diff --git a/config.h.in b/config.h.in
index 1a1469ad77d2781e2d0713b230d060eb42f2e6c5..102972ca33eecf928cdefd100ca2d77a6c32000a 100644
--- a/config.h.in
+++ b/config.h.in
@@ -292,12 +292,18 @@
 /* The size of `long', as computed by sizeof. */
 #undef SIZEOF_LONG
 
+/* The size of `long long', as computed by sizeof. */
+#undef SIZEOF_LONG_LONG
+
 /* The size of `short', as computed by sizeof. */
 #undef SIZEOF_SHORT
 
 /* The size of `wchar_t', as computed by sizeof. */
 #undef SIZEOF_WCHAR_T
 
+/* The size of `__int64', as computed by sizeof. */
+#undef SIZEOF___INT64
+
 /* Define to 1 if you have the ANSI C header files. */
 #undef STDC_HEADERS
 
@@ -361,6 +367,9 @@
 /* An appropriate unsigned 32 bit integer type */
 #undef XERCES_U32BIT_INT
 
+/* An appropriate unsigned 64 bit integer type */
+#undef XERCES_U64BIT_INT
+
 /* Define to use the MacOS AtomicOp mgr */
 #undef XERCES_USE_ATOMICOPMGR_MACOS
 
diff --git a/configure b/configure
index 909cd9b64c53561d82881cd198ff35ad336e8bbc..449b5b72aec23e9a3292c62caa046b45eca07100 100755
--- a/configure
+++ b/configure
@@ -22908,6 +22908,816 @@ cat >>confdefs.h <<_ACEOF
 _ACEOF
 
 
+	{ echo "$as_me:$LINENO: checking for long long" >&5
+echo $ECHO_N "checking for long long... $ECHO_C" >&6; }
+if test "${ac_cv_type_long_long+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+typedef long long ac__type_new_;
+int
+main ()
+{
+if ((ac__type_new_ *) 0)
+  return 0;
+if (sizeof (ac__type_new_))
+  return 0;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_type_long_long=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_cv_type_long_long=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_type_long_long" >&5
+echo "${ECHO_T}$ac_cv_type_long_long" >&6; }
+
+# The cast to long int works around a bug in the HP C Compiler
+# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
+# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# This bug is HP SR number 8606223364.
+{ echo "$as_me:$LINENO: checking size of long long" >&5
+echo $ECHO_N "checking size of long long... $ECHO_C" >&6; }
+if test "${ac_cv_sizeof_long_long+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test "$cross_compiling" = yes; then
+  # Depending upon the size, compute the lo and hi bounds.
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+   typedef long long ac__type_sizeof_;
+int
+main ()
+{
+static int test_array [1 - 2 * !(((long int) (sizeof (ac__type_sizeof_))) >= 0)];
+test_array [0] = 0
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_lo=0 ac_mid=0
+  while :; do
+    cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+   typedef long long ac__type_sizeof_;
+int
+main ()
+{
+static int test_array [1 - 2 * !(((long int) (sizeof (ac__type_sizeof_))) <= $ac_mid)];
+test_array [0] = 0
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_hi=$ac_mid; break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_lo=`expr $ac_mid + 1`
+			if test $ac_lo -le $ac_mid; then
+			  ac_lo= ac_hi=
+			  break
+			fi
+			ac_mid=`expr 2 '*' $ac_mid + 1`
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  done
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+   typedef long long ac__type_sizeof_;
+int
+main ()
+{
+static int test_array [1 - 2 * !(((long int) (sizeof (ac__type_sizeof_))) < 0)];
+test_array [0] = 0
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_hi=-1 ac_mid=-1
+  while :; do
+    cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+   typedef long long ac__type_sizeof_;
+int
+main ()
+{
+static int test_array [1 - 2 * !(((long int) (sizeof (ac__type_sizeof_))) >= $ac_mid)];
+test_array [0] = 0
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_lo=$ac_mid; break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_hi=`expr '(' $ac_mid ')' - 1`
+			if test $ac_mid -le $ac_hi; then
+			  ac_lo= ac_hi=
+			  break
+			fi
+			ac_mid=`expr 2 '*' $ac_mid`
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  done
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_lo= ac_hi=
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+# Binary search between lo and hi bounds.
+while test "x$ac_lo" != "x$ac_hi"; do
+  ac_mid=`expr '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo`
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+   typedef long long ac__type_sizeof_;
+int
+main ()
+{
+static int test_array [1 - 2 * !(((long int) (sizeof (ac__type_sizeof_))) <= $ac_mid)];
+test_array [0] = 0
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_hi=$ac_mid
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_lo=`expr '(' $ac_mid ')' + 1`
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+done
+case $ac_lo in
+?*) ac_cv_sizeof_long_long=$ac_lo;;
+'') if test "$ac_cv_type_long_long" = yes; then
+     { { echo "$as_me:$LINENO: error: cannot compute sizeof (long long)
+See \`config.log' for more details." >&5
+echo "$as_me: error: cannot compute sizeof (long long)
+See \`config.log' for more details." >&2;}
+   { (exit 77); exit 77; }; }
+   else
+     ac_cv_sizeof_long_long=0
+   fi ;;
+esac
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+   typedef long long ac__type_sizeof_;
+static long int longval () { return (long int) (sizeof (ac__type_sizeof_)); }
+static unsigned long int ulongval () { return (long int) (sizeof (ac__type_sizeof_)); }
+#include <stdio.h>
+#include <stdlib.h>
+int
+main ()
+{
+
+  FILE *f = fopen ("conftest.val", "w");
+  if (! f)
+    return 1;
+  if (((long int) (sizeof (ac__type_sizeof_))) < 0)
+    {
+      long int i = longval ();
+      if (i != ((long int) (sizeof (ac__type_sizeof_))))
+	return 1;
+      fprintf (f, "%ld\n", i);
+    }
+  else
+    {
+      unsigned long int i = ulongval ();
+      if (i != ((long int) (sizeof (ac__type_sizeof_))))
+	return 1;
+      fprintf (f, "%lu\n", i);
+    }
+  return ferror (f) || fclose (f) != 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_sizeof_long_long=`cat conftest.val`
+else
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+( exit $ac_status )
+if test "$ac_cv_type_long_long" = yes; then
+     { { echo "$as_me:$LINENO: error: cannot compute sizeof (long long)
+See \`config.log' for more details." >&5
+echo "$as_me: error: cannot compute sizeof (long long)
+See \`config.log' for more details." >&2;}
+   { (exit 77); exit 77; }; }
+   else
+     ac_cv_sizeof_long_long=0
+   fi
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f conftest.val
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_sizeof_long_long" >&5
+echo "${ECHO_T}$ac_cv_sizeof_long_long" >&6; }
+
+
+
+cat >>confdefs.h <<_ACEOF
+#define SIZEOF_LONG_LONG $ac_cv_sizeof_long_long
+_ACEOF
+
+
+	{ echo "$as_me:$LINENO: checking for __int64" >&5
+echo $ECHO_N "checking for __int64... $ECHO_C" >&6; }
+if test "${ac_cv_type___int64+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+typedef __int64 ac__type_new_;
+int
+main ()
+{
+if ((ac__type_new_ *) 0)
+  return 0;
+if (sizeof (ac__type_new_))
+  return 0;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_type___int64=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_cv_type___int64=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_type___int64" >&5
+echo "${ECHO_T}$ac_cv_type___int64" >&6; }
+
+# The cast to long int works around a bug in the HP C Compiler
+# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
+# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# This bug is HP SR number 8606223364.
+{ echo "$as_me:$LINENO: checking size of __int64" >&5
+echo $ECHO_N "checking size of __int64... $ECHO_C" >&6; }
+if test "${ac_cv_sizeof___int64+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test "$cross_compiling" = yes; then
+  # Depending upon the size, compute the lo and hi bounds.
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+   typedef __int64 ac__type_sizeof_;
+int
+main ()
+{
+static int test_array [1 - 2 * !(((long int) (sizeof (ac__type_sizeof_))) >= 0)];
+test_array [0] = 0
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_lo=0 ac_mid=0
+  while :; do
+    cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+   typedef __int64 ac__type_sizeof_;
+int
+main ()
+{
+static int test_array [1 - 2 * !(((long int) (sizeof (ac__type_sizeof_))) <= $ac_mid)];
+test_array [0] = 0
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_hi=$ac_mid; break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_lo=`expr $ac_mid + 1`
+			if test $ac_lo -le $ac_mid; then
+			  ac_lo= ac_hi=
+			  break
+			fi
+			ac_mid=`expr 2 '*' $ac_mid + 1`
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  done
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+   typedef __int64 ac__type_sizeof_;
+int
+main ()
+{
+static int test_array [1 - 2 * !(((long int) (sizeof (ac__type_sizeof_))) < 0)];
+test_array [0] = 0
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_hi=-1 ac_mid=-1
+  while :; do
+    cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+   typedef __int64 ac__type_sizeof_;
+int
+main ()
+{
+static int test_array [1 - 2 * !(((long int) (sizeof (ac__type_sizeof_))) >= $ac_mid)];
+test_array [0] = 0
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_lo=$ac_mid; break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_hi=`expr '(' $ac_mid ')' - 1`
+			if test $ac_mid -le $ac_hi; then
+			  ac_lo= ac_hi=
+			  break
+			fi
+			ac_mid=`expr 2 '*' $ac_mid`
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  done
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_lo= ac_hi=
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+# Binary search between lo and hi bounds.
+while test "x$ac_lo" != "x$ac_hi"; do
+  ac_mid=`expr '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo`
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+   typedef __int64 ac__type_sizeof_;
+int
+main ()
+{
+static int test_array [1 - 2 * !(((long int) (sizeof (ac__type_sizeof_))) <= $ac_mid)];
+test_array [0] = 0
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_hi=$ac_mid
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_lo=`expr '(' $ac_mid ')' + 1`
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+done
+case $ac_lo in
+?*) ac_cv_sizeof___int64=$ac_lo;;
+'') if test "$ac_cv_type___int64" = yes; then
+     { { echo "$as_me:$LINENO: error: cannot compute sizeof (__int64)
+See \`config.log' for more details." >&5
+echo "$as_me: error: cannot compute sizeof (__int64)
+See \`config.log' for more details." >&2;}
+   { (exit 77); exit 77; }; }
+   else
+     ac_cv_sizeof___int64=0
+   fi ;;
+esac
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+   typedef __int64 ac__type_sizeof_;
+static long int longval () { return (long int) (sizeof (ac__type_sizeof_)); }
+static unsigned long int ulongval () { return (long int) (sizeof (ac__type_sizeof_)); }
+#include <stdio.h>
+#include <stdlib.h>
+int
+main ()
+{
+
+  FILE *f = fopen ("conftest.val", "w");
+  if (! f)
+    return 1;
+  if (((long int) (sizeof (ac__type_sizeof_))) < 0)
+    {
+      long int i = longval ();
+      if (i != ((long int) (sizeof (ac__type_sizeof_))))
+	return 1;
+      fprintf (f, "%ld\n", i);
+    }
+  else
+    {
+      unsigned long int i = ulongval ();
+      if (i != ((long int) (sizeof (ac__type_sizeof_))))
+	return 1;
+      fprintf (f, "%lu\n", i);
+    }
+  return ferror (f) || fclose (f) != 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_sizeof___int64=`cat conftest.val`
+else
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+( exit $ac_status )
+if test "$ac_cv_type___int64" = yes; then
+     { { echo "$as_me:$LINENO: error: cannot compute sizeof (__int64)
+See \`config.log' for more details." >&5
+echo "$as_me: error: cannot compute sizeof (__int64)
+See \`config.log' for more details." >&2;}
+   { (exit 77); exit 77; }; }
+   else
+     ac_cv_sizeof___int64=0
+   fi
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f conftest.val
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_sizeof___int64" >&5
+echo "${ECHO_T}$ac_cv_sizeof___int64" >&6; }
+
+
+
+cat >>confdefs.h <<_ACEOF
+#define SIZEOF___INT64 $ac_cv_sizeof___int64
+_ACEOF
+
+
 	{ echo "$as_me:$LINENO: checking for int16_t" >&5
 echo $ECHO_N "checking for int16_t... $ECHO_C" >&6; }
 if test "${ac_cv_type_int16_t+set}" = set; then
@@ -23124,6 +23934,60 @@ fi
 { echo "$as_me:$LINENO: result: $ac_cv_type_uint32_t" >&5
 echo "${ECHO_T}$ac_cv_type_uint32_t" >&6; }
 
+	{ echo "$as_me:$LINENO: checking for uint64_t" >&5
+echo $ECHO_N "checking for uint64_t... $ECHO_C" >&6; }
+if test "${ac_cv_type_uint64_t+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+typedef uint64_t ac__type_new_;
+int
+main ()
+{
+if ((ac__type_new_ *) 0)
+  return 0;
+if (sizeof (ac__type_new_))
+  return 0;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_type_uint64_t=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_cv_type_uint64_t=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_type_uint64_t" >&5
+echo "${ECHO_T}$ac_cv_type_uint64_t" >&6; }
+
 
 	#
 	# Select a signed 16 bit integer type
@@ -23254,6 +24118,46 @@ fi
 { echo "$as_me:$LINENO: result: $xerces_cv_type_u32bit_int" >&5
 echo "${ECHO_T}$xerces_cv_type_u32bit_int" >&6; }
 
+	#
+	# Select an unsigned 64 bit integer type
+	#
+	{ echo "$as_me:$LINENO: checking for an appropriate unsigned 64 bit integer type" >&5
+echo $ECHO_N "checking for an appropriate unsigned 64 bit integer type... $ECHO_C" >&6; }
+if test "${xerces_cv_type_u64bit_int+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+		if test x$ac_cv_header_inttypes_h = xyes && test x$ac_cv_type_uint64_t = xyes; then
+  xerces_cv_type_u64bit_int=uint64_t
+else
+
+				case $ac_cv_sizeof_int in
+				8*) xerces_cv_type_u64bit_int="unsigned int";;
+				*)
+					case $ac_cv_sizeof_long in
+					8*) xerces_cv_type_u64bit_int="unsigned long";;
+					*)
+						case $ac_cv_sizeof_long_long in
+						8*) xerces_cv_type_u64bit_int="unsigned long long";;
+						*)
+							case $ac_cv_sizeof___int64 in
+							8*) xerces_cv_type_u64bit_int="unsigned __int64";;
+							*)  xerces_cv_type_u64bit_int=$xerces_cv_type_u32bit_int;;
+							esac
+							;;
+						esac
+						;;
+					esac
+					;;
+				esac
+
+fi
+
+
+fi
+{ echo "$as_me:$LINENO: result: $xerces_cv_type_u64bit_int" >&5
+echo "${ECHO_T}$xerces_cv_type_u64bit_int" >&6; }
+
 
 cat >>confdefs.h <<_ACEOF
 #define XERCES_S16BIT_INT $xerces_cv_type_s16bit_int
@@ -23275,6 +24179,11 @@ cat >>confdefs.h <<_ACEOF
 _ACEOF
 
 
+cat >>confdefs.h <<_ACEOF
+#define XERCES_U64BIT_INT $xerces_cv_type_u64bit_int
+_ACEOF
+
+
 
 
 { echo "$as_me:$LINENO: checking whether the compiler recognizes bool as a built-in type" >&5
diff --git a/src/xercesc/util/Xerces_autoconf_config.borland.hpp b/src/xercesc/util/Xerces_autoconf_config.borland.hpp
index fa1af13088a07142758e8d166d45fcaefc79076e..33bc445f87be9cb6bb12ef63ccdb0abc5b151a79 100644
--- a/src/xercesc/util/Xerces_autoconf_config.borland.hpp
+++ b/src/xercesc/util/Xerces_autoconf_config.borland.hpp
@@ -50,6 +50,8 @@
 #define XERCES_U16BIT_INT   unsigned short
 #define XERCES_S32BIT_INT   INT32
 #define XERCES_U32BIT_INT   UINT32
+// REVISIT: double check if Borland supports 64 bit integers
+#define XERCES_U64BIT_INT   UINT32
 
 #define XERCES_XMLCH_T      wchar_t
 
@@ -99,7 +101,7 @@ typedef XERCES_S32BIT_INT			XMLInt32;
 // ---------------------------------------------------------------------------
 //  XMLFilePos is the type used to represent a file position.
 // ---------------------------------------------------------------------------
-typedef XERCES_U32BIT_INT			XMLFilePos;
+typedef XERCES_U64BIT_INT			XMLFilePos;
 
 
 // ---------------------------------------------------------------------------
diff --git a/src/xercesc/util/Xerces_autoconf_config.hpp.in b/src/xercesc/util/Xerces_autoconf_config.hpp.in
index 5b05904bca07bcc341f80888fa57ab835cbf9f21..5d420bcb3d2dd9bbee117470b1c6043d368779a7 100644
--- a/src/xercesc/util/Xerces_autoconf_config.hpp.in
+++ b/src/xercesc/util/Xerces_autoconf_config.hpp.in
@@ -53,6 +53,7 @@
 #undef XERCES_S32BIT_INT
 #undef XERCES_U16BIT_INT
 #undef XERCES_U32BIT_INT
+#undef XERCES_U64BIT_INT
 #undef XERCES_XMLCH_T
 #undef XERCES_SIZE_T
 #undef XERCES_SSIZE_T
@@ -104,7 +105,7 @@ typedef XERCES_S32BIT_INT			XMLInt32;
 // ---------------------------------------------------------------------------
 //  XMLFilePos is the type used to represent a file position.
 // ---------------------------------------------------------------------------
-typedef XERCES_U32BIT_INT			XMLFilePos;
+typedef XERCES_U64BIT_INT			XMLFilePos;
 
 
 // ---------------------------------------------------------------------------
diff --git a/src/xercesc/util/Xerces_autoconf_config.msvc.hpp b/src/xercesc/util/Xerces_autoconf_config.msvc.hpp
index e03839fe3239c731a49f686bf99cdd376b375eda..74242e6b14401153808fa4b7d1a6c8182e4a1fd4 100644
--- a/src/xercesc/util/Xerces_autoconf_config.msvc.hpp
+++ b/src/xercesc/util/Xerces_autoconf_config.msvc.hpp
@@ -54,6 +54,7 @@
 #define XERCES_U16BIT_INT   unsigned short
 #define XERCES_S32BIT_INT   INT32
 #define XERCES_U32BIT_INT   UINT32
+#define XERCES_U64BIT_INT   UINT64
 
 #ifdef _NATIVE_WCHAR_T_DEFINED 
 #define XERCES_XMLCH_T      wchar_t
@@ -106,7 +107,7 @@ typedef XERCES_S32BIT_INT			XMLInt32;
 // ---------------------------------------------------------------------------
 //  XMLFilePos is the type used to represent a file position.
 // ---------------------------------------------------------------------------
-typedef XERCES_U32BIT_INT			XMLFilePos;
+typedef XERCES_U64BIT_INT			XMLFilePos;
 
 
 // ---------------------------------------------------------------------------