Update expat to 2.2.6

Update contrib/expat by merging from the vendor branch.

Update expat_config.h manually, using
    make -C /usr/ports/textproc/expat2 configure
as a baseline.

MFC after:	1 month
Relnotes:	yes
Security:	yes; see contrib/expat/Changes since 2.2.0
Sponsored by:	Dell EMC Isilon

17 files changed, 1735 insertions, 175 deletions

diff --git a/contrib/expat/xmlwf/Makefile.am b/contrib/expat/xmlwf/Makefile.am
new file mode 100644
index 000000000000..ff460902caa0
--- /dev/null
+++ b/contrib/expat/xmlwf/Makefile.am
@@ -0,0 +1,61 @@
+#
+#                          __  __            _
+#                       ___\ \/ /_ __   __ _| |_
+#                      / _ \\  /| '_ \ / _` | __|
+#                     |  __//  \| |_) | (_| | |_
+#                      \___/_/\_\ .__/ \__,_|\__|
+#                               |_| XML parser
+#
+# Copyright (c) 2017 Expat development team
+# Licensed under the MIT license:
+#
+# Permission is  hereby granted,  free of charge,  to any  person obtaining
+# a  copy  of  this  software   and  associated  documentation  files  (the
+# "Software"),  to  deal in  the  Software  without restriction,  including
+# without  limitation the  rights  to use,  copy,  modify, merge,  publish,
+# distribute, sublicense, and/or sell copies of the Software, and to permit
+# persons  to whom  the Software  is  furnished to  do so,  subject to  the
+# following conditions:
+#
+# The above copyright  notice and this permission notice  shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
+# EXPRESS  OR IMPLIED,  INCLUDING  BUT  NOT LIMITED  TO  THE WARRANTIES  OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+# NO EVENT SHALL THE AUTHORS OR  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+# DAMAGES OR  OTHER LIABILITY, WHETHER  IN AN  ACTION OF CONTRACT,  TORT OR
+# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+# USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+bin_PROGRAMS = xmlwf
+
+xmlwf_LDADD = ../lib/libexpat.la
+xmlwf_SOURCES = \
+    xmlwf.c \
+    xmlfile.c \
+    codepage.c \
+    @FILEMAP@.c
+
+xmlwf_CPPFLAGS = -I$(srcdir)/../lib
+
+if MINGW
+if UNICODE
+xmlwf_CPPFLAGS += -mwindows
+xmlwf_LDFLAGS = -municode
+endif
+endif
+
+EXTRA_DIST = \
+    codepage.h \
+    ct.c \
+    filemap.h \
+    readfilemap.c \
+    unixfilemap.c \
+    win32filemap.c \
+    xmlfile.h \
+    xmlmime.c \
+    xmlmime.h \
+    xmltchar.h \
+    xmlurl.h \
+    xmlwin32url.cxx
diff --git a/contrib/expat/xmlwf/Makefile.in b/contrib/expat/xmlwf/Makefile.in
new file mode 100644
index 000000000000..152bbe97eec3
--- /dev/null
+++ b/contrib/expat/xmlwf/Makefile.in
@@ -0,0 +1,753 @@
+# Makefile.in generated by automake 1.15.1 from Makefile.am.
+# @configure_input@
+
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+# with or without modifications, as long as this notice is preserved.
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+#                      \___/_/\_\ .__/ \__,_|\__|
+#                               |_| XML parser
+#
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+@am__fastdepCC_TRUE@	$(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(xmlwf_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT xmlwf-codepage.obj -MD -MP -MF $(DEPDIR)/xmlwf-codepage.Tpo -c -o xmlwf-codepage.obj `if test -f 'codepage.c'; then $(CYGPATH_W) 'codepage.c'; else $(CYGPATH_W) '$(srcdir)/codepage.c'; fi`
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+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
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+TAGS: tags
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+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
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+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
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+
+distdir: $(DISTFILES)
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+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
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+check: check-am
+all-am: Makefile $(PROGRAMS)
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+	for dir in "$(DESTDIR)$(bindir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
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+	      install; \
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
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+	fi
+mostlyclean-generic:
+
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+
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+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
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+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
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+	distclean-tags
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+	ctags ctags-am distclean distclean-compile distclean-generic \
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+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/contrib/expat/xmlwf/codepage.c b/contrib/expat/xmlwf/codepage.c
index 91bd15e96f8b..1a0487ff91d2 100644
--- a/contrib/expat/xmlwf/codepage.c
+++ b/contrib/expat/xmlwf/codepage.c
@@ -1,11 +1,39 @@
-/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
-   See the file COPYING for copying permission.
+/*
+                            __  __            _
+                         ___\ \/ /_ __   __ _| |_
+                        / _ \\  /| '_ \ / _` | __|
+                       |  __//  \| |_) | (_| | |_
+                        \___/_/\_\ .__/ \__,_|\__|
+                                 |_| XML parser
+
+   Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
+   Copyright (c) 2000-2017 Expat development team
+   Licensed under the MIT license:
+
+   Permission is  hereby granted,  free of charge,  to any  person obtaining
+   a  copy  of  this  software   and  associated  documentation  files  (the
+   "Software"),  to  deal in  the  Software  without restriction,  including
+   without  limitation the  rights  to use,  copy,  modify, merge,  publish,
+   distribute, sublicense, and/or sell copies of the Software, and to permit
+   persons  to whom  the Software  is  furnished to  do so,  subject to  the
+   following conditions:
+
+   The above copyright  notice and this permission notice  shall be included
+   in all copies or substantial portions of the Software.
+
+   THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
+   EXPRESS  OR IMPLIED,  INCLUDING  BUT  NOT LIMITED  TO  THE WARRANTIES  OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+   NO EVENT SHALL THE AUTHORS OR  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+   DAMAGES OR  OTHER LIABILITY, WHETHER  IN AN  ACTION OF CONTRACT,  TORT OR
+   OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+   USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
 #include "codepage.h"
 #include "internal.h"  /* for UNUSED_P only */
 
-#if (defined(WIN32) || (defined(__WATCOMC__) && defined(__NT__)))
+#if defined(_WIN32)
 #define STRICT 1
 #define WIN32_LEAN_AND_MEAN 1
 
@@ -52,7 +80,7 @@ codepageConvert(int cp, const char *p)
   return -1;
 }
 
-#else /* not WIN32 */
+#else /* not _WIN32 */
 
 int
 codepageMap(int UNUSED_P(cp), int *UNUSED_P(map))
@@ -66,4 +94,4 @@ codepageConvert(int UNUSED_P(cp), const char *UNUSED_P(p))
   return -1;
 }
 
-#endif /* not WIN32 */
+#endif /* not _WIN32 */
diff --git a/contrib/expat/xmlwf/codepage.h b/contrib/expat/xmlwf/codepage.h
index 6a4df68883e4..1b75d58365f4 100644
--- a/contrib/expat/xmlwf/codepage.h
+++ b/contrib/expat/xmlwf/codepage.h
@@ -1,5 +1,33 @@
-/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
-   See the file COPYING for copying permission.
+/*
+                            __  __            _
+                         ___\ \/ /_ __   __ _| |_
+                        / _ \\  /| '_ \ / _` | __|
+                       |  __//  \| |_) | (_| | |_
+                        \___/_/\_\ .__/ \__,_|\__|
+                                 |_| XML parser
+
+   Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
+   Copyright (c) 2000-2017 Expat development team
+   Licensed under the MIT license:
+
+   Permission is  hereby granted,  free of charge,  to any  person obtaining
+   a  copy  of  this  software   and  associated  documentation  files  (the
+   "Software"),  to  deal in  the  Software  without restriction,  including
+   without  limitation the  rights  to use,  copy,  modify, merge,  publish,
+   distribute, sublicense, and/or sell copies of the Software, and to permit
+   persons  to whom  the Software  is  furnished to  do so,  subject to  the
+   following conditions:
+
+   The above copyright  notice and this permission notice  shall be included
+   in all copies or substantial portions of the Software.
+
+   THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
+   EXPRESS  OR IMPLIED,  INCLUDING  BUT  NOT LIMITED  TO  THE WARRANTIES  OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+   NO EVENT SHALL THE AUTHORS OR  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+   DAMAGES OR  OTHER LIABILITY, WHETHER  IN AN  ACTION OF CONTRACT,  TORT OR
+   OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+   USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
 int codepageMap(int cp, int *map);
diff --git a/contrib/expat/xmlwf/ct.c b/contrib/expat/xmlwf/ct.c
index 95903a34500a..dd42f5ec98d8 100644
--- a/contrib/expat/xmlwf/ct.c
+++ b/contrib/expat/xmlwf/ct.c
@@ -1,3 +1,35 @@
+/*
+                            __  __            _
+                         ___\ \/ /_ __   __ _| |_
+                        / _ \\  /| '_ \ / _` | __|
+                       |  __//  \| |_) | (_| | |_
+                        \___/_/\_\ .__/ \__,_|\__|
+                                 |_| XML parser
+
+   Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
+   Copyright (c) 2000-2017 Expat development team
+   Licensed under the MIT license:
+
+   Permission is  hereby granted,  free of charge,  to any  person obtaining
+   a  copy  of  this  software   and  associated  documentation  files  (the
+   "Software"),  to  deal in  the  Software  without restriction,  including
+   without  limitation the  rights  to use,  copy,  modify, merge,  publish,
+   distribute, sublicense, and/or sell copies of the Software, and to permit
+   persons  to whom  the Software  is  furnished to  do so,  subject to  the
+   following conditions:
+
+   The above copyright  notice and this permission notice  shall be included
+   in all copies or substantial portions of the Software.
+
+   THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
+   EXPRESS  OR IMPLIED,  INCLUDING  BUT  NOT LIMITED  TO  THE WARRANTIES  OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+   NO EVENT SHALL THE AUTHORS OR  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+   DAMAGES OR  OTHER LIABILITY, WHETHER  IN AN  ACTION OF CONTRACT,  TORT OR
+   OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+   USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
 #define CHARSET_MAX 41
 
 static const char *
diff --git a/contrib/expat/xmlwf/filemap.h b/contrib/expat/xmlwf/filemap.h
index 814edec2528c..5487a4ebe50b 100644
--- a/contrib/expat/xmlwf/filemap.h
+++ b/contrib/expat/xmlwf/filemap.h
@@ -1,9 +1,49 @@
-/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
-   See the file COPYING for copying permission.
+/*
+                            __  __            _
+                         ___\ \/ /_ __   __ _| |_
+                        / _ \\  /| '_ \ / _` | __|
+                       |  __//  \| |_) | (_| | |_
+                        \___/_/\_\ .__/ \__,_|\__|
+                                 |_| XML parser
+
+   Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
+   Copyright (c) 2000-2017 Expat development team
+   Licensed under the MIT license:
+
+   Permission is  hereby granted,  free of charge,  to any  person obtaining
+   a  copy  of  this  software   and  associated  documentation  files  (the
+   "Software"),  to  deal in  the  Software  without restriction,  including
+   without  limitation the  rights  to use,  copy,  modify, merge,  publish,
+   distribute, sublicense, and/or sell copies of the Software, and to permit
+   persons  to whom  the Software  is  furnished to  do so,  subject to  the
+   following conditions:
+
+   The above copyright  notice and this permission notice  shall be included
+   in all copies or substantial portions of the Software.
+
+   THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
+   EXPRESS  OR IMPLIED,  INCLUDING  BUT  NOT LIMITED  TO  THE WARRANTIES  OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+   NO EVENT SHALL THE AUTHORS OR  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+   DAMAGES OR  OTHER LIABILITY, WHETHER  IN AN  ACTION OF CONTRACT,  TORT OR
+   OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+   USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
+#include <limits.h>  /* INT_MAX */
 #include <stddef.h>
 
+
+/* The following limit (for XML_Parse's int len) derives from
+ * this loop in xmparse.c:
+ *
+ *    do {
+ *      bufferSize = (int) (2U * (unsigned) bufferSize);
+ *    } while (bufferSize < neededSize && bufferSize > 0);
+ */
+#define XML_MAX_CHUNK_LEN  (INT_MAX / 2 + 1)
+
+
 #ifdef XML_UNICODE
 int filemap(const wchar_t *name,
             void (*processor)(const void *, size_t,
diff --git a/contrib/expat/xmlwf/readfilemap.c b/contrib/expat/xmlwf/readfilemap.c
index d816b263aae1..4c4780bde0e3 100644
--- a/contrib/expat/xmlwf/readfilemap.c
+++ b/contrib/expat/xmlwf/readfilemap.c
@@ -1,5 +1,33 @@
-/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
-   See the file COPYING for copying permission.
+/*
+                            __  __            _
+                         ___\ \/ /_ __   __ _| |_
+                        / _ \\  /| '_ \ / _` | __|
+                       |  __//  \| |_) | (_| | |_
+                        \___/_/\_\ .__/ \__,_|\__|
+                                 |_| XML parser
+
+   Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
+   Copyright (c) 2000-2017 Expat development team
+   Licensed under the MIT license:
+
+   Permission is  hereby granted,  free of charge,  to any  person obtaining
+   a  copy  of  this  software   and  associated  documentation  files  (the
+   "Software"),  to  deal in  the  Software  without restriction,  including
+   without  limitation the  rights  to use,  copy,  modify, merge,  publish,
+   distribute, sublicense, and/or sell copies of the Software, and to permit
+   persons  to whom  the Software  is  furnished to  do so,  subject to  the
+   following conditions:
+
+   The above copyright  notice and this permission notice  shall be included
+   in all copies or substantial portions of the Software.
+
+   THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
+   EXPRESS  OR IMPLIED,  INCLUDING  BUT  NOT LIMITED  TO  THE WARRANTIES  OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+   NO EVENT SHALL THE AUTHORS OR  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+   DAMAGES OR  OTHER LIABILITY, WHETHER  IN AN  ACTION OF CONTRACT,  TORT OR
+   OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+   USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
 #include <sys/types.h>
@@ -9,64 +37,76 @@
 #include <stdio.h>
 
 /* Functions close(2) and read(2) */
-#ifdef __WATCOMC__
-#ifndef __LINUX__
-#include <io.h>
-#else
-#include <unistd.h>
+#if !defined(_WIN32) && !defined(_WIN64)
+# include <unistd.h>
 #endif
-#else
-# if !defined(WIN32) && !defined(_WIN32) && !defined(_WIN64)
-#  include <unistd.h>
-# endif
+
+/* Function "read": */
+#if defined(_MSC_VER)
+# include <io.h>
+  /* https://msdn.microsoft.com/en-us/library/wyssk1bs(v=vs.100).aspx */
+# define _EXPAT_read          _read
+# define _EXPAT_read_count_t  int
+# define _EXPAT_read_req_t    unsigned int
+#else  /* POSIX */
+  /* http://pubs.opengroup.org/onlinepubs/009695399/functions/read.html */
+# define _EXPAT_read          read
+# define _EXPAT_read_count_t  ssize_t
+# define _EXPAT_read_req_t    size_t
 #endif
 
 #ifndef S_ISREG
-#ifndef S_IFREG
-#define S_IFREG _S_IFREG
-#endif
-#ifndef S_IFMT
-#define S_IFMT _S_IFMT
-#endif
-#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
+# ifndef S_IFREG
+#  define S_IFREG _S_IFREG
+# endif
+# ifndef S_IFMT
+#  define S_IFMT _S_IFMT
+# endif
+# define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
 #endif /* not S_ISREG */
 
 #ifndef O_BINARY
-#ifdef _O_BINARY
-#define O_BINARY _O_BINARY
-#else
-#define O_BINARY 0
-#endif
+# ifdef _O_BINARY
+#  define O_BINARY _O_BINARY
+# else
+#  define O_BINARY 0
+# endif
 #endif
 
+#include "xmltchar.h"
 #include "filemap.h"
 
 int
-filemap(const char *name,
-        void (*processor)(const void *, size_t, const char *, void *arg),
+filemap(const tchar *name,
+        void (*processor)(const void *, size_t, const tchar *, void *arg),
         void *arg)
 {
   size_t nbytes;
   int fd;
-  int n;
+  _EXPAT_read_count_t n;
   struct stat sb;
   void *p;
 
-  fd = open(name, O_RDONLY|O_BINARY);
+  fd = topen(name, O_RDONLY|O_BINARY);
   if (fd < 0) {
-    perror(name);
+    tperror(name);
     return 0;
   }
   if (fstat(fd, &sb) < 0) {
-    perror(name);
+    tperror(name);
     close(fd);
     return 0;
   }
   if (!S_ISREG(sb.st_mode)) {
-    fprintf(stderr, "%s: not a regular file\n", name);
+    ftprintf(stderr, T("%s: not a regular file\n"), name);
     close(fd);
     return 0;
   }
+  if (sb.st_size > XML_MAX_CHUNK_LEN) {
+    close(fd);
+    return 2;  /* Cannot be passed to XML_Parse in one go */
+  }
+
   nbytes = sb.st_size;
   /* malloc will return NULL with nbytes == 0, handle files with size 0 */
   if (nbytes == 0) {
@@ -77,19 +117,19 @@ filemap(const char *name,
   }
   p = malloc(nbytes);
   if (!p) {
-    fprintf(stderr, "%s: out of memory\n", name);
+    ftprintf(stderr, T("%s: out of memory\n"), name);
     close(fd);
     return 0;
   }
-  n = read(fd, p, nbytes);
+  n = _EXPAT_read(fd, p, (_EXPAT_read_req_t)nbytes);
   if (n < 0) {
-    perror(name);
+    tperror(name);
     free(p);
     close(fd);
     return 0;
   }
-  if (n != nbytes) {
-    fprintf(stderr, "%s: read unexpected number of bytes\n", name);
+  if (n != (_EXPAT_read_count_t)nbytes) {
+    ftprintf(stderr, T("%s: read unexpected number of bytes\n"), name);
     free(p);
     close(fd);
     return 0;
diff --git a/contrib/expat/xmlwf/unixfilemap.c b/contrib/expat/xmlwf/unixfilemap.c
index e13299da05fc..4ab757c2ab9c 100644
--- a/contrib/expat/xmlwf/unixfilemap.c
+++ b/contrib/expat/xmlwf/unixfilemap.c
@@ -1,5 +1,33 @@
-/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
-   See the file COPYING for copying permission.
+/*
+                            __  __            _
+                         ___\ \/ /_ __   __ _| |_
+                        / _ \\  /| '_ \ / _` | __|
+                       |  __//  \| |_) | (_| | |_
+                        \___/_/\_\ .__/ \__,_|\__|
+                                 |_| XML parser
+
+   Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
+   Copyright (c) 2000-2017 Expat development team
+   Licensed under the MIT license:
+
+   Permission is  hereby granted,  free of charge,  to any  person obtaining
+   a  copy  of  this  software   and  associated  documentation  files  (the
+   "Software"),  to  deal in  the  Software  without restriction,  including
+   without  limitation the  rights  to use,  copy,  modify, merge,  publish,
+   distribute, sublicense, and/or sell copies of the Software, and to permit
+   persons  to whom  the Software  is  furnished to  do so,  subject to  the
+   following conditions:
+
+   The above copyright  notice and this permission notice  shall be included
+   in all copies or substantial portions of the Software.
+
+   THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
+   EXPRESS  OR IMPLIED,  INCLUDING  BUT  NOT LIMITED  TO  THE WARRANTIES  OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+   NO EVENT SHALL THE AUTHORS OR  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+   DAMAGES OR  OTHER LIABILITY, WHETHER  IN AN  ACTION OF CONTRACT,  TORT OR
+   OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+   USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
 #include <sys/types.h>
@@ -15,11 +43,18 @@
 #define MAP_FILE 0
 #endif
 
+#include "xmltchar.h"
 #include "filemap.h"
 
+#ifdef XML_UNICODE_WCHAR_T
+# define XML_FMT_STR "ls"
+#else
+# define XML_FMT_STR "s"
+#endif
+
 int
-filemap(const char *name,
-        void (*processor)(const void *, size_t, const char *, void *arg),
+filemap(const tchar *name,
+        void (*processor)(const void *, size_t, const tchar *, void *arg),
         void *arg)
 {
   int fd;
@@ -27,21 +62,25 @@ filemap(const char *name,
   struct stat sb;
   void *p;
 
-  fd = open(name, O_RDONLY);
+  fd = topen(name, O_RDONLY);
   if (fd < 0) {
-    perror(name);
+    tperror(name);
     return 0;
   }
   if (fstat(fd, &sb) < 0) {
-    perror(name);
+    tperror(name);
     close(fd);
     return 0;
   }
   if (!S_ISREG(sb.st_mode)) {
     close(fd);
-    fprintf(stderr, "%s: not a regular file\n", name);
+    fprintf(stderr, "%" XML_FMT_STR ": not a regular file\n", name);
     return 0;
   }
+  if (sb.st_size > XML_MAX_CHUNK_LEN) {
+    close(fd);
+    return 2;  /* Cannot be passed to XML_Parse in one go */
+  }
 
   nbytes = sb.st_size;
   /* mmap fails for zero length files */
@@ -54,7 +93,7 @@ filemap(const char *name,
   p = (void *)mmap((void *)0, (size_t)nbytes, PROT_READ,
                    MAP_FILE|MAP_PRIVATE, fd, (off_t)0);
   if (p == (void *)-1) {
-    perror(name);
+    tperror(name);
     close(fd);
     return 0;
   }
diff --git a/contrib/expat/xmlwf/win32filemap.c b/contrib/expat/xmlwf/win32filemap.c
index 41dc35b614db..a040a097db4c 100644
--- a/contrib/expat/xmlwf/win32filemap.c
+++ b/contrib/expat/xmlwf/win32filemap.c
@@ -1,19 +1,47 @@
-/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
-   See the file COPYING for copying permission.
+/*
+                            __  __            _
+                         ___\ \/ /_ __   __ _| |_
+                        / _ \\  /| '_ \ / _` | __|
+                       |  __//  \| |_) | (_| | |_
+                        \___/_/\_\ .__/ \__,_|\__|
+                                 |_| XML parser
+
+   Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
+   Copyright (c) 2000-2017 Expat development team
+   Licensed under the MIT license:
+
+   Permission is  hereby granted,  free of charge,  to any  person obtaining
+   a  copy  of  this  software   and  associated  documentation  files  (the
+   "Software"),  to  deal in  the  Software  without restriction,  including
+   without  limitation the  rights  to use,  copy,  modify, merge,  publish,
+   distribute, sublicense, and/or sell copies of the Software, and to permit
+   persons  to whom  the Software  is  furnished to  do so,  subject to  the
+   following conditions:
+
+   The above copyright  notice and this permission notice  shall be included
+   in all copies or substantial portions of the Software.
+
+   THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
+   EXPRESS  OR IMPLIED,  INCLUDING  BUT  NOT LIMITED  TO  THE WARRANTIES  OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+   NO EVENT SHALL THE AUTHORS OR  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+   DAMAGES OR  OTHER LIABILITY, WHETHER  IN AN  ACTION OF CONTRACT,  TORT OR
+   OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+   USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
 #define STRICT 1
 #define WIN32_LEAN_AND_MEAN 1
 
 #ifdef XML_UNICODE_WCHAR_T
-#ifndef XML_UNICODE
-#define XML_UNICODE
-#endif
+# ifndef XML_UNICODE
+#  define XML_UNICODE
+# endif
 #endif
 
 #ifdef XML_UNICODE
-#define UNICODE
-#define _UNICODE
+# define UNICODE
+# define _UNICODE
 #endif /* XML_UNICODE */
 #include <windows.h>
 #include <stdio.h>
@@ -42,11 +70,12 @@ filemap(const TCHAR *name,
   size = GetFileSize(f, &sizeHi);
   if (size == (DWORD)-1) {
     win32perror(name);
+    CloseHandle(f);
     return 0;
   }
-  if (sizeHi) {
-    _ftprintf(stderr, _T("%s: bigger than 2Gb\n"), name);
-    return 0;
+  if (sizeHi || (size > XML_MAX_CHUNK_LEN)) {
+    CloseHandle(f);
+    return 2;  /* Cannot be passed to XML_Parse in one go */
   }
   /* CreateFileMapping barfs on zero length files */
   if (size == 0) {
diff --git a/contrib/expat/xmlwf/xmlfile.c b/contrib/expat/xmlwf/xmlfile.c
index 2f769aa894cf..4075f5710cad 100644
--- a/contrib/expat/xmlwf/xmlfile.c
+++ b/contrib/expat/xmlwf/xmlfile.c
@@ -1,5 +1,33 @@
-/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
-   See the file COPYING for copying permission.
+/*
+                            __  __            _
+                         ___\ \/ /_ __   __ _| |_
+                        / _ \\  /| '_ \ / _` | __|
+                       |  __//  \| |_) | (_| | |_
+                        \___/_/\_\ .__/ \__,_|\__|
+                                 |_| XML parser
+
+   Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
+   Copyright (c) 2000-2017 Expat development team
+   Licensed under the MIT license:
+
+   Permission is  hereby granted,  free of charge,  to any  person obtaining
+   a  copy  of  this  software   and  associated  documentation  files  (the
+   "Software"),  to  deal in  the  Software  without restriction,  including
+   without  limitation the  rights  to use,  copy,  modify, merge,  publish,
+   distribute, sublicense, and/or sell copies of the Software, and to permit
+   persons  to whom  the Software  is  furnished to  do so,  subject to  the
+   following conditions:
+
+   The above copyright  notice and this permission notice  shall be included
+   in all copies or substantial portions of the Software.
+
+   THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
+   EXPRESS  OR IMPLIED,  INCLUDING  BUT  NOT LIMITED  TO  THE WARRANTIES  OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+   NO EVENT SHALL THE AUTHORS OR  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+   DAMAGES OR  OTHER LIABILITY, WHETHER  IN AN  ACTION OF CONTRACT,  TORT OR
+   OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+   USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
 #include <stdio.h>
@@ -8,17 +36,11 @@
 #include <string.h>
 #include <fcntl.h>
 
-#ifdef WIN32
+#ifdef _WIN32
 #include "winconfig.h"
-#elif defined(MACOS_CLASSIC)
-#include "macconfig.h"
-#elif defined(__amigaos__)
-#include "amigaconfig.h"
-#elif defined(__WATCOMC__)
-#include "watcomconfig.h"
 #elif defined(HAVE_EXPAT_CONFIG_H)
 #include <expat_config.h>
-#endif /* ndef WIN32 */
+#endif /* ndef _WIN32 */
 
 #include "expat.h"
 #include "internal.h"  /* for UNUSED_P only */
@@ -26,14 +48,10 @@
 #include "xmltchar.h"
 #include "filemap.h"
 
-#if (defined(_MSC_VER) || (defined(__WATCOMC__) && !defined(__LINUX__)))
+#if defined(_MSC_VER)
 #include <io.h>
 #endif
 
-#if defined(__amigaos__) && defined(__USE_INLINE__)
-#include <proto/expat.h>
-#endif
-
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif
@@ -58,13 +76,20 @@ typedef struct {
   int *retPtr;
 } PROCESS_ARGS;
 
+static int
+processStream(const XML_Char *filename, XML_Parser parser);
+
 static void
 reportError(XML_Parser parser, const XML_Char *filename)
 {
   enum XML_Error code = XML_GetErrorCode(parser);
   const XML_Char *message = XML_ErrorString(code);
   if (message)
-    ftprintf(stdout, T("%s:%" XML_FMT_INT_MOD "u:%" XML_FMT_INT_MOD "u: %s\n"),
+    ftprintf(stdout,
+             T("%s")
+               T(":%") T(XML_FMT_INT_MOD) T("u")
+               T(":%") T(XML_FMT_INT_MOD) T("u")
+               T(": %s\n"),
              filename,
              XML_GetErrorLineNumber(parser),
              XML_GetErrorColumnNumber(parser),
@@ -88,7 +113,7 @@ processFile(const void *data, size_t size,
     *retPtr = 1;
 }
 
-#if (defined(WIN32) || defined(__WATCOMC__))
+#if defined(_WIN32)
 
 static int
 isAsciiLetter(XML_Char c)
@@ -96,7 +121,7 @@ isAsciiLetter(XML_Char c)
   return (T('a') <= c && c <= T('z')) || (T('A') <= c && c <= T('Z'));
 }
 
-#endif /* WIN32 */
+#endif /* _WIN32 */
 
 static const XML_Char *
 resolveSystemId(const XML_Char *base, const XML_Char *systemId,
@@ -106,7 +131,7 @@ resolveSystemId(const XML_Char *base, const XML_Char *systemId,
   *toFree = 0;
   if (!base
       || *systemId == T('/')
-#if (defined(WIN32) || defined(__WATCOMC__))
+#if defined(_WIN32)
       || *systemId == T('\\')
       || (isAsciiLetter(systemId[0]) && systemId[1] == T(':'))
 #endif
@@ -120,7 +145,7 @@ resolveSystemId(const XML_Char *base, const XML_Char *systemId,
   s = *toFree;
   if (tcsrchr(s, T('/')))
     s = tcsrchr(s, T('/')) + 1;
-#if (defined(WIN32) || defined(__WATCOMC__))
+#if defined(_WIN32)
   if (tcsrchr(s, T('\\')))
     s = tcsrchr(s, T('\\')) + 1;
 #endif
@@ -139,13 +164,23 @@ externalEntityRefFilemap(XML_Parser parser,
   XML_Char *s;
   const XML_Char *filename;
   XML_Parser entParser = XML_ExternalEntityParserCreate(parser, context, 0);
+  int filemapRes;
   PROCESS_ARGS args;
   args.retPtr = &result;
   args.parser = entParser;
   filename = resolveSystemId(base, systemId, &s);
   XML_SetBase(entParser, filename);
-  if (!filemap(filename, processFile, &args))
+  filemapRes = filemap(filename, processFile, &args);
+  switch (filemapRes) {
+  case 0:
     result = 0;
+    break;
+  case 2:
+    ftprintf(stderr, T("%s: file too large for memory-mapping")
+        T(", switching to streaming\n"), filename);
+    result = processStream(filename, entParser);
+    break;
+  }
   free(s);
   XML_ParserFree(entParser);
   return result;
@@ -171,18 +206,18 @@ processStream(const XML_Char *filename, XML_Parser parser)
       if (filename != NULL)
         close(fd);
       ftprintf(stderr, T("%s: out of memory\n"),
-               filename != NULL ? filename : "xmlwf");
+               filename != NULL ? filename : T("xmlwf"));
       return 0;
     }
     nread = read(fd, buf, READ_SIZE);
     if (nread < 0) {
-      tperror(filename != NULL ? filename : "STDIN");
+      tperror(filename != NULL ? filename : T("STDIN"));
       if (filename != NULL)
         close(fd);
       return 0;
     }
     if (XML_ParseBuffer(parser, nread, nread == 0) == XML_STATUS_ERROR) {
-      reportError(parser, filename != NULL ? filename : "STDIN");
+        reportError(parser, filename != NULL ? filename : T("STDIN"));
       if (filename != NULL)
         close(fd);
       return 0;
@@ -233,11 +268,21 @@ XML_ProcessFile(XML_Parser parser,
                                       ? externalEntityRefFilemap
                                       : externalEntityRefStream);
   if (flags & XML_MAP_FILE) {
+    int filemapRes;
     PROCESS_ARGS args;
     args.retPtr = &result;
     args.parser = parser;
-    if (!filemap(filename, processFile, &args))
+    filemapRes = filemap(filename, processFile, &args);
+    switch (filemapRes) {
+    case 0:
       result = 0;
+      break;
+    case 2:
+      ftprintf(stderr, T("%s: file too large for memory-mapping")
+          T(", switching to streaming\n"), filename);
+      result = processStream(filename, parser);
+      break;
+    }
   }
   else
     result = processStream(filename, parser);
diff --git a/contrib/expat/xmlwf/xmlfile.h b/contrib/expat/xmlwf/xmlfile.h
index d093ecc06f9c..c47ea2cf5947 100644
--- a/contrib/expat/xmlwf/xmlfile.h
+++ b/contrib/expat/xmlwf/xmlfile.h
@@ -1,5 +1,33 @@
-/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
-   See the file COPYING for copying permission.
+/*
+                            __  __            _
+                         ___\ \/ /_ __   __ _| |_
+                        / _ \\  /| '_ \ / _` | __|
+                       |  __//  \| |_) | (_| | |_
+                        \___/_/\_\ .__/ \__,_|\__|
+                                 |_| XML parser
+
+   Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
+   Copyright (c) 2000-2017 Expat development team
+   Licensed under the MIT license:
+
+   Permission is  hereby granted,  free of charge,  to any  person obtaining
+   a  copy  of  this  software   and  associated  documentation  files  (the
+   "Software"),  to  deal in  the  Software  without restriction,  including
+   without  limitation the  rights  to use,  copy,  modify, merge,  publish,
+   distribute, sublicense, and/or sell copies of the Software, and to permit
+   persons  to whom  the Software  is  furnished to  do so,  subject to  the
+   following conditions:
+
+   The above copyright  notice and this permission notice  shall be included
+   in all copies or substantial portions of the Software.
+
+   THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
+   EXPRESS  OR IMPLIED,  INCLUDING  BUT  NOT LIMITED  TO  THE WARRANTIES  OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+   NO EVENT SHALL THE AUTHORS OR  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+   DAMAGES OR  OTHER LIABILITY, WHETHER  IN AN  ACTION OF CONTRACT,  TORT OR
+   OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+   USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
 #define XML_MAP_FILE 01
diff --git a/contrib/expat/xmlwf/xmlmime.c b/contrib/expat/xmlwf/xmlmime.c
index 56a0e7f40e49..c530979060f4 100644
--- a/contrib/expat/xmlwf/xmlmime.c
+++ b/contrib/expat/xmlwf/xmlmime.c
@@ -1,3 +1,35 @@
+/*
+                            __  __            _
+                         ___\ \/ /_ __   __ _| |_
+                        / _ \\  /| '_ \ / _` | __|
+                       |  __//  \| |_) | (_| | |_
+                        \___/_/\_\ .__/ \__,_|\__|
+                                 |_| XML parser
+
+   Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
+   Copyright (c) 2000-2017 Expat development team
+   Licensed under the MIT license:
+
+   Permission is  hereby granted,  free of charge,  to any  person obtaining
+   a  copy  of  this  software   and  associated  documentation  files  (the
+   "Software"),  to  deal in  the  Software  without restriction,  including
+   without  limitation the  rights  to use,  copy,  modify, merge,  publish,
+   distribute, sublicense, and/or sell copies of the Software, and to permit
+   persons  to whom  the Software  is  furnished to  do so,  subject to  the
+   following conditions:
+
+   The above copyright  notice and this permission notice  shall be included
+   in all copies or substantial portions of the Software.
+
+   THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
+   EXPRESS  OR IMPLIED,  INCLUDING  BUT  NOT LIMITED  TO  THE WARRANTIES  OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+   NO EVENT SHALL THE AUTHORS OR  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+   DAMAGES OR  OTHER LIABILITY, WHETHER  IN AN  ACTION OF CONTRACT,  TORT OR
+   OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+   USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
 #include <string.h>
 #include "xmlmime.h"
 
diff --git a/contrib/expat/xmlwf/xmlmime.h b/contrib/expat/xmlwf/xmlmime.h
index bf0356df0d91..0471286234a1 100644
--- a/contrib/expat/xmlwf/xmlmime.h
+++ b/contrib/expat/xmlwf/xmlmime.h
@@ -1,3 +1,35 @@
+/*
+                            __  __            _
+                         ___\ \/ /_ __   __ _| |_
+                        / _ \\  /| '_ \ / _` | __|
+                       |  __//  \| |_) | (_| | |_
+                        \___/_/\_\ .__/ \__,_|\__|
+                                 |_| XML parser
+
+   Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
+   Copyright (c) 2000-2017 Expat development team
+   Licensed under the MIT license:
+
+   Permission is  hereby granted,  free of charge,  to any  person obtaining
+   a  copy  of  this  software   and  associated  documentation  files  (the
+   "Software"),  to  deal in  the  Software  without restriction,  including
+   without  limitation the  rights  to use,  copy,  modify, merge,  publish,
+   distribute, sublicense, and/or sell copies of the Software, and to permit
+   persons  to whom  the Software  is  furnished to  do so,  subject to  the
+   following conditions:
+
+   The above copyright  notice and this permission notice  shall be included
+   in all copies or substantial portions of the Software.
+
+   THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
+   EXPRESS  OR IMPLIED,  INCLUDING  BUT  NOT LIMITED  TO  THE WARRANTIES  OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+   NO EVENT SHALL THE AUTHORS OR  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+   DAMAGES OR  OTHER LIABILITY, WHETHER  IN AN  ACTION OF CONTRACT,  TORT OR
+   OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+   USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
 #ifdef __cplusplus
 extern "C" {
 #endif
diff --git a/contrib/expat/xmlwf/xmltchar.h b/contrib/expat/xmlwf/xmltchar.h
index 1088575512de..cdfaea79552f 100644
--- a/contrib/expat/xmlwf/xmltchar.h
+++ b/contrib/expat/xmlwf/xmltchar.h
@@ -1,36 +1,74 @@
+/*
+                            __  __            _
+                         ___\ \/ /_ __   __ _| |_
+                        / _ \\  /| '_ \ / _` | __|
+                       |  __//  \| |_) | (_| | |_
+                        \___/_/\_\ .__/ \__,_|\__|
+                                 |_| XML parser
+
+   Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
+   Copyright (c) 2000-2017 Expat development team
+   Licensed under the MIT license:
+
+   Permission is  hereby granted,  free of charge,  to any  person obtaining
+   a  copy  of  this  software   and  associated  documentation  files  (the
+   "Software"),  to  deal in  the  Software  without restriction,  including
+   without  limitation the  rights  to use,  copy,  modify, merge,  publish,
+   distribute, sublicense, and/or sell copies of the Software, and to permit
+   persons  to whom  the Software  is  furnished to  do so,  subject to  the
+   following conditions:
+
+   The above copyright  notice and this permission notice  shall be included
+   in all copies or substantial portions of the Software.
+
+   THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
+   EXPRESS  OR IMPLIED,  INCLUDING  BUT  NOT LIMITED  TO  THE WARRANTIES  OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+   NO EVENT SHALL THE AUTHORS OR  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+   DAMAGES OR  OTHER LIABILITY, WHETHER  IN AN  ACTION OF CONTRACT,  TORT OR
+   OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+   USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+/* Ensures compile-time constants are consistent */
+#include "expat_external.h"
+
 #ifdef XML_UNICODE
-#ifndef XML_UNICODE_WCHAR_T
-#error xmlwf requires a 16-bit Unicode-compatible wchar_t 
-#endif
-#define T(x) L ## x
-#define ftprintf fwprintf
-#define tfopen _wfopen
-#define fputts fputws
-#define puttc putwc
-#define tcscmp wcscmp
-#define tcscpy wcscpy
-#define tcscat wcscat
-#define tcschr wcschr
-#define tcsrchr wcsrchr
-#define tcslen wcslen
-#define tperror _wperror
-#define topen _wopen
-#define tmain wmain
-#define tremove _wremove
+# ifndef XML_UNICODE_WCHAR_T
+#  error xmlwf requires a 16-bit Unicode-compatible wchar_t
+# endif
+# define _PREPEND_BIG_L(x) L ## x
+# define T(x) _PREPEND_BIG_L(x)
+# define ftprintf fwprintf
+# define tfopen _wfopen
+# define fputts fputws
+# define puttc putwc
+# define tcscmp wcscmp
+# define tcscpy wcscpy
+# define tcscat wcscat
+# define tcschr wcschr
+# define tcsrchr wcsrchr
+# define tcslen wcslen
+# define tperror _wperror
+# define topen _wopen
+# define tmain wmain
+# define tremove _wremove
+# define tchar wchar_t
 #else /* not XML_UNICODE */
-#define T(x) x
-#define ftprintf fprintf
-#define tfopen fopen
-#define fputts fputs
-#define puttc putc
-#define tcscmp strcmp
-#define tcscpy strcpy
-#define tcscat strcat
-#define tcschr strchr
-#define tcsrchr strrchr
-#define tcslen strlen
-#define tperror perror
-#define topen open
-#define tmain main
-#define tremove remove
+# define T(x) x
+# define ftprintf fprintf
+# define tfopen fopen
+# define fputts fputs
+# define puttc putc
+# define tcscmp strcmp
+# define tcscpy strcpy
+# define tcscat strcat
+# define tcschr strchr
+# define tcsrchr strrchr
+# define tcslen strlen
+# define tperror perror
+# define topen open
+# define tmain main
+# define tremove remove
+# define tchar char
 #endif /* not XML_UNICODE */
diff --git a/contrib/expat/xmlwf/xmlurl.h b/contrib/expat/xmlwf/xmlurl.h
index d329913ac853..f2cff093e2ea 100644
--- a/contrib/expat/xmlwf/xmlurl.h
+++ b/contrib/expat/xmlwf/xmlurl.h
@@ -1,3 +1,35 @@
+/*
+                            __  __            _
+                         ___\ \/ /_ __   __ _| |_
+                        / _ \\  /| '_ \ / _` | __|
+                       |  __//  \| |_) | (_| | |_
+                        \___/_/\_\ .__/ \__,_|\__|
+                                 |_| XML parser
+
+   Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
+   Copyright (c) 2000-2017 Expat development team
+   Licensed under the MIT license:
+
+   Permission is  hereby granted,  free of charge,  to any  person obtaining
+   a  copy  of  this  software   and  associated  documentation  files  (the
+   "Software"),  to  deal in  the  Software  without restriction,  including
+   without  limitation the  rights  to use,  copy,  modify, merge,  publish,
+   distribute, sublicense, and/or sell copies of the Software, and to permit
+   persons  to whom  the Software  is  furnished to  do so,  subject to  the
+   following conditions:
+
+   The above copyright  notice and this permission notice  shall be included
+   in all copies or substantial portions of the Software.
+
+   THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
+   EXPRESS  OR IMPLIED,  INCLUDING  BUT  NOT LIMITED  TO  THE WARRANTIES  OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+   NO EVENT SHALL THE AUTHORS OR  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+   DAMAGES OR  OTHER LIABILITY, WHETHER  IN AN  ACTION OF CONTRACT,  TORT OR
+   OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+   USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
 #ifdef __cplusplus
 extern "C" {
 #endif
diff --git a/contrib/expat/xmlwf/xmlwf.c b/contrib/expat/xmlwf/xmlwf.c
index 66d6c9ef4b71..82d028ea56fd 100644
--- a/contrib/expat/xmlwf/xmlwf.c
+++ b/contrib/expat/xmlwf/xmlwf.c
@@ -1,7 +1,36 @@
-/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
-   See the file COPYING for copying permission.
+/*
+                            __  __            _
+                         ___\ \/ /_ __   __ _| |_
+                        / _ \\  /| '_ \ / _` | __|
+                       |  __//  \| |_) | (_| | |_
+                        \___/_/\_\ .__/ \__,_|\__|
+                                 |_| XML parser
+
+   Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
+   Copyright (c) 2000-2017 Expat development team
+   Licensed under the MIT license:
+
+   Permission is  hereby granted,  free of charge,  to any  person obtaining
+   a  copy  of  this  software   and  associated  documentation  files  (the
+   "Software"),  to  deal in  the  Software  without restriction,  including
+   without  limitation the  rights  to use,  copy,  modify, merge,  publish,
+   distribute, sublicense, and/or sell copies of the Software, and to permit
+   persons  to whom  the Software  is  furnished to  do so,  subject to  the
+   following conditions:
+
+   The above copyright  notice and this permission notice  shall be included
+   in all copies or substantial portions of the Software.
+
+   THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
+   EXPRESS  OR IMPLIED,  INCLUDING  BUT  NOT LIMITED  TO  THE WARRANTIES  OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+   NO EVENT SHALL THE AUTHORS OR  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+   DAMAGES OR  OTHER LIABILITY, WHETHER  IN AN  ACTION OF CONTRACT,  TORT OR
+   OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+   USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
+#include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <stddef.h>
@@ -14,13 +43,28 @@
 #include "xmltchar.h"
 
 #ifdef _MSC_VER
-#include <crtdbg.h>
+# include <crtdbg.h>
 #endif
 
-#if defined(__amigaos__) && defined(__USE_INLINE__)
-#include <proto/expat.h>
+#ifdef XML_UNICODE
+# include <wchar.h>
 #endif
 
+/* Structures for handler user data */
+typedef struct NotationList {
+  struct NotationList *next;
+  const XML_Char *notationName;
+  const XML_Char *systemId;
+  const XML_Char *publicId;
+} NotationList;
+
+typedef struct xmlwfUserData {
+  FILE *fp;
+  NotationList *notationListHead;
+  const XML_Char *currentDoctypeName;
+} XmlwfUserData;
+
+
 /* This ensures proper sorting. */
 
 #define NSSEP T('\001')
@@ -28,7 +72,7 @@
 static void XMLCALL
 characterData(void *userData, const XML_Char *s, int len)
 {
-  FILE *fp = (FILE *)userData;
+  FILE *fp = ((XmlwfUserData *)userData)->fp;
   for (; len > 0; --len, ++s) {
     switch (*s) {
     case T('&'):
@@ -66,6 +110,7 @@ attributeValue(FILE *fp, const XML_Char *s)
 {
   puttc(T('='), fp);
   puttc(T('"'), fp);
+  assert(s);
   for (;;) {
     switch (*s) {
     case 0:
@@ -123,7 +168,7 @@ startElement(void *userData, const XML_Char *name, const XML_Char **atts)
 {
   int nAtts;
   const XML_Char **p;
-  FILE *fp = (FILE *)userData;
+  FILE *fp = ((XmlwfUserData *)userData)->fp;
   puttc(T('<'), fp);
   fputts(name, fp);
 
@@ -145,7 +190,7 @@ startElement(void *userData, const XML_Char *name, const XML_Char **atts)
 static void XMLCALL
 endElement(void *userData, const XML_Char *name)
 {
-  FILE *fp = (FILE *)userData;
+  FILE *fp = ((XmlwfUserData *)userData)->fp;
   puttc(T('<'), fp);
   puttc(T('/'), fp);
   fputts(name, fp);
@@ -170,7 +215,7 @@ startElementNS(void *userData, const XML_Char *name, const XML_Char **atts)
   int nAtts;
   int nsi;
   const XML_Char **p;
-  FILE *fp = (FILE *)userData;
+  FILE *fp = ((XmlwfUserData *)userData)->fp;
   const XML_Char *sep;
   puttc(T('<'), fp);
 
@@ -216,7 +261,7 @@ startElementNS(void *userData, const XML_Char *name, const XML_Char **atts)
 static void XMLCALL
 endElementNS(void *userData, const XML_Char *name)
 {
-  FILE *fp = (FILE *)userData;
+  FILE *fp = ((XmlwfUserData *)userData)->fp;
   const XML_Char *sep;
   puttc(T('<'), fp);
   puttc(T('/'), fp);
@@ -236,7 +281,7 @@ static void XMLCALL
 processingInstruction(void *userData, const XML_Char *target,
                       const XML_Char *data)
 {
-  FILE *fp = (FILE *)userData;
+  FILE *fp = ((XmlwfUserData *)userData)->fp;
   puttc(T('<'), fp);
   puttc(T('?'), fp);
   fputts(target, fp);
@@ -246,6 +291,200 @@ processingInstruction(void *userData, const XML_Char *target,
   puttc(T('>'), fp);
 }
 
+
+static XML_Char *xcsdup(const XML_Char *s)
+{
+  XML_Char *result;
+  int count = 0;
+  int numBytes;
+
+  /* Get the length of the string, including terminator */
+  while (s[count++] != 0) {
+    /* Do nothing */
+  }
+  numBytes = count * sizeof(XML_Char);
+  result = malloc(numBytes);
+  if (result == NULL)
+    return NULL;
+  memcpy(result, s, numBytes);
+  return result;
+}
+
+static void XMLCALL
+startDoctypeDecl(void *userData,
+                 const XML_Char *doctypeName,
+                 const XML_Char *UNUSED_P(sysid),
+                 const XML_Char *UNUSED_P(publid),
+                 int UNUSED_P(has_internal_subset))
+{
+  XmlwfUserData *data = (XmlwfUserData *)userData;
+  data->currentDoctypeName = xcsdup(doctypeName);
+}
+
+static void
+freeNotations(XmlwfUserData *data)
+{
+  NotationList *notationListHead = data->notationListHead;
+
+  while (notationListHead != NULL) {
+    NotationList *next = notationListHead->next;
+    free((void *)notationListHead->notationName);
+    free((void *)notationListHead->systemId);
+    free((void *)notationListHead->publicId);
+    free(notationListHead);
+    notationListHead = next;
+  }
+  data->notationListHead = NULL;
+}
+
+static int xcscmp(const XML_Char *xs, const XML_Char *xt)
+{
+  while (*xs != 0 && *xt != 0) {
+    if (*xs < *xt)
+      return -1;
+    if (*xs > *xt)
+      return 1;
+    xs++;
+    xt++;
+  }
+  if (*xs < *xt)
+    return -1;
+  if (*xs > *xt)
+    return 1;
+  return 0;
+}
+
+static int
+notationCmp(const void *a, const void *b)
+{
+  const NotationList * const n1 = *(NotationList **)a;
+  const NotationList * const n2 = *(NotationList **)b;
+
+  return xcscmp(n1->notationName, n2->notationName);
+}
+
+static void XMLCALL
+endDoctypeDecl(void *userData)
+{
+  XmlwfUserData *data = (XmlwfUserData *)userData;
+  NotationList **notations;
+  int notationCount = 0;
+  NotationList *p;
+  int i;
+
+  /* How many notations do we have? */
+  for (p = data->notationListHead; p != NULL; p = p->next)
+    notationCount++;
+  if (notationCount == 0) {
+    /* Nothing to report */
+    free((void *)data->currentDoctypeName);
+    data->currentDoctypeName = NULL;
+    return;
+  }
+
+  notations = malloc(notationCount * sizeof(NotationList *));
+  if (notations == NULL) {
+    fprintf(stderr, "Unable to sort notations");
+    freeNotations(data);
+    return;
+  }
+
+  for (p = data->notationListHead, i = 0;
+       i < notationCount;
+       p = p->next, i++) {
+    notations[i] = p;
+  }
+  qsort(notations, notationCount, sizeof(NotationList *), notationCmp);
+
+  /* Output the DOCTYPE header */
+  fputts(T("<!DOCTYPE "), data->fp);
+  fputts(data->currentDoctypeName, data->fp);
+  fputts(T(" [\n"), data->fp);
+
+  /* Now the NOTATIONs */
+  for (i = 0; i < notationCount; i++) {
+    fputts(T("<!NOTATION "), data->fp);
+    fputts(notations[i]->notationName, data->fp);
+    if (notations[i]->publicId != NULL) {
+      fputts(T(" PUBLIC '"), data->fp);
+      fputts(notations[i]->publicId, data->fp);
+      puttc(T('\''), data->fp);
+      if (notations[i]->systemId != NULL) {
+        puttc(T(' '), data->fp);
+        puttc(T('\''), data->fp);
+        fputts(notations[i]->systemId, data->fp);
+        puttc(T('\''), data->fp);
+      }
+    }
+    else if (notations[i]->systemId != NULL) {
+      fputts(T(" SYSTEM '"), data->fp);
+      fputts(notations[i]->systemId, data->fp);
+      puttc(T('\''), data->fp);
+    }
+    puttc(T('>'), data->fp);
+    puttc(T('\n'), data->fp);
+  }
+
+  /* Finally end the DOCTYPE */
+  fputts(T("]>\n"), data->fp);
+
+  free(notations);
+  freeNotations(data);
+  free((void *)data->currentDoctypeName);
+  data->currentDoctypeName = NULL;
+}
+
+static void XMLCALL
+notationDecl(void *userData,
+             const XML_Char *notationName,
+             const XML_Char *UNUSED_P(base),
+             const XML_Char *systemId,
+             const XML_Char *publicId)
+{
+  XmlwfUserData *data = (XmlwfUserData *)userData;
+  NotationList *entry = malloc(sizeof(NotationList));
+  const char *errorMessage = "Unable to store NOTATION for output\n";
+
+  if (entry == NULL) {
+    fputs(errorMessage, stderr);
+    return; /* Nothing we can really do about this */
+  }
+  entry->notationName = xcsdup(notationName);
+  if (entry->notationName == NULL) {
+    fputs(errorMessage, stderr);
+    free(entry);
+    return;
+  }
+  if (systemId != NULL) {
+    entry->systemId = xcsdup(systemId);
+    if (entry->systemId == NULL) {
+      fputs(errorMessage, stderr);
+      free((void *)entry->notationName);
+      free(entry);
+      return;
+    }
+  }
+  else {
+    entry->systemId = NULL;
+  }
+  if (publicId != NULL) {
+    entry->publicId = xcsdup(publicId);
+    if (entry->publicId == NULL) {
+      fputs(errorMessage, stderr);
+      free((void *)entry->systemId); /* Safe if it's NULL */
+      free((void *)entry->notationName);
+      free(entry);
+      return;
+    }
+  }
+  else {
+    entry->publicId = NULL;
+  }
+
+  entry->next = data->notationListHead;
+  data->notationListHead = entry;
+}
+
 #endif /* not W3C14N */
 
 static void XMLCALL
@@ -298,7 +537,7 @@ nopProcessingInstruction(void *UNUSED_P(userData), const XML_Char *UNUSED_P(targ
 static void XMLCALL
 markup(void *userData, const XML_Char *s, int len)
 {
-  FILE *fp = (FILE *)XML_GetUserData((XML_Parser) userData);
+  FILE *fp = ((XmlwfUserData *)XML_GetUserData((XML_Parser) userData))->fp;
   for (; len > 0; --len, ++s)
     puttc(*s, fp);
 }
@@ -307,11 +546,14 @@ static void
 metaLocation(XML_Parser parser)
 {
   const XML_Char *uri = XML_GetBase(parser);
+  FILE *fp = ((XmlwfUserData *)XML_GetUserData(parser))->fp;
   if (uri)
-    ftprintf((FILE *)XML_GetUserData(parser), T(" uri=\"%s\""), uri);
-  ftprintf((FILE *)XML_GetUserData(parser),
-           T(" byte=\"%" XML_FMT_INT_MOD "d\" nbytes=\"%d\" \
-			 line=\"%" XML_FMT_INT_MOD "u\" col=\"%" XML_FMT_INT_MOD "u\""),
+    ftprintf(fp, T(" uri=\"%s\""), uri);
+  ftprintf(fp,
+           T(" byte=\"%") T(XML_FMT_INT_MOD) T("d\"")
+             T(" nbytes=\"%d\"")
+             T(" line=\"%") T(XML_FMT_INT_MOD) T("u\"")
+             T(" col=\"%") T(XML_FMT_INT_MOD) T("u\""),
            XML_GetCurrentByteIndex(parser),
            XML_GetCurrentByteCount(parser),
            XML_GetCurrentLineNumber(parser),
@@ -321,13 +563,15 @@ metaLocation(XML_Parser parser)
 static void
 metaStartDocument(void *userData)
 {
-  fputts(T("<document>\n"), (FILE *)XML_GetUserData((XML_Parser) userData));
+  fputts(T("<document>\n"),
+         ((XmlwfUserData *)XML_GetUserData((XML_Parser) userData))->fp);
 }
 
 static void
 metaEndDocument(void *userData)
 {
-  fputts(T("</document>\n"), (FILE *)XML_GetUserData((XML_Parser) userData));
+  fputts(T("</document>\n"),
+         ((XmlwfUserData *)XML_GetUserData((XML_Parser) userData))->fp);
 }
 
 static void XMLCALL
@@ -335,7 +579,8 @@ metaStartElement(void *userData, const XML_Char *name,
                  const XML_Char **atts)
 {
   XML_Parser parser = (XML_Parser) userData;
-  FILE *fp = (FILE *)XML_GetUserData(parser);
+  XmlwfUserData *data = (XmlwfUserData *)XML_GetUserData(parser);
+  FILE *fp = data->fp;
   const XML_Char **specifiedAttsEnd
     = atts + XML_GetSpecifiedAttributeCount(parser);
   const XML_Char **idAttPtr;
@@ -344,14 +589,14 @@ metaStartElement(void *userData, const XML_Char *name,
     idAttPtr = 0;
   else
     idAttPtr = atts + idAttIndex;
-    
+
   ftprintf(fp, T("<starttag name=\"%s\""), name);
   metaLocation(parser);
   if (*atts) {
     fputts(T(">\n"), fp);
     do {
       ftprintf(fp, T("<attribute name=\"%s\" value=\""), atts[0]);
-      characterData(fp, atts[1], (int)tcslen(atts[1]));
+      characterData(data, atts[1], (int)tcslen(atts[1]));
       if (atts >= specifiedAttsEnd)
         fputts(T("\" defaulted=\"yes\"/>\n"), fp);
       else if (atts == idAttPtr)
@@ -369,7 +614,8 @@ static void XMLCALL
 metaEndElement(void *userData, const XML_Char *name)
 {
   XML_Parser parser = (XML_Parser) userData;
-  FILE *fp = (FILE *)XML_GetUserData(parser);
+  XmlwfUserData *data = (XmlwfUserData *)XML_GetUserData(parser);
+  FILE *fp = data->fp;
   ftprintf(fp, T("<endtag name=\"%s\""), name);
   metaLocation(parser);
   fputts(T("/>\n"), fp);
@@ -380,9 +626,10 @@ metaProcessingInstruction(void *userData, const XML_Char *target,
                           const XML_Char *data)
 {
   XML_Parser parser = (XML_Parser) userData;
-  FILE *fp = (FILE *)XML_GetUserData(parser);
+  XmlwfUserData *usrData = (XmlwfUserData *)XML_GetUserData(parser);
+  FILE *fp = usrData->fp;
   ftprintf(fp, T("<pi target=\"%s\" data=\""), target);
-  characterData(fp, data, (int)tcslen(data));
+  characterData(usrData, data, (int)tcslen(data));
   puttc(T('"'), fp);
   metaLocation(parser);
   fputts(T("/>\n"), fp);
@@ -392,9 +639,10 @@ static void XMLCALL
 metaComment(void *userData, const XML_Char *data)
 {
   XML_Parser parser = (XML_Parser) userData;
-  FILE *fp = (FILE *)XML_GetUserData(parser);
+  XmlwfUserData *usrData = (XmlwfUserData *)XML_GetUserData(parser);
+  FILE *fp = usrData->fp;
   fputts(T("<comment data=\""), fp);
-  characterData(fp, data, (int)tcslen(data));
+  characterData(usrData, data, (int)tcslen(data));
   puttc(T('"'), fp);
   metaLocation(parser);
   fputts(T("/>\n"), fp);
@@ -404,7 +652,8 @@ static void XMLCALL
 metaStartCdataSection(void *userData)
 {
   XML_Parser parser = (XML_Parser) userData;
-  FILE *fp = (FILE *)XML_GetUserData(parser);
+  XmlwfUserData *data = (XmlwfUserData *)XML_GetUserData(parser);
+  FILE *fp = data->fp;
   fputts(T("<startcdata"), fp);
   metaLocation(parser);
   fputts(T("/>\n"), fp);
@@ -414,7 +663,8 @@ static void XMLCALL
 metaEndCdataSection(void *userData)
 {
   XML_Parser parser = (XML_Parser) userData;
-  FILE *fp = (FILE *)XML_GetUserData(parser);
+  XmlwfUserData *data = (XmlwfUserData *)XML_GetUserData(parser);
+  FILE *fp = data->fp;
   fputts(T("<endcdata"), fp);
   metaLocation(parser);
   fputts(T("/>\n"), fp);
@@ -424,9 +674,10 @@ static void XMLCALL
 metaCharacterData(void *userData, const XML_Char *s, int len)
 {
   XML_Parser parser = (XML_Parser) userData;
-  FILE *fp = (FILE *)XML_GetUserData(parser);
+  XmlwfUserData *data = (XmlwfUserData *)XML_GetUserData(parser);
+  FILE *fp = data->fp;
   fputts(T("<chars str=\""), fp);
-  characterData(fp, s, len);
+  characterData(data, s, len);
   puttc(T('"'), fp);
   metaLocation(parser);
   fputts(T("/>\n"), fp);
@@ -440,7 +691,8 @@ metaStartDoctypeDecl(void *userData,
                      int UNUSED_P(has_internal_subset))
 {
   XML_Parser parser = (XML_Parser) userData;
-  FILE *fp = (FILE *)XML_GetUserData(parser);
+  XmlwfUserData *data = (XmlwfUserData *)XML_GetUserData(parser);
+  FILE *fp = data->fp;
   ftprintf(fp, T("<startdoctype name=\"%s\""), doctypeName);
   metaLocation(parser);
   fputts(T("/>\n"), fp);
@@ -450,7 +702,8 @@ static void XMLCALL
 metaEndDoctypeDecl(void *userData)
 {
   XML_Parser parser = (XML_Parser) userData;
-  FILE *fp = (FILE *)XML_GetUserData(parser);
+  XmlwfUserData *data = (XmlwfUserData *)XML_GetUserData(parser);
+  FILE *fp = data->fp;
   fputts(T("<enddoctype"), fp);
   metaLocation(parser);
   fputts(T("/>\n"), fp);
@@ -464,13 +717,14 @@ metaNotationDecl(void *userData,
                  const XML_Char *publicId)
 {
   XML_Parser parser = (XML_Parser) userData;
-  FILE *fp = (FILE *)XML_GetUserData(parser);
+  XmlwfUserData *data = (XmlwfUserData *)XML_GetUserData(parser);
+  FILE *fp = data->fp;
   ftprintf(fp, T("<notation name=\"%s\""), notationName);
   if (publicId)
     ftprintf(fp, T(" public=\"%s\""), publicId);
   if (systemId) {
     fputts(T(" system=\""), fp);
-    characterData(fp, systemId, (int)tcslen(systemId));
+    characterData(data, systemId, (int)tcslen(systemId));
     puttc(T('"'), fp);
   }
   metaLocation(parser);
@@ -490,13 +744,14 @@ metaEntityDecl(void *userData,
                const XML_Char *notationName)
 {
   XML_Parser parser = (XML_Parser) userData;
-  FILE *fp = (FILE *)XML_GetUserData(parser);
+  XmlwfUserData *data = (XmlwfUserData *)XML_GetUserData(parser);
+  FILE *fp = data->fp;
 
   if (value) {
     ftprintf(fp, T("<entity name=\"%s\""), entityName);
     metaLocation(parser);
     puttc(T('>'), fp);
-    characterData(fp, value, value_length);
+    characterData(data, value, value_length);
     fputts(T("</entity/>\n"), fp);
   }
   else if (notationName) {
@@ -504,7 +759,7 @@ metaEntityDecl(void *userData,
     if (publicId)
       ftprintf(fp, T(" public=\"%s\""), publicId);
     fputts(T(" system=\""), fp);
-    characterData(fp, systemId, (int)tcslen(systemId));
+    characterData(data, systemId, (int)tcslen(systemId));
     puttc(T('"'), fp);
     ftprintf(fp, T(" notation=\"%s\""), notationName);
     metaLocation(parser);
@@ -515,7 +770,7 @@ metaEntityDecl(void *userData,
     if (publicId)
       ftprintf(fp, T(" public=\"%s\""), publicId);
     fputts(T(" system=\""), fp);
-    characterData(fp, systemId, (int)tcslen(systemId));
+    characterData(data, systemId, (int)tcslen(systemId));
     puttc(T('"'), fp);
     metaLocation(parser);
     fputts(T("/>\n"), fp);
@@ -528,13 +783,14 @@ metaStartNamespaceDecl(void *userData,
                        const XML_Char *uri)
 {
   XML_Parser parser = (XML_Parser) userData;
-  FILE *fp = (FILE *)XML_GetUserData(parser);
+  XmlwfUserData *data = (XmlwfUserData *)XML_GetUserData(parser);
+  FILE *fp = data->fp;
   fputts(T("<startns"), fp);
   if (prefix)
     ftprintf(fp, T(" prefix=\"%s\""), prefix);
   if (uri) {
     fputts(T(" ns=\""), fp);
-    characterData(fp, uri, (int)tcslen(uri));
+    characterData(data, uri, (int)tcslen(uri));
     fputts(T("\"/>\n"), fp);
   }
   else
@@ -545,7 +801,8 @@ static void XMLCALL
 metaEndNamespaceDecl(void *userData, const XML_Char *prefix)
 {
   XML_Parser parser = (XML_Parser) userData;
-  FILE *fp = (FILE *)XML_GetUserData(parser);
+  XmlwfUserData *data = (XmlwfUserData *)XML_GetUserData(parser);
+  FILE *fp = data->fp;
   if (!prefix)
     fputts(T("<endns/>\n"), fp);
   else
@@ -608,7 +865,7 @@ showVersion(XML_Char *prog)
   const XML_Feature *features = XML_GetFeatureList();
   while ((ch = *s) != 0) {
     if (ch == '/'
-#if (defined(WIN32) || defined(__WATCOMC__))
+#if defined(_WIN32)
         || ch == '\\'
 #endif
         )
@@ -635,10 +892,15 @@ static void
 usage(const XML_Char *prog, int rc)
 {
   ftprintf(stderr,
-           T("usage: %s [-s] [-n] [-p] [-x] [-e encoding] [-w] [-d output-dir] [-c] [-m] [-r] [-t] [file ...]\n"), prog);
+           T("usage: %s [-s] [-n] [-p] [-x] [-e encoding] [-w] [-d output-dir] [-c] [-m] [-r] [-t] [-N] [file ...]\n"), prog);
   exit(rc);
 }
 
+#if defined(__MINGW32__) && defined(XML_UNICODE)
+/* Silence warning about missing prototype */
+int wmain(int argc, XML_Char **argv);
+#endif
+
 int
 tmain(int argc, XML_Char **argv)
 {
@@ -650,9 +912,11 @@ tmain(int argc, XML_Char **argv)
   int outputType = 0;
   int useNamespaces = 0;
   int requireStandalone = 0;
+  int requiresNotations = 0;
   enum XML_ParamEntityParsing paramEntityParsing = 
     XML_PARAM_ENTITY_PARSING_NEVER;
   int useStdin = 0;
+  XmlwfUserData userData = { NULL, NULL, NULL };
 
 #ifdef _MSC_VER
   _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF|_CRTDBG_LEAK_CHECK_DF);
@@ -707,6 +971,10 @@ tmain(int argc, XML_Char **argv)
       outputType = 't';
       j++;
       break;
+    case T('N'):
+      requiresNotations = 1;
+      j++;
+      break;
     case T('d'):
       if (argv[i][j + 1] == T('\0')) {
         if (++i == argc)
@@ -752,7 +1020,6 @@ tmain(int argc, XML_Char **argv)
     i--;
   }
   for (; i < argc; i++) {
-    FILE *fp = 0;
     XML_Char *outName = 0;
     int result;
     XML_Parser parser;
@@ -762,7 +1029,7 @@ tmain(int argc, XML_Char **argv)
       parser = XML_ParserCreate(encoding);
 
     if (! parser) {
-      tperror("Could not instantiate parser");
+      tperror(T("Could not instantiate parser"));
       exit(1);
     }
 
@@ -785,7 +1052,7 @@ tmain(int argc, XML_Char **argv)
         const XML_Char * lastDelim = tcsrchr(file, delim[0]);
         if (lastDelim)
           file = lastDelim + 1;
-#if (defined(WIN32) || defined(__WATCOMC__))
+#if defined(_WIN32)
         else {
           const XML_Char * winDelim = T("\\");
           lastDelim = tcsrchr(file, winDelim[0]);
@@ -801,16 +1068,16 @@ tmain(int argc, XML_Char **argv)
       tcscpy(outName, outputDir);
       tcscat(outName, delim);
       tcscat(outName, file);
-      fp = tfopen(outName, T("wb"));
-      if (!fp) {
+      userData.fp = tfopen(outName, T("wb"));
+      if (!userData.fp) {
         tperror(outName);
         exit(1);
       }
-      setvbuf(fp, NULL, _IOFBF, 16384);
+      setvbuf(userData.fp, NULL, _IOFBF, 16384);
 #ifdef XML_UNICODE
-      puttc(0xFEFF, fp);
+      puttc(0xFEFF, userData.fp);
 #endif
-      XML_SetUserData(parser, fp);
+      XML_SetUserData(parser, &userData);
       switch (outputType) {
       case 'm':
         XML_UseParserAsHandlerArg(parser);
@@ -844,6 +1111,10 @@ tmain(int argc, XML_Char **argv)
         XML_SetCharacterDataHandler(parser, characterData);
 #ifndef W3C14N
         XML_SetProcessingInstructionHandler(parser, processingInstruction);
+        if (requiresNotations) {
+          XML_SetDoctypeDeclHandler(parser, startDoctypeDecl, endDoctypeDecl);
+          XML_SetNotationDeclHandler(parser, notationDecl);
+        }
 #endif /* not W3C14N */
         break;
       }
@@ -854,7 +1125,7 @@ tmain(int argc, XML_Char **argv)
     if (outputDir) {
       if (outputType == 'm')
         metaEndDocument(parser);
-      fclose(fp);
+      fclose(userData.fp);
       if (!result) {
         tremove(outName);
         exit(2);
diff --git a/contrib/expat/xmlwf/xmlwin32url.cxx b/contrib/expat/xmlwf/xmlwin32url.cxx
index bbfcce22c964..ef2a137452e7 100644
--- a/contrib/expat/xmlwf/xmlwin32url.cxx
+++ b/contrib/expat/xmlwf/xmlwin32url.cxx
@@ -1,3 +1,35 @@
+/*
+                            __  __            _
+                         ___\ \/ /_ __   __ _| |_
+                        / _ \\  /| '_ \ / _` | __|
+                       |  __//  \| |_) | (_| | |_
+                        \___/_/\_\ .__/ \__,_|\__|
+                                 |_| XML parser
+
+   Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
+   Copyright (c) 2000-2017 Expat development team
+   Licensed under the MIT license:
+
+   Permission is  hereby granted,  free of charge,  to any  person obtaining
+   a  copy  of  this  software   and  associated  documentation  files  (the
+   "Software"),  to  deal in  the  Software  without restriction,  including
+   without  limitation the  rights  to use,  copy,  modify, merge,  publish,
+   distribute, sublicense, and/or sell copies of the Software, and to permit
+   persons  to whom  the Software  is  furnished to  do so,  subject to  the
+   following conditions:
+
+   The above copyright  notice and this permission notice  shall be included
+   in all copies or substantial portions of the Software.
+
+   THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
+   EXPRESS  OR IMPLIED,  INCLUDING  BUT  NOT LIMITED  TO  THE WARRANTIES  OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+   NO EVENT SHALL THE AUTHORS OR  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+   DAMAGES OR  OTHER LIABILITY, WHETHER  IN AN  ACTION OF CONTRACT,  TORT OR
+   OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+   USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
 #include "expat.h"
 #ifdef XML_UNICODE
 #define UNICODE