(LTLINKOPTS) $(LTLIBPATHS) libsqlite3.lib $(LIBRESOBJS) $(LIBREADLINE) $(LTLIBS) $(TLIBS)
+mptester.exe:	$(TOP)\mptest\mptest.c $(SHELL_CORE_DEP) $(LIBRESOBJS) sqlite3.h
+	$(LTLINK) $(SHELL_COMPILE_OPTS) $(TOP)\mptest\mptest.c \
+		/link $(LTLINKOPTS) $(LTLIBPATHS) $(SHELL_LINK_OPTS) $(LIBRESOBJS) $(LIBREADLINE) $(LTLIBS) $(TLIBS)
 
 # This target creates a directory named "tsrc" and fills it with
 # copies of all of the C source code and header files needed to
@@ -1081,14 +1189,14 @@ mptester.exe:	$(TOP)\mptest\mptest.c libsqlite3.lib $(LIBRESOBJS) sqlite3.h
 # all that automatic generation.
 #
 .target_source:	$(SRC) $(TOP)\tool\vdbe-compress.tcl
-	-rmdir /S/Q tsrc
+	-rmdir /Q/S tsrc 2>NUL
 	-mkdir tsrc
 	for %i in ($(SRC1)) do copy /Y %i tsrc
 	for %i in ($(SRC2)) do copy /Y %i tsrc
 	for %i in ($(SRC3)) do copy /Y %i tsrc
 	for %i in ($(SRC4)) do copy /Y %i tsrc
 	for %i in ($(SRC5)) do copy /Y %i tsrc
-	del /Q tsrc\sqlite.h.in tsrc\parse.y
+	del /Q tsrc\sqlite.h.in tsrc\parse.y 2>NUL
 	$(TCLSH_CMD) $(TOP)\tool\vdbe-compress.tcl $(OPTS) < tsrc\vdbe.c > vdbe.new
 	move vdbe.new tsrc\vdbe.c
 	echo > .target_source
@@ -1114,7 +1222,7 @@ SQLITE3C = sqlite3.c
 # Rule to build the amalgamation
 #
 sqlite3.lo:	$(SQLITE3C)
-	$(LTCOMPILE) -c $(SQLITE3C)
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(SQLITE3C)
 
 # Rules to build the LEMON compiler generator
 #
@@ -1132,10 +1240,10 @@ lemon.exe:	$(TOP)\tool\lemon.c lempar.c
 #     opcodes.lo
 #
 parse.lo:	parse.c $(HDR)
-	$(LTCOMPILE) -c parse.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c parse.c
 
 opcodes.lo:	opcodes.c
-	$(LTCOMPILE) -c opcodes.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c opcodes.c
 
 # Rule to build the Win32 resources object file.
 #
@@ -1153,223 +1261,223 @@ $(LIBRESOBJS):	$(TOP)\src\sqlite3.rc $(HDR)
 # Rules to build individual *.lo files from files in the src directory.
 #
 alter.lo:	$(TOP)\src\alter.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\alter.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\alter.c
 
 analyze.lo:	$(TOP)\src\analyze.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\analyze.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\analyze.c
 
 attach.lo:	$(TOP)\src\attach.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\attach.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\attach.c
 
 auth.lo:	$(TOP)\src\auth.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\auth.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\auth.c
 
 backup.lo:	$(TOP)\src\backup.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\backup.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\backup.c
 
 bitvec.lo:	$(TOP)\src\bitvec.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\bitvec.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\bitvec.c
 
 btmutex.lo:	$(TOP)\src\btmutex.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\btmutex.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\btmutex.c
 
 btree.lo:	$(TOP)\src\btree.c $(HDR) $(TOP)\src\pager.h
-	$(LTCOMPILE) -c $(TOP)\src\btree.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\btree.c
 
 build.lo:	$(TOP)\src\build.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\build.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\build.c
 
 callback.lo:	$(TOP)\src\callback.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\callback.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\callback.c
 
 complete.lo:	$(TOP)\src\complete.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\complete.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\complete.c
 
 ctime.lo:	$(TOP)\src\ctime.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\ctime.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\ctime.c
 
 date.lo:	$(TOP)\src\date.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\date.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\date.c
 
 delete.lo:	$(TOP)\src\delete.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\delete.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\delete.c
 
 expr.lo:	$(TOP)\src\expr.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\expr.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\expr.c
 
 fault.lo:	$(TOP)\src\fault.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\fault.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\fault.c
 
 fkey.lo:	$(TOP)\src\fkey.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\fkey.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\fkey.c
 
 func.lo:	$(TOP)\src\func.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\func.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\func.c
 
 global.lo:	$(TOP)\src\global.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\global.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\global.c
 
 hash.lo:	$(TOP)\src\hash.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\hash.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\hash.c
 
 insert.lo:	$(TOP)\src\insert.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\insert.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\insert.c
 
 journal.lo:	$(TOP)\src\journal.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\journal.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\journal.c
 
 legacy.lo:	$(TOP)\src\legacy.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\legacy.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\legacy.c
 
 loadext.lo:	$(TOP)\src\loadext.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\loadext.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\loadext.c
 
 main.lo:	$(TOP)\src\main.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\main.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\main.c
 
 malloc.lo:	$(TOP)\src\malloc.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\malloc.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\malloc.c
 
 mem0.lo:	$(TOP)\src\mem0.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\mem0.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\mem0.c
 
 mem1.lo:	$(TOP)\src\mem1.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\mem1.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\mem1.c
 
 mem2.lo:	$(TOP)\src\mem2.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\mem2.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\mem2.c
 
 mem3.lo:	$(TOP)\src\mem3.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\mem3.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\mem3.c
 
 mem5.lo:	$(TOP)\src\mem5.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\mem5.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\mem5.c
 
 memjournal.lo:	$(TOP)\src\memjournal.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\memjournal.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\memjournal.c
 
 mutex.lo:	$(TOP)\src\mutex.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\mutex.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\mutex.c
 
 mutex_noop.lo:	$(TOP)\src\mutex_noop.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\mutex_noop.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\mutex_noop.c
 
 mutex_unix.lo:	$(TOP)\src\mutex_unix.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\mutex_unix.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\mutex_unix.c
 
 mutex_w32.lo:	$(TOP)\src\mutex_w32.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\mutex_w32.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\mutex_w32.c
 
 notify.lo:	$(TOP)\src\notify.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\notify.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\notify.c
 
 pager.lo:	$(TOP)\src\pager.c $(HDR) $(TOP)\src\pager.h
-	$(LTCOMPILE) -c $(TOP)\src\pager.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\pager.c
 
 pcache.lo:	$(TOP)\src\pcache.c $(HDR) $(TOP)\src\pcache.h
-	$(LTCOMPILE) -c $(TOP)\src\pcache.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\pcache.c
 
 pcache1.lo:	$(TOP)\src\pcache1.c $(HDR) $(TOP)\src\pcache.h
-	$(LTCOMPILE) -c $(TOP)\src\pcache1.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\pcache1.c
 
 os.lo:	$(TOP)\src\os.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\os.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\os.c
 
 os_unix.lo:	$(TOP)\src\os_unix.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\os_unix.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\os_unix.c
 
 os_win.lo:	$(TOP)\src\os_win.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\os_win.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\os_win.c
 
 pragma.lo:	$(TOP)\src\pragma.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\pragma.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\pragma.c
 
 prepare.lo:	$(TOP)\src\prepare.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\prepare.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\prepare.c
 
 printf.lo:	$(TOP)\src\printf.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\printf.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\printf.c
 
 random.lo:	$(TOP)\src\random.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\random.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\random.c
 
 resolve.lo:	$(TOP)\src\resolve.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\resolve.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\resolve.c
 
 rowset.lo:	$(TOP)\src\rowset.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\rowset.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\rowset.c
 
 select.lo:	$(TOP)\src\select.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\select.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\select.c
 
 status.lo:	$(TOP)\src\status.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\status.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\status.c
 
 table.lo:	$(TOP)\src\table.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\table.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\table.c
 
 threads.lo:	$(TOP)\src\threads.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\threads.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\threads.c
 
 tokenize.lo:	$(TOP)\src\tokenize.c keywordhash.h $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\tokenize.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\tokenize.c
 
 trigger.lo:	$(TOP)\src\trigger.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\trigger.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\trigger.c
 
 update.lo:	$(TOP)\src\update.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\update.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\update.c
 
 utf.lo:	$(TOP)\src\utf.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\utf.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\utf.c
 
 util.lo:	$(TOP)\src\util.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\util.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\util.c
 
 vacuum.lo:	$(TOP)\src\vacuum.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\vacuum.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\vacuum.c
 
 vdbe.lo:	$(TOP)\src\vdbe.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\vdbe.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\vdbe.c
 
 vdbeapi.lo:	$(TOP)\src\vdbeapi.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\vdbeapi.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\vdbeapi.c
 
 vdbeaux.lo:	$(TOP)\src\vdbeaux.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\vdbeaux.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\vdbeaux.c
 
 vdbeblob.lo:	$(TOP)\src\vdbeblob.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\vdbeblob.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\vdbeblob.c
 
 vdbemem.lo:	$(TOP)\src\vdbemem.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\vdbemem.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\vdbemem.c
 
 vdbesort.lo:	$(TOP)\src\vdbesort.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\vdbesort.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\vdbesort.c
 
 vdbetrace.lo:	$(TOP)\src\vdbetrace.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\vdbetrace.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\vdbetrace.c
 
 vtab.lo:	$(TOP)\src\vtab.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\vtab.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\vtab.c
 
 wal.lo:	$(TOP)\src\wal.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\wal.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\wal.c
 
 walker.lo:	$(TOP)\src\walker.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\walker.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\walker.c
 
 where.lo:	$(TOP)\src\where.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\where.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\where.c
 
 tclsqlite.lo:	$(TOP)\src\tclsqlite.c $(HDR)
-	$(LTCOMPILE) -DUSE_TCL_STUBS=1 -DBUILD_sqlite -I$(TCLINCDIR) -c $(TOP)\src\tclsqlite.c
+	$(LTCOMPILE) $(NO_WARN) -DUSE_TCL_STUBS=1 -DBUILD_sqlite -I$(TCLINCDIR) -c $(TOP)\src\tclsqlite.c
 
 tclsqlite-shell.lo:	$(TOP)\src\tclsqlite.c $(HDR)
-	$(LTCOMPILE) -DTCLSH=1 -DBUILD_sqlite -I$(TCLINCDIR) -c $(TOP)\src\tclsqlite.c
+	$(LTCOMPILE) $(NO_WARN) -DTCLSH=1 -DBUILD_sqlite -I$(TCLINCDIR) -c $(TOP)\src\tclsqlite.c
 
-tclsqlite3.exe:	tclsqlite-shell.lo libsqlite3.lib $(LIBRESOBJS)
-	$(LD) $(LDFLAGS) $(LTLINKOPTS) $(LTLIBPATHS) /OUT:$@ libsqlite3.lib tclsqlite-shell.lo $(LIBRESOBJS) $(LTLIBS) $(TLIBS)
+tclsqlite3.exe:	tclsqlite-shell.lo $(SQLITE3C) $(LIBRESOBJS)
+	$(LTLINK) $(SQLITE3C) /link $(LTLINKOPTS) $(LTLIBPATHS) /OUT:$@ tclsqlite-shell.lo $(LIBRESOBJS) $(LTLIBS) $(TLIBS)
 
 # Rules to build opcodes.c and opcodes.h
 #
@@ -1384,7 +1492,7 @@ opcodes.h:	parse.h $(TOP)\src\vdbe.c $(TOP)\mkopcodeh.awk
 parse.h:	parse.c
 
 parse.c:	$(TOP)\src\parse.y lemon.exe $(TOP)\addopcodes.awk
-	del /Q parse.y parse.h parse.h.temp
+	del /Q parse.y parse.h parse.h.temp 2>NUL
 	copy $(TOP)\src\parse.y .
 	.\lemon.exe $(REQ_FEATURE_FLAGS) $(OPT_FEATURE_FLAGS) $(OPTS) parse.y
 	move parse.h parse.h.temp
@@ -1405,67 +1513,67 @@ keywordhash.h:	$(TOP)\tool\mkkeywordhash.c mkkeywordhash.exe
 # Rules to build the extension objects.
 #
 icu.lo:	$(TOP)\ext\icu\icu.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\icu\icu.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\icu\icu.c
 
 fts2.lo:	$(TOP)\ext\fts2\fts2.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2.c
 
 fts2_hash.lo:	$(TOP)\ext\fts2\fts2_hash.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2_hash.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2_hash.c
 
 fts2_icu.lo:	$(TOP)\ext\fts2\fts2_icu.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2_icu.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2_icu.c
 
 fts2_porter.lo:	$(TOP)\ext\fts2\fts2_porter.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2_porter.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2_porter.c
 
 fts2_tokenizer.lo:	$(TOP)\ext\fts2\fts2_tokenizer.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2_tokenizer.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2_tokenizer.c
 
 fts2_tokenizer1.lo:	$(TOP)\ext\fts2\fts2_tokenizer1.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2_tokenizer1.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2_tokenizer1.c
 
 fts3.lo:	$(TOP)\ext\fts3\fts3.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3.c
 
 fts3_aux.lo:	$(TOP)\ext\fts3\fts3_aux.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_aux.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_aux.c
 
 fts3_expr.lo:	$(TOP)\ext\fts3\fts3_expr.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_expr.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_expr.c
 
 fts3_hash.lo:	$(TOP)\ext\fts3\fts3_hash.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_hash.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_hash.c
 
 fts3_icu.lo:	$(TOP)\ext\fts3\fts3_icu.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_icu.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_icu.c
 
 fts3_snippet.lo:	$(TOP)\ext\fts3\fts3_snippet.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_snippet.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_snippet.c
 
 fts3_porter.lo:	$(TOP)\ext\fts3\fts3_porter.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_porter.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_porter.c
 
 fts3_tokenizer.lo:	$(TOP)\ext\fts3\fts3_tokenizer.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_tokenizer.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_tokenizer.c
 
 fts3_tokenizer1.lo:	$(TOP)\ext\fts3\fts3_tokenizer1.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_tokenizer1.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_tokenizer1.c
 
 fts3_tokenize_vtab.lo:	$(TOP)\ext\fts3\fts3_tokenize_vtab.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_tokenize_vtab.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_tokenize_vtab.c
 
 fts3_unicode.lo:	$(TOP)\ext\fts3\fts3_unicode.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_unicode.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_unicode.c
 
 fts3_unicode2.lo:	$(TOP)\ext\fts3\fts3_unicode2.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_unicode2.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_unicode2.c
 
 fts3_write.lo:	$(TOP)\ext\fts3\fts3_write.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_write.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_write.c
 
 rtree.lo:	$(TOP)\ext\rtree\rtree.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\rtree\rtree.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\rtree\rtree.c
 
 sqlite3session.lo:	$(TOP)\ext\session\sqlite3sesion.c $(HDR) $(EXTHDR)
 	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\session\sqlite3session.c
@@ -1482,7 +1590,7 @@ TESTFIXTURE_FLAGS = -DTCLSH=1 -DSQLITE_TEST=1 -DSQLITE_CRASH_TEST=1
 TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_SERVER=1 -DSQLITE_PRIVATE=""
 TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_CORE $(NO_WARN)
 
-TESTFIXTURE_SRC0 = $(TESTEXT) $(TESTSRC2) libsqlite3.lib
+TESTFIXTURE_SRC0 = $(TESTEXT) $(TESTSRC2) $(SHELL_CORE_DEP)
 TESTFIXTURE_SRC1 = $(TESTEXT) $(TESTSRC3) $(SQLITE3C)
 !IF $(USE_AMALGAMATION)==0
 TESTFIXTURE_SRC = $(TESTSRC) $(TOP)\src\tclsqlite.c $(TESTFIXTURE_SRC0)
@@ -1522,29 +1630,29 @@ sqlite3_analyzer.c: $(SQLITE3C) $(TOP)\src\test_stat.c $(TOP)\src\tclsqlite.c $(
 	echo ; return zMainloop; } >> $@
 
 sqlite3_analyzer.exe:	sqlite3_analyzer.c $(LIBRESOBJS)
-	$(LTLINK) -DBUILD_sqlite -DTCLSH=2 -I$(TCLINCDIR) sqlite3_analyzer.c \
+	$(LTLINK) $(NO_WARN) -DBUILD_sqlite -DTCLSH=2 -I$(TCLINCDIR) sqlite3_analyzer.c \
 		/link $(LTLINKOPTS) $(LTLIBPATHS) $(LIBRESOBJS) $(LTLIBS) $(TLIBS)
 
 testloadext.lo:	$(TOP)\src\test_loadext.c
-	$(LTCOMPILE) -c $(TOP)\src\test_loadext.c
+	$(LTCOMPILE) $(NO_WARN) -c $(TOP)\src\test_loadext.c
 
 testloadext.dll: testloadext.lo
 	$(LD) $(LDFLAGS) $(LTLINKOPTS) $(LTLIBPATHS) /DLL /OUT:$@ testloadext.lo
 
 showdb.exe:	$(TOP)\tool\showdb.c $(SQLITE3C)
-	$(LTLINK) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
+	$(LTLINK) $(NO_WARN) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
 		$(TOP)\tool\showdb.c $(SQLITE3C)
 
 showstat4.exe:	$(TOP)\tool\showstat4.c $(SQLITE3C)
-	$(LTLINK) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
+	$(LTLINK) $(NO_WARN) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
 		$(TOP)\tool\showstat4.c $(SQLITE3C)
 
 showjournal.exe:	$(TOP)\tool\showjournal.c $(SQLITE3C)
-	$(LTLINK) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
+	$(LTLINK) $(NO_WARN) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
 		$(TOP)\tool\showjournal.c $(SQLITE3C)
 
 showwal.exe:	$(TOP)\tool\showwal.c $(SQLITE3C)
-	$(LTLINK) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
+	$(LTLINK) $(NO_WARN) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
 		$(TOP)\tool\showwal.c $(SQLITE3C)
 
 changeset.exe:	$(TOP)\ext\session\changeset.c $(SQLITE3C)
@@ -1552,51 +1660,51 @@ changeset.exe:	$(TOP)\ext\session\changeset.c $(SQLITE3C)
 		$(TOP)\ext\session\changeset.c $(SQLITE3C)
 
 fts3view.exe:	$(TOP)\ext\fts3\tool\fts3view.c $(SQLITE3C)
-	$(LTLINK) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
+	$(LTLINK) $(NO_WARN) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
 		$(TOP)\ext\fts3\tool\fts3view.c $(SQLITE3C)
 
 rollback-test.exe:	$(TOP)\tool\rollback-test.c $(SQLITE3C)
-	$(LTLINK) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
+	$(LTLINK) $(NO_WARN) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
 		$(TOP)\tool\rollback-test.c $(SQLITE3C)
 
 LogEst.exe:	$(TOP)\tool\logest.c sqlite3.h
-	$(LTLINK) -Fe$@ $(TOP)\tool\LogEst.c
+	$(LTLINK) $(NO_WARN) -Fe$@ $(TOP)\tool\LogEst.c
 
 wordcount.exe:	$(TOP)\test\wordcount.c $(SQLITE3C)
-	$(LTLINK) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
+	$(LTLINK) $(NO_WARN) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
 		$(TOP)\test\wordcount.c $(SQLITE3C)
 
 speedtest1.exe:	$(TOP)\test\speedtest1.c $(SQLITE3C)
-	$(LTLINK) -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
+	$(LTLINK) $(NO_WARN) -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
 		$(TOP)\test\speedtest1.c $(SQLITE3C)
 
 clean:
-	del /Q *.lo *.ilk *.lib *.obj *.pdb sqlite3.exe libsqlite3.lib
-	del /Q *.cod *.da *.bb *.bbg gmon.out
-	del /Q sqlite3.h opcodes.c opcodes.h
-	del /Q lemon.* lempar.c parse.*
-	del /Q mkkeywordhash.* keywordhash.h
-	del /Q notasharedlib.*
-	-rmdir /Q/S .deps
-	-rmdir /Q/S .libs
-	-rmdir /Q/S quota2a
-	-rmdir /Q/S quota2b
-	-rmdir /Q/S quota2c
-	-rmdir /Q/S tsrc
-	del /Q .target_source
-	del /Q tclsqlite3.exe tclsqlite3.exp
-	del /Q testloadext.dll testloadext.exp
-	del /Q testfixture.exe testfixture.exp test.db
-	del /Q LogEst.exe fts3view.exe rollback-test.exe showdb.exe changeset.exe
-	del /Q showjournal.exe showstat4.exe showwal.exe speedtest1.exe
-	del /Q wordcount.exe
-	del /Q sqlite3.dll sqlite3.lib sqlite3.exp sqlite3.def
-	del /Q sqlite3.c sqlite3-*.c
-	del /Q sqlite3rc.h
-	del /Q shell.c sqlite3ext.h
-	del /Q sqlite3_analyzer.exe sqlite3_analyzer.exp sqlite3_analyzer.c
-	del /Q sqlite-*-output.vsix
-	del /Q mptester.exe
+	del /Q *.exp *.lo *.ilk *.lib *.obj *.pdb 2>NUL
+	del /Q *.cod *.da *.bb *.bbg gmon.out 2>NUL
+	del /Q sqlite3.h opcodes.c opcodes.h 2>NUL
+	del /Q lemon.* lempar.c parse.* 2>NUL
+	del /Q mkkeywordhash.* keywordhash.h 2>NUL
+	del /Q notasharedlib.* 2>NUL
+	-rmdir /Q/S .deps 2>NUL
+	-rmdir /Q/S .libs 2>NUL
+	-rmdir /Q/S quota2a 2>NUL
+	-rmdir /Q/S quota2b 2>NUL
+	-rmdir /Q/S quota2c 2>NUL
+	-rmdir /Q/S tsrc 2>NUL
+	del /Q .target_source 2>NUL
+	del /Q tclsqlite3.exe 2>NUL
+	del /Q testloadext.dll 2>NUL
+	del /Q testfixture.exe test.db 2>NUL
+	del /Q LogEst.exe fts3view.exe rollback-test.exe showdb.exe 2>NUL
+	del /Q changeset.exe 2>NUL
+	del /Q showjournal.exe showstat4.exe showwal.exe speedtest1.exe 2>NUL
+	del /Q mptester.exe wordcount.exe 2>NUL
+	del /Q sqlite3.exe sqlite3.dll sqlite3.def 2>NUL
+	del /Q sqlite3.c sqlite3-*.c 2>NUL
+	del /Q sqlite3rc.h 2>NUL
+	del /Q shell.c sqlite3ext.h 2>NUL
+	del /Q sqlite3_analyzer.exe sqlite3_analyzer.c 2>NUL
+	del /Q sqlite-*-output.vsix 2>NUL
 
 # Dynamic link library section.
 #
@@ -1608,5 +1716,5 @@ sqlite3.def: libsqlite3.lib
 		| $(NAWK) "/ 1 _?sqlite3_/ { sub(/^.* _?/,\"\");print }" \
 		| sort >> sqlite3.def
 
-sqlite3.dll: $(LIBOBJ) $(LIBRESOBJS) sqlite3.def
-	$(LD) $(LDFLAGS) $(LTLINKOPTS) $(LTLIBPATHS) /DLL /DEF:sqlite3.def /OUT:$@ $(LIBOBJ) $(LIBRESOBJS) $(LTLIBS) $(TLIBS)
+sqlite3.dll: $(LIBOBJ) $(LIBRESOBJS) $(CORE_LINK_DEP)
+	$(LD) $(LDFLAGS) $(LTLINKOPTS) $(LTLIBPATHS) /DLL $(CORE_LINK_OPTS) /OUT:$@ $(LIBOBJ) $(LIBRESOBJS) $(LTLIBS) $(TLIBS)
diff --git a/ext/fts3/fts3.c b/ext/fts3/fts3.c
index a31d3f13fe..c92463204c 100644
--- a/ext/fts3/fts3.c
+++ b/ext/fts3/fts3.c
@@ -910,11 +910,16 @@ static char *fts3WriteExprList(Fts3Table *p, const char *zFunc, int *pRc){
 ** This function is used when parsing the "prefix=" FTS4 parameter.
 */
 static int fts3GobbleInt(const char **pp, int *pnOut){
+  const int MAX_NPREFIX = 10000000;
   const char *p;                  /* Iterator pointer */
   int nInt = 0;                   /* Output value */
 
   for(p=*pp; p[0]>='0' && p[0]<='9'; p++){
     nInt = nInt * 10 + (p[0] - '0');
+    if( nInt>MAX_NPREFIX ){
+      nInt = 0;
+      break;
+    }
   }
   if( p==*pp ) return SQLITE_ERROR;
   *pnOut = nInt;
@@ -957,7 +962,6 @@ static int fts3PrefixParameter(
 
   aIndex = sqlite3_malloc(sizeof(struct Fts3Index) * nIndex);
   *apIndex = aIndex;
-  *pnIndex = nIndex;
   if( !aIndex ){
     return SQLITE_NOMEM;
   }
@@ -967,13 +971,20 @@ static int fts3PrefixParameter(
     const char *p = zParam;
     int i;
     for(i=1; i<nIndex; i++){
-      int nPrefix;
+      int nPrefix = 0;
       if( fts3GobbleInt(&p, &nPrefix) ) return SQLITE_ERROR;
-      aIndex[i].nPrefix = nPrefix;
+      assert( nPrefix>=0 );
+      if( nPrefix==0 ){
+        nIndex--;
+        i--;
+      }else{
+        aIndex[i].nPrefix = nPrefix;
+      }
       p++;
     }
   }
 
+  *pnIndex = nIndex;
   return SQLITE_OK;
 }
 
diff --git a/ext/fts3/fts3_tokenizer.c b/ext/fts3/fts3_tokenizer.c
index 04f84460e8..2b985f5f33 100644
--- a/ext/fts3/fts3_tokenizer.c
+++ b/ext/fts3/fts3_tokenizer.c
@@ -69,7 +69,7 @@ static void scalarFunc(
   if( argc==2 ){
     void *pOld;
     int n = sqlite3_value_bytes(argv[1]);
-    if( n!=sizeof(pPtr) ){
+    if( zName==0 || n!=sizeof(pPtr) ){
       sqlite3_result_error(context, "argument type mismatch", -1);
       return;
     }
@@ -80,7 +80,9 @@ static void scalarFunc(
       return;
     }
   }else{
-    pPtr = sqlite3Fts3HashFind(pHash, zName, nName);
+    if( zName ){
+      pPtr = sqlite3Fts3HashFind(pHash, zName, nName);
+    }
     if( !pPtr ){
       char *zErr = sqlite3_mprintf("unknown tokenizer: %s", zName);
       sqlite3_result_error(context, zErr, -1);
@@ -161,6 +163,10 @@ int sqlite3Fts3InitTokenizer(
   zEnd = &zCopy[strlen(zCopy)];
 
   z = (char *)sqlite3Fts3NextToken(zCopy, &n);
+  if( z==0 ){
+    assert( n==0 );
+    z = zCopy;
+  }
   z[n] = '\0';
   sqlite3Fts3Dequote(z);
 
diff --git a/ext/fts3/fts3_write.c b/ext/fts3/fts3_write.c
index 09294bc45a..a16070766f 100644
--- a/ext/fts3/fts3_write.c
+++ b/ext/fts3/fts3_write.c
@@ -1625,7 +1625,10 @@ int sqlite3Fts3SegReaderNew(
 ** an array of pending terms by term. This occurs as part of flushing
 ** the contents of the pending-terms hash table to the database.
 */
-static int fts3CompareElemByTerm(const void *lhs, const void *rhs){
+static int SQLITE_CDECL fts3CompareElemByTerm(
+  const void *lhs,
+  const void *rhs
+){
   char *z1 = fts3HashKey(*(Fts3HashElem **)lhs);
   char *z2 = fts3HashKey(*(Fts3HashElem **)rhs);
   int n1 = fts3HashKeysize(*(Fts3HashElem **)lhs);
diff --git a/ext/fts3/tool/fts3view.c b/ext/fts3/tool/fts3view.c
index 3dc1ba80fe..6dada352b3 100644
--- a/ext/fts3/tool/fts3view.c
+++ b/ext/fts3/tool/fts3view.c
@@ -504,7 +504,7 @@ static void showSegdirMap(sqlite3 *db, const char *zTab){
                        sqlite3_column_int64(pStmt,5));
       printf("  root   %9s\n", rtag);
       if( iLEnd>iStart ){
-        sqlite3_int64 iLower, iPrev, iX;
+        sqlite3_int64 iLower, iPrev = 0, iX;
         if( iLEnd+1<=iEnd ){
           sqlite3_bind_int64(pStmt2, 1, iLEnd+1);
           sqlite3_bind_int64(pStmt2, 2, iEnd);
@@ -548,7 +548,7 @@ static void decodeSegment(
   const unsigned char *aData,   /* Content to print */
   int nData                     /* Number of bytes of content */
 ){
-  sqlite3_int64 iChild;
+  sqlite3_int64 iChild = 0;
   sqlite3_int64 iPrefix;
   sqlite3_int64 nTerm;
   sqlite3_int64 n;
diff --git a/manifest b/manifest
index 87f9fa311d..6798741f01 100644
--- a/manifest
+++ b/manifest
@@ -1,9 +1,9 @@
 C Merge\sall\srecent\strunk\senhancements\sinto\sthe\ssessions\sbranch.
-D 2015-03-17T18:54:10.608
+D 2015-03-24T19:02:13.346
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in 1bf4de5d0809e0ed046d6f2671ea46d1d6c69608
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
-F Makefile.msc 0de5ab64775feb698a51950874e56cf15fb8f67f
+F Makefile.msc 9547047d5f1b55326a195323ee41cd86281a5d9e
 F Makefile.vxworks e1b65dea203f054e71653415bd8f96dcaed47858
 F README.md d58e3bebc0a4145e0f2a87994015fdb575a8e866
 F VERSION 319eb1ced4b4d17a67730f2b7b85f15c1346cb60
@@ -78,7 +78,7 @@ F ext/fts3/README.content fdc666a70d5257a64fee209f97cf89e0e6e32b51
 F ext/fts3/README.syntax a19711dc5458c20734b8e485e75fb1981ec2427a
 F ext/fts3/README.tokenizers e0a8b81383ea60d0334d274fadf305ea14a8c314
 F ext/fts3/README.txt 8c18f41574404623b76917b9da66fcb0ab38328d
-F ext/fts3/fts3.c 56a78f7e65e9e59bd0e75a1e10ce406f62034ca8
+F ext/fts3/fts3.c 2a1cf23133d0c75ce296d17440c44115f8413ec7
 F ext/fts3/fts3.h 3a10a0af180d502cecc50df77b1b22df142817fe
 F ext/fts3/fts3Int.h 394858c12a17740f7a1f6bd372c4606d4425a8d1
 F ext/fts3/fts3_aux.c 5c211e17a64885faeb16b9ba7772f9d5445c2365
@@ -91,15 +91,15 @@ F ext/fts3/fts3_snippet.c 52c2dcf410b1f9af5a44d81a2cf8c68ed1cb5283
 F ext/fts3/fts3_term.c a521f75132f9a495bdca1bdd45949b3191c52763
 F ext/fts3/fts3_test.c 8a3a78c4458b2d7c631fcf4b152a5cd656fa7038
 F ext/fts3/fts3_tokenize_vtab.c becc661223db7898b213f9e8a23d75bac02408c9
-F ext/fts3/fts3_tokenizer.c bbdc731bc91338050675c6d1da9ab82147391e16
+F ext/fts3/fts3_tokenizer.c b7e586baeb8d0a061cf01a0f7081d88f3935eecf
 F ext/fts3/fts3_tokenizer.h 64c6ef6c5272c51ebe60fc607a896e84288fcbc3
 F ext/fts3/fts3_tokenizer1.c 5c98225a53705e5ee34824087478cf477bdb7004
 F ext/fts3/fts3_unicode.c a93f5edc0aff44ef8b06d7cb55b52026541ca145
 F ext/fts3/fts3_unicode2.c c3d01968d497bd7001e7dc774ba75b372738c057
-F ext/fts3/fts3_write.c 9b3a32cbecf40a1f41cb08c00df8c066c23c7a25
+F ext/fts3/fts3_write.c 7104ec015474ee61a8a570349b925f35c6b0a294
 F ext/fts3/fts3speed.tcl b54caf6a18d38174f1a6e84219950d85e98bb1e9
 F ext/fts3/mkfts3amal.tcl 252ecb7fe6467854f2aa237bf2c390b74e71f100
-F ext/fts3/tool/fts3view.c 3986531f2fc0ceca0c89c31ec7d0589b6adb19d6
+F ext/fts3/tool/fts3view.c 8e53d0190a7b3443764bbd32ad47be2bd852026d
 F ext/fts3/unicode/CaseFolding.txt 8c678ca52ecc95e16bc7afc2dbf6fc9ffa05db8c
 F ext/fts3/unicode/UnicodeData.txt cd07314edb62d49fde34debdaf92fa2aa69011e7
 F ext/fts3/unicode/mkunicode.tcl a2567f9d6ad6779879a2e394c120ad8718557e65
@@ -177,7 +177,7 @@ F mptest/config01.test 3c6adcbc50b991866855f1977ff172eb6d901271
 F mptest/config02.test 4415dfe36c48785f751e16e32c20b077c28ae504
 F mptest/crash01.test 61e61469e257df0850df4293d7d4d6c2af301421
 F mptest/crash02.subtest f4ef05adcd15d60e5d2bd654204f2c008b519df8
-F mptest/mptest.c 0c0c82c1d9aea0b1a60ef9456a04c35ab1106622
+F mptest/mptest.c 1e464f41f1bbc6578d6925043da56170f83aea96
 F mptest/multiwrite01.test dab5c5f8f9534971efce679152c5146da265222d
 F spec.template 86a4a43b99ebb3e75e6b9a735d5fd293a24e90ca
 F sqlite.pc.in 42b7bf0d02e08b9e77734a47798d1a55a9e0716b
@@ -189,17 +189,17 @@ F src/attach.c 880f9b8641a829c563e52dd13c452ce457ae4dd8
 F src/auth.c b56c78ebe40a2110fd361379f7e8162d23f92240
 F src/backup.c ff743689c4d6c5cb55ad42ed9d174b2b3e71f1e3
 F src/bitvec.c 19a4ba637bd85f8f63fc8c9bae5ade9fb05ec1cb
-F src/btmutex.c 49ca66250c7dfa844a4d4cb8272b87420d27d3a5
-F src/btree.c a31ac00e30fb7bb49e90e48ce29ef8a61591be96
-F src/btree.h 9cbbb92aab22ef8b50493c40aa3f8de87c43a2fb
+F src/btmutex.c 45a968cc85afed9b5e6cf55bf1f42f8d18107f79
+F src/btree.c 3e320cac836546c905bd90007074d887980aa70e
+F src/btree.h 969adc948e89e449220ff0ff724c94bb2a52e9f1
 F src/btreeInt.h 2bfefc01875d8da066504c233ec259fcb3b2ef72
-F src/build.c ba45ebd02904e84d98839a6ea74c3eb948596587
+F src/build.c 0419bba592c22f6d00e6d57a2ca7136720d02c1a
 F src/callback.c 7b44ce59674338ad48b0e84e7b72f935ea4f68b0
 F src/complete.c 198a0066ba60ab06fc00fba1998d870a4d575463
 F src/ctime.c 98f89724adc891a1a4c655bee04e33e716e05887
 F src/date.c e4d50b3283696836ec1036b695ead9a19e37a5ac
 F src/delete.c 5075d88557eb4e2a7fdb2b61a96142830d8589b8
-F src/expr.c 3ef111b88ae2941b84b6b6ea4be8d501ba1af0cb
+F src/expr.c d09dac67d53c78880ba31d56e8ba2be3a6490553
 F src/fault.c 160a0c015b6c2629d3899ed2daf63d75754a32bb
 F src/fkey.c e0444b61bed271a76840cbe6182df93a9baa3f12
 F src/func.c 1414c24c873c48796ad45942257a179a423ba42f
@@ -212,8 +212,8 @@ F src/journal.c b4124532212b6952f42eb2c12fa3c25701d8ba8d
 F src/legacy.c ba1863ea58c4c840335a84ec276fc2b25e22bc4e
 F src/lempar.c 7274c97d24bb46631e504332ccd3bd1b37841770
 F src/loadext.c 86bd4e2fccd520b748cba52492ab60c4a770f660
-F src/main.c 17902e3835e77d58a672dbd7b40a502afee733cc
-F src/malloc.c 740db54387204c9a2eb67c6d98e68b08e9ef4eab
+F src/main.c e404037a74cc37251e54c7b71a9a25b48b21e884
+F src/malloc.c e818a0db9ac0898f9dc74002f3a5baca32232d05
 F src/mem0.c 6a55ebe57c46ca1a7d98da93aaa07f99f1059645
 F src/mem1.c abe6ee469b6c5a35c7f22bfeb9c9bac664a1c987
 F src/mem2.c f1940d9e91948dd6a908fbb9ce3835c36b5d83c3
@@ -231,15 +231,15 @@ F src/os.c 8fd25588eeba74068d41102d26810e216999b6c8
 F src/os.h 3e57a24e2794a94d3cf2342c6d9a884888cd96bf
 F src/os_common.h 92815ed65f805560b66166e3583470ff94478f04
 F src/os_setup.h c9d4553b5aaa6f73391448b265b89bed0b890faa
-F src/os_unix.c cc903ecc6ebda90ef703d043ddaa7f33de0cab0f
+F src/os_unix.c a4dadbc2da41599e99093e91e276c38c17a73b89
 F src/os_win.c 8223e7db5b7c4a81d8b161098ac3959400434cdb
 F src/os_win.h eb7a47aa17b26b77eb97e4823f20a00b8bda12ca
 F src/pager.c 4120a49ecd37697e28f5ed807f470b9c0b88410c
 F src/pager.h c3476e7c89cdf1c6914e50a11f3714e30b4e0a77
-F src/parse.y 0f8e7d60f0ab3cb53d270adef69259ac307d83a8
+F src/parse.y 1299c66e7b1707322ccd8af43a359b8fb0d46d72
 F src/pcache.c 10539fb959849ad6efff80050541cab3d25089d4
 F src/pcache.h b44658c9c932d203510279439d891a2a83e12ba8
-F src/pcache1.c 1e77432b40b7d3288327d9cdf399dcdfd2b6d3bf
+F src/pcache1.c 69d137620a305f814398bd29a0c998038c0695e9
 F src/pragma.c ac4f3f856b4234e85f55b0f069698a4766011100
 F src/pragma.h 09c89bca58e9a44de2116cc8272b8d454657129f
 F src/prepare.c 173a5a499138451b2561614ecb87d78f9f4644b9
@@ -247,14 +247,14 @@ F src/printf.c 8da9a2687a396daa19860f4dc90975d319304744
 F src/random.c ba2679f80ec82c4190062d756f22d0c358180696
 F src/resolve.c f4d79e31ffa5820c2e3d1740baa5e9b190425f2b
 F src/rowset.c eccf6af6d620aaa4579bd3b72c1b6395d9e9fa1e
-F src/select.c 94e016b6733b1d39a2f4c8d431155b4c2897d907
-F src/shell.c b90258c9083d94f51434ab57ab12336550a1483f
-F src/sqlite.h.in dff62c6db32b6b627184edae85878d66b184bd62
+F src/select.c 72ffb62e2879956302140e9f6e6ae88aee36b0e5
+F src/shell.c 560f5ceec3a1855c1aa474a52b75dea112d548b4
+F src/sqlite.h.in 690648d5c676eb3ded09f635fc8d0aeb22235df0
 F src/sqlite3.rc 992c9f5fb8285ae285d6be28240a7e8d3a7f2bad
 F src/sqlite3ext.h 17d487c3c91b0b8c584a32fbeb393f6f795eea7d
-F src/sqliteInt.h 9c62b8dff75ed3a8fc3bb5883a91e66ece8666da
+F src/sqliteInt.h d2804bd5a9c270bc60fe096c9c416123425ebdde
 F src/sqliteLimit.h 216557999cb45f2e3578ed53ebefe228d779cb46
-F src/status.c 81712116e826b0089bb221b018929536b2b5406f
+F src/status.c f266ad8a2892d659b74f0f50cb6a88b6e7c12179
 F src/table.c e7a09215315a978057fb42c640f890160dbcc45e
 F src/tclsqlite.c 7ed2644b48685cba250eb71c7c298fedab6e221a
 F src/test1.c 90fbedce75330d48d99eadb7d5f4223e86969585
@@ -304,27 +304,27 @@ F src/test_vfs.c b7e6831e6fcf04c5090accff30640ec5c9630739
 F src/test_vfstrace.c bab9594adc976cbe696ff3970728830b4c5ed698
 F src/test_wsd.c 41cadfd9d97fe8e3e4e44f61a4a8ccd6f7ca8fe9
 F src/threads.c 6bbcc9fe50c917864d48287b4792d46d6e873481
-F src/tokenize.c 05e52378c46efbc1fd63cbbbf7f3c555f840f4bf
+F src/tokenize.c a8d270b06e5f709930f7b67cf70a847969cb5bf3
 F src/trigger.c 25571661fdeae8c7f975ff40ffec205520a3f92f
 F src/update.c d207deb7a031f698104bee879de0632b611e72dd
 F src/utf.c fc6b889ba0779b7722634cdeaa25f1930d93820c
 F src/util.c 98a7627ca48ad3265b6940915a1d08355eb3fc7e
 F src/vacuum.c 9460b9de7b2d4e34b0d374894aa6c8a0632be8ec
-F src/vdbe.c 20dc93eae5fe11a33a7edf6d863c634e4e2eb15e
+F src/vdbe.c 334c39a26214270555f4b5f9ba490aaf9a9e2601
 F src/vdbe.h b434bb75fbec973d18d49225a59833ae39ee2afc
-F src/vdbeInt.h 50fc184e25bfe1b39b8e508082cd3f0cd8a29b3d
+F src/vdbeInt.h 96e4303a96c6f983e36e1fe32657b2c547f5c8f1
 F src/vdbeapi.c d95f2bb43d01a91d93231cde181811b38182202e
-F src/vdbeaux.c bf85a5975ade7da58fb31473a713c2f63ac86697
+F src/vdbeaux.c 3f36b184dbb5ca87b30c7c616d7cef6eb9e74ed6
 F src/vdbeblob.c ab33f9b57cfce7dddb23853090186da614be4846
 F src/vdbemem.c 149e585645c3f3ef063f2b7251646388cfe3d47d
-F src/vdbesort.c 6d64c5448b64851b99931ede980addc3af70d5e2
+F src/vdbesort.c 919717d7599fa31d343ec28bffd0f9e91a4ff5f6
 F src/vdbetrace.c 7e4222955e07dd707a2f360c0eb73452be1cb010
-F src/vtab.c 699f2b8d509cfe379c33dde33827875d5b030e01
+F src/vtab.c 62d49237bd8f3be4863815a39387b0f9897fa5e1
 F src/vxworks.h c18586c8edc1bddbc15c004fa16aeb1e1342b4fb
 F src/wal.c 878c8e1a51cb2ec45c395d26b7d5cd9e1a098e4a
 F src/wal.h df01efe09c5cb8c8e391ff1715cca294f89668a4
 F src/walker.c c253b95b4ee44b21c406e2a1052636c31ea27804
-F src/where.c 42ce3fd5ec9fe050f623be358cfddee01c1f6286
+F src/where.c 85d832efa5ef57de542db7f430b72fecd3af8b38
 F src/whereInt.h cbe4aa57326998d89e7698ca65bb7c28541d483c
 F test/8_3_names.test ebbb5cd36741350040fd28b432ceadf495be25b2
 F test/aggerror.test a867e273ef9e3d7919f03ef4f0e8c0d2767944f2
@@ -415,7 +415,7 @@ F test/check.test 5831ddb6f2c687782eaf2e1a07b6e17f24c4f763
 F test/close.test 340bd24cc58b16c6bc01967402755027c37eb815
 F test/closure01.test b1703ba40639cfc9b295cf478d70739415eec6a4
 F test/coalesce.test cee0dccb9fbd2d494b77234bccf9dc6c6786eb91
-F test/collate1.test 73b91005f264b7c403e2d63a6708d150679ac99a
+F test/collate1.test 7fcfe78f9613dc4a7e247d6bd27749955f108741
 F test/collate2.test 9aaa410a00734e48bcb27f3872617d6f69b2a621
 F test/collate3.test 79558a286362cb9ed603c6fa543f1cda7f563f0f
 F test/collate4.test f04d5168685f2eef637ecfa2d4ddf8ec0d600177
@@ -581,7 +581,7 @@ F test/fts3al.test 07d64326e79bbdbab20ee87fc3328fbf01641c9f
 F test/fts3am.test 218aa6ba0dfc50c7c16b2022aac5c6be593d08d8
 F test/fts3an.test a49ccadc07a2f7d646ec1b81bc09da2d85a85b18
 F test/fts3ao.test 3e4e3d5e75c076520341d0bdf4eb17c00e8cbde2
-F test/fts3atoken.test fca30fd86db9241d571c637751e9a8a2f50f1451
+F test/fts3atoken.test e3a126365131a6db52efc20a9a6053cd44e5f289
 F test/fts3auto.test b981fea19b132b4e6878f50d7c1f369b28f68eb9
 F test/fts3aux1.test f8f287a4a73f381f8fa15b6a70f36245f903d221
 F test/fts3aux2.test 7ae2b2c13aefdf4169279a27a5f51780ce57f6ba
@@ -609,7 +609,7 @@ F test/fts3join.test 53e66a0c21eb568580674a43b21c059acb26f499
 F test/fts3malloc.test b0e4c133b8d61d4f6d112d8110f8320e9e453ef6
 F test/fts3matchinfo.test 58544fa4d254000fa4e7f494b0a832f7ba61d45e
 F test/fts3near.test 7e3354d46f155a822b59c0e957fd2a70c1d7e905
-F test/fts3prefix.test b36d4f00b128a51e7b386cc013a874246d9d7dc1
+F test/fts3prefix.test 9f68e3598a139c23ec47d09299420e0fc4c72a83
 F test/fts3prefix2.test e1f0a822ca661dced7f12ce392e14eaf65609dce
 F test/fts3query.test c838b18f2b859e15fd31c64be3d79ef1556803ca
 F test/fts3rnd.test 1320d8826a845e38a96e769562bf83d7a92a15d0
@@ -758,7 +758,7 @@ F test/minmax.test 42fbad0e81afaa6e0de41c960329f2b2c3526efd
 F test/minmax2.test b44bae787fc7b227597b01b0ca5575c7cb54d3bc
 F test/minmax3.test cc1e8b010136db0d01a6f2a29ba5a9f321034354
 F test/minmax4.test 936941484ebdceb8adec7c86b6cd9b6e5e897c1f
-F test/misc1.test 4864f2834b203cad7f688df8a5f725e4bab08029
+F test/misc1.test f3f59b3941c84a10860c06c07e86ad367a74ec92
 F test/misc2.test 00d7de54eda90e237fc9a38b9e5ccc769ebf6d4d
 F test/misc3.test cf3dda47d5dda3e53fc5804a100d3c82be736c9d
 F test/misc4.test 9c078510fbfff05a9869a0b6d8b86a623ad2c4f6
@@ -884,7 +884,7 @@ F test/sharedlock.test 5ede3c37439067c43b0198f580fd374ebf15d304
 F test/shell1.test ca88b14a8fc8b1f3543a24e519d019585ac9c903
 F test/shell2.test 12b8bf901b0e3a8ac58cf5c0c63a0a388d4d1862
 F test/shell3.test 5e8545ec72c4413a0e8d4c6be56496e3c257ca29
-F test/shell4.test 8a9c08976291e6c6c808b4d718f4a8b299f339f5
+F test/shell4.test ddf0a99044e2245a87fc17423e3aaa1445b3243b
 F test/shell5.test c04e9f9f948305706b88377c464c7f08ce7479f9
 F test/shortread1.test bb591ef20f0fd9ed26d0d12e80eee6d7ac8897a3
 F test/show_speedtest1_rtree.tcl 32e6c5f073d7426148a6936a0408f4b5b169aba5
@@ -1129,8 +1129,8 @@ F test/vacuum4.test d3f8ecff345f166911568f397d2432c16d2867d9
 F test/varint.test ab7b110089a08b9926ed7390e7e97bdefeb74102
 F test/veryquick.test 57ab846bacf7b90cf4e9a672721ea5c5b669b661
 F test/view.test f311691d696a5cc27e3c1b875cec1b0866b4ccd9
-F test/vtab1.test 1cef14310144718812351a61c5cfb4ba8494a171
-F test/vtab2.test 7bcffc050da5c68f4f312e49e443063e2d391c0d
+F test/vtab1.test c9dc2a73e93331d70b37ce4b246ef6dc18412fef
+F test/vtab2.test 3644649aa8d1daac57fd541f6a5f914cac59203e
 F test/vtab3.test b45f47d20f225ccc9c28dc915d92740c2dee311e
 F test/vtab4.test 942f8b8280b3ea8a41dae20e7822d065ca1cb275
 F test/vtab5.test 889f444970393c73f1e077e2bdc5d845e157a391
@@ -1160,7 +1160,7 @@ F test/wal9.test 378e76a9ad09cd9bee06c172ad3547b0129a6750
 F test/wal_common.tcl a98f17fba96206122eff624db0ab13ec377be4fe
 F test/walbak.test b9f68e39646375c2b877be906babcc15d38b4877
 F test/walbig.test f437473a16cfb314867c6b5d1dbcd519e73e3434
-F test/walblock.test f1290524714232c109fb0b14db28f14d81c3ddd0
+F test/walblock.test ffc761cd467a93ccd8cd998a23be2f21b95a83b1
 F test/walcksum.test 9afeb96240296c08c72fc524d199c912cfe34daa
 F test/walcrash.test 451d79e528add5c42764cea74aa2750754171b25
 F test/walcrash2.test a0edab4e5390f03b99a790de89aad15d6ec70b36
@@ -1200,7 +1200,7 @@ F test/wild001.test bca33f499866f04c24510d74baf1e578d4e44b1c
 F test/win32heap.test ea19770974795cff26e11575e12d422dbd16893c
 F test/win32lock.test 71642fa56e9b06e5cfffe6bad67cb8c1eb2c555a
 F test/win32longpath.test 169c75a3b2e43481f4a62122510210c67b08f26d
-F test/with1.test 268081a6b14817a262ced4d0ee34d4d2a1dd2068
+F test/with1.test 9df5cd8a62148b3d9ef8597aea563e3863018bcd
 F test/with2.test ee227a663586aa09771cafd4fa269c5217eaf775
 F test/withM.test e97f2a8c506ab3ea9eab94e6f6072f6cc924c991
 F test/without_rowid1.test 7862e605753c8d25329f665fa09072e842183151
@@ -1208,11 +1208,11 @@ F test/without_rowid2.test af260339f79d13cb220288b67cd287fbcf81ad99
 F test/without_rowid3.test 1081aabf60a1e1123b7f9a8f6ae19954351843b0
 F test/without_rowid4.test 4e08bcbaee0399f35d58b5581881e7a6243d458a
 F test/without_rowid5.test 61256715b686359df48ca1742db50cc7e3e7b862
-F test/without_rowid6.test deddb78ef539c355bddec00cdfaea6c56efd8b3f
+F test/without_rowid6.test db0dbf03c49030aa3c1ba5f618620334bd2baf5f
 F test/wordcount.c 9915e06cb33d8ca8109b8700791afe80d305afda
 F test/zeroblob.test caaecfb4f908f7bc086ed238668049f96774d688
 F test/zerodamage.test cf6748bad89553cc1632be51a6f54e487e4039ac
-F tool/build-all-msvc.bat a0534c971b86fe95f1983f445db5b896d3394818 x
+F tool/build-all-msvc.bat 72e05bc8deca39a547884485c086b915f50a91ed x
 F tool/build-shell.sh 950f47c6174f1eea171319438b93ba67ff5bf367
 F tool/checkSpacing.c 810e51703529a204fc4e1eb060e9ab663e3c06d2
 F tool/diffdb.c 7524b1b5df217c20cd0431f6789851a4e0cb191b
@@ -1241,7 +1241,7 @@ F tool/opcodeDoc.awk b3a2a3d5d3075b8bd90b7afe24283efdd586659c
 F tool/pagesig.c ff0ca355fd3c2398e933da5e22439bbff89b803b
 F tool/restore_jrnl.tcl 6957a34f8f1f0f8285e07536225ec3b292a9024a
 F tool/rollback-test.c 9fc98427d1e23e84429d7e6d07d9094fbdec65a5
-F tool/showdb.c bd073a78bce714a0e42d92ea474b3eb8cb53be5d
+F tool/showdb.c 63cdef19e7fbca0c164b096ef8aef3bb9e9dd222
 F tool/showjournal.c 053eb1cc774710c6890b7dd6293300cc297b16a5
 F tool/showstat4.c 9515faa8ec176599d4a8288293ba8ec61f7b728a
 F tool/showwal.c 85cb36d4fe3e93e2fbd63e786e0d1ce42d0c4fad
@@ -1264,7 +1264,7 @@ F tool/vdbe_profile.tcl 67746953071a9f8f2f668b73fe899074e2c6d8c1
 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
 F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32
 F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
-P 68c8937e83b770d5ec6b1855c1bde81057c11b5f 7214dab7443d35c105904dd69635c1f8b45b2fc8
-R 2d91509a074fbfae08a7fbe6a418b4b7
+P 1d1c57c3566d86cd44f146688b620131b3b57e52 436314b5728c9413f9ac2d837e1c19364f31be72
+R b5b5e91935316c7c5da3a524cb5abdb1
 U drh
-Z 602e4d87f819b64c7ba9f529ae0477ce
+Z a1e013db0b150b015d815c843c8a5cc9
diff --git a/manifest.uuid b/manifest.uuid
index 2f02014ac0..6a0f8581ba 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-1d1c57c3566d86cd44f146688b620131b3b57e52
\ No newline at end of file
+54aaa6f29ad1bf84148c2403eed77e8311f68d66
\ No newline at end of file
diff --git a/mptest/mptest.c b/mptest/mptest.c
index fdfe5f4a9d..40c14bc87a 100644
--- a/mptest/mptest.c
+++ b/mptest/mptest.c
@@ -1252,7 +1252,7 @@ static void unrecognizedArguments(
   exit(1);
 }
 
-int main(int argc, char **argv){
+int SQLITE_CDECL main(int argc, char **argv){
   const char *zClient;
   int iClient;
   int n, i;
diff --git a/src/btmutex.c b/src/btmutex.c
index f9fe5b3dde..c9c8572dfb 100644
--- a/src/btmutex.c
+++ b/src/btmutex.c
@@ -141,6 +141,7 @@ static void SQLITE_NOINLINE btreeLockCarefully(Btree *p){
 ** Exit the recursive mutex on a Btree.
 */
 void sqlite3BtreeLeave(Btree *p){
+  assert( sqlite3_mutex_held(p->db->mutex) );
   if( p->sharable ){
     assert( p->wantToLock>0 );
     p->wantToLock--;
diff --git a/src/btree.c b/src/btree.c
index 8957b74c19..ac0c877317 100644
--- a/src/btree.c
+++ b/src/btree.c
@@ -2017,8 +2017,8 @@ int sqlite3BtreeOpen(
     ** the right size.  This is to guard against size changes that result
     ** when compiling on a different architecture.
     */
-    assert( sizeof(i64)==8 || sizeof(i64)==4 );
-    assert( sizeof(u64)==8 || sizeof(u64)==4 );
+    assert( sizeof(i64)==8 );
+    assert( sizeof(u64)==8 );
     assert( sizeof(u32)==4 );
     assert( sizeof(u16)==2 );
     assert( sizeof(Pgno)==4 );
@@ -7480,7 +7480,8 @@ static int balance(BtCursor *pCur){
           ** pSpace buffer passed to the latter call to balance_nonroot().
           */
           u8 *pSpace = sqlite3PageMalloc(pCur->pBt->pageSize);
-          rc = balance_nonroot(pParent, iIdx, pSpace, iPage==1, pCur->hints);
+          rc = balance_nonroot(pParent, iIdx, pSpace, iPage==1,
+                               pCur->hints&BTREE_BULKLOAD);
           if( pFree ){
             /* If pFree is not NULL, it points to the pSpace buffer used 
             ** by a previous call to balance_nonroot(). Its contents are
@@ -9143,14 +9144,23 @@ int sqlite3BtreeSetVersion(Btree *pBtree, int iVersion){
 }
 
 /*
-** set the mask of hint flags for cursor pCsr. Currently the only valid
-** values are 0 and BTREE_BULKLOAD.
+** set the mask of hint flags for cursor pCsr.
 */
 void sqlite3BtreeCursorHints(BtCursor *pCsr, unsigned int mask){
-  assert( mask==BTREE_BULKLOAD || mask==0 );
+  assert( mask==BTREE_BULKLOAD || mask==BTREE_SEEK_EQ || mask==0 );
   pCsr->hints = mask;
 }
 
+#ifdef SQLITE_DEBUG
+/*
+** Return true if the cursor has a hint specified.  This routine is
+** only used from within assert() statements
+*/
+int sqlite3BtreeCursorHasHint(BtCursor *pCsr, unsigned int mask){
+  return (pCsr->hints & mask)!=0;
+}
+#endif
+
 /*
 ** Return true if the given Btree is read-only.
 */
diff --git a/src/btree.h b/src/btree.h
index 77d12f78d3..3edc2b3b57 100644
--- a/src/btree.h
+++ b/src/btree.h
@@ -152,8 +152,18 @@ int sqlite3BtreeNewDb(Btree *p);
 /*
 ** Values that may be OR'd together to form the second argument of an
 ** sqlite3BtreeCursorHints() call.
+**
+** The BTREE_BULKLOAD flag is set on index cursors when the index is going
+** to be filled with content that is already in sorted order.
+**
+** The BTREE_SEEK_EQ flag is set on cursors that will get OP_SeekGE or
+** OP_SeekLE opcodes for a range search, but where the range of entries
+** selected will all have the same key.  In other words, the cursor will
+** be used only for equality key searches.
+**
 */
-#define BTREE_BULKLOAD 0x00000001
+#define BTREE_BULKLOAD 0x00000001  /* Used to full index in sorted order */
+#define BTREE_SEEK_EQ  0x00000002  /* EQ seeks only - no range seeks */
 
 int sqlite3BtreeCursor(
   Btree*,                              /* BTree containing table to open */
@@ -199,6 +209,9 @@ void sqlite3BtreeIncrblobCursor(BtCursor *);
 void sqlite3BtreeClearCursor(BtCursor *);
 int sqlite3BtreeSetVersion(Btree *pBt, int iVersion);
 void sqlite3BtreeCursorHints(BtCursor *, unsigned int mask);
+#ifdef SQLITE_DEBUG
+int sqlite3BtreeCursorHasHint(BtCursor*, unsigned int mask);
+#endif
 int sqlite3BtreeIsReadonly(Btree *pBt);
 int sqlite3HeaderSizeBtree(void);
 
diff --git a/src/build.c b/src/build.c
index 54dd526b56..fcf96bd42c 100644
--- a/src/build.c
+++ b/src/build.c
@@ -3183,6 +3183,7 @@ Index *sqlite3CreateIndex(
             pIdx->onError = pIndex->onError;
           }
         }
+        pRet = pIdx;
         goto exit_create_index;
       }
     }
diff --git a/src/expr.c b/src/expr.c
index 5457a9c065..e6ac0f6796 100644
--- a/src/expr.c
+++ b/src/expr.c
@@ -69,10 +69,11 @@ char sqlite3ExprAffinity(Expr *pExpr){
 Expr *sqlite3ExprAddCollateToken(
   Parse *pParse,           /* Parsing context */
   Expr *pExpr,             /* Add the "COLLATE" clause to this expression */
-  const Token *pCollName   /* Name of collating sequence */
+  const Token *pCollName,  /* Name of collating sequence */
+  int dequote              /* True to dequote pCollName */
 ){
   if( pCollName->n>0 ){
-    Expr *pNew = sqlite3ExprAlloc(pParse->db, TK_COLLATE, pCollName, 1);
+    Expr *pNew = sqlite3ExprAlloc(pParse->db, TK_COLLATE, pCollName, dequote);
     if( pNew ){
       pNew->pLeft = pExpr;
       pNew->flags |= EP_Collate|EP_Skip;
@@ -86,7 +87,7 @@ Expr *sqlite3ExprAddCollateString(Parse *pParse, Expr *pExpr, const char *zC){
   assert( zC!=0 );
   s.z = zC;
   s.n = sqlite3Strlen30(s.z);
-  return sqlite3ExprAddCollateToken(pParse, pExpr, &s);
+  return sqlite3ExprAddCollateToken(pParse, pExpr, &s, 0);
 }
 
 /*
@@ -396,6 +397,7 @@ static void exprSetHeight(Expr *p){
 ** Expr.flags. 
 */
 void sqlite3ExprSetHeightAndFlags(Parse *pParse, Expr *p){
+  if( pParse->nErr ) return;
   exprSetHeight(p);
   sqlite3ExprCheckHeight(pParse, p->nHeight);
 }
diff --git a/src/main.c b/src/main.c
index c67113bc7d..70ef211631 100644
--- a/src/main.c
+++ b/src/main.c
@@ -128,6 +128,11 @@ int sqlite3_initialize(void){
   }
 #endif
 
+  /* If the following assert() fails on some obscure processor/compiler
+  ** combination, the work-around is to set the correct pointer
+  ** size at compile-time using -DSQLITE_PTRSIZE=n compile-time option */
+  assert( SQLITE_PTRSIZE==sizeof(char*) );
+
   /* If SQLite is already completely initialized, then this call
   ** to sqlite3_initialize() should be a no-op.  But the initialization
   ** must be complete.  So isInit must not be set until the very end
diff --git a/src/malloc.c b/src/malloc.c
index 4960f91e02..264d046ec8 100644
--- a/src/malloc.c
+++ b/src/malloc.c
@@ -75,6 +75,13 @@ static SQLITE_WSD struct Mem0Global {
 
 #define mem0 GLOBAL(struct Mem0Global, mem0)
 
+/*
+** Return the memory allocator mutex. sqlite3_status() needs it.
+*/
+sqlite3_mutex *sqlite3MallocMutex(void){
+  return mem0.mutex;
+}
+
 /*
 ** This routine runs when the memory allocator sees that the
 ** total memory allocation is about to exceed the soft heap
@@ -97,7 +104,7 @@ static int sqlite3MemoryAlarm(
   void *pArg,
   sqlite3_int64 iThreshold
 ){
-  int nUsed;
+  sqlite3_int64 nUsed;
   sqlite3_mutex_enter(mem0.mutex);
   mem0.alarmCallback = xCallback;
   mem0.alarmArg = pArg;
@@ -266,7 +273,7 @@ static int mallocWithAlarm(int n, void **pp){
   nFull = sqlite3GlobalConfig.m.xRoundup(n);
   sqlite3StatusSet(SQLITE_STATUS_MALLOC_SIZE, n);
   if( mem0.alarmCallback!=0 ){
-    int nUsed = sqlite3StatusValue(SQLITE_STATUS_MEMORY_USED);
+    sqlite3_int64 nUsed = sqlite3StatusValue(SQLITE_STATUS_MEMORY_USED);
     if( nUsed >= mem0.alarmThreshold - nFull ){
       mem0.nearlyFull = 1;
       sqlite3MallocAlarm(nFull);
@@ -283,8 +290,8 @@ static int mallocWithAlarm(int n, void **pp){
 #endif
   if( p ){
     nFull = sqlite3MallocSize(p);
-    sqlite3StatusAdd(SQLITE_STATUS_MEMORY_USED, nFull);
-    sqlite3StatusAdd(SQLITE_STATUS_MALLOC_COUNT, 1);
+    sqlite3StatusUp(SQLITE_STATUS_MEMORY_USED, nFull);
+    sqlite3StatusUp(SQLITE_STATUS_MALLOC_COUNT, 1);
   }
   *pp = p;
   return nFull;
@@ -361,14 +368,14 @@ void *sqlite3ScratchMalloc(int n){
     p = mem0.pScratchFree;
     mem0.pScratchFree = mem0.pScratchFree->pNext;
     mem0.nScratchFree--;
-    sqlite3StatusAdd(SQLITE_STATUS_SCRATCH_USED, 1);
+    sqlite3StatusUp(SQLITE_STATUS_SCRATCH_USED, 1);
     sqlite3_mutex_leave(mem0.mutex);
   }else{
     sqlite3_mutex_leave(mem0.mutex);
     p = sqlite3Malloc(n);
     if( sqlite3GlobalConfig.bMemstat && p ){
       sqlite3_mutex_enter(mem0.mutex);
-      sqlite3StatusAdd(SQLITE_STATUS_SCRATCH_OVERFLOW, sqlite3MallocSize(p));
+      sqlite3StatusUp(SQLITE_STATUS_SCRATCH_OVERFLOW, sqlite3MallocSize(p));
       sqlite3_mutex_leave(mem0.mutex);
     }
     sqlite3MemdebugSetType(p, MEMTYPE_SCRATCH);
@@ -409,19 +416,19 @@ void sqlite3ScratchFree(void *p){
       mem0.pScratchFree = pSlot;
       mem0.nScratchFree++;
       assert( mem0.nScratchFree <= (u32)sqlite3GlobalConfig.nScratch );
-      sqlite3StatusAdd(SQLITE_STATUS_SCRATCH_USED, -1);
+      sqlite3StatusDown(SQLITE_STATUS_SCRATCH_USED, 1);
       sqlite3_mutex_leave(mem0.mutex);
     }else{
       /* Release memory back to the heap */
       assert( sqlite3MemdebugHasType(p, MEMTYPE_SCRATCH) );
-      assert( sqlite3MemdebugNoType(p, ~MEMTYPE_SCRATCH) );
+      assert( sqlite3MemdebugNoType(p, (u8)~MEMTYPE_SCRATCH) );
       sqlite3MemdebugSetType(p, MEMTYPE_HEAP);
       if( sqlite3GlobalConfig.bMemstat ){
         int iSize = sqlite3MallocSize(p);
         sqlite3_mutex_enter(mem0.mutex);
-        sqlite3StatusAdd(SQLITE_STATUS_SCRATCH_OVERFLOW, -iSize);
-        sqlite3StatusAdd(SQLITE_STATUS_MEMORY_USED, -iSize);
-        sqlite3StatusAdd(SQLITE_STATUS_MALLOC_COUNT, -1);
+        sqlite3StatusDown(SQLITE_STATUS_SCRATCH_OVERFLOW, iSize);
+        sqlite3StatusDown(SQLITE_STATUS_MEMORY_USED, iSize);
+        sqlite3StatusDown(SQLITE_STATUS_MALLOC_COUNT, 1);
         sqlite3GlobalConfig.m.xFree(p);
         sqlite3_mutex_leave(mem0.mutex);
       }else{
@@ -452,7 +459,7 @@ int sqlite3MallocSize(void *p){
 }
 int sqlite3DbMallocSize(sqlite3 *db, void *p){
   if( db==0 ){
-    assert( sqlite3MemdebugNoType(p, ~MEMTYPE_HEAP) );
+    assert( sqlite3MemdebugNoType(p, (u8)~MEMTYPE_HEAP) );
     assert( sqlite3MemdebugHasType(p, MEMTYPE_HEAP) );
     return sqlite3MallocSize(p);
   }else{
@@ -461,13 +468,13 @@ int sqlite3DbMallocSize(sqlite3 *db, void *p){
       return db->lookaside.sz;
     }else{
       assert( sqlite3MemdebugHasType(p, (MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) );
-      assert( sqlite3MemdebugNoType(p, ~(MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) );
+      assert( sqlite3MemdebugNoType(p, (u8)~(MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) );
       return sqlite3GlobalConfig.m.xSize(p);
     }
   }
 }
 sqlite3_uint64 sqlite3_msize(void *p){
-  assert( sqlite3MemdebugNoType(p, ~MEMTYPE_HEAP) );
+  assert( sqlite3MemdebugNoType(p, (u8)~MEMTYPE_HEAP) );
   assert( sqlite3MemdebugHasType(p, MEMTYPE_HEAP) );
   return (sqlite3_uint64)sqlite3GlobalConfig.m.xSize(p);
 }
@@ -478,11 +485,11 @@ sqlite3_uint64 sqlite3_msize(void *p){
 void sqlite3_free(void *p){
   if( p==0 ) return;  /* IMP: R-49053-54554 */
   assert( sqlite3MemdebugHasType(p, MEMTYPE_HEAP) );
-  assert( sqlite3MemdebugNoType(p, ~MEMTYPE_HEAP) );
+  assert( sqlite3MemdebugNoType(p, (u8)~MEMTYPE_HEAP) );
   if( sqlite3GlobalConfig.bMemstat ){
     sqlite3_mutex_enter(mem0.mutex);
-    sqlite3StatusAdd(SQLITE_STATUS_MEMORY_USED, -sqlite3MallocSize(p));
-    sqlite3StatusAdd(SQLITE_STATUS_MALLOC_COUNT, -1);
+    sqlite3StatusDown(SQLITE_STATUS_MEMORY_USED, sqlite3MallocSize(p));
+    sqlite3StatusDown(SQLITE_STATUS_MALLOC_COUNT, 1);
     sqlite3GlobalConfig.m.xFree(p);
     sqlite3_mutex_leave(mem0.mutex);
   }else{
@@ -523,7 +530,7 @@ void sqlite3DbFree(sqlite3 *db, void *p){
     }
   }
   assert( sqlite3MemdebugHasType(p, (MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) );
-  assert( sqlite3MemdebugNoType(p, ~(MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) );
+  assert( sqlite3MemdebugNoType(p, (u8)~(MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) );
   assert( db!=0 || sqlite3MemdebugNoType(p, MEMTYPE_LOOKASIDE) );
   sqlite3MemdebugSetType(p, MEMTYPE_HEAP);
   sqlite3_free(p);
@@ -536,7 +543,7 @@ void *sqlite3Realloc(void *pOld, u64 nBytes){
   int nOld, nNew, nDiff;
   void *pNew;
   assert( sqlite3MemdebugHasType(pOld, MEMTYPE_HEAP) );
-  assert( sqlite3MemdebugNoType(pOld, ~MEMTYPE_HEAP) );
+  assert( sqlite3MemdebugNoType(pOld, (u8)~MEMTYPE_HEAP) );
   if( pOld==0 ){
     return sqlite3Malloc(nBytes); /* IMP: R-04300-56712 */
   }
@@ -570,7 +577,7 @@ void *sqlite3Realloc(void *pOld, u64 nBytes){
     }
     if( pNew ){
       nNew = sqlite3MallocSize(pNew);
-      sqlite3StatusAdd(SQLITE_STATUS_MEMORY_USED, nNew-nOld);
+      sqlite3StatusUp(SQLITE_STATUS_MEMORY_USED, nNew-nOld);
     }
     sqlite3_mutex_leave(mem0.mutex);
   }else{
@@ -703,7 +710,7 @@ void *sqlite3DbRealloc(sqlite3 *db, void *p, u64 n){
       }
     }else{
       assert( sqlite3MemdebugHasType(p, (MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) );
-      assert( sqlite3MemdebugNoType(p, ~(MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) );
+      assert( sqlite3MemdebugNoType(p, (u8)~(MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) );
       sqlite3MemdebugSetType(p, MEMTYPE_HEAP);
       pNew = sqlite3_realloc64(p, n);
       if( !pNew ){
diff --git a/src/os_unix.c b/src/os_unix.c
index 16cb935dec..a9c883a935 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -1536,7 +1536,7 @@ static int unixLock(sqlite3_file *id, int eFileLock){
   OSTRACE(("LOCK    %d %s was %s(%s,%d) pid=%d (unix)\n", pFile->h,
       azFileLock(eFileLock), azFileLock(pFile->eFileLock),
       azFileLock(pFile->pInode->eFileLock), pFile->pInode->nShared,
-      osGetpid()));
+      osGetpid(0)));
 
   /* If there is already a lock of this type or more restrictive on the
   ** unixFile, do nothing. Don't use the end_lock: exit path, as
@@ -1744,7 +1744,7 @@ static int posixUnlock(sqlite3_file *id, int eFileLock, int handleNFSUnlock){
   assert( pFile );
   OSTRACE(("UNLOCK  %d %d was %d(%d,%d) pid=%d (unix)\n", pFile->h, eFileLock,
       pFile->eFileLock, pFile->pInode->eFileLock, pFile->pInode->nShared,
-      osGetpid()));
+      osGetpid(0)));
 
   assert( eFileLock<=SHARED_LOCK );
   if( pFile->eFileLock<=eFileLock ){
@@ -2171,7 +2171,7 @@ static int dotlockUnlock(sqlite3_file *id, int eFileLock) {
 
   assert( pFile );
   OSTRACE(("UNLOCK  %d %d was %d pid=%d (dotlock)\n", pFile->h, eFileLock,
-           pFile->eFileLock, osGetpid()));
+           pFile->eFileLock, osGetpid(0)));
   assert( eFileLock<=SHARED_LOCK );
   
   /* no-op if possible */
@@ -2389,7 +2389,7 @@ static int flockUnlock(sqlite3_file *id, int eFileLock) {
   
   assert( pFile );
   OSTRACE(("UNLOCK  %d %d was %d pid=%d (flock)\n", pFile->h, eFileLock,
-           pFile->eFileLock, osGetpid()));
+           pFile->eFileLock, osGetpid(0)));
   assert( eFileLock<=SHARED_LOCK );
   
   /* no-op if possible */
@@ -2557,7 +2557,7 @@ static int semXUnlock(sqlite3_file *id, int eFileLock) {
   assert( pFile );
   assert( pSem );
   OSTRACE(("UNLOCK  %d %d was %d pid=%d (sem)\n", pFile->h, eFileLock,
-           pFile->eFileLock, osGetpid()));
+           pFile->eFileLock, osGetpid(0)));
   assert( eFileLock<=SHARED_LOCK );
   
   /* no-op if possible */
@@ -2771,7 +2771,7 @@ static int afpLock(sqlite3_file *id, int eFileLock){
   assert( pFile );
   OSTRACE(("LOCK    %d %s was %s(%s,%d) pid=%d (afp)\n", pFile->h,
            azFileLock(eFileLock), azFileLock(pFile->eFileLock),
-           azFileLock(pInode->eFileLock), pInode->nShared , osGetpid()));
+           azFileLock(pInode->eFileLock), pInode->nShared , osGetpid(0)));
 
   /* If there is already a lock of this type or more restrictive on the
   ** unixFile, do nothing. Don't use the afp_end_lock: exit path, as
@@ -2957,7 +2957,7 @@ static int afpUnlock(sqlite3_file *id, int eFileLock) {
   assert( pFile );
   OSTRACE(("UNLOCK  %d %d was %d(%d,%d) pid=%d (afp)\n", pFile->h, eFileLock,
            pFile->eFileLock, pFile->pInode->eFileLock, pFile->pInode->nShared,
-           osGetpid()));
+           osGetpid(0)));
 
   assert( eFileLock<=SHARED_LOCK );
   if( pFile->eFileLock<=eFileLock ){
@@ -3782,6 +3782,10 @@ static int unixGetTempname(int nBuf, char *zBuf);
 static int unixFileControl(sqlite3_file *id, int op, void *pArg){
   unixFile *pFile = (unixFile*)id;
   switch( op ){
+    case SQLITE_FCNTL_WAL_BLOCK: {
+      pFile->ctrlFlags |= UNIXFILE_BLOCK;
+      return SQLITE_OK;
+    }
     case SQLITE_FCNTL_LOCKSTATE: {
       *(int*)pArg = pFile->eFileLock;
       return SQLITE_OK;
@@ -4632,7 +4636,7 @@ static int unixShmLock(
   }
   sqlite3_mutex_leave(pShmNode->mutex);
   OSTRACE(("SHM-LOCK shmid-%d, pid-%d got %03x,%03x\n",
-           p->id, osGetpid(), p->sharedMask, p->exclMask));
+           p->id, osGetpid(0), p->sharedMask, p->exclMask));
   return rc;
 }
 
@@ -5727,8 +5731,8 @@ static int unixOpen(
   ** the same instant might all reset the PRNG.  But multiple resets
   ** are harmless.
   */
-  if( randomnessPid!=osGetpid() ){
-    randomnessPid = osGetpid();
+  if( randomnessPid!=osGetpid(0) ){
+    randomnessPid = osGetpid(0);
     sqlite3_randomness(0,0);
   }
 
@@ -6119,7 +6123,7 @@ static int unixRandomness(sqlite3_vfs *NotUsed, int nBuf, char *zBuf){
   ** tests repeatable.
   */
   memset(zBuf, 0, nBuf);
-  randomnessPid = osGetpid();  
+  randomnessPid = osGetpid(0);  
 #if !defined(SQLITE_TEST)
   {
     int fd, got;
@@ -6440,7 +6444,7 @@ static int proxyGetLockPath(const char *dbPath, char *lPath, size_t maxLen){
   {
     if( !confstr(_CS_DARWIN_USER_TEMP_DIR, lPath, maxLen) ){
       OSTRACE(("GETLOCKPATH  failed %s errno=%d pid=%d\n",
-               lPath, errno, osGetpid()));
+               lPath, errno, osGetpid(0)));
       return SQLITE_IOERR_LOCK;
     }
     len = strlcat(lPath, "sqliteplocks", maxLen);    
@@ -6462,7 +6466,7 @@ static int proxyGetLockPath(const char *dbPath, char *lPath, size_t maxLen){
   }
   lPath[i+len]='\0';
   strlcat(lPath, ":auto:", maxLen);
-  OSTRACE(("GETLOCKPATH  proxy lock path=%s pid=%d\n", lPath, osGetpid()));
+  OSTRACE(("GETLOCKPATH  proxy lock path=%s pid=%d\n", lPath, osGetpid(0)));
   return SQLITE_OK;
 }
 
@@ -6489,7 +6493,7 @@ static int proxyCreateLockPath(const char *lockPath){
           if( err!=EEXIST ) {
             OSTRACE(("CREATELOCKPATH  FAILED creating %s, "
                      "'%s' proxy lock path=%s pid=%d\n",
-                     buf, strerror(err), lockPath, osGetpid()));
+                     buf, strerror(err), lockPath, osGetpid(0)));
             return err;
           }
         }
@@ -6498,7 +6502,7 @@ static int proxyCreateLockPath(const char *lockPath){
     }
     buf[i] = lockPath[i];
   }
-  OSTRACE(("CREATELOCKPATH  proxy lock path=%s pid=%d\n", lockPath, osGetpid()));
+  OSTRACE(("CREATELOCKPATH  proxy lock path=%s pid=%d\n", lockPath, osGetpid(0)));
   return 0;
 }
 
@@ -6804,7 +6808,7 @@ static int proxyTakeConch(unixFile *pFile){
     
     OSTRACE(("TAKECONCH  %d for %s pid=%d\n", conchFile->h,
              (pCtx->lockProxyPath ? pCtx->lockProxyPath : ":auto:"),
-             osGetpid()));
+             osGetpid(0)));
 
     rc = proxyGetHostID(myHostID, &pError);
     if( (rc&0xff)==SQLITE_IOERR ){
@@ -7014,7 +7018,7 @@ static int proxyReleaseConch(unixFile *pFile){
   conchFile = pCtx->conchFile;
   OSTRACE(("RELEASECONCH  %d for %s pid=%d\n", conchFile->h,
            (pCtx->lockProxyPath ? pCtx->lockProxyPath : ":auto:"), 
-           osGetpid()));
+           osGetpid(0)));
   if( pCtx->conchHeld>0 ){
     rc = conchFile->pMethod->xUnlock((sqlite3_file*)conchFile, NO_LOCK);
   }
@@ -7156,7 +7160,7 @@ static int proxyTransformUnixFile(unixFile *pFile, const char *path) {
   }
   
   OSTRACE(("TRANSPROXY  %d for %s pid=%d\n", pFile->h,
-           (lockPath ? lockPath : ":auto:"), osGetpid()));
+           (lockPath ? lockPath : ":auto:"), osGetpid(0)));
 
   pCtx = sqlite3_malloc( sizeof(*pCtx) );
   if( pCtx==0 ){
@@ -7228,10 +7232,6 @@ static int proxyTransformUnixFile(unixFile *pFile, const char *path) {
 */
 static int proxyFileControl(sqlite3_file *id, int op, void *pArg){
   switch( op ){
-    case SQLITE_FCNTL_WAL_BLOCK: {
-      id->ctrlFlags |= UNIXFILE_BLOCK;
-      return SQLITE_OK;
-    }
     case SQLITE_FCNTL_GET_LOCKPROXYFILE: {
       unixFile *pFile = (unixFile*)id;
       if( pFile->pMethod == &proxyIoMethods ){
diff --git a/src/parse.y b/src/parse.y
index 78e79cd361..b8ef26810c 100644
--- a/src/parse.y
+++ b/src/parse.y
@@ -860,7 +860,7 @@ expr(A) ::= VARIABLE(X).     {
   spanSet(&A, &X, &X);
 }
 expr(A) ::= expr(E) COLLATE ids(C). {
-  A.pExpr = sqlite3ExprAddCollateToken(pParse, E.pExpr, &C);
+  A.pExpr = sqlite3ExprAddCollateToken(pParse, E.pExpr, &C, 1);
   A.zStart = E.zStart;
   A.zEnd = &C.z[C.n];
 }
@@ -1206,14 +1206,14 @@ uniqueflag(A) ::= .        {A = OE_None;}
 idxlist_opt(A) ::= .                         {A = 0;}
 idxlist_opt(A) ::= LP idxlist(X) RP.         {A = X;}
 idxlist(A) ::= idxlist(X) COMMA nm(Y) collate(C) sortorder(Z).  {
-  Expr *p = sqlite3ExprAddCollateToken(pParse, 0, &C);
+  Expr *p = sqlite3ExprAddCollateToken(pParse, 0, &C, 1);
   A = sqlite3ExprListAppend(pParse,X, p);
   sqlite3ExprListSetName(pParse,A,&Y,1);
   sqlite3ExprListCheckLength(pParse, A, "index");
   if( A ) A->a[A->nExpr-1].sortOrder = (u8)Z;
 }
 idxlist(A) ::= nm(Y) collate(C) sortorder(Z). {
-  Expr *p = sqlite3ExprAddCollateToken(pParse, 0, &C);
+  Expr *p = sqlite3ExprAddCollateToken(pParse, 0, &C, 1);
   A = sqlite3ExprListAppend(pParse,0, p);
   sqlite3ExprListSetName(pParse, A, &Y, 1);
   sqlite3ExprListCheckLength(pParse, A, "index");
diff --git a/src/pcache1.c b/src/pcache1.c
index f5f7893714..a8755a3141 100644
--- a/src/pcache1.c
+++ b/src/pcache1.c
@@ -195,7 +195,6 @@ void sqlite3PCacheBufferSetup(void *pBuf, int sz, int n){
 static void *pcache1Alloc(int nByte){
   void *p = 0;
   assert( sqlite3_mutex_notheld(pcache1.grp.mutex) );
-  sqlite3StatusSet(SQLITE_STATUS_PAGECACHE_SIZE, nByte);
   if( nByte<=pcache1.szSlot ){
     sqlite3_mutex_enter(pcache1.mutex);
     p = (PgHdr1 *)pcache1.pFree;
@@ -204,7 +203,8 @@ static void *pcache1Alloc(int nByte){
       pcache1.nFreeSlot--;
       pcache1.bUnderPressure = pcache1.nFreeSlot<pcache1.nReserve;
       assert( pcache1.nFreeSlot>=0 );
-      sqlite3StatusAdd(SQLITE_STATUS_PAGECACHE_USED, 1);
+      sqlite3StatusSet(SQLITE_STATUS_PAGECACHE_SIZE, nByte);
+      sqlite3StatusUp(SQLITE_STATUS_PAGECACHE_USED, 1);
     }
     sqlite3_mutex_leave(pcache1.mutex);
   }
@@ -217,7 +217,8 @@ static void *pcache1Alloc(int nByte){
     if( p ){
       int sz = sqlite3MallocSize(p);
       sqlite3_mutex_enter(pcache1.mutex);
-      sqlite3StatusAdd(SQLITE_STATUS_PAGECACHE_OVERFLOW, sz);
+      sqlite3StatusSet(SQLITE_STATUS_PAGECACHE_SIZE, nByte);
+      sqlite3StatusUp(SQLITE_STATUS_PAGECACHE_OVERFLOW, sz);
       sqlite3_mutex_leave(pcache1.mutex);
     }
 #endif
@@ -235,7 +236,7 @@ static int pcache1Free(void *p){
   if( p>=pcache1.pStart && p<pcache1.pEnd ){
     PgFreeslot *pSlot;
     sqlite3_mutex_enter(pcache1.mutex);
-    sqlite3StatusAdd(SQLITE_STATUS_PAGECACHE_USED, -1);
+    sqlite3StatusDown(SQLITE_STATUS_PAGECACHE_USED, 1);
     pSlot = (PgFreeslot*)p;
     pSlot->pNext = pcache1.pFree;
     pcache1.pFree = pSlot;
@@ -249,7 +250,7 @@ static int pcache1Free(void *p){
     nFreed = sqlite3MallocSize(p);
 #ifndef SQLITE_DISABLE_PAGECACHE_OVERFLOW_STATS
     sqlite3_mutex_enter(pcache1.mutex);
-    sqlite3StatusAdd(SQLITE_STATUS_PAGECACHE_OVERFLOW, -nFreed);
+    sqlite3StatusDown(SQLITE_STATUS_PAGECACHE_OVERFLOW, nFreed);
     sqlite3_mutex_leave(pcache1.mutex);
 #endif
     sqlite3_free(p);
@@ -986,6 +987,14 @@ void sqlite3PCacheSetDefault(void){
 */
 int sqlite3HeaderSizePcache1(void){ return ROUND8(sizeof(PgHdr1)); }
 
+/*
+** Return the global mutex used by this PCACHE implementation.  The
+** sqlite3_status() routine needs access to this mutex.
+*/
+sqlite3_mutex *sqlite3Pcache1Mutex(void){
+  return pcache1.mutex;
+}
+
 #ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
 /*
 ** This function is called to free superfluous dynamically allocated memory
diff --git a/src/select.c b/src/select.c
index a9cecaa390..8fd0f15918 100644
--- a/src/select.c
+++ b/src/select.c
@@ -4035,7 +4035,7 @@ static int withExpand(
     for(pLeft=pSel; pLeft->pPrior; pLeft=pLeft->pPrior);
     pEList = pLeft->pEList;
     if( pCte->pCols ){
-      if( pEList->nExpr!=pCte->pCols->nExpr ){
+      if( pEList && pEList->nExpr!=pCte->pCols->nExpr ){
         sqlite3ErrorMsg(pParse, "table %s has %d values for %d columns",
             pCte->zName, pEList->nExpr, pCte->pCols->nExpr
         );
diff --git a/src/shell.c b/src/shell.c
index 75468a0b20..57fcf29b0b 100644
--- a/src/shell.c
+++ b/src/shell.c
@@ -27,7 +27,7 @@
 /*
 ** No support for loadable extensions in VxWorks.
 */
-#if defined(_WRS_KERNEL) && !SQLITE_OMIT_LOAD_EXTENSION
+#if (defined(__RTP__) || defined(_WRS_KERNEL)) && !SQLITE_OMIT_LOAD_EXTENSION
 # define SQLITE_OMIT_LOAD_EXTENSION 1
 #endif
 
@@ -2232,7 +2232,7 @@ static void import_append_char(ImportCtx *p, int c){
 **      EOF on end-of-file.
 **   +  Report syntax errors on stderr
 */
-static char *csv_read_one_field(ImportCtx *p){
+static char *SQLITE_CDECL csv_read_one_field(ImportCtx *p){
   int c;
   int cSep = p->cColSep;
   int rSep = p->cRowSep;
@@ -2306,7 +2306,7 @@ static char *csv_read_one_field(ImportCtx *p){
 **      EOF on end-of-file.
 **   +  Report syntax errors on stderr
 */
-static char *ascii_read_one_field(ImportCtx *p){
+static char *SQLITE_CDECL ascii_read_one_field(ImportCtx *p){
   int c;
   int cSep = p->cColSep;
   int rSep = p->cRowSep;
@@ -3000,8 +3000,8 @@ static int do_meta_command(char *zLine, ShellState *p){
     int nSep;                   /* Number of bytes in p->colSeparator[] */
     char *zSql;                 /* An SQL statement */
     ImportCtx sCtx;             /* Reader context */
-    char *(*xRead)(ImportCtx*); /* Procedure to read one value */
-    int (*xCloser)(FILE*);      /* Procedure to close th3 connection */
+    char *(SQLITE_CDECL *xRead)(ImportCtx*); /* Func to read one value */
+    int (SQLITE_CDECL *xCloser)(FILE*);      /* Func to close file */
 
     if( nArg!=3 ){
       fprintf(stderr, "Usage: .import FILE TABLE\n");
@@ -3044,7 +3044,7 @@ static int do_meta_command(char *zLine, ShellState *p){
     sCtx.nLine = 1;
     if( sCtx.zFile[0]=='|' ){
 #ifdef SQLITE_OMIT_POPEN
-      fprintf(stderr, "Error: pipes are not supporte in this OS\n");
+      fprintf(stderr, "Error: pipes are not supported in this OS\n");
       return 1;
 #else
       sCtx.in = popen(sCtx.zFile+1, "r");
@@ -4122,12 +4122,12 @@ static int do_meta_command(char *zLine, ShellState *p){
   
   if( c=='t' && strncmp(azArg[0], "trace", n)==0 ){
     open_db(p, 0);
-    output_file_close(p->traceOut);
     if( nArg!=2 ){
       fprintf(stderr, "Usage: .trace FILE|off\n");
       rc = 1;
       goto meta_command_exit;
     }
+    output_file_close(p->traceOut);
     p->traceOut = output_file_open(azArg[1]);
 #if !defined(SQLITE_OMIT_TRACE) && !defined(SQLITE_OMIT_FLOATING_POINT)
     if( p->traceOut==0 ){
@@ -4635,7 +4635,7 @@ static char *cmdline_option_value(int argc, char **argv, int i){
   return argv[i];
 }
 
-int main(int argc, char **argv){
+int SQLITE_CDECL main(int argc, char **argv){
   char *zErrMsg = 0;
   ShellState data;
   const char *zInitFile = 0;
diff --git a/src/sqlite.h.in b/src/sqlite.h.in
index fabb321f14..a0d3d36676 100644
--- a/src/sqlite.h.in
+++ b/src/sqlite.h.in
@@ -49,6 +49,13 @@ extern "C" {
 # define SQLITE_EXTERN extern
 #endif
 
+/*
+** Add the ability to override 'cdecl'
+*/
+#ifndef SQLITE_CDECL
+# define SQLITE_CDECL
+#endif
+
 /*
 ** These no-op macros are used in front of interfaces to mark those
 ** interfaces as either deprecated or experimental.  New applications
@@ -1543,7 +1550,7 @@ struct sqlite3_mem_methods {
 **   <li> [sqlite3_memory_used()]
 **   <li> [sqlite3_memory_highwater()]
 **   <li> [sqlite3_soft_heap_limit64()]
-**   <li> [sqlite3_status()]
+**   <li> [sqlite3_status64()]
 **   </ul>)^
 ** ^Memory allocation statistics are enabled by default unless SQLite is
 ** compiled with [SQLITE_DEFAULT_MEMSTATUS]=0 in which case memory
@@ -3000,11 +3007,13 @@ sqlite3_int64 sqlite3_uri_int64(const char*, const char*, sqlite3_int64);
 /*
 ** CAPI3REF: Error Codes And Messages
 **
-** ^The sqlite3_errcode() interface returns the numeric [result code] or
-** [extended result code] for the most recent failed sqlite3_* API call
-** associated with a [database connection]. If a prior API call failed
-** but the most recent API call succeeded, the return value from
-** sqlite3_errcode() is undefined.  ^The sqlite3_extended_errcode()
+** ^If the most recent sqlite3_* API call associated with 
+** [database connection] D failed, then the sqlite3_errcode(D) interface
+** returns the numeric [result code] or [extended result code] for that
+** API call.
+** If the most recent API call was successful,
+** then the return value from sqlite3_errcode() is undefined.
+** ^The sqlite3_extended_errcode()
 ** interface is the same except that it always returns the 
 ** [extended result code] even when extended result codes are
 ** disabled.
@@ -5618,7 +5627,7 @@ int sqlite3_create_module_v2(
 */
 struct sqlite3_vtab {
   const sqlite3_module *pModule;  /* The module for this virtual table */
-  int nRef;                       /* NO LONGER USED */
+  int nRef;                       /* Number of open cursors */
   char *zErrMsg;                  /* Error message from sqlite3_mprintf() */
   /* Virtual table implementations will typically add additional fields */
 };
@@ -6296,7 +6305,7 @@ int sqlite3_test_control(int op, ...);
 /*
 ** CAPI3REF: SQLite Runtime Status
 **
-** ^This interface is used to retrieve runtime status information
+** ^These interfaces are used to retrieve runtime status information
 ** about the performance of SQLite, and optionally to reset various
 ** highwater marks.  ^The first argument is an integer code for
 ** the specific parameter to measure.  ^(Recognized integer codes
@@ -6310,19 +6319,22 @@ int sqlite3_test_control(int op, ...);
 ** ^(Other parameters record only the highwater mark and not the current
 ** value.  For these latter parameters nothing is written into *pCurrent.)^
 **
-** ^The sqlite3_status() routine returns SQLITE_OK on success and a
-** non-zero [error code] on failure.
+** ^The sqlite3_status() and sqlite3_status64() routines return
+** SQLITE_OK on success and a non-zero [error code] on failure.
 **
-** This routine is threadsafe but is not atomic.  This routine can be
-** called while other threads are running the same or different SQLite
-** interfaces.  However the values returned in *pCurrent and
-** *pHighwater reflect the status of SQLite at different points in time
-** and it is possible that another thread might change the parameter
-** in between the times when *pCurrent and *pHighwater are written.
+** If either the current value or the highwater mark is too large to
+** be represented by a 32-bit integer, then the values returned by
+** sqlite3_status() are undefined.
 **
 ** See also: [sqlite3_db_status()]
 */
 int sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetFlag);
+int sqlite3_status64(
+  int op,
+  sqlite3_int64 *pCurrent,
+  sqlite3_int64 *pHighwater,
+  int resetFlag
+);
 
 
 /*
diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index f2ab516e98..2a6d7d4e5e 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -594,6 +594,20 @@ typedef INT8_TYPE i8;              /* 1-byte signed integer */
 */
 typedef INT16_TYPE LogEst;
 
+/*
+** Set the SQLITE_PTRSIZE macro to the number of bytes in a pointer
+*/
+#ifndef SQLITE_PTRSIZE
+# if defined(__SIZEOF_POINTER__)
+#   define SQLITE_PTRSIZE __SIZEOF_POINTER__
+# elif defined(i386)     || defined(__i386__)   || defined(_M_IX86) ||    \
+       defined(_M_ARM)   || defined(__arm__)    || defined(__x86)
+#   define SQLITE_PTRSIZE 4
+# else
+#   define SQLITE_PTRSIZE 8
+# endif
+#endif
+
 /*
 ** Macros to determine whether the machine is big or little endian,
 ** and whether or not that determination is run-time or compile-time.
@@ -1099,6 +1113,7 @@ struct sqlite3 {
   int nVdbeRead;                /* Number of active VDBEs that read or write */
   int nVdbeWrite;               /* Number of active VDBEs that read and write */
   int nVdbeExec;                /* Number of nested calls to VdbeExec() */
+  int nVDestroy;                /* Number of active OP_VDestroy operations */
   int nExtension;               /* Number of loaded extensions */
   void **aExtension;            /* Array of shared library handles */
   void (*xTrace)(void*,const char*);        /* Trace function */
@@ -2704,7 +2719,8 @@ struct AuthContext {
 #define OPFLAG_LENGTHARG     0x40    /* OP_Column only used for length() */
 #define OPFLAG_TYPEOFARG     0x80    /* OP_Column only used for typeof() */
 #define OPFLAG_BULKCSR       0x01    /* OP_Open** used to open bulk cursor */
-#define OPFLAG_P2ISREG       0x02    /* P2 to OP_Open** is a register number */
+#define OPFLAG_SEEKEQ        0x02    /* OP_Open** cursor uses EQ seek only */
+#define OPFLAG_P2ISREG       0x04    /* P2 to OP_Open** is a register number */
 #define OPFLAG_PERMUTE       0x01    /* OP_Compare: use the permutation */
 
 /*
@@ -3108,10 +3124,15 @@ const sqlite3_mem_methods *sqlite3MemGetMemsys5(void);
   int sqlite3MutexEnd(void);
 #endif
 
-int sqlite3StatusValue(int);
-void sqlite3StatusAdd(int, int);
+sqlite3_int64 sqlite3StatusValue(int);
+void sqlite3StatusUp(int, int);
+void sqlite3StatusDown(int, int);
 void sqlite3StatusSet(int, int);
 
+/* Access to mutexes used by sqlite3_status() */
+sqlite3_mutex *sqlite3Pcache1Mutex(void);
+sqlite3_mutex *sqlite3MallocMutex(void);
+
 #ifndef SQLITE_OMIT_FLOATING_POINT
   int sqlite3IsNaN(double);
 #else
@@ -3491,7 +3512,7 @@ int sqlite3ReadSchema(Parse *pParse);
 CollSeq *sqlite3FindCollSeq(sqlite3*,u8 enc, const char*,int);
 CollSeq *sqlite3LocateCollSeq(Parse *pParse, const char*zName);
 CollSeq *sqlite3ExprCollSeq(Parse *pParse, Expr *pExpr);
-Expr *sqlite3ExprAddCollateToken(Parse *pParse, Expr*, const Token*);
+Expr *sqlite3ExprAddCollateToken(Parse *pParse, Expr*, const Token*, int);
 Expr *sqlite3ExprAddCollateString(Parse*,Expr*,const char*);
 Expr *sqlite3ExprSkipCollate(Expr*);
 int sqlite3CheckCollSeq(Parse *, CollSeq *);
diff --git a/src/status.c b/src/status.c
index 4c2eabb661..ac32753a22 100644
--- a/src/status.c
+++ b/src/status.c
@@ -21,10 +21,32 @@
 */
 typedef struct sqlite3StatType sqlite3StatType;
 static SQLITE_WSD struct sqlite3StatType {
-  int nowValue[10];         /* Current value */
-  int mxValue[10];          /* Maximum value */
+#if SQLITE_PTRSIZE>4
+  sqlite3_int64 nowValue[10];         /* Current value */
+  sqlite3_int64 mxValue[10];          /* Maximum value */
+#else
+  u32 nowValue[10];                   /* Current value */
+  u32 mxValue[10];                    /* Maximum value */
+#endif
 } sqlite3Stat = { {0,}, {0,} };
 
+/*
+** Elements of sqlite3Stat[] are protected by either the memory allocator
+** mutex, or by the pcache1 mutex.  The following array determines which.
+*/
+static const char statMutex[] = {
+  0,  /* SQLITE_STATUS_MEMORY_USED */
+  1,  /* SQLITE_STATUS_PAGECACHE_USED */
+  1,  /* SQLITE_STATUS_PAGECACHE_OVERFLOW */
+  0,  /* SQLITE_STATUS_SCRATCH_USED */
+  0,  /* SQLITE_STATUS_SCRATCH_OVERFLOW */
+  0,  /* SQLITE_STATUS_MALLOC_SIZE */
+  0,  /* SQLITE_STATUS_PARSER_STACK */
+  1,  /* SQLITE_STATUS_PAGECACHE_SIZE */
+  0,  /* SQLITE_STATUS_SCRATCH_SIZE */
+  0,  /* SQLITE_STATUS_MALLOC_COUNT */
+};
+
 
 /* The "wsdStat" macro will resolve to the status information
 ** state vector.  If writable static data is unsupported on the target,
@@ -41,33 +63,60 @@ static SQLITE_WSD struct sqlite3StatType {
 #endif
 
 /*
-** Return the current value of a status parameter.
+** Return the current value of a status parameter.  The caller must
+** be holding the appropriate mutex.
 */
-int sqlite3StatusValue(int op){
+sqlite3_int64 sqlite3StatusValue(int op){
   wsdStatInit;
   assert( op>=0 && op<ArraySize(wsdStat.nowValue) );
+  assert( op>=0 && op<ArraySize(statMutex) );
+  assert( sqlite3_mutex_held(statMutex[op] ? sqlite3Pcache1Mutex()
+                                           : sqlite3MallocMutex()) );
   return wsdStat.nowValue[op];
 }
 
 /*
-** Add N to the value of a status record.  It is assumed that the
-** caller holds appropriate locks.
+** Add N to the value of a status record.  The caller must hold the
+** appropriate mutex.  (Locking is checked by assert()).
+**
+** The StatusUp() routine can accept positive or negative values for N.
+** The value of N is added to the current status value and the high-water
+** mark is adjusted if necessary.
+**
+** The StatusDown() routine lowers the current value by N.  The highwater
+** mark is unchanged.  N must be non-negative for StatusDown().
 */
-void sqlite3StatusAdd(int op, int N){
+void sqlite3StatusUp(int op, int N){
   wsdStatInit;
   assert( op>=0 && op<ArraySize(wsdStat.nowValue) );
+  assert( op>=0 && op<ArraySize(statMutex) );
+  assert( sqlite3_mutex_held(statMutex[op] ? sqlite3Pcache1Mutex()
+                                           : sqlite3MallocMutex()) );
   wsdStat.nowValue[op] += N;
   if( wsdStat.nowValue[op]>wsdStat.mxValue[op] ){
     wsdStat.mxValue[op] = wsdStat.nowValue[op];
   }
 }
+void sqlite3StatusDown(int op, int N){
+  wsdStatInit;
+  assert( N>=0 );
+  assert( op>=0 && op<ArraySize(statMutex) );
+  assert( sqlite3_mutex_held(statMutex[op] ? sqlite3Pcache1Mutex()
+                                           : sqlite3MallocMutex()) );
+  assert( op>=0 && op<ArraySize(wsdStat.nowValue) );
+  wsdStat.nowValue[op] -= N;
+}
 
 /*
-** Set the value of a status to X.
+** Set the value of a status to X.  The highwater mark is adjusted if
+** necessary.  The caller must hold the appropriate mutex.
 */
 void sqlite3StatusSet(int op, int X){
   wsdStatInit;
   assert( op>=0 && op<ArraySize(wsdStat.nowValue) );
+  assert( op>=0 && op<ArraySize(statMutex) );
+  assert( sqlite3_mutex_held(statMutex[op] ? sqlite3Pcache1Mutex()
+                                           : sqlite3MallocMutex()) );
   wsdStat.nowValue[op] = X;
   if( wsdStat.nowValue[op]>wsdStat.mxValue[op] ){
     wsdStat.mxValue[op] = wsdStat.nowValue[op];
@@ -76,12 +125,14 @@ void sqlite3StatusSet(int op, int X){
 
 /*
 ** Query status information.
-**
-** This implementation assumes that reading or writing an aligned
-** 32-bit integer is an atomic operation.  If that assumption is not true,
-** then this routine is not threadsafe.
 */
-int sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetFlag){
+int sqlite3_status64(
+  int op,
+  sqlite3_int64 *pCurrent,
+  sqlite3_int64 *pHighwater,
+  int resetFlag
+){
+  sqlite3_mutex *pMutex;
   wsdStatInit;
   if( op<0 || op>=ArraySize(wsdStat.nowValue) ){
     return SQLITE_MISUSE_BKPT;
@@ -89,13 +140,30 @@ int sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetFlag){
 #ifdef SQLITE_ENABLE_API_ARMOR
   if( pCurrent==0 || pHighwater==0 ) return SQLITE_MISUSE_BKPT;
 #endif
+  pMutex = statMutex[op] ? sqlite3Pcache1Mutex() : sqlite3MallocMutex();
+  sqlite3_mutex_enter(pMutex);
   *pCurrent = wsdStat.nowValue[op];
   *pHighwater = wsdStat.mxValue[op];
   if( resetFlag ){
     wsdStat.mxValue[op] = wsdStat.nowValue[op];
   }
+  sqlite3_mutex_leave(pMutex);
+  (void)pMutex;  /* Prevent warning when SQLITE_THREADSAFE=0 */
   return SQLITE_OK;
 }
+int sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetFlag){
+  sqlite3_int64 iCur, iHwtr;
+  int rc;
+#ifdef SQLITE_ENABLE_API_ARMOR
+  if( pCurrent==0 || pHighwater==0 ) return SQLITE_MISUSE_BKPT;
+#endif
+  rc = sqlite3_status64(op, &iCur, &iHwtr, resetFlag);
+  if( rc==0 ){
+    *pCurrent = (int)iCur;
+    *pHighwater = (int)iHwtr;
+  }
+  return rc;
+}
 
 /*
 ** Query status information for a single database connection
diff --git a/src/tokenize.c b/src/tokenize.c
index 6fb5a35c3d..5068742f31 100644
--- a/src/tokenize.c
+++ b/src/tokenize.c
@@ -459,9 +459,11 @@ abort_parse:
     sqlite3Parser(pEngine, 0, pParse->sLastToken, pParse);
   }
 #ifdef YYTRACKMAXSTACKDEPTH
+  sqlite3_mutex_enter(sqlite3MallocMutex());
   sqlite3StatusSet(SQLITE_STATUS_PARSER_STACK,
       sqlite3ParserStackPeak(pEngine)
   );
+  sqlite3_mutex_leave(sqlite3MallocMutex());
 #endif /* YYDEBUG */
   sqlite3ParserFree(pEngine, sqlite3_free);
   db->lookaside.bEnabled = enableLookaside;
diff --git a/src/vdbe.c b/src/vdbe.c
index 27d23ce1de..5ac9d61b3d 100644
--- a/src/vdbe.c
+++ b/src/vdbe.c
@@ -3245,20 +3245,6 @@ case OP_SetCookie: {       /* in3 */
 ** See also OpenRead.
 */
 case OP_ReopenIdx: {
-  VdbeCursor *pCur;
-
-  assert( pOp->p5==0 );
-  assert( pOp->p4type==P4_KEYINFO );
-  pCur = p->apCsr[pOp->p1];
-  if( pCur && pCur->pgnoRoot==(u32)pOp->p2 ){
-    assert( pCur->iDb==pOp->p3 );      /* Guaranteed by the code generator */
-    break;
-  }
-  /* If the cursor is not currently open or is open on a different
-  ** index, then fall through into OP_OpenRead to force a reopen */
-}
-case OP_OpenRead:
-case OP_OpenWrite: {
   int nField;
   KeyInfo *pKeyInfo;
   int p2;
@@ -3268,8 +3254,20 @@ case OP_OpenWrite: {
   VdbeCursor *pCur;
   Db *pDb;
 
-  assert( (pOp->p5&(OPFLAG_P2ISREG|OPFLAG_BULKCSR))==pOp->p5 );
-  assert( pOp->opcode==OP_OpenWrite || pOp->p5==0 );
+  assert( pOp->p5==0 || pOp->p5==OPFLAG_SEEKEQ );
+  assert( pOp->p4type==P4_KEYINFO );
+  pCur = p->apCsr[pOp->p1];
+  if( pCur && pCur->pgnoRoot==(u32)pOp->p2 ){
+    assert( pCur->iDb==pOp->p3 );      /* Guaranteed by the code generator */
+    goto open_cursor_set_hints;
+  }
+  /* If the cursor is not currently open or is open on a different
+  ** index, then fall through into OP_OpenRead to force a reopen */
+case OP_OpenRead:
+case OP_OpenWrite:
+
+  assert( (pOp->p5&(OPFLAG_P2ISREG|OPFLAG_BULKCSR|OPFLAG_SEEKEQ))==pOp->p5 );
+  assert( pOp->opcode==OP_OpenWrite || pOp->p5==0 || pOp->p5==OPFLAG_SEEKEQ );
   assert( p->bIsReader );
   assert( pOp->opcode==OP_OpenRead || pOp->opcode==OP_ReopenIdx
           || p->readOnly==0 );
@@ -3332,14 +3330,17 @@ case OP_OpenWrite: {
   pCur->pgnoRoot = p2;
   rc = sqlite3BtreeCursor(pX, p2, wrFlag, pKeyInfo, pCur->pCursor);
   pCur->pKeyInfo = pKeyInfo;
-  assert( OPFLAG_BULKCSR==BTREE_BULKLOAD );
-  sqlite3BtreeCursorHints(pCur->pCursor, (pOp->p5 & OPFLAG_BULKCSR));
-
   /* Set the VdbeCursor.isTable variable. Previous versions of
   ** SQLite used to check if the root-page flags were sane at this point
   ** and report database corruption if they were not, but this check has
   ** since moved into the btree layer.  */  
   pCur->isTable = pOp->p4type!=P4_KEYINFO;
+
+open_cursor_set_hints:
+  assert( OPFLAG_BULKCSR==BTREE_BULKLOAD );
+  assert( OPFLAG_SEEKEQ==BTREE_SEEK_EQ );
+  sqlite3BtreeCursorHints(pCur->pCursor,
+                          (pOp->p5 & (OPFLAG_BULKCSR|OPFLAG_SEEKEQ)));
   break;
 }
 
@@ -3600,6 +3601,22 @@ case OP_SeekGT: {       /* jump, in3 */
 #ifdef SQLITE_DEBUG
   pC->seekOp = pOp->opcode;
 #endif
+
+  /* For a cursor with the BTREE_SEEK_EQ hint, only the OP_SeekGE and
+  ** OP_SeekLE opcodes are allowed, and these must be immediately followed
+  ** by an OP_IdxGT or OP_IdxLT opcode, respectively, with the same key.
+  */
+#ifdef SQLITE_DEBUG
+  if( sqlite3BtreeCursorHasHint(pC->pCursor, BTREE_SEEK_EQ) ){
+    assert( pOp->opcode==OP_SeekGE || pOp->opcode==OP_SeekLE );
+    assert( pOp[1].opcode==OP_IdxLT || pOp[1].opcode==OP_IdxGT );
+    assert( pOp[1].p1==pOp[0].p1 );
+    assert( pOp[1].p2==pOp[0].p2 );
+    assert( pOp[1].p3==pOp[0].p3 );
+    assert( pOp[1].p4.i==pOp[0].p4.i );
+  }
+#endif
+ 
   if( pC->isTable ){
     /* The input value in P3 might be of any type: integer, real, string,
     ** blob, or NULL.  But it needs to be an integer before we can do
@@ -4989,30 +5006,15 @@ case OP_IdxGE:  {       /* jump */
 */
 case OP_Destroy: {     /* out2-prerelease */
   int iMoved;
-  int iCnt;
-  Vdbe *pVdbe;
   int iDb;
 
   assert( p->readOnly==0 );
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  iCnt = 0;
-  for(pVdbe=db->pVdbe; pVdbe; pVdbe = pVdbe->pNext){
-    if( pVdbe->magic==VDBE_MAGIC_RUN && pVdbe->bIsReader 
-     && pVdbe->inVtabMethod<2 && pVdbe->pc>=0 
-    ){
-      iCnt++;
-    }
-  }
-#else
-  iCnt = db->nVdbeRead;
-#endif
   pOut->flags = MEM_Null;
-  if( iCnt>1 ){
+  if( db->nVdbeRead > db->nVDestroy+1 ){
     rc = SQLITE_LOCKED;
     p->errorAction = OE_Abort;
   }else{
     iDb = pOp->p3;
-    assert( iCnt==1 );
     assert( DbMaskTest(p->btreeMask, iDb) );
     iMoved = 0;  /* Not needed.  Only to silence a warning. */
     rc = sqlite3BtreeDropTable(db->aDb[iDb].pBt, pOp->p1, &iMoved);
@@ -6069,13 +6071,29 @@ case OP_VBegin: {
 #endif /* SQLITE_OMIT_VIRTUALTABLE */
 
 #ifndef SQLITE_OMIT_VIRTUALTABLE
-/* Opcode: VCreate P1 * * P4 *
+/* Opcode: VCreate P1 P2 * * *
 **
-** P4 is the name of a virtual table in database P1. Call the xCreate method
-** for that table.
+** P2 is a register that holds the name of a virtual table in database 
+** P1. Call the xCreate method for that table.
 */
 case OP_VCreate: {
-  rc = sqlite3VtabCallCreate(db, pOp->p1, pOp->p4.z, &p->zErrMsg);
+  Mem sMem;          /* For storing the record being decoded */
+  const char *zTab;  /* Name of the virtual table */
+
+  memset(&sMem, 0, sizeof(sMem));
+  sMem.db = db;
+  /* Because P2 is always a static string, it is impossible for the
+  ** sqlite3VdbeMemCopy() to fail */
+  assert( (aMem[pOp->p2].flags & MEM_Str)!=0 );
+  assert( (aMem[pOp->p2].flags & MEM_Static)!=0 );
+  rc = sqlite3VdbeMemCopy(&sMem, &aMem[pOp->p2]);
+  assert( rc==SQLITE_OK );
+  zTab = (const char*)sqlite3_value_text(&sMem);
+  assert( zTab || db->mallocFailed );
+  if( zTab ){
+    rc = sqlite3VtabCallCreate(db, pOp->p1, zTab, &p->zErrMsg);
+  }
+  sqlite3VdbeMemRelease(&sMem);
   break;
 }
 #endif /* SQLITE_OMIT_VIRTUALTABLE */
@@ -6087,9 +6105,9 @@ case OP_VCreate: {
 ** of that table.
 */
 case OP_VDestroy: {
-  p->inVtabMethod = 2;
+  db->nVDestroy++;
   rc = sqlite3VtabCallDestroy(db, pOp->p1, pOp->p4.z);
-  p->inVtabMethod = 0;
+  db->nVDestroy--;
   break;
 }
 #endif /* SQLITE_OMIT_VIRTUALTABLE */
@@ -6105,14 +6123,17 @@ case OP_VOpen: {
   VdbeCursor *pCur;
   sqlite3_vtab_cursor *pVtabCursor;
   sqlite3_vtab *pVtab;
-  sqlite3_module *pModule;
+  const sqlite3_module *pModule;
 
   assert( p->bIsReader );
   pCur = 0;
   pVtabCursor = 0;
   pVtab = pOp->p4.pVtab->pVtab;
-  pModule = (sqlite3_module *)pVtab->pModule;
-  assert(pVtab && pModule);
+  if( pVtab==0 || NEVER(pVtab->pModule==0) ){
+    rc = SQLITE_LOCKED;
+    break;
+  }
+  pModule = pVtab->pModule;
   rc = pModule->xOpen(pVtab, &pVtabCursor);
   sqlite3VtabImportErrmsg(p, pVtab);
   if( SQLITE_OK==rc ){
@@ -6123,6 +6144,7 @@ case OP_VOpen: {
     pCur = allocateCursor(p, pOp->p1, 0, -1, 0);
     if( pCur ){
       pCur->pVtabCursor = pVtabCursor;
+      pVtab->nRef++;
     }else{
       db->mallocFailed = 1;
       pModule->xClose(pVtabCursor);
@@ -6188,9 +6210,7 @@ case OP_VFilter: {   /* jump */
       apArg[i] = &pArgc[i+1];
     }
 
-    p->inVtabMethod = 1;
     rc = pModule->xFilter(pVtabCursor, iQuery, pOp->p4.z, nArg, apArg);
-    p->inVtabMethod = 0;
     sqlite3VtabImportErrmsg(p, pVtab);
     if( rc==SQLITE_OK ){
       res = pModule->xEof(pVtabCursor);
@@ -6280,9 +6300,7 @@ case OP_VNext: {   /* jump */
   ** data is available) and the error code returned when xColumn or
   ** some other method is next invoked on the save virtual table cursor.
   */
-  p->inVtabMethod = 1;
   rc = pModule->xNext(pCur->pVtabCursor);
-  p->inVtabMethod = 0;
   sqlite3VtabImportErrmsg(p, pVtab);
   if( rc==SQLITE_OK ){
     res = pModule->xEof(pCur->pVtabCursor);
@@ -6357,7 +6375,7 @@ case OP_VRename: {
 */
 case OP_VUpdate: {
   sqlite3_vtab *pVtab;
-  sqlite3_module *pModule;
+  const sqlite3_module *pModule;
   int nArg;
   int i;
   sqlite_int64 rowid;
@@ -6369,7 +6387,11 @@ case OP_VUpdate: {
   );
   assert( p->readOnly==0 );
   pVtab = pOp->p4.pVtab->pVtab;
-  pModule = (sqlite3_module *)pVtab->pModule;
+  if( pVtab==0 || NEVER(pVtab->pModule==0) ){
+    rc = SQLITE_LOCKED;
+    break;
+  }
+  pModule = pVtab->pModule;
   nArg = pOp->p2;
   assert( pOp->p4type==P4_VTAB );
   if( ALWAYS(pModule->xUpdate) ){
diff --git a/src/vdbeInt.h b/src/vdbeInt.h
index 8e1c9f457e..5769db4479 100644
--- a/src/vdbeInt.h
+++ b/src/vdbeInt.h
@@ -313,14 +313,6 @@ struct ScanStatus {
 **
 ** The "sqlite3_stmt" structure pointer that is returned by sqlite3_prepare()
 ** is really a pointer to an instance of this structure.
-**
-** The Vdbe.inVtabMethod variable is set to non-zero for the duration of
-** any virtual table method invocations made by the vdbe program. It is
-** set to 2 for xDestroy method calls and 1 for all other methods. This
-** variable is used for two purposes: to allow xDestroy methods to execute
-** "DROP TABLE" statements and to prevent some nasty side effects of
-** malloc failure when SQLite is invoked recursively by a virtual table 
-** method function.
 */
 struct Vdbe {
   sqlite3 *db;            /* The database connection that owns this statement */
@@ -351,7 +343,6 @@ struct Vdbe {
   u8 errorAction;         /* Recovery action to do in case of an error */
   u8 minWriteFileFormat;  /* Minimum file format for writable database files */
   bft explain:2;          /* True if EXPLAIN present on SQL command */
-  bft inVtabMethod:2;     /* See comments above */
   bft changeCntOn:1;      /* True to update the change-counter */
   bft expired:1;          /* True if the VM needs to be recompiled */
   bft runOnlyOnce:1;      /* Automatically expire on reset */
diff --git a/src/vdbeaux.c b/src/vdbeaux.c
index 685eb25ae1..758755112a 100644
--- a/src/vdbeaux.c
+++ b/src/vdbeaux.c
@@ -1119,7 +1119,7 @@ static char *displayP4(Op *pOp, char *zTemp, int nTemp){
 #ifndef SQLITE_OMIT_VIRTUALTABLE
     case P4_VTAB: {
       sqlite3_vtab *pVtab = pOp->p4.pVtab->pVtab;
-      sqlite3_snprintf(nTemp, zTemp, "vtab:%p:%p", pVtab, pVtab->pModule);
+      sqlite3_snprintf(nTemp, zTemp, "vtab:%p", pVtab);
       break;
     }
 #endif
@@ -1783,9 +1783,9 @@ void sqlite3VdbeFreeCursor(Vdbe *p, VdbeCursor *pCx){
   else if( pCx->pVtabCursor ){
     sqlite3_vtab_cursor *pVtabCursor = pCx->pVtabCursor;
     const sqlite3_module *pModule = pVtabCursor->pVtab->pModule;
-    p->inVtabMethod = 1;
+    assert( pVtabCursor->pVtab->nRef>0 );
+    pVtabCursor->pVtab->nRef--;
     pModule->xClose(pVtabCursor);
-    p->inVtabMethod = 0;
   }
 #endif
 }
diff --git a/src/vdbesort.c b/src/vdbesort.c
index 5a43a10542..bbdafa8230 100644
--- a/src/vdbesort.c
+++ b/src/vdbesort.c
@@ -1151,6 +1151,7 @@ static int vdbeSorterOpenTempFile(
   sqlite3_file **ppFd
 ){
   int rc;
+  if( sqlite3FaultSim(202) ) return SQLITE_IOERR_ACCESS;
   rc = sqlite3OsOpenMalloc(db->pVfs, 0, ppFd,
       SQLITE_OPEN_TEMP_JOURNAL |
       SQLITE_OPEN_READWRITE    | SQLITE_OPEN_CREATE |
diff --git a/src/vtab.c b/src/vtab.c
index 96a1289dea..23f49bafce 100644
--- a/src/vtab.c
+++ b/src/vtab.c
@@ -389,6 +389,7 @@ void sqlite3VtabFinishParse(Parse *pParse, Token *pEnd){
     char *zStmt;
     char *zWhere;
     int iDb;
+    int iReg;
     Vdbe *v;
 
     /* Compute the complete text of the CREATE VIRTUAL TABLE statement */
@@ -423,8 +424,10 @@ void sqlite3VtabFinishParse(Parse *pParse, Token *pEnd){
     sqlite3VdbeAddOp2(v, OP_Expire, 0, 0);
     zWhere = sqlite3MPrintf(db, "name='%q' AND type='table'", pTab->zName);
     sqlite3VdbeAddParseSchemaOp(v, iDb, zWhere);
-    sqlite3VdbeAddOp4(v, OP_VCreate, iDb, 0, 0, 
-                         pTab->zName, sqlite3Strlen30(pTab->zName) + 1);
+
+    iReg = ++pParse->nMem;
+    sqlite3VdbeAddOp4(v, OP_String8, 0, iReg, 0, pTab->zName, 0);
+    sqlite3VdbeAddOp2(v, OP_VCreate, iDb, iReg);
   }
 
   /* If we are rereading the sqlite_master table create the in-memory
@@ -777,11 +780,15 @@ int sqlite3VtabCallDestroy(sqlite3 *db, int iDb, const char *zTab){
 
   pTab = sqlite3FindTable(db, zTab, db->aDb[iDb].zName);
   if( ALWAYS(pTab!=0 && pTab->pVTable!=0) ){
-    VTable *p = vtabDisconnectAll(db, pTab);
-
-    assert( rc==SQLITE_OK );
+    VTable *p;
+    for(p=pTab->pVTable; p; p=p->pNext){
+      assert( p->pVtab );
+      if( p->pVtab->nRef>0 ){
+        return SQLITE_LOCKED;
+      }
+    }
+    p = vtabDisconnectAll(db, pTab);
     rc = p->pMod->pModule->xDestroy(p->pVtab);
-
     /* Remove the sqlite3_vtab* from the aVTrans[] array, if applicable */
     if( rc==SQLITE_OK ){
       assert( pTab->pVTable==p && p->pNext==0 );
diff --git a/src/where.c b/src/where.c
index 6a1f481d60..921e683d98 100644
--- a/src/where.c
+++ b/src/where.c
@@ -1364,7 +1364,7 @@ static void exprAnalyze(
     Expr *pNewExpr2;
     int idxNew1;
     int idxNew2;
-    Token sCollSeqName;  /* Name of collating sequence */
+    const char *zCollSeqName;     /* Name of collating sequence */
     const u16 wtFlags = TERM_LIKEOPT | TERM_VIRTUAL | TERM_DYNAMIC;
 
     pLeft = pExpr->x.pList->a[1].pExpr;
@@ -1400,11 +1400,10 @@ static void exprAnalyze(
       }
       *pC = c + 1;
     }
-    sCollSeqName.z = noCase ? "NOCASE" : "BINARY";
-    sCollSeqName.n = 6;
+    zCollSeqName = noCase ? "NOCASE" : "BINARY";
     pNewExpr1 = sqlite3ExprDup(db, pLeft, 0);
     pNewExpr1 = sqlite3PExpr(pParse, TK_GE,
-           sqlite3ExprAddCollateToken(pParse,pNewExpr1,&sCollSeqName),
+           sqlite3ExprAddCollateString(pParse,pNewExpr1,zCollSeqName),
            pStr1, 0);
     transferJoinMarkings(pNewExpr1, pExpr);
     idxNew1 = whereClauseInsert(pWC, pNewExpr1, wtFlags);
@@ -1412,7 +1411,7 @@ static void exprAnalyze(
     exprAnalyze(pSrc, pWC, idxNew1);
     pNewExpr2 = sqlite3ExprDup(db, pLeft, 0);
     pNewExpr2 = sqlite3PExpr(pParse, TK_LT,
-           sqlite3ExprAddCollateToken(pParse,pNewExpr2,&sCollSeqName),
+           sqlite3ExprAddCollateString(pParse,pNewExpr2,zCollSeqName),
            pStr2, 0);
     transferJoinMarkings(pNewExpr2, pExpr);
     idxNew2 = whereClauseInsert(pWC, pNewExpr2, wtFlags);
@@ -6802,6 +6801,12 @@ WhereInfo *sqlite3WhereBegin(
       if( op ){
         sqlite3VdbeAddOp3(v, op, iIndexCur, pIx->tnum, iDb);
         sqlite3VdbeSetP4KeyInfo(pParse, pIx);
+        if( (pLoop->wsFlags & WHERE_CONSTRAINT)!=0
+         && (pLoop->wsFlags & (WHERE_COLUMN_RANGE|WHERE_SKIPSCAN))==0
+         && (pWInfo->wctrlFlags&WHERE_ORDERBY_MIN)==0
+        ){
+          sqlite3VdbeChangeP5(v, OPFLAG_SEEKEQ); /* Hint to COMDB2 */
+        }
         VdbeComment((v, "%s", pIx->zName));
       }
     }
diff --git a/test/collate1.test b/test/collate1.test
index 20854157d3..0716ac743f 100644
--- a/test/collate1.test
+++ b/test/collate1.test
@@ -10,12 +10,12 @@
 #
 #***********************************************************************
 # This file implements regression tests for SQLite library.  The
-# focus of this script is page cache subsystem.
+# focus of this script is testing collation sequences.
 #
-# $Id: collate1.test,v 1.5 2007/02/01 23:02:46 drh Exp $
 
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
+set testprefix collate1
 
 #
 # Tests are roughly organised as follows:
@@ -333,4 +333,58 @@ do_test collate1-5.3 {
   }
 } {1 2}
 
+
+
+#-------------------------------------------------------------------------
+# Fix problems with handling collation sequences named '"""'.
+#
+do_execsql_test 6.1 {
+  SELECT """""""";
+} {\"\"\"}
+
+do_catchsql_test 6.2 {
+  CREATE TABLE x1(a);
+  SELECT a FROM x1 ORDER BY a COLLATE """""""";
+} {1 {no such collation sequence: """}}
+
+do_catchsql_test 6.3 {
+  SELECT a FROM x1 ORDER BY 1 COLLATE """""""";
+} {1 {no such collation sequence: """}}
+
+do_catchsql_test 6.4 {
+  SELECT 0 UNION SELECT 0 ORDER BY 1 COLLATE """""""";
+} {1 {no such collation sequence: """}}
+
+db collate {"""} [list string compare -nocase]
+
+do_execsql_test 6.5 {
+  PRAGMA foreign_keys = ON;
+  CREATE TABLE p1(a PRIMARY KEY COLLATE '"""');
+  CREATE TABLE c1(x, y REFERENCES p1);
+} {}
+
+do_execsql_test 6.6 { 
+  INSERT INTO p1 VALUES('abc'); 
+  INSERT INTO c1 VALUES(1, 'ABC'); 
+}
+
+ifcapable foreignkey {
+  do_catchsql_test 6.7 { 
+    DELETE FROM p1 WHERE rowid = 1 
+  } {1 {FOREIGN KEY constraint failed}}
+}
+
+do_execsql_test 6.8 { 
+  INSERT INTO p1 VALUES('abb');
+  INSERT INTO p1 VALUES('wxz');
+  INSERT INTO p1 VALUES('wxy');
+
+  INSERT INTO c1 VALUES(2, 'abb');
+  INSERT INTO c1 VALUES(3, 'wxz');
+  INSERT INTO c1 VALUES(4, 'WXY');
+  SELECT x, y FROM c1 ORDER BY y COLLATE """""""";
+} {2 abb 1 ABC 4 WXY 3 wxz}
+
 finish_test
+
+
diff --git a/test/fts3atoken.test b/test/fts3atoken.test
index b7722c7d04..88e3d4f72b 100644
--- a/test/fts3atoken.test
+++ b/test/fts3atoken.test
@@ -186,10 +186,32 @@ ifcapable icu {
   } {}
 }
 
-
 do_test fts3token-internal {
   execsql { SELECT fts3_tokenizer_internal_test() }
 } {ok}
 
+#-------------------------------------------------------------------------
+# Test empty tokenizer names.
+#
+do_catchsql_test 6.1.1 {
+  CREATE VIRTUAL TABLE t3 USING fts4(tokenize="");
+} {1 {unknown tokenizer: }}
+do_catchsql_test 6.1.2 {
+  CREATE VIRTUAL TABLE t3 USING fts4(tokenize=);
+} {1 {unknown tokenizer: }}
+do_catchsql_test 6.1.3 {
+  CREATE VIRTUAL TABLE t3 USING fts4(tokenize="   ");
+} {1 {unknown tokenizer:    }}
+
+do_catchsql_test 6.2.1 {
+  SELECT fts3_tokenizer(NULL);
+} {1 {unknown tokenizer: }}
+do_catchsql_test 6.2.2 {
+  SELECT fts3_tokenizer(NULL, X'1234567812345678');
+} {1 {argument type mismatch}}
+do_catchsql_test 6.2.3 {
+  SELECT fts3_tokenizer(NULL, X'12345678');
+} {1 {argument type mismatch}}
+
 
 finish_test
diff --git a/test/fts3prefix.test b/test/fts3prefix.test
index e7c197da9d..8ffabe8d65 100644
--- a/test/fts3prefix.test
+++ b/test/fts3prefix.test
@@ -209,5 +209,69 @@ do_catchsql_test 5.1 {
 do_catchsql_test 5.2 {
   CREATE VIRTUAL TABLE t4 USING fts4(prefix="");
 } {0 {}}
+do_catchsql_test 5.3 {
+  CREATE VIRTUAL TABLE t5 USING fts4(prefix="-1");
+} {1 {error parsing prefix parameter: -1}}
+
+#-------------------------------------------------------------------------
+# Prefix indexes of size 0 are ignored. Demonstrate this by showing that
+# adding prefix=0 does not change the contents of the %_segdir table.
+#
+reset_db
+do_execsql_test 6.1.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(prefix=0);
+  CREATE VIRTUAL TABLE t2 USING fts4;
+  INSERT INTO t1 VALUES('Twas Mulga Bill, from Eaglehawk, ');
+  INSERT INTO t2 VALUES('Twas Mulga Bill, from Eaglehawk, ');
+} {}
+do_execsql_test 6.1.2 {
+  SELECT md5sum(quote(root)) FROM t1_segdir;
+} [db eval {SELECT md5sum(quote(root)) FROM t2_segdir}]
+
+reset_db
+do_execsql_test 6.2.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(prefix="1,0,2");
+  CREATE VIRTUAL TABLE t2 USING fts4(prefix="1,2");
+  INSERT INTO t1 VALUES('that caught the cycling craze;');
+  INSERT INTO t2 VALUES('that caught the cycling craze;');
+} {}
+do_execsql_test 6.2.2 {
+  SELECT md5sum(quote(root)) FROM t1_segdir;
+} [db eval {SELECT md5sum(quote(root)) FROM t2_segdir}]
+
+reset_db
+do_execsql_test 6.3.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(prefix="1,3,2");
+  CREATE VIRTUAL TABLE t2 USING fts4(prefix="1,2");
+  INSERT INTO t1 VALUES('He turned away the good old horse');
+  INSERT INTO t2 VALUES('He turned away the good old horse');
+} {}
+do_test 6.3.2 {
+  set one [db eval {SELECT md5sum(quote(root)) FROM t1_segdir}]
+  set two [db eval {SELECT md5sum(quote(root)) FROM t2_segdir}]
+  expr {$one == $two}
+} 0
+
+reset_db
+do_execsql_test 6.4.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(prefix="1,600,2");
+  CREATE VIRTUAL TABLE t2 USING fts4(prefix="1,2");
+  INSERT INTO t1 VALUES('that served him many days;');
+  INSERT INTO t2 VALUES('that served him many days;');
+} {}
+do_execsql_test 6.4.2 {
+  SELECT md5sum(quote(root)) FROM t1_segdir;
+} [db eval {SELECT md5sum(quote(root)) FROM t2_segdir}]
+
+reset_db
+do_execsql_test 6.5.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(prefix="2147483647,2147483648,2147483649");
+  CREATE VIRTUAL TABLE t2 USING fts4(prefix=);
+  INSERT INTO t1 VALUES('He dressed himself in cycling clothes');
+  INSERT INTO t2 VALUES('He dressed himself in cycling clothes');
+} {}
+do_execsql_test 6.5.2 {
+  SELECT md5sum(quote(root)) FROM t1_segdir;
+} [db eval {SELECT md5sum(quote(root)) FROM t2_segdir}]
 
 finish_test
diff --git a/test/misc1.test b/test/misc1.test
index d18223e67b..0f4881fb61 100644
--- a/test/misc1.test
+++ b/test/misc1.test
@@ -13,7 +13,6 @@
 # This file implements tests for miscellanous features that were
 # left out of other test files.
 #
-# $Id: misc1.test,v 1.42 2007/11/05 14:58:23 drh Exp $
 
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
@@ -631,4 +630,13 @@ do_execsql_test misc1-20.1 {
   SELECT rowid, quote(x) FROM t0;
 } {1 ''}
 
+# 2015-03-22: NULL pointer dereference after a syntax error
+#
+do_catchsql_test misc1-21.1 {
+  select''like''like''like#0;
+} {1 {near "#0": syntax error}}
+do_catchsql_test misc1-21.2 {
+  VALUES(0,0x0MATCH#0;
+} {1 {near ";": syntax error}}
+
 finish_test
diff --git a/test/shell4.test b/test/shell4.test
index c29faf00cf..fcb0b2b715 100644
--- a/test/shell4.test
+++ b/test/shell4.test
@@ -12,12 +12,12 @@
 # The focus of this file is testing the CLI shell tool.
 # These tests are specific to the .stats command.
 #
-# $Id: shell4.test,v 1.7 2009/07/17 16:54:48 shaneh Exp $
-#
+# 2015-03-19:  Added tests for .trace
 
 # Test plan:
 #
 #   shell4-1.*: Basic tests specific to the "stats" command.
+#   shell4-2.*: Basic tests for ".trace"
 #
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
@@ -113,4 +113,24 @@ SELECT 1;
        [regexp {Autoindex Inserts} $res]
 } {1 1 1}
 
+do_test shell4-2.1 {
+  catchcmd ":memory:" "CREATE TABLE t1(x);\n.trace"
+} {1 {Usage: .trace FILE|off}}
+do_test shell4-2.2 {
+  catchcmd ":memory:" "CREATE TABLE t1(x);\n.trace off\n.trace off\n"
+} {0 {}}
+do_test shell4-2.3 {
+  catchcmd ":memory:" ".trace stdout\n.trace\n.trace off\n.dump\n"
+} {/^1 {PRAGMA.*Usage:.*}$/}
+ifcapable trace {
+do_test shell4-2.4 {
+  catchcmd ":memory:" ".trace stdout\nCREATE TABLE t1(x);SELECT * FROM t1;"
+} {0 {CREATE TABLE t1(x);
+SELECT * FROM t1;}}
+do_test shell4-2.5 {
+  catchcmd ":memory:" "CREATE TABLE t1(x);\n.trace stdout\nSELECT * FROM t1;"
+} {0 {SELECT * FROM t1;}}
+}
+
+
 finish_test
diff --git a/test/vtab1.test b/test/vtab1.test
index 2929b1e54d..dfc989a643 100644
--- a/test/vtab1.test
+++ b/test/vtab1.test
@@ -1437,4 +1437,58 @@ ifcapable fts3 {
   } {SQLITE_OK}
 }
 
+
+#-------------------------------------------------------------------------
+# The following tests verify that a DROP TABLE command on a virtual
+# table does not cause other operations to crash.
+#
+#   23.1: Dropping a vtab while a SELECT is running on it.
+#
+#   23.2: Dropping a vtab while a SELECT that will, but has not yet,
+#         open a cursor on the vtab, is running. In this case the
+#         DROP TABLE succeeds and the SELECT hits an error.
+#   
+#   23.3: Dropping a vtab from within a user-defined-function callback
+#         in the middle of an "INSERT INTO vtab SELECT ..." statement.
+#
+reset_db
+load_static_extension db wholenumber
+load_static_extension db eval
+register_echo_module db
+
+do_test 23.1 {
+  execsql { CREATE VIRTUAL TABLE t1 USING wholenumber }
+  set res ""
+  db eval { SELECT value FROM t1 WHERE value<10 } {
+    if {$value == 5} {
+      set res [catchsql { DROP TABLE t1 }]
+    }
+  }
+  set res
+} {1 {database table is locked}}
+
+do_test 23.2 {
+  execsql { 
+    CREATE TABLE t2(value);
+    INSERT INTO t2 VALUES(1), (2), (3);
+  }
+
+  set res2 [list [catch {
+    db eval {
+      SELECT value FROM t2 UNION ALL 
+      SELECT value FROM t1 WHERE value<10
+    } {
+      if {$value == 2} { set res1 [catchsql { DROP TABLE t1 }] }
+    }
+  } msg] $msg]
+  list $res1 $res2
+} {{0 {}} {1 {database table is locked}}}
+
+do_test 23.3.1 {
+  execsql { CREATE VIRTUAL TABLE t1e USING echo(t2) }
+  execsql { INSERT INTO t1e SELECT 4 }
+  catchsql { INSERT INTO t1e SELECT eval('DROP TABLE t1e') }
+} {1 {database table is locked}}
+do_execsql_test 23.3.2 { SELECT * FROM t1e } {1 2 3 4}
+
 finish_test
diff --git a/test/vtab2.test b/test/vtab2.test
index 05a4834a1b..3884ec57df 100644
--- a/test/vtab2.test
+++ b/test/vtab2.test
@@ -10,10 +10,10 @@
 #***********************************************************************
 # This file implements regression tests for SQLite library.
 #
-# $Id: vtab2.test,v 1.9 2008/10/13 10:37:50 danielk1977 Exp $
 
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
+set testprefix vtab2
 
 ifcapable !vtab||!schema_pragmas {
   finish_test
@@ -133,4 +133,24 @@ do_test vtab2-4.5 {
   execsql { SELECT * FROM fkey }
 } {t1 a}
 
+#-------------------------------------------------------------------------
+#
+ifcapable fts3 {
+  reset_db
+  do_execsql_test 5.1 {
+    PRAGMA encoding='UTF16';
+  }
+
+  do_test 5.2 {
+    sqlite3_exec_hex db { CREATE VIRTUAL TABLE %C8 USING fts3 }
+  } {0 {}}
+
+  do_test 5.3 {
+    sqlite3_exec_hex db { CREATE VIRTUAL TABLE %C9 USING s }
+  } {/1 {malformed database schema.* already exists}/}
+}
+
+
+
 finish_test
+
diff --git a/test/walblock.test b/test/walblock.test
index 9a85ea4acc..0b0b2241e6 100644
--- a/test/walblock.test
+++ b/test/walblock.test
@@ -92,9 +92,9 @@ proc barrier_callback {method args} {
   set ::out ""
   testfixture $::C { db eval { SELECT * FROM t1 } } {set ::out}
 
-  do_test "1.2.2.(blocking 5 seconds)" { 
+  do_test "1.2.2.(blocking 10 seconds)" { 
     set ::continue 0
-    after 5000 {set ::continue 1}
+    after 10000 {set ::continue 1}
     vwait ::continue
     set ::out 
   } {}
diff --git a/test/with1.test b/test/with1.test
index 42d2277aef..ad88a67c22 100644
--- a/test/with1.test
+++ b/test/with1.test
@@ -827,5 +827,20 @@ WITH RECURSIVE
 SELECT x FROM t1 EXCEPT SELECT y FROM t2 ORDER BY 1;
 } {2 4 8 10 14 16 20}
 
+# 2015-03-21
+# Column wildcards on the LHS of a recursive table expression
+#
+do_catchsql_test 13.1 {
+  WITH RECURSIVE c(i) AS (SELECT * UNION ALL SELECT i+1 FROM c WHERE i<10)
+  SELECT i FROM c;
+} {1 {no tables specified}}
+do_catchsql_test 13.2 {
+  WITH RECURSIVE c(i) AS (SELECT 5,* UNION ALL SELECT i+1 FROM c WHERE i<10)
+  SELECT i FROM c;
+} {1 {no tables specified}}
+do_catchsql_test 13.3 {
+  WITH RECURSIVE c(i,j) AS (SELECT 5,* UNION ALL SELECT i+1,11 FROM c WHERE i<10)
+  SELECT i FROM c;
+} {1 {table c has 1 values for 2 columns}}
 
 finish_test
diff --git a/test/without_rowid6.test b/test/without_rowid6.test
index e827ccab90..8ca78ba63a 100644
--- a/test/without_rowid6.test
+++ b/test/without_rowid6.test
@@ -37,5 +37,81 @@ do_execsql_test without_rowid6-140 {
   SELECT c FROM t1 ORDER BY b LIMIT 5;
 } {x1y x2y x3y x4y x5y}
 
+# Column t1.b starts out as a unique index, but that index is
+# subsequently converted into a PRIMARY KEY.
+#
+do_execsql_test without_rowid6-200 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(
+    a UNIQUE,
+    b UNIQUE,
+    c UNIQUE,
+    PRIMARY KEY(b)
+  ) WITHOUT ROWID;
+  INSERT INTO t1(a,b,c) VALUES(1,8,3),(4,5,6),(7,2,9);
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {4 1}
+do_execsql_test without_rowid6-210 {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {/SEARCH TABLE t1 USING PRIMARY KEY .b>../}
+do_execsql_test without_rowid6-220 {
+  PRAGMA index_list(t1);
+} {/sqlite_autoindex_t1_2 1 pk/}
+
+do_execsql_test without_rowid6-300 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(
+    a UNIQUE,
+    b PRIMARY KEY,
+    c UNIQUE,
+    UNIQUE(b)
+  ) WITHOUT ROWID;
+  INSERT INTO t1(a,b,c) VALUES(1,8,3),(4,5,6),(7,2,9);
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {4 1}
+do_execsql_test without_rowid6-310 {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {/SEARCH TABLE t1 USING PRIMARY KEY .b>../}
+do_execsql_test without_rowid6-320 {
+  PRAGMA index_list(t1);
+} {/sqlite_autoindex_t1_2 1 pk/}
+
+do_execsql_test without_rowid6-400 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(
+    a UNIQUE,
+    b UNIQUE PRIMARY KEY,
+    c UNIQUE
+  ) WITHOUT ROWID;
+  INSERT INTO t1(a,b,c) VALUES(1,8,3),(4,5,6),(7,2,9);
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {4 1}
+do_execsql_test without_rowid6-410 {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {/SEARCH TABLE t1 USING PRIMARY KEY .b>../}
+do_execsql_test without_rowid6-420 {
+  PRAGMA index_list(t1);
+} {/sqlite_autoindex_t1_2 1 pk/}
+
+do_execsql_test without_rowid6-500 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a,b,c,
+    UNIQUE(b,c),
+    PRIMARY KEY(b,c)
+  ) WITHOUT ROWID;
+  INSERT INTO t1(a,b,c) VALUES(1,8,3),(4,5,6),(7,2,9);
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {4 1}
+do_execsql_test without_rowid6-510 {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {/SEARCH TABLE t1 USING PRIMARY KEY .b>../}
+do_execsql_test without_rowid6-520 {
+  PRAGMA index_list(t1);
+} {/sqlite_autoindex_t1_1 1 pk/}
+
 
 finish_test
diff --git a/tool/build-all-msvc.bat b/tool/build-all-msvc.bat
index 1fb61d4df8..728183629b 100755
--- a/tool/build-all-msvc.bat
+++ b/tool/build-all-msvc.bat
@@ -58,6 +58,9 @@ IF NOT DEFINED _AECHO (SET _AECHO=REM)
 IF NOT DEFINED _CECHO (SET _CECHO=REM)
 IF NOT DEFINED _VECHO (SET _VECHO=REM)
 
+SET REDIRECT=^>
+IF DEFINED __ECHO SET REDIRECT=^^^>
+
 %_AECHO% Running %0 %*
 
 REM SET DFLAGS=/L
@@ -318,7 +321,18 @@ FOR %%P IN (%PLATFORMS%) DO (
       %_AECHO% Building the %%B configuration for platform %%P with name %%D...
 
       IF /I "%%B" == "Debug" (
-        SET DEBUG=2
+        REM
+        REM NOTE: Using this level for the DEBUG environment variable should
+        REM       disable all compiler optimizations and prevent use of the
+        REM       NDEBUG define.  Additionally, both SQLITE_ENABLE_API_ARMOR
+        REM       and SQLITE_DEBUG defines should be enabled.
+        REM
+        SET DEBUG=3
+
+        REM
+        REM NOTE: Setting this to non-zero should enable the SQLITE_MEMDEBUG
+        REM       define.
+        REM
         SET MEMDEBUG=1
       ) ELSE (
         CALL :fn_UnsetVariable DEBUG
@@ -420,11 +434,11 @@ FOR %%P IN (%PLATFORMS%) DO (
         ) ELSE (
           REM
           REM NOTE: Even when the cleaning step has been disabled, we still
-          REM       need to remove the build output for the files we are
+          REM       need to remove the build output for all the files we are
           REM       specifically wanting to build for each platform.
           REM
-          %_AECHO% Cleaning final output files only...
-          %__ECHO% DEL /Q *.lo sqlite3.dll sqlite3.lib sqlite3.pdb
+          %_AECHO% Cleaning final core library output files only...
+          %__ECHO% DEL /Q *.lo sqlite3.dll sqlite3.lib sqlite3.pdb 2%REDIRECT% NUL
         )
 
         REM
@@ -476,6 +490,64 @@ FOR %%P IN (%PLATFORMS%) DO (
             GOTO errors
           )
         )
+
+        REM
+        REM NOTE: If requested, also build the shell executable.
+        REM
+        IF DEFINED BUILD_ALL_SHELL (
+          REM
+          REM NOTE: If necessary, make sure any previous build output for the
+          REM       shell executable is deleted.
+          REM
+          IF DEFINED NOCLEAN (
+            REM
+            REM NOTE: Even when the cleaning step has been disabled, we still
+            REM       need to remove the build output for all the files we are
+            REM       specifically wanting to build for each platform.
+            REM
+            %_AECHO% Cleaning final shell executable output files only...
+            %__ECHO% DEL /Q sqlite3.exe sqlite3sh.pdb 2%REDIRECT% NUL
+          )
+
+          REM
+          REM NOTE: Call NMAKE with the MSVC makefile to build the "sqlite3.exe"
+          REM       binary.  The x86 compiler will be used to compile the native
+          REM       command line tools needed during the build process itself.
+          REM       Also, disable looking for and/or linking to the native Tcl
+          REM       runtime library.
+          REM
+          %__ECHO% %NMAKE_CMD% sqlite3.exe XCOMPILE=1 USE_NATIVE_LIBPATHS=1 NO_TCL=1 %NMAKE_ARGS%
+
+          IF ERRORLEVEL 1 (
+            ECHO Failed to build %%B "sqlite3.exe" for platform %%P.
+            GOTO errors
+          )
+
+          REM
+          REM NOTE: Copy the "sqlite3.exe" file to the appropriate directory
+          REM       for the build and platform beneath the binary directory.
+          REM
+          %__ECHO% XCOPY sqlite3.exe "%BINARYDIRECTORY%\%%B\%%D\" %FFLAGS% %DFLAGS%
+
+          IF ERRORLEVEL 1 (
+            ECHO Failed to copy "sqlite3.exe" to "%BINARYDIRECTORY%\%%B\%%D\".
+            GOTO errors
+          )
+
+          REM
+          REM NOTE: Copy the "sqlite3sh.pdb" file to the appropriate directory
+          REM       for the build and platform beneath the binary directory
+          REM       unless we are prevented from doing so.
+          REM
+          IF NOT DEFINED NOSYMBOLS (
+            %__ECHO% XCOPY sqlite3sh.pdb "%BINARYDIRECTORY%\%%B\%%D\" %FFLAGS% %DFLAGS%
+
+            IF ERRORLEVEL 1 (
+              ECHO Failed to copy "sqlite3sh.pdb" to "%BINARYDIRECTORY%\%%B\%%D\".
+              GOTO errors
+            )
+          )
+        )
       )
     )
   )
diff --git a/tool/showdb.c b/tool/showdb.c
index 82b8c9f14f..7fdf7c91ad 100644
--- a/tool/showdb.c
+++ b/tool/showdb.c
@@ -375,7 +375,7 @@ static void decodeCell(
   int szPgHdr,            /* Size of the page header.  0 or 100 */
   int ofst                /* Cell begins at a[ofst] */
 ){
-  int i, j;
+  int i, j = 0;
   int leftChild;
   i64 k;
   i64 nPayload;