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[gnunet-ext] branch master updated: -update autotools/gettext


From: gnunet
Subject: [gnunet-ext] branch master updated: -update autotools/gettext
Date: Mon, 24 Oct 2022 09:05:02 +0200

This is an automated email from the git hooks/post-receive script.

grothoff pushed a commit to branch master
in repository gnunet-ext.

The following commit(s) were added to refs/heads/master by this push:
     new 82ba0d6  -update autotools/gettext
82ba0d6 is described below

commit 82ba0d60eb4868b605dc596a8fa46838e1cc766e
Author: Christian Grothoff <christian@grothoff.org>
AuthorDate: Mon Oct 24 09:04:59 2022 +0200

    -update autotools/gettext
---
 .gitignore             |    5 +
 ABOUT-NLS              | 1283 +-----------------------------------------------
 ChangeLog              |   14 +
 config.rpath           |  120 +++--
 configure.ac           |    9 +-
 m4/gettext.m4          |  155 +++---
 m4/host-cpu-c-abi.m4   |  675 +++++++++++++++++++++++++
 m4/iconv.m4            |  176 +++++--
 m4/intlmacosx.m4       |   65 +++
 m4/lib-ld.m4           |  208 +++++---
 m4/lib-link.m4         |  206 ++++----
 m4/lib-prefix.m4       |  238 ++++++---
 m4/nls.m4              |   14 +-
 m4/po.m4               |   93 ++--
 m4/progtest.m4         |   29 +-
 po/ChangeLog           |    9 +
 po/Makefile.in.in      |  186 ++++---
 po/Rules-quot          |   19 +-
 po/en@boldquot.header  |    2 +-
 po/en@quot.header      |    2 +-
 po/insert-header.sin   |    5 +
 po/remove-potcdate.sin |    8 +-
 src/ext/Makefile.am    |    6 +-
 23 files changed, 1686 insertions(+), 1841 deletions(-)

diff --git a/.gitignore b/.gitignore
index 13020e7..96427a6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -39,3 +39,8 @@ confdefs.c
 confdefs.err
 gnunet_ext_config.h
 gnunet_ext_config.h.in
+m4/libtool.m4
+m4/ltoptions.m4
+m4/ltsugar.m4
+m4/ltversion.m4
+m4/lt~obsolete.m4
\ No newline at end of file
diff --git a/ABOUT-NLS b/ABOUT-NLS
index b1de1b6..0a9d56d 100644
--- a/ABOUT-NLS
+++ b/ABOUT-NLS
@@ -1,1282 +1 @@
-1 Notes on the Free Translation Project
-***************************************
-
-Free software is going international!  The Free Translation Project is
-a way to get maintainers of free software, translators, and users all
-together, so that free software will gradually become able to speak many
-languages.  A few packages already provide translations for their
-messages.
-
-   If you found this `ABOUT-NLS' file inside a distribution, you may
-assume that the distributed package does use GNU `gettext' internally,
-itself available at your nearest GNU archive site.  But you do _not_
-need to install GNU `gettext' prior to configuring, installing or using
-this package with messages translated.
-
-   Installers will find here some useful hints.  These notes also
-explain how users should proceed for getting the programs to use the
-available translations.  They tell how people wanting to contribute and
-work on translations can contact the appropriate team.
-
-1.1 INSTALL Matters
-===================
-
-Some packages are "localizable" when properly installed; the programs
-they contain can be made to speak your own native language.  Most such
-packages use GNU `gettext'.  Other packages have their own ways to
-internationalization, predating GNU `gettext'.
-
-   By default, this package will be installed to allow translation of
-messages.  It will automatically detect whether the system already
-provides the GNU `gettext' functions.  Installers may use special
-options at configuration time for changing the default behaviour.  The
-command:
-
-     ./configure --disable-nls
-
-will _totally_ disable translation of messages.
-
-   When you already have GNU `gettext' installed on your system and run
-configure without an option for your new package, `configure' will
-probably detect the previously built and installed `libintl' library
-and will decide to use it.  If not, you may have to to use the
-`--with-libintl-prefix' option to tell `configure' where to look for it.
-
-   Internationalized packages usually have many `po/LL.po' files, where
-LL gives an ISO 639 two-letter code identifying the language.  Unless
-translations have been forbidden at `configure' time by using the
-`--disable-nls' switch, all available translations are installed
-together with the package.  However, the environment variable `LINGUAS'
-may be set, prior to configuration, to limit the installed set.
-`LINGUAS' should then contain a space separated list of two-letter
-codes, stating which languages are allowed.
-
-1.2 Using This Package
-======================
-
-As a user, if your language has been installed for this package, you
-only have to set the `LANG' environment variable to the appropriate
-`LL_CC' combination.  If you happen to have the `LC_ALL' or some other
-`LC_xxx' environment variables set, you should unset them before
-setting `LANG', otherwise the setting of `LANG' will not have the
-desired effect.  Here `LL' is an ISO 639 two-letter language code, and
-`CC' is an ISO 3166 two-letter country code.  For example, let's
-suppose that you speak German and live in Germany.  At the shell
-prompt, merely execute `setenv LANG de_DE' (in `csh'),
-`export LANG; LANG=de_DE' (in `sh') or `export LANG=de_DE' (in `bash').
-This can be done from your `.login' or `.profile' file, once and for
-all.
-
-   You might think that the country code specification is redundant.
-But in fact, some languages have dialects in different countries.  For
-example, `de_AT' is used for Austria, and `pt_BR' for Brazil.  The
-country code serves to distinguish the dialects.
-
-   The locale naming convention of `LL_CC', with `LL' denoting the
-language and `CC' denoting the country, is the one use on systems based
-on GNU libc.  On other systems, some variations of this scheme are
-used, such as `LL' or `LL_CC.ENCODING'.  You can get the list of
-locales supported by your system for your language by running the
-command `locale -a | grep '^LL''.
-
-   Not all programs have translations for all languages.  By default, an
-English message is shown in place of a nonexistent translation.  If you
-understand other languages, you can set up a priority list of languages.
-This is done through a different environment variable, called
-`LANGUAGE'.  GNU `gettext' gives preference to `LANGUAGE' over `LANG'
-for the purpose of message handling, but you still need to have `LANG'
-set to the primary language; this is required by other parts of the
-system libraries.  For example, some Swedish users who would rather
-read translations in German than English for when Swedish is not
-available, set `LANGUAGE' to `sv:de' while leaving `LANG' to `sv_SE'.
-
-   Special advice for Norwegian users: The language code for Norwegian
-bokma*l changed from `no' to `nb' recently (in 2003).  During the
-transition period, while some message catalogs for this language are
-installed under `nb' and some older ones under `no', it's recommended
-for Norwegian users to set `LANGUAGE' to `nb:no' so that both newer and
-older translations are used.
-
-   In the `LANGUAGE' environment variable, but not in the `LANG'
-environment variable, `LL_CC' combinations can be abbreviated as `LL'
-to denote the language's main dialect.  For example, `de' is equivalent
-to `de_DE' (German as spoken in Germany), and `pt' to `pt_PT'
-(Portuguese as spoken in Portugal) in this context.
-
-1.3 Translating Teams
-=====================
-
-For the Free Translation Project to be a success, we need interested
-people who like their own language and write it well, and who are also
-able to synergize with other translators speaking the same language.
-Each translation team has its own mailing list.  The up-to-date list of
-teams can be found at the Free Translation Project's homepage,
-`http://translationproject.org/', in the "Teams" area.
-
-   If you'd like to volunteer to _work_ at translating messages, you
-should become a member of the translating team for your own language.
-The subscribing address is _not_ the same as the list itself, it has
-`-request' appended.  For example, speakers of Swedish can send a
-message to `sv-request@li.org', having this message body:
-
-     subscribe
-
-   Keep in mind that team members are expected to participate
-_actively_ in translations, or at solving translational difficulties,
-rather than merely lurking around.  If your team does not exist yet and
-you want to start one, or if you are unsure about what to do or how to
-get started, please write to `coordinator@translationproject.org' to
-reach the coordinator for all translator teams.
-
-   The English team is special.  It works at improving and uniformizing
-the terminology in use.  Proven linguistic skills are praised more than
-programming skills, here.
-
-1.4 Available Packages
-======================
-
-Languages are not equally supported in all packages.  The following
-matrix shows the current state of internationalization, as of June
-2010.  The matrix shows, in regard of each package, for which languages
-PO files have been submitted to translation coordination, with a
-translation percentage of at least 50%.
-
-     Ready PO files       af am an ar as ast az be be@latin bg bn_IN bs ca
-                        +--------------------------------------------------+
-     a2ps               |                       []                      [] |
-     aegis              |                                                  |
-     ant-phone          |                                                  |
-     anubis             |                                                  |
-     aspell             |                []                             [] |
-     bash               |                                                  |
-     bfd                |                                                  |
-     bibshelf           |                []                                |
-     binutils           |                                                  |
-     bison              |                                                  |
-     bison-runtime      |                []                                |
-     bluez-pin          | []             []                                |
-     bombono-dvd        |                                                  |
-     buzztard           |                                                  |
-     cflow              |                                                  |
-     clisp              |                                                  |
-     coreutils          |                                   []          [] |
-     cpio               |                                                  |
-     cppi               |                                                  |
-     cpplib             |                                               [] |
-     cryptsetup         |                                                  |
-     dfarc              |                                                  |
-     dialog             |                             []                [] |
-     dico               |                                                  |
-     diffutils          |                                               [] |
-     dink               |                                                  |
-     doodle             |                                                  |
-     e2fsprogs          |                                               [] |
-     enscript           |                                               [] |
-     exif               |                                                  |
-     fetchmail          |                                               [] |
-     findutils          |                                   []             |
-     flex               |                                               [] |
-     freedink           |                                                  |
-     gas                |                                                  |
-     gawk               |                []                             [] |
-     gcal               |                                               [] |
-     gcc                |                                                  |
-     gettext-examples   | []             []                 []          [] |
-     gettext-runtime    |                                   []          [] |
-     gettext-tools      |                                   []          [] |
-     gip                |                                   []             |
-     gjay               |                                                  |
-     gliv               |                                   []             |
-     glunarclock        |                []                 []             |
-     gnubiff            |                                                  |
-     gnucash            |                                               [] |
-     gnuedu             |                                                  |
-     gnulib             |                                                  |
-     gnunet             |                                                  |
-     gnunet-gtk         |                                                  |
-     gnutls             |                                                  |
-     gold               |                                                  |
-     gpe-aerial         |                                                  |
-     gpe-beam           |                                                  |
-     gpe-bluetooth      |                                                  |
-     gpe-calendar       |                                                  |
-     gpe-clock          |                []                                |
-     gpe-conf           |                                                  |
-     gpe-contacts       |                                                  |
-     gpe-edit           |                                                  |
-     gpe-filemanager    |                                                  |
-     gpe-go             |                                                  |
-     gpe-login          |                                                  |
-     gpe-ownerinfo      |                []                                |
-     gpe-package        |                                                  |
-     gpe-sketchbook     |                                                  |
-     gpe-su             |                []                                |
-     gpe-taskmanager    |                []                                |
-     gpe-timesheet      |                []                                |
-     gpe-today          |                []                                |
-     gpe-todo           |                                                  |
-     gphoto2            |                                                  |
-     gprof              |                                   []             |
-     gpsdrive           |                                                  |
-     gramadoir          |                                                  |
-     grep               |                                                  |
-     grub               |                []                             [] |
-     gsasl              |                                                  |
-     gss                |                                                  |
-     gst-plugins-bad    |                                   []             |
-     gst-plugins-base   |                                   []             |
-     gst-plugins-good   |                                   []             |
-     gst-plugins-ugly   |                                   []             |
-     gstreamer          | []                                []          [] |
-     gtick              |                                                  |
-     gtkam              |                       []                         |
-     gtkorphan          |                                   []             |
-     gtkspell           | []             []     []                         |
-     gutenprint         |                                                  |
-     hello              |                                   []             |
-     help2man           |                                                  |
-     hylafax            |                                                  |
-     idutils            |                                                  |
-     indent             |                                   []          [] |
-     iso_15924          |                                                  |
-     iso_3166           | []          []        []          []  []   [] [] |
-     iso_3166_2         |                                                  |
-     iso_4217           |                                                  |
-     iso_639            |             [] []     []              []         |
-     iso_639_3          |                                                  |
-     jwhois             |                                                  |
-     kbd                |                                                  |
-     keytouch           |                                               [] |
-     keytouch-editor    |                                                  |
-     keytouch-keyboa... |                                               [] |
-     klavaro            |          []                                      |
-     latrine            |                                                  |
-     ld                 |                                   []             |
-     leafpad            |                                   []          [] |
-     libc               |                                   []          [] |
-     libexif            |                       ()                         |
-     libextractor       |                                                  |
-     libgnutls          |                                                  |
-     libgpewidget       |                                                  |
-     libgpg-error       |                                                  |
-     libgphoto2         |                                                  |
-     libgphoto2_port    |                                                  |
-     libgsasl           |                                                  |
-     libiconv           |                                   []             |
-     libidn             |                                                  |
-     lifelines          |                                                  |
-     liferea            |                             []                [] |
-     lilypond           |                                                  |
-     linkdr             |          []                                      |
-     lordsawar          |                                                  |
-     lprng              |                                                  |
-     lynx               |                                               [] |
-     m4                 |                                                  |
-     mailfromd          |                                                  |
-     mailutils          |                                                  |
-     make               |                                                  |
-     man-db             |                                                  |
-     man-db-manpages    |                                                  |
-     minicom            |                                                  |
-     mkisofs            |                                                  |
-     myserver           |                                                  |
-     nano               |                                   []          [] |
-     opcodes            |                                                  |
-     parted             |                                                  |
-     pies               |                                                  |
-     popt               |                                                  |
-     psmisc             |                                                  |
-     pspp               |                                               [] |
-     pwdutils           |                                                  |
-     radius             |                                               [] |
-     recode             |                       []                      [] |
-     rosegarden         |                                                  |
-     rpm                |                                                  |
-     rush               |                                                  |
-     sarg               |                                                  |
-     screem             |                                                  |
-     scrollkeeper       |                    [] []                      [] |
-     sed                |                []                             [] |
-     sharutils          |                                   []          [] |
-     shishi             |                                                  |
-     skencil            |                                                  |
-     solfege            |                                                  |
-     solfege-manual     |                                                  |
-     soundtracker       |                                                  |
-     sp                 |                                                  |
-     sysstat            |                                                  |
-     tar                |                                   []             |
-     texinfo            |                                                  |
-     tin                |                                                  |
-     unicode-han-tra... |                                                  |
-     unicode-transla... |                                                  |
-     util-linux-ng      |                                               [] |
-     vice               |                                                  |
-     vmm                |                                                  |
-     vorbis-tools       |                                                  |
-     wastesedge         |                                                  |
-     wdiff              |                                                  |
-     wget               |                       []                      [] |
-     wyslij-po          |                                                  |
-     xchat              |                []     []          []          [] |
-     xdg-user-dirs      | []    []    [] []     []    []    []  []      [] |
-     xkeyboard-config   |                                   []          [] |
-                        +--------------------------------------------------+
-                          af am an ar as ast az be be@latin bg bn_IN bs ca
-                           6  0  1  2  3 19   1 10     3    28   3    1 38
-
-                          crh cs da  de  el en en_GB en_ZA eo es et eu fa
-                        +-------------------------------------------------+
-     a2ps               |     [] []  []  []     []            [] []       |
-     aegis              |        []  []                       []          |
-     ant-phone          |        []  ()                                   |
-     anubis             |        []  []                                   |
-     aspell             |     [] []  []         []            []          |
-     bash               |     []                           [] []          |
-     bfd                |                                     []          |
-     bibshelf           |        []  []                       []          |
-     binutils           |                                     []          |
-     bison              |            []  []                               |
-     bison-runtime      |        []  []  []                      []       |
-     bluez-pin          |     [] []  []  []                [] []          |
-     bombono-dvd        |        []                                       |
-     buzztard           |     [] []  []                                   |
-     cflow              |        []  []                                   |
-     clisp              |        []  []     []                []          |
-     coreutils          |     [] []  []                          []       |
-     cpio               |                                                 |
-     cppi               |                                                 |
-     cpplib             |        []  []                       []          |
-     cryptsetup         |            []                                   |
-     dfarc              |        []  []                       []          |
-     dialog             |        []  []                    [] []    []    |
-     dico               |                                                 |
-     diffutils          |     [] []  []  []                [] []          |
-     dink               |        []  []                       []          |
-     doodle             |            []                                   |
-     e2fsprogs          |     []     []                       []          |
-     enscript           |        []  []         []                        |
-     exif               |     () []  []                                   |
-     fetchmail          |     [] []  ()  []     []            []          |
-     findutils          |     [] []  []                                   |
-     flex               |            []                       []          |
-     freedink           |        []  []                       []          |
-     gas                |                                     []          |
-     gawk               |        []  []                       []          |
-     gcal               |                                     []          |
-     gcc                |            []                       []          |
-     gettext-examples   |            []  []                [] []          |
-     gettext-runtime    |        []  []                    [] []          |
-     gettext-tools      |            []                       []    []    |
-     gip                |        []  []                       []    []    |
-     gjay               |            []                                   |
-     gliv               |     [] []  []                                   |
-     glunarclock        |        []  []                                   |
-     gnubiff            |            ()                                   |
-     gnucash            |     []     ()  ()     ()            ()          |
-     gnuedu             |        []                           []          |
-     gnulib             |            []                       []          |
-     gnunet             |                                                 |
-     gnunet-gtk         |        []                                       |
-     gnutls             |     []     []                                   |
-     gold               |                                     []          |
-     gpe-aerial         |     [] []  []                       []          |
-     gpe-beam           |     [] []  []                       []          |
-     gpe-bluetooth      |        []  []                                   |
-     gpe-calendar       |        []                                       |
-     gpe-clock          |     [] []  []                       []          |
-     gpe-conf           |     [] []  []                                   |
-     gpe-contacts       |        []  []                       []          |
-     gpe-edit           |        []  []                                   |
-     gpe-filemanager    |        []  []                       []          |
-     gpe-go             |     [] []  []                       []          |
-     gpe-login          |        []  []                                   |
-     gpe-ownerinfo      |     [] []  []                       []          |
-     gpe-package        |        []  []                       []          |
-     gpe-sketchbook     |     [] []  []                       []          |
-     gpe-su             |     [] []  []                       []          |
-     gpe-taskmanager    |     [] []  []                       []          |
-     gpe-timesheet      |     [] []  []                       []          |
-     gpe-today          |     [] []  []                       []          |
-     gpe-todo           |        []  []                       []          |
-     gphoto2            |     [] []  ()         []            []    []    |
-     gprof              |        []  []                       []          |
-     gpsdrive           |        []                           [] []       |
-     gramadoir          |        []  []                    []             |
-     grep               |     []                                          |
-     grub               |        []  []                                   |
-     gsasl              |            []                                   |
-     gss                |                                                 |
-     gst-plugins-bad    |     [] []  []                       []    []    |
-     gst-plugins-base   |     [] []  []                       []    []    |
-     gst-plugins-good   |     [] []  []  []                   []    []    |
-     gst-plugins-ugly   |     [] []  []  []                   []    []    |
-     gstreamer          |     [] []  []                       []    []    |
-     gtick              |        []  ()                    []             |
-     gtkam              |     [] []  ()                    [] []          |
-     gtkorphan          |     [] []  []                    []             |
-     gtkspell           |     [] []  []  []                [] []    []    |
-     gutenprint         |        []  []         []                        |
-     hello              |        []  []                    [] []          |
-     help2man           |            []                                   |
-     hylafax            |            []                       []          |
-     idutils            |        []  []                                   |
-     indent             |     [] []  []                    [] [] [] []    |
-     iso_15924          |        []      ()                [] []          |
-     iso_3166           | []  [] []  []  ()                [] [] [] ()    |
-     iso_3166_2         |                ()                               |
-     iso_4217           |     [] []  []  ()                   [] []       |
-     iso_639            | []  [] []  []  ()                [] []          |
-     iso_639_3          | []                                              |
-     jwhois             |                                     []          |
-     kbd                |     [] []  []  []                   []          |
-     keytouch           |        []  []                                   |
-     keytouch-editor    |        []  []                                   |
-     keytouch-keyboa... |        []                                       |
-     klavaro            |     [] []  []                    []             |
-     latrine            |        []  ()                                   |
-     ld                 |        []                           []          |
-     leafpad            |     [] []  []  []                   []    []    |
-     libc               |     [] []  []                       []          |
-     libexif            |        []  []         ()                        |
-     libextractor       |                                                 |
-     libgnutls          |     []                                          |
-     libgpewidget       |        []  []                                   |
-     libgpg-error       |     []     []                                   |
-     libgphoto2         |        []  ()                                   |
-     libgphoto2_port    |        []  ()                             []    |
-     libgsasl           |                                                 |
-     libiconv           |     [] []  []                    []    []       |
-     libidn             |     []     []                    []             |
-     lifelines          |        []  ()                                   |
-     liferea            |     []     []  []                   []    []    |
-     lilypond           |     []     []                       []          |
-     linkdr             |        []  []                       []          |
-     lordsawar          |        []                                       |
-     lprng              |                                                 |
-     lynx               |     [] []  []                          []       |
-     m4                 |     [] []  []  []                               |
-     mailfromd          |                                                 |
-     mailutils          |                                     []          |
-     make               |        []  []                       []          |
-     man-db             |                                                 |
-     man-db-manpages    |                                                 |
-     minicom            |     [] []  []                       []          |
-     mkisofs            |                                                 |
-     myserver           |                                                 |
-     nano               |            []                       []    []    |
-     opcodes            |            []                       []          |
-     parted             |     []     []                                   |
-     pies               |                                                 |
-     popt               |     [] []  []                    [] []          |
-     psmisc             |     []     []                             []    |
-     pspp               |                                     []          |
-     pwdutils           |        []                                       |
-     radius             |                                     []          |
-     recode             |     [] []  []  []                [] []          |
-     rosegarden         |     ()     ()                       ()          |
-     rpm                |        []  []                       []          |
-     rush               |                                                 |
-     sarg               |                                                 |
-     screem             |                                                 |
-     scrollkeeper       |     [] []  []         []            []          |
-     sed                |     []     []  []                [] [] []       |
-     sharutils          |        []  []                       [] []       |
-     shishi             |                                                 |
-     skencil            |        []  ()                       []          |
-     solfege            |            []                    []    []       |
-     solfege-manual     |                                  []    []       |
-     soundtracker       |        []  []                       []          |
-     sp                 |            []                                   |
-     sysstat            |        []  []                             []    |
-     tar                |     []     []                          [] []    |
-     texinfo            |            []                    [] []          |
-     tin                |            []                          []       |
-     unicode-han-tra... |                                                 |
-     unicode-transla... |                                                 |
-     util-linux-ng      |     [] []  []                       []          |
-     vice               |        ()  ()                                   |
-     vmm                |            []                                   |
-     vorbis-tools       |     []                           []             |
-     wastesedge         |        []                                       |
-     wdiff              |            []                       []          |
-     wget               |     []     []                          []       |
-     wyslij-po          |                                                 |
-     xchat              |     []     []  []                   [] []       |
-     xdg-user-dirs      | []  [] []  []  []                [] [] [] []    |
-     xkeyboard-config   | []  [] []  []                    [] []          |
-                        +-------------------------------------------------+
-                          crh cs da  de  el en en_GB en_ZA eo es et eu fa
-                           5  64 105 117 18  1   8     0   28 89 18 19  0
-
-                          fi  fr  ga gl gu he hi hr hu hy id  is it ja ka kn
-                        +----------------------------------------------------+
-     a2ps               | []  []                          []        []       |
-     aegis              |     []                                 []          |
-     ant-phone          |     []                                 []          |
-     anubis             | []  []                          []     []          |
-     aspell             |     []  []                      []     []          |
-     bash               | []  []                          []        []       |
-     bfd                | []  []                          []                 |
-     bibshelf           | []  []  []                      []     []          |
-     binutils           | []  []                          []                 |
-     bison              | []  []  []                      []                 |
-     bison-runtime      | []  []  []                      []     [] []       |
-     bluez-pin          | []  []  []                [] [] []  []    []       |
-     bombono-dvd        | []                                                 |
-     buzztard           |                                 []                 |
-     cflow              | []      []                      []                 |
-     clisp              |     []                                             |
-     coreutils          |     []  []                []    []     []          |
-     cpio               | []  []  []                      []                 |
-     cppi               | []  []                                             |
-     cpplib             | []  []                          []                 |
-     cryptsetup         |     []                          []     []          |
-     dfarc              | []  []                                 []          |
-     dialog             |     []  [] []                   []  [] [] []       |
-     dico               |                                                    |
-     diffutils          | []  []  [] []    []       []    []     [] []       |
-     dink               |     []                                             |
-     doodle             |         []                             []          |
-     e2fsprogs          |     []                          []                 |
-     enscript           |     []  []             []       []                 |
-     exif               | []  []                          []  [] [] []       |
-     fetchmail          |     []                          []     [] []       |
-     findutils          | []  []  []                []    []     []          |
-     flex               | []  []  []                                         |
-     freedink           | []  []                          []                 |
-     gas                |     []                          []                 |
-     gawk               |     []  []       []             []     () []       |
-     gcal               |     []                                             |
-     gcc                |                                 []                 |
-     gettext-examples   | []  []  []                []    []     [] []       |
-     gettext-runtime    | []  []  []                      []     [] []       |
-     gettext-tools      |     []                          []     [] []       |
-     gip                | []  []  [] []                   []        []       |
-     gjay               | []                                                 |
-     gliv               | []  ()                                             |
-     glunarclock        | []      []                []    []                 |
-     gnubiff            |     ()                          []     ()          |
-     gnucash            | ()  ()           ()       ()           () []       |
-     gnuedu             |     []                                 []          |
-     gnulib             | []  []  []                []           [] []       |
-     gnunet             |                                                    |
-     gnunet-gtk         |     []                                             |
-     gnutls             |     []                                 []          |
-     gold               | []                              []                 |
-     gpe-aerial         | []  []                          []                 |
-     gpe-beam           | []  []                          []        []       |
-     gpe-bluetooth      | []                              []     [] []       |
-     gpe-calendar       | []                                        []       |
-     gpe-clock          | []  []                    []    []        []       |
-     gpe-conf           | []  []                          []        []       |
-     gpe-contacts       | []  []                          []        []       |
-     gpe-edit           | []                              []        []       |
-     gpe-filemanager    | []                        []    []        []       |
-     gpe-go             | []  []                    []    []        []       |
-     gpe-login          | []                              []        []       |
-     gpe-ownerinfo      | []  []                    []    []        []       |
-     gpe-package        | []                              []        []       |
-     gpe-sketchbook     | []  []                          []        []       |
-     gpe-su             | []  []     []             []    []        []       |
-     gpe-taskmanager    | []  []                    []    []        []       |
-     gpe-timesheet      | []  []  []                      []        []       |
-     gpe-today          | []  []  [] []             []    []        []       |
-     gpe-todo           | []                              []        []       |
-     gphoto2            | []  []                    []    []     [] []       |
-     gprof              | []  []  []                      []                 |
-     gpsdrive           |            []                   []     []          |
-     gramadoir          |     []  []                      []                 |
-     grep               | []                                     []          |
-     grub               | []                        []    []     []          |
-     gsasl              | []  []  []                      []     []          |
-     gss                | []  []  []                      []     []          |
-     gst-plugins-bad    | []  []                    []    []     [] []       |
-     gst-plugins-base   | []  []                    []    []     [] []       |
-     gst-plugins-good   | []  []                    []    []     [] []       |
-     gst-plugins-ugly   | []  []                    []    []     [] []       |
-     gstreamer          | []  []                    []    []     []          |
-     gtick              | []  []  []                      []     []          |
-     gtkam              |     []                    []    []     [] []       |
-     gtkorphan          |     []                          []     []          |
-     gtkspell           | []  []  [] []             [] [] []     [] []       |
-     gutenprint         | []  []                    []           []          |
-     hello              | []      []                      []                 |
-     help2man           | []  []                                             |
-     hylafax            |                                 []                 |
-     idutils            | []  []  []                []    []     []          |
-     indent             | []  []  [] []             []    []     [] []       |
-     iso_15924          | []  ()                          []     []          |
-     iso_3166           | []  ()  [] [] [] [] [] [] []    []     [] []       |
-     iso_3166_2         |     ()                    []    []     []          |
-     iso_4217           | []  ()                    []    []     [] []       |
-     iso_639            | []  ()  []    []          []    []     [] []    [] |
-     iso_639_3          |     ()                                 []       [] |
-     jwhois             | []  []                    []    []     []          |
-     kbd                |     []                          []                 |
-     keytouch           | []  []  []                []    []     []          |
-     keytouch-editor    | []      []                []    []     []          |
-     keytouch-keyboa... | []      []                []    []     []          |
-     klavaro            |            []             []                       |
-     latrine            | []                              []     []          |
-     ld                 | []  []  []                      []                 |
-     leafpad            | []  []  []       []       []    []     [] ()       |
-     libc               | []  []     []                   []        []       |
-     libexif            |                                        []          |
-     libextractor       |                                                    |
-     libgnutls          |     []                                 []          |
-     libgpewidget       | []      []                      []        []       |
-     libgpg-error       |     []                                 []          |
-     libgphoto2         |     []                                 [] []       |
-     libgphoto2_port    |     []                                 [] []       |
-     libgsasl           | []  []  []                      []     []          |
-     libiconv           | []  []  []                      []     [] []       |
-     libidn             | []  []                          []     []          |
-     lifelines          |     ()                                             |
-     liferea            |     []                    []           [] []       |
-     lilypond           | []  []                                             |
-     linkdr             | []               []    [] []           []          |
-     lordsawar          |                                                    |
-     lprng              |                                 []                 |
-     lynx               |     []                    []    []     [] []       |
-     m4                 | []  []  [] []                   []        []       |
-     mailfromd          |                                                    |
-     mailutils          |     []                          []                 |
-     make               | []  []  [] []    []    []       []     [] []       |
-     man-db             |                                 []     []          |
-     man-db-manpages    |                                 []                 |
-     minicom            | []  []                    []    []        []       |
-     mkisofs            | []  []                          []     []          |
-     myserver           |                                                    |
-     nano               | []  []  [] []             []           []          |
-     opcodes            | []  []  []                      []                 |
-     parted             |     []                          []     [] []       |
-     pies               |                                                    |
-     popt               | []  []  [] []             []    []  [] [] []       |
-     psmisc             | []  []                          []                 |
-     pspp               |                                                    |
-     pwdutils           |     []                          []                 |
-     radius             |     []                          []                 |
-     recode             | []  []  [] []    []       []    []     []          |
-     rosegarden         | ()  ()                          ()     () ()       |
-     rpm                |                                 []        []       |
-     rush               |                                                    |
-     sarg               |     []                                             |
-     screem             |                                        [] []       |
-     scrollkeeper       | []                        []    []     []          |
-     sed                | []  []  [] []             []    []     [] []       |
-     sharutils          | []  []  []                []    []     [] []       |
-     shishi             |     []                                             |
-     skencil            |     []                                             |
-     solfege            | []  []     []                          []          |
-     solfege-manual     |     []     []                                      |
-     soundtracker       |     []                                 []          |
-     sp                 |     []                                    ()       |
-     sysstat            | []  []                          []     [] []       |
-     tar                | []  []  []                []    []     [] []       |
-     texinfo            |     []                          []     [] []       |
-     tin                |     []                                             |
-     unicode-han-tra... |                                                    |
-     unicode-transla... |     []  []                                         |
-     util-linux-ng      | []  []                    []    []     [] []       |
-     vice               |     ()                    ()           ()          |
-     vmm                |     []                                             |
-     vorbis-tools       |                                 []                 |
-     wastesedge         |     ()                                 ()          |
-     wdiff              | []                                                 |
-     wget               | []  []  []             [] []    []     [] []       |
-     wyslij-po          | []  []                          []                 |
-     xchat              | []  []        []    []    []    []     [] []    [] |
-     xdg-user-dirs      | []  []  [] [] [] [] []    []    []  [] [] []    [] |
-     xkeyboard-config   | []  []                    []    []     []          |
-                        +----------------------------------------------------+
-                          fi  fr  ga gl gu he hi hr hu hy id  is it ja ka kn
-                          105 121 53 20  4  8  3  5 53  2 120  5 84 67  0  4
-
-                          ko ku ky lg lt lv mk ml mn mr ms mt nb nds ne
-                        +-----------------------------------------------+
-     a2ps               |                               []              |
-     aegis              |                                               |
-     ant-phone          |                                               |
-     anubis             |                               []    []        |
-     aspell             |                         []                    |
-     bash               |                                               |
-     bfd                |                                               |
-     bibshelf           |                []             []              |
-     binutils           |                                               |
-     bison              |                               []              |
-     bison-runtime      |       []    [] []             []    []        |
-     bluez-pin          |    [] []    [] []             []              |
-     bombono-dvd        |                                               |
-     buzztard           |                                               |
-     cflow              |                                               |
-     clisp              |                                               |
-     coreutils          |          []                                   |
-     cpio               |                                               |
-     cppi               |                                               |
-     cpplib             |                                               |
-     cryptsetup         |                                               |
-     dfarc              |                   []                          |
-     dialog             |    []       [] []             []    []        |
-     dico               |                                               |
-     diffutils          |                []             []              |
-     dink               |                                               |
-     doodle             |                                               |
-     e2fsprogs          |                                               |
-     enscript           |                                               |
-     exif               |                []                             |
-     fetchmail          |                                               |
-     findutils          |                                               |
-     flex               |                                               |
-     freedink           |                                     []        |
-     gas                |                                               |
-     gawk               |                                               |
-     gcal               |                                               |
-     gcc                |                                               |
-     gettext-examples   |       []       []             [] []           |
-     gettext-runtime    | []                                            |
-     gettext-tools      | []                                            |
-     gip                |                []             []              |
-     gjay               |                                               |
-     gliv               |                                               |
-     glunarclock        |                []                             |
-     gnubiff            |                                               |
-     gnucash            | ()          ()                      ()     () |
-     gnuedu             |                                               |
-     gnulib             |                                               |
-     gnunet             |                                               |
-     gnunet-gtk         |                                               |
-     gnutls             |                               []              |
-     gold               |                                               |
-     gpe-aerial         |                []                             |
-     gpe-beam           |                []                             |
-     gpe-bluetooth      |                []                []           |
-     gpe-calendar       |                []                             |
-     gpe-clock          | []    []       []             [] []           |
-     gpe-conf           | []             []                             |
-     gpe-contacts       | []             []                             |
-     gpe-edit           |                []                             |
-     gpe-filemanager    | []             []                             |
-     gpe-go             | []             []                []           |
-     gpe-login          |                []                             |
-     gpe-ownerinfo      |                []             []              |
-     gpe-package        | []             []                             |
-     gpe-sketchbook     | []             []                             |
-     gpe-su             | []    []       []             [] [] []        |
-     gpe-taskmanager    | [] [] []       []             [] []           |
-     gpe-timesheet      |                []             []              |
-     gpe-today          |       []       []             [] []           |
-     gpe-todo           |                []                   []        |
-     gphoto2            |                                               |
-     gprof              |                               []              |
-     gpsdrive           |                                               |
-     gramadoir          |                                               |
-     grep               |                                               |
-     grub               |                                               |
-     gsasl              |                                               |
-     gss                |                                               |
-     gst-plugins-bad    |             [] []                [] []        |
-     gst-plugins-base   |             [] []                             |
-     gst-plugins-good   |                []                []           |
-     gst-plugins-ugly   |             [] []             [] [] []        |
-     gstreamer          |                                               |
-     gtick              |                                               |
-     gtkam              |                                     []        |
-     gtkorphan          |                []                      []     |
-     gtkspell           |       []    [] []       []    []    [] []     |
-     gutenprint         |                                               |
-     hello              | []             []             []              |
-     help2man           |                                               |
-     hylafax            |                                               |
-     idutils            |                                               |
-     indent             |                                               |
-     iso_15924          |             [] []                             |
-     iso_3166           | [] []       () [] [] []    []       []        |
-     iso_3166_2         |                                               |
-     iso_4217           |             []                      []        |
-     iso_639            |                      []    []                 |
-     iso_639_3          |                            []                 |
-     jwhois             |                []                             |
-     kbd                |                                               |
-     keytouch           |                []                             |
-     keytouch-editor    |                []                             |
-     keytouch-keyboa... |                []                             |
-     klavaro            |                                     []        |
-     latrine            |                []                             |
-     ld                 |                                               |
-     leafpad            | []          [] []                             |
-     libc               | []                                            |
-     libexif            |                                               |
-     libextractor       |                                               |
-     libgnutls          |                               []              |
-     libgpewidget       |                []             []              |
-     libgpg-error       |                                               |
-     libgphoto2         |                                               |
-     libgphoto2_port    |                                               |
-     libgsasl           |                                               |
-     libiconv           |                                               |
-     libidn             |                                               |
-     lifelines          |                                               |
-     liferea            |                                               |
-     lilypond           |                                               |
-     linkdr             |                                               |
-     lordsawar          |                                               |
-     lprng              |                                               |
-     lynx               |                                               |
-     m4                 |                                               |
-     mailfromd          |                                               |
-     mailutils          |                                               |
-     make               | []                                            |
-     man-db             |                                               |
-     man-db-manpages    |                                               |
-     minicom            |                                     []        |
-     mkisofs            |                                               |
-     myserver           |                                               |
-     nano               |                               []    []        |
-     opcodes            |                                               |
-     parted             |                                               |
-     pies               |                                               |
-     popt               | []             []                   []        |
-     psmisc             |                                               |
-     pspp               |                                               |
-     pwdutils           |                                               |
-     radius             |                                               |
-     recode             |                                               |
-     rosegarden         |                                               |
-     rpm                |                                               |
-     rush               |                                               |
-     sarg               |                                               |
-     screem             |                                               |
-     scrollkeeper       |                                     []     [] |
-     sed                |                                               |
-     sharutils          |                                               |
-     shishi             |                                               |
-     skencil            |                                               |
-     solfege            |                                     []        |
-     solfege-manual     |                                               |
-     soundtracker       |                                               |
-     sp                 |                                               |
-     sysstat            |                []                             |
-     tar                |       []                                      |
-     texinfo            |                                     []        |
-     tin                |                                               |
-     unicode-han-tra... |                                               |
-     unicode-transla... |                                               |
-     util-linux-ng      |                                               |
-     vice               |                                               |
-     vmm                |                                               |
-     vorbis-tools       |                                               |
-     wastesedge         |                                               |
-     wdiff              |                                               |
-     wget               |             []                                |
-     wyslij-po          |                                               |
-     xchat              | []             [] []                          |
-     xdg-user-dirs      | [] []       [] [] []       []       [] []     |
-     xkeyboard-config   | []    []    []                                |
-                        +-----------------------------------------------+
-                          ko ku ky lg lt lv mk ml mn mr ms mt nb nds ne
-                          20  5 10  1 13 48  4  2  2  4 24 10 20  3   1
-
-                          nl  nn or pa pl  ps pt pt_BR ro ru rw sk sl sq sr
-                        +---------------------------------------------------+
-     a2ps               | []           []     []  []   [] []       []    [] |
-     aegis              | []                      []      []                |
-     ant-phone          |                         []   []                   |
-     anubis             | []           []                 []                |
-     aspell             | []                           [] []    [] []       |
-     bash               | []                                    []          |
-     bfd                |                                 []                |
-     bibshelf           | []  []                                            |
-     binutils           |                                 []    []          |
-     bison              | []           []                 []                |
-     bison-runtime      | []           []     []  []   [] []       []       |
-     bluez-pin          | []           []         []   [] []    [] []    [] |
-     bombono-dvd        |     []                          ()                |
-     buzztard           | []  []                                            |
-     cflow              |              []                                   |
-     clisp              | []                              []                |
-     coreutils          | []           []     []  []      []       []       |
-     cpio               | []           []                 []                |
-     cppi               |              []                                   |
-     cpplib             | []                                                |
-     cryptsetup         | []                                                |
-     dfarc              |              []                                   |
-     dialog             | []           []         []      []                |
-     dico               |              []                                   |
-     diffutils          | []           []         []   [] []             [] |
-     dink               | ()                                                |
-     doodle             | []                                          []    |
-     e2fsprogs          | []           []                                   |
-     enscript           | []                      []   [] []       []       |
-     exif               | []           []              [] ()    []          |
-     fetchmail          | []           []                 []          []    |
-     findutils          | []           []     []          []       []       |
-     flex               | []           []         []   [] []                |
-     freedink           | []           []                                   |
-     gas                |                                                   |
-     gawk               | []           []         []   []                   |
-     gcal               |                                                   |
-     gcc                |                                                [] |
-     gettext-examples   | []           []     []       [] []    [] []    [] |
-     gettext-runtime    | []  []       []     []       [] []    [] []    [] |
-     gettext-tools      |              []              [] []    [] []    [] |
-     gip                | []           []                 []    []       [] |
-     gjay               |                                                   |
-     gliv               | []           []         []   [] []    []          |
-     glunarclock        | []                      []   []       []       [] |
-     gnubiff            | []                           ()                   |
-     gnucash            | []           ()         ()      ()                |
-     gnuedu             | []                                                |
-     gnulib             | []           []                 []       []       |
-     gnunet             |                                                   |
-     gnunet-gtk         |                                                   |
-     gnutls             | []           []                                   |
-     gold               |                                                   |
-     gpe-aerial         | []                  []  []   [] []       []    [] |
-     gpe-beam           | []                  []  []   [] []       []    [] |
-     gpe-bluetooth      | []                      []                        |
-     gpe-calendar       |                         []      []       []    [] |
-     gpe-clock          | []                  []  []   [] []    [] []    [] |
-     gpe-conf           | []                  []  []   [] []    [] []       |
-     gpe-contacts       |                         []   [] []       []    [] |
-     gpe-edit           | []           []                          []       |
-     gpe-filemanager    | []                              []       []       |
-     gpe-go             | []           []         []   [] []    [] []    [] |
-     gpe-login          | []                      []                        |
-     gpe-ownerinfo      | []                  []  []   [] []    [] []    [] |
-     gpe-package        | []                                       []       |
-     gpe-sketchbook     | []                  []  []   [] []       []    [] |
-     gpe-su             | []                  []  []   [] []    [] []    [] |
-     gpe-taskmanager    | []                  []  []   [] []    [] []    [] |
-     gpe-timesheet      | []                  []  []   [] []    [] []    [] |
-     gpe-today          | []                  []  []   [] []    [] []    [] |
-     gpe-todo           | []                      []      []       []    [] |
-     gphoto2            | []        [] []         []   [] []    []       [] |
-     gprof              | []                      []   []                   |
-     gpsdrive           | []                              []                |
-     gramadoir          | []                                    []          |
-     grep               | []           []                 []    []          |
-     grub               | []           []                 []                |
-     gsasl              | []           []                       []       [] |
-     gss                |              []              []       []          |
-     gst-plugins-bad    | []           []         []      []    []    []    |
-     gst-plugins-base   | []           []         []      []    []          |
-     gst-plugins-good   | []           []         []      []    []          |
-     gst-plugins-ugly   | []           []         []      []    [] []       |
-     gstreamer          | []           []         []      []    []          |
-     gtick              | []                              []    []          |
-     gtkam              | []        [] []         []      []    []          |
-     gtkorphan          | []                                                |
-     gtkspell           | []           []     []  []   [] []    [] [] [] [] |
-     gutenprint         | []                              []                |
-     hello              | []           []                       [] []       |
-     help2man           |              []                 []                |
-     hylafax            | []                                                |
-     idutils            | []           []         []   [] []                |
-     indent             | []           []         []   [] []    []       [] |
-     iso_15924          | []           []                 []       []       |
-     iso_3166           | []  [] [] [] []     ()  []   [] [] [] [] [] [] [] |
-     iso_3166_2         | []           []                          []       |
-     iso_4217           | []  []       []     []          [] []    []    [] |
-     iso_639            | []     [] [] []                 [] [] [] []    [] |
-     iso_639_3          |        [] []                                      |
-     jwhois             | []           []         []   []                   |
-     kbd                | []           []              []                   |
-     keytouch           | []           []                       []          |
-     keytouch-editor    | []           []                       []          |
-     keytouch-keyboa... | []           []                       []          |
-     klavaro            | []                      []                        |
-     latrine            |              []                 []                |
-     ld                 |                                                   |
-     leafpad            | []  []       []     []  []      []    [] []    [] |
-     libc               | []           []                 []    []          |
-     libexif            | []           []         ()            []          |
-     libextractor       |                                                   |
-     libgnutls          | []           []                                   |
-     libgpewidget       | []           []                          []       |
-     libgpg-error       |              []              []                   |
-     libgphoto2         | []           []                                   |
-     libgphoto2_port    | []           []         []      []    []          |
-     libgsasl           | []           []              []       []       [] |
-     libiconv           | []           []                       [] []    [] |
-     libidn             | []           []                                   |
-     lifelines          | []           []                                   |
-     liferea            | []           []     []  []   [] ()    ()    []    |
-     lilypond           | []                                                |
-     linkdr             | []                  []          []                |
-     lordsawar          |                                                   |
-     lprng              |              []                                   |
-     lynx               | []                      []      []                |
-     m4                 | []           []         []   [] []                |
-     mailfromd          |              []                                   |
-     mailutils          |              []                                   |
-     make               | []           []         []      []                |
-     man-db             | []           []                 []                |
-     man-db-manpages    | []           []                 []                |
-     minicom            |              []         []   [] []                |
-     mkisofs            | []           []                 []                |
-     myserver           |                                                   |
-     nano               | []           []         []      []                |
-     opcodes            | []                           []                   |
-     parted             | []           []                 []    []          |
-     pies               |              []                                   |
-     popt               | []           []     []          []                |
-     psmisc             | []           []                 []                |
-     pspp               | []                      []                        |
-     pwdutils           |              []                                   |
-     radius             | []           []                 []                |
-     recode             | []           []     []  []   [] []    [] []       |
-     rosegarden         |              ()                 ()                |
-     rpm                | []           []     []                            |
-     rush               | []           []                                   |
-     sarg               |                                                   |
-     screem             |                                                   |
-     scrollkeeper       | []  []       []              [] []    []    [] [] |
-     sed                | []           []     []  []   [] []    [] []    [] |
-     sharutils          | []           []                 []             [] |
-     shishi             |              []                                   |
-     skencil            |                     []  []                        |
-     solfege            | []           []         []      []                |
-     solfege-manual     | []           []         []                        |
-     soundtracker       |                                       []          |
-     sp                 |                                                   |
-     sysstat            | []           []         []      []                |
-     tar                | []           []                 []       []       |
-     texinfo            | []           []              [] []                |
-     tin                |                                 []                |
-     unicode-han-tra... |                                                   |
-     unicode-transla... |                                                   |
-     util-linux-ng      | []           []         []      []       []       |
-     vice               | []                                                |
-     vmm                | []                                                |
-     vorbis-tools       | []           []                                   |
-     wastesedge         | []                                                |
-     wdiff              | []           []                                   |
-     wget               | []           []     []  []      []    [] []       |
-     wyslij-po          | []  []       []                                   |
-     xchat              | []        [] []     []          []    [] [] [] [] |
-     xdg-user-dirs      | []  [] [] [] []  [] []  []   [] []    [] [] [] [] |
-     xkeyboard-config   | []           []                 []                |
-                        +---------------------------------------------------+
-                          nl  nn or pa pl  ps pt pt_BR ro ru rw sk sl sq sr
-                          135 10  4  7 105  1 29  62   47 91  3 54 46  9 37
-
-                          sv  sw ta te tg th tr uk vi  wa zh_CN zh_HK zh_TW
-                        +---------------------------------------------------+
-     a2ps               | []              [] [] [] []                       | 
27
-     aegis              |                          []                       |  
9
-     ant-phone          | []                 []    []      []               |  
9
-     anubis             | []                 [] [] []                       | 
15
-     aspell             |                       [] []  []                   | 
20
-     bash               | []                    [] []                       | 
12
-     bfd                |                          []                       |  
6
-     bibshelf           | []                       []      []               | 
16
-     binutils           |                       [] []                       |  
8
-     bison              | []                       []                       | 
12
-     bison-runtime      | []              []    [] []      []          []   | 
29
-     bluez-pin          | []              [] [] [] []  []  []          []   | 
37
-     bombono-dvd        |                          []                       |  
4
-     buzztard           |                          []                       |  
7
-     cflow              |                       [] []      []               |  
9
-     clisp              |                                                   | 
10
-     coreutils          | []                    [] []      []               | 
22
-     cpio               | []                 [] [] []      []          []   | 
13
-     cppi               |                       [] []                       |  
5
-     cpplib             | []                 [] [] []      []          []   | 
14
-     cryptsetup         | []                       []                       |  
7
-     dfarc              |                          []                       |  
9
-     dialog             | []  []          []       []  []  []          []   | 
30
-     dico               |                       []                          |  
2
-     diffutils          | []                 [] [] []      []          []   | 
30
-     dink               |                                                   |  
4
-     doodle             | []                       []                       |  
7
-     e2fsprogs          | []                 []    []                       | 
11
-     enscript           | []                 [] [] []                       | 
17
-     exif               | []                       []      []               | 
16
-     fetchmail          |                    []    []      []               | 
17
-     findutils          | []                 [] [] []      []               | 
20
-     flex               | []                 []    []                  []   | 
15
-     freedink           |                          []                       | 
10
-     gas                |                    []                             |  
4
-     gawk               | []                 []    []      []               | 
18
-     gcal               | []                 []                             |  
5
-     gcc                | []                 []            []               |  
7
-     gettext-examples   | []                 [] [] []      []    []    []   | 
34
-     gettext-runtime    | []                 [] [] []      []    []    []   | 
29
-     gettext-tools      | []                 [] [] []      []          []   | 
22
-     gip                | []                       []      []          []   | 
22
-     gjay               |                          []                       |  
3
-     gliv               | []                 []    []                       | 
14
-     glunarclock        | []                       []  []  []          []   | 
19
-     gnubiff            | []                       []                       |  
4
-     gnucash            |                    () [] ()      []          ()   | 
10
-     gnuedu             |                          []                  []   |  
7
-     gnulib             | []                    [] []      []               | 
16
-     gnunet             |                          []                       |  
1
-     gnunet-gtk         | []                 []    []                       |  
5
-     gnutls             | []                       []      []               | 
10
-     gold               |                          []                       |  
4
-     gpe-aerial         | []                       []      []               | 
18
-     gpe-beam           | []                       []      []               | 
19
-     gpe-bluetooth      | []                       []      []               | 
13
-     gpe-calendar       | []                       []  []  []               | 
12
-     gpe-clock          | []                 []    []  []  []               | 
28
-     gpe-conf           | []                       []  []  []               | 
20
-     gpe-contacts       | []                       []      []               | 
17
-     gpe-edit           | []                       []      []               | 
12
-     gpe-filemanager    | []                       []  []  []               | 
16
-     gpe-go             | []                 []    []  []  []               | 
25
-     gpe-login          | []                       []      []               | 
11
-     gpe-ownerinfo      | []                 []    []      []          []   | 
25
-     gpe-package        | []                       []      []               | 
13
-     gpe-sketchbook     | []                       []      []               | 
20
-     gpe-su             | []                 []    []  []  []               | 
30
-     gpe-taskmanager    | []                 []    []  []  []               | 
29
-     gpe-timesheet      | []                 []    []      []          []   | 
25
-     gpe-today          | []                 []    []  []  []          []   | 
30
-     gpe-todo           | []                       []  []  []               | 
17
-     gphoto2            | []                    [] []      []          []   | 
24
-     gprof              | []                 []    []                       | 
15
-     gpsdrive           | []                       []      []               | 
11
-     gramadoir          | []                       []      []               | 
11
-     grep               |                 []       []      []               | 
10
-     grub               | []                       []      []               | 
14
-     gsasl              | []                       []      []          []   | 
14
-     gss                | []                       []      []               | 
11
-     gst-plugins-bad    | []                 []    []      []               | 
26
-     gst-plugins-base   | []                 [] [] []      []               | 
24
-     gst-plugins-good   | []                 []    []      []               | 
24
-     gst-plugins-ugly   | []                 [] [] []      []               | 
29
-     gstreamer          | []                    [] []      []               | 
22
-     gtick              |                       [] []      []               | 
13
-     gtkam              | []                       []      []               | 
20
-     gtkorphan          | []                       []      []               | 
14
-     gtkspell           | []              [] [] [] []  []  []    []    []   | 
45
-     gutenprint         | []                                                | 
10
-     hello              | []              [] []    []      []          []   | 
21
-     help2man           | []                       []                       |  
7
-     hylafax            |                          []                       |  
5
-     idutils            | []                 []    []      []               | 
17
-     indent             | []                 [] [] []      []          []   | 
30
-     iso_15924          |                 ()    [] ()      []          []   | 
16
-     iso_3166           | []        []    () [] [] ()  []  []    []    ()   | 
53
-     iso_3166_2         |                 ()    [] ()      []               |  
9
-     iso_4217           | []              () [] [] ()      []    []         | 
26
-     iso_639            | []     [] []    ()    [] ()  []  []    []    []   | 
38
-     iso_639_3          |        []                ()                       |  
8
-     jwhois             | []                 []    []      []          []   | 
16
-     kbd                | []                 [] [] []      []               | 
15
-     keytouch           | []                       []      []               | 
16
-     keytouch-editor    | []                       []      []               | 
14
-     keytouch-keyboa... | []                       []      []               | 
14
-     klavaro            |                          []                       | 
11
-     latrine            |                    []    []      []               | 
10
-     ld                 | []                 []    []                  []   | 
11
-     leafpad            | []                 [] [] []      []          []   | 
33
-     libc               | []                 []    []      []          []   | 
21
-     libexif            |                          []      ()               |  
7
-     libextractor       |                          []                       |  
1
-     libgnutls          | []                       []      []               |  
9
-     libgpewidget       | []                       []      []               | 
14
-     libgpg-error       | []                       []      []               |  
9
-     libgphoto2         |                       [] []                       |  
8
-     libgphoto2_port    | []                    [] []                  []   | 
14
-     libgsasl           | []                       []      []               | 
13
-     libiconv           | []                       []  []  []               | 
21
-     libidn             | ()                       []      []               | 
11
-     lifelines          | []                                                |  
4
-     liferea            | []                 []            []               | 
21
-     lilypond           |                          []                       |  
7
-     linkdr             | []                 []    []      []          []   | 
17
-     lordsawar          |                                                   |  
1
-     lprng              |                          []                       |  
3
-     lynx               | []                 [] [] []                       | 
17
-     m4                 | []                       []      []          []   | 
19
-     mailfromd          |                       [] []                       |  
3
-     mailutils          |                          []                       |  
5
-     make               | []                 []    []      []               | 
21
-     man-db             | []                       []      []               |  
8
-     man-db-manpages    |                                                   |  
4
-     minicom            | []                       []                       | 
16
-     mkisofs            |                          []      []               |  
9
-     myserver           |                                                   |  0
-     nano               | []                       []      []          []   | 
21
-     opcodes            | []                 []    []                       | 
11
-     parted             | []                 [] [] []                  []   | 
15
-     pies               |                       [] []                       |  
3
-     popt               | []              [] []    []      []          []   | 
27
-     psmisc             | []                       []                       | 
11
-     pspp               |                                                   |  
4
-     pwdutils           | []                       []                       |  
6
-     radius             |                       [] []                       |  
9
-     recode             | []                 []    []      []               | 
28
-     rosegarden         | ()                                                |  0
-     rpm                | []                       []                  []   | 
11
-     rush               |                       [] []                       |  
4
-     sarg               |                                                   |  
1
-     screem             |                          []                       |  
3
-     scrollkeeper       | []                 [] [] []                  []   | 
27
-     sed                | []                 []    []      []          []   | 
30
-     sharutils          | []                 []    []      []          []   | 
22
-     shishi             |                          []                       |  
3
-     skencil            | []                       []                       |  
7
-     solfege            | []                 []    []      []               | 
16
-     solfege-manual     |                    []                             |  
8
-     soundtracker       | []                 []    []                       |  
9
-     sp                 |                    []                             |  
3
-     sysstat            |                          []      []               | 
15
-     tar                | []                 [] [] []      []          []   | 
23
-     texinfo            | []                 [] [] []      []               | 
17
-     tin                |                                                   |  
4
-     unicode-han-tra... |                                                   |  0
-     unicode-transla... |                                                   |  
2
-     util-linux-ng      | []                 [] [] []                       | 
20
-     vice               | ()                 ()                             |  
1
-     vmm                |                          []                       |  
4
-     vorbis-tools       |                          []                       |  
6
-     wastesedge         |                                                   |  
2
-     wdiff              | []                       []                       |  
7
-     wget               | []                 []    []      []          []   | 
26
-     wyslij-po          |                       [] []                       |  
8
-     xchat              | []              []    [] []      []          []   | 
36
-     xdg-user-dirs      | []     [] []    [] [] [] []      []    []    []   | 
63
-     xkeyboard-config   | []                    [] []                       | 
22
-                        +---------------------------------------------------+
-       85 teams           sv  sw ta te tg th tr uk vi  wa zh_CN zh_HK zh_TW
-      178 domains         119  1  3  3  0 10 65 51 155 17  98     7    41    
2618
-
-   Some counters in the preceding matrix are higher than the number of
-visible blocks let us expect.  This is because a few extra PO files are
-used for implementing regional variants of languages, or language
-dialects.
-
-   For a PO file in the matrix above to be effective, the package to
-which it applies should also have been internationalized and
-distributed as such by its maintainer.  There might be an observable
-lag between the mere existence a PO file and its wide availability in a
-distribution.
-
-   If June 2010 seems to be old, you may fetch a more recent copy of
-this `ABOUT-NLS' file on most GNU archive sites.  The most up-to-date
-matrix with full percentage details can be found at
-`http://translationproject.org/extra/matrix.html'.
-
-1.5 Using `gettext' in new packages
-===================================
-
-If you are writing a freely available program and want to
-internationalize it you are welcome to use GNU `gettext' in your
-package.  Of course you have to respect the GNU Library General Public
-License which covers the use of the GNU `gettext' library.  This means
-in particular that even non-free programs can use `libintl' as a shared
-library, whereas only free software can use `libintl' as a static
-library or use modified versions of `libintl'.
-
-   Once the sources are changed appropriately and the setup can handle
-the use of `gettext' the only thing missing are the translations.  The
-Free Translation Project is also available for packages which are not
-developed inside the GNU project.  Therefore the information given above
-applies also for every other Free Software Project.  Contact
-`coordinator@translationproject.org' to make the `.pot' files available
-to the translation teams.
-
+<https://www.gnu.org/software/gettext/manual/html_node/Users.html>
diff --git a/ChangeLog b/ChangeLog
index 5363c5b..ead39d5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,17 @@
+2022-10-24  gettextize  <bug-gnu-gettext@gnu.org>
+
+       * m4/gettext.m4: Upgrade to gettext-0.21.
+       * m4/host-cpu-c-abi.m4: New file, from gettext-0.21.
+       * m4/iconv.m4: Upgrade to gettext-0.21.
+       * m4/intlmacosx.m4: New file, from gettext-0.21.
+       * m4/lib-ld.m4: Upgrade to gettext-0.21.
+       * m4/lib-link.m4: Upgrade to gettext-0.21.
+       * m4/lib-prefix.m4: Upgrade to gettext-0.21.
+       * m4/nls.m4: Upgrade to gettext-0.21.
+       * m4/po.m4: Upgrade to gettext-0.21.
+       * m4/progtest.m4: Upgrade to gettext-0.21.
+       * configure.ac (AM_GNU_GETTEXT_VERSION): Bump to 0.21.
+
 2012-03-07  gettextize  <bug-gnu-gettext@gnu.org>
 
        * m4/gettext.m4: New file, from gettext-0.18.1.
diff --git a/config.rpath b/config.rpath
index 17298f2..24be79c 100755
--- a/config.rpath
+++ b/config.rpath
@@ -2,7 +2,7 @@
 # Output a system dependent set of variables, describing how to set the
 # run time search path of shared libraries in an executable.
 #
-#   Copyright 1996-2010 Free Software Foundation, Inc.
+#   Copyright 1996-2020 Free Software Foundation, Inc.
 #   Taken from GNU libtool, 2001
 #   Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
 #
@@ -25,7 +25,7 @@
 #   known workaround is to choose shorter directory names for the build
 #   directory and/or the installation directory.
 
-# All known linkers require a `.a' archive for static linking (except MSVC,
+# All known linkers require a '.a' archive for static linking (except MSVC,
 # which needs '.lib').
 libext=a
 shrext=.so
@@ -57,13 +57,6 @@ else
     aix*)
       wl='-Wl,'
       ;;
-    darwin*)
-      case $cc_basename in
-        xlc*)
-          wl='-Wl,'
-          ;;
-      esac
-      ;;
     mingw* | cygwin* | pw32* | os2* | cegcc*)
       ;;
     hpux9* | hpux10* | hpux11*)
@@ -72,9 +65,7 @@ else
     irix5* | irix6* | nonstopux*)
       wl='-Wl,'
       ;;
-    newsos6)
-      ;;
-    linux* | k*bsd*-gnu)
+    linux* | k*bsd*-gnu | kopensolaris*-gnu)
       case $cc_basename in
         ecc*)
           wl='-Wl,'
@@ -85,17 +76,26 @@ else
         lf95*)
           wl='-Wl,'
           ;;
-        pgcc | pgf77 | pgf90)
+        nagfor*)
+          wl='-Wl,-Wl,,'
+          ;;
+        pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*)
           wl='-Wl,'
           ;;
         ccc*)
           wl='-Wl,'
           ;;
+        xl* | bgxl* | bgf* | mpixl*)
+          wl='-Wl,'
+          ;;
         como)
           wl='-lopt='
           ;;
         *)
           case `$CC -V 2>&1 | sed 5q` in
+            *Sun\ F* | *Sun*Fortran*)
+              wl=
+              ;;
             *Sun\ C*)
               wl='-Wl,'
               ;;
@@ -103,13 +103,24 @@ else
           ;;
       esac
       ;;
+    newsos6)
+      ;;
+    *nto* | *qnx*)
+      ;;
     osf3* | osf4* | osf5*)
       wl='-Wl,'
       ;;
     rdos*)
       ;;
     solaris*)
-      wl='-Wl,'
+      case $cc_basename in
+        f77* | f90* | f95* | sunf77* | sunf90* | sunf95*)
+          wl='-Qoption ld '
+          ;;
+        *)
+          wl='-Wl,'
+          ;;
+      esac
       ;;
     sunos4*)
       wl='-Qoption ld '
@@ -171,15 +182,14 @@ if test "$with_gnu_ld" = yes; then
       fi
       ;;
     amigaos*)
-      hardcode_libdir_flag_spec='-L$libdir'
-      hardcode_minus_L=yes
-      # Samuel A. Falvo II <kc5tja@dolphin.openprojects.net> reports
-      # that the semantics of dynamic libraries on AmigaOS, at least up
-      # to version 4, is to share data among multiple programs linked
-      # with the same dynamic library.  Since this doesn't match the
-      # behavior of shared libraries on other platforms, we cannot use
-      # them.
-      ld_shlibs=no
+      case "$host_cpu" in
+        powerpc)
+          ;;
+        m68k)
+          hardcode_libdir_flag_spec='-L$libdir'
+          hardcode_minus_L=yes
+          ;;
+      esac
       ;;
     beos*)
       if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
@@ -198,11 +208,13 @@ if test "$with_gnu_ld" = yes; then
         ld_shlibs=no
       fi
       ;;
+    haiku*)
+      ;;
     interix[3-9]*)
       hardcode_direct=no
       hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
       ;;
-    gnu* | linux* | k*bsd*-gnu)
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
       if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
         :
       else
@@ -325,10 +337,14 @@ else
       fi
       ;;
     amigaos*)
-      hardcode_libdir_flag_spec='-L$libdir'
-      hardcode_minus_L=yes
-      # see comment about different semantics on the GNU ld section
-      ld_shlibs=no
+      case "$host_cpu" in
+        powerpc)
+          ;;
+        m68k)
+          hardcode_libdir_flag_spec='-L$libdir'
+          hardcode_minus_L=yes
+          ;;
+      esac
       ;;
     bsdi[45]*)
       ;;
@@ -342,29 +358,16 @@ else
       ;;
     darwin* | rhapsody*)
       hardcode_direct=no
-      if test "$GCC" = yes ; then
+      if { case $cc_basename in ifort*) true;; *) test "$GCC" = yes;; esac; }; 
then
         :
       else
-        case $cc_basename in
-          xlc*)
-            ;;
-          *)
-            ld_shlibs=no
-            ;;
-        esac
+        ld_shlibs=no
       fi
       ;;
     dgux*)
       hardcode_libdir_flag_spec='-L$libdir'
       ;;
-    freebsd1*)
-      ld_shlibs=no
-      ;;
-    freebsd2.2*)
-      hardcode_libdir_flag_spec='-R$libdir'
-      hardcode_direct=yes
-      ;;
-    freebsd2*)
+    freebsd2.[01]*)
       hardcode_direct=yes
       hardcode_minus_L=yes
       ;;
@@ -420,6 +423,8 @@ else
       hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
       hardcode_libdir_separator=:
       ;;
+    *nto* | *qnx*)
+      ;;
     openbsd*)
       if test -f /usr/libexec/ld.so; then
         hardcode_direct=yes
@@ -515,7 +520,12 @@ case "$host_os" in
     library_names_spec='$libname$shrext'
     ;;
   amigaos*)
-    library_names_spec='$libname.a'
+    case "$host_cpu" in
+      powerpc*)
+        library_names_spec='$libname$shrext' ;;
+      m68k)
+        library_names_spec='$libname.a' ;;
+    esac
     ;;
   beos*)
     library_names_spec='$libname$shrext'
@@ -534,19 +544,18 @@ case "$host_os" in
   dgux*)
     library_names_spec='$libname$shrext'
     ;;
-  freebsd1*)
+  freebsd[23].*)
+    library_names_spec='$libname$shrext$versuffix'
     ;;
   freebsd* | dragonfly*)
-    case "$host_os" in
-      freebsd[123]*)
-        library_names_spec='$libname$shrext$versuffix' ;;
-      *)
-        library_names_spec='$libname$shrext' ;;
-    esac
+    library_names_spec='$libname$shrext'
     ;;
   gnu*)
     library_names_spec='$libname$shrext'
     ;;
+  haiku*)
+    library_names_spec='$libname$shrext'
+    ;;
   hpux9* | hpux10* | hpux11*)
     case $host_cpu in
       ia64*)
@@ -582,7 +591,7 @@ case "$host_os" in
     ;;
   linux*oldld* | linux*aout* | linux*coff*)
     ;;
-  linux* | k*bsd*-gnu)
+  linux* | k*bsd*-gnu | kopensolaris*-gnu)
     library_names_spec='$libname$shrext'
     ;;
   knetbsd*-gnu)
@@ -594,7 +603,7 @@ case "$host_os" in
   newsos6)
     library_names_spec='$libname$shrext'
     ;;
-  nto-qnx*)
+  *nto* | *qnx*)
     library_names_spec='$libname$shrext'
     ;;
   openbsd*)
@@ -625,6 +634,9 @@ case "$host_os" in
   sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
     library_names_spec='$libname$shrext'
     ;;
+  tpf*)
+    library_names_spec='$libname$shrext'
+    ;;
   uts4*)
     library_names_spec='$libname$shrext'
     ;;
diff --git a/configure.ac b/configure.ac
index c598e59..38173aa 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 # This file is part of GNUnet.
-# (C) 2001-2011 Christian Grothoff (and other contributing authors)
+# (C) 2001-2011, 2022 Christian Grothoff (and other contributing authors)
 #
 # GNUnet is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published
@@ -21,7 +21,7 @@
 #
 AC_PREREQ(2.61)
 AC_INIT([gnunet-ext],[0.0.0],[bug-gnunet@gnu.org])
-AM_INIT_AUTOMAKE([gnunet-ext], [0.0.0])
+AM_INIT_AUTOMAKE([tar-ustar])
 AM_CONFIG_HEADER(gnunet_ext_config.h)
 
 AH_TOP([#define _GNU_SOURCE  1])
@@ -29,7 +29,6 @@ AH_TOP([#define _GNU_SOURCE  1])
 AC_ISC_POSIX
 AC_PROG_AWK
 AC_PROG_CC
-
 AC_PROG_MKDIR_P
 AC_PROG_CPP
 AC_PROG_INSTALL
@@ -111,15 +110,15 @@ esac
 AM_CONDITIONAL(MINGW,   test "$build_target" = "mingw")
 
 # check for gettext
-AM_GNU_GETTEXT_VERSION([0.18.1])
 AM_GNU_GETTEXT([external])
+AM_GNU_GETTEXT_VERSION([0.21])
 
 AC_CHECK_HEADERS([errno.h stdio.h unistd.h locale.h sys/stat.h sys/types.h 
langinfo.h libintl.h unistd.h stddef.h argz.h sys/socket.h netinet/in.h 
stdarg.h])
 
 # test for GNUnet core
 gnunet=0
 lookin=${prefix}
-backup_LDFLAGS="$LDFLAGS"      
+backup_LDFLAGS="$LDFLAGS"
 backup_CPPFLAGS="$CPPFLAGS"
 GNUNET_LDFLAGS=""
 GNUNET_CPPFLAGS=""
diff --git a/m4/gettext.m4 b/m4/gettext.m4
index f84e6a5..4f25a27 100644
--- a/m4/gettext.m4
+++ b/m4/gettext.m4
@@ -1,16 +1,16 @@
-# gettext.m4 serial 63 (gettext-0.18)
-dnl Copyright (C) 1995-2010 Free Software Foundation, Inc.
+# gettext.m4 serial 71 (gettext-0.20.2)
+dnl Copyright (C) 1995-2014, 2016, 2018-2020 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl
-dnl This file can can be used in projects which are not available under
-dnl the GNU General Public License or the GNU Library General Public
+dnl This file can be used in projects which are not available under
+dnl the GNU General Public License or the GNU Lesser General Public
 dnl License but which still want to provide support for the GNU gettext
 dnl functionality.
 dnl Please note that the actual code of the GNU gettext library is covered
-dnl by the GNU Library General Public License, and the rest of the GNU
-dnl gettext package package is covered by the GNU General Public License.
+dnl by the GNU Lesser General Public License, and the rest of the GNU
+dnl gettext package is covered by the GNU General Public License.
 dnl They are *not* in the public domain.
 
 dnl Authors:
@@ -20,22 +20,20 @@ dnl   Bruno Haible <haible@clisp.cons.org>, 2000-2006, 
2008-2010.
 dnl Macro to add for using GNU gettext.
 
 dnl Usage: AM_GNU_GETTEXT([INTLSYMBOL], [NEEDSYMBOL], [INTLDIR]).
-dnl INTLSYMBOL can be one of 'external', 'no-libtool', 'use-libtool'. The
-dnl    default (if it is not specified or empty) is 'no-libtool'.
-dnl    INTLSYMBOL should be 'external' for packages with no intl directory,
-dnl    and 'no-libtool' or 'use-libtool' for packages with an intl directory.
+dnl INTLSYMBOL must be one of 'external', 'use-libtool'.
+dnl    INTLSYMBOL should be 'external' for packages other than GNU gettext, and
+dnl    'use-libtool' for the packages 'gettext-runtime' and 'gettext-tools'.
 dnl    If INTLSYMBOL is 'use-libtool', then a libtool library
 dnl    $(top_builddir)/intl/libintl.la will be created (shared and/or static,
 dnl    depending on --{enable,disable}-{shared,static} and on the presence of
-dnl    AM-DISABLE-SHARED). If INTLSYMBOL is 'no-libtool', a static library
-dnl    $(top_builddir)/intl/libintl.a will be created.
+dnl    AM-DISABLE-SHARED).
 dnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext
 dnl    implementations (in libc or libintl) without the ngettext() function
 dnl    will be ignored.  If NEEDSYMBOL is specified and is
 dnl    'need-formatstring-macros', then GNU gettext implementations that don't
 dnl    support the ISO C 99 <inttypes.h> formatstring macros will be ignored.
 dnl INTLDIR is used to find the intl libraries.  If empty,
-dnl    the value `$(top_builddir)/intl/' is used.
+dnl    the value '$(top_builddir)/intl/' is used.
 dnl
 dnl The result of the configuration is one of three cases:
 dnl 1) GNU gettext, as included in the intl subdirectory, will be compiled
@@ -57,19 +55,17 @@ dnl
 AC_DEFUN([AM_GNU_GETTEXT],
 [
   dnl Argument checking.
-  ifelse([$1], [], , [ifelse([$1], [external], , [ifelse([$1], [no-libtool], , 
[ifelse([$1], [use-libtool], ,
+  ifelse([$1], [], , [ifelse([$1], [external], , [ifelse([$1], [use-libtool], ,
     [errprint([ERROR: invalid first argument to AM_GNU_GETTEXT
-])])])])])
+])])])])
   ifelse(ifelse([$1], [], [old])[]ifelse([$1], [no-libtool], [old]), [old],
-    [AC_DIAGNOSE([obsolete], [Use of AM_GNU_GETTEXT without [external] 
argument is deprecated.])])
+    [errprint([ERROR: Use of AM_GNU_GETTEXT without [external] argument is no 
longer supported.
+])])
   ifelse([$2], [], , [ifelse([$2], [need-ngettext], , [ifelse([$2], 
[need-formatstring-macros], ,
     [errprint([ERROR: invalid second argument to AM_GNU_GETTEXT
 ])])])])
   define([gt_included_intl],
-    ifelse([$1], [external],
-      ifdef([AM_GNU_GETTEXT_][INTL_SUBDIR], [yes], [no]),
-      [yes]))
-  define([gt_libtool_suffix_prefix], ifelse([$1], [use-libtool], [l], []))
+    ifelse([$1], [external], [no], [yes]))
   gt_NEEDS_INIT
   AM_GNU_GETTEXT_NEED([$2])
 
@@ -91,13 +87,12 @@ AC_DEFUN([AM_GNU_GETTEXT],
   dnl again, outside any 'if'. There are two solutions:
   dnl - Invoke AM_ICONV_LINKFLAGS_BODY here, outside any 'if'.
   dnl - Control the expansions in more detail using AC_PROVIDE_IFELSE.
-  dnl Since AC_PROVIDE_IFELSE is only in autoconf >= 2.52 and not
-  dnl documented, we avoid it.
+  dnl Since AC_PROVIDE_IFELSE is not documented, we avoid it.
   ifelse(gt_included_intl, yes, , [
     AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])
   ])
 
-  dnl Sometimes, on MacOS X, libintl requires linking with CoreFoundation.
+  dnl Sometimes, on Mac OS X, libintl requires linking with CoreFoundation.
   gt_INTL_MACOSX
 
   dnl Set USE_NLS.
@@ -157,12 +152,23 @@ changequote([,])dnl
         fi
 
         AC_CACHE_CHECK([for GNU gettext in libc], [$gt_func_gnugettext_libc],
-         [AC_TRY_LINK([#include <libintl.h>
-$gt_revision_test_code
+         [AC_LINK_IFELSE(
+            [AC_LANG_PROGRAM(
+               [[
+#include <libintl.h>
+#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
 extern int _nl_msg_cat_cntr;
-extern int *_nl_domain_bindings;],
-            [bindtextdomain ("", "");
-return * gettext ("")$gt_expression_test_code + _nl_msg_cat_cntr + 
*_nl_domain_bindings],
+extern int *_nl_domain_bindings;
+#define __GNU_GETTEXT_SYMBOL_EXPRESSION (_nl_msg_cat_cntr + 
*_nl_domain_bindings)
+#else
+#define __GNU_GETTEXT_SYMBOL_EXPRESSION 0
+#endif
+$gt_revision_test_code
+               ]],
+               [[
+bindtextdomain ("", "");
+return * gettext ("")$gt_expression_test_code + __GNU_GETTEXT_SYMBOL_EXPRESSION
+               ]])],
             [eval "$gt_func_gnugettext_libc=yes"],
             [eval "$gt_func_gnugettext_libc=no"])])
 
@@ -183,35 +189,57 @@ return * gettext ("")$gt_expression_test_code + 
_nl_msg_cat_cntr + *_nl_domain_b
             gt_save_LIBS="$LIBS"
             LIBS="$LIBS $LIBINTL"
             dnl Now see whether libintl exists and does not depend on libiconv.
-            AC_TRY_LINK([#include <libintl.h>
-$gt_revision_test_code
+            AC_LINK_IFELSE(
+              [AC_LANG_PROGRAM(
+                 [[
+#include <libintl.h>
+#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
 extern int _nl_msg_cat_cntr;
 extern
 #ifdef __cplusplus
 "C"
 #endif
-const char *_nl_expand_alias (const char *);],
-              [bindtextdomain ("", "");
-return * gettext ("")$gt_expression_test_code + _nl_msg_cat_cntr + 
*_nl_expand_alias ("")],
+const char *_nl_expand_alias (const char *);
+#define __GNU_GETTEXT_SYMBOL_EXPRESSION (_nl_msg_cat_cntr + *_nl_expand_alias 
(""))
+#else
+#define __GNU_GETTEXT_SYMBOL_EXPRESSION 0
+#endif
+$gt_revision_test_code
+                 ]],
+                 [[
+bindtextdomain ("", "");
+return * gettext ("")$gt_expression_test_code + __GNU_GETTEXT_SYMBOL_EXPRESSION
+                 ]])],
               [eval "$gt_func_gnugettext_libintl=yes"],
               [eval "$gt_func_gnugettext_libintl=no"])
             dnl Now see whether libintl exists and depends on libiconv.
             if { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" 
!= yes; } && test -n "$LIBICONV"; then
               LIBS="$LIBS $LIBICONV"
-              AC_TRY_LINK([#include <libintl.h>
-$gt_revision_test_code
+              AC_LINK_IFELSE(
+                [AC_LANG_PROGRAM(
+                   [[
+#include <libintl.h>
+#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
 extern int _nl_msg_cat_cntr;
 extern
 #ifdef __cplusplus
 "C"
 #endif
-const char *_nl_expand_alias (const char *);],
-                [bindtextdomain ("", "");
-return * gettext ("")$gt_expression_test_code + _nl_msg_cat_cntr + 
*_nl_expand_alias ("")],
-               [LIBINTL="$LIBINTL $LIBICONV"
-                LTLIBINTL="$LTLIBINTL $LTLIBICONV"
-                eval "$gt_func_gnugettext_libintl=yes"
-               ])
+const char *_nl_expand_alias (const char *);
+#define __GNU_GETTEXT_SYMBOL_EXPRESSION (_nl_msg_cat_cntr + *_nl_expand_alias 
(""))
+#else
+#define __GNU_GETTEXT_SYMBOL_EXPRESSION 0
+#endif
+$gt_revision_test_code
+                   ]],
+                   [[
+bindtextdomain ("", "");
+return * gettext ("")$gt_expression_test_code + __GNU_GETTEXT_SYMBOL_EXPRESSION
+                   ]])],
+                [LIBINTL="$LIBINTL $LIBICONV"
+                 LTLIBINTL="$LTLIBINTL $LTLIBICONV"
+                 eval "$gt_func_gnugettext_libintl=yes"
+                ])
             fi
             CPPFLAGS="$gt_save_CPPFLAGS"
             LIBS="$gt_save_LIBS"])
@@ -245,8 +273,8 @@ return * gettext ("")$gt_expression_test_code + 
_nl_msg_cat_cntr + *_nl_expand_a
         dnl Mark actions used to generate GNU NLS library.
         BUILD_INCLUDED_LIBINTL=yes
         USE_INCLUDED_LIBINTL=yes
-        
LIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a
 $LIBICONV $LIBTHREAD"
-        
LTLIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a
 $LTLIBICONV $LTLIBTHREAD"
+        LIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.la 
$LIBICONV $LIBTHREAD"
+        LTLIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.la 
$LTLIBICONV $LTLIBTHREAD"
         LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'`
       fi
 
@@ -314,43 +342,14 @@ return * gettext ("")$gt_expression_test_code + 
_nl_msg_cat_cntr + *_nl_expand_a
   fi
 
   ifelse(gt_included_intl, yes, [
-    dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL
-    dnl to 'yes' because some of the testsuite requires it.
-    if test "$PACKAGE" = gettext-runtime || test "$PACKAGE" = gettext-tools; 
then
-      BUILD_INCLUDED_LIBINTL=yes
-    fi
+    dnl In GNU gettext we have to set BUILD_INCLUDED_LIBINTL to 'yes'
+    dnl because some of the testsuite requires it.
+    BUILD_INCLUDED_LIBINTL=yes
 
     dnl Make all variables we use known to autoconf.
     AC_SUBST([BUILD_INCLUDED_LIBINTL])
     AC_SUBST([USE_INCLUDED_LIBINTL])
     AC_SUBST([CATOBJEXT])
-
-    dnl For backward compatibility. Some configure.ins may be using this.
-    nls_cv_header_intl=
-    nls_cv_header_libgt=
-
-    dnl For backward compatibility. Some Makefiles may be using this.
-    DATADIRNAME=share
-    AC_SUBST([DATADIRNAME])
-
-    dnl For backward compatibility. Some Makefiles may be using this.
-    INSTOBJEXT=.mo
-    AC_SUBST([INSTOBJEXT])
-
-    dnl For backward compatibility. Some Makefiles may be using this.
-    GENCAT=gencat
-    AC_SUBST([GENCAT])
-
-    dnl For backward compatibility. Some Makefiles may be using this.
-    INTLOBJS=
-    if test "$USE_INCLUDED_LIBINTL" = yes; then
-      INTLOBJS="\$(GETTOBJS)"
-    fi
-    AC_SUBST([INTLOBJS])
-
-    dnl Enable libtool support if the surrounding package wishes it.
-    INTL_LIBTOOL_SUFFIX_PREFIX=gt_libtool_suffix_prefix
-    AC_SUBST([INTL_LIBTOOL_SUFFIX_PREFIX])
   ])
 
   dnl For backward compatibility. Some Makefiles may be using this.
@@ -381,3 +380,7 @@ AC_DEFUN([AM_GNU_GETTEXT_NEED],
 
 dnl Usage: AM_GNU_GETTEXT_VERSION([gettext-version])
 AC_DEFUN([AM_GNU_GETTEXT_VERSION], [])
+
+
+dnl Usage: AM_GNU_GETTEXT_REQUIRE_VERSION([gettext-version])
+AC_DEFUN([AM_GNU_GETTEXT_REQUIRE_VERSION], [])
diff --git a/m4/host-cpu-c-abi.m4 b/m4/host-cpu-c-abi.m4
new file mode 100644
index 0000000..6db2aa2
--- /dev/null
+++ b/m4/host-cpu-c-abi.m4
@@ -0,0 +1,675 @@
+# host-cpu-c-abi.m4 serial 13
+dnl Copyright (C) 2002-2020 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Bruno Haible and Sam Steingold.
+
+dnl Sets the HOST_CPU variable to the canonical name of the CPU.
+dnl Sets the HOST_CPU_C_ABI variable to the canonical name of the CPU with its
+dnl C language ABI (application binary interface).
+dnl Also defines __${HOST_CPU}__ and __${HOST_CPU_C_ABI}__ as C macros in
+dnl config.h.
+dnl
+dnl This canonical name can be used to select a particular assembly language
+dnl source file that will interoperate with C code on the given host.
+dnl
+dnl For example:
+dnl * 'i386' and 'sparc' are different canonical names, because code for i386
+dnl   will not run on SPARC CPUs and vice versa. They have different
+dnl   instruction sets.
+dnl * 'sparc' and 'sparc64' are different canonical names, because code for
+dnl   'sparc' and code for 'sparc64' cannot be linked together: 'sparc' code
+dnl   contains 32-bit instructions, whereas 'sparc64' code contains 64-bit
+dnl   instructions. A process on a SPARC CPU can be in 32-bit mode or in 64-bit
+dnl   mode, but not both.
+dnl * 'mips' and 'mipsn32' are different canonical names, because they use
+dnl   different argument passing and return conventions for C functions, and
+dnl   although the instruction set of 'mips' is a large subset of the
+dnl   instruction set of 'mipsn32'.
+dnl * 'mipsn32' and 'mips64' are different canonical names, because they use
+dnl   different sizes for the C types like 'int' and 'void *', and although
+dnl   the instruction sets of 'mipsn32' and 'mips64' are the same.
+dnl * The same canonical name is used for different endiannesses. You can
+dnl   determine the endianness through preprocessor symbols:
+dnl   - 'arm': test __ARMEL__.
+dnl   - 'mips', 'mipsn32', 'mips64': test _MIPSEB vs. _MIPSEL.
+dnl   - 'powerpc64': test _BIG_ENDIAN vs. _LITTLE_ENDIAN.
+dnl * The same name 'i386' is used for CPUs of type i386, i486, i586
+dnl   (Pentium), AMD K7, Pentium II, Pentium IV, etc., because
+dnl   - Instructions that do not exist on all of these CPUs (cmpxchg,
+dnl     MMX, SSE, SSE2, 3DNow! etc.) are not frequently used. If your
+dnl     assembly language source files use such instructions, you will
+dnl     need to make the distinction.
+dnl   - Speed of execution of the common instruction set is reasonable across
+dnl     the entire family of CPUs. If you have assembly language source files
+dnl     that are optimized for particular CPU types (like GNU gmp has), you
+dnl     will need to make the distinction.
+dnl   See <https://en.wikipedia.org/wiki/X86_instruction_listings>.
+AC_DEFUN([gl_HOST_CPU_C_ABI],
+[
+  AC_REQUIRE([AC_CANONICAL_HOST])
+  AC_REQUIRE([gl_C_ASM])
+  AC_CACHE_CHECK([host CPU and C ABI], [gl_cv_host_cpu_c_abi],
+    [case "$host_cpu" in
+
+changequote(,)dnl
+       i[34567]86 )
+changequote([,])dnl
+         gl_cv_host_cpu_c_abi=i386
+         ;;
+
+       x86_64 )
+         # On x86_64 systems, the C compiler may be generating code in one of
+         # these ABIs:
+         # - 64-bit instruction set, 64-bit pointers, 64-bit 'long': x86_64.
+         # - 64-bit instruction set, 64-bit pointers, 32-bit 'long': x86_64
+         #   with native Windows (mingw, MSVC).
+         # - 64-bit instruction set, 32-bit pointers, 32-bit 'long': 
x86_64-x32.
+         # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': i386.
+         AC_COMPILE_IFELSE(
+           [AC_LANG_SOURCE(
+              [[#if (defined __x86_64__ || defined __amd64__ \
+                     || defined _M_X64 || defined _M_AMD64)
+                 int ok;
+                #else
+                 error fail
+                #endif
+              ]])],
+           [AC_COMPILE_IFELSE(
+              [AC_LANG_SOURCE(
+                 [[#if defined __ILP32__ || defined _ILP32
+                    int ok;
+                   #else
+                    error fail
+                   #endif
+                 ]])],
+              [gl_cv_host_cpu_c_abi=x86_64-x32],
+              [gl_cv_host_cpu_c_abi=x86_64])],
+           [gl_cv_host_cpu_c_abi=i386])
+         ;;
+
+changequote(,)dnl
+       alphaev[4-8] | alphaev56 | alphapca5[67] | alphaev6[78] )
+changequote([,])dnl
+         gl_cv_host_cpu_c_abi=alpha
+         ;;
+
+       arm* | aarch64 )
+         # Assume arm with EABI.
+         # On arm64 systems, the C compiler may be generating code in one of
+         # these ABIs:
+         # - aarch64 instruction set, 64-bit pointers, 64-bit 'long': arm64.
+         # - aarch64 instruction set, 32-bit pointers, 32-bit 'long': 
arm64-ilp32.
+         # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': arm or 
armhf.
+         AC_COMPILE_IFELSE(
+           [AC_LANG_SOURCE(
+              [[#ifdef __aarch64__
+                 int ok;
+                #else
+                 error fail
+                #endif
+              ]])],
+           [AC_COMPILE_IFELSE(
+              [AC_LANG_SOURCE(
+                [[#if defined __ILP32__ || defined _ILP32
+                   int ok;
+                  #else
+                   error fail
+                  #endif
+                ]])],
+              [gl_cv_host_cpu_c_abi=arm64-ilp32],
+              [gl_cv_host_cpu_c_abi=arm64])],
+           [# Don't distinguish little-endian and big-endian arm, since they
+            # don't require different machine code for simple operations and
+            # since the user can distinguish them through the preprocessor
+            # defines __ARMEL__ vs. __ARMEB__.
+            # But distinguish arm which passes floating-point arguments and
+            # return values in integer registers (r0, r1, ...) - this is
+            # gcc -mfloat-abi=soft or gcc -mfloat-abi=softfp - from arm which
+            # passes them in float registers (s0, s1, ...) and double registers
+            # (d0, d1, ...) - this is gcc -mfloat-abi=hard. GCC 4.6 or newer
+            # sets the preprocessor defines __ARM_PCS (for the first case) and
+            # __ARM_PCS_VFP (for the second case), but older GCC does not.
+            echo 'double ddd; void func (double dd) { ddd = dd; }' > conftest.c
+            # Look for a reference to the register d0 in the .s file.
+            AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS $gl_c_asm_opt 
conftest.c) >/dev/null 2>&1
+            if LC_ALL=C grep 'd0,' conftest.$gl_asmext >/dev/null; then
+              gl_cv_host_cpu_c_abi=armhf
+            else
+              gl_cv_host_cpu_c_abi=arm
+            fi
+            rm -f conftest*
+           ])
+         ;;
+
+       hppa1.0 | hppa1.1 | hppa2.0* | hppa64 )
+         # On hppa, the C compiler may be generating 32-bit code or 64-bit
+         # code. In the latter case, it defines _LP64 and __LP64__.
+         AC_COMPILE_IFELSE(
+           [AC_LANG_SOURCE(
+              [[#ifdef __LP64__
+                 int ok;
+                #else
+                 error fail
+                #endif
+              ]])],
+           [gl_cv_host_cpu_c_abi=hppa64],
+           [gl_cv_host_cpu_c_abi=hppa])
+         ;;
+
+       ia64* )
+         # On ia64 on HP-UX, the C compiler may be generating 64-bit code or
+         # 32-bit code. In the latter case, it defines _ILP32.
+         AC_COMPILE_IFELSE(
+           [AC_LANG_SOURCE(
+              [[#ifdef _ILP32
+                 int ok;
+                #else
+                 error fail
+                #endif
+              ]])],
+           [gl_cv_host_cpu_c_abi=ia64-ilp32],
+           [gl_cv_host_cpu_c_abi=ia64])
+         ;;
+
+       mips* )
+         # We should also check for (_MIPS_SZPTR == 64), but gcc keeps this
+         # at 32.
+         AC_COMPILE_IFELSE(
+           [AC_LANG_SOURCE(
+              [[#if defined _MIPS_SZLONG && (_MIPS_SZLONG == 64)
+                 int ok;
+                #else
+                 error fail
+                #endif
+              ]])],
+           [gl_cv_host_cpu_c_abi=mips64],
+           [# In the n32 ABI, _ABIN32 is defined, _ABIO32 is not defined (but
+            # may later get defined by <sgidefs.h>), and _MIPS_SIM == _ABIN32.
+            # In the 32 ABI, _ABIO32 is defined, _ABIN32 is not defined (but
+            # may later get defined by <sgidefs.h>), and _MIPS_SIM == _ABIO32.
+            AC_COMPILE_IFELSE(
+              [AC_LANG_SOURCE(
+                 [[#if (_MIPS_SIM == _ABIN32)
+                    int ok;
+                   #else
+                    error fail
+                   #endif
+                 ]])],
+              [gl_cv_host_cpu_c_abi=mipsn32],
+              [gl_cv_host_cpu_c_abi=mips])])
+         ;;
+
+       powerpc* )
+         # Different ABIs are in use on AIX vs. Mac OS X vs. Linux,*BSD.
+         # No need to distinguish them here; the caller may distinguish
+         # them based on the OS.
+         # On powerpc64 systems, the C compiler may still be generating
+         # 32-bit code. And on powerpc-ibm-aix systems, the C compiler may
+         # be generating 64-bit code.
+         AC_COMPILE_IFELSE(
+           [AC_LANG_SOURCE(
+              [[#if defined __powerpc64__ || defined _ARCH_PPC64
+                 int ok;
+                #else
+                 error fail
+                #endif
+              ]])],
+           [# On powerpc64, there are two ABIs on Linux: The AIX compatible
+            # one and the ELFv2 one. The latter defines _CALL_ELF=2.
+            AC_COMPILE_IFELSE(
+              [AC_LANG_SOURCE(
+                 [[#if defined _CALL_ELF && _CALL_ELF == 2
+                    int ok;
+                   #else
+                    error fail
+                   #endif
+                 ]])],
+              [gl_cv_host_cpu_c_abi=powerpc64-elfv2],
+              [gl_cv_host_cpu_c_abi=powerpc64])
+           ],
+           [gl_cv_host_cpu_c_abi=powerpc])
+         ;;
+
+       rs6000 )
+         gl_cv_host_cpu_c_abi=powerpc
+         ;;
+
+       riscv32 | riscv64 )
+         # There are 2 architectures (with variants): rv32* and rv64*.
+         AC_COMPILE_IFELSE(
+           [AC_LANG_SOURCE(
+              [[#if __riscv_xlen == 64
+                  int ok;
+                #else
+                  error fail
+                #endif
+              ]])],
+           [cpu=riscv64],
+           [cpu=riscv32])
+         # There are 6 ABIs: ilp32, ilp32f, ilp32d, lp64, lp64f, lp64d.
+         # Size of 'long' and 'void *':
+         AC_COMPILE_IFELSE(
+           [AC_LANG_SOURCE(
+              [[#if defined __LP64__
+                  int ok;
+                #else
+                  error fail
+                #endif
+              ]])],
+           [main_abi=lp64],
+           [main_abi=ilp32])
+         # Float ABIs:
+         # __riscv_float_abi_double:
+         #   'float' and 'double' are passed in floating-point registers.
+         # __riscv_float_abi_single:
+         #   'float' are passed in floating-point registers.
+         # __riscv_float_abi_soft:
+         #   No values are passed in floating-point registers.
+         AC_COMPILE_IFELSE(
+           [AC_LANG_SOURCE(
+              [[#if defined __riscv_float_abi_double
+                  int ok;
+                #else
+                  error fail
+                #endif
+              ]])],
+           [float_abi=d],
+           [AC_COMPILE_IFELSE(
+              [AC_LANG_SOURCE(
+                 [[#if defined __riscv_float_abi_single
+                     int ok;
+                   #else
+                     error fail
+                   #endif
+                 ]])],
+              [float_abi=f],
+              [float_abi=''])
+           ])
+         gl_cv_host_cpu_c_abi="${cpu}-${main_abi}${float_abi}"
+         ;;
+
+       s390* )
+         # On s390x, the C compiler may be generating 64-bit (= s390x) code
+         # or 31-bit (= s390) code.
+         AC_COMPILE_IFELSE(
+           [AC_LANG_SOURCE(
+              [[#if defined __LP64__ || defined __s390x__
+                  int ok;
+                #else
+                  error fail
+                #endif
+              ]])],
+           [gl_cv_host_cpu_c_abi=s390x],
+           [gl_cv_host_cpu_c_abi=s390])
+         ;;
+
+       sparc | sparc64 )
+         # UltraSPARCs running Linux have `uname -m` = "sparc64", but the
+         # C compiler still generates 32-bit code.
+         AC_COMPILE_IFELSE(
+           [AC_LANG_SOURCE(
+              [[#if defined __sparcv9 || defined __arch64__
+                 int ok;
+                #else
+                 error fail
+                #endif
+              ]])],
+           [gl_cv_host_cpu_c_abi=sparc64],
+           [gl_cv_host_cpu_c_abi=sparc])
+         ;;
+
+       *)
+         gl_cv_host_cpu_c_abi="$host_cpu"
+         ;;
+     esac
+    ])
+
+  dnl In most cases, $HOST_CPU and $HOST_CPU_C_ABI are the same.
+  HOST_CPU=`echo "$gl_cv_host_cpu_c_abi" | sed -e 's/-.*//'`
+  HOST_CPU_C_ABI="$gl_cv_host_cpu_c_abi"
+  AC_SUBST([HOST_CPU])
+  AC_SUBST([HOST_CPU_C_ABI])
+
+  # This was
+  #   AC_DEFINE_UNQUOTED([__${HOST_CPU}__])
+  #   AC_DEFINE_UNQUOTED([__${HOST_CPU_C_ABI}__])
+  # earlier, but KAI C++ 3.2d doesn't like this.
+  sed -e 's/-/_/g' >> confdefs.h <<EOF
+#ifndef __${HOST_CPU}__
+#define __${HOST_CPU}__ 1
+#endif
+#ifndef __${HOST_CPU_C_ABI}__
+#define __${HOST_CPU_C_ABI}__ 1
+#endif
+EOF
+  AH_TOP([/* CPU and C ABI indicator */
+#ifndef __i386__
+#undef __i386__
+#endif
+#ifndef __x86_64_x32__
+#undef __x86_64_x32__
+#endif
+#ifndef __x86_64__
+#undef __x86_64__
+#endif
+#ifndef __alpha__
+#undef __alpha__
+#endif
+#ifndef __arm__
+#undef __arm__
+#endif
+#ifndef __armhf__
+#undef __armhf__
+#endif
+#ifndef __arm64_ilp32__
+#undef __arm64_ilp32__
+#endif
+#ifndef __arm64__
+#undef __arm64__
+#endif
+#ifndef __hppa__
+#undef __hppa__
+#endif
+#ifndef __hppa64__
+#undef __hppa64__
+#endif
+#ifndef __ia64_ilp32__
+#undef __ia64_ilp32__
+#endif
+#ifndef __ia64__
+#undef __ia64__
+#endif
+#ifndef __m68k__
+#undef __m68k__
+#endif
+#ifndef __mips__
+#undef __mips__
+#endif
+#ifndef __mipsn32__
+#undef __mipsn32__
+#endif
+#ifndef __mips64__
+#undef __mips64__
+#endif
+#ifndef __powerpc__
+#undef __powerpc__
+#endif
+#ifndef __powerpc64__
+#undef __powerpc64__
+#endif
+#ifndef __powerpc64_elfv2__
+#undef __powerpc64_elfv2__
+#endif
+#ifndef __riscv32__
+#undef __riscv32__
+#endif
+#ifndef __riscv64__
+#undef __riscv64__
+#endif
+#ifndef __riscv32_ilp32__
+#undef __riscv32_ilp32__
+#endif
+#ifndef __riscv32_ilp32f__
+#undef __riscv32_ilp32f__
+#endif
+#ifndef __riscv32_ilp32d__
+#undef __riscv32_ilp32d__
+#endif
+#ifndef __riscv64_ilp32__
+#undef __riscv64_ilp32__
+#endif
+#ifndef __riscv64_ilp32f__
+#undef __riscv64_ilp32f__
+#endif
+#ifndef __riscv64_ilp32d__
+#undef __riscv64_ilp32d__
+#endif
+#ifndef __riscv64_lp64__
+#undef __riscv64_lp64__
+#endif
+#ifndef __riscv64_lp64f__
+#undef __riscv64_lp64f__
+#endif
+#ifndef __riscv64_lp64d__
+#undef __riscv64_lp64d__
+#endif
+#ifndef __s390__
+#undef __s390__
+#endif
+#ifndef __s390x__
+#undef __s390x__
+#endif
+#ifndef __sh__
+#undef __sh__
+#endif
+#ifndef __sparc__
+#undef __sparc__
+#endif
+#ifndef __sparc64__
+#undef __sparc64__
+#endif
+])
+
+])
+
+
+dnl Sets the HOST_CPU_C_ABI_32BIT variable to 'yes' if the C language ABI
+dnl (application binary interface) is a 32-bit one, to 'no' if it is a 64-bit
+dnl one, or to 'unknown' if unknown.
+dnl This is a simplified variant of gl_HOST_CPU_C_ABI.
+AC_DEFUN([gl_HOST_CPU_C_ABI_32BIT],
+[
+  AC_REQUIRE([AC_CANONICAL_HOST])
+  AC_CACHE_CHECK([32-bit host C ABI], [gl_cv_host_cpu_c_abi_32bit],
+    [if test -n "$gl_cv_host_cpu_c_abi"; then
+       case "$gl_cv_host_cpu_c_abi" in
+         i386 | x86_64-x32 | arm | armhf | arm64-ilp32 | hppa | ia64-ilp32 | 
mips | mipsn32 | powerpc | riscv*-ilp32* | s390 | sparc)
+           gl_cv_host_cpu_c_abi_32bit=yes ;;
+         x86_64 | alpha | arm64 | hppa64 | ia64 | mips64 | powerpc64 | 
powerpc64-elfv2 | riscv*-lp64* | s390x | sparc64 )
+           gl_cv_host_cpu_c_abi_32bit=no ;;
+         *)
+           gl_cv_host_cpu_c_abi_32bit=unknown ;;
+       esac
+     else
+       case "$host_cpu" in
+
+         # CPUs that only support a 32-bit ABI.
+         arc \
+         | bfin \
+         | cris* \
+         | csky \
+         | epiphany \
+         | ft32 \
+         | h8300 \
+         | m68k \
+         | microblaze | microblazeel \
+         | nds32 | nds32le | nds32be \
+         | nios2 | nios2eb | nios2el \
+         | or1k* \
+         | or32 \
+         | sh | sh[1234] | sh[1234]e[lb] \
+         | tic6x \
+         | xtensa* )
+           gl_cv_host_cpu_c_abi_32bit=yes
+           ;;
+
+         # CPUs that only support a 64-bit ABI.
+changequote(,)dnl
+         alpha | alphaev[4-8] | alphaev56 | alphapca5[67] | alphaev6[78] \
+         | mmix )
+changequote([,])dnl
+           gl_cv_host_cpu_c_abi_32bit=no
+           ;;
+
+changequote(,)dnl
+         i[34567]86 )
+changequote([,])dnl
+           gl_cv_host_cpu_c_abi_32bit=yes
+           ;;
+
+         x86_64 )
+           # On x86_64 systems, the C compiler may be generating code in one of
+           # these ABIs:
+           # - 64-bit instruction set, 64-bit pointers, 64-bit 'long': x86_64.
+           # - 64-bit instruction set, 64-bit pointers, 32-bit 'long': x86_64
+           #   with native Windows (mingw, MSVC).
+           # - 64-bit instruction set, 32-bit pointers, 32-bit 'long': 
x86_64-x32.
+           # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': i386.
+           AC_COMPILE_IFELSE(
+             [AC_LANG_SOURCE(
+                [[#if (defined __x86_64__ || defined __amd64__ \
+                       || defined _M_X64 || defined _M_AMD64) \
+                      && !(defined __ILP32__ || defined _ILP32)
+                   int ok;
+                  #else
+                   error fail
+                  #endif
+                ]])],
+             [gl_cv_host_cpu_c_abi_32bit=no],
+             [gl_cv_host_cpu_c_abi_32bit=yes])
+           ;;
+
+         arm* | aarch64 )
+           # Assume arm with EABI.
+           # On arm64 systems, the C compiler may be generating code in one of
+           # these ABIs:
+           # - aarch64 instruction set, 64-bit pointers, 64-bit 'long': arm64.
+           # - aarch64 instruction set, 32-bit pointers, 32-bit 'long': 
arm64-ilp32.
+           # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': arm or 
armhf.
+           AC_COMPILE_IFELSE(
+             [AC_LANG_SOURCE(
+                [[#if defined __aarch64__ && !(defined __ILP32__ || defined 
_ILP32)
+                   int ok;
+                  #else
+                   error fail
+                  #endif
+                ]])],
+             [gl_cv_host_cpu_c_abi_32bit=no],
+             [gl_cv_host_cpu_c_abi_32bit=yes])
+           ;;
+
+         hppa1.0 | hppa1.1 | hppa2.0* | hppa64 )
+           # On hppa, the C compiler may be generating 32-bit code or 64-bit
+           # code. In the latter case, it defines _LP64 and __LP64__.
+           AC_COMPILE_IFELSE(
+             [AC_LANG_SOURCE(
+                [[#ifdef __LP64__
+                   int ok;
+                  #else
+                   error fail
+                  #endif
+                ]])],
+             [gl_cv_host_cpu_c_abi_32bit=no],
+             [gl_cv_host_cpu_c_abi_32bit=yes])
+           ;;
+
+         ia64* )
+           # On ia64 on HP-UX, the C compiler may be generating 64-bit code or
+           # 32-bit code. In the latter case, it defines _ILP32.
+           AC_COMPILE_IFELSE(
+             [AC_LANG_SOURCE(
+                [[#ifdef _ILP32
+                   int ok;
+                  #else
+                   error fail
+                  #endif
+                ]])],
+             [gl_cv_host_cpu_c_abi_32bit=yes],
+             [gl_cv_host_cpu_c_abi_32bit=no])
+           ;;
+
+         mips* )
+           # We should also check for (_MIPS_SZPTR == 64), but gcc keeps this
+           # at 32.
+           AC_COMPILE_IFELSE(
+             [AC_LANG_SOURCE(
+                [[#if defined _MIPS_SZLONG && (_MIPS_SZLONG == 64)
+                   int ok;
+                  #else
+                   error fail
+                  #endif
+                ]])],
+             [gl_cv_host_cpu_c_abi_32bit=no],
+             [gl_cv_host_cpu_c_abi_32bit=yes])
+           ;;
+
+         powerpc* )
+           # Different ABIs are in use on AIX vs. Mac OS X vs. Linux,*BSD.
+           # No need to distinguish them here; the caller may distinguish
+           # them based on the OS.
+           # On powerpc64 systems, the C compiler may still be generating
+           # 32-bit code. And on powerpc-ibm-aix systems, the C compiler may
+           # be generating 64-bit code.
+           AC_COMPILE_IFELSE(
+             [AC_LANG_SOURCE(
+                [[#if defined __powerpc64__ || defined _ARCH_PPC64
+                   int ok;
+                  #else
+                   error fail
+                  #endif
+                ]])],
+             [gl_cv_host_cpu_c_abi_32bit=no],
+             [gl_cv_host_cpu_c_abi_32bit=yes])
+           ;;
+
+         rs6000 )
+           gl_cv_host_cpu_c_abi_32bit=yes
+           ;;
+
+         riscv32 | riscv64 )
+           # There are 6 ABIs: ilp32, ilp32f, ilp32d, lp64, lp64f, lp64d.
+           # Size of 'long' and 'void *':
+           AC_COMPILE_IFELSE(
+             [AC_LANG_SOURCE(
+                [[#if defined __LP64__
+                    int ok;
+                  #else
+                    error fail
+                  #endif
+                ]])],
+             [gl_cv_host_cpu_c_abi_32bit=no],
+             [gl_cv_host_cpu_c_abi_32bit=yes])
+           ;;
+
+         s390* )
+           # On s390x, the C compiler may be generating 64-bit (= s390x) code
+           # or 31-bit (= s390) code.
+           AC_COMPILE_IFELSE(
+             [AC_LANG_SOURCE(
+                [[#if defined __LP64__ || defined __s390x__
+                    int ok;
+                  #else
+                    error fail
+                  #endif
+                ]])],
+             [gl_cv_host_cpu_c_abi_32bit=no],
+             [gl_cv_host_cpu_c_abi_32bit=yes])
+           ;;
+
+         sparc | sparc64 )
+           # UltraSPARCs running Linux have `uname -m` = "sparc64", but the
+           # C compiler still generates 32-bit code.
+           AC_COMPILE_IFELSE(
+             [AC_LANG_SOURCE(
+                [[#if defined __sparcv9 || defined __arch64__
+                   int ok;
+                  #else
+                   error fail
+                  #endif
+                ]])],
+             [gl_cv_host_cpu_c_abi_32bit=no],
+             [gl_cv_host_cpu_c_abi_32bit=yes])
+           ;;
+
+         *)
+           gl_cv_host_cpu_c_abi_32bit=unknown
+           ;;
+       esac
+     fi
+    ])
+
+  HOST_CPU_C_ABI_32BIT="$gl_cv_host_cpu_c_abi_32bit"
+])
diff --git a/m4/iconv.m4 b/m4/iconv.m4
index e2041b9..e593b72 100644
--- a/m4/iconv.m4
+++ b/m4/iconv.m4
@@ -1,5 +1,6 @@
-# iconv.m4 serial 11 (gettext-0.18.1)
-dnl Copyright (C) 2000-2002, 2007-2010 Free Software Foundation, Inc.
+# iconv.m4 serial 21
+dnl Copyright (C) 2000-2002, 2007-2014, 2016-2020 Free Software Foundation,
+dnl Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -30,27 +31,35 @@ AC_DEFUN([AM_ICONV_LINK],
   dnl Add $INCICONV to CPPFLAGS before performing the following checks,
   dnl because if the user has installed libiconv and not disabled its use
   dnl via --without-libiconv-prefix, he wants to use it. The first
-  dnl AC_TRY_LINK will then fail, the second AC_TRY_LINK will succeed.
+  dnl AC_LINK_IFELSE will then fail, the second AC_LINK_IFELSE will succeed.
   am_save_CPPFLAGS="$CPPFLAGS"
   AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCICONV])
 
   AC_CACHE_CHECK([for iconv], [am_cv_func_iconv], [
     am_cv_func_iconv="no, consider installing GNU libiconv"
     am_cv_lib_iconv=no
-    AC_TRY_LINK([#include <stdlib.h>
-#include <iconv.h>],
-      [iconv_t cd = iconv_open("","");
-       iconv(cd,NULL,NULL,NULL,NULL);
-       iconv_close(cd);],
+    AC_LINK_IFELSE(
+      [AC_LANG_PROGRAM(
+         [[
+#include <stdlib.h>
+#include <iconv.h>
+         ]],
+         [[iconv_t cd = iconv_open("","");
+           iconv(cd,NULL,NULL,NULL,NULL);
+           iconv_close(cd);]])],
       [am_cv_func_iconv=yes])
     if test "$am_cv_func_iconv" != yes; then
       am_save_LIBS="$LIBS"
       LIBS="$LIBS $LIBICONV"
-      AC_TRY_LINK([#include <stdlib.h>
-#include <iconv.h>],
-        [iconv_t cd = iconv_open("","");
-         iconv(cd,NULL,NULL,NULL,NULL);
-         iconv_close(cd);],
+      AC_LINK_IFELSE(
+        [AC_LANG_PROGRAM(
+           [[
+#include <stdlib.h>
+#include <iconv.h>
+           ]],
+           [[iconv_t cd = iconv_open("","");
+             iconv(cd,NULL,NULL,NULL,NULL);
+             iconv_close(cd);]])],
         [am_cv_lib_iconv=yes]
         [am_cv_func_iconv=yes])
       LIBS="$am_save_LIBS"
@@ -58,33 +67,43 @@ AC_DEFUN([AM_ICONV_LINK],
   ])
   if test "$am_cv_func_iconv" = yes; then
     AC_CACHE_CHECK([for working iconv], [am_cv_func_iconv_works], [
-      dnl This tests against bugs in AIX 5.1, HP-UX 11.11, Solaris 10.
+      dnl This tests against bugs in AIX 5.1, AIX 6.1..7.1, HP-UX 11.11,
+      dnl Solaris 10.
       am_save_LIBS="$LIBS"
       if test $am_cv_lib_iconv = yes; then
         LIBS="$LIBS $LIBICONV"
       fi
-      AC_TRY_RUN([
+      am_cv_func_iconv_works=no
+      for ac_iconv_const in '' 'const'; do
+        AC_RUN_IFELSE(
+          [AC_LANG_PROGRAM(
+             [[
 #include <iconv.h>
 #include <string.h>
-int main ()
-{
+
+#ifndef ICONV_CONST
+# define ICONV_CONST $ac_iconv_const
+#endif
+             ]],
+             [[int result = 0;
   /* Test against AIX 5.1 bug: Failures are not distinguishable from successful
      returns.  */
   {
     iconv_t cd_utf8_to_88591 = iconv_open ("ISO8859-1", "UTF-8");
     if (cd_utf8_to_88591 != (iconv_t)(-1))
       {
-        static const char input[] = "\342\202\254"; /* EURO SIGN */
+        static ICONV_CONST char input[] = "\342\202\254"; /* EURO SIGN */
         char buf[10];
-        const char *inptr = input;
+        ICONV_CONST char *inptr = input;
         size_t inbytesleft = strlen (input);
         char *outptr = buf;
         size_t outbytesleft = sizeof (buf);
         size_t res = iconv (cd_utf8_to_88591,
-                            (char **) &inptr, &inbytesleft,
+                            &inptr, &inbytesleft,
                             &outptr, &outbytesleft);
         if (res == 0)
-          return 1;
+          result |= 1;
+        iconv_close (cd_utf8_to_88591);
       }
   }
   /* Test against Solaris 10 bug: Failures are not distinguishable from
@@ -93,17 +112,37 @@ int main ()
     iconv_t cd_ascii_to_88591 = iconv_open ("ISO8859-1", "646");
     if (cd_ascii_to_88591 != (iconv_t)(-1))
       {
-        static const char input[] = "\263";
+        static ICONV_CONST char input[] = "\263";
         char buf[10];
-        const char *inptr = input;
+        ICONV_CONST char *inptr = input;
         size_t inbytesleft = strlen (input);
         char *outptr = buf;
         size_t outbytesleft = sizeof (buf);
         size_t res = iconv (cd_ascii_to_88591,
-                            (char **) &inptr, &inbytesleft,
+                            &inptr, &inbytesleft,
                             &outptr, &outbytesleft);
         if (res == 0)
-          return 1;
+          result |= 2;
+        iconv_close (cd_ascii_to_88591);
+      }
+  }
+  /* Test against AIX 6.1..7.1 bug: Buffer overrun.  */
+  {
+    iconv_t cd_88591_to_utf8 = iconv_open ("UTF-8", "ISO-8859-1");
+    if (cd_88591_to_utf8 != (iconv_t)(-1))
+      {
+        static ICONV_CONST char input[] = "\304";
+        static char buf[2] = { (char)0xDE, (char)0xAD };
+        ICONV_CONST char *inptr = input;
+        size_t inbytesleft = 1;
+        char *outptr = buf;
+        size_t outbytesleft = 1;
+        size_t res = iconv (cd_88591_to_utf8,
+                            &inptr, &inbytesleft,
+                            &outptr, &outbytesleft);
+        if (res != (size_t)(-1) || outptr - buf > 1 || buf[1] != (char)0xAD)
+          result |= 4;
+        iconv_close (cd_88591_to_utf8);
       }
   }
 #if 0 /* This bug could be worked around by the caller.  */
@@ -112,37 +151,53 @@ int main ()
     iconv_t cd_88591_to_utf8 = iconv_open ("utf8", "iso88591");
     if (cd_88591_to_utf8 != (iconv_t)(-1))
       {
-        static const char input[] = "\304rger mit b\366sen B\374bchen ohne 
Augenma\337";
+        static ICONV_CONST char input[] = "\304rger mit b\366sen B\374bchen 
ohne Augenma\337";
         char buf[50];
-        const char *inptr = input;
+        ICONV_CONST char *inptr = input;
         size_t inbytesleft = strlen (input);
         char *outptr = buf;
         size_t outbytesleft = sizeof (buf);
         size_t res = iconv (cd_88591_to_utf8,
-                            (char **) &inptr, &inbytesleft,
+                            &inptr, &inbytesleft,
                             &outptr, &outbytesleft);
         if ((int)res > 0)
-          return 1;
+          result |= 8;
+        iconv_close (cd_88591_to_utf8);
       }
   }
 #endif
   /* Test against HP-UX 11.11 bug: No converter from EUC-JP to UTF-8 is
      provided.  */
-  if (/* Try standardized names.  */
-      iconv_open ("UTF-8", "EUC-JP") == (iconv_t)(-1)
-      /* Try IRIX, OSF/1 names.  */
-      && iconv_open ("UTF-8", "eucJP") == (iconv_t)(-1)
-      /* Try AIX names.  */
-      && iconv_open ("UTF-8", "IBM-eucJP") == (iconv_t)(-1)
-      /* Try HP-UX names.  */
-      && iconv_open ("utf8", "eucJP") == (iconv_t)(-1))
-    return 1;
-  return 0;
-}], [am_cv_func_iconv_works=yes], [am_cv_func_iconv_works=no],
-        [case "$host_os" in
-           aix* | hpux*) am_cv_func_iconv_works="guessing no" ;;
-           *)            am_cv_func_iconv_works="guessing yes" ;;
-         esac])
+  {
+    /* Try standardized names.  */
+    iconv_t cd1 = iconv_open ("UTF-8", "EUC-JP");
+    /* Try IRIX, OSF/1 names.  */
+    iconv_t cd2 = iconv_open ("UTF-8", "eucJP");
+    /* Try AIX names.  */
+    iconv_t cd3 = iconv_open ("UTF-8", "IBM-eucJP");
+    /* Try HP-UX names.  */
+    iconv_t cd4 = iconv_open ("utf8", "eucJP");
+    if (cd1 == (iconv_t)(-1) && cd2 == (iconv_t)(-1)
+        && cd3 == (iconv_t)(-1) && cd4 == (iconv_t)(-1))
+      result |= 16;
+    if (cd1 != (iconv_t)(-1))
+      iconv_close (cd1);
+    if (cd2 != (iconv_t)(-1))
+      iconv_close (cd2);
+    if (cd3 != (iconv_t)(-1))
+      iconv_close (cd3);
+    if (cd4 != (iconv_t)(-1))
+      iconv_close (cd4);
+  }
+  return result;
+]])],
+          [am_cv_func_iconv_works=yes], ,
+          [case "$host_os" in
+             aix* | hpux*) am_cv_func_iconv_works="guessing no" ;;
+             *)            am_cv_func_iconv_works="guessing yes" ;;
+           esac])
+        test "$am_cv_func_iconv_works" = no || break
+      done
       LIBS="$am_save_LIBS"
     ])
     case "$am_cv_func_iconv_works" in
@@ -183,32 +238,51 @@ m4_define([gl_iconv_AC_DEFUN],
   m4_version_prereq([2.64],
     [[AC_DEFUN_ONCE(
         [$1], [$2])]],
-    [[AC_DEFUN(
-        [$1], [$2])]]))
+    [m4_ifdef([gl_00GNULIB],
+       [[AC_DEFUN_ONCE(
+           [$1], [$2])]],
+       [[AC_DEFUN(
+           [$1], [$2])]])]))
 gl_iconv_AC_DEFUN([AM_ICONV],
 [
   AM_ICONV_LINK
   if test "$am_cv_func_iconv" = yes; then
     AC_MSG_CHECKING([for iconv declaration])
     AC_CACHE_VAL([am_cv_proto_iconv], [
-      AC_TRY_COMPILE([
+      AC_COMPILE_IFELSE(
+        [AC_LANG_PROGRAM(
+           [[
 #include <stdlib.h>
 #include <iconv.h>
 extern
 #ifdef __cplusplus
 "C"
 #endif
-#if defined(__STDC__) || defined(__cplusplus)
+#if defined(__STDC__) || defined(_MSC_VER) || defined(__cplusplus)
 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, 
size_t *outbytesleft);
 #else
 size_t iconv();
 #endif
-], [], [am_cv_proto_iconv_arg1=""], [am_cv_proto_iconv_arg1="const"])
+           ]],
+           [[]])],
+        [am_cv_proto_iconv_arg1=""],
+        [am_cv_proto_iconv_arg1="const"])
       am_cv_proto_iconv="extern size_t iconv (iconv_t cd, 
$am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, 
size_t *outbytesleft);"])
     am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( 
/(/'`
     AC_MSG_RESULT([
          $am_cv_proto_iconv])
-    AC_DEFINE_UNQUOTED([ICONV_CONST], [$am_cv_proto_iconv_arg1],
-      [Define as const if the declaration of iconv() needs const.])
+  else
+    dnl When compiling GNU libiconv on a system that does not have iconv yet,
+    dnl pick the POSIX compliant declaration without 'const'.
+    am_cv_proto_iconv_arg1=""
   fi
+  AC_DEFINE_UNQUOTED([ICONV_CONST], [$am_cv_proto_iconv_arg1],
+    [Define as const if the declaration of iconv() needs const.])
+  dnl Also substitute ICONV_CONST in the gnulib generated <iconv.h>.
+  m4_ifdef([gl_ICONV_H_DEFAULTS],
+    [AC_REQUIRE([gl_ICONV_H_DEFAULTS])
+     if test -n "$am_cv_proto_iconv_arg1"; then
+       ICONV_CONST="const"
+     fi
+    ])
 ])
diff --git a/m4/intlmacosx.m4 b/m4/intlmacosx.m4
new file mode 100644
index 0000000..ebd9937
--- /dev/null
+++ b/m4/intlmacosx.m4
@@ -0,0 +1,65 @@
+# intlmacosx.m4 serial 8 (gettext-0.20.2)
+dnl Copyright (C) 2004-2014, 2016, 2019-2020 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+dnl
+dnl This file can be used in projects which are not available under
+dnl the GNU General Public License or the GNU Lesser General Public
+dnl License but which still want to provide support for the GNU gettext
+dnl functionality.
+dnl Please note that the actual code of the GNU gettext library is covered
+dnl by the GNU Lesser General Public License, and the rest of the GNU
+dnl gettext package is covered by the GNU General Public License.
+dnl They are *not* in the public domain.
+
+dnl Checks for special options needed on Mac OS X.
+dnl Defines INTL_MACOSX_LIBS.
+AC_DEFUN([gt_INTL_MACOSX],
+[
+  dnl Check for API introduced in Mac OS X 10.4.
+  AC_CACHE_CHECK([for CFPreferencesCopyAppValue],
+    [gt_cv_func_CFPreferencesCopyAppValue],
+    [gt_save_LIBS="$LIBS"
+     LIBS="$LIBS -Wl,-framework -Wl,CoreFoundation"
+     AC_LINK_IFELSE(
+       [AC_LANG_PROGRAM(
+          [[#include <CoreFoundation/CFPreferences.h>]],
+          [[CFPreferencesCopyAppValue(NULL, NULL)]])],
+       [gt_cv_func_CFPreferencesCopyAppValue=yes],
+       [gt_cv_func_CFPreferencesCopyAppValue=no])
+     LIBS="$gt_save_LIBS"])
+  if test $gt_cv_func_CFPreferencesCopyAppValue = yes; then
+    AC_DEFINE([HAVE_CFPREFERENCESCOPYAPPVALUE], [1],
+      [Define to 1 if you have the Mac OS X function CFPreferencesCopyAppValue 
in the CoreFoundation framework.])
+  fi
+  dnl Don't check for the API introduced in Mac OS X 10.5, CFLocaleCopyCurrent,
+  dnl because in macOS 10.13.4 it has the following behaviour:
+  dnl When two or more languages are specified in the
+  dnl "System Preferences > Language & Region > Preferred Languages" panel,
+  dnl it returns en_CC where CC is the territory (even when English is not 
among
+  dnl the preferred languages!).  What we want instead is what
+  dnl CFLocaleCopyCurrent returned in earlier macOS releases and what
+  dnl CFPreferencesCopyAppValue still returns, namely ll_CC where ll is the
+  dnl first among the preferred languages and CC is the territory.
+  AC_CACHE_CHECK([for CFLocaleCopyPreferredLanguages], 
[gt_cv_func_CFLocaleCopyPreferredLanguages],
+    [gt_save_LIBS="$LIBS"
+     LIBS="$LIBS -Wl,-framework -Wl,CoreFoundation"
+     AC_LINK_IFELSE(
+       [AC_LANG_PROGRAM(
+          [[#include <CoreFoundation/CFLocale.h>]],
+          [[CFLocaleCopyPreferredLanguages();]])],
+       [gt_cv_func_CFLocaleCopyPreferredLanguages=yes],
+       [gt_cv_func_CFLocaleCopyPreferredLanguages=no])
+     LIBS="$gt_save_LIBS"])
+  if test $gt_cv_func_CFLocaleCopyPreferredLanguages = yes; then
+    AC_DEFINE([HAVE_CFLOCALECOPYPREFERREDLANGUAGES], [1],
+      [Define to 1 if you have the Mac OS X function 
CFLocaleCopyPreferredLanguages in the CoreFoundation framework.])
+  fi
+  INTL_MACOSX_LIBS=
+  if test $gt_cv_func_CFPreferencesCopyAppValue = yes \
+     || test $gt_cv_func_CFLocaleCopyPreferredLanguages = yes; then
+    INTL_MACOSX_LIBS="-Wl,-framework -Wl,CoreFoundation"
+  fi
+  AC_SUBST([INTL_MACOSX_LIBS])
+])
diff --git a/m4/lib-ld.m4 b/m4/lib-ld.m4
index ebb3052..98c348f 100644
--- a/m4/lib-ld.m4
+++ b/m4/lib-ld.m4
@@ -1,110 +1,168 @@
-# lib-ld.m4 serial 4 (gettext-0.18)
-dnl Copyright (C) 1996-2003, 2009-2010 Free Software Foundation, Inc.
+# lib-ld.m4 serial 9
+dnl Copyright (C) 1996-2003, 2009-2020 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
 dnl Subroutines of libtool.m4,
-dnl with replacements s/AC_/AC_LIB/ and s/lt_cv/acl_cv/ to avoid collision
-dnl with libtool.m4.
+dnl with replacements s/_*LT_PATH/AC_LIB_PROG/ and s/lt_/acl_/ to avoid
+dnl collision with libtool.m4.
 
-dnl From libtool-1.4. Sets the variable with_gnu_ld to yes or no.
+dnl From libtool-2.4. Sets the variable with_gnu_ld to yes or no.
 AC_DEFUN([AC_LIB_PROG_LD_GNU],
 [AC_CACHE_CHECK([if the linker ($LD) is GNU ld], [acl_cv_prog_gnu_ld],
-[# I'd rather use --version here, but apparently some GNU ld's only accept -v.
+[# I'd rather use --version here, but apparently some GNU lds only accept -v.
 case `$LD -v 2>&1 </dev/null` in
 *GNU* | *'with BFD'*)
-  acl_cv_prog_gnu_ld=yes ;;
+  acl_cv_prog_gnu_ld=yes
+  ;;
 *)
-  acl_cv_prog_gnu_ld=no ;;
+  acl_cv_prog_gnu_ld=no
+  ;;
 esac])
 with_gnu_ld=$acl_cv_prog_gnu_ld
 ])
 
-dnl From libtool-1.4. Sets the variable LD.
+dnl From libtool-2.4. Sets the variable LD.
 AC_DEFUN([AC_LIB_PROG_LD],
-[AC_ARG_WITH([gnu-ld],
-[  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]],
-test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
-AC_REQUIRE([AC_PROG_CC])dnl
+[AC_REQUIRE([AC_PROG_CC])dnl
 AC_REQUIRE([AC_CANONICAL_HOST])dnl
+
+AC_ARG_WITH([gnu-ld],
+    [AS_HELP_STRING([--with-gnu-ld],
+        [assume the C compiler uses GNU ld [default=no]])],
+    [test "$withval" = no || with_gnu_ld=yes],
+    [with_gnu_ld=no])dnl
+
 # Prepare PATH_SEPARATOR.
 # The user is always right.
 if test "${PATH_SEPARATOR+set}" != set; then
-  echo "#! /bin/sh" >conf$$.sh
-  echo  "exit 0"   >>conf$$.sh
-  chmod +x conf$$.sh
-  if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
-    PATH_SEPARATOR=';'
-  else
-    PATH_SEPARATOR=:
-  fi
-  rm -f conf$$.sh
+  # Determine PATH_SEPARATOR by trying to find /bin/sh in a PATH which
+  # contains only /bin. Note that ksh looks also at the FPATH variable,
+  # so we have to set that as well for the test.
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
+    && { (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
+           || PATH_SEPARATOR=';'
+       }
 fi
-ac_prog=ld
-if test "$GCC" = yes; then
-  # Check if gcc -print-prog-name=ld gives a path.
-  AC_MSG_CHECKING([for ld used by GCC])
-  case $host in
-  *-*-mingw*)
-    # gcc leaves a trailing carriage return which upsets mingw
-    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
-  *)
-    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
-  esac
-  case $ac_prog in
-    # Accept absolute paths.
-    [[\\/]* | [A-Za-z]:[\\/]*)]
-      [re_direlt='/[^/][^/]*/\.\./']
-      # Canonicalize the path of ld
-      ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
-      while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
-        ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
-      done
-      test -z "$LD" && LD="$ac_prog"
-      ;;
-  "")
-    # If it fails, then pretend we aren't using GCC.
-    ac_prog=ld
-    ;;
-  *)
-    # If it is relative, then search for the first ld in PATH.
-    with_gnu_ld=unknown
-    ;;
-  esac
+
+if test -n "$LD"; then
+  AC_MSG_CHECKING([for ld])
+elif test "$GCC" = yes; then
+  AC_MSG_CHECKING([for ld used by $CC])
 elif test "$with_gnu_ld" = yes; then
   AC_MSG_CHECKING([for GNU ld])
 else
   AC_MSG_CHECKING([for non-GNU ld])
 fi
-AC_CACHE_VAL([acl_cv_path_LD],
-[if test -z "$LD"; then
-  IFS="${IFS=  }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
-  for ac_dir in $PATH; do
-    test -z "$ac_dir" && ac_dir=.
-    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
-      acl_cv_path_LD="$ac_dir/$ac_prog"
-      # Check to see if the program is GNU ld.  I'd rather use --version,
-      # but apparently some GNU ld's only accept -v.
-      # Break only if it was the GNU/non-GNU ld that we prefer.
-      case `"$acl_cv_path_LD" -v 2>&1 < /dev/null` in
-      *GNU* | *'with BFD'*)
-        test "$with_gnu_ld" != no && break ;;
-      *)
-        test "$with_gnu_ld" != yes && break ;;
+if test -n "$LD"; then
+  # Let the user override the test with a path.
+  :
+else
+  AC_CACHE_VAL([acl_cv_path_LD],
+  [
+    acl_cv_path_LD= # Final result of this test
+    ac_prog=ld # Program to search in $PATH
+    if test "$GCC" = yes; then
+      # Check if gcc -print-prog-name=ld gives a path.
+      case $host in
+        *-*-mingw*)
+          # gcc leaves a trailing carriage return which upsets mingw
+          acl_output=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+        *)
+          acl_output=`($CC -print-prog-name=ld) 2>&5` ;;
+      esac
+      case $acl_output in
+        # Accept absolute paths.
+        [[\\/]]* | ?:[[\\/]]*)
+          re_direlt='/[[^/]][[^/]]*/\.\./'
+          # Canonicalize the pathname of ld
+          acl_output=`echo "$acl_output" | sed 's%\\\\%/%g'`
+          while echo "$acl_output" | grep "$re_direlt" > /dev/null 2>&1; do
+            acl_output=`echo $acl_output | sed "s%$re_direlt%/%"`
+          done
+          # Got the pathname. No search in PATH is needed.
+          acl_cv_path_LD="$acl_output"
+          ac_prog=
+          ;;
+        "")
+          # If it fails, then pretend we aren't using GCC.
+          ;;
+        *)
+          # If it is relative, then search for the first ld in PATH.
+          with_gnu_ld=unknown
+          ;;
       esac
     fi
-  done
-  IFS="$ac_save_ifs"
-else
-  acl_cv_path_LD="$LD" # Let the user override the test with a path.
-fi])
-LD="$acl_cv_path_LD"
+    if test -n "$ac_prog"; then
+      # Search for $ac_prog in $PATH.
+      acl_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+      for ac_dir in $PATH; do
+        IFS="$acl_save_ifs"
+        test -z "$ac_dir" && ac_dir=.
+        if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; 
then
+          acl_cv_path_LD="$ac_dir/$ac_prog"
+          # Check to see if the program is GNU ld.  I'd rather use --version,
+          # but apparently some variants of GNU ld only accept -v.
+          # Break only if it was the GNU/non-GNU ld that we prefer.
+          case `"$acl_cv_path_LD" -v 2>&1 </dev/null` in
+            *GNU* | *'with BFD'*)
+              test "$with_gnu_ld" != no && break
+              ;;
+            *)
+              test "$with_gnu_ld" != yes && break
+              ;;
+          esac
+        fi
+      done
+      IFS="$acl_save_ifs"
+    fi
+    case $host in
+      *-*-aix*)
+        AC_COMPILE_IFELSE(
+          [AC_LANG_SOURCE(
+             [[#if defined __powerpc64__ || defined _ARCH_PPC64
+                int ok;
+               #else
+                error fail
+               #endif
+             ]])],
+          [# The compiler produces 64-bit code. Add option '-b64' so that the
+           # linker groks 64-bit object files.
+           case "$acl_cv_path_LD " in
+             *" -b64 "*) ;;
+             *) acl_cv_path_LD="$acl_cv_path_LD -b64" ;;
+           esac
+          ], [])
+        ;;
+      sparc64-*-netbsd*)
+        AC_COMPILE_IFELSE(
+          [AC_LANG_SOURCE(
+             [[#if defined __sparcv9 || defined __arch64__
+                int ok;
+               #else
+                error fail
+               #endif
+             ]])],
+          [],
+          [# The compiler produces 32-bit code. Add option '-m elf32_sparc'
+           # so that the linker groks 32-bit object files.
+           case "$acl_cv_path_LD " in
+             *" -m elf32_sparc "*) ;;
+             *) acl_cv_path_LD="$acl_cv_path_LD -m elf32_sparc" ;;
+           esac
+          ])
+        ;;
+    esac
+  ])
+  LD="$acl_cv_path_LD"
+fi
 if test -n "$LD"; then
   AC_MSG_RESULT([$LD])
 else
   AC_MSG_RESULT([no])
+  AC_MSG_ERROR([no acceptable ld found in \$PATH])
 fi
-test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
 AC_LIB_PROG_LD_GNU
 ])
diff --git a/m4/lib-link.m4 b/m4/lib-link.m4
index c73bd8e..eecf70e 100644
--- a/m4/lib-link.m4
+++ b/m4/lib-link.m4
@@ -1,12 +1,12 @@
-# lib-link.m4 serial 21 (gettext-0.18)
-dnl Copyright (C) 2001-2010 Free Software Foundation, Inc.
+# lib-link.m4 serial 31
+dnl Copyright (C) 2001-2020 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
 dnl From Bruno Haible.
 
-AC_PREREQ([2.54])
+AC_PREREQ([2.61])
 
 dnl AC_LIB_LINKFLAGS(name [, dependencies]) searches for libname and
 dnl the libraries corresponding to explicit and implicit dependencies.
@@ -18,9 +18,9 @@ AC_DEFUN([AC_LIB_LINKFLAGS],
 [
   AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
   AC_REQUIRE([AC_LIB_RPATH])
-  pushdef([Name],[translit([$1],[./-], [___])])
-  pushdef([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
-                                [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
+  pushdef([Name],[m4_translit([$1],[./+-], [____])])
+  pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-],
+                                   [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])
   AC_CACHE_CHECK([how to link with lib[]$1], [ac_cv_lib[]Name[]_libs], [
     AC_LIB_LINKFLAGS_BODY([$1], [$2])
     ac_cv_lib[]Name[]_libs="$LIB[]NAME"
@@ -58,9 +58,9 @@ AC_DEFUN([AC_LIB_HAVE_LINKFLAGS],
 [
   AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
   AC_REQUIRE([AC_LIB_RPATH])
-  pushdef([Name],[translit([$1],[./-], [___])])
-  pushdef([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
-                                [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
+  pushdef([Name],[m4_translit([$1],[./+-], [____])])
+  pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-],
+                                   [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])
 
   dnl Search for lib[]Name and define LIB[]NAME, LTLIB[]NAME and INC[]NAME
   dnl accordingly.
@@ -85,7 +85,8 @@ AC_DEFUN([AC_LIB_HAVE_LINKFLAGS],
       *" -l"*) LIBS="$LIBS $LIB[]NAME" ;;
       *)       LIBS="$LIB[]NAME $LIBS" ;;
     esac
-    AC_TRY_LINK([$3], [$4],
+    AC_LINK_IFELSE(
+      [AC_LANG_PROGRAM([[$3]], [[$4]])],
       [ac_cv_lib[]Name=yes],
       [ac_cv_lib[]Name='m4_if([$5], [], [no], [[$5]])'])
     LIBS="$ac_save_LIBS"
@@ -115,14 +116,16 @@ AC_DEFUN([AC_LIB_HAVE_LINKFLAGS],
 dnl Determine the platform dependent parameters needed to use rpath:
 dnl   acl_libext,
 dnl   acl_shlibext,
+dnl   acl_libname_spec,
+dnl   acl_library_names_spec,
 dnl   acl_hardcode_libdir_flag_spec,
 dnl   acl_hardcode_libdir_separator,
 dnl   acl_hardcode_direct,
 dnl   acl_hardcode_minus_L.
 AC_DEFUN([AC_LIB_RPATH],
 [
-  dnl Tell automake >= 1.10 to complain if config.rpath is missing.
-  m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([config.rpath])])
+  dnl Complain if config.rpath is missing.
+  AC_REQUIRE_AUX_FILE([config.rpath])
   AC_REQUIRE([AC_PROG_CC])                dnl we use $CC, $GCC, $LDFLAGS
   AC_REQUIRE([AC_LIB_PROG_LD])            dnl we use $LD, $with_gnu_ld
   AC_REQUIRE([AC_CANONICAL_HOST])         dnl we use $host
@@ -157,15 +160,15 @@ dnl package. This declaration must occur before an 
AC_LIB_LINKFLAGS or similar
 dnl macro call that searches for libname.
 AC_DEFUN([AC_LIB_FROMPACKAGE],
 [
-  pushdef([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
-                                [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
+  pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-],
+                                   [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])
   define([acl_frompackage_]NAME, [$2])
   popdef([NAME])
   pushdef([PACK],[$2])
-  pushdef([PACKUP],[translit(PACK,[abcdefghijklmnopqrstuvwxyz./-],
-                                  [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
+  pushdef([PACKUP],[m4_translit(PACK,[abcdefghijklmnopqrstuvwxyz./+-],
+                                     [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])
   define([acl_libsinpackage_]PACKUP,
-    m4_ifdef([acl_libsinpackage_]PACKUP, [acl_libsinpackage_]PACKUP[[, 
]],)[lib$1])
+    m4_ifdef([acl_libsinpackage_]PACKUP, 
[m4_defn([acl_libsinpackage_]PACKUP)[, ]],)[lib$1])
   popdef([PACKUP])
   popdef([PACK])
 ])
@@ -178,23 +181,23 @@ dnl in ${LIB${NAME}_PREFIX}/$acl_libdirstem.
 AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
 [
   AC_REQUIRE([AC_LIB_PREPARE_MULTILIB])
-  pushdef([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
-                                [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
+  pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-],
+                                   [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])
   pushdef([PACK],[m4_ifdef([acl_frompackage_]NAME, [acl_frompackage_]NAME, 
lib[$1])])
-  pushdef([PACKUP],[translit(PACK,[abcdefghijklmnopqrstuvwxyz./-],
-                                  [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
+  pushdef([PACKUP],[m4_translit(PACK,[abcdefghijklmnopqrstuvwxyz./+-],
+                                     [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])
   pushdef([PACKLIBS],[m4_ifdef([acl_frompackage_]NAME, 
[acl_libsinpackage_]PACKUP, lib[$1])])
-  dnl Autoconf >= 2.61 supports dots in --with options.
-  
pushdef([P_A_C_K],[m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]),[2.61]),[-1],[translit(PACK,[.],[_])],PACK)])
   dnl By default, look in $includedir and $libdir.
   use_additional=yes
   AC_LIB_WITH_FINAL_PREFIX([
     eval additional_includedir=\"$includedir\"
     eval additional_libdir=\"$libdir\"
+    eval additional_libdir2=\"$exec_prefix/$acl_libdirstem2\"
+    eval additional_libdir3=\"$exec_prefix/$acl_libdirstem3\"
   ])
-  AC_ARG_WITH(P_A_C_K[-prefix],
-[[  --with-]]P_A_C_K[[-prefix[=DIR]  search for ]PACKLIBS[ in DIR/include and 
DIR/lib
-  --without-]]P_A_C_K[[-prefix     don't search for ]PACKLIBS[ in includedir 
and libdir]],
+  AC_ARG_WITH(PACK[-prefix],
+[[  --with-]]PACK[[-prefix[=DIR]  search for ]PACKLIBS[ in DIR/include and 
DIR/lib
+  --without-]]PACK[[-prefix     don't search for ]PACKLIBS[ in includedir and 
libdir]],
 [
     if test "X$withval" = "Xno"; then
       use_additional=no
@@ -203,17 +206,23 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
         AC_LIB_WITH_FINAL_PREFIX([
           eval additional_includedir=\"$includedir\"
           eval additional_libdir=\"$libdir\"
+          eval additional_libdir2=\"$exec_prefix/$acl_libdirstem2\"
+          eval additional_libdir3=\"$exec_prefix/$acl_libdirstem3\"
         ])
       else
         additional_includedir="$withval/include"
         additional_libdir="$withval/$acl_libdirstem"
-        if test "$acl_libdirstem2" != "$acl_libdirstem" \
-           && ! test -d "$withval/$acl_libdirstem"; then
-          additional_libdir="$withval/$acl_libdirstem2"
-        fi
+        additional_libdir2="$withval/$acl_libdirstem2"
+        additional_libdir3="$withval/$acl_libdirstem3"
       fi
     fi
 ])
+  if test "X$additional_libdir2" = "X$additional_libdir"; then
+    additional_libdir2=
+  fi
+  if test "X$additional_libdir3" = "X$additional_libdir"; then
+    additional_libdir3=
+  fi
   dnl Search the library and its dependencies in $additional_libdir and
   dnl $LDFLAGS. Using breadth-first-seach.
   LIB[]NAME=
@@ -242,7 +251,7 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
         names_already_handled="$names_already_handled $name"
         dnl See if it was already located by an earlier AC_LIB_LINKFLAGS
         dnl or AC_LIB_HAVE_LINKFLAGS call.
-        uppername=`echo "$name" | sed -e 
'y|abcdefghijklmnopqrstuvwxyz./-|ABCDEFGHIJKLMNOPQRSTUVWXYZ___|'`
+        uppername=`echo "$name" | sed -e 
'y|abcdefghijklmnopqrstuvwxyz./+-|ABCDEFGHIJKLMNOPQRSTUVWXYZ____|'`
         eval value=\"\$HAVE_LIB$uppername\"
         if test -n "$value"; then
           if test "$value" = yes; then
@@ -269,48 +278,54 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
             shrext=
           fi
           if test $use_additional = yes; then
-            dir="$additional_libdir"
-            dnl The same code as in the loop below:
-            dnl First look for a shared library.
-            if test -n "$acl_shlibext"; then
-              if test -f "$dir/$libname$shrext"; then
-                found_dir="$dir"
-                found_so="$dir/$libname$shrext"
-              else
-                if test "$acl_library_names_spec" = 
'$libname$shrext$versuffix'; then
-                  ver=`(cd "$dir" && \
-                        for f in "$libname$shrext".*; do echo "$f"; done \
-                        | sed -e "s,^$libname$shrext\\\\.,," \
-                        | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \
-                        | sed 1q ) 2>/dev/null`
-                  if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; 
then
-                    found_dir="$dir"
-                    found_so="$dir/$libname$shrext.$ver"
+            for additional_libdir_variable in additional_libdir 
additional_libdir2 additional_libdir3; do
+              if test "X$found_dir" = "X"; then
+                eval dir=\$$additional_libdir_variable
+                if test -n "$dir"; then
+                  dnl The same code as in the loop below:
+                  dnl First look for a shared library.
+                  if test -n "$acl_shlibext"; then
+                    if test -f "$dir/$libname$shrext" && 
acl_is_expected_elfclass < "$dir/$libname$shrext"; then
+                      found_dir="$dir"
+                      found_so="$dir/$libname$shrext"
+                    else
+                      if test "$acl_library_names_spec" = 
'$libname$shrext$versuffix'; then
+                        ver=`(cd "$dir" && \
+                              for f in "$libname$shrext".*; do echo "$f"; done 
\
+                              | sed -e "s,^$libname$shrext\\\\.,," \
+                              | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 
-k5,5 \
+                              | sed 1q ) 2>/dev/null`
+                        if test -n "$ver" && test -f 
"$dir/$libname$shrext.$ver" && acl_is_expected_elfclass < 
"$dir/$libname$shrext.$ver"; then
+                          found_dir="$dir"
+                          found_so="$dir/$libname$shrext.$ver"
+                        fi
+                      else
+                        eval library_names=\"$acl_library_names_spec\"
+                        for f in $library_names; do
+                          if test -f "$dir/$f" && acl_is_expected_elfclass < 
"$dir/$f"; then
+                            found_dir="$dir"
+                            found_so="$dir/$f"
+                            break
+                          fi
+                        done
+                      fi
+                    fi
                   fi
-                else
-                  eval library_names=\"$acl_library_names_spec\"
-                  for f in $library_names; do
-                    if test -f "$dir/$f"; then
+                  dnl Then look for a static library.
+                  if test "X$found_dir" = "X"; then
+                    if test -f "$dir/$libname.$acl_libext" && ${AR-ar} -p 
"$dir/$libname.$acl_libext" | acl_is_expected_elfclass; then
                       found_dir="$dir"
-                      found_so="$dir/$f"
-                      break
+                      found_a="$dir/$libname.$acl_libext"
                     fi
-                  done
+                  fi
+                  if test "X$found_dir" != "X"; then
+                    if test -f "$dir/$libname.la"; then
+                      found_la="$dir/$libname.la"
+                    fi
+                  fi
                 fi
               fi
-            fi
-            dnl Then look for a static library.
-            if test "X$found_dir" = "X"; then
-              if test -f "$dir/$libname.$acl_libext"; then
-                found_dir="$dir"
-                found_a="$dir/$libname.$acl_libext"
-              fi
-            fi
-            if test "X$found_dir" != "X"; then
-              if test -f "$dir/$libname.la"; then
-                found_la="$dir/$libname.la"
-              fi
-            fi
+            done
           fi
           if test "X$found_dir" = "X"; then
             for x in $LDFLAGS $LTLIB[]NAME; do
@@ -320,7 +335,7 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
                   dir=`echo "X$x" | sed -e 's/^X-L//'`
                   dnl First look for a shared library.
                   if test -n "$acl_shlibext"; then
-                    if test -f "$dir/$libname$shrext"; then
+                    if test -f "$dir/$libname$shrext" && 
acl_is_expected_elfclass < "$dir/$libname$shrext"; then
                       found_dir="$dir"
                       found_so="$dir/$libname$shrext"
                     else
@@ -330,14 +345,14 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
                               | sed -e "s,^$libname$shrext\\\\.,," \
                               | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 
-k5,5 \
                               | sed 1q ) 2>/dev/null`
-                        if test -n "$ver" && test -f 
"$dir/$libname$shrext.$ver"; then
+                        if test -n "$ver" && test -f 
"$dir/$libname$shrext.$ver" && acl_is_expected_elfclass < 
"$dir/$libname$shrext.$ver"; then
                           found_dir="$dir"
                           found_so="$dir/$libname$shrext.$ver"
                         fi
                       else
                         eval library_names=\"$acl_library_names_spec\"
                         for f in $library_names; do
-                          if test -f "$dir/$f"; then
+                          if test -f "$dir/$f" && acl_is_expected_elfclass < 
"$dir/$f"; then
                             found_dir="$dir"
                             found_so="$dir/$f"
                             break
@@ -348,7 +363,7 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
                   fi
                   dnl Then look for a static library.
                   if test "X$found_dir" = "X"; then
-                    if test -f "$dir/$libname.$acl_libext"; then
+                    if test -f "$dir/$libname.$acl_libext" && ${AR-ar} -p 
"$dir/$libname.$acl_libext" | acl_is_expected_elfclass; then
                       found_dir="$dir"
                       found_a="$dir/$libname.$acl_libext"
                     fi
@@ -374,7 +389,8 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
               dnl standard /usr/lib.
               if test "$enable_rpath" = no \
                  || test "X$found_dir" = "X/usr/$acl_libdirstem" \
-                 || test "X$found_dir" = "X/usr/$acl_libdirstem2"; then
+                 || test "X$found_dir" = "X/usr/$acl_libdirstem2" \
+                 || test "X$found_dir" = "X/usr/$acl_libdirstem3"; then
                 dnl No hardcoding is needed.
                 LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
               else
@@ -474,6 +490,13 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
                 fi
                 additional_includedir="$basedir/include"
                 ;;
+              */$acl_libdirstem3 | */$acl_libdirstem3/)
+                basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e 
"s,/$acl_libdirstem3/"'*$,,'`
+                if test "$name" = '$1'; then
+                  LIB[]NAME[]_PREFIX="$basedir"
+                fi
+                additional_includedir="$basedir/include"
+                ;;
             esac
             if test "X$additional_includedir" != "X"; then
               dnl Potentially add $additional_includedir to $INCNAME.
@@ -524,19 +547,21 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
               for dep in $dependency_libs; do
                 case "$dep" in
                   -L*)
-                    additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'`
-                    dnl Potentially add $additional_libdir to $LIBNAME and 
$LTLIBNAME.
+                    dependency_libdir=`echo "X$dep" | sed -e 's/^X-L//'`
+                    dnl Potentially add $dependency_libdir to $LIBNAME and 
$LTLIBNAME.
                     dnl But don't add it
                     dnl   1. if it's the standard /usr/lib,
                     dnl   2. if it's /usr/local/lib and we are using GCC on 
Linux,
                     dnl   3. if it's already present in $LDFLAGS or the already
                     dnl      constructed $LIBNAME,
                     dnl   4. if it doesn't exist as a directory.
-                    if test "X$additional_libdir" != "X/usr/$acl_libdirstem" \
-                       && test "X$additional_libdir" != 
"X/usr/$acl_libdirstem2"; then
+                    if test "X$dependency_libdir" != "X/usr/$acl_libdirstem" \
+                       && test "X$dependency_libdir" != 
"X/usr/$acl_libdirstem2" \
+                       && test "X$dependency_libdir" != 
"X/usr/$acl_libdirstem3"; then
                       haveit=
-                      if test "X$additional_libdir" = 
"X/usr/local/$acl_libdirstem" \
-                         || test "X$additional_libdir" = 
"X/usr/local/$acl_libdirstem2"; then
+                      if test "X$dependency_libdir" = 
"X/usr/local/$acl_libdirstem" \
+                         || test "X$dependency_libdir" = 
"X/usr/local/$acl_libdirstem2" \
+                         || test "X$dependency_libdir" = 
"X/usr/local/$acl_libdirstem3"; then
                         if test -n "$GCC"; then
                           case $host_os in
                             linux* | gnu* | k*bsd*-gnu) haveit=yes;;
@@ -547,29 +572,29 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
                         haveit=
                         for x in $LDFLAGS $LIB[]NAME; do
                           AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
-                          if test "X$x" = "X-L$additional_libdir"; then
+                          if test "X$x" = "X-L$dependency_libdir"; then
                             haveit=yes
                             break
                           fi
                         done
                         if test -z "$haveit"; then
-                          if test -d "$additional_libdir"; then
-                            dnl Really add $additional_libdir to $LIBNAME.
-                            LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ 
}-L$additional_libdir"
+                          if test -d "$dependency_libdir"; then
+                            dnl Really add $dependency_libdir to $LIBNAME.
+                            LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ 
}-L$dependency_libdir"
                           fi
                         fi
                         haveit=
                         for x in $LDFLAGS $LTLIB[]NAME; do
                           AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
-                          if test "X$x" = "X-L$additional_libdir"; then
+                          if test "X$x" = "X-L$dependency_libdir"; then
                             haveit=yes
                             break
                           fi
                         done
                         if test -z "$haveit"; then
-                          if test -d "$additional_libdir"; then
-                            dnl Really add $additional_libdir to $LTLIBNAME.
-                            LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ 
}-L$additional_libdir"
+                          if test -d "$dependency_libdir"; then
+                            dnl Really add $dependency_libdir to $LTLIBNAME.
+                            LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ 
}-L$dependency_libdir"
                           fi
                         fi
                       fi
@@ -667,7 +692,6 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
       LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-R$found_dir"
     done
   fi
-  popdef([P_A_C_K])
   popdef([PACKLIBS])
   popdef([PACKUP])
   popdef([PACK])
@@ -718,7 +742,8 @@ AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS],
           dir="$next"
           dnl No need to hardcode the standard /usr/lib.
           if test "X$dir" != "X/usr/$acl_libdirstem" \
-             && test "X$dir" != "X/usr/$acl_libdirstem2"; then
+             && test "X$dir" != "X/usr/$acl_libdirstem2" \
+             && test "X$dir" != "X/usr/$acl_libdirstem3"; then
             rpathdirs="$rpathdirs $dir"
           fi
           next=
@@ -728,7 +753,8 @@ AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS],
             -L*) dir=`echo "X$opt" | sed -e 's,^X-L,,'`
                  dnl No need to hardcode the standard /usr/lib.
                  if test "X$dir" != "X/usr/$acl_libdirstem" \
-                    && test "X$dir" != "X/usr/$acl_libdirstem2"; then
+                    && test "X$dir" != "X/usr/$acl_libdirstem2" \
+                    && test "X$dir" != "X/usr/$acl_libdirstem3"; then
                    rpathdirs="$rpathdirs $dir"
                  fi
                  next= ;;
diff --git a/m4/lib-prefix.m4 b/m4/lib-prefix.m4
index 1601cea..c8a0b46 100644
--- a/m4/lib-prefix.m4
+++ b/m4/lib-prefix.m4
@@ -1,18 +1,11 @@
-# lib-prefix.m4 serial 7 (gettext-0.18)
-dnl Copyright (C) 2001-2005, 2008-2010 Free Software Foundation, Inc.
+# lib-prefix.m4 serial 17
+dnl Copyright (C) 2001-2005, 2008-2020 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
 dnl From Bruno Haible.
 
-dnl AC_LIB_ARG_WITH is synonymous to AC_ARG_WITH in autoconf-2.13, and
-dnl similar to AC_ARG_WITH in autoconf 2.52...2.57 except that is doesn't
-dnl require excessive bracketing.
-ifdef([AC_HELP_STRING],
-[AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[[$2]],[$3],[$4])])],
-[AC_DEFUN([AC_][LIB_ARG_WITH], [AC_ARG_WITH([$1],[$2],[$3],[$4])])])
-
 dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed
 dnl to access previously installed libraries. The basic assumption is that
 dnl a user will want packages to use other packages he previously installed
@@ -32,9 +25,9 @@ AC_DEFUN([AC_LIB_PREFIX],
     eval additional_includedir=\"$includedir\"
     eval additional_libdir=\"$libdir\"
   ])
-  AC_LIB_ARG_WITH([lib-prefix],
-[  --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib
-  --without-lib-prefix    don't search for libraries in includedir and libdir],
+  AC_ARG_WITH([lib-prefix],
+[[  --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib
+  --without-lib-prefix    don't search for libraries in includedir and 
libdir]],
 [
     if test "X$withval" = "Xno"; then
       use_additional=no
@@ -154,71 +147,174 @@ AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX],
 ])
 
 dnl AC_LIB_PREPARE_MULTILIB creates
-dnl - a variable acl_libdirstem, containing the basename of the libdir, either
-dnl   "lib" or "lib64" or "lib/64",
-dnl - a variable acl_libdirstem2, as a secondary possible value for
-dnl   acl_libdirstem, either the same as acl_libdirstem or "lib/sparcv9" or
-dnl   "lib/amd64".
+dnl - a function acl_is_expected_elfclass, that tests whether standard input
+dn;   has a 32-bit or 64-bit ELF header, depending on the host CPU ABI,
+dnl - 3 variables acl_libdirstem, acl_libdirstem2, acl_libdirstem3, containing
+dnl   the basename of the libdir to try in turn, either "lib" or "lib64" or
+dnl   "lib/64" or "lib32" or "lib/sparcv9" or "lib/amd64" or similar.
 AC_DEFUN([AC_LIB_PREPARE_MULTILIB],
 [
-  dnl There is no formal standard regarding lib and lib64.
-  dnl On glibc systems, the current practice is that on a system supporting
+  dnl There is no formal standard regarding lib, lib32, and lib64.
+  dnl On most glibc systems, the current practice is that on a system 
supporting
   dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under
-  dnl $prefix/lib64 and 32-bit libraries go under $prefix/lib. We determine
-  dnl the compiler's default mode by looking at the compiler's library search
-  dnl path. If at least one of its elements ends in /lib64 or points to a
-  dnl directory whose absolute pathname ends in /lib64, we assume a 64-bit ABI.
-  dnl Otherwise we use the default, namely "lib".
+  dnl $prefix/lib64 and 32-bit libraries go under $prefix/lib. However, on
+  dnl Arch Linux based distributions, it's the opposite: 32-bit libraries go
+  dnl under $prefix/lib32 and 64-bit libraries go under $prefix/lib.
+  dnl We determine the compiler's default mode by looking at the compiler's
+  dnl library search path. If at least one of its elements ends in /lib64 or
+  dnl points to a directory whose absolute pathname ends in /lib64, we use that
+  dnl for 64-bit ABIs. Similarly for 32-bit ABIs. Otherwise we use the default,
+  dnl namely "lib".
   dnl On Solaris systems, the current practice is that on a system supporting
   dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under
   dnl $prefix/lib/64 (which is a symlink to either $prefix/lib/sparcv9 or
   dnl $prefix/lib/amd64) and 32-bit libraries go under $prefix/lib.
   AC_REQUIRE([AC_CANONICAL_HOST])
-  acl_libdirstem=lib
-  acl_libdirstem2=
-  case "$host_os" in
-    solaris*)
-      dnl See Solaris 10 Software Developer Collection > Solaris 64-bit 
Developer's Guide > The Development Environment
-      dnl <http://docs.sun.com/app/docs/doc/816-5138/dev-env?l=en&a=view>.
-      dnl "Portable Makefiles should refer to any library directories using 
the 64 symbolic link."
-      dnl But we want to recognize the sparcv9 or amd64 subdirectory also if 
the
-      dnl symlink is missing, so we set acl_libdirstem2 too.
-      AC_CACHE_CHECK([for 64-bit host], [gl_cv_solaris_64bit],
-        [AC_EGREP_CPP([sixtyfour bits], [
-#ifdef _LP64
-sixtyfour bits
-#endif
-           ], [gl_cv_solaris_64bit=yes], [gl_cv_solaris_64bit=no])
-        ])
-      if test $gl_cv_solaris_64bit = yes; then
-        acl_libdirstem=lib/64
-        case "$host_cpu" in
-          sparc*)        acl_libdirstem2=lib/sparcv9 ;;
-          i*86 | x86_64) acl_libdirstem2=lib/amd64 ;;
-        esac
-      fi
-      ;;
-    *)
-      searchpath=`(LC_ALL=C $CC -print-search-dirs) 2>/dev/null | sed -n -e 
's,^libraries: ,,p' | sed -e 's,^=,,'`
-      if test -n "$searchpath"; then
-        acl_save_IFS="${IFS=   }"; IFS=":"
-        for searchdir in $searchpath; do
-          if test -d "$searchdir"; then
-            case "$searchdir" in
-              */lib64/ | */lib64 ) acl_libdirstem=lib64 ;;
-              */../ | */.. )
-                # Better ignore directories of this form. They are misleading.
-                ;;
-              *) searchdir=`cd "$searchdir" && pwd`
-                 case "$searchdir" in
-                   */lib64 ) acl_libdirstem=lib64 ;;
-                 esac ;;
-            esac
-          fi
-        done
-        IFS="$acl_save_IFS"
-      fi
-      ;;
-  esac
-  test -n "$acl_libdirstem2" || acl_libdirstem2="$acl_libdirstem"
+  AC_REQUIRE([gl_HOST_CPU_C_ABI_32BIT])
+
+  AC_CACHE_CHECK([for ELF binary format], [gl_cv_elf],
+    [AC_EGREP_CPP([Extensible Linking Format],
+       [#ifdef __ELF__
+        Extensible Linking Format
+        #endif
+       ],
+       [gl_cv_elf=yes],
+       [gl_cv_elf=no])
+     ])
+  if test $gl_cv_elf; then
+    # Extract the ELF class of a file (5th byte) in decimal.
+    # Cf. 
https://en.wikipedia.org/wiki/Executable_and_Linkable_Format#File_header
+    if od -A x < /dev/null >/dev/null 2>/dev/null; then
+      # Use POSIX od.
+      func_elfclass ()
+      {
+        od -A n -t d1 -j 4 -N 1
+      }
+    else
+      # Use BSD hexdump.
+      func_elfclass ()
+      {
+        dd bs=1 count=1 skip=4 2>/dev/null | hexdump -e '1/1 "%3d "'
+        echo
+      }
+    fi
+changequote(,)dnl
+    case $HOST_CPU_C_ABI_32BIT in
+      yes)
+        # 32-bit ABI.
+        acl_is_expected_elfclass ()
+        {
+          test "`func_elfclass | sed -e 's/[   ]//g'`" = 1
+        }
+        ;;
+      no)
+        # 64-bit ABI.
+        acl_is_expected_elfclass ()
+        {
+          test "`func_elfclass | sed -e 's/[   ]//g'`" = 2
+        }
+        ;;
+      *)
+        # Unknown.
+        acl_is_expected_elfclass ()
+        {
+          :
+        }
+        ;;
+    esac
+changequote([,])dnl
+  else
+    acl_is_expected_elfclass ()
+    {
+      :
+    }
+  fi
+
+  dnl Allow the user to override the result by setting acl_cv_libdirstems.
+  AC_CACHE_CHECK([for the common suffixes of directories in the library search 
path],
+    [acl_cv_libdirstems],
+    [dnl Try 'lib' first, because that's the default for libdir in GNU, see
+     dnl 
<https://www.gnu.org/prep/standards/html_node/Directory-Variables.html>.
+     acl_libdirstem=lib
+     acl_libdirstem2=
+     acl_libdirstem3=
+     case "$host_os" in
+       solaris*)
+         dnl See Solaris 10 Software Developer Collection > Solaris 64-bit 
Developer's Guide > The Development Environment
+         dnl 
<https://docs.oracle.com/cd/E19253-01/816-5138/dev-env/index.html>.
+         dnl "Portable Makefiles should refer to any library directories using 
the 64 symbolic link."
+         dnl But we want to recognize the sparcv9 or amd64 subdirectory also 
if the
+         dnl symlink is missing, so we set acl_libdirstem2 too.
+         if test $HOST_CPU_C_ABI_32BIT = no; then
+           acl_libdirstem2=lib/64
+           case "$host_cpu" in
+             sparc*)        acl_libdirstem3=lib/sparcv9 ;;
+             i*86 | x86_64) acl_libdirstem3=lib/amd64 ;;
+           esac
+         fi
+         ;;
+       *)
+         dnl If $CC generates code for a 32-bit ABI, the libraries are
+         dnl surely under $prefix/lib or $prefix/lib32, not $prefix/lib64.
+         dnl Similarly, if $CC generates code for a 64-bit ABI, the libraries
+         dnl are surely under $prefix/lib or $prefix/lib64, not $prefix/lib32.
+         dnl Find the compiler's search path. However, non-system compilers
+         dnl sometimes have odd library search paths. But we can't simply 
invoke
+         dnl '/usr/bin/gcc -print-search-dirs' because that would not take into
+         dnl account the -m32/-m31 or -m64 options from the $CC or $CFLAGS.
+         searchpath=`(LC_ALL=C $CC $CPPFLAGS $CFLAGS -print-search-dirs) 
2>/dev/null \
+                     | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'`
+         if test $HOST_CPU_C_ABI_32BIT != no; then
+           # 32-bit or unknown ABI.
+           if test -d /usr/lib32; then
+             acl_libdirstem2=lib32
+           fi
+         fi
+         if test $HOST_CPU_C_ABI_32BIT != yes; then
+           # 64-bit or unknown ABI.
+           if test -d /usr/lib64; then
+             acl_libdirstem3=lib64
+           fi
+         fi
+         if test -n "$searchpath"; then
+           acl_save_IFS="${IFS=        }"; IFS=":"
+           for searchdir in $searchpath; do
+             if test -d "$searchdir"; then
+               case "$searchdir" in
+                 */lib32/ | */lib32 ) acl_libdirstem2=lib32 ;;
+                 */lib64/ | */lib64 ) acl_libdirstem3=lib64 ;;
+                 */../ | */.. )
+                   # Better ignore directories of this form. They are 
misleading.
+                   ;;
+                 *) searchdir=`cd "$searchdir" && pwd`
+                    case "$searchdir" in
+                      */lib32 ) acl_libdirstem2=lib32 ;;
+                      */lib64 ) acl_libdirstem3=lib64 ;;
+                    esac ;;
+               esac
+             fi
+           done
+           IFS="$acl_save_IFS"
+           if test $HOST_CPU_C_ABI_32BIT = yes; then
+             # 32-bit ABI.
+             acl_libdirstem3=
+           fi
+           if test $HOST_CPU_C_ABI_32BIT = no; then
+             # 64-bit ABI.
+             acl_libdirstem2=
+           fi
+         fi
+         ;;
+     esac
+     test -n "$acl_libdirstem2" || acl_libdirstem2="$acl_libdirstem"
+     test -n "$acl_libdirstem3" || acl_libdirstem3="$acl_libdirstem"
+     acl_cv_libdirstems="$acl_libdirstem,$acl_libdirstem2,$acl_libdirstem3"
+    ])
+  dnl Decompose acl_cv_libdirstems into acl_libdirstem, acl_libdirstem2, and
+  dnl acl_libdirstem3.
+changequote(,)dnl
+  acl_libdirstem=`echo "$acl_cv_libdirstems" | sed -e 's/,.*//'`
+  acl_libdirstem2=`echo "$acl_cv_libdirstems" | sed -e 's/^[^,]*,//' -e 
's/,.*//'`
+  acl_libdirstem3=`echo "$acl_cv_libdirstems" | sed -e 's/^[^,]*,[^,]*,//' -e 
's/,.*//'`
+changequote([,])dnl
 ])
diff --git a/m4/nls.m4 b/m4/nls.m4
index 003704c..5a506fc 100644
--- a/m4/nls.m4
+++ b/m4/nls.m4
@@ -1,17 +1,17 @@
-# nls.m4 serial 5 (gettext-0.18)
-dnl Copyright (C) 1995-2003, 2005-2006, 2008-2010 Free Software Foundation,
-dnl Inc.
+# nls.m4 serial 6 (gettext-0.20.2)
+dnl Copyright (C) 1995-2003, 2005-2006, 2008-2014, 2016, 2019-2020 Free
+dnl Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl
-dnl This file can can be used in projects which are not available under
-dnl the GNU General Public License or the GNU Library General Public
+dnl This file can be used in projects which are not available under
+dnl the GNU General Public License or the GNU Lesser General Public
 dnl License but which still want to provide support for the GNU gettext
 dnl functionality.
 dnl Please note that the actual code of the GNU gettext library is covered
-dnl by the GNU Library General Public License, and the rest of the GNU
-dnl gettext package package is covered by the GNU General Public License.
+dnl by the GNU Lesser General Public License, and the rest of the GNU
+dnl gettext package is covered by the GNU General Public License.
 dnl They are *not* in the public domain.
 
 dnl Authors:
diff --git a/m4/po.m4 b/m4/po.m4
index 47f36a4..3778fd7 100644
--- a/m4/po.m4
+++ b/m4/po.m4
@@ -1,35 +1,36 @@
-# po.m4 serial 17 (gettext-0.18)
-dnl Copyright (C) 1995-2010 Free Software Foundation, Inc.
+# po.m4 serial 31 (gettext-0.20.2)
+dnl Copyright (C) 1995-2014, 2016, 2018-2020 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl
-dnl This file can can be used in projects which are not available under
-dnl the GNU General Public License or the GNU Library General Public
+dnl This file can be used in projects which are not available under
+dnl the GNU General Public License or the GNU Lesser General Public
 dnl License but which still want to provide support for the GNU gettext
 dnl functionality.
 dnl Please note that the actual code of the GNU gettext library is covered
-dnl by the GNU Library General Public License, and the rest of the GNU
-dnl gettext package package is covered by the GNU General Public License.
+dnl by the GNU Lesser General Public License, and the rest of the GNU
+dnl gettext package is covered by the GNU General Public License.
 dnl They are *not* in the public domain.
 
 dnl Authors:
 dnl   Ulrich Drepper <drepper@cygnus.com>, 1995-2000.
 dnl   Bruno Haible <haible@clisp.cons.org>, 2000-2003.
 
-AC_PREREQ([2.50])
+AC_PREREQ([2.60])
 
 dnl Checks for all prerequisites of the po subdirectory.
 AC_DEFUN([AM_PO_SUBDIRS],
 [
   AC_REQUIRE([AC_PROG_MAKE_SET])dnl
   AC_REQUIRE([AC_PROG_INSTALL])dnl
-  AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake
+  AC_REQUIRE([AC_PROG_MKDIR_P])dnl
+  AC_REQUIRE([AC_PROG_SED])dnl
   AC_REQUIRE([AM_NLS])dnl
 
   dnl Release version of the gettext macros. This is used to ensure that
   dnl the gettext macros and po/Makefile.in.in are in sync.
-  AC_SUBST([GETTEXT_MACRO_VERSION], [0.18])
+  AC_SUBST([GETTEXT_MACRO_VERSION], [0.20])
 
   dnl Perform the following tests also if --disable-nls has been given,
   dnl because they are needed for "make dist" to work.
@@ -44,13 +45,6 @@ AC_DEFUN([AM_PO_SUBDIRS],
   AC_PATH_PROG([GMSGFMT], [gmsgfmt], [$MSGFMT])
 
   dnl Test whether it is GNU msgfmt >= 0.15.
-changequote(,)dnl
-  case `$MSGFMT --version | sed 1q | sed -e 's,^[^0-9]*,,'` in
-    '' | 0.[0-9] | 0.[0-9].* | 0.1[0-4] | 0.1[0-4].*) MSGFMT_015=: ;;
-    *) MSGFMT_015=$MSGFMT ;;
-  esac
-changequote([,])dnl
-  AC_SUBST([MSGFMT_015])
 changequote(,)dnl
   case `$GMSGFMT --version | sed 1q | sed -e 's,^[^0-9]*,,'` in
     '' | 0.[0-9] | 0.[0-9].* | 0.1[0-4] | 0.1[0-4].*) GMSGFMT_015=: ;;
@@ -82,11 +76,21 @@ changequote([,])dnl
   AM_PATH_PROG_WITH_TEST(MSGMERGE, msgmerge,
     [$ac_dir/$ac_word --update -q /dev/null /dev/null >&]AS_MESSAGE_LOG_FD[ 
2>&1], :)
 
-  dnl Installation directories.
-  dnl Autoconf >= 2.60 defines localedir. For older versions of autoconf, we
-  dnl have to define it here, so that it can be used in po/Makefile.
-  test -n "$localedir" || localedir='${datadir}/locale'
-  AC_SUBST([localedir])
+  dnl Test whether it is GNU msgmerge >= 0.20.
+  if LC_ALL=C $MSGMERGE --help | grep ' --for-msgfmt ' >/dev/null; then
+    MSGMERGE_FOR_MSGFMT_OPTION='--for-msgfmt'
+  else
+    dnl Test whether it is GNU msgmerge >= 0.12.
+    if LC_ALL=C $MSGMERGE --help | grep ' --no-fuzzy-matching ' >/dev/null; 
then
+      MSGMERGE_FOR_MSGFMT_OPTION='--no-fuzzy-matching --no-location --quiet'
+    else
+      dnl With these old versions, $(MSGMERGE) $(MSGMERGE_FOR_MSGFMT_OPTION) is
+      dnl slow. But this is not a big problem, as such old gettext versions are
+      dnl hardly in use any more.
+      MSGMERGE_FOR_MSGFMT_OPTION='--no-location --quiet'
+    fi
+  fi
+  AC_SUBST([MSGMERGE_FOR_MSGFMT_OPTION])
 
   dnl Support for AM_XGETTEXT_OPTION.
   test -n "${XGETTEXT_EXTRA_OPTIONS+set}" || XGETTEXT_EXTRA_OPTIONS=
@@ -102,7 +106,7 @@ changequote([,])dnl
       case "$ac_file" in */Makefile.in)
         # Adjust a relative srcdir.
         ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'`
-        ac_dir_suffix="/`echo "$ac_dir"|sed 's%^\./%%'`"
+        ac_dir_suffix=/`echo "$ac_dir"|sed 's%^\./%%'`
         ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'`
         # In autoconf-2.13 it is called $ac_given_srcdir.
         # In autoconf-2.50 it is called $srcdir.
@@ -118,7 +122,8 @@ changequote([,])dnl
         if test -f "$ac_given_srcdir/$ac_dir/POTFILES.in"; then
           rm -f "$ac_dir/POTFILES"
           test -n "$as_me" && echo "$as_me: creating $ac_dir/POTFILES" || echo 
"creating $ac_dir/POTFILES"
-          cat "$ac_given_srcdir/$ac_dir/POTFILES.in" | sed -e "/^#/d" -e "/^[  
]*\$/d" -e "s,.*,     $top_srcdir/& \\\\," | sed -e "\$s/\(.*\) \\\\/\1/" > 
"$ac_dir/POTFILES"
+          gt_tab=`printf '\t'`
+          cat "$ac_given_srcdir/$ac_dir/POTFILES.in" | sed -e "/^#/d" -e "/^[ 
${gt_tab}]*\$/d" -e "s,.*,     $top_srcdir/& \\\\," | sed -e "\$s/\(.*\) 
\\\\/\1/" > "$ac_dir/POTFILES"
           POMAKEFILEDEPS="POTFILES.in"
           # ALL_LINGUAS, POFILES, UPDATEPOFILES, DUMMYPOFILES, GMOFILES depend
           # on $ac_dir but don't depend on user-specified configuration
@@ -128,14 +133,11 @@ changequote([,])dnl
             if test -n "$OBSOLETE_ALL_LINGUAS"; then
               test -n "$as_me" && echo "$as_me: setting ALL_LINGUAS in 
configure.in is obsolete" || echo "setting ALL_LINGUAS in configure.in is 
obsolete"
             fi
-            ALL_LINGUAS_=`sed -e "/^#/d" -e "s/#.*//" 
"$ac_given_srcdir/$ac_dir/LINGUAS"`
-            # Hide the ALL_LINGUAS assigment from automake < 1.5.
-            eval 'ALL_LINGUAS''=$ALL_LINGUAS_'
+            ALL_LINGUAS=`sed -e "/^#/d" -e "s/#.*//" 
"$ac_given_srcdir/$ac_dir/LINGUAS"`
             POMAKEFILEDEPS="$POMAKEFILEDEPS LINGUAS"
           else
             # The set of available languages was given in configure.in.
-            # Hide the ALL_LINGUAS assigment from automake < 1.5.
-            eval 'ALL_LINGUAS''=$OBSOLETE_ALL_LINGUAS'
+            ALL_LINGUAS=$OBSOLETE_ALL_LINGUAS
           fi
           # Compute POFILES
           # as      $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(lang).po)
@@ -206,9 +208,8 @@ changequote([,])dnl
       esac
     done]],
    [# Capture the value of obsolete ALL_LINGUAS because we need it to compute
-    # POFILES, UPDATEPOFILES, DUMMYPOFILES, GMOFILES, CATALOGS. But hide it
-    # from automake < 1.5.
-    eval 'OBSOLETE_ALL_LINGUAS''="$ALL_LINGUAS"'
+    # POFILES, UPDATEPOFILES, DUMMYPOFILES, GMOFILES, CATALOGS.
+    OBSOLETE_ALL_LINGUAS="$ALL_LINGUAS"
     # Capture the value of LINGUAS because we need it to compute CATALOGS.
     LINGUAS="${LINGUAS-%UNSET%}"
    ])
@@ -226,7 +227,7 @@ AC_DEFUN([AM_POSTPROCESS_PO_MAKEFILE],
 changequote(,)dnl
   # Adjust a relative srcdir.
   ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'`
-  ac_dir_suffix="/`echo "$ac_dir"|sed 's%^\./%%'`"
+  ac_dir_suffix=/`echo "$ac_dir"|sed 's%^\./%%'`
   ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'`
   # In autoconf-2.13 it is called $ac_given_srcdir.
   # In autoconf-2.50 it is called $srcdir.
@@ -254,6 +255,7 @@ EOT
   fi
 
   # A sed script that extracts the value of VARIABLE from a Makefile.
+  tab=`printf '\t'`
   sed_x_variable='
 # Test if the hold space is empty.
 x
@@ -261,9 +263,9 @@ s/P/P/
 x
 ta
 # Yes it was empty. Look if we have the expected variable definition.
-/^[     ]*VARIABLE[     ]*=/{
+/^['"${tab}"' ]*VARIABLE['"${tab}"' ]*=/{
   # Seen the first line of the variable definition.
-  s/^[  ]*VARIABLE[     ]*=//
+  s/^['"${tab}"' ]*VARIABLE['"${tab}"' ]*=//
   ba
 }
 bd
@@ -308,15 +310,13 @@ changequote([,])dnl
   fi
   if test -f "$ac_given_srcdir/$ac_dir/LINGUAS"; then
     # The LINGUAS file contains the set of available languages.
-    ALL_LINGUAS_=`sed -e "/^#/d" -e "s/#.*//" 
"$ac_given_srcdir/$ac_dir/LINGUAS"`
+    ALL_LINGUAS=`sed -e "/^#/d" -e "s/#.*//" 
"$ac_given_srcdir/$ac_dir/LINGUAS"`
     POMAKEFILEDEPS="$POMAKEFILEDEPS LINGUAS"
   else
     # Set ALL_LINGUAS to the value of the Makefile variable LINGUAS.
     sed_x_LINGUAS=`$gt_echo "$sed_x_variable" | sed -e '/^ *#/d' -e 
's/VARIABLE/LINGUAS/g'`
-    ALL_LINGUAS_=`sed -n -e "$sed_x_LINGUAS" < "$ac_file"`
+    ALL_LINGUAS=`sed -n -e "$sed_x_LINGUAS" < "$ac_file"`
   fi
-  # Hide the ALL_LINGUAS assigment from automake < 1.5.
-  eval 'ALL_LINGUAS''=$ALL_LINGUAS_'
   # Compute POFILES
   # as      $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(lang).po)
   # Compute UPDATEPOFILES
@@ -326,9 +326,9 @@ changequote([,])dnl
   # Compute GMOFILES
   # as      $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(lang).gmo)
   # Compute PROPERTIESFILES
-  # as      $(foreach lang, $(ALL_LINGUAS), 
$(top_srcdir)/$(DOMAIN)_$(lang).properties)
+  # as      $(foreach lang, $(ALL_LINGUAS), 
$(srcdir)/$(DOMAIN)_$(lang).properties)
   # Compute CLASSFILES
-  # as      $(foreach lang, $(ALL_LINGUAS), 
$(top_srcdir)/$(DOMAIN)_$(lang).class)
+  # as      $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(DOMAIN)_$(lang).class)
   # Compute QMFILES
   # as      $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(lang).qm)
   # Compute MSGFILES
@@ -353,8 +353,8 @@ changequote([,])dnl
     UPDATEPOFILES="$UPDATEPOFILES $lang.po-update"
     DUMMYPOFILES="$DUMMYPOFILES $lang.nop"
     GMOFILES="$GMOFILES $srcdirpre$lang.gmo"
-    PROPERTIESFILES="$PROPERTIESFILES 
\$(top_srcdir)/\$(DOMAIN)_$lang.properties"
-    CLASSFILES="$CLASSFILES \$(top_srcdir)/\$(DOMAIN)_$lang.class"
+    PROPERTIESFILES="$PROPERTIESFILES \$(srcdir)/\$(DOMAIN)_$lang.properties"
+    CLASSFILES="$CLASSFILES \$(srcdir)/\$(DOMAIN)_$lang.class"
     QMFILES="$QMFILES $srcdirpre$lang.qm"
     frobbedlang=`echo $lang | sed -e 's/\..*$//' -e 
'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/'`
     MSGFILES="$MSGFILES $srcdirpre$frobbedlang.msg"
@@ -405,14 +405,15 @@ changequote([,])dnl
   fi
 
   sed -e "s|@POTFILES_DEPS@|$POTFILES_DEPS|g" -e "s|@POFILES@|$POFILES|g" -e 
"s|@UPDATEPOFILES@|$UPDATEPOFILES|g" -e "s|@DUMMYPOFILES@|$DUMMYPOFILES|g" -e 
"s|@GMOFILES@|$GMOFILES|g" -e "s|@PROPERTIESFILES@|$PROPERTIESFILES|g" -e 
"s|@CLASSFILES@|$CLASSFILES|g" -e "s|@QMFILES@|$QMFILES|g" -e 
"s|@MSGFILES@|$MSGFILES|g" -e "s|@RESOURCESDLLFILES@|$RESOURCESDLLFILES|g" -e 
"s|@CATALOGS@|$CATALOGS|g" -e "s|@JAVACATALOGS@|$JAVACATALOGS|g" -e 
"s|@QTCATALOGS@|$QTCATALOGS|g" -e "s|@TCLCATALOGS@|$TCL [...]
+  tab=`printf '\t'`
   if grep -l '@TCLCATALOGS@' "$ac_file" > /dev/null; then
     # Add dependencies that cannot be formulated as a simple suffix rule.
     for lang in $ALL_LINGUAS; do
       frobbedlang=`echo $lang | sed -e 's/\..*$//' -e 
'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/'`
       cat >> "$ac_file.tmp" <<EOF
 $frobbedlang.msg: $lang.po
-       @echo "\$(MSGFMT) -c --tcl -d \$(srcdir) -l $lang $srcdirpre$lang.po"; \
-       \$(MSGFMT) -c --tcl -d "\$(srcdir)" -l $lang $srcdirpre$lang.po || { rm 
-f "\$(srcdir)/$frobbedlang.msg"; exit 1; }
+${tab}@echo "\$(MSGFMT) -c --tcl -d \$(srcdir) -l $lang $srcdirpre$lang.po"; \
+${tab}\$(MSGFMT) -c --tcl -d "\$(srcdir)" -l $lang $srcdirpre$lang.po || { rm 
-f "\$(srcdir)/$frobbedlang.msg"; exit 1; }
 EOF
     done
   fi
@@ -422,8 +423,8 @@ EOF
       frobbedlang=`echo $lang | sed -e 's/_/-/g' -e 's/^sr-CS/sr-SP/' -e 
's/@latin$/-Latn/' -e 's/@cyrillic$/-Cyrl/' -e 's/^sr-SP$/sr-SP-Latn/' -e 
's/^uz-UZ$/uz-UZ-Latn/'`
       cat >> "$ac_file.tmp" <<EOF
 $frobbedlang/\$(DOMAIN).resources.dll: $lang.po
-       @echo "\$(MSGFMT) -c --csharp -d \$(srcdir) -l $lang $srcdirpre$lang.po 
-r \$(DOMAIN)"; \
-       \$(MSGFMT) -c --csharp -d "\$(srcdir)" -l $lang $srcdirpre$lang.po -r 
"\$(DOMAIN)" || { rm -f "\$(srcdir)/$frobbedlang.msg"; exit 1; }
+${tab}@echo "\$(MSGFMT) -c --csharp -d \$(srcdir) -l $lang $srcdirpre$lang.po 
-r \$(DOMAIN)"; \
+${tab}\$(MSGFMT) -c --csharp -d "\$(srcdir)" -l $lang $srcdirpre$lang.po -r 
"\$(DOMAIN)" || { rm -f "\$(srcdir)/$frobbedlang.msg"; exit 1; }
 EOF
     done
   fi
diff --git a/m4/progtest.m4 b/m4/progtest.m4
index 2d804ac..f28010a 100644
--- a/m4/progtest.m4
+++ b/m4/progtest.m4
@@ -1,16 +1,16 @@
-# progtest.m4 serial 6 (gettext-0.18)
-dnl Copyright (C) 1996-2003, 2005, 2008-2010 Free Software Foundation, Inc.
+# progtest.m4 serial 8 (gettext-0.20.2)
+dnl Copyright (C) 1996-2003, 2005, 2008-2020 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl
-dnl This file can can be used in projects which are not available under
-dnl the GNU General Public License or the GNU Library General Public
+dnl This file can be used in projects which are not available under
+dnl the GNU General Public License or the GNU Lesser General Public
 dnl License but which still want to provide support for the GNU gettext
 dnl functionality.
 dnl Please note that the actual code of the GNU gettext library is covered
-dnl by the GNU Library General Public License, and the rest of the GNU
-dnl gettext package package is covered by the GNU General Public License.
+dnl by the GNU Lesser General Public License, and the rest of the GNU
+dnl gettext package is covered by the GNU General Public License.
 dnl They are *not* in the public domain.
 
 dnl Authors:
@@ -27,15 +27,14 @@ AC_DEFUN([AM_PATH_PROG_WITH_TEST],
 # Prepare PATH_SEPARATOR.
 # The user is always right.
 if test "${PATH_SEPARATOR+set}" != set; then
-  echo "#! /bin/sh" >conf$$.sh
-  echo  "exit 0"   >>conf$$.sh
-  chmod +x conf$$.sh
-  if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
-    PATH_SEPARATOR=';'
-  else
-    PATH_SEPARATOR=:
-  fi
-  rm -f conf$$.sh
+  # Determine PATH_SEPARATOR by trying to find /bin/sh in a PATH which
+  # contains only /bin. Note that ksh looks also at the FPATH variable,
+  # so we have to set that as well for the test.
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
+    && { (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
+           || PATH_SEPARATOR=';'
+       }
 fi
 
 # Find out how to test for executable files. Don't use a zero-byte file,
diff --git a/po/ChangeLog b/po/ChangeLog
index 16bda42..605ec77 100644
--- a/po/ChangeLog
+++ b/po/ChangeLog
@@ -1,3 +1,12 @@
+2022-10-24  gettextize  <bug-gnu-gettext@gnu.org>
+
+       * Makefile.in.in: Upgrade to gettext-0.21.
+       * Rules-quot: Upgrade to gettext-0.21.
+       * en@boldquot.header: Upgrade to gettext-0.21.
+       * en@quot.header: Upgrade to gettext-0.21.
+       * insert-header.sin: Upgrade to gettext-0.21.
+       * remove-potcdate.sin: Upgrade to gettext-0.21.
+
 2012-03-07  gettextize  <bug-gnu-gettext@gnu.org>
 
        * Makefile.in.in: New file, from gettext-0.18.1.
diff --git a/po/Makefile.in.in b/po/Makefile.in.in
index 83d8838..6b25f0d 100644
--- a/po/Makefile.in.in
+++ b/po/Makefile.in.in
@@ -1,20 +1,20 @@
 # Makefile for PO directory in any package using GNU gettext.
-# Copyright (C) 1995-1997, 2000-2007, 2009-2010 by Ulrich Drepper 
<drepper@gnu.ai.mit.edu>
+# Copyright (C) 1995-2000 Ulrich Drepper <drepper@gnu.ai.mit.edu>
+# Copyright (C) 2000-2020 Free Software Foundation, Inc.
 #
-# This file can be copied and used freely without restrictions.  It can
-# be used in projects which are not available under the GNU General Public
-# License but which still want to provide support for the GNU gettext
-# functionality.
-# Please note that the actual code of GNU gettext is covered by the GNU
-# General Public License and is *not* in the public domain.
+# Copying and distribution of this file, with or without modification,
+# are permitted in any medium without royalty provided the copyright
+# notice and this notice are preserved.  This file is offered as-is,
+# without any warranty.
 #
-# Origin: gettext-0.18
-GETTEXT_MACRO_VERSION = 0.18
+# Origin: gettext-0.21
+GETTEXT_MACRO_VERSION = 0.20
 
 PACKAGE = @PACKAGE@
 VERSION = @VERSION@
 PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
 
+SED = @SED@
 SHELL = /bin/sh
 @SET_MAKE@
 
@@ -44,20 +44,22 @@ install_sh = $(SHELL) @install_sh@
 MKDIR_P = @MKDIR_P@
 mkdir_p = @mkdir_p@
 
+# When building gettext-tools, we prefer to use the built programs
+# rather than installed programs.  However, we can't do that when we
+# are cross compiling.
+CROSS_COMPILING = @CROSS_COMPILING@
+
 GMSGFMT_ = @GMSGFMT@
 GMSGFMT_no = @GMSGFMT@
 GMSGFMT_yes = @GMSGFMT_015@
 GMSGFMT = $(GMSGFMT_$(USE_MSGCTXT))
-MSGFMT_ = @MSGFMT@
-MSGFMT_no = @MSGFMT@
-MSGFMT_yes = @MSGFMT_015@
-MSGFMT = $(MSGFMT_$(USE_MSGCTXT))
 XGETTEXT_ = @XGETTEXT@
 XGETTEXT_no = @XGETTEXT@
 XGETTEXT_yes = @XGETTEXT_015@
 XGETTEXT = $(XGETTEXT_$(USE_MSGCTXT))
-MSGMERGE = msgmerge
+MSGMERGE = @MSGMERGE@
 MSGMERGE_UPDATE = @MSGMERGE@ --update
+MSGMERGE_FOR_MSGFMT_OPTION = @MSGMERGE_FOR_MSGFMT_OPTION@
 MSGINIT = msginit
 MSGCONV = msgconv
 MSGFILTER = msgfilter
@@ -76,34 +78,61 @@ POTFILES = \
 
 CATALOGS = @CATALOGS@
 
+POFILESDEPS_ = $(srcdir)/$(DOMAIN).pot
+POFILESDEPS_yes = $(POFILESDEPS_)
+POFILESDEPS_no =
+POFILESDEPS = $(POFILESDEPS_$(PO_DEPENDS_ON_POT))
+
+DISTFILESDEPS_ = update-po
+DISTFILESDEPS_yes = $(DISTFILESDEPS_)
+DISTFILESDEPS_no =
+DISTFILESDEPS = $(DISTFILESDEPS_$(DIST_DEPENDS_ON_UPDATE_PO))
+
 # Makevars gets inserted here. (Don't remove this line!)
 
-.SUFFIXES:
-.SUFFIXES: .po .gmo .mo .sed .sin .nop .po-create .po-update
+all: all-@USE_NLS@
 
-.po.mo:
-       @echo "$(MSGFMT) -c -o $@ $<"; \
-       $(MSGFMT) -c -o t-$@ $< && mv t-$@ $@
 
+.SUFFIXES:
+.SUFFIXES: .po .gmo .sed .sin .nop .po-create .po-update
+
+# The .pot file, stamp-po, .po files, and .gmo files appear in release 
tarballs.
+# The GNU Coding Standards say in
+# <https://www.gnu.org/prep/standards/html_node/Makefile-Basics.html>:
+#   "GNU distributions usually contain some files which are not source files
+#    ... . Since these files normally appear in the source directory, they
+#    should always appear in the source directory, not in the build directory.
+#    So Makefile rules to update them should put the updated files in the
+#    source directory."
+# Therefore we put these files in the source directory, not the build 
directory.
+
+# During .po -> .gmo conversion, take into account the most recent changes to
+# the .pot file. This eliminates the need to update the .po files when the
+# .pot file has changed, which would be troublesome if the .po files are put
+# under version control.
+$(GMOFILES): $(srcdir)/$(DOMAIN).pot
 .po.gmo:
        @lang=`echo $* | sed -e 's,.*/,,'`; \
        test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \
-       echo "$${cdcmd}rm -f $${lang}.gmo && $(GMSGFMT) -c --statistics 
--verbose -o $${lang}.gmo $${lang}.po"; \
-       cd $(srcdir) && rm -f $${lang}.gmo && $(GMSGFMT) -c --statistics 
--verbose -o t-$${lang}.gmo $${lang}.po && mv t-$${lang}.gmo $${lang}.gmo
+       echo "$${cdcmd}rm -f $${lang}.gmo && $(MSGMERGE) 
$(MSGMERGE_FOR_MSGFMT_OPTION) -o $${lang}.1po $${lang}.po $(DOMAIN).pot && 
$(GMSGFMT) -c --statistics --verbose -o $${lang}.gmo $${lang}.1po && rm -f 
$${lang}.1po"; \
+       cd $(srcdir) && \
+       rm -f $${lang}.gmo && \
+       $(MSGMERGE) $(MSGMERGE_FOR_MSGFMT_OPTION) -o $${lang}.1po $${lang}.po 
$(DOMAIN).pot && \
+       $(GMSGFMT) -c --statistics --verbose -o t-$${lang}.gmo $${lang}.1po && \
+       mv t-$${lang}.gmo $${lang}.gmo && \
+       rm -f $${lang}.1po
 
 .sin.sed:
        sed -e '/^#/d' $< > t-$@
        mv t-$@ $@
 
 
-all: check-macro-version all-@USE_NLS@
-
-all-yes: stamp-po
+all-yes: $(srcdir)/stamp-po
 all-no:
 
 # Ensure that the gettext macros and this Makefile.in.in are in sync.
-check-macro-version:
-       @test "$(GETTEXT_MACRO_VERSION)" = "@GETTEXT_MACRO_VERSION@" \
+CHECK_MACRO_VERSION = \
+       test "$(GETTEXT_MACRO_VERSION)" = "@GETTEXT_MACRO_VERSION@" \
          || { echo "*** error: gettext infrastructure mismatch: using a 
Makefile.in.in from gettext version $(GETTEXT_MACRO_VERSION) but the autoconf 
macros are from gettext version @GETTEXT_MACRO_VERSION@" 1>&2; \
               exit 1; \
             }
@@ -112,23 +141,24 @@ check-macro-version:
 # internationalized messages, no $(srcdir)/$(DOMAIN).pot is created (because
 # we don't want to bother translators with empty POT files). We assume that
 # LINGUAS is empty in this case, i.e. $(POFILES) and $(GMOFILES) are empty.
-# In this case, stamp-po is a nop (i.e. a phony target).
-
-# stamp-po is a timestamp denoting the last time at which the CATALOGS have
-# been loosely updated. Its purpose is that when a developer or translator
-# checks out the package via CVS, and the $(DOMAIN).pot file is not in CVS,
-# "make" will update the $(DOMAIN).pot and the $(CATALOGS), but subsequent
-# invocations of "make" will do nothing. This timestamp would not be necessary
-# if updating the $(CATALOGS) would always touch them; however, the rule for
-# $(POFILES) has been designed to not touch files that don't need to be
-# changed.
-stamp-po: $(srcdir)/$(DOMAIN).pot
+# In this case, $(srcdir)/stamp-po is a nop (i.e. a phony target).
+
+# $(srcdir)/stamp-po is a timestamp denoting the last time at which the 
CATALOGS
+# have been loosely updated. Its purpose is that when a developer or translator
+# checks out the package from a version control system, and the $(DOMAIN).pot
+# file is not under version control, "make" will update the $(DOMAIN).pot and
+# the $(CATALOGS), but subsequent invocations of "make" will do nothing. This
+# timestamp would not be necessary if updating the $(CATALOGS) would always
+# touch them; however, the rule for $(POFILES) has been designed to not touch
+# files that don't need to be changed.
+$(srcdir)/stamp-po: $(srcdir)/$(DOMAIN).pot
+       @$(CHECK_MACRO_VERSION)
        test ! -f $(srcdir)/$(DOMAIN).pot || \
          test -z "$(GMOFILES)" || $(MAKE) $(GMOFILES)
        @test ! -f $(srcdir)/$(DOMAIN).pot || { \
-         echo "touch stamp-po" && \
-         echo timestamp > stamp-poT && \
-         mv stamp-poT stamp-po; \
+         echo "touch $(srcdir)/stamp-po" && \
+         echo timestamp > $(srcdir)/stamp-poT && \
+         mv $(srcdir)/stamp-poT $(srcdir)/stamp-po; \
        }
 
 # Note: Target 'all' must not depend on target '$(DOMAIN).pot-update',
@@ -137,11 +167,27 @@ stamp-po: $(srcdir)/$(DOMAIN).pot
 
 # This target rebuilds $(DOMAIN).pot; it is an expensive operation.
 # Note that $(DOMAIN).pot is not touched if it doesn't need to be changed.
+# The determination of whether the package xyz is a GNU one is based on the
+# heuristic whether some file in the top level directory mentions "GNU xyz".
+# If GNU 'find' is available, we avoid grepping through monster files.
 $(DOMAIN).pot-update: $(POTFILES) $(srcdir)/POTFILES.in remove-potcdate.sed
-       if LC_ALL=C grep 'GNU @PACKAGE@' $(top_srcdir)/* 2>/dev/null | grep -v 
'libtool:' >/dev/null; then \
-         package_gnu='GNU '; \
+       package_gnu="$(PACKAGE_GNU)"; \
+       test -n "$$package_gnu" || { \
+         if { if (LC_ALL=C find --version) 2>/dev/null | grep GNU >/dev/null; 
then \
+                LC_ALL=C find -L $(top_srcdir) -maxdepth 1 -type f -size 
-10000000c -exec grep -i 'GNU @PACKAGE@' /dev/null '{}' ';' 2>/dev/null; \
+              else \
+                LC_ALL=C grep -i 'GNU @PACKAGE@' $(top_srcdir)/* 2>/dev/null; \
+              fi; \
+            } | grep -v 'libtool:' >/dev/null; then \
+            package_gnu=yes; \
+          else \
+            package_gnu=no; \
+          fi; \
+       }; \
+       if test "$$package_gnu" = "yes"; then \
+         package_prefix='GNU '; \
        else \
-         package_gnu=''; \
+         package_prefix=''; \
        fi; \
        if test -n '$(MSGID_BUGS_ADDRESS)' || test '$(PACKAGE_BUGREPORT)' = 
'@'PACKAGE_BUGREPORT'@'; then \
          msgid_bugs_address='$(MSGID_BUGS_ADDRESS)'; \
@@ -151,22 +197,30 @@ $(DOMAIN).pot-update: $(POTFILES) $(srcdir)/POTFILES.in 
remove-potcdate.sed
        case `$(XGETTEXT) --version | sed 1q | sed -e 's,^[^0-9]*,,'` in \
          '' | 0.[0-9] | 0.[0-9].* | 0.1[0-5] | 0.1[0-5].* | 0.16 | 
0.16.[0-1]*) \
            $(XGETTEXT) --default-domain=$(DOMAIN) --directory=$(top_srcdir) \
-             --add-comments=TRANSLATORS: $(XGETTEXT_OPTIONS) 
@XGETTEXT_EXTRA_OPTIONS@ \
+             --add-comments=TRANSLATORS: \
              --files-from=$(srcdir)/POTFILES.in \
              --copyright-holder='$(COPYRIGHT_HOLDER)' \
              --msgid-bugs-address="$$msgid_bugs_address" \
+             $(XGETTEXT_OPTIONS) @XGETTEXT_EXTRA_OPTIONS@ \
            ;; \
          *) \
            $(XGETTEXT) --default-domain=$(DOMAIN) --directory=$(top_srcdir) \
-             --add-comments=TRANSLATORS: $(XGETTEXT_OPTIONS) 
@XGETTEXT_EXTRA_OPTIONS@ \
+             --add-comments=TRANSLATORS: \
              --files-from=$(srcdir)/POTFILES.in \
              --copyright-holder='$(COPYRIGHT_HOLDER)' \
-             --package-name="$${package_gnu}@PACKAGE@" \
+             --package-name="$${package_prefix}@PACKAGE@" \
              --package-version='@VERSION@' \
              --msgid-bugs-address="$$msgid_bugs_address" \
+             $(XGETTEXT_OPTIONS) @XGETTEXT_EXTRA_OPTIONS@ \
            ;; \
        esac
        test ! -f $(DOMAIN).po || { \
+         if test -f $(srcdir)/$(DOMAIN).pot-header; then \
+           sed -e '1,/^#$$/d' < $(DOMAIN).po > $(DOMAIN).1po && \
+           cat $(srcdir)/$(DOMAIN).pot-header $(DOMAIN).1po > $(DOMAIN).po && \
+           rm -f $(DOMAIN).1po \
+           || exit 1; \
+         fi; \
          if test -f $(srcdir)/$(DOMAIN).pot; then \
            sed -f remove-potcdate.sed < $(srcdir)/$(DOMAIN).pot > 
$(DOMAIN).1po && \
            sed -f remove-potcdate.sed < $(DOMAIN).po > $(DOMAIN).2po && \
@@ -189,17 +243,20 @@ $(srcdir)/$(DOMAIN).pot:
 
 # This target rebuilds a PO file if $(DOMAIN).pot has changed.
 # Note that a PO file is not touched if it doesn't need to be changed.
-$(POFILES): $(srcdir)/$(DOMAIN).pot
+$(POFILES): $(POFILESDEPS)
+       @test -f $(srcdir)/$(DOMAIN).pot || $(MAKE) $(srcdir)/$(DOMAIN).pot
        @lang=`echo $@ | sed -e 's,.*/,,' -e 's/\.po$$//'`; \
        if test -f "$(srcdir)/$${lang}.po"; then \
          test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \
-         echo "$${cdcmd}$(MSGMERGE_UPDATE) $(MSGMERGE_OPTIONS) --lang=$${lang} 
$${lang}.po $(DOMAIN).pot"; \
+         echo "$${cdcmd}$(MSGMERGE_UPDATE) $(MSGMERGE_OPTIONS) --lang=$${lang} 
--previous $${lang}.po $(DOMAIN).pot"; \
          cd $(srcdir) \
            && { case `$(MSGMERGE_UPDATE) --version | sed 1q | sed -e 
's,^[^0-9]*,,'` in \
-                  '' | 0.[0-9] | 0.[0-9].* | 0.1[0-7] | 0.1[0-7].*) \
+                  '' | 0.[0-9] | 0.[0-9].* | 0.1[0-5] | 0.1[0-5].*) \
                     $(MSGMERGE_UPDATE) $(MSGMERGE_OPTIONS) $${lang}.po 
$(DOMAIN).pot;; \
+                  0.1[6-7] | 0.1[6-7].*) \
+                    $(MSGMERGE_UPDATE) $(MSGMERGE_OPTIONS) --previous 
$${lang}.po $(DOMAIN).pot;; \
                   *) \
-                    $(MSGMERGE_UPDATE) $(MSGMERGE_OPTIONS) --lang=$${lang} 
$${lang}.po $(DOMAIN).pot;; \
+                    $(MSGMERGE_UPDATE) $(MSGMERGE_OPTIONS) --lang=$${lang} 
--previous $${lang}.po $(DOMAIN).pot;; \
                 esac; \
               }; \
        else \
@@ -334,34 +391,41 @@ check: all
 
 info dvi ps pdf html tags TAGS ctags CTAGS ID:
 
+install-dvi install-ps install-pdf install-html:
+
 mostlyclean:
        rm -f remove-potcdate.sed
-       rm -f stamp-poT
+       rm -f $(srcdir)/stamp-poT
        rm -f core core.* $(DOMAIN).po $(DOMAIN).1po $(DOMAIN).2po *.new.po
        rm -fr *.o
 
 clean: mostlyclean
 
 distclean: clean
-       rm -f Makefile Makefile.in POTFILES *.mo
+       rm -f Makefile Makefile.in POTFILES
 
 maintainer-clean: distclean
        @echo "This command is intended for maintainers to use;"
        @echo "it deletes files that may require special tools to rebuild."
-       rm -f stamp-po $(GMOFILES)
+       rm -f $(srcdir)/$(DOMAIN).pot $(srcdir)/stamp-po $(GMOFILES)
 
 distdir = $(top_builddir)/$(PACKAGE)-$(VERSION)/$(subdir)
 dist distdir:
-       $(MAKE) update-po
+       test -z "$(DISTFILESDEPS)" || $(MAKE) $(DISTFILESDEPS)
        @$(MAKE) dist2
 # This is a separate target because 'update-po' must be executed before.
-dist2: stamp-po $(DISTFILES)
-       dists="$(DISTFILES)"; \
+dist2: $(srcdir)/stamp-po $(DISTFILES)
+       @dists="$(DISTFILES)"; \
        if test "$(PACKAGE)" = "gettext-tools"; then \
          dists="$$dists Makevars.template"; \
        fi; \
        if test -f $(srcdir)/$(DOMAIN).pot; then \
          dists="$$dists $(DOMAIN).pot stamp-po"; \
+       else \
+         case $(XGETTEXT) in \
+           :) echo "Warning: Creating a tarball without '$(DOMAIN).pot', 
because a suitable 'xgettext' program was not found in PATH." 1>&2;; \
+           *) echo "Warning: Creating a tarball without '$(DOMAIN).pot', 
because 'xgettext' found no strings to extract. Check the contents of the 
POTFILES.in file and the XGETTEXT_OPTIONS in the Makevars file." 1>&2;; \
+         esac; \
        fi; \
        if test -f $(srcdir)/ChangeLog; then \
          dists="$$dists ChangeLog"; \
@@ -396,17 +460,19 @@ update-po: Makefile
 
 .nop.po-update:
        @lang=`echo $@ | sed -e 's/\.po-update$$//'`; \
-       if test "$(PACKAGE)" = "gettext-tools"; then PATH=`pwd`/../src:$$PATH; 
fi; \
+       if test "$(PACKAGE)" = "gettext-tools" && test "$(CROSS_COMPILING)" != 
"yes"; then PATH=`pwd`/../src:$$PATH; fi; \
        tmpdir=`pwd`; \
        echo "$$lang:"; \
        test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \
-       echo "$${cdcmd}$(MSGMERGE) $(MSGMERGE_OPTIONS) --lang=$$lang $$lang.po 
$(DOMAIN).pot -o $$lang.new.po"; \
+       echo "$${cdcmd}$(MSGMERGE) $(MSGMERGE_OPTIONS) --lang=$$lang --previous 
$$lang.po $(DOMAIN).pot -o $$lang.new.po"; \
        cd $(srcdir); \
        if { case `$(MSGMERGE) --version | sed 1q | sed -e 's,^[^0-9]*,,'` in \
-              '' | 0.[0-9] | 0.[0-9].* | 0.1[0-7] | 0.1[0-7].*) \
+              '' | 0.[0-9] | 0.[0-9].* | 0.1[0-5] | 0.1[0-5].*) \
                 $(MSGMERGE) $(MSGMERGE_OPTIONS) -o $$tmpdir/$$lang.new.po 
$$lang.po $(DOMAIN).pot;; \
+              0.1[6-7] | 0.1[6-7].*) \
+                $(MSGMERGE) $(MSGMERGE_OPTIONS) --previous -o 
$$tmpdir/$$lang.new.po $$lang.po $(DOMAIN).pot;; \
               *) \
-                $(MSGMERGE) $(MSGMERGE_OPTIONS) --lang=$$lang -o 
$$tmpdir/$$lang.new.po $$lang.po $(DOMAIN).pot;; \
+                $(MSGMERGE) $(MSGMERGE_OPTIONS) --lang=$$lang --previous -o 
$$tmpdir/$$lang.new.po $$lang.po $(DOMAIN).pot;; \
             esac; \
           }; then \
          if cmp $$lang.po $$tmpdir/$$lang.new.po >/dev/null 2>&1; then \
diff --git a/po/Rules-quot b/po/Rules-quot
index af52487..18c024b 100644
--- a/po/Rules-quot
+++ b/po/Rules-quot
@@ -1,4 +1,9 @@
 # Special Makefile rules for English message catalogs with quotation marks.
+#
+# Copyright (C) 2001-2017 Free Software Foundation, Inc.
+# This file, Rules-quot, and its auxiliary files (listed under
+# DISTFILES.common.extra1) are free software; the Free Software Foundation
+# gives unlimited permission to use, copy, distribute, and modify them.
 
 DISTFILES.common.extra1 = quot.sed boldquot.sed en@quot.header 
en@boldquot.header insert-header.sin Rules-quot
 
@@ -14,13 +19,23 @@ en@boldquot.po-update: en@boldquot.po-update-en
 
 .insert-header.po-update-en:
        @lang=`echo $@ | sed -e 's/\.po-update-en$$//'`; \
-       if test "$(PACKAGE)" = "gettext"; then PATH=`pwd`/../src:$$PATH; 
GETTEXTLIBDIR=`cd $(top_srcdir)/src && pwd`; export GETTEXTLIBDIR; fi; \
+       if test "$(PACKAGE)" = "gettext-tools" && test "$(CROSS_COMPILING)" != 
"yes"; then PATH=`pwd`/../src:$$PATH; GETTEXTLIBDIR=`cd $(top_srcdir)/src && 
pwd`; export GETTEXTLIBDIR; fi; \
        tmpdir=`pwd`; \
        echo "$$lang:"; \
        ll=`echo $$lang | sed -e 's/@.*//'`; \
        LC_ALL=C; export LC_ALL; \
        cd $(srcdir); \
-       if $(MSGINIT) -i $(DOMAIN).pot --no-translator -l $$lang -o - 
2>/dev/null | sed -f $$tmpdir/$$lang.insert-header | $(MSGCONV) -t UTF-8 | 
$(MSGFILTER) sed -f `echo $$lang | sed -e 's/.*@//'`.sed 2>/dev/null > 
$$tmpdir/$$lang.new.po; then \
+       if $(MSGINIT) $(MSGINIT_OPTIONS) -i $(DOMAIN).pot --no-translator -l 
$$lang -o - 2>/dev/null \
+          | $(SED) -f $$tmpdir/$$lang.insert-header | $(MSGCONV) -t UTF-8 | \
+          { case `$(MSGFILTER) --version | sed 1q | sed -e 's,^[^0-9]*,,'` in \
+            '' | 0.[0-9] | 0.[0-9].* | 0.1[0-8] | 0.1[0-8].*) \
+              $(MSGFILTER) $(SED) -f `echo $$lang | sed -e 's/.*@//'`.sed \
+              ;; \
+            *) \
+              $(MSGFILTER) `echo $$lang | sed -e 's/.*@//'` \
+              ;; \
+            esac } 2>/dev/null > $$tmpdir/$$lang.new.po \
+            ; then \
          if cmp $$lang.po $$tmpdir/$$lang.new.po >/dev/null 2>&1; then \
            rm -f $$tmpdir/$$lang.new.po; \
          else \
diff --git a/po/en@boldquot.header b/po/en@boldquot.header
index fedb6a0..506ca9e 100644
--- a/po/en@boldquot.header
+++ b/po/en@boldquot.header
@@ -2,7 +2,7 @@
 # The msgids must be ASCII and therefore cannot contain real quotation
 # characters, only substitutes like grave accent (0x60), apostrophe (0x27)
 # and double quote (0x22). These substitutes look strange; see
-# http://www.cl.cam.ac.uk/~mgk25/ucs/quotes.html
+# https://www.cl.cam.ac.uk/~mgk25/ucs/quotes.html
 #
 # This catalog translates grave accent (0x60) and apostrophe (0x27) to
 # left single quotation mark (U+2018) and right single quotation mark (U+2019).
diff --git a/po/en@quot.header b/po/en@quot.header
index a9647fc..6522f0c 100644
--- a/po/en@quot.header
+++ b/po/en@quot.header
@@ -2,7 +2,7 @@
 # The msgids must be ASCII and therefore cannot contain real quotation
 # characters, only substitutes like grave accent (0x60), apostrophe (0x27)
 # and double quote (0x22). These substitutes look strange; see
-# http://www.cl.cam.ac.uk/~mgk25/ucs/quotes.html
+# https://www.cl.cam.ac.uk/~mgk25/ucs/quotes.html
 #
 # This catalog translates grave accent (0x60) and apostrophe (0x27) to
 # left single quotation mark (U+2018) and right single quotation mark (U+2019).
diff --git a/po/insert-header.sin b/po/insert-header.sin
index b26de01..ceeebb9 100644
--- a/po/insert-header.sin
+++ b/po/insert-header.sin
@@ -1,5 +1,10 @@
 # Sed script that inserts the file called HEADER before the header entry.
 #
+# Copyright (C) 2001 Free Software Foundation, Inc.
+# Written by Bruno Haible <bruno@clisp.org>, 2001.
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to use, copy, distribute, and modify it.
+#
 # At each occurrence of a line starting with "msgid ", we execute the following
 # commands. At the first occurrence, insert the file. At the following
 # occurrences, do nothing. The distinction between the first and the following
diff --git a/po/remove-potcdate.sin b/po/remove-potcdate.sin
index 2436c49..8c70dfb 100644
--- a/po/remove-potcdate.sin
+++ b/po/remove-potcdate.sin
@@ -1,6 +1,12 @@
-# Sed script that remove the POT-Creation-Date line in the header entry
+# Sed script that removes the POT-Creation-Date line in the header entry
 # from a POT file.
 #
+# Copyright (C) 2002 Free Software Foundation, Inc.
+# Copying and distribution of this file, with or without modification,
+# are permitted in any medium without royalty provided the copyright
+# notice and this notice are preserved.  This file is offered as-is,
+# without any warranty.
+#
 # The distinction between the first and the following occurrences of the
 # pattern is achieved by looking at the hold space.
 /^"POT-Creation-Date: .*"$/{
diff --git a/src/ext/Makefile.am b/src/ext/Makefile.am
index b5c04e7..1f3fa1e 100644
--- a/src/ext/Makefile.am
+++ b/src/ext/Makefile.am
@@ -1,11 +1,9 @@
 # This Makefile.am is in the public domain
 SUBDIRS = .
 
-INCLUDES = \
-  -I$(top_srcdir)/src/include \
-  -I$(top_srcdir)
-
 AM_CPPFLAGS = \
+  -I$(top_srcdir)/src/include \
+  -I$(top_srcdir) \
   $(GNUNET_CPPFLAGS)
 
 # Set this variable if you are using GNUNET libraries for all programs and

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