Import SQLite 3.7.6.3.

third_party/sqlite/src/configure.ac

 #
 # The build process allows for using a cross-compiler.  But the default
 # action is to target the same platform that we are running on.  The
 # configure script needs to discover the following properties of the 
 # build and target systems:
 #
 #    srcdir
 #
 #        The is the name of the directory that contains the
 #        "configure" shell script.  All source files are
@@ skipping 121 matching lines @@
 #########
 # By default, we use the amalgamation (this may be changed below...)
 #
 USE_AMALGAMATION=1
 
 #########
 # See whether we can run specific tclsh versions known to work well;
 # if not, then we fall back to plain tclsh.
 # TODO: try other versions before falling back?
 # 
-AC_CHECK_PROGS(TCLSH_CMD, [tclsh8.4 tclsh], none)
+AC_CHECK_PROGS(TCLSH_CMD, [tclsh8.5 tclsh], none)
 if test "$TCLSH_CMD" = "none"; then
   # If we can't find a local tclsh, then building the amalgamation will fail.
   # We act as though --disable-amalgamation has been used.
   echo "Warning: can't find tclsh - defaulting to non-amalgamation build."
   USE_AMALGAMATION=0
   TCLSH_CMD="tclsh"
 fi
 AC_SUBST(TCLSH_CMD)
 
 AC_ARG_VAR([TCLLIBDIR], [Where to install tcl plugin])
@@ skipping 109 matching lines @@
 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 set threadsOverrideEachOthersLocks variable to be 1 (true) by
-# default. Normally, a test at runtime is performed to determine the
-# appropriate value of this variable. Use this option only if you're sure that
-# threads can safely override each others locks in all runtime situations.
-#
-AC_ARG_ENABLE(threads-override-locks, 
-AC_HELP_STRING([--enable-threads-override-locks],[Threads can override each others locks]),,enable_threads_override_locks=no)
-AC_MSG_CHECKING([whether threads can override each others locks])
-if test "$enable_threads_override_locks" = "no"; then
-  THREADSOVERRIDELOCKS='-1'
-  AC_MSG_RESULT([no])
-else
-  THREADSOVERRIDELOCKS='1'
-  AC_MSG_RESULT([yes])
-fi
-AC_SUBST(THREADSOVERRIDELOCKS)
-
-##########
 # Do we want to support release
 #
 AC_ARG_ENABLE(releasemode, 
 AC_HELP_STRING([--enable-releasemode],[Support libtool link to release mode]),,enable_releasemode=no)
 AC_MSG_CHECKING([whether to support shared library linked as release mode or not])
 if test "$enable_releasemode" = "no"; then
   ALLOWRELEASE=""
   AC_MSG_RESULT([no])
 else
   ALLOWRELEASE="-release `cat $srcdir/VERSION`"
@@ skipping 410 matching lines @@
 AC_CONFIG_HEADERS(config.h)
 
 #########
 # Generate the output files.
 #
 AC_SUBST(BUILD_CFLAGS)
 AC_OUTPUT([
 Makefile
 sqlite3.pc
 ])