diff --git a/Makefile.in b/Makefile.in
index 9c8cea4..647c618 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -1,7 +1,7 @@
-# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# Makefile.in generated by automake 1.16.3 from Makefile.am.
 # @configure_input@
 
-# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+# Copyright (C) 1994-2020 Free Software Foundation, Inc.
 
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -143,8 +143,8 @@ am__recursive_targets = \
   $(am__extra_recursive_targets)
 AM_RECURSIVE_TARGETS = $(am__recursive_targets:-recursive=) TAGS CTAGS \
 	cscope distdir distdir-am dist dist-all distcheck
-am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) \
-	$(LISP)config.h.in
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP) \
+	config.h.in
 # Read a list of newline-separated strings from the standard input,
 # and print each of them once, without duplicates.  Input order is
 # *not* preserved.
@@ -168,7 +168,7 @@ DIST_SUBDIRS = m4 libiptcdata po iptc docs win python
 am__DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/config.h.in \
 	$(srcdir)/libiptcdata.spec.in ABOUT-NLS AUTHORS COPYING \
 	ChangeLog INSTALL NEWS README TODO compile config.guess \
-	config.rpath config.sub depcomp install-sh ltmain.sh missing \
+	config.rpath config.sub install-sh ltmain.sh missing \
 	mkinstalldirs
 DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
 distdir = $(PACKAGE)-$(VERSION)
@@ -208,6 +208,8 @@ am__relativize = \
 DIST_ARCHIVES = $(distdir).tar.gz
 GZIP_ENV = --best
 DIST_TARGETS = dist-gzip
+# Exists only to be overridden by the user if desired.
+AM_DISTCHECK_DVI_TARGET = dvi
 distuninstallcheck_listfiles = find . -type f -print
 am__distuninstallcheck_listfiles = $(distuninstallcheck_listfiles) \
   | sed 's|^\./|$(prefix)/|' | grep -v '$(infodir)/dir$$'
@@ -629,6 +631,10 @@ dist-xz: distdir
 	tardir=$(distdir) && $(am__tar) | XZ_OPT=$${XZ_OPT--e} xz -c >$(distdir).tar.xz
 	$(am__post_remove_distdir)
 
+dist-zstd: distdir
+	tardir=$(distdir) && $(am__tar) | zstd -c $${ZSTD_CLEVEL-$${ZSTD_OPT--19}} >$(distdir).tar.zst
+	$(am__post_remove_distdir)
+
 dist-tarZ: distdir
 	@echo WARNING: "Support for distribution archives compressed with" \
 		       "legacy program 'compress' is deprecated." >&2
@@ -671,6 +677,8 @@ distcheck: dist
 	  eval GZIP= gzip $(GZIP_ENV) -dc $(distdir).shar.gz | unshar ;;\
 	*.zip*) \
 	  unzip $(distdir).zip ;;\
+	*.tar.zst*) \
+	  zstd -dc $(distdir).tar.zst | $(am__untar) ;;\
 	esac
 	chmod -R a-w $(distdir)
 	chmod u+w $(distdir)
@@ -686,7 +694,7 @@ distcheck: dist
 	    $(DISTCHECK_CONFIGURE_FLAGS) \
 	    --srcdir=../.. --prefix="$$dc_install_base" \
 	  && $(MAKE) $(AM_MAKEFLAGS) \
-	  && $(MAKE) $(AM_MAKEFLAGS) dvi \
+	  && $(MAKE) $(AM_MAKEFLAGS) $(AM_DISTCHECK_DVI_TARGET) \
 	  && $(MAKE) $(AM_MAKEFLAGS) check \
 	  && $(MAKE) $(AM_MAKEFLAGS) install \
 	  && $(MAKE) $(AM_MAKEFLAGS) installcheck \
@@ -848,18 +856,18 @@ uninstall-am:
 	am--refresh check check-am clean clean-cscope clean-generic \
 	clean-libtool cscope cscopelist-am ctags ctags-am dist \
 	dist-all dist-bzip2 dist-gzip dist-lzip dist-shar dist-tarZ \
-	dist-xz dist-zip distcheck distclean distclean-generic \
-	distclean-hdr distclean-libtool distclean-tags distcleancheck \
-	distdir distuninstallcheck dvi dvi-am html html-am info \
-	info-am install install-am install-data install-data-am \
-	install-dvi install-dvi-am install-exec install-exec-am \
-	install-html install-html-am install-info install-info-am \
-	install-man install-pdf install-pdf-am install-ps \
-	install-ps-am install-strip installcheck installcheck-am \
-	installdirs installdirs-am maintainer-clean \
-	maintainer-clean-generic mostlyclean mostlyclean-generic \
-	mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \
-	uninstall-am
+	dist-xz dist-zip dist-zstd distcheck distclean \
+	distclean-generic distclean-hdr distclean-libtool \
+	distclean-tags distcleancheck distdir distuninstallcheck dvi \
+	dvi-am html html-am info info-am install install-am \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-pdf \
+	install-pdf-am install-ps install-ps-am install-strip \
+	installcheck installcheck-am installdirs installdirs-am \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags tags-am uninstall uninstall-am
 
 .PRECIOUS: Makefile
 
diff --git a/aclocal.m4 b/aclocal.m4
index faf91e4..ac3c978 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1,6 +1,6 @@
-# generated automatically by aclocal 1.16.1 -*- Autoconf -*-
+# generated automatically by aclocal 1.16.3 -*- Autoconf -*-
 
-# Copyright (C) 1996-2018 Free Software Foundation, Inc.
+# Copyright (C) 1996-2020 Free Software Foundation, Inc.
 
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -20,9 +20,9 @@ You have another version of autoconf.  It may work, but is not guaranteed to.
 If you have problems, you may need to regenerate the build system entirely.
 To do so, use the procedure documented by the package, typically 'autoreconf'.])])
 
-dnl pkg.m4 - Macros to locate and utilise pkg-config.   -*- Autoconf -*-
-dnl serial 11 (pkg-config-0.29)
-dnl
+# pkg.m4 - Macros to locate and utilise pkg-config.   -*- Autoconf -*-
+# serial 12 (pkg-config-0.29.2)
+
 dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
 dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
 dnl
@@ -63,7 +63,7 @@ dnl
 dnl See the "Since" comment for each macro you use to see what version
 dnl of the macros you require.
 m4_defun([PKG_PREREQ],
-[m4_define([PKG_MACROS_VERSION], [0.29])
+[m4_define([PKG_MACROS_VERSION], [0.29.2])
 m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
     [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
 ])dnl PKG_PREREQ
@@ -164,7 +164,7 @@ AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
 AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
 
 pkg_failed=no
-AC_MSG_CHECKING([for $1])
+AC_MSG_CHECKING([for $2])
 
 _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
 _PKG_CONFIG([$1][_LIBS], [libs], [$2])
@@ -174,11 +174,11 @@ and $1[]_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.])
 
 if test $pkg_failed = yes; then
-   	AC_MSG_RESULT([no])
+        AC_MSG_RESULT([no])
         _PKG_SHORT_ERRORS_SUPPORTED
         if test $_pkg_short_errors_supported = yes; then
 	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
-        else 
+        else
 	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
         fi
 	# Put the nasty error message in config.log where it belongs
@@ -195,7 +195,7 @@ installed software in a non-standard prefix.
 _PKG_TEXT])[]dnl
         ])
 elif test $pkg_failed = untried; then
-     	AC_MSG_RESULT([no])
+        AC_MSG_RESULT([no])
 	m4_default([$4], [AC_MSG_FAILURE(
 [The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
@@ -296,7 +296,7 @@ AS_VAR_COPY([$1], [pkg_cv_][$1])
 AS_VAR_IF([$1], [""], [$5], [$4])dnl
 ])dnl PKG_CHECK_VAR
 
-# Copyright (C) 2002-2018 Free Software Foundation, Inc.
+# Copyright (C) 2002-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -311,7 +311,7 @@ AC_DEFUN([AM_AUTOMAKE_VERSION],
 [am__api_version='1.16'
 dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
 dnl require some minimum version.  Point them to the right macro.
-m4_if([$1], [1.16.1], [],
+m4_if([$1], [1.16.3], [],
       [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
 ])
 
@@ -327,14 +327,14 @@ m4_define([_AM_AUTOCONF_VERSION], [])
 # Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
 # This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
 AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
-[AM_AUTOMAKE_VERSION([1.16.1])dnl
+[AM_AUTOMAKE_VERSION([1.16.3])dnl
 m4_ifndef([AC_AUTOCONF_VERSION],
   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
 _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
 
 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
 
-# Copyright (C) 2001-2018 Free Software Foundation, Inc.
+# Copyright (C) 2001-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -386,7 +386,7 @@ am_aux_dir=`cd "$ac_aux_dir" && pwd`
 
 # AM_CONDITIONAL                                            -*- Autoconf -*-
 
-# Copyright (C) 1997-2018 Free Software Foundation, Inc.
+# Copyright (C) 1997-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -417,7 +417,7 @@ AC_CONFIG_COMMANDS_PRE(
 Usually this means the macro was only invoked conditionally.]])
 fi])])
 
-# Copyright (C) 1999-2018 Free Software Foundation, Inc.
+# Copyright (C) 1999-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -608,7 +608,7 @@ _AM_SUBST_NOTMAKE([am__nodep])dnl
 
 # Generate code to set up dependency tracking.              -*- Autoconf -*-
 
-# Copyright (C) 1999-2018 Free Software Foundation, Inc.
+# Copyright (C) 1999-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -647,7 +647,9 @@ AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
   done
   if test $am_rc -ne 0; then
     AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
-    for automatic dependency tracking.  Try re-running configure with the
+    for automatic dependency tracking.  If GNU make was not used, consider
+    re-running the configure script with MAKE="gmake" (or whatever is
+    necessary).  You can also try re-running configure with the
     '--disable-dependency-tracking' option to at least be able to build
     the package (albeit without support for automatic dependency tracking).])
   fi
@@ -674,7 +676,7 @@ AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
 
 # Do all the work for Automake.                             -*- Autoconf -*-
 
-# Copyright (C) 1996-2018 Free Software Foundation, Inc.
+# Copyright (C) 1996-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -871,7 +873,7 @@ for _am_header in $config_headers :; do
 done
 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
 
-# Copyright (C) 2001-2018 Free Software Foundation, Inc.
+# Copyright (C) 2001-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -892,7 +894,7 @@ if test x"${install_sh+set}" != xset; then
 fi
 AC_SUBST([install_sh])])
 
-# Copyright (C) 2003-2018 Free Software Foundation, Inc.
+# Copyright (C) 2003-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -914,7 +916,7 @@ AC_SUBST([am__leading_dot])])
 # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
 # From Jim Meyering
 
-# Copyright (C) 1996-2018 Free Software Foundation, Inc.
+# Copyright (C) 1996-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -949,7 +951,7 @@ AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 
 # Check to see how 'make' treats includes.	            -*- Autoconf -*-
 
-# Copyright (C) 2001-2018 Free Software Foundation, Inc.
+# Copyright (C) 2001-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -992,7 +994,7 @@ AC_SUBST([am__quote])])
 
 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
 
-# Copyright (C) 1997-2018 Free Software Foundation, Inc.
+# Copyright (C) 1997-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -1013,12 +1015,7 @@ AC_DEFUN([AM_MISSING_HAS_RUN],
 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 AC_REQUIRE_AUX_FILE([missing])dnl
 if test x"${MISSING+set}" != xset; then
-  case $am_aux_dir in
-  *\ * | *\	*)
-    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
-  *)
-    MISSING="\${SHELL} $am_aux_dir/missing" ;;
-  esac
+  MISSING="\${SHELL} '$am_aux_dir/missing'"
 fi
 # Use eval to expand $SHELL
 if eval "$MISSING --is-lightweight"; then
@@ -1033,7 +1030,7 @@ fi
 # Obsolete and "removed" macros, that must however still report explicit
 # error messages when used, to smooth transition.
 #
-# Copyright (C) 1996-2018 Free Software Foundation, Inc.
+# Copyright (C) 1996-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -1060,7 +1057,7 @@ AU_DEFUN([fp_C_PROTOTYPES], [AM_C_PROTOTYPES])
 
 # Helper functions for option handling.                     -*- Autoconf -*-
 
-# Copyright (C) 2001-2018 Free Software Foundation, Inc.
+# Copyright (C) 2001-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -1089,7 +1086,7 @@ AC_DEFUN([_AM_SET_OPTIONS],
 AC_DEFUN([_AM_IF_OPTION],
 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
 
-# Copyright (C) 1999-2018 Free Software Foundation, Inc.
+# Copyright (C) 1999-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -1136,7 +1133,7 @@ AC_LANG_POP([C])])
 # For backward compatibility.
 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
 
-# Copyright (C) 1999-2018 Free Software Foundation, Inc.
+# Copyright (C) 1999-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -1219,12 +1216,14 @@ AC_DEFUN([AM_PATH_PYTHON],
     m4_default([$3], [AC_MSG_ERROR([no suitable Python interpreter found])])
   else
 
-  dnl Query Python for its version number.  Getting [:3] seems to be
-  dnl the best way to do this; it's what "site.py" does in the standard
-  dnl library.
+  dnl Query Python for its version number.  Although site.py simply uses
+  dnl sys.version[:3], printing that failed with Python 3.10, since the
+  dnl trailing zero was eliminated. So now we output just the major
+  dnl and minor version numbers, as numbers. Apparently the tertiary
+  dnl version is not of interest.
 
   AC_CACHE_CHECK([for $am_display_PYTHON version], [am_cv_python_version],
-    [am_cv_python_version=`$PYTHON -c "import sys; sys.stdout.write(sys.version[[:3]])"`])
+    [am_cv_python_version=`$PYTHON -c "import sys; print('%u.%u' % sys.version_info[[:2]])"`])
   AC_SUBST([PYTHON_VERSION], [$am_cv_python_version])
 
   dnl Use the values of $prefix and $exec_prefix for the corresponding
@@ -1374,7 +1373,7 @@ for i in list(range(0, 4)): minverhex = (minverhex << 8) + minver[[i]]
 sys.exit(sys.hexversion < minverhex)"
   AS_IF([AM_RUN_LOG([$1 -c "$prog"])], [$3], [$4])])
 
-# Copyright (C) 2001-2018 Free Software Foundation, Inc.
+# Copyright (C) 2001-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -1393,7 +1392,7 @@ AC_DEFUN([AM_RUN_LOG],
 
 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
 
-# Copyright (C) 1996-2018 Free Software Foundation, Inc.
+# Copyright (C) 1996-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -1474,7 +1473,7 @@ AC_CONFIG_COMMANDS_PRE(
 rm -f conftest.file
 ])
 
-# Copyright (C) 2009-2018 Free Software Foundation, Inc.
+# Copyright (C) 2009-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -1534,7 +1533,7 @@ AC_SUBST([AM_BACKSLASH])dnl
 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
 ])
 
-# Copyright (C) 2001-2018 Free Software Foundation, Inc.
+# Copyright (C) 2001-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -1562,7 +1561,7 @@ fi
 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
 AC_SUBST([INSTALL_STRIP_PROGRAM])])
 
-# Copyright (C) 2006-2018 Free Software Foundation, Inc.
+# Copyright (C) 2006-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -1581,7 +1580,7 @@ AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
 
 # Check how to create a tarball.                            -*- Autoconf -*-
 
-# Copyright (C) 2004-2018 Free Software Foundation, Inc.
+# Copyright (C) 2004-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
diff --git a/compile b/compile
index 99e5052..23fcba0 100755
--- a/compile
+++ b/compile
@@ -3,7 +3,7 @@
 
 scriptversion=2018-03-07.03; # UTC
 
-# Copyright (C) 1999-2018 Free Software Foundation, Inc.
+# Copyright (C) 1999-2020 Free Software Foundation, Inc.
 # Written by Tom Tromey <tromey@cygnus.com>.
 #
 # This program is free software; you can redistribute it and/or modify
@@ -53,7 +53,7 @@ func_file_conv ()
 	  MINGW*)
 	    file_conv=mingw
 	    ;;
-	  CYGWIN*)
+	  CYGWIN* | MSYS*)
 	    file_conv=cygwin
 	    ;;
 	  *)
@@ -67,7 +67,7 @@ func_file_conv ()
 	mingw/*)
 	  file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
 	  ;;
-	cygwin/*)
+	cygwin/* | msys/*)
 	  file=`cygpath -m "$file" || echo "$file"`
 	  ;;
 	wine/*)
diff --git a/configure b/configure
index 9ae2c0c..668072b 100755
--- a/configure
+++ b/configure
@@ -2526,12 +2526,7 @@ program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"`
 am_aux_dir=`cd "$ac_aux_dir" && pwd`
 
 if test x"${MISSING+set}" != xset; then
-  case $am_aux_dir in
-  *\ * | *\	*)
-    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
-  *)
-    MISSING="\${SHELL} $am_aux_dir/missing" ;;
-  esac
+  MISSING="\${SHELL} '$am_aux_dir/missing'"
 fi
 # Use eval to expand $SHELL
 if eval "$MISSING --is-lightweight"; then
@@ -5704,7 +5699,7 @@ esac
 fi
 
 : ${AR=ar}
-: ${AR_FLAGS=cru}
+: ${AR_FLAGS=cr}
 
 
 
@@ -6205,11 +6200,8 @@ _LT_EOF
   test $ac_status = 0; }; then
     # Now try to grab the symbols.
     nlist=conftest.nm
-    if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist\""; } >&5
-  (eval $NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } && test -s "$nlist"; then
+    $ECHO "$as_me:$LINENO: $NM conftest.$ac_objext | $lt_cv_sys_global_symbol_pipe > $nlist" >&5
+    if eval "$NM" conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist 2>&5 && test -s "$nlist"; then
       # Try sorting and uniquifying the output.
       if sort "$nlist" | uniq > "$nlist"T; then
 	mv -f "$nlist"T "$nlist"
@@ -7428,8 +7420,8 @@ int forced_loaded() { return 2;}
 _LT_EOF
       echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&5
       $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&5
-      echo "$AR cru libconftest.a conftest.o" >&5
-      $AR cru libconftest.a conftest.o 2>&5
+      echo "$AR cr libconftest.a conftest.o" >&5
+      $AR cr libconftest.a conftest.o 2>&5
       echo "$RANLIB libconftest.a" >&5
       $RANLIB libconftest.a 2>&5
       cat > conftest.c << _LT_EOF
@@ -7461,11 +7453,11 @@ $as_echo "$lt_cv_ld_force_load" >&6; }
       # to the OS version, if on x86, and 10.4, the deployment
       # target defaults to 10.4. Don't you love it?
       case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
-	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
+	10.0,*86*-darwin8*|10.0,*-darwin[912]*)
 	  _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
 	10.[012][,.]*)
 	  _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
-	10.*)
+	10.*|11.*)
 	  _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
       esac
     ;;
@@ -8528,6 +8520,12 @@ lt_prog_compiler_static=
 	lt_prog_compiler_pic='-KPIC'
 	lt_prog_compiler_static='-static'
         ;;
+      # flang / f18. f95 an alias for gfortran or flang on Debian
+      flang* | f18* | f95*)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-fPIC'
+	lt_prog_compiler_static='-static'
+        ;;
       # icc used to be incompatible with GCC.
       # ICC 10 doesn't accept -KPIC any more.
       icc* | ifort*)
@@ -12526,7 +12524,7 @@ $as_echo_n "checking for $am_display_PYTHON version... " >&6; }
 if ${am_cv_python_version+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  am_cv_python_version=`$PYTHON -c "import sys; sys.stdout.write(sys.version[:3])"`
+  am_cv_python_version=`$PYTHON -c "import sys; print('%u.%u' % sys.version_info[:2])"`
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_python_version" >&5
 $as_echo "$am_cv_python_version" >&6; }
@@ -14926,8 +14924,8 @@ $as_echo "$enable_gtk_doc" >&6; }
     if test "x$PACKAGE_NAME" != "xglib"; then
 
 pkg_failed=no
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for GTKDOC_DEPS" >&5
-$as_echo_n "checking for GTKDOC_DEPS... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for glib-2.0 >= 2.10.0 gobject-2.0  >= 2.10.0" >&5
+$as_echo_n "checking for glib-2.0 >= 2.10.0 gobject-2.0  >= 2.10.0... " >&6; }
 
 if test -n "$GTKDOC_DEPS_CFLAGS"; then
     pkg_cv_GTKDOC_DEPS_CFLAGS="$GTKDOC_DEPS_CFLAGS"
@@ -14967,7 +14965,7 @@ fi
 
 
 if test $pkg_failed = yes; then
-   	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 
 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
@@ -14985,7 +14983,7 @@ fi
 
 	:
 elif test $pkg_failed = untried; then
-     	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 	:
 else
@@ -16822,7 +16820,9 @@ $as_echo X/"$am_mf" |
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error $? "Something went wrong bootstrapping makefile fragments
-    for automatic dependency tracking.  Try re-running configure with the
+    for automatic dependency tracking.  If GNU make was not used, consider
+    re-running the configure script with MAKE=\"gmake\" (or whatever is
+    necessary).  You can also try re-running configure with the
     '--disable-dependency-tracking' option to at least be able to build
     the package (albeit without support for automatic dependency tracking).
 See \`config.log' for more details" "$LINENO" 5; }
diff --git a/debian/changelog b/debian/changelog
index 54bb01b..45196f1 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+libiptcdata (1.0.5+git20180912.1.1fe0c72-1) UNRELEASED; urgency=low
+
+  * New upstream snapshot.
+
+ -- Debian Janitor <janitor@jelmer.uk>  Tue, 08 Jun 2021 16:08:46 -0000
+
 libiptcdata (1.0.5-2.3) unstable; urgency=medium
 
   * Non-maintainer upload.
diff --git a/depcomp b/depcomp
index 65cbf70..6b39162 100755
--- a/depcomp
+++ b/depcomp
@@ -3,7 +3,7 @@
 
 scriptversion=2018-03-07.03; # UTC
 
-# Copyright (C) 1999-2018 Free Software Foundation, Inc.
+# Copyright (C) 1999-2020 Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/docs/Makefile.in b/docs/Makefile.in
index f927b1e..a10b6b9 100644
--- a/docs/Makefile.in
+++ b/docs/Makefile.in
@@ -1,7 +1,7 @@
-# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# Makefile.in generated by automake 1.16.3 from Makefile.am.
 # @configure_input@
 
-# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+# Copyright (C) 1994-2020 Free Software Foundation, Inc.
 
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
diff --git a/docs/reference/Makefile.in b/docs/reference/Makefile.in
index b4eab7a..ad39d7b 100644
--- a/docs/reference/Makefile.in
+++ b/docs/reference/Makefile.in
@@ -1,7 +1,7 @@
-# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# Makefile.in generated by automake 1.16.3 from Makefile.am.
 # @configure_input@
 
-# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+# Copyright (C) 1994-2020 Free Software Foundation, Inc.
 
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -362,6 +362,7 @@ am__set_TESTS_bases = \
   bases='$(TEST_LOGS)'; \
   bases=`for i in $$bases; do echo $$i; done | sed 's/\.log$$//'`; \
   bases=`echo $$bases`
+AM_TESTSUITE_SUMMARY_HEADER = ' for $(PACKAGE_STRING)'
 RECHECK_LOGS = $(TEST_LOGS)
 AM_RECURSIVE_TARGETS = check recheck
 TEST_SUITE_LOG = test-suite.log
@@ -646,6 +647,7 @@ DOC_STAMPS = setup-build.stamp scan-build.stamp sgml-build.stamp \
 	sgml.stamp html.stamp pdf.stamp
 
 SCANOBJ_FILES = \
+	$(DOC_MODULE).actions	 \
 	$(DOC_MODULE).args 	 \
 	$(DOC_MODULE).hierarchy  \
 	$(DOC_MODULE).interfaces \
@@ -859,7 +861,7 @@ $(TEST_SUITE_LOG): $(TEST_LOGS)
 	  test x"$$VERBOSE" = x || cat $(TEST_SUITE_LOG);		\
 	fi;								\
 	echo "$${col}$$br$${std}"; 					\
-	echo "$${col}Testsuite summary for $(PACKAGE_STRING)$${std}";	\
+	echo "$${col}Testsuite summary"$(AM_TESTSUITE_SUMMARY_HEADER)"$${std}";	\
 	echo "$${col}$$br$${std}"; 					\
 	create_testsuite_report --maybe-color;				\
 	echo "$$col$$br$$std";						\
diff --git a/docs/reference/html/ch01.html b/docs/reference/html/ch01.html
index b778a07..701caf8 100644
--- a/docs/reference/html/ch01.html
+++ b/docs/reference/html/ch01.html
@@ -3,12 +3,12 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>IPTC Data Manipulation: libiptcdata Reference Manual</title>
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
+<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
 <link rel="home" href="index.html" title="libiptcdata Reference Manual">
 <link rel="up" href="index.html" title="libiptcdata Reference Manual">
 <link rel="prev" href="iptc-i18n.html" title="Internationalization">
 <link rel="next" href="libiptcdata-data.html" title="data">
-<meta name="generator" content="GTK-Doc V1.28 (XML mode)">
+<meta name="generator" content="GTK-Doc V1.33.1 (XML mode)">
 <link rel="stylesheet" href="style.css" type="text/css">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
@@ -35,6 +35,6 @@
 </dl></div>
 </div>
 <div class="footer">
-<hr>Generated by GTK-Doc V1.28</div>
+<hr>Generated by GTK-Doc V1.33.1</div>
 </body>
 </html>
\ No newline at end of file
diff --git a/docs/reference/html/ch02.html b/docs/reference/html/ch02.html
index b7d6fd1..4dbfdd2 100644
--- a/docs/reference/html/ch02.html
+++ b/docs/reference/html/ch02.html
@@ -3,12 +3,12 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>Format-specific Functions: libiptcdata Reference Manual</title>
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
+<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
 <link rel="home" href="index.html" title="libiptcdata Reference Manual">
 <link rel="up" href="index.html" title="libiptcdata Reference Manual">
 <link rel="prev" href="libiptcdata-tag.html" title="tag">
 <link rel="next" href="libiptcdata-jpeg.html" title="jpeg">
-<meta name="generator" content="GTK-Doc V1.28 (XML mode)">
+<meta name="generator" content="GTK-Doc V1.33.1 (XML mode)">
 <link rel="stylesheet" href="style.css" type="text/css">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
@@ -27,6 +27,6 @@
 </dt></dl></div>
 </div>
 <div class="footer">
-<hr>Generated by GTK-Doc V1.28</div>
+<hr>Generated by GTK-Doc V1.33.1</div>
 </body>
 </html>
\ No newline at end of file
diff --git a/docs/reference/html/ch03.html b/docs/reference/html/ch03.html
index f0dcd35..cad67a3 100644
--- a/docs/reference/html/ch03.html
+++ b/docs/reference/html/ch03.html
@@ -3,12 +3,12 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>Helper Functions: libiptcdata Reference Manual</title>
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
+<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
 <link rel="home" href="index.html" title="libiptcdata Reference Manual">
 <link rel="up" href="index.html" title="libiptcdata Reference Manual">
 <link rel="prev" href="libiptcdata-jpeg.html" title="jpeg">
 <link rel="next" href="libiptcdata-utils.html" title="utils">
-<meta name="generator" content="GTK-Doc V1.28 (XML mode)">
+<meta name="generator" content="GTK-Doc V1.33.1 (XML mode)">
 <link rel="stylesheet" href="style.css" type="text/css">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
@@ -35,6 +35,6 @@
 </dl></div>
 </div>
 <div class="footer">
-<hr>Generated by GTK-Doc V1.28</div>
+<hr>Generated by GTK-Doc V1.33.1</div>
 </body>
 </html>
\ No newline at end of file
diff --git a/docs/reference/html/home.png b/docs/reference/html/home.png
index e80e202..3966a91 100644
Binary files a/docs/reference/html/home.png and b/docs/reference/html/home.png differ
diff --git a/docs/reference/html/index.html b/docs/reference/html/index.html
index f4ada6d..e5c9212 100644
--- a/docs/reference/html/index.html
+++ b/docs/reference/html/index.html
@@ -3,11 +3,11 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>libiptcdata Reference Manual: libiptcdata Reference Manual</title>
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
+<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
 <meta name="description" content="This manual documents the interfaces of the libiptcdata library and has some notes to help get you up to speed with using the library.">
 <link rel="home" href="index.html" title="libiptcdata Reference Manual">
 <link rel="next" href="iptc-about.html" title="About libiptcdata">
-<meta name="generator" content="GTK-Doc V1.28 (XML mode)">
+<meta name="generator" content="GTK-Doc V1.33.1 (XML mode)">
 <link rel="stylesheet" href="style.css" type="text/css">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
@@ -43,12 +43,9 @@
       are made aware to the documentation author, the names have been
       printed in caps or initial caps.</p>
 </div></div>
-<div><div class="abstract">
-<p class="title"><b>Abstract</b></p>
-<p>This manual documents the interfaces of the libiptcdata
+<div><div class="abstract"><p>This manual documents the interfaces of the libiptcdata
       library and has some notes to help get you up to speed
-      with using the library.</p>
-</div></div>
+      with using the library.</p></div></div>
 </div>
 <hr>
 </div>
@@ -99,6 +96,6 @@
 </dl></div>
 </div>
 <div class="footer">
-<hr>Generated by GTK-Doc V1.28</div>
+<hr>Generated by GTK-Doc V1.33.1</div>
 </body>
 </html>
\ No newline at end of file
diff --git a/docs/reference/html/iptc-about.html b/docs/reference/html/iptc-about.html
index 15da8fa..7e689b1 100644
--- a/docs/reference/html/iptc-about.html
+++ b/docs/reference/html/iptc-about.html
@@ -3,12 +3,12 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>About libiptcdata: libiptcdata Reference Manual</title>
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
+<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
 <link rel="home" href="index.html" title="libiptcdata Reference Manual">
 <link rel="up" href="index.html" title="libiptcdata Reference Manual">
 <link rel="prev" href="index.html" title="libiptcdata Reference Manual">
 <link rel="next" href="iptc-commandline.html" title="The IPTC Command-Line Utility">
-<meta name="generator" content="GTK-Doc V1.28 (XML mode)">
+<meta name="generator" content="GTK-Doc V1.33.1 (XML mode)">
 <link rel="stylesheet" href="style.css" type="text/css">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
@@ -82,6 +82,6 @@
 </div>
 </div>
 <div class="footer">
-<hr>Generated by GTK-Doc V1.28</div>
+<hr>Generated by GTK-Doc V1.33.1</div>
 </body>
 </html>
\ No newline at end of file
diff --git a/docs/reference/html/iptc-commandline.html b/docs/reference/html/iptc-commandline.html
index 11631a4..70b94d3 100644
--- a/docs/reference/html/iptc-commandline.html
+++ b/docs/reference/html/iptc-commandline.html
@@ -3,12 +3,12 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>The IPTC Command-Line Utility: libiptcdata Reference Manual</title>
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
+<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
 <link rel="home" href="index.html" title="libiptcdata Reference Manual">
 <link rel="up" href="index.html" title="libiptcdata Reference Manual">
 <link rel="prev" href="iptc-about.html" title="About libiptcdata">
 <link rel="next" href="iptc-overview.html" title="libiptcdata Overview">
-<meta name="generator" content="GTK-Doc V1.28 (XML mode)">
+<meta name="generator" content="GTK-Doc V1.33.1 (XML mode)">
 <link rel="stylesheet" href="style.css" type="text/css">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
@@ -89,6 +89,6 @@ Informative output:
 </div>
 </div>
 <div class="footer">
-<hr>Generated by GTK-Doc V1.28</div>
+<hr>Generated by GTK-Doc V1.33.1</div>
 </body>
 </html>
\ No newline at end of file
diff --git a/docs/reference/html/iptc-i18n.html b/docs/reference/html/iptc-i18n.html
index de5bf80..b630880 100644
--- a/docs/reference/html/iptc-i18n.html
+++ b/docs/reference/html/iptc-i18n.html
@@ -3,12 +3,12 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>Internationalization: libiptcdata Reference Manual</title>
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
+<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
 <link rel="home" href="index.html" title="libiptcdata Reference Manual">
 <link rel="up" href="index.html" title="libiptcdata Reference Manual">
 <link rel="prev" href="iptc-libjpeg.html" title="libjpeg Interoperability">
 <link rel="next" href="ch01.html" title="IPTC Data Manipulation">
-<meta name="generator" content="GTK-Doc V1.28 (XML mode)">
+<meta name="generator" content="GTK-Doc V1.33.1 (XML mode)">
 <link rel="stylesheet" href="style.css" type="text/css">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
@@ -91,6 +91,6 @@
 </div>
 </div>
 <div class="footer">
-<hr>Generated by GTK-Doc V1.28</div>
+<hr>Generated by GTK-Doc V1.33.1</div>
 </body>
 </html>
\ No newline at end of file
diff --git a/docs/reference/html/iptc-libjpeg.html b/docs/reference/html/iptc-libjpeg.html
index 5ab4ed3..a7d8bba 100644
--- a/docs/reference/html/iptc-libjpeg.html
+++ b/docs/reference/html/iptc-libjpeg.html
@@ -3,12 +3,12 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>libjpeg Interoperability: libiptcdata Reference Manual</title>
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
+<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
 <link rel="home" href="index.html" title="libiptcdata Reference Manual">
 <link rel="up" href="index.html" title="libiptcdata Reference Manual">
 <link rel="prev" href="iptc-overview.html" title="libiptcdata Overview">
 <link rel="next" href="iptc-i18n.html" title="Internationalization">
-<meta name="generator" content="GTK-Doc V1.28 (XML mode)">
+<meta name="generator" content="GTK-Doc V1.33.1 (XML mode)">
 <link rel="stylesheet" href="style.css" type="text/css">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
@@ -87,6 +87,6 @@ fclose (infile);
 </div>
 </div>
 <div class="footer">
-<hr>Generated by GTK-Doc V1.28</div>
+<hr>Generated by GTK-Doc V1.33.1</div>
 </body>
 </html>
\ No newline at end of file
diff --git a/docs/reference/html/iptc-overview.html b/docs/reference/html/iptc-overview.html
index 7e4ea55..497b5e2 100644
--- a/docs/reference/html/iptc-overview.html
+++ b/docs/reference/html/iptc-overview.html
@@ -3,12 +3,12 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>libiptcdata Overview: libiptcdata Reference Manual</title>
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
+<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
 <link rel="home" href="index.html" title="libiptcdata Reference Manual">
 <link rel="up" href="index.html" title="libiptcdata Reference Manual">
 <link rel="prev" href="iptc-commandline.html" title="The IPTC Command-Line Utility">
 <link rel="next" href="iptc-libjpeg.html" title="libjpeg Interoperability">
-<meta name="generator" content="GTK-Doc V1.28 (XML mode)">
+<meta name="generator" content="GTK-Doc V1.33.1 (XML mode)">
 <link rel="stylesheet" href="style.css" type="text/css">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
@@ -429,6 +429,6 @@ fprintf (stderr, "Image saved\n");
 </div>
 </div>
 <div class="footer">
-<hr>Generated by GTK-Doc V1.28</div>
+<hr>Generated by GTK-Doc V1.33.1</div>
 </body>
 </html>
\ No newline at end of file
diff --git a/docs/reference/html/left-insensitive.png b/docs/reference/html/left-insensitive.png
index fea007e..2cd8c16 100644
Binary files a/docs/reference/html/left-insensitive.png and b/docs/reference/html/left-insensitive.png differ
diff --git a/docs/reference/html/left.png b/docs/reference/html/left.png
index 193905f..1ca1664 100644
Binary files a/docs/reference/html/left.png and b/docs/reference/html/left.png differ
diff --git a/docs/reference/html/libiptcdata-data.html b/docs/reference/html/libiptcdata-data.html
index 41f0860..5f224eb 100644
--- a/docs/reference/html/libiptcdata-data.html
+++ b/docs/reference/html/libiptcdata-data.html
@@ -3,12 +3,12 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>data: libiptcdata Reference Manual</title>
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
+<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
 <link rel="home" href="index.html" title="libiptcdata Reference Manual">
 <link rel="up" href="ch01.html" title="IPTC Data Manipulation">
 <link rel="prev" href="ch01.html" title="IPTC Data Manipulation">
 <link rel="next" href="libiptcdata-dataset.html" title="dataset">
-<meta name="generator" content="GTK-Doc V1.28 (XML mode)">
+<meta name="generator" content="GTK-Doc V1.33.1 (XML mode)">
 <link rel="stylesheet" href="style.css" type="text/css">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
@@ -35,8 +35,8 @@
 <a name="libiptcdata-data.functions"></a><h2>Functions</h2>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
-<col width="150px" class="functions_return">
-<col class="functions_name">
+<col width="150px" class="functions_proto_type">
+<col class="functions_proto_name">
 </colgroup>
 <tbody>
 <tr>
@@ -254,8 +254,8 @@
 <a name="libiptcdata-data.other"></a><h2>Types and Values</h2>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
-<col width="150px" class="name">
-<col class="description">
+<col width="150px" class="other_proto_type">
+<col class="other_proto_name">
 </colgroup>
 <tbody>
 <tr>
@@ -1300,6 +1300,6 @@ object.</p>
 </div>
 </div>
 <div class="footer">
-<hr>Generated by GTK-Doc V1.28</div>
+<hr>Generated by GTK-Doc V1.33.1</div>
 </body>
 </html>
\ No newline at end of file
diff --git a/docs/reference/html/libiptcdata-dataset.html b/docs/reference/html/libiptcdata-dataset.html
index 28a5723..58480b4 100644
--- a/docs/reference/html/libiptcdata-dataset.html
+++ b/docs/reference/html/libiptcdata-dataset.html
@@ -3,12 +3,12 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>dataset: libiptcdata Reference Manual</title>
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
+<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
 <link rel="home" href="index.html" title="libiptcdata Reference Manual">
 <link rel="up" href="ch01.html" title="IPTC Data Manipulation">
 <link rel="prev" href="libiptcdata-data.html" title="data">
 <link rel="next" href="libiptcdata-tag.html" title="tag">
-<meta name="generator" content="GTK-Doc V1.28 (XML mode)">
+<meta name="generator" content="GTK-Doc V1.33.1 (XML mode)">
 <link rel="stylesheet" href="style.css" type="text/css">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
@@ -35,8 +35,8 @@
 <a name="libiptcdata-dataset.functions"></a><h2>Functions</h2>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
-<col width="150px" class="functions_return">
-<col class="functions_name">
+<col width="150px" class="functions_proto_type">
+<col class="functions_proto_name">
 </colgroup>
 <tbody>
 <tr>
@@ -188,8 +188,8 @@
 <a name="libiptcdata-dataset.other"></a><h2>Types and Values</h2>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
-<col width="150px" class="name">
-<col class="description">
+<col width="150px" class="other_proto_type">
+<col class="other_proto_name">
 </colgroup>
 <tbody>
 <tr>
@@ -954,6 +954,6 @@ standard output.</p>
 </div>
 </div>
 <div class="footer">
-<hr>Generated by GTK-Doc V1.28</div>
+<hr>Generated by GTK-Doc V1.33.1</div>
 </body>
 </html>
\ No newline at end of file
diff --git a/docs/reference/html/libiptcdata-jpeg.html b/docs/reference/html/libiptcdata-jpeg.html
index 4e61242..dafac86 100644
--- a/docs/reference/html/libiptcdata-jpeg.html
+++ b/docs/reference/html/libiptcdata-jpeg.html
@@ -3,12 +3,12 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>jpeg: libiptcdata Reference Manual</title>
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
+<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
 <link rel="home" href="index.html" title="libiptcdata Reference Manual">
 <link rel="up" href="ch02.html" title="Format-specific Functions">
 <link rel="prev" href="ch02.html" title="Format-specific Functions">
 <link rel="next" href="ch03.html" title="Helper Functions">
-<meta name="generator" content="GTK-Doc V1.28 (XML mode)">
+<meta name="generator" content="GTK-Doc V1.33.1 (XML mode)">
 <link rel="stylesheet" href="style.css" type="text/css">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
@@ -35,8 +35,8 @@
 <a name="libiptcdata-jpeg.functions"></a><h2>Functions</h2>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
-<col width="150px" class="functions_return">
-<col class="functions_name">
+<col width="150px" class="functions_proto_type">
+<col class="functions_proto_name">
 </colgroup>
 <tbody>
 <tr>
@@ -309,11 +309,8 @@ undefined.</p>
 </div>
 </div>
 </div>
-<div class="refsect1">
-<a name="libiptcdata-jpeg.other_details"></a><h2>Types and Values</h2>
-</div>
 </div>
 <div class="footer">
-<hr>Generated by GTK-Doc V1.28</div>
+<hr>Generated by GTK-Doc V1.33.1</div>
 </body>
 </html>
\ No newline at end of file
diff --git a/docs/reference/html/libiptcdata-log.html b/docs/reference/html/libiptcdata-log.html
index 1f199cc..402bcd0 100644
--- a/docs/reference/html/libiptcdata-log.html
+++ b/docs/reference/html/libiptcdata-log.html
@@ -3,11 +3,11 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>log: libiptcdata Reference Manual</title>
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
+<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
 <link rel="home" href="index.html" title="libiptcdata Reference Manual">
 <link rel="up" href="ch03.html" title="Helper Functions">
 <link rel="prev" href="libiptcdata-mem.html" title="mem">
-<meta name="generator" content="GTK-Doc V1.28 (XML mode)">
+<meta name="generator" content="GTK-Doc V1.33.1 (XML mode)">
 <link rel="stylesheet" href="style.css" type="text/css">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
@@ -34,8 +34,8 @@
 <a name="libiptcdata-log.functions"></a><h2>Functions</h2>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
-<col width="150px" class="functions_return">
-<col class="functions_name">
+<col width="150px" class="functions_proto_type">
+<col class="functions_proto_name">
 </colgroup>
 <tbody>
 <tr>
@@ -129,8 +129,8 @@
 <a name="libiptcdata-log.other"></a><h2>Types and Values</h2>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
-<col width="150px" class="name">
-<col class="description">
+<col width="150px" class="other_proto_type">
+<col class="other_proto_name">
 </colgroup>
 <tbody>
 <tr>
@@ -270,6 +270,6 @@ iptc_log (<em class="parameter"><code><a class="link" href="libiptcdata-log.html
 </div>
 </div>
 <div class="footer">
-<hr>Generated by GTK-Doc V1.28</div>
+<hr>Generated by GTK-Doc V1.33.1</div>
 </body>
 </html>
\ No newline at end of file
diff --git a/docs/reference/html/libiptcdata-mem.html b/docs/reference/html/libiptcdata-mem.html
index 839ff0d..cb56c88 100644
--- a/docs/reference/html/libiptcdata-mem.html
+++ b/docs/reference/html/libiptcdata-mem.html
@@ -3,12 +3,12 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>mem: libiptcdata Reference Manual</title>
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
+<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
 <link rel="home" href="index.html" title="libiptcdata Reference Manual">
 <link rel="up" href="ch03.html" title="Helper Functions">
 <link rel="prev" href="libiptcdata-utils.html" title="utils">
 <link rel="next" href="libiptcdata-log.html" title="log">
-<meta name="generator" content="GTK-Doc V1.28 (XML mode)">
+<meta name="generator" content="GTK-Doc V1.33.1 (XML mode)">
 <link rel="stylesheet" href="style.css" type="text/css">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
@@ -35,8 +35,8 @@
 <a name="libiptcdata-mem.functions"></a><h2>Functions</h2>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
-<col width="150px" class="functions_return">
-<col class="functions_name">
+<col width="150px" class="functions_proto_type">
+<col class="functions_proto_name">
 </colgroup>
 <tbody>
 <tr>
@@ -126,8 +126,8 @@
 <a name="libiptcdata-mem.other"></a><h2>Types and Values</h2>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
-<col width="150px" class="name">
-<col class="description">
+<col width="150px" class="other_proto_type">
+<col class="other_proto_name">
 </colgroup>
 <tbody><tr>
 <td class="datatype_keyword"> </td>
@@ -216,6 +216,6 @@ iptc_mem_new_default (<em class="parameter"><code><span class="type">void</span>
 </div>
 </div>
 <div class="footer">
-<hr>Generated by GTK-Doc V1.28</div>
+<hr>Generated by GTK-Doc V1.33.1</div>
 </body>
 </html>
\ No newline at end of file
diff --git a/docs/reference/html/libiptcdata-tag.html b/docs/reference/html/libiptcdata-tag.html
index 611abf9..9e759a7 100644
--- a/docs/reference/html/libiptcdata-tag.html
+++ b/docs/reference/html/libiptcdata-tag.html
@@ -3,12 +3,12 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>tag: libiptcdata Reference Manual</title>
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
+<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
 <link rel="home" href="index.html" title="libiptcdata Reference Manual">
 <link rel="up" href="ch01.html" title="IPTC Data Manipulation">
 <link rel="prev" href="libiptcdata-dataset.html" title="dataset">
 <link rel="next" href="ch02.html" title="Format-specific Functions">
-<meta name="generator" content="GTK-Doc V1.28 (XML mode)">
+<meta name="generator" content="GTK-Doc V1.33.1 (XML mode)">
 <link rel="stylesheet" href="style.css" type="text/css">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
@@ -35,8 +35,8 @@
 <a name="libiptcdata-tag.functions"></a><h2>Functions</h2>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
-<col width="150px" class="functions_return">
-<col class="functions_name">
+<col width="150px" class="functions_proto_type">
+<col class="functions_proto_name">
 </colgroup>
 <tbody>
 <tr>
@@ -92,8 +92,8 @@
 <a name="libiptcdata-tag.other"></a><h2>Types and Values</h2>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
-<col width="150px" class="name">
-<col class="description">
+<col width="150px" class="other_proto_type">
+<col class="other_proto_name">
 </colgroup>
 <tbody>
 <tr>
@@ -950,6 +950,6 @@ tag variables.</p>
 </div>
 </div>
 <div class="footer">
-<hr>Generated by GTK-Doc V1.28</div>
+<hr>Generated by GTK-Doc V1.33.1</div>
 </body>
 </html>
\ No newline at end of file
diff --git a/docs/reference/html/libiptcdata-utils.html b/docs/reference/html/libiptcdata-utils.html
index 86c9c8a..0d72425 100644
--- a/docs/reference/html/libiptcdata-utils.html
+++ b/docs/reference/html/libiptcdata-utils.html
@@ -3,12 +3,12 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>utils: libiptcdata Reference Manual</title>
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
+<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
 <link rel="home" href="index.html" title="libiptcdata Reference Manual">
 <link rel="up" href="ch03.html" title="Helper Functions">
 <link rel="prev" href="ch03.html" title="Helper Functions">
 <link rel="next" href="libiptcdata-mem.html" title="mem">
-<meta name="generator" content="GTK-Doc V1.28 (XML mode)">
+<meta name="generator" content="GTK-Doc V1.33.1 (XML mode)">
 <link rel="stylesheet" href="style.css" type="text/css">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
@@ -35,8 +35,8 @@
 <a name="libiptcdata-utils.functions"></a><h2>Functions</h2>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
-<col width="150px" class="functions_return">
-<col class="functions_name">
+<col width="150px" class="functions_proto_type">
+<col class="functions_proto_name">
 </colgroup>
 <tbody>
 <tr>
@@ -100,8 +100,8 @@
 <a name="libiptcdata-utils.other"></a><h2>Types and Values</h2>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
-<col width="150px" class="name">
-<col class="description">
+<col width="150px" class="other_proto_type">
+<col class="other_proto_name">
 </colgroup>
 <tbody>
 <tr>
@@ -247,6 +247,6 @@ iptc_set_slong (<em class="parameter"><code>unsigned <span class="type">char</sp
 </div>
 </div>
 <div class="footer">
-<hr>Generated by GTK-Doc V1.28</div>
+<hr>Generated by GTK-Doc V1.33.1</div>
 </body>
 </html>
\ No newline at end of file
diff --git a/docs/reference/html/right-insensitive.png b/docs/reference/html/right-insensitive.png
index ef7d866..763208d 100644
Binary files a/docs/reference/html/right-insensitive.png and b/docs/reference/html/right-insensitive.png differ
diff --git a/docs/reference/html/right.png b/docs/reference/html/right.png
index 07fefed..eb90dd4 100644
Binary files a/docs/reference/html/right.png and b/docs/reference/html/right.png differ
diff --git a/docs/reference/html/style.css b/docs/reference/html/style.css
index 4be4ede..41781ba 100644
--- a/docs/reference/html/style.css
+++ b/docs/reference/html/style.css
@@ -61,18 +61,6 @@ a:hover
   color: #729fcf;
 }
 
-div.informaltable table
-{
-  border-collapse: separate;
-  border-spacing: 1em 0.3em;
-  border: none;
-}
-
-div.informaltable table td, div.informaltable table th
-{
-  vertical-align: top;
-}
-
 .function_type,
 .variable_type,
 .property_type,
@@ -127,6 +115,7 @@ td p
   margin: 0.25em;
 }
 
+div.informaltable table[border="1"],
 div.table table
 {
   border-collapse: collapse;
@@ -135,6 +124,8 @@ div.table table
   border: solid 1px #babdb6;
 }
 
+div.informaltable table[border="1"] td,
+div.informaltable table th,
 div.table table td, div.table table th
 {
   /* tango:aluminium 3 */
@@ -143,6 +134,7 @@ div.table table td, div.table table th
   vertical-align: top;
 }
 
+div.informaltable table[border="1"] th,
 div.table table th
 {
   /* tango:aluminium 2 */
@@ -293,29 +285,11 @@ h2 .extralinks, h3 .extralinks
   font-weight: normal;
 }
 
-acronym,abbr 
+acronym,abbr
 {
   border-bottom: 1px dotted gray;
 }
 
-/* code listings */
-
-.listing_code .programlisting .normal,
-.listing_code .programlisting .normal a,
-.listing_code .programlisting .number,
-.listing_code .programlisting .cbracket,
-.listing_code .programlisting .symbol     { color: #555753; }
-.listing_code .programlisting .comment,
-.listing_code .programlisting .linenum    { color: #babdb6; } /* tango: aluminium 3 */
-.listing_code .programlisting .function,
-.listing_code .programlisting .function a,
-.listing_code .programlisting .preproc    { color: #204a87; } /* tango: sky blue 3  */
-.listing_code .programlisting .string     { color: #ad7fa8; } /* tango: plum */
-.listing_code .programlisting .keyword,
-.listing_code .programlisting .usertype,
-.listing_code .programlisting .type,
-.listing_code .programlisting .type a     { color: #4e9a06; } /* tango: chameleon 3  */
-
 .listing_frame {
   /* tango:sky blue 1 */
   border: solid 1px #729fcf;
@@ -481,3 +455,76 @@ acronym,abbr
   }
 }
 
+pre { line-height: 125%; margin: 0; }
+td.linenos pre { color: #000000; background-color: #f0f0f0; padding: 0 5px 0 5px; }
+span.linenos { color: #000000; background-color: #f0f0f0; padding: 0 5px 0 5px; }
+td.linenos pre.special { color: #000000; background-color: #ffffc0; padding: 0 5px 0 5px; }
+span.linenos.special { color: #000000; background-color: #ffffc0; padding: 0 5px 0 5px; }
+.hll { background-color: #ffffcc }
+.c { color: #408080; font-style: italic } /* Comment */
+.err { border: 1px solid #FF0000 } /* Error */
+.k { color: #008000; font-weight: bold } /* Keyword */
+.o { color: #666666 } /* Operator */
+.ch { color: #408080; font-style: italic } /* Comment.Hashbang */
+.cm { color: #408080; font-style: italic } /* Comment.Multiline */
+.cp { color: #BC7A00 } /* Comment.Preproc */
+.cpf { color: #408080; font-style: italic } /* Comment.PreprocFile */
+.c1 { color: #408080; font-style: italic } /* Comment.Single */
+.cs { color: #408080; font-style: italic } /* Comment.Special */
+.gd { color: #A00000 } /* Generic.Deleted */
+.ge { font-style: italic } /* Generic.Emph */
+.gr { color: #FF0000 } /* Generic.Error */
+.gh { color: #000080; font-weight: bold } /* Generic.Heading */
+.gi { color: #00A000 } /* Generic.Inserted */
+.go { color: #888888 } /* Generic.Output */
+.gp { color: #000080; font-weight: bold } /* Generic.Prompt */
+.gs { font-weight: bold } /* Generic.Strong */
+.gu { color: #800080; font-weight: bold } /* Generic.Subheading */
+.gt { color: #0044DD } /* Generic.Traceback */
+.kc { color: #008000; font-weight: bold } /* Keyword.Constant */
+.kd { color: #008000; font-weight: bold } /* Keyword.Declaration */
+.kn { color: #008000; font-weight: bold } /* Keyword.Namespace */
+.kp { color: #008000 } /* Keyword.Pseudo */
+.kr { color: #008000; font-weight: bold } /* Keyword.Reserved */
+.kt { color: #B00040 } /* Keyword.Type */
+.m { color: #666666 } /* Literal.Number */
+.s { color: #BA2121 } /* Literal.String */
+.na { color: #7D9029 } /* Name.Attribute */
+.nb { color: #008000 } /* Name.Builtin */
+.nc { color: #0000FF; font-weight: bold } /* Name.Class */
+.no { color: #880000 } /* Name.Constant */
+.nd { color: #AA22FF } /* Name.Decorator */
+.ni { color: #999999; font-weight: bold } /* Name.Entity */
+.ne { color: #D2413A; font-weight: bold } /* Name.Exception */
+.nf { color: #0000FF } /* Name.Function */
+.nl { color: #A0A000 } /* Name.Label */
+.nn { color: #0000FF; font-weight: bold } /* Name.Namespace */
+.nt { color: #008000; font-weight: bold } /* Name.Tag */
+.nv { color: #19177C } /* Name.Variable */
+.ow { color: #AA22FF; font-weight: bold } /* Operator.Word */
+.w { color: #bbbbbb } /* Text.Whitespace */
+.mb { color: #666666 } /* Literal.Number.Bin */
+.mf { color: #666666 } /* Literal.Number.Float */
+.mh { color: #666666 } /* Literal.Number.Hex */
+.mi { color: #666666 } /* Literal.Number.Integer */
+.mo { color: #666666 } /* Literal.Number.Oct */
+.sa { color: #BA2121 } /* Literal.String.Affix */
+.sb { color: #BA2121 } /* Literal.String.Backtick */
+.sc { color: #BA2121 } /* Literal.String.Char */
+.dl { color: #BA2121 } /* Literal.String.Delimiter */
+.sd { color: #BA2121; font-style: italic } /* Literal.String.Doc */
+.s2 { color: #BA2121 } /* Literal.String.Double */
+.se { color: #BB6622; font-weight: bold } /* Literal.String.Escape */
+.sh { color: #BA2121 } /* Literal.String.Heredoc */
+.si { color: #BB6688; font-weight: bold } /* Literal.String.Interpol */
+.sx { color: #008000 } /* Literal.String.Other */
+.sr { color: #BB6688 } /* Literal.String.Regex */
+.s1 { color: #BA2121 } /* Literal.String.Single */
+.ss { color: #19177C } /* Literal.String.Symbol */
+.bp { color: #008000 } /* Name.Builtin.Pseudo */
+.fm { color: #0000FF } /* Name.Function.Magic */
+.vc { color: #19177C } /* Name.Variable.Class */
+.vg { color: #19177C } /* Name.Variable.Global */
+.vi { color: #19177C } /* Name.Variable.Instance */
+.vm { color: #19177C } /* Name.Variable.Magic */
+.il { color: #666666 } /* Literal.Number.Integer.Long */
\ No newline at end of file
diff --git a/docs/reference/html/up-insensitive.png b/docs/reference/html/up-insensitive.png
index 99528f8..478700c 100644
Binary files a/docs/reference/html/up-insensitive.png and b/docs/reference/html/up-insensitive.png differ
diff --git a/docs/reference/html/up.png b/docs/reference/html/up.png
index aa6a2ae..636d50d 100644
Binary files a/docs/reference/html/up.png and b/docs/reference/html/up.png differ
diff --git a/gtk-doc.make b/gtk-doc.make
index 7d9a27f..c673175 100644
--- a/gtk-doc.make
+++ b/gtk-doc.make
@@ -57,6 +57,7 @@ DOC_STAMPS=setup-build.stamp scan-build.stamp sgml-build.stamp \
 	sgml.stamp html.stamp pdf.stamp
 
 SCANOBJ_FILES = 		 \
+	$(DOC_MODULE).actions	 \
 	$(DOC_MODULE).args 	 \
 	$(DOC_MODULE).hierarchy  \
 	$(DOC_MODULE).interfaces \
diff --git a/install-sh b/install-sh
index 8175c64..ec298b5 100755
--- a/install-sh
+++ b/install-sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # install - install a program, script, or datafile
 
-scriptversion=2018-03-11.20; # UTC
+scriptversion=2020-11-14.01; # UTC
 
 # This originates from X11R5 (mit/util/scripts/install.sh), which was
 # later released in X11R6 (xc/config/util/install.sh) with the
@@ -69,6 +69,11 @@ posix_mkdir=
 # Desired mode of installed file.
 mode=0755
 
+# Create dirs (including intermediate dirs) using mode 755.
+# This is like GNU 'install' as of coreutils 8.32 (2020).
+mkdir_umask=22
+
+backupsuffix=
 chgrpcmd=
 chmodcmd=$chmodprog
 chowncmd=
@@ -99,18 +104,28 @@ Options:
      --version  display version info and exit.
 
   -c            (ignored)
-  -C            install only if different (preserve the last data modification time)
+  -C            install only if different (preserve data modification time)
   -d            create directories instead of installing files.
   -g GROUP      $chgrpprog installed files to GROUP.
   -m MODE       $chmodprog installed files to MODE.
   -o USER       $chownprog installed files to USER.
+  -p            pass -p to $cpprog.
   -s            $stripprog installed files.
+  -S SUFFIX     attempt to back up existing files, with suffix SUFFIX.
   -t DIRECTORY  install into DIRECTORY.
   -T            report an error if DSTFILE is a directory.
 
 Environment variables override the default commands:
   CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
   RMPROG STRIPPROG
+
+By default, rm is invoked with -f; when overridden with RMPROG,
+it's up to you to specify -f if you want it.
+
+If -S is not specified, no backups are attempted.
+
+Email bug reports to bug-automake@gnu.org.
+Automake home page: https://www.gnu.org/software/automake/
 "
 
 while test $# -ne 0; do
@@ -137,8 +152,13 @@ while test $# -ne 0; do
     -o) chowncmd="$chownprog $2"
         shift;;
 
+    -p) cpprog="$cpprog -p";;
+
     -s) stripcmd=$stripprog;;
 
+    -S) backupsuffix="$2"
+        shift;;
+
     -t)
         is_target_a_directory=always
         dst_arg=$2
@@ -255,6 +275,10 @@ do
     dstdir=$dst
     test -d "$dstdir"
     dstdir_status=$?
+    # Don't chown directories that already exist.
+    if test $dstdir_status = 0; then
+      chowncmd=""
+    fi
   else
 
     # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
@@ -301,22 +325,6 @@ do
   if test $dstdir_status != 0; then
     case $posix_mkdir in
       '')
-        # Create intermediate dirs using mode 755 as modified by the umask.
-        # This is like FreeBSD 'install' as of 1997-10-28.
-        umask=`umask`
-        case $stripcmd.$umask in
-          # Optimize common cases.
-          *[2367][2367]) mkdir_umask=$umask;;
-          .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
-
-          *[0-7])
-            mkdir_umask=`expr $umask + 22 \
-              - $umask % 100 % 40 + $umask % 20 \
-              - $umask % 10 % 4 + $umask % 2
-            `;;
-          *) mkdir_umask=$umask,go-w;;
-        esac
-
         # With -d, create the new directory with the user-specified mode.
         # Otherwise, rely on $mkdir_umask.
         if test -n "$dir_arg"; then
@@ -326,52 +334,49 @@ do
         fi
 
         posix_mkdir=false
-        case $umask in
-          *[123567][0-7][0-7])
-            # POSIX mkdir -p sets u+wx bits regardless of umask, which
-            # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
-            ;;
-          *)
-            # Note that $RANDOM variable is not portable (e.g. dash);  Use it
-            # here however when possible just to lower collision chance.
-            tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
-
-            trap 'ret=$?; rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null; exit $ret' 0
-
-            # Because "mkdir -p" follows existing symlinks and we likely work
-            # directly in world-writeable /tmp, make sure that the '$tmpdir'
-            # directory is successfully created first before we actually test
-            # 'mkdir -p' feature.
-            if (umask $mkdir_umask &&
-                $mkdirprog $mkdir_mode "$tmpdir" &&
-                exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1
-            then
-              if test -z "$dir_arg" || {
-                   # Check for POSIX incompatibilities with -m.
-                   # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
-                   # other-writable bit of parent directory when it shouldn't.
-                   # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
-                   test_tmpdir="$tmpdir/a"
-                   ls_ld_tmpdir=`ls -ld "$test_tmpdir"`
-                   case $ls_ld_tmpdir in
-                     d????-?r-*) different_mode=700;;
-                     d????-?--*) different_mode=755;;
-                     *) false;;
-                   esac &&
-                   $mkdirprog -m$different_mode -p -- "$test_tmpdir" && {
-                     ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"`
-                     test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
-                   }
-                 }
-              then posix_mkdir=:
-              fi
-              rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir"
-            else
-              # Remove any dirs left behind by ancient mkdir implementations.
-              rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null
-            fi
-            trap '' 0;;
-        esac;;
+	# The $RANDOM variable is not portable (e.g., dash).  Use it
+	# here however when possible just to lower collision chance.
+	tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
+
+	trap '
+	  ret=$?
+	  rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null
+	  exit $ret
+	' 0
+
+	# Because "mkdir -p" follows existing symlinks and we likely work
+	# directly in world-writeable /tmp, make sure that the '$tmpdir'
+	# directory is successfully created first before we actually test
+	# 'mkdir -p'.
+	if (umask $mkdir_umask &&
+	    $mkdirprog $mkdir_mode "$tmpdir" &&
+	    exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1
+	then
+	  if test -z "$dir_arg" || {
+	       # Check for POSIX incompatibilities with -m.
+	       # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
+	       # other-writable bit of parent directory when it shouldn't.
+	       # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
+	       test_tmpdir="$tmpdir/a"
+	       ls_ld_tmpdir=`ls -ld "$test_tmpdir"`
+	       case $ls_ld_tmpdir in
+		 d????-?r-*) different_mode=700;;
+		 d????-?--*) different_mode=755;;
+		 *) false;;
+	       esac &&
+	       $mkdirprog -m$different_mode -p -- "$test_tmpdir" && {
+		 ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"`
+		 test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
+	       }
+	     }
+	  then posix_mkdir=:
+	  fi
+	  rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir"
+	else
+	  # Remove any dirs left behind by ancient mkdir implementations.
+	  rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null
+	fi
+	trap '' 0;;
     esac
 
     if
@@ -382,7 +387,7 @@ do
     then :
     else
 
-      # The umask is ridiculous, or mkdir does not conform to POSIX,
+      # mkdir does not conform to POSIX,
       # or it failed possibly due to a race condition.  Create the
       # directory the slow way, step by step, checking for races as we go.
 
@@ -411,7 +416,7 @@ do
           prefixes=
         else
           if $posix_mkdir; then
-            (umask=$mkdir_umask &&
+            (umask $mkdir_umask &&
              $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
             # Don't fail if two instances are running concurrently.
             test -d "$prefix" || exit 1
@@ -451,7 +456,18 @@ do
     trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
 
     # Copy the file name to the temp name.
-    (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
+    (umask $cp_umask &&
+     { test -z "$stripcmd" || {
+	 # Create $dsttmp read-write so that cp doesn't create it read-only,
+	 # which would cause strip to fail.
+	 if test -z "$doit"; then
+	   : >"$dsttmp" # No need to fork-exec 'touch'.
+	 else
+	   $doit touch "$dsttmp"
+	 fi
+       }
+     } &&
+     $doit_exec $cpprog "$src" "$dsttmp") &&
 
     # and set any options; do chmod last to preserve setuid bits.
     #
@@ -477,6 +493,13 @@ do
     then
       rm -f "$dsttmp"
     else
+      # If $backupsuffix is set, and the file being installed
+      # already exists, attempt a backup.  Don't worry if it fails,
+      # e.g., if mv doesn't support -f.
+      if test -n "$backupsuffix" && test -f "$dst"; then
+        $doit $mvcmd -f "$dst" "$dst$backupsuffix" 2>/dev/null
+      fi
+
       # Rename the file to the real destination.
       $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
 
@@ -491,9 +514,9 @@ do
         # file should still install successfully.
         {
           test ! -f "$dst" ||
-          $doit $rmcmd -f "$dst" 2>/dev/null ||
+          $doit $rmcmd "$dst" 2>/dev/null ||
           { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
-            { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
+            { $doit $rmcmd "$rmtmp" 2>/dev/null; :; }
           } ||
           { echo "$0: cannot unlink or rename $dst" >&2
             (exit 1); exit 1
diff --git a/iptc/Makefile.in b/iptc/Makefile.in
index 0040fe1..d3f1d15 100644
--- a/iptc/Makefile.in
+++ b/iptc/Makefile.in
@@ -1,7 +1,7 @@
-# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# Makefile.in generated by automake 1.16.3 from Makefile.am.
 # @configure_input@
 
-# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+# Copyright (C) 1994-2020 Free Software Foundation, Inc.
 
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
diff --git a/iptc/po/de.po b/iptc/po/de.po
index 5bfb21e..b05e52f 100644
--- a/iptc/po/de.po
+++ b/iptc/po/de.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: libiptcdata 1.0.2+libtool01-2_iptc\n"
 "Report-Msgid-Bugs-To: dcm@acm.org\n"
-"POT-Creation-Date: 2018-09-12 21:49+1000\n"
+"POT-Creation-Date: 2021-06-08 15:08+0000\n"
 "PO-Revision-Date: 2008-12-17 10:27+GMT\n"
 "Last-Translator: Chris Leick <c.leick@vollbio.de>\n"
 "Language-Team: German <debian-l10n-german@lists.debian.org>\n"
diff --git a/iptc/po/iptc.pot b/iptc/po/iptc.pot
index c2f5e26..1b82659 100644
--- a/iptc/po/iptc.pot
+++ b/iptc/po/iptc.pot
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: dcm@acm.org\n"
-"POT-Creation-Date: 2018-09-12 21:49+1000\n"
+"POT-Creation-Date: 2021-06-08 15:08+0000\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
diff --git a/iptc/po/it.po b/iptc/po/it.po
index 77f8333..8add663 100644
--- a/iptc/po/it.po
+++ b/iptc/po/it.po
@@ -17,7 +17,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: iptc\n"
 "Report-Msgid-Bugs-To: dcm@acm.org\n"
-"POT-Creation-Date: 2018-09-12 21:49+1000\n"
+"POT-Creation-Date: 2021-06-08 15:08+0000\n"
 "PO-Revision-Date: 2009-06-17 18:51+0200\n"
 "Last-Translator: Milo Casagrande <milo@ubuntu.com>\n"
 "Language-Team: Italian <tp@lists.linux.it>\n"
diff --git a/libiptcdata/Makefile.in b/libiptcdata/Makefile.in
index 9efa730..a3c47ee 100644
--- a/libiptcdata/Makefile.in
+++ b/libiptcdata/Makefile.in
@@ -1,7 +1,7 @@
-# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# Makefile.in generated by automake 1.16.3 from Makefile.am.
 # @configure_input@
 
-# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+# Copyright (C) 1994-2020 Free Software Foundation, Inc.
 
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
diff --git a/ltmain.sh b/ltmain.sh
old mode 100644
new mode 100755
index e4eda6d..21e5e07
--- a/ltmain.sh
+++ b/ltmain.sh
@@ -31,7 +31,7 @@
 
 PROGRAM=libtool
 PACKAGE=libtool
-VERSION="2.4.6 Debian-2.4.6-2.1"
+VERSION="2.4.6 Debian-2.4.6-15"
 package_revision=2.4.6
 
 
@@ -64,7 +64,7 @@ package_revision=2.4.6
 # libraries, which are installed to $pkgauxdir.
 
 # Set a version string for this script.
-scriptversion=2015-10-12.13; # UTC
+scriptversion=2015-01-20.17; # UTC
 
 # General shell script boiler plate, and helper functions.
 # Written by Gary V. Vaughan, 2004
@@ -387,7 +387,7 @@ EXIT_SKIP=77	  # $? = 77 is used to indicate a skipped test to automake.
 # putting '$debug_cmd' at the start of all your functions, you can get
 # bash to show function call trace with:
 #
-#    debug_cmd='eval echo "${FUNCNAME[0]} $*" >&2' bash your-script-name
+#    debug_cmd='echo "${FUNCNAME[0]} $*" >&2' bash your-script-name
 debug_cmd=${debug_cmd-":"}
 exit_cmd=:
 
@@ -580,16 +580,16 @@ if test yes = "$_G_HAVE_PLUSEQ_OP"; then
   {
     $debug_cmd
 
-    func_quote_arg pretty "$2"
-    eval "$1+=\\ \$func_quote_arg_result"
+    func_quote_for_eval "$2"
+    eval "$1+=\\ \$func_quote_for_eval_result"
   }'
 else
   func_append_quoted ()
   {
     $debug_cmd
 
-    func_quote_arg pretty "$2"
-    eval "$1=\$$1\\ \$func_quote_arg_result"
+    func_quote_for_eval "$2"
+    eval "$1=\$$1\\ \$func_quote_for_eval_result"
   }
 fi
 
@@ -1091,181 +1091,85 @@ func_relative_path ()
 }
 
 
-# func_quote_portable EVAL ARG
-# ----------------------------
-# Internal function to portably implement func_quote_arg.  Note that we still
-# keep attention to performance here so we as much as possible try to avoid
-# calling sed binary (so far O(N) complexity as long as func_append is O(1)).
-func_quote_portable ()
+# func_quote_for_eval ARG...
+# --------------------------
+# Aesthetically quote ARGs to be evaled later.
+# This function returns two values:
+#   i) func_quote_for_eval_result
+#      double-quoted, suitable for a subsequent eval
+#  ii) func_quote_for_eval_unquoted_result
+#      has all characters that are still active within double
+#      quotes backslashified.
+func_quote_for_eval ()
 {
     $debug_cmd
 
-    func_quote_portable_result=$2
-
-    # one-time-loop (easy break)
-    while true
-    do
-      if $1; then
-        func_quote_portable_result=`$ECHO "$2" | $SED \
-          -e "$sed_double_quote_subst" -e "$sed_double_backslash"`
-        break
-      fi
-
-      # Quote for eval.
-      case $func_quote_portable_result in
+    func_quote_for_eval_unquoted_result=
+    func_quote_for_eval_result=
+    while test 0 -lt $#; do
+      case $1 in
         *[\\\`\"\$]*)
-          case $func_quote_portable_result in
-            *[\[\*\?]*)
-              func_quote_portable_result=`$ECHO "$func_quote_portable_result" | $SED "$sed_quote_subst"`
-              break
-              ;;
-          esac
+	  _G_unquoted_arg=`printf '%s\n' "$1" |$SED "$sed_quote_subst"` ;;
+        *)
+          _G_unquoted_arg=$1 ;;
+      esac
+      if test -n "$func_quote_for_eval_unquoted_result"; then
+	func_append func_quote_for_eval_unquoted_result " $_G_unquoted_arg"
+      else
+        func_append func_quote_for_eval_unquoted_result "$_G_unquoted_arg"
+      fi
 
-          func_quote_portable_old_IFS=$IFS
-          for _G_char in '\' '`' '"' '$'
-          do
-            # STATE($1) PREV($2) SEPARATOR($3)
-            set start "" ""
-            func_quote_portable_result=dummy"$_G_char$func_quote_portable_result$_G_char"dummy
-            IFS=$_G_char
-            for _G_part in $func_quote_portable_result
-            do
-              case $1 in
-              quote)
-                func_append func_quote_portable_result "$3$2"
-                set quote "$_G_part" "\\$_G_char"
-                ;;
-              start)
-                set first "" ""
-                func_quote_portable_result=
-                ;;
-              first)
-                set quote "$_G_part" ""
-                ;;
-              esac
-            done
-          done
-          IFS=$func_quote_portable_old_IFS
+      case $_G_unquoted_arg in
+        # Double-quote args containing shell metacharacters to delay
+        # word splitting, command substitution and variable expansion
+        # for a subsequent eval.
+        # Many Bourne shells cannot handle close brackets correctly
+        # in scan sets, so we specify it separately.
+        *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
+          _G_quoted_arg=\"$_G_unquoted_arg\"
           ;;
-        *) ;;
+        *)
+          _G_quoted_arg=$_G_unquoted_arg
+	  ;;
       esac
-      break
-    done
 
-    func_quote_portable_unquoted_result=$func_quote_portable_result
-    case $func_quote_portable_result in
-      # double-quote args containing shell metacharacters to delay
-      # word splitting, command substitution and variable expansion
-      # for a subsequent eval.
-      # many bourne shells cannot handle close brackets correctly
-      # in scan sets, so we specify it separately.
-      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
-        func_quote_portable_result=\"$func_quote_portable_result\"
-        ;;
-    esac
+      if test -n "$func_quote_for_eval_result"; then
+	func_append func_quote_for_eval_result " $_G_quoted_arg"
+      else
+        func_append func_quote_for_eval_result "$_G_quoted_arg"
+      fi
+      shift
+    done
 }
 
 
-# func_quotefast_eval ARG
-# -----------------------
-# Quote one ARG (internal).  This is equivalent to 'func_quote_arg eval ARG',
-# but optimized for speed.  Result is stored in $func_quotefast_eval.
-if test xyes = `(x=; printf -v x %q yes; echo x"$x") 2>/dev/null`; then
-  func_quotefast_eval ()
-  {
-    printf -v func_quotefast_eval_result %q "$1"
-  }
-else
-  func_quotefast_eval ()
-  {
-    func_quote_portable false "$1"
-    func_quotefast_eval_result=$func_quote_portable_result
-  }
-fi
-
+# func_quote_for_expand ARG
+# -------------------------
+# Aesthetically quote ARG to be evaled later; same as above,
+# but do not quote variable references.
+func_quote_for_expand ()
+{
+    $debug_cmd
 
-# func_quote_arg MODEs ARG
-# ------------------------
-# Quote one ARG to be evaled later.  MODEs argument may contain zero ore more
-# specifiers listed below separated by ',' character.  This function returns two
-# values:
-#   i) func_quote_arg_result
-#      double-quoted (when needed), suitable for a subsequent eval
-#  ii) func_quote_arg_unquoted_result
-#      has all characters that are still active within double
-#      quotes backslashified.  Available only if 'unquoted' is specified.
-#
-# Available modes:
-# ----------------
-# 'eval' (default)
-#       - escape shell special characters
-# 'expand'
-#       - the same as 'eval';  but do not quote variable references
-# 'pretty'
-#       - request aesthetic output, i.e. '"a b"' instead of 'a\ b'.  This might
-#         later used in func_quote to get output like: 'echo "a b"' instead of
-#         'echo a\ b'.  This is slower than default on some shells.
-# 'unquoted'
-#       - produce also $func_quote_arg_unquoted_result which does not contain
-#         wrapping double-quotes.
-#
-# Examples for 'func_quote_arg pretty,unquoted string':
-#
-#   string      | *_result              | *_unquoted_result
-#   ------------+-----------------------+-------------------
-#   "           | \"                    | \"
-#   a b         | "a b"                 | a b
-#   "a b"       | "\"a b\""             | \"a b\"
-#   *           | "*"                   | *
-#   z="${x-$y}" | "z=\"\${x-\$y}\""     | z=\"\${x-\$y}\"
-#
-# Examples for 'func_quote_arg pretty,unquoted,expand string':
-#
-#   string        |   *_result          |  *_unquoted_result
-#   --------------+---------------------+--------------------
-#   z="${x-$y}"   | "z=\"${x-$y}\""     | z=\"${x-$y}\"
-func_quote_arg ()
-{
-    _G_quote_expand=false
-    case ,$1, in
-      *,expand,*)
-        _G_quote_expand=:
-        ;;
+    case $1 in
+      *[\\\`\"]*)
+	_G_arg=`$ECHO "$1" | $SED \
+	    -e "$sed_double_quote_subst" -e "$sed_double_backslash"` ;;
+      *)
+        _G_arg=$1 ;;
     esac
 
-    case ,$1, in
-      *,pretty,*|*,expand,*|*,unquoted,*)
-        func_quote_portable $_G_quote_expand "$2"
-        func_quote_arg_result=$func_quote_portable_result
-        func_quote_arg_unquoted_result=$func_quote_portable_unquoted_result
-        ;;
-      *)
-        # Faster quote-for-eval for some shells.
-        func_quotefast_eval "$2"
-        func_quote_arg_result=$func_quotefast_eval_result
+    case $_G_arg in
+      # Double-quote args containing shell metacharacters to delay
+      # word splitting and command substitution for a subsequent eval.
+      # Many Bourne shells cannot handle close brackets correctly
+      # in scan sets, so we specify it separately.
+      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
+        _G_arg=\"$_G_arg\"
         ;;
     esac
-}
 
-
-# func_quote MODEs ARGs...
-# ------------------------
-# Quote all ARGs to be evaled later and join them into single command.  See
-# func_quote_arg's description for more info.
-func_quote ()
-{
-    $debug_cmd
-    _G_func_quote_mode=$1 ; shift
-    func_quote_result=
-    while test 0 -lt $#; do
-      func_quote_arg "$_G_func_quote_mode" "$1"
-      if test -n "$func_quote_result"; then
-        func_append func_quote_result " $func_quote_arg_result"
-      else
-        func_append func_quote_result "$func_quote_arg_result"
-      fi
-      shift
-    done
+    func_quote_for_expand_result=$_G_arg
 }
 
 
@@ -1311,8 +1215,8 @@ func_show_eval ()
     _G_cmd=$1
     _G_fail_exp=${2-':'}
 
-    func_quote_arg pretty,expand "$_G_cmd"
-    eval "func_notquiet $func_quote_arg_result"
+    func_quote_for_expand "$_G_cmd"
+    eval "func_notquiet $func_quote_for_expand_result"
 
     $opt_dry_run || {
       eval "$_G_cmd"
@@ -1337,8 +1241,8 @@ func_show_eval_locale ()
     _G_fail_exp=${2-':'}
 
     $opt_quiet || {
-      func_quote_arg expand,pretty "$_G_cmd"
-      eval "func_echo $func_quote_arg_result"
+      func_quote_for_expand "$_G_cmd"
+      eval "func_echo $func_quote_for_expand_result"
     }
 
     $opt_dry_run || {
@@ -1466,7 +1370,7 @@ func_lt_ver ()
 #! /bin/sh
 
 # Set a version string for this script.
-scriptversion=2015-10-12.13; # UTC
+scriptversion=2015-10-07.11; # UTC
 
 # A portable, pluggable option parser for Bourne shell.
 # Written by Gary V. Vaughan, 2010
@@ -1676,8 +1580,8 @@ func_run_hooks ()
 #    '
 #        # No change in '$@' (ignored completely by this hook).  There is
 #        # no need to do the equivalent (but slower) action:
-#        # func_quote eval ${1+"$@"}
-#        # my_options_prep_result=$func_quote_result
+#        # func_quote_for_eval ${1+"$@"}
+#        # my_options_prep_result=$func_quote_for_eval_result
 #        false
 #    }
 #    func_add_hook func_options_prep my_options_prep
@@ -1713,8 +1617,8 @@ func_run_hooks ()
 #        done
 #
 #        if $args_changed; then
-#          func_quote eval ${1+"$@"}
-#          my_silent_option_result=$func_quote_result
+#          func_quote_for_eval ${1+"$@"}
+#          my_silent_option_result=$func_quote_for_eval_result
 #        fi
 #
 #        $args_changed
@@ -1781,8 +1685,8 @@ func_options ()
     if $_G_rc_options; then
       func_options_result=$_G_res_var
     else
-      func_quote eval ${1+"$@"}
-      func_options_result=$func_quote_result
+      func_quote_for_eval ${1+"$@"}
+      func_options_result=$func_quote_for_eval_result
     fi
 
     $_G_rc_options
@@ -1925,8 +1829,8 @@ func_parse_options ()
 
     if $_G_rc_parse_options; then
       # save modified positional parameters for caller
-      func_quote eval ${1+"$@"}
-      func_parse_options_result=$func_quote_result
+      func_quote_for_eval ${1+"$@"}
+      func_parse_options_result=$func_quote_for_eval_result
     fi
 
     $_G_rc_parse_options
@@ -2237,7 +2141,7 @@ include the following information:
        compiler:       $LTCC
        compiler flags: $LTCFLAGS
        linker:         $LD (gnu? $with_gnu_ld)
-       version:        $progname $scriptversion Debian-2.4.6-2.1
+       version:        $progname $scriptversion Debian-2.4.6-15
        automake:       `($AUTOMAKE --version) 2>/dev/null |$SED 1q`
        autoconf:       `($AUTOCONF --version) 2>/dev/null |$SED 1q`
 
@@ -2471,8 +2375,8 @@ libtool_options_prep ()
 
     if $_G_rc_lt_options_prep; then
       # Pass back the list of options.
-      func_quote eval ${1+"$@"}
-      libtool_options_prep_result=$func_quote_result
+      func_quote_for_eval ${1+"$@"}
+      libtool_options_prep_result=$func_quote_for_eval_result
     fi
 
     $_G_rc_lt_options_prep
@@ -2578,8 +2482,8 @@ libtool_parse_options ()
 
     if $_G_rc_lt_parse_options; then
       # save modified positional parameters for caller
-      func_quote eval ${1+"$@"}
-      libtool_parse_options_result=$func_quote_result
+      func_quote_for_eval ${1+"$@"}
+      libtool_parse_options_result=$func_quote_for_eval_result
     fi
 
     $_G_rc_lt_parse_options
@@ -2639,8 +2543,8 @@ libtool_validate_options ()
     }
 
     # Pass back the unparsed argument list
-    func_quote eval ${1+"$@"}
-    libtool_validate_options_result=$func_quote_result
+    func_quote_for_eval ${1+"$@"}
+    libtool_validate_options_result=$func_quote_for_eval_result
 }
 func_add_hook func_validate_options libtool_validate_options
 
@@ -3606,8 +3510,8 @@ func_mode_compile ()
       esac
     done
 
-    func_quote_arg pretty "$libobj"
-    test "X$libobj" != "X$func_quote_arg_result" \
+    func_quote_for_eval "$libobj"
+    test "X$libobj" != "X$func_quote_for_eval_result" \
       && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"'	 &()|`$[]' \
       && func_warning "libobj name '$libobj' may not contain shell special characters."
     func_dirname_and_basename "$obj" "/" ""
@@ -3680,8 +3584,8 @@ compiler."
 
     func_to_tool_file "$srcfile" func_convert_file_msys_to_w32
     srcfile=$func_to_tool_file_result
-    func_quote_arg pretty "$srcfile"
-    qsrcfile=$func_quote_arg_result
+    func_quote_for_eval "$srcfile"
+    qsrcfile=$func_quote_for_eval_result
 
     # Only build a PIC object if we are building libtool libraries.
     if test yes = "$build_libtool_libs"; then
@@ -4284,8 +4188,8 @@ func_mode_install ()
        case $nonopt in *shtool*) :;; *) false;; esac
     then
       # Aesthetically quote it.
-      func_quote_arg pretty "$nonopt"
-      install_prog="$func_quote_arg_result "
+      func_quote_for_eval "$nonopt"
+      install_prog="$func_quote_for_eval_result "
       arg=$1
       shift
     else
@@ -4295,8 +4199,8 @@ func_mode_install ()
 
     # The real first argument should be the name of the installation program.
     # Aesthetically quote it.
-    func_quote_arg pretty "$arg"
-    func_append install_prog "$func_quote_arg_result"
+    func_quote_for_eval "$arg"
+    func_append install_prog "$func_quote_for_eval_result"
     install_shared_prog=$install_prog
     case " $install_prog " in
       *[\\\ /]cp\ *) install_cp=: ;;
@@ -4353,12 +4257,12 @@ func_mode_install ()
       esac
 
       # Aesthetically quote the argument.
-      func_quote_arg pretty "$arg"
-      func_append install_prog " $func_quote_arg_result"
+      func_quote_for_eval "$arg"
+      func_append install_prog " $func_quote_for_eval_result"
       if test -n "$arg2"; then
-	func_quote_arg pretty "$arg2"
+	func_quote_for_eval "$arg2"
       fi
-      func_append install_shared_prog " $func_quote_arg_result"
+      func_append install_shared_prog " $func_quote_for_eval_result"
     done
 
     test -z "$install_prog" && \
@@ -4369,8 +4273,8 @@ func_mode_install ()
 
     if test -n "$install_override_mode" && $no_mode; then
       if $install_cp; then :; else
-	func_quote_arg pretty "$install_override_mode"
-	func_append install_shared_prog " -m $func_quote_arg_result"
+	func_quote_for_eval "$install_override_mode"
+	func_append install_shared_prog " -m $func_quote_for_eval_result"
       fi
     fi
 
@@ -4666,8 +4570,8 @@ func_mode_install ()
 	        relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'`
 
 	        $opt_quiet || {
-	          func_quote_arg expand,pretty "$relink_command"
-		  eval "func_echo $func_quote_arg_result"
+	          func_quote_for_expand "$relink_command"
+		  eval "func_echo $func_quote_for_expand_result"
 	        }
 	        if eval "$relink_command"; then :
 	          else
@@ -5446,8 +5350,7 @@ else
   if test \"\$libtool_execute_magic\" != \"$magic\"; then
     file=\"\$0\""
 
-    func_quote_arg pretty "$ECHO"
-    qECHO=$func_quote_arg_result
+    qECHO=`$ECHO "$ECHO" | $SED "$sed_quote_subst"`
     $ECHO "\
 
 # A function that is used when there is no print builtin or printf.
@@ -5457,7 +5360,7 @@ func_fallback_echo ()
 \$1
 _LTECHO_EOF'
 }
-    ECHO=$qECHO
+    ECHO=\"$qECHO\"
   fi
 
 # Very basic option parsing. These options are (a) specific to
@@ -6800,9 +6703,9 @@ func_mode_link ()
     while test "$#" -gt 0; do
       arg=$1
       shift
-      func_quote_arg pretty,unquoted "$arg"
-      qarg=$func_quote_arg_unquoted_result
-      func_append libtool_args " $func_quote_arg_result"
+      func_quote_for_eval "$arg"
+      qarg=$func_quote_for_eval_unquoted_result
+      func_append libtool_args " $func_quote_for_eval_result"
 
       # If the previous option needs an argument, assign it.
       if test -n "$prev"; then
@@ -7400,9 +7303,9 @@ func_mode_link ()
 	save_ifs=$IFS; IFS=,
 	for flag in $args; do
 	  IFS=$save_ifs
-          func_quote_arg pretty "$flag"
-	  func_append arg " $func_quote_arg_result"
-	  func_append compiler_flags " $func_quote_arg_result"
+          func_quote_for_eval "$flag"
+	  func_append arg " $func_quote_for_eval_result"
+	  func_append compiler_flags " $func_quote_for_eval_result"
 	done
 	IFS=$save_ifs
 	func_stripname ' ' '' "$arg"
@@ -7416,10 +7319,10 @@ func_mode_link ()
 	save_ifs=$IFS; IFS=,
 	for flag in $args; do
 	  IFS=$save_ifs
-          func_quote_arg pretty "$flag"
-	  func_append arg " $wl$func_quote_arg_result"
-	  func_append compiler_flags " $wl$func_quote_arg_result"
-	  func_append linker_flags " $func_quote_arg_result"
+          func_quote_for_eval "$flag"
+	  func_append arg " $wl$func_quote_for_eval_result"
+	  func_append compiler_flags " $wl$func_quote_for_eval_result"
+	  func_append linker_flags " $func_quote_for_eval_result"
 	done
 	IFS=$save_ifs
 	func_stripname ' ' '' "$arg"
@@ -7443,8 +7346,8 @@ func_mode_link ()
 
       # -msg_* for osf cc
       -msg_*)
-	func_quote_arg pretty "$arg"
-	arg=$func_quote_arg_result
+	func_quote_for_eval "$arg"
+	arg=$func_quote_for_eval_result
 	;;
 
       # Flags to be passed through unchanged, with rationale:
@@ -7464,12 +7367,15 @@ func_mode_link ()
       # -specs=*             GCC specs files
       # -stdlib=*            select c++ std lib with clang
       # -fsanitize=*         Clang/GCC memory and address sanitizer
+      # -fuse-ld=*           Linker select flags for GCC
+      # -static-*            direct GCC to link specific libraries statically
+      # -fcilkplus           Cilk Plus language extension features for C/C++
       -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
       -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \
       -O*|-g*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*|-stdlib=*| \
-      -specs=*|-fsanitize=*)
-        func_quote_arg pretty "$arg"
-	arg=$func_quote_arg_result
+      -specs=*|-fsanitize=*|-fuse-ld=*|-static-*|-fcilkplus)
+        func_quote_for_eval "$arg"
+	arg=$func_quote_for_eval_result
         func_append compile_command " $arg"
         func_append finalize_command " $arg"
         func_append compiler_flags " $arg"
@@ -7490,15 +7396,15 @@ func_mode_link ()
 	  continue
         else
 	  # Otherwise treat like 'Some other compiler flag' below
-	  func_quote_arg pretty "$arg"
-	  arg=$func_quote_arg_result
+	  func_quote_for_eval "$arg"
+	  arg=$func_quote_for_eval_result
         fi
 	;;
 
       # Some other compiler flag.
       -* | +*)
-        func_quote_arg pretty "$arg"
-	arg=$func_quote_arg_result
+        func_quote_for_eval "$arg"
+	arg=$func_quote_for_eval_result
 	;;
 
       *.$objext)
@@ -7618,8 +7524,8 @@ func_mode_link ()
       *)
 	# Unknown arguments in both finalize_command and compile_command need
 	# to be aesthetically quoted because they are evaled later.
-	func_quote_arg pretty "$arg"
-	arg=$func_quote_arg_result
+	func_quote_for_eval "$arg"
+	arg=$func_quote_for_eval_result
 	;;
       esac # arg
 
@@ -10131,8 +10037,8 @@ EOF
 	    for cmd in $concat_cmds; do
 	      IFS=$save_ifs
 	      $opt_quiet || {
-		  func_quote_arg expand,pretty "$cmd"
-		  eval "func_echo $func_quote_arg_result"
+		  func_quote_for_expand "$cmd"
+		  eval "func_echo $func_quote_for_expand_result"
 	      }
 	      $opt_dry_run || eval "$cmd" || {
 		lt_exit=$?
@@ -10225,8 +10131,8 @@ EOF
 	  eval cmd=\"$cmd\"
 	  IFS=$save_ifs
 	  $opt_quiet || {
-	    func_quote_arg expand,pretty "$cmd"
-	    eval "func_echo $func_quote_arg_result"
+	    func_quote_for_expand "$cmd"
+	    eval "func_echo $func_quote_for_expand_result"
 	  }
 	  $opt_dry_run || eval "$cmd" || {
 	    lt_exit=$?
@@ -10700,12 +10606,12 @@ EOF
 	  elif eval var_value=\$$var; test -z "$var_value"; then
 	    relink_command="$var=; export $var; $relink_command"
 	  else
-	    func_quote_arg pretty "$var_value"
-	    relink_command="$var=$func_quote_arg_result; export $var; $relink_command"
+	    func_quote_for_eval "$var_value"
+	    relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
 	  fi
 	done
-	func_quote_arg pretty,unquoted "(cd `pwd`; $relink_command)"
-	relink_command=$func_quote_arg_unquoted_result
+	relink_command="(cd `pwd`; $relink_command)"
+	relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
       fi
 
       # Only actually do things if not in dry run mode.
@@ -10945,14 +10851,13 @@ EOF
 	elif eval var_value=\$$var; test -z "$var_value"; then
 	  relink_command="$var=; export $var; $relink_command"
 	else
-	  func_quote_arg pretty,unquoted "$var_value"
-	  relink_command="$var=$func_quote_arg_unquoted_result; export $var; $relink_command"
+	  func_quote_for_eval "$var_value"
+	  relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
 	fi
       done
       # Quote the link command for shipping.
       relink_command="(cd `pwd`; $SHELL \"$progpath\" $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)"
-      func_quote_arg pretty,unquoted "$relink_command"
-      relink_command=$func_quote_arg_unquoted_result
+      relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
       if test yes = "$hardcode_automatic"; then
 	relink_command=
       fi
diff --git a/m4/Makefile.in b/m4/Makefile.in
index 97eeec1..696e406 100644
--- a/m4/Makefile.in
+++ b/m4/Makefile.in
@@ -1,7 +1,7 @@
-# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# Makefile.in generated by automake 1.16.3 from Makefile.am.
 # @configure_input@
 
-# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+# Copyright (C) 1994-2020 Free Software Foundation, Inc.
 
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
diff --git a/m4/libtool.m4 b/m4/libtool.m4
index ee80844..c4c0294 100644
--- a/m4/libtool.m4
+++ b/m4/libtool.m4
@@ -1041,8 +1041,8 @@ int forced_loaded() { return 2;}
 _LT_EOF
       echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&AS_MESSAGE_LOG_FD
       $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&AS_MESSAGE_LOG_FD
-      echo "$AR cru libconftest.a conftest.o" >&AS_MESSAGE_LOG_FD
-      $AR cru libconftest.a conftest.o 2>&AS_MESSAGE_LOG_FD
+      echo "$AR cr libconftest.a conftest.o" >&AS_MESSAGE_LOG_FD
+      $AR cr libconftest.a conftest.o 2>&AS_MESSAGE_LOG_FD
       echo "$RANLIB libconftest.a" >&AS_MESSAGE_LOG_FD
       $RANLIB libconftest.a 2>&AS_MESSAGE_LOG_FD
       cat > conftest.c << _LT_EOF
@@ -1071,11 +1071,11 @@ _LT_EOF
       # to the OS version, if on x86, and 10.4, the deployment
       # target defaults to 10.4. Don't you love it?
       case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
-	10.0,*86*-darwin8*|10.0,*-darwin[[91]]*)
+	10.0,*86*-darwin8*|10.0,*-darwin[[912]]*)
 	  _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
 	10.[[012]][[,.]]*)
 	  _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
-	10.*)
+	10.*|11.*)
 	  _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
       esac
     ;;
@@ -1492,7 +1492,7 @@ need_locks=$enable_libtool_lock
 m4_defun([_LT_PROG_AR],
 [AC_CHECK_TOOLS(AR, [ar], false)
 : ${AR=ar}
-: ${AR_FLAGS=cru}
+: ${AR_FLAGS=cr}
 _LT_DECL([], [AR], [1], [The archiver])
 _LT_DECL([], [AR_FLAGS], [1], [Flags to create an archive])
 
@@ -4063,7 +4063,8 @@ _LT_EOF
   if AC_TRY_EVAL(ac_compile); then
     # Now try to grab the symbols.
     nlist=conftest.nm
-    if AC_TRY_EVAL(NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) && test -s "$nlist"; then
+    $ECHO "$as_me:$LINENO: $NM conftest.$ac_objext | $lt_cv_sys_global_symbol_pipe > $nlist" >&AS_MESSAGE_LOG_FD
+    if eval "$NM" conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist 2>&AS_MESSAGE_LOG_FD && test -s "$nlist"; then
       # Try sorting and uniquifying the output.
       if sort "$nlist" | uniq > "$nlist"T; then
 	mv -f "$nlist"T "$nlist"
@@ -4703,6 +4704,12 @@ m4_if([$1], [CXX], [
 	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
 	_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
         ;;
+      # flang / f18. f95 an alias for gfortran or flang on Debian
+      flang* | f18* | f95*)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+        ;;
       # icc used to be incompatible with GCC.
       # ICC 10 doesn't accept -KPIC any more.
       icc* | ifort*)
@@ -6438,7 +6445,7 @@ if test yes != "$_lt_caught_CXX_error"; then
       # Commands to make compiler produce verbose output that lists
       # what "hidden" libraries, object files and flags are used when
       # linking a shared library.
-      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP " \-L"'
 
     else
       GXX=no
@@ -6813,7 +6820,7 @@ if test yes != "$_lt_caught_CXX_error"; then
             # explicitly linking system object files so we need to strip them
             # from the output so that they don't get included in the library
             # dependencies.
-            output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+            output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP " \-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
             ;;
           *)
             if test yes = "$GXX"; then
@@ -6878,7 +6885,7 @@ if test yes != "$_lt_caught_CXX_error"; then
 	    # explicitly linking system object files so we need to strip them
 	    # from the output so that they don't get included in the library
 	    # dependencies.
-	    output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+	    output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP " \-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
 	    ;;
           *)
 	    if test yes = "$GXX"; then
@@ -7217,7 +7224,7 @@ if test yes != "$_lt_caught_CXX_error"; then
 	      # Commands to make compiler produce verbose output that lists
 	      # what "hidden" libraries, object files and flags are used when
 	      # linking a shared library.
-	      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+	      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP " \-L"'
 
 	    else
 	      # FIXME: insert proper C++ library support
@@ -7301,7 +7308,7 @@ if test yes != "$_lt_caught_CXX_error"; then
 	        # Commands to make compiler produce verbose output that lists
 	        # what "hidden" libraries, object files and flags are used when
 	        # linking a shared library.
-	        output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+	        output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP " \-L"'
 	      else
 	        # g++ 2.7 appears to require '-G' NOT '-shared' on this
 	        # platform.
@@ -7312,7 +7319,7 @@ if test yes != "$_lt_caught_CXX_error"; then
 	        # Commands to make compiler produce verbose output that lists
 	        # what "hidden" libraries, object files and flags are used when
 	        # linking a shared library.
-	        output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+	        output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP " \-L"'
 	      fi
 
 	      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $wl$libdir'
diff --git a/missing b/missing
index 625aeb1..8d0eaad 100755
--- a/missing
+++ b/missing
@@ -3,7 +3,7 @@
 
 scriptversion=2018-03-07.03; # UTC
 
-# Copyright (C) 1996-2018 Free Software Foundation, Inc.
+# Copyright (C) 1996-2020 Free Software Foundation, Inc.
 # Originally written by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
 
 # This program is free software; you can redistribute it and/or modify
diff --git a/po/de.po b/po/de.po
index 7cc1b71..ea4c1da 100644
--- a/po/de.po
+++ b/po/de.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: libiptcdata 1.0.2+libtool01-2_libiptcdata\n"
 "Report-Msgid-Bugs-To: dcm@acm.org\n"
-"POT-Creation-Date: 2018-09-12 21:49+1000\n"
+"POT-Creation-Date: 2021-06-08 15:08+0000\n"
 "PO-Revision-Date: 2008-12-17 10:27+GMT\n"
 "Last-Translator: Chris Leick <c.leick@vollbio.de>\n"
 "Language-Team: German <debian-l10n-german@lists.debian.org>\n"
diff --git a/po/it.po b/po/it.po
index f560a67..dbc8169 100644
--- a/po/it.po
+++ b/po/it.po
@@ -16,7 +16,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: libiptcdata\n"
 "Report-Msgid-Bugs-To: dcm@acm.org\n"
-"POT-Creation-Date: 2018-09-12 21:49+1000\n"
+"POT-Creation-Date: 2021-06-08 15:08+0000\n"
 "PO-Revision-Date: 2009-06-07 14:49+0200\n"
 "Last-Translator: Milo Casagrande <milo@ubuntu.com>\n"
 "Language-Team: Italian <tp@lists.linux.it>\n"
diff --git a/po/libiptcdata.pot b/po/libiptcdata.pot
index 7b71d01..3711aaf 100644
--- a/po/libiptcdata.pot
+++ b/po/libiptcdata.pot
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: dcm@acm.org\n"
-"POT-Creation-Date: 2018-09-12 21:49+1000\n"
+"POT-Creation-Date: 2021-06-08 15:08+0000\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
diff --git a/python/Makefile.in b/python/Makefile.in
index 83cde2a..4995d87 100644
--- a/python/Makefile.in
+++ b/python/Makefile.in
@@ -1,7 +1,7 @@
-# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# Makefile.in generated by automake 1.16.3 from Makefile.am.
 # @configure_input@
 
-# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+# Copyright (C) 1994-2020 Free Software Foundation, Inc.
 
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
diff --git a/test-driver b/test-driver
index b8521a4..9759384 100755
--- a/test-driver
+++ b/test-driver
@@ -3,7 +3,7 @@
 
 scriptversion=2018-03-07.03; # UTC
 
-# Copyright (C) 2011-2018 Free Software Foundation, Inc.
+# Copyright (C) 2011-2020 Free Software Foundation, Inc.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -42,11 +42,13 @@ print_usage ()
 {
   cat <<END
 Usage:
-  test-driver --test-name=NAME --log-file=PATH --trs-file=PATH
-              [--expect-failure={yes|no}] [--color-tests={yes|no}]
-              [--enable-hard-errors={yes|no}] [--]
+  test-driver --test-name NAME --log-file PATH --trs-file PATH
+              [--expect-failure {yes|no}] [--color-tests {yes|no}]
+              [--enable-hard-errors {yes|no}] [--]
               TEST-SCRIPT [TEST-SCRIPT-ARGUMENTS]
+
 The '--test-name', '--log-file' and '--trs-file' options are mandatory.
+See the GNU Automake documentation for information.
 END
 }
 
diff --git a/win/Makefile.in b/win/Makefile.in
index b3d8d3b..1ded0e9 100644
--- a/win/Makefile.in
+++ b/win/Makefile.in
@@ -1,7 +1,7 @@
-# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# Makefile.in generated by automake 1.16.3 from Makefile.am.
 # @configure_input@
 
-# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+# Copyright (C) 1994-2020 Free Software Foundation, Inc.
 
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
diff --git a/win/iptctool/Makefile.in b/win/iptctool/Makefile.in
index 69b9736..73d8158 100644
--- a/win/iptctool/Makefile.in
+++ b/win/iptctool/Makefile.in
@@ -1,7 +1,7 @@
-# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# Makefile.in generated by automake 1.16.3 from Makefile.am.
 # @configure_input@
 
-# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+# Copyright (C) 1994-2020 Free Software Foundation, Inc.
 
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,