diff --git a/Makefile.in b/Makefile.in
index 168bce6602..2d781fc542 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -41,7 +41,7 @@ TCC += -D_HAVE_SQLITE_CONFIG_H -DBUILD_sqlite
 # Omitting the define will cause extra debugging code to be inserted and
 # includes extra comments when "EXPLAIN stmt" is used.
 #
-TCC += @TARGET_DEBUG@ @XTHREADCONNECT@
+TCC += @TARGET_DEBUG@
 
 # Compiler options needed for programs that use the TCL library.
 #
diff --git a/config.h.in b/config.h.in
index efc1d47bc6..36fd60781c 100644
--- a/config.h.in
+++ b/config.h.in
@@ -27,6 +27,9 @@
 /* Define to 1 if you have the <inttypes.h> header file. */
 #undef HAVE_INTTYPES_H
 
+/* Define to 1 if you have the `isnan' function. */
+#undef HAVE_ISNAN
+
 /* Define to 1 if you have the `localtime_r' function. */
 #undef HAVE_LOCALTIME_R
 
@@ -48,6 +51,9 @@
 /* Define to 1 if you have the <stdlib.h> header file. */
 #undef HAVE_STDLIB_H
 
+/* Define to 1 if you have the strchrnul() function */
+#undef HAVE_STRCHRNUL
+
 /* Define to 1 if you have the <strings.h> header file. */
 #undef HAVE_STRINGS_H
 
diff --git a/configure b/configure
index c0f751db62..4ad61ad8f4 100755
--- a/configure
+++ b/configure
@@ -868,7 +868,6 @@ RELEASE
 VERSION_NUMBER
 BUILD_CC
 SQLITE_THREADSAFE
-XTHREADCONNECT
 ALLOWRELEASE
 TEMP_STORE
 BUILD_EXEEXT
@@ -906,9 +905,7 @@ enable_fast_install
 with_gnu_ld
 enable_libtool_lock
 enable_largefile
-with_hints
 enable_threadsafe
-enable_cross_thread_connections
 enable_releasemode
 enable_tempstore
 enable_tcl
@@ -1562,9 +1559,7 @@ Optional Features:
                           optimize for fast installation [default=yes]
   --disable-libtool-lock  avoid locking (might break parallel builds)
   --disable-largefile     omit support for large files
-  --enable-threadsafe     Support threadsafe operation
-  --enable-cross-thread-connections
-                          Allow connection sharing across threads
+  --disable-threadsafe    Disable mutexing
   --enable-releasemode    Support libtool link to release mode
   --enable-tempstore      Use an in-ram database for temporary tables
                           (never,no,yes,always)
@@ -1573,7 +1568,8 @@ Optional Features:
   --enable-debug          enable debugging & verbose explain
   --disable-amalgamation  Disable the amalgamation and instead build all files
                           separately
-  --enable-load-extension Enable loading of external extensions
+  --disable-load-extension
+                          Disable loading of external extensions
   --enable-gcov           Enable coverage testing using gcov
 
 Optional Packages:
@@ -1582,7 +1578,6 @@ Optional Packages:
   --with-pic              try to use only PIC/non-PIC objects [default=use
                           both]
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
-  --with-hints=FILE       Read configuration options from FILE
   --with-tcl=DIR          directory containing tcl configuration
                           (tclConfig.sh)
   --with-readline-lib     specify readline library
@@ -2058,9 +2053,6 @@ please regen with autoconf" >&2;}
    { (exit 1); exit 1; }; }
 fi
 
-# The following RCS revision string applies to configure.in
-# $Revision: 1.56 $
-
 #########
 # Programs needed
 #
@@ -3732,13 +3724,13 @@ if test "${lt_cv_nm_interface+set}" = set; then
 else
   lt_cv_nm_interface="BSD nm"
   echo "int some_variable = 0;" > conftest.$ac_ext
-  (eval echo "\"\$as_me:3735: $ac_compile\"" >&5)
+  (eval echo "\"\$as_me:3727: $ac_compile\"" >&5)
   (eval "$ac_compile" 2>conftest.err)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:3738: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
+  (eval echo "\"\$as_me:3730: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
   (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:3741: output\"" >&5)
+  (eval echo "\"\$as_me:3733: output\"" >&5)
   cat conftest.out >&5
   if $GREP 'External.*some_variable' conftest.out > /dev/null; then
     lt_cv_nm_interface="MS dumpbin"
@@ -4960,7 +4952,7 @@ ia64-*-hpux*)
   ;;
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 4963 "configure"' > conftest.$ac_ext
+  echo '#line 4955 "configure"' > conftest.$ac_ext
   if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -6829,11 +6821,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:6832: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:6824: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:6836: \$? = $ac_status" >&5
+   echo "$as_me:6828: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -7168,11 +7160,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7171: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7163: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:7175: \$? = $ac_status" >&5
+   echo "$as_me:7167: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -7273,11 +7265,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7276: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7268: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:7280: \$? = $ac_status" >&5
+   echo "$as_me:7272: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -7328,11 +7320,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7331: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7323: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:7335: \$? = $ac_status" >&5
+   echo "$as_me:7327: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -10141,7 +10133,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10144 "configure"
+#line 10136 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -10237,7 +10229,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10240 "configure"
+#line 10232 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12146,7 +12138,9 @@ done
 
 
 
-for ac_func in usleep fdatasync localtime_r gmtime_r localtime_s utime malloc_usable_size
+
+
+for ac_func in fdatasync gmtime_r isnan localtime_r localtime_s malloc_usabel_size strchrnul usleep utime
 do
 as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 { $as_echo "$as_me:$LINENO: checking for $ac_func" >&5
@@ -12342,45 +12336,6 @@ VERSION_NUMBER=`cat $srcdir/VERSION \
 $as_echo "$as_me: Version number set to $VERSION_NUMBER" >&6;}
 
 
-#########
-# Check to see if the --with-hints=FILE option is used.  If there is none,
-# then check for a files named "$host.hints" and ../$hosts.hints where
-# $host is the hostname of the build system.  If still no hints are
-# found, try looking in $system.hints and ../$system.hints where
-# $system is the result of uname -s.
-#
-
-# Check whether --with-hints was given.
-if test "${with_hints+set}" = set; then
-  withval=$with_hints; hints=$withval
-fi
-
-if test "$hints" = ""; then
-  host=`hostname | sed 's/\..*//'`
-  if test -r $host.hints; then
-    hints=$host.hints
-  else
-     if test -r ../$host.hints; then
-       hints=../$host.hints
-     fi
-  fi
-fi
-if test "$hints" = ""; then
-  sys=`uname -s`
-  if test -r $sys.hints; then
-    hints=$sys.hints
-  else
-     if test -r ../$sys.hints; then
-       hints=../$sys.hints
-     fi
-  fi
-fi
-if test "$hints" != ""; then
-  { $as_echo "$as_me:$LINENO: result: reading hints from $hints" >&5
-$as_echo "reading hints from $hints" >&6; }
-  . $hints
-fi
-
 #########
 # Locate a compiler for the build machine.  This compiler should
 # generate command-line programs that run on the build machine.
@@ -12552,31 +12507,6 @@ fi
 
 fi
 
-##########
-# Do we want to allow a connection created in one thread to be used
-# in another thread.  This does not work on many Linux systems (ex: RedHat 9)
-# due to bugs in the threading implementations.  This is thus off by default.
-#
-# Check whether --enable-cross-thread-connections was given.
-if test "${enable_cross_thread_connections+set}" = set; then
-  enableval=$enable_cross_thread_connections;
-else
-  enable_xthreadconnect=no
-fi
-
-{ $as_echo "$as_me:$LINENO: checking whether to allow connections to be shared across threads" >&5
-$as_echo_n "checking whether to allow connections to be shared across threads... " >&6; }
-if test "$enable_xthreadconnect" = "no"; then
-  XTHREADCONNECT=''
-  { $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-else
-  XTHREADCONNECT='-DSQLITE_ALLOW_XTHREAD_CONNECT=1'
-  { $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
-fi
-
-
 ##########
 # Do we want to support release
 #
@@ -13427,7 +13357,7 @@ fi
 if test "${enable_load_extension+set}" = set; then
   enableval=$enable_load_extension; use_loadextension=$enableval
 else
-  use_loadextension=no
+  use_loadextension=yes
 fi
 
 if test "${use_loadextension}" = "yes" ; then
diff --git a/configure.ac b/configure.ac
index 2e70f2c235..6a35aa3441 100644
--- a/configure.ac
+++ b/configure.ac
@@ -69,19 +69,6 @@
 #        The filename extension for executables on the
 #        target platform.  "" for Unix and ".exe" for windows.
 #
-# The generated configure script will make an attempt to guess
-# at all of the above parameters.  You can override any of
-# the guesses by setting the environment variable named
-# "config_AAAA" where "AAAA" is the name of the parameter
-# described above.  (Exception: srcdir cannot be set this way.)
-# If you have a file that sets one or more of these environment
-# variables, you can invoke configure as follows:
-#
-#           configure --with-hints=FILE
-#
-# where FILE is the name of the file that sets the environment
-# variables.  FILE should be an absolute pathname.
-#
 # This configure.in file is easy to reuse on other projects.  Just
 # change the argument to AC_INIT().  And disable any features that
 # you don't need (for example BLT) by erasing or commenting out
@@ -98,11 +85,6 @@ AC_MSG_ERROR([configure script is out of date:
 please regen with autoconf])
 fi
 
-dnl Put the RCS revision string after AC_INIT so that it will also
-dnl show in in configure.
-# The following RCS revision string applies to configure.in
-# $Revision: 1.56 $
-
 #########
 # Programs needed
 #
@@ -127,7 +109,7 @@ AC_CHECK_HEADERS([sys/types.h stdlib.h stdint.h inttypes.h malloc.h])
 #########
 # Figure out whether or not we have these functions
 #
-AC_CHECK_FUNCS([usleep fdatasync localtime_r gmtime_r localtime_s utime malloc_usable_size])
+AC_CHECK_FUNCS([fdatasync gmtime_r isnan localtime_r localtime_s malloc_usabel_size strchrnul usleep utime])
 
 #########
 # By default, we use the amalgamation (this may be changed below...)
@@ -180,41 +162,6 @@ VERSION_NUMBER=[`cat $srcdir/VERSION \
 AC_MSG_NOTICE(Version number set to $VERSION_NUMBER)
 AC_SUBST(VERSION_NUMBER)
 
-#########
-# Check to see if the --with-hints=FILE option is used.  If there is none,
-# then check for a files named "$host.hints" and ../$hosts.hints where
-# $host is the hostname of the build system.  If still no hints are
-# found, try looking in $system.hints and ../$system.hints where
-# $system is the result of uname -s.
-#
-AC_ARG_WITH(hints,
-  AC_HELP_STRING([--with-hints=FILE],[Read configuration options from FILE]),
-  hints=$withval)
-if test "$hints" = ""; then
-  host=`hostname | sed 's/\..*//'`
-  if test -r $host.hints; then
-    hints=$host.hints
-  else
-     if test -r ../$host.hints; then
-       hints=../$host.hints
-     fi
-  fi
-fi
-if test "$hints" = ""; then
-  sys=`uname -s`
-  if test -r $sys.hints; then
-    hints=$sys.hints
-  else
-     if test -r ../$sys.hints; then
-       hints=../$sys.hints
-     fi
-  fi
-fi
-if test "$hints" != ""; then
-  AC_MSG_RESULT(reading hints from $hints)
-  . $hints
-fi
-
 #########
 # Locate a compiler for the build machine.  This compiler should
 # generate command-line programs that run on the build machine.
@@ -236,7 +183,7 @@ AC_SUBST(BUILD_CC)
 # Do we want to support multithreaded use of sqlite
 #
 AC_ARG_ENABLE(threadsafe, 
-AC_HELP_STRING([--enable-threadsafe],[Support threadsafe operation]),,enable_threadsafe=yes)
+AC_HELP_STRING([--disable-threadsafe],[Disable mutexing]),,enable_threadsafe=yes)
 AC_MSG_CHECKING([whether to support threadsafe operation])
 if test "$enable_threadsafe" = "no"; then
   SQLITE_THREADSAFE=0
@@ -251,23 +198,6 @@ if test "$SQLITE_THREADSAFE" = "1"; then
   AC_SEARCH_LIBS(pthread_create, pthread)
 fi
 
-##########
-# Do we want to allow a connection created in one thread to be used
-# in another thread.  This does not work on many Linux systems (ex: RedHat 9)
-# due to bugs in the threading implementations.  This is thus off by default.
-#
-AC_ARG_ENABLE(cross-thread-connections, 
-AC_HELP_STRING([--enable-cross-thread-connections],[Allow connection sharing across threads]),,enable_xthreadconnect=no)
-AC_MSG_CHECKING([whether to allow connections to be shared across threads])
-if test "$enable_xthreadconnect" = "no"; then
-  XTHREADCONNECT=''
-  AC_MSG_RESULT([no])
-else
-  XTHREADCONNECT='-DSQLITE_ALLOW_XTHREAD_CONNECT=1'
-  AC_MSG_RESULT([yes])
-fi
-AC_SUBST(XTHREADCONNECT)
-
 ##########
 # Do we want to support release
 #
@@ -605,9 +535,9 @@ AC_SUBST(USE_AMALGAMATION)
 
 #########
 # See whether we should allow loadable extensions
-AC_ARG_ENABLE(load-extension, AC_HELP_STRING([--enable-load-extension],
-      [Enable loading of external extensions]),
-      [use_loadextension=$enableval],[use_loadextension=no])
+AC_ARG_ENABLE(load-extension, AC_HELP_STRING([--disable-load-extension],
+      [Disable loading of external extensions]),
+      [use_loadextension=$enableval],[use_loadextension=yes])
 if test "${use_loadextension}" = "yes" ; then
   OPT_FEATURE_FLAGS=""
   AC_SEARCH_LIBS(dlopen, dl)
diff --git a/manifest b/manifest
index 2e3821137d..8d577e9692 100644
--- a/manifest
+++ b/manifest
@@ -1,7 +1,7 @@
-C Get\sthings\scompiling\scleanly\swith\sMSVC\sand\sW4.
-D 2015-01-12T18:52:41.112
+C Merge\supdates\sfrom\strunk.
+D 2015-01-12T18:52:57.919
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
-F Makefile.in 33a180534a9ba2cf80f5f87e8288c26423d0a8d1
+F Makefile.in 9efcdb5c6025caea362cdfc38817451170fc6344
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
 F Makefile.msc 2ed20e3ee252eb85dea357940a2e5e5649f9dd86
 F Makefile.vxworks e1b65dea203f054e71653415bd8f96dcaed47858
@@ -36,10 +36,10 @@ F autoconf/tea/win/makefile.vc f89d0184d0eee5f7e356ea407964dcd139939928
 F autoconf/tea/win/nmakehlp.c 2070e086f39866b353a482d3a14dedaf26196506
 F autoconf/tea/win/rules.vc c511f222b80064096b705dbeb97060ee1d6b6d63
 F config.guess 226d9a188c6196f3033ffc651cbc9dcee1a42977
-F config.h.in 0921066a13130082764ab4ab6456f7b5bebe56de
+F config.h.in 42b71ad3fe21c9e88fa59e8458ca1a6bc72eb0c0
 F config.sub 9ebe4c3b3dab6431ece34f16828b594fb420da55
-F configure 4343c810cc772571210af75d1a8f7c2eb711d75a x
-F configure.ac 4cf9f60785143fa141b10962ccc885d973792e9a
+F configure f0438487966ab02dd0357c4ad27f1082e70a4b34 x
+F configure.ac 0c94d28b0a839fd0f35ccebded2ea4aed4424d65
 F contrib/sqlitecon.tcl 210a913ad63f9f991070821e599d600bd913e0ad
 F doc/lemon.html 334dbf6621b8fb8790297ec1abf3cfa4621709d1
 F doc/pager-invariants.txt 27fed9a70ddad2088750c4a2b493b63853da2710
@@ -179,8 +179,8 @@ F src/btreeInt.h a3d0ae1d511365e1a2b76ad10960dbe55c286f34
 F src/build.c f5cfd7b32216f695b995bbc7c1a395f6d451d11f
 F src/callback.c 7b44ce59674338ad48b0e84e7b72f935ea4f68b0
 F src/complete.c 198a0066ba60ab06fc00fba1998d870a4d575463
-F src/ctime.c df19848891c8a553c80e6f5a035e768280952d1a
-F src/date.c 53cedb541686b30eb5495753f0b622909a928780
+F src/ctime.c 98f89724adc891a1a4c655bee04e33e716e05887
+F src/date.c e4d50b3283696836ec1036b695ead9a19e37a5ac
 F src/delete.c bd1a91ddd247ce13004075251e0b7fe2bf9925ef
 F src/expr.c 7be80f7dc337329a24df45c2f3bdb2ea3b64c90e
 F src/fault.c 160a0c015b6c2629d3899ed2daf63d75754a32bb
@@ -195,10 +195,10 @@ F src/journal.c b4124532212b6952f42eb2c12fa3c25701d8ba8d
 F src/legacy.c ba1863ea58c4c840335a84ec276fc2b25e22bc4e
 F src/lempar.c 7274c97d24bb46631e504332ccd3bd1b37841770
 F src/loadext.c 86bd4e2fccd520b748cba52492ab60c4a770f660
-F src/main.c c82bc2650f64edfaf9c103342d0f8c58665213d4
+F src/main.c 05bf368c934cc73d02906030846eb4d1818c10f7
 F src/malloc.c 740db54387204c9a2eb67c6d98e68b08e9ef4eab
 F src/mem0.c 6a55ebe57c46ca1a7d98da93aaa07f99f1059645
-F src/mem1.c faf615aafd8be74a71494dfa027c113ea5c6615f
+F src/mem1.c abe6ee469b6c5a35c7f22bfeb9c9bac664a1c987
 F src/mem2.c f1940d9e91948dd6a908fbb9ce3835c36b5d83c3
 F src/mem3.c 61c9d47b792908c532ca3a62b999cf21795c6534
 F src/mem5.c 61eeb90134f9a5be6c2e68d8daae7628b25953fb
@@ -214,7 +214,7 @@ 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 949cdedc74dbf3c17f2c9743064ce307026f871e
+F src/os_unix.c aefeaf915aaef9f81aa2645e0d5d06fa1bd83beb
 F src/os_win.c 91d3d08e33ec0258d180d4c8255492f47d15e007
 F src/os_win.h 09e751b20bbc107ffbd46e13555dc73576d88e21
 F src/pager.c 4120a49ecd37697e28f5ed807f470b9c0b88410c
@@ -225,21 +225,21 @@ F src/pcache.h b44658c9c932d203510279439d891a2a83e12ba8
 F src/pcache1.c 1e77432b40b7d3288327d9cdf399dcdfd2b6d3bf
 F src/pragma.c ba149bbbc90783f84815636c509ced8eac11bbcf
 F src/prepare.c 173a5a499138451b2561614ecb87d78f9f4644b9
-F src/printf.c 9e75a6a0b55bf61cfff7d7e19d89834a1b938236
+F src/printf.c ea82bcb1b83273b4c67177c233c1f78c81fc42f9
 F src/random.c ba2679f80ec82c4190062d756f22d0c358180696
 F src/resolve.c f6c46d3434439ab2084618d603e6d6dbeb0d6ada
 F src/rowset.c eccf6af6d620aaa4579bd3b72c1b6395d9e9fa1e
 F src/select.c e4c38c75e36f28aed80a69a725d888751bfd53df
-F src/shell.c 0cebd04b204051652e969773af70feb42cf9bc2b
+F src/shell.c 5b8e786a7c8eec87fa3f2ea615b337d2d99e284c
 F src/sqlite.h.in 9dfc99d6533d36d6a549c4f3f01cacc8be956ada
 F src/sqlite3.rc 992c9f5fb8285ae285d6be28240a7e8d3a7f2bad
 F src/sqlite3ext.h 17d487c3c91b0b8c584a32fbeb393f6f795eea7d
-F src/sqliteInt.h f25fe9df72dfee0eedfde4bacd0f02077d557631
+F src/sqliteInt.h eaf210295b551d4e40e622aec1b2261c0b28f844
 F src/sqliteLimit.h 164b0e6749d31e0daa1a4589a169d31c0dec7b3d
 F src/status.c 81712116e826b0089bb221b018929536b2b5406f
 F src/table.c e7a09215315a978057fb42c640f890160dbcc45e
-F src/tclsqlite.c c6a21c64da1490e14d53cdc2062d1e2e57942622
-F src/test1.c 460d39e7abbcd0c61c9788c06e0d925f4d1e6a22
+F src/tclsqlite.c b1d0a181a9f8e8dae960370518a3450db93a6a8c
+F src/test1.c 163cff8c4ebdda512e3b055716e3cc7f0e563a44
 F src/test2.c 98049e51a17dc62606a99a9eb95ee477f9996712
 F src/test3.c 1c0e5d6f080b8e33c1ce8b3078e7013fdbcd560c
 F src/test4.c 9b32d22f5f150abe23c1830e2057c4037c45b3df
@@ -253,7 +253,7 @@ F src/test_autoext.c dea8a01a7153b9adc97bd26161e4226329546e12
 F src/test_backup.c 3875e899222b651e18b662f86e0e50daa946344e
 F src/test_blob.c 1f2e3e25255b731c4fcf15ee7990d06347cb6c09
 F src/test_btree.c 2e9978eca99a9a4bfa8cae949efb00886860a64f
-F src/test_config.c 035c17a173937d019b8dfc1d524f9d3fc8123504
+F src/test_config.c e7b2e1634324d746aa5e1c7e0929470e8be27953
 F src/test_demovfs.c 69b2085076654ebc18014cbc6386f04409c959a9
 F src/test_devsym.c e7498904e72ba7491d142d5c83b476c4e76993bc
 F src/test_fs.c ced436e3d4b8e4681328409b8081051ce614e28f
@@ -290,7 +290,7 @@ F src/tokenize.c e00458c9938072b0ea711c850b8dcf4ddcb5fe18
 F src/trigger.c 25571661fdeae8c7f975ff40ffec205520a3f92f
 F src/update.c 3c4ecc282accf12d39edb8d524cf089645e55a13
 F src/utf.c fc6b889ba0779b7722634cdeaa25f1930d93820c
-F src/util.c 3b627daa45c7308c1e36e3dbaa3f9ce7e5c7fa73
+F src/util.c 98a7627ca48ad3265b6940915a1d08355eb3fc7e
 F src/vacuum.c 9b30ec729337dd012ed88d4c292922c8ef9cf00c
 F src/vdbe.c ddfc977981cd6324668aa6b114045eb1c677421a
 F src/vdbe.h 6fc69d9c5e146302c56e163cb4b31d1ee64a18c3
@@ -299,7 +299,7 @@ F src/vdbeapi.c 4bc511a46b9839392ae0e90844a71dc96d9dbd71
 F src/vdbeaux.c 07ef87c6d4b5abdf13ff33babb10205702fdab0a
 F src/vdbeblob.c 4af4bfb71f6df7778397b4a0ebc1879793276778
 F src/vdbemem.c 31d8eabb0cd78bfeab4e5124c7363c3e9e54db9f
-F src/vdbesort.c 560bdfd9eb3ae3205196e0d64ccd1de925caa6c7
+F src/vdbesort.c 6d64c5448b64851b99931ede980addc3af70d5e2
 F src/vdbetrace.c 7e4222955e07dd707a2f360c0eb73452be1cb010
 F src/vtab.c c08ec66f45919eaa726bf88aa53eb08379d607f9
 F src/wal.c 85353539f2d9d0c91ebd057c32525b1e1aa3335e
@@ -802,7 +802,7 @@ F test/randexpr1.test eda062a97e60f9c38ae8d806b03b0ddf23d796df
 F test/rdonly.test dd30a4858d8e0fbad2304c2bd74a33d4df36412a
 F test/regexp1.test 497ea812f264d12b6198d6e50a76be4a1973a9d8
 F test/reindex.test 44edd3966b474468b823d481eafef0c305022254
-F test/releasetest.tcl 58ede36fff67c0799e44995f2b025f8854773c0a
+F test/releasetest.tcl 13f401c10dd4fe1a2fb811ae6ed27fd7d1300d3c
 F test/resolver01.test 33abf37ff8335e6bf98f2b45a0af3e06996ccd9a
 F test/rollback.test 458fe73eb3ffdfdf9f6ba3e9b7350a6220414dea
 F test/rollback2.test fc14cf6d1a2b250d2735ef16124b971bce152f14
@@ -1236,7 +1236,7 @@ F tool/vdbe_profile.tcl 67746953071a9f8f2f668b73fe899074e2c6d8c1
 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
 F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32
 F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
-P 2b8eecbfe7935d3d9826fbcd473dd3a49138ad11
-R 23426bb53239eb240dd8df9d0d219aeb
+P c8725fa5fa361959b0f0a3fb36f204905d6f0ae9 11e81ac2a7c917f7c9afc218d104d9870daf9668
+R 2eb9ddda90091ff81afdfabf278ccd4b
 U mistachkin
-Z 96c406dd077f9e953d8ddb5aba51e0dd
+Z b3ea8767e897ce2d6470ea9439664def
diff --git a/manifest.uuid b/manifest.uuid
index 9fb5a9bb7d..fd770dd259 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-c8725fa5fa361959b0f0a3fb36f204905d6f0ae9
\ No newline at end of file
+ca5f2c545216c82486e66d26f55b49cbf351ffdc
\ No newline at end of file
diff --git a/src/ctime.c b/src/ctime.c
index 59dc972d8d..4f98ffef61 100644
--- a/src/ctime.c
+++ b/src/ctime.c
@@ -33,91 +33,91 @@ static const char * const azCompileOpt[] = {
 #define CTIMEOPT_VAL_(opt) #opt
 #define CTIMEOPT_VAL(opt) CTIMEOPT_VAL_(opt)
 
-#ifdef SQLITE_32BIT_ROWID
+#if SQLITE_32BIT_ROWID
   "32BIT_ROWID",
 #endif
-#ifdef SQLITE_4_BYTE_ALIGNED_MALLOC
+#if SQLITE_4_BYTE_ALIGNED_MALLOC
   "4_BYTE_ALIGNED_MALLOC",
 #endif
-#ifdef SQLITE_CASE_SENSITIVE_LIKE
+#if SQLITE_CASE_SENSITIVE_LIKE
   "CASE_SENSITIVE_LIKE",
 #endif
-#ifdef SQLITE_CHECK_PAGES
+#if SQLITE_CHECK_PAGES
   "CHECK_PAGES",
 #endif
-#ifdef SQLITE_COVERAGE_TEST
+#if SQLITE_COVERAGE_TEST
   "COVERAGE_TEST",
 #endif
-#ifdef SQLITE_DEBUG
+#if SQLITE_DEBUG
   "DEBUG",
 #endif
-#ifdef SQLITE_DEFAULT_LOCKING_MODE
+#if SQLITE_DEFAULT_LOCKING_MODE
   "DEFAULT_LOCKING_MODE=" CTIMEOPT_VAL(SQLITE_DEFAULT_LOCKING_MODE),
 #endif
 #if defined(SQLITE_DEFAULT_MMAP_SIZE) && !defined(SQLITE_DEFAULT_MMAP_SIZE_xc)
   "DEFAULT_MMAP_SIZE=" CTIMEOPT_VAL(SQLITE_DEFAULT_MMAP_SIZE),
 #endif
-#ifdef SQLITE_DISABLE_DIRSYNC
+#if SQLITE_DISABLE_DIRSYNC
   "DISABLE_DIRSYNC",
 #endif
-#ifdef SQLITE_DISABLE_LFS
+#if SQLITE_DISABLE_LFS
   "DISABLE_LFS",
 #endif
-#ifdef SQLITE_ENABLE_API_ARMOR
+#if SQLITE_ENABLE_API_ARMOR
   "ENABLE_API_ARMOR",
 #endif
-#ifdef SQLITE_ENABLE_ATOMIC_WRITE
+#if SQLITE_ENABLE_ATOMIC_WRITE
   "ENABLE_ATOMIC_WRITE",
 #endif
-#ifdef SQLITE_ENABLE_CEROD
+#if SQLITE_ENABLE_CEROD
   "ENABLE_CEROD",
 #endif
-#ifdef SQLITE_ENABLE_COLUMN_METADATA
+#if SQLITE_ENABLE_COLUMN_METADATA
   "ENABLE_COLUMN_METADATA",
 #endif
-#ifdef SQLITE_ENABLE_EXPENSIVE_ASSERT
+#if SQLITE_ENABLE_EXPENSIVE_ASSERT
   "ENABLE_EXPENSIVE_ASSERT",
 #endif
-#ifdef SQLITE_ENABLE_FTS1
+#if SQLITE_ENABLE_FTS1
   "ENABLE_FTS1",
 #endif
-#ifdef SQLITE_ENABLE_FTS2
+#if SQLITE_ENABLE_FTS2
   "ENABLE_FTS2",
 #endif
-#ifdef SQLITE_ENABLE_FTS3
+#if SQLITE_ENABLE_FTS3
   "ENABLE_FTS3",
 #endif
-#ifdef SQLITE_ENABLE_FTS3_PARENTHESIS
+#if SQLITE_ENABLE_FTS3_PARENTHESIS
   "ENABLE_FTS3_PARENTHESIS",
 #endif
-#ifdef SQLITE_ENABLE_FTS4
+#if SQLITE_ENABLE_FTS4
   "ENABLE_FTS4",
 #endif
-#ifdef SQLITE_ENABLE_ICU
+#if SQLITE_ENABLE_ICU
   "ENABLE_ICU",
 #endif
-#ifdef SQLITE_ENABLE_IOTRACE
+#if SQLITE_ENABLE_IOTRACE
   "ENABLE_IOTRACE",
 #endif
-#ifdef SQLITE_ENABLE_LOAD_EXTENSION
+#if SQLITE_ENABLE_LOAD_EXTENSION
   "ENABLE_LOAD_EXTENSION",
 #endif
-#ifdef SQLITE_ENABLE_LOCKING_STYLE
+#if SQLITE_ENABLE_LOCKING_STYLE
   "ENABLE_LOCKING_STYLE=" CTIMEOPT_VAL(SQLITE_ENABLE_LOCKING_STYLE),
 #endif
-#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
+#if SQLITE_ENABLE_MEMORY_MANAGEMENT
   "ENABLE_MEMORY_MANAGEMENT",
 #endif
-#ifdef SQLITE_ENABLE_MEMSYS3
+#if SQLITE_ENABLE_MEMSYS3
   "ENABLE_MEMSYS3",
 #endif
-#ifdef SQLITE_ENABLE_MEMSYS5
+#if SQLITE_ENABLE_MEMSYS5
   "ENABLE_MEMSYS5",
 #endif
-#ifdef SQLITE_ENABLE_OVERSIZE_CELL_CHECK
+#if SQLITE_ENABLE_OVERSIZE_CELL_CHECK
   "ENABLE_OVERSIZE_CELL_CHECK",
 #endif
-#ifdef SQLITE_ENABLE_RTREE
+#if SQLITE_ENABLE_RTREE
   "ENABLE_RTREE",
 #endif
 #if defined(SQLITE_ENABLE_STAT4)
@@ -125,31 +125,31 @@ static const char * const azCompileOpt[] = {
 #elif defined(SQLITE_ENABLE_STAT3)
   "ENABLE_STAT3",
 #endif
-#ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
+#if SQLITE_ENABLE_UNLOCK_NOTIFY
   "ENABLE_UNLOCK_NOTIFY",
 #endif
-#ifdef SQLITE_ENABLE_UPDATE_DELETE_LIMIT
+#if SQLITE_ENABLE_UPDATE_DELETE_LIMIT
   "ENABLE_UPDATE_DELETE_LIMIT",
 #endif
-#ifdef SQLITE_HAS_CODEC
+#if SQLITE_HAS_CODEC
   "HAS_CODEC",
 #endif
-#ifdef SQLITE_HAVE_ISNAN
+#if HAVE_ISNAN || SQLITE_HAVE_ISNAN
   "HAVE_ISNAN",
 #endif
-#ifdef SQLITE_HOMEGROWN_RECURSIVE_MUTEX
+#if SQLITE_HOMEGROWN_RECURSIVE_MUTEX
   "HOMEGROWN_RECURSIVE_MUTEX",
 #endif
-#ifdef SQLITE_IGNORE_AFP_LOCK_ERRORS
+#if SQLITE_IGNORE_AFP_LOCK_ERRORS
   "IGNORE_AFP_LOCK_ERRORS",
 #endif
-#ifdef SQLITE_IGNORE_FLOCK_LOCK_ERRORS
+#if SQLITE_IGNORE_FLOCK_LOCK_ERRORS
   "IGNORE_FLOCK_LOCK_ERRORS",
 #endif
 #ifdef SQLITE_INT64_TYPE
   "INT64_TYPE",
 #endif
-#ifdef SQLITE_LOCK_TRACE
+#if SQLITE_LOCK_TRACE
   "LOCK_TRACE",
 #endif
 #if defined(SQLITE_MAX_MMAP_SIZE) && !defined(SQLITE_MAX_MMAP_SIZE_xc)
@@ -158,226 +158,226 @@ static const char * const azCompileOpt[] = {
 #ifdef SQLITE_MAX_SCHEMA_RETRY
   "MAX_SCHEMA_RETRY=" CTIMEOPT_VAL(SQLITE_MAX_SCHEMA_RETRY),
 #endif
-#ifdef SQLITE_MEMDEBUG
+#if SQLITE_MEMDEBUG
   "MEMDEBUG",
 #endif
-#ifdef SQLITE_MIXED_ENDIAN_64BIT_FLOAT
+#if SQLITE_MIXED_ENDIAN_64BIT_FLOAT
   "MIXED_ENDIAN_64BIT_FLOAT",
 #endif
-#ifdef SQLITE_NO_SYNC
+#if SQLITE_NO_SYNC
   "NO_SYNC",
 #endif
-#ifdef SQLITE_OMIT_ALTERTABLE
+#if SQLITE_OMIT_ALTERTABLE
   "OMIT_ALTERTABLE",
 #endif
-#ifdef SQLITE_OMIT_ANALYZE
+#if SQLITE_OMIT_ANALYZE
   "OMIT_ANALYZE",
 #endif
-#ifdef SQLITE_OMIT_ATTACH
+#if SQLITE_OMIT_ATTACH
   "OMIT_ATTACH",
 #endif
-#ifdef SQLITE_OMIT_AUTHORIZATION
+#if SQLITE_OMIT_AUTHORIZATION
   "OMIT_AUTHORIZATION",
 #endif
-#ifdef SQLITE_OMIT_AUTOINCREMENT
+#if SQLITE_OMIT_AUTOINCREMENT
   "OMIT_AUTOINCREMENT",
 #endif
-#ifdef SQLITE_OMIT_AUTOINIT
+#if SQLITE_OMIT_AUTOINIT
   "OMIT_AUTOINIT",
 #endif
-#ifdef SQLITE_OMIT_AUTOMATIC_INDEX
+#if SQLITE_OMIT_AUTOMATIC_INDEX
   "OMIT_AUTOMATIC_INDEX",
 #endif
-#ifdef SQLITE_OMIT_AUTORESET
+#if SQLITE_OMIT_AUTORESET
   "OMIT_AUTORESET",
 #endif
-#ifdef SQLITE_OMIT_AUTOVACUUM
+#if SQLITE_OMIT_AUTOVACUUM
   "OMIT_AUTOVACUUM",
 #endif
-#ifdef SQLITE_OMIT_BETWEEN_OPTIMIZATION
+#if SQLITE_OMIT_BETWEEN_OPTIMIZATION
   "OMIT_BETWEEN_OPTIMIZATION",
 #endif
-#ifdef SQLITE_OMIT_BLOB_LITERAL
+#if SQLITE_OMIT_BLOB_LITERAL
   "OMIT_BLOB_LITERAL",
 #endif
-#ifdef SQLITE_OMIT_BTREECOUNT
+#if SQLITE_OMIT_BTREECOUNT
   "OMIT_BTREECOUNT",
 #endif
-#ifdef SQLITE_OMIT_BUILTIN_TEST
+#if SQLITE_OMIT_BUILTIN_TEST
   "OMIT_BUILTIN_TEST",
 #endif
-#ifdef SQLITE_OMIT_CAST
+#if SQLITE_OMIT_CAST
   "OMIT_CAST",
 #endif
-#ifdef SQLITE_OMIT_CHECK
+#if SQLITE_OMIT_CHECK
   "OMIT_CHECK",
 #endif
-#ifdef SQLITE_OMIT_COMPLETE
+#if SQLITE_OMIT_COMPLETE
   "OMIT_COMPLETE",
 #endif
-#ifdef SQLITE_OMIT_COMPOUND_SELECT
+#if SQLITE_OMIT_COMPOUND_SELECT
   "OMIT_COMPOUND_SELECT",
 #endif
-#ifdef SQLITE_OMIT_CTE
+#if SQLITE_OMIT_CTE
   "OMIT_CTE",
 #endif
-#ifdef SQLITE_OMIT_DATETIME_FUNCS
+#if SQLITE_OMIT_DATETIME_FUNCS
   "OMIT_DATETIME_FUNCS",
 #endif
-#ifdef SQLITE_OMIT_DECLTYPE
+#if SQLITE_OMIT_DECLTYPE
   "OMIT_DECLTYPE",
 #endif
-#ifdef SQLITE_OMIT_DEPRECATED
+#if SQLITE_OMIT_DEPRECATED
   "OMIT_DEPRECATED",
 #endif
-#ifdef SQLITE_OMIT_DISKIO
+#if SQLITE_OMIT_DISKIO
   "OMIT_DISKIO",
 #endif
-#ifdef SQLITE_OMIT_EXPLAIN
+#if SQLITE_OMIT_EXPLAIN
   "OMIT_EXPLAIN",
 #endif
-#ifdef SQLITE_OMIT_FLAG_PRAGMAS
+#if SQLITE_OMIT_FLAG_PRAGMAS
   "OMIT_FLAG_PRAGMAS",
 #endif
-#ifdef SQLITE_OMIT_FLOATING_POINT
+#if SQLITE_OMIT_FLOATING_POINT
   "OMIT_FLOATING_POINT",
 #endif
-#ifdef SQLITE_OMIT_FOREIGN_KEY
+#if SQLITE_OMIT_FOREIGN_KEY
   "OMIT_FOREIGN_KEY",
 #endif
-#ifdef SQLITE_OMIT_GET_TABLE
+#if SQLITE_OMIT_GET_TABLE
   "OMIT_GET_TABLE",
 #endif
-#ifdef SQLITE_OMIT_INCRBLOB
+#if SQLITE_OMIT_INCRBLOB
   "OMIT_INCRBLOB",
 #endif
-#ifdef SQLITE_OMIT_INTEGRITY_CHECK
+#if SQLITE_OMIT_INTEGRITY_CHECK
   "OMIT_INTEGRITY_CHECK",
 #endif
-#ifdef SQLITE_OMIT_LIKE_OPTIMIZATION
+#if SQLITE_OMIT_LIKE_OPTIMIZATION
   "OMIT_LIKE_OPTIMIZATION",
 #endif
-#ifdef SQLITE_OMIT_LOAD_EXTENSION
+#if SQLITE_OMIT_LOAD_EXTENSION
   "OMIT_LOAD_EXTENSION",
 #endif
-#ifdef SQLITE_OMIT_LOCALTIME
+#if SQLITE_OMIT_LOCALTIME
   "OMIT_LOCALTIME",
 #endif
-#ifdef SQLITE_OMIT_LOOKASIDE
+#if SQLITE_OMIT_LOOKASIDE
   "OMIT_LOOKASIDE",
 #endif
-#ifdef SQLITE_OMIT_MEMORYDB
+#if SQLITE_OMIT_MEMORYDB
   "OMIT_MEMORYDB",
 #endif
-#ifdef SQLITE_OMIT_OR_OPTIMIZATION
+#if SQLITE_OMIT_OR_OPTIMIZATION
   "OMIT_OR_OPTIMIZATION",
 #endif
-#ifdef SQLITE_OMIT_PAGER_PRAGMAS
+#if SQLITE_OMIT_PAGER_PRAGMAS
   "OMIT_PAGER_PRAGMAS",
 #endif
-#ifdef SQLITE_OMIT_PRAGMA
+#if SQLITE_OMIT_PRAGMA
   "OMIT_PRAGMA",
 #endif
-#ifdef SQLITE_OMIT_PROGRESS_CALLBACK
+#if SQLITE_OMIT_PROGRESS_CALLBACK
   "OMIT_PROGRESS_CALLBACK",
 #endif
-#ifdef SQLITE_OMIT_QUICKBALANCE
+#if SQLITE_OMIT_QUICKBALANCE
   "OMIT_QUICKBALANCE",
 #endif
-#ifdef SQLITE_OMIT_REINDEX
+#if SQLITE_OMIT_REINDEX
   "OMIT_REINDEX",
 #endif
-#ifdef SQLITE_OMIT_SCHEMA_PRAGMAS
+#if SQLITE_OMIT_SCHEMA_PRAGMAS
   "OMIT_SCHEMA_PRAGMAS",
 #endif
-#ifdef SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS
+#if SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS
   "OMIT_SCHEMA_VERSION_PRAGMAS",
 #endif
-#ifdef SQLITE_OMIT_SHARED_CACHE
+#if SQLITE_OMIT_SHARED_CACHE
   "OMIT_SHARED_CACHE",
 #endif
-#ifdef SQLITE_OMIT_SUBQUERY
+#if SQLITE_OMIT_SUBQUERY
   "OMIT_SUBQUERY",
 #endif
-#ifdef SQLITE_OMIT_TCL_VARIABLE
+#if SQLITE_OMIT_TCL_VARIABLE
   "OMIT_TCL_VARIABLE",
 #endif
-#ifdef SQLITE_OMIT_TEMPDB
+#if SQLITE_OMIT_TEMPDB
   "OMIT_TEMPDB",
 #endif
-#ifdef SQLITE_OMIT_TRACE
+#if SQLITE_OMIT_TRACE
   "OMIT_TRACE",
 #endif
-#ifdef SQLITE_OMIT_TRIGGER
+#if SQLITE_OMIT_TRIGGER
   "OMIT_TRIGGER",
 #endif
-#ifdef SQLITE_OMIT_TRUNCATE_OPTIMIZATION
+#if SQLITE_OMIT_TRUNCATE_OPTIMIZATION
   "OMIT_TRUNCATE_OPTIMIZATION",
 #endif
-#ifdef SQLITE_OMIT_UTF16
+#if SQLITE_OMIT_UTF16
   "OMIT_UTF16",
 #endif
-#ifdef SQLITE_OMIT_VACUUM
+#if SQLITE_OMIT_VACUUM
   "OMIT_VACUUM",
 #endif
-#ifdef SQLITE_OMIT_VIEW
+#if SQLITE_OMIT_VIEW
   "OMIT_VIEW",
 #endif
-#ifdef SQLITE_OMIT_VIRTUALTABLE
+#if SQLITE_OMIT_VIRTUALTABLE
   "OMIT_VIRTUALTABLE",
 #endif
-#ifdef SQLITE_OMIT_WAL
+#if SQLITE_OMIT_WAL
   "OMIT_WAL",
 #endif
-#ifdef SQLITE_OMIT_WSD
+#if SQLITE_OMIT_WSD
   "OMIT_WSD",
 #endif
-#ifdef SQLITE_OMIT_XFER_OPT
+#if SQLITE_OMIT_XFER_OPT
   "OMIT_XFER_OPT",
 #endif
-#ifdef SQLITE_PERFORMANCE_TRACE
+#if SQLITE_PERFORMANCE_TRACE
   "PERFORMANCE_TRACE",
 #endif
-#ifdef SQLITE_PROXY_DEBUG
+#if SQLITE_PROXY_DEBUG
   "PROXY_DEBUG",
 #endif
-#ifdef SQLITE_RTREE_INT_ONLY
+#if SQLITE_RTREE_INT_ONLY
   "RTREE_INT_ONLY",
 #endif
-#ifdef SQLITE_SECURE_DELETE
+#if SQLITE_SECURE_DELETE
   "SECURE_DELETE",
 #endif
-#ifdef SQLITE_SMALL_STACK
+#if SQLITE_SMALL_STACK
   "SMALL_STACK",
 #endif
-#ifdef SQLITE_SOUNDEX
+#if SQLITE_SOUNDEX
   "SOUNDEX",
 #endif
-#ifdef SQLITE_SYSTEM_MALLOC
+#if SQLITE_SYSTEM_MALLOC
   "SYSTEM_MALLOC",
 #endif
-#ifdef SQLITE_TCL
+#if SQLITE_TCL
   "TCL",
 #endif
 #if defined(SQLITE_TEMP_STORE) && !defined(SQLITE_TEMP_STORE_xc)
   "TEMP_STORE=" CTIMEOPT_VAL(SQLITE_TEMP_STORE),
 #endif
-#ifdef SQLITE_TEST
+#if SQLITE_TEST
   "TEST",
 #endif
 #if defined(SQLITE_THREADSAFE)
   "THREADSAFE=" CTIMEOPT_VAL(SQLITE_THREADSAFE),
 #endif
-#ifdef SQLITE_USE_ALLOCA
+#if SQLITE_USE_ALLOCA
   "USE_ALLOCA",
 #endif
-#ifdef SQLITE_USER_AUTHENTICATION
+#if SQLITE_USER_AUTHENTICATION
   "USER_AUTHENTICATION",
 #endif
-#ifdef SQLITE_WIN32_MALLOC
+#if SQLITE_WIN32_MALLOC
   "WIN32_MALLOC",
 #endif
-#ifdef SQLITE_ZERO_MALLOC
+#if SQLITE_ZERO_MALLOC
   "ZERO_MALLOC"
 #endif
 };
@@ -392,7 +392,7 @@ static const char * const azCompileOpt[] = {
 int sqlite3_compileoption_used(const char *zOptName){
   int i, n;
 
-#ifdef SQLITE_ENABLE_API_ARMOR
+#if SQLITE_ENABLE_API_ARMOR
   if( zOptName==0 ){
     (void)SQLITE_MISUSE_BKPT;
     return 0;
diff --git a/src/date.c b/src/date.c
index d19b633608..5f3f247ca9 100644
--- a/src/date.c
+++ b/src/date.c
@@ -412,8 +412,9 @@ static void clearYMD_HMS_TZ(DateTime *p){
 ** already, check for an MSVC build environment that provides 
 ** localtime_s().
 */
-#if !defined(HAVE_LOCALTIME_R) && !defined(HAVE_LOCALTIME_S) && \
-     defined(_MSC_VER) && defined(_CRT_INSECURE_DEPRECATE)
+#if !HAVE_LOCALTIME_R && !HAVE_LOCALTIME_S \
+    && defined(_MSC_VER) && defined(_CRT_INSECURE_DEPRECATE)
+#undef  HAVE_LOCALTIME_S
 #define HAVE_LOCALTIME_S 1
 #endif
 
@@ -433,8 +434,7 @@ static void clearYMD_HMS_TZ(DateTime *p){
 */
 static int osLocaltime(time_t *t, struct tm *pTm){
   int rc;
-#if (!defined(HAVE_LOCALTIME_R) || !HAVE_LOCALTIME_R) \
-      && (!defined(HAVE_LOCALTIME_S) || !HAVE_LOCALTIME_S)
+#if !HAVE_LOCALTIME_R && !HAVE_LOCALTIME_S
   struct tm *pX;
 #if SQLITE_THREADSAFE>0
   sqlite3_mutex *mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER);
@@ -451,7 +451,7 @@ static int osLocaltime(time_t *t, struct tm *pTm){
 #ifndef SQLITE_OMIT_BUILTIN_TEST
   if( sqlite3GlobalConfig.bLocaltimeFault ) return 1;
 #endif
-#if defined(HAVE_LOCALTIME_R) && HAVE_LOCALTIME_R
+#if HAVE_LOCALTIME_R
   rc = localtime_r(t, pTm)==0;
 #else
   rc = localtime_s(pTm, t);
@@ -1092,7 +1092,7 @@ static void currentTimeFunc(
   iT = sqlite3StmtCurrentTime(context);
   if( iT<=0 ) return;
   t = iT/1000 - 10000*(sqlite3_int64)21086676;
-#ifdef HAVE_GMTIME_R
+#if HAVE_GMTIME_R
   pTm = gmtime_r(&t, &sNow);
 #else
   sqlite3_mutex_enter(sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER));
diff --git a/src/main.c b/src/main.c
index 625d768996..8cf16b001a 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1350,7 +1350,7 @@ static int sqliteDefaultBusyCallback(
  void *ptr,               /* Database connection */
  int count                /* Number of times table has been busy */
 ){
-#if SQLITE_OS_WIN || (defined(HAVE_USLEEP) && HAVE_USLEEP)
+#if SQLITE_OS_WIN || HAVE_USLEEP
   static const u8 delays[] =
      { 1, 2, 5, 10, 15, 20, 25, 25,  25,  50,  50, 100 };
   static const u8 totals[] =
diff --git a/src/mem1.c b/src/mem1.c
index 11fc1771ed..ec9a4e3a61 100644
--- a/src/mem1.c
+++ b/src/mem1.c
@@ -79,9 +79,9 @@ static malloc_zone_t* _sqliteZone_;
 ** The malloc.h header file is needed for malloc_usable_size() function
 ** on some systems (e.g. Linux).
 */
-#if defined(HAVE_MALLOC_H) && defined(HAVE_MALLOC_USABLE_SIZE)
-#  define SQLITE_USE_MALLOC_H
-#  define SQLITE_USE_MALLOC_USABLE_SIZE
+#if HAVE_MALLOC_H && HAVE_MALLOC_USABLE_SIZE
+#  define SQLITE_USE_MALLOC_H 1
+#  define SQLITE_USE_MALLOC_USABLE_SIZE 1
 /*
 ** The MSVCRT has malloc_usable_size(), but it is called _msize().  The
 ** use of _msize() is automatic, but can be disabled by compiling with
diff --git a/src/os_unix.c b/src/os_unix.c
index 3fcb0cff24..ddd6a802eb 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -3386,9 +3386,9 @@ int sqlite3_fullsync_count = 0;
 ** We do not trust systems to provide a working fdatasync().  Some do.
 ** Others do no.  To be safe, we will stick with the (slightly slower)
 ** fsync(). If you know that your system does support fdatasync() correctly,
-** then simply compile with -Dfdatasync=fdatasync
+** then simply compile with -Dfdatasync=fdatasync or -DHAVE_FDATASYNC
 */
-#if !defined(fdatasync)
+#if !defined(fdatasync) && !HAVE_FDATASYNC
 # define fdatasync fsync
 #endif
 
diff --git a/src/printf.c b/src/printf.c
index ac7b051631..428c959cc7 100644
--- a/src/printf.c
+++ b/src/printf.c
@@ -14,17 +14,6 @@
 */
 #include "sqliteInt.h"
 
-/*
-** If the strchrnul() library function is available, then set
-** HAVE_STRCHRNUL.  If that routine is not available, this module
-** will supply its own.  The built-in version is slower than
-** the glibc version so the glibc version is definitely preferred.
-*/
-#if !defined(HAVE_STRCHRNUL)
-# define HAVE_STRCHRNUL 0
-#endif
-
-
 /*
 ** Conversion types fall into various categories as defined by the
 ** following enumeration.
diff --git a/src/shell.c b/src/shell.c
index b7a8fa8b00..9c0481c0dd 100644
--- a/src/shell.c
+++ b/src/shell.c
@@ -55,17 +55,16 @@
 # include <sys/types.h>
 #endif
 
-#if defined(HAVE_READLINE) && HAVE_READLINE!=0
+#if HAVE_READLINE
 # include <readline/readline.h>
 # include <readline/history.h>
-#else
-# undef HAVE_READLINE
 #endif
-#if defined(HAVE_EDITLINE) && !defined(HAVE_READLINE)
+#if HAVE_EDITLINE
+# undef HAVE_READLINE
 # define HAVE_READLINE 1
 # include <editline/readline.h>
 #endif
-#if !defined(HAVE_READLINE)
+#if !HAVE_READLINE
 # define add_history(X)
 # define read_history(X)
 # define write_history(X)
@@ -432,7 +431,7 @@ static char *one_input_line(FILE *in, char *zPrior, int isContinuation){
     zResult = local_getline(zPrior, in);
   }else{
     zPrompt = isContinuation ? continuePrompt : mainPrompt;
-#if defined(HAVE_READLINE)
+#if HAVE_READLINE
     free(zPrior);
     zResult = readline(zPrompt);
     if( zResult && *zResult ) add_history(zResult);
@@ -4489,7 +4488,7 @@ int main(int argc, char **argv){
           sqlite3_snprintf(nHistory, zHistory,"%s/.sqlite_history", zHome);
         }
       }
-#if defined(HAVE_READLINE)
+#if HAVE_READLINE
       if( zHistory ) read_history(zHistory);
 #endif
       rc = process_input(&data, 0);
diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index 3c591ca1cd..379456d5f5 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -2985,7 +2985,7 @@ int sqlite3CantopenError(int);
 ** the SQLITE_ENABLE_FTS4 macro to serve as an alias for SQLITE_ENABLE_FTS3.
 */
 #if defined(SQLITE_ENABLE_FTS4) && !defined(SQLITE_ENABLE_FTS3)
-# define SQLITE_ENABLE_FTS3
+# define SQLITE_ENABLE_FTS3 1
 #endif
 
 /*
diff --git a/src/tclsqlite.c b/src/tclsqlite.c
index 32de527301..852f966a85 100644
--- a/src/tclsqlite.c
+++ b/src/tclsqlite.c
@@ -3813,6 +3813,11 @@ static void init_all(Tcl_Interp *interp){
 #endif
 }
 
+/* Needed for the setrlimit() system call on unix */
+#if defined(unix)
+#include <sys/resource.h>
+#endif
+
 #define TCLSH_MAIN main   /* Needed to fake out mktclapp */
 int TCLSH_MAIN(int argc, char **argv){
   Tcl_Interp *interp;
@@ -3826,6 +3831,17 @@ int TCLSH_MAIN(int argc, char **argv){
   }
 #endif
 
+  /* Since the primary use case for this binary is testing of SQLite,
+  ** be sure to generate core files if we crash */
+#if defined(SQLITE_TEST) && defined(unix)
+  { struct rlimit x;
+    getrlimit(RLIMIT_CORE, &x);
+    x.rlim_cur = x.rlim_max;
+    setrlimit(RLIMIT_CORE, &x);
+  }
+#endif /* SQLITE_TEST && unix */
+
+
   /* Call sqlite3_shutdown() once before doing anything else. This is to
   ** test that sqlite3_shutdown() can be safely called by a process before
   ** sqlite3_initialize() is. */
diff --git a/src/test1.c b/src/test1.c
index 8cbce70731..475473d77c 100644
--- a/src/test1.c
+++ b/src/test1.c
@@ -6618,6 +6618,7 @@ static int test_user_delete(
 **       1          Overflow a signed integer
 **       2          Jump based on an uninitialized variable
 **       3          Read after free
+**       4          Panic
 */
 static int test_bad_behavior(
   ClientData clientData, /* Pointer to an integer containing zero */
@@ -6656,6 +6657,10 @@ static int test_bad_behavior(
       Tcl_SetObjResult(interp, Tcl_NewIntObj(a[i]));
       break;
     }
+    case 4: {
+      Tcl_Panic("Deliberate panic");
+      break;
+    }
   }
   return TCL_OK;
 }  
diff --git a/src/test_config.c b/src/test_config.c
index 834113b33b..25e6a5698f 100644
--- a/src/test_config.c
+++ b/src/test_config.c
@@ -41,7 +41,7 @@
 ** procedures use this to determine when tests should be omitted.
 */
 static void set_options(Tcl_Interp *interp){
-#ifdef HAVE_MALLOC_USABLE_SIZE
+#if HAVE_MALLOC_USABLE_SIZE
   Tcl_SetVar2(interp, "sqlite_options", "malloc_usable_size", "1",
               TCL_GLOBAL_ONLY);
 #else
diff --git a/src/util.c b/src/util.c
index ab409fa256..6e64242e87 100644
--- a/src/util.c
+++ b/src/util.c
@@ -17,7 +17,7 @@
 */
 #include "sqliteInt.h"
 #include <stdarg.h>
-#ifdef SQLITE_HAVE_ISNAN
+#if HAVE_ISNAN || SQLITE_HAVE_ISNAN
 # include <math.h>
 #endif
 
@@ -58,7 +58,7 @@ int sqlite3FaultSim(int iTest){
 */
 int sqlite3IsNaN(double x){
   int rc;   /* The value return */
-#if !defined(SQLITE_HAVE_ISNAN)
+#if !SQLITE_HAVE_ISNAN && !HAVE_ISNAN
   /*
   ** Systems that support the isnan() library function should probably
   ** make use of it by compiling with -DSQLITE_HAVE_ISNAN.  But we have
@@ -88,9 +88,9 @@ int sqlite3IsNaN(double x){
   volatile double y = x;
   volatile double z = y;
   rc = (y!=z);
-#else  /* if defined(SQLITE_HAVE_ISNAN) */
+#else  /* if HAVE_ISNAN */
   rc = isnan(x);
-#endif /* SQLITE_HAVE_ISNAN */
+#endif /* HAVE_ISNAN */
   testcase( rc );
   return rc;
 }
diff --git a/src/vdbesort.c b/src/vdbesort.c
index d76487d491..5a43a10542 100644
--- a/src/vdbesort.c
+++ b/src/vdbesort.c
@@ -2414,6 +2414,7 @@ int sqlite3VdbeSorterNext(sqlite3 *db, const VdbeCursor *pCsr, int *pbEof){
     }else
 #endif
     /*if( !pSorter->bUseThreads )*/ {
+      assert( pSorter->pMerger!=0 );
       assert( pSorter->pMerger->pTask==(&pSorter->aTask[0]) );
       rc = vdbeMergeEngineStep(pSorter->pMerger, pbEof);
     }
diff --git a/test/releasetest.tcl b/test/releasetest.tcl
index 51bf29e31c..746fc9bb35 100644
--- a/test/releasetest.tcl
+++ b/test/releasetest.tcl
@@ -29,7 +29,14 @@ Every test begins with a fresh run of the configure script at the top
 of the SQLite source tree.
 }
 
-array set ::Configs {
+# Omit comments (text between # and \n) in a long multi-line string.
+#
+proc strip_comments {in} {
+  regsub -all {#[^\n]*\n} $in {} out
+  return $out
+}
+
+array set ::Configs [strip_comments {
   "Default" {
     -O2
     --disable-amalgamation --disable-shared
@@ -38,6 +45,20 @@ array set ::Configs {
     CC=clang -fsanitize=undefined
     -DSQLITE_ENABLE_STAT4
   }
+  "Have-Not" {
+    # The "Have-Not" configuration sets all possible -UHAVE_feature options
+    # in order to verify that the code works even on platforms that lack
+    # these support services.
+    -DHAVE_FDATASYNC=0
+    -DHAVE_GMTIME_R=0
+    -DHAVE_ISNAN=0
+    -DHAVE_LOCALTIME_R=0
+    -DHAVE_LOCALTIME_S=0
+    -DHAVE_MALLOC_USABLE_SIZE=0
+    -DHAVE_STRCHRNUL=0
+    -DHAVE_USLEEP=0
+    -DHAVE_UTIME=0
+  }
   "Unlock-Notify" {
     -O2
     -DSQLITE_ENABLE_UNLOCK_NOTIFY
@@ -166,15 +187,23 @@ array set ::Configs {
     -DSQLITE_ENABLE_FTS4
     -DSQLITE_ENABLE_RTREE
   }
+
+  # The next group of configurations are used only by the
+  # Failure-Detection platform.  They are all the same, but we need
+  # different names for them all so that they results appear in separate
+  # subdirectories.
+  #
   Fail0 {-O0}
   Fail2 {-O0}
   Fail3 {-O0}
-}
+  Fail4 {-O0}
+}]
 
-array set ::Platforms {
+array set ::Platforms [strip_comments {
   Linux-x86_64 {
     "Check-Symbols"           checksymbols
     "Debug-One"               "mptest test"
+    "Have-Not"                test
     "Secure-Delete"           test
     "Unlock-Notify"           "QUICKTEST_INCLUDE=notify2.test test"
     "Update-Delete-Limit"     test
@@ -189,6 +218,7 @@ array set ::Platforms {
   }
   Linux-i686 {
     "Devkit"                  test
+    "Have-Not"                test
     "Unlock-Notify"           "QUICKTEST_INCLUDE=notify2.test test"
     "Device-One"              test
     "Device-Two"              test
@@ -196,22 +226,31 @@ array set ::Platforms {
   }
   Darwin-i386 {
     "Locking-Style"           "mptest test"
+    "Have-Not"                test
     "OS-X"                    "threadtest fulltest"
   }
   Darwin-x86_64 {
     "Locking-Style"           "mptest test"
+    "Have-Not"                test
     "OS-X"                    "threadtest fulltest"
   }
   "Windows NT-intel" {
     "Default"                 "mptest fulltestonly"
+    "Have-Not"                test
   }
+
+  # The Failure-Detection platform runs various tests that deliberately
+  # fail.  This is used as a test of this script to verify that this script
+  # correctly identifies failures.
+  #
   Failure-Detection {
     Fail0     "TEST_FAILURE=0 test"
     Sanitize  "TEST_FAILURE=1 test"
     Fail2     "TEST_FAILURE=2 valgrindtest"
     Fail3     "TEST_FAILURE=3 valgrindtest"
+    Fail4     "TEST_FAILURE=4 test"
   }
-}
+}]
 
 
 # End of configuration section.
@@ -278,6 +317,9 @@ proc count_tests_and_errors {logfile rcVar errmsgVar} {
   if {!$seen} {
     set rc 1
     set errmsg "Test did not complete"
+    if {[file readable core]} {
+      append errmsg " - core file exists"
+    }
   }
 }
 
@@ -294,9 +336,9 @@ proc run_test_suite {name testtarget config} {
 
   regsub -all {#[^\n]*\n} $config \n config
   foreach arg $config {
-    if {[string match -D* $arg]} {
+    if {[regexp {^-[UD]} $arg]} {
       lappend opts $arg
-    } elseif {[string match CC=* $arg]} {
+    } elseif {[regexp {^[A-Z]+=} $arg]} {
       lappend testtarget $arg
     } elseif {[regexp {^--(enable|disable)-} $arg]} {
       lappend configOpts $arg
@@ -331,6 +373,7 @@ proc run_test_suite {name testtarget config} {
   trace_cmd file mkdir $dir
   trace_cmd cd $dir
   set errmsg {}
+  catch {file delete core}
   set rc [catch [configureCommand $configOpts]]
   if {!$rc} {
     set rc [catch [makeCommand $testtarget $cflags $opts]]