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[PATCH 2/5] make fetch


From: Zack Weinberg
Subject: [PATCH 2/5] make fetch
Date: Sun, 10 Jul 2022 15:08:58 -0400

Our local patches to lib/Autom4te/FileUtils.pm and maint.mk were
manually reapplied.
---
 GNUmakefile                      |    2 +-
 build-aux/announce-gen           |  114 ++-
 build-aux/config.guess           | 1262 ++++++++++++++++--------------
 build-aux/config.sub             |   94 ++-
 build-aux/gendocs.sh             |   12 +-
 build-aux/git-version-gen        |   21 +-
 build-aux/gitlog-to-changelog    |    7 +-
 build-aux/gnupload               |   13 +-
 build-aux/move-if-change         |    2 +-
 build-aux/texinfo.tex            |  347 +++-----
 build-aux/update-copyright       |    4 +-
 build-aux/useless-if-before-free |   20 +-
 build-aux/vc-list-files          |    2 +-
 doc/gendocs_template             |    4 +-
 doc/standards.texi               |   51 +-
 lib/Autom4te/ChannelDefs.pm      |    2 +-
 lib/Autom4te/Channels.pm         |    2 +-
 lib/Autom4te/Configure_ac.pm     |    2 +-
 lib/Autom4te/FileUtils.pm        |    2 +-
 lib/Autom4te/Getopt.pm           |    2 +-
 lib/Autom4te/XFile.pm            |    2 +-
 m4/autobuild.m4                  |    2 +-
 maint.mk                         |   59 +-
 23 files changed, 1053 insertions(+), 975 deletions(-)

diff --git a/GNUmakefile b/GNUmakefile
index 0c99d584..7a08c9d5 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -5,7 +5,7 @@
 # It is necessary if you want to build targets usually of interest
 # only to the maintainer.
 
-# Copyright (C) 2001, 2003, 2006-2021 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2003, 2006-2022 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/build-aux/announce-gen b/build-aux/announce-gen
index 84d2d637..3847a568 100755
--- a/build-aux/announce-gen
+++ b/build-aux/announce-gen
@@ -3,7 +3,7 @@
 
 # Generate a release announcement message.
 
-# Copyright (C) 2002-2021 Free Software Foundation, Inc.
+# Copyright (C) 2002-2022 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -35,12 +35,14 @@
 eval 'exec perl -wSx "$0" "$@"'
      if 0;
 
-my $VERSION = '2020-05-10 16:13'; # UTC
+my $VERSION = '2022-07-10 01:47'; # UTC
 # The definition above must lie within the first 8 lines in order
 # for the Emacs time-stamp write hook (at end) to update it.
 # If you change this file with Emacs, please let the write hook
 # do its job.  Otherwise, update this string manually.
 
+my $copyright_year = '2022';
+
 use strict;
 use Getopt::Long;
 use POSIX qw(strftime);
@@ -49,12 +51,6 @@ use POSIX qw(strftime);
 
 my %valid_release_types = map {$_ => 1} qw (alpha beta stable);
 my @archive_suffixes = qw (tar.gz tar.bz2 tar.lz tar.lzma tar.xz);
-my %digest_classes =
-  (
-   'md5' => (eval { require Digest::MD5; } and 'Digest::MD5'),
-   'sha1' => ((eval { require Digest::SHA; } and 'Digest::SHA')
-              or (eval { require Digest::SHA1; } and 'Digest::SHA1'))
-  );
 my $srcdir = '.';
 
 sub usage ($)
@@ -94,7 +90,11 @@ The following are optional:
                                 VERSION is the result of running git describe
                                 in the gnulib source directory.
                                 required if gnulib is in TOOL_LIST.
-   --no-print-checksums         do not emit MD5 or SHA1 checksums
+   --gpg-key-email=EMAIL        The email address of the key used to
+                                sign the tarballs
+   --gpg-keyring-url=URL        URL pointing to keyring containing the key used
+                                to sign the tarballs
+   --no-print-checksums         do not emit SHA1 or SHA256 checksums
    --archive-suffix=SUF         add SUF to the list of archive suffixes
    --mail-headers=HEADERS       a space-separated list of mail headers, e.g.,
                                 To: x\@example.com Cc: 
y-announce\@example.com,...
@@ -161,7 +161,7 @@ sub print_locations ($\@\%@)
 
 =item C<print_checksums (@file)
 
-Print the MD5 and SHA1 signature section for each C<@file>.
+Print the SHA1 and SHA256 signature section for each C<@file>.
 
 =cut
 
@@ -169,23 +169,18 @@ sub print_checksums (@)
 {
   my (@file) = @_;
 
-  print "Here are the MD5 and SHA1 checksums:\n";
+  print "Here are the SHA1 and SHA256 checksums:\n";
   print "\n";
 
-  foreach my $meth (qw (md5 sha1))
+  use Digest::file qw(digest_file_hex digest_file_base64);
+
+  foreach my $f (@file)
     {
-      my $class = $digest_classes{$meth} or next;
-      foreach my $f (@file)
-        {
-          open IN, '<', $f
-            or die "$ME: $f: cannot open for reading: $!\n";
-          binmode IN;
-          my $dig = $class->new->addfile(*IN)->hexdigest;
-          close IN;
-          print "$dig  $f\n";
-        }
+      print digest_file_hex($f, "SHA-1"), "  $f\n";
+      print digest_file_base64($f, "SHA-256"), "  $f\n";
     }
-  print "\n";
+  print "\nThe SHA256 checksum is base64 encoded, instead of the\n";
+  print "hexadecimal encoding that most checksum tools default to.\n\n";
 }
 
 =item C<print_news_deltas ($news_file, $prev_version, $curr_version)
@@ -386,6 +381,8 @@ sub get_tool_versions ($$)
   my $bootstrap_tools;
   my $gnulib_version;
   my $print_checksums_p = 1;
+  my $gpg_key_email;
+  my $gpg_keyring_url;
 
   # Reformat the warnings before displaying them.
   local $SIG{__WARN__} = sub
@@ -404,6 +401,8 @@ sub get_tool_versions ($$)
      'previous-version=s' => \$prev_version,
      'current-version=s'  => \$curr_version,
      'gpg-key-id=s'       => \$gpg_key_id,
+     'gpg-key-email=s'    => \$gpg_key_email,
+     'gpg-keyring-url=s'  => \$gpg_keyring_url,
      'url-directory=s'    => \@url_dir_list,
      'news=s'             => \@news_file,
      'srcdir=s'           => \$srcdir,
@@ -413,7 +412,19 @@ sub get_tool_versions ($$)
      'archive-suffix=s'   => \@archive_suffixes,
 
      help => sub { usage 0 },
-     version => sub { print "$ME version $VERSION\n"; exit },
+     version =>
+       sub
+       {
+         print "$ME version $VERSION\n";
+         print "Copyright (C) $copyright_year Free Software Foundation, 
Inc.\n";
+         print "License GPLv3+: GNU GPL version 3 or later 
<https://gnu.org/licenses/gpl.html>.\n"
+             . "This is free software: you are free to change and redistribute 
it.\n"
+             . "There is NO WARRANTY, to the extent permitted by law.\n";
+         print "\n";
+         my $author = "Jim Meyering";
+         print "Written by $author.\n";
+         exit
+       },
     ) or usage 1;
 
   my $fail = 0;
@@ -434,11 +445,15 @@ sub get_tool_versions ($$)
   my @tool_list = split ',', $bootstrap_tools
     if $bootstrap_tools;
 
-  grep (/^gnulib$/, @tool_list) ^ defined $gnulib_version
+  grep (/^gnulib$/, @tool_list) && ! defined $gnulib_version
     and (warn "when specifying gnulib as a tool, you must also specify\n"
         . "--gnulib-version=V, where V is the result of running git describe\n"
         . "in the gnulib source directory.\n"), $fail = 1;
 
+  ! grep (/^gnulib$/, @tool_list) && defined $gnulib_version
+    and (warn "with --gnulib-version=V you must use --bootstrap-tools=...\n"
+         . "including gnulib in that list"), $fail = 1;
+
   !$release_type || exists $valid_release_types{$release_type}
     or (warn "'$release_type': invalid release type\n"), $fail = 1;
 
@@ -487,7 +502,7 @@ EOF
     {
       # When there's only one tarball and one URL, use a more concise form.
       my $m = "$url_dir_list[0]/$tarballs[0]";
-      print "Here are the compressed sources and a GPG detached 
signature[*]:\n"
+      print "Here are the compressed sources and a GPG detached signature:\n"
         . "  $m\n"
         . "  $m.sig\n\n";
     }
@@ -499,7 +514,7 @@ EOF
                              . "please tell bug-gnulib\@gnu.org)",
                              @url_dir_list, %size, $xd);
       my @sig_files = map { "$_.sig" } @tarballs;
-      print_locations ("GPG detached signatures[*]", @url_dir_list, %size,
+      print_locations ("GPG detached signatures", @url_dir_list, %size,
                        @sig_files);
     }
 
@@ -524,18 +539,55 @@ EOF
     and print_checksums (@sizable);
 
   print <<EOF;
-[*] Use a .sig file to verify that the corresponding file (without the
+Use a .sig file to verify that the corresponding file (without the
 .sig suffix) is intact.  First, be sure to download both the .sig file
 and the corresponding tarball.  Then, run a command like this:
 
   gpg --verify $tarballs[0].sig
 
+EOF
+  my $gpg_fingerprint = `LC_ALL=C gpg --fingerprint $gpg_key_id | grep -v 
^sub`;
+  if ($gpg_fingerprint =~ /^pub/)
+    {
+      chop $gpg_fingerprint;
+      $gpg_fingerprint =~ s/ \[expires:.*//mg;
+      $gpg_fingerprint =~ s/^uid           \[ultimate\]/uid  /mg;
+      $gpg_fingerprint =~ s/^/  /mg;
+      print<<EOF
+The signature should match the fingerprint of the following key:
+
+$gpg_fingerprint
+EOF
+    }
+  print <<EOF;
 If that command fails because you don't have the required public key,
-then run this command to import it:
+or that public key has expired, try the following commands to retrieve
+or refresh it, and then rerun the 'gpg --verify' command.
+EOF
+  if ($gpg_key_email) {
+    print <<EOF;
 
-  gpg --keyserver keys.gnupg.net --recv-keys $gpg_key_id
+  gpg --locate-external-key $gpg_key_email
+EOF
+    }
+  print <<EOF;
+
+  gpg --recv-keys $gpg_key_id
+EOF
+    if ($gpg_keyring_url) {
+      print <<EOF;
+
+  wget -q -O- '$gpg_keyring_url' | gpg --import -
+EOF
+      }
+  print <<EOF;
+
+As a last resort to find the key, you can try the official GNU
+keyring:
+
+  wget -q https://ftp.gnu.org/gnu/gnu-keyring.gpg
+  gpg --keyring gnu-keyring.gpg --verify $tarballs[0].sig
 
-and rerun the 'gpg --verify' command.
 EOF
 
   my @tool_versions = get_tool_versions (\@tool_list, $gnulib_version);
diff --git a/build-aux/config.guess b/build-aux/config.guess
index 1972fda8..1817bdce 100755
--- a/build-aux/config.guess
+++ b/build-aux/config.guess
@@ -1,12 +1,14 @@
 #! /bin/sh
 # Attempt to guess a canonical system name.
-#   Copyright 1992-2021 Free Software Foundation, Inc.
+#   Copyright 1992-2022 Free Software Foundation, Inc.
 
-timestamp='2021-01-25'
+# shellcheck disable=SC2006,SC2268 # see below for rationale
+
+timestamp='2022-05-25'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
+# the Free Software Foundation, either version 3 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful, but
@@ -32,7 +34,15 @@ timestamp='2021-01-25'
 # Please send patches to <config-patches@gnu.org>.
 
 
-me=$(echo "$0" | sed -e 's,.*/,,')
+# The "shellcheck disable" line above the timestamp inhibits complaints
+# about features and limitations of the classic Bourne shell that were
+# superseded or lifted in POSIX.  However, this script identifies a wide
+# variety of pre-POSIX systems that do not have POSIX shells at all, and
+# even some reasonably current systems (Solaris 10 as case-in-point) still
+# have a pre-POSIX /bin/sh.
+
+
+me=`echo "$0" | sed -e 's,.*/,,'`
 
 usage="\
 Usage: $0 [OPTION]
@@ -50,7 +60,7 @@ version="\
 GNU config.guess ($timestamp)
 
 Originally written by Per Bothner.
-Copyright 1992-2021 Free Software Foundation, Inc.
+Copyright 1992-2022 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -84,6 +94,9 @@ if test $# != 0; then
   exit 1
 fi
 
+# Just in case it came from the environment.
+GUESS=
+
 # CC_FOR_BUILD -- compiler used by this script. Note that the use of a
 # compiler to aid in system detection is discouraged as it requires
 # temporary files to be created and, as you can see below, it is a
@@ -102,8 +115,8 @@ set_cc_for_build() {
     # prevent multiple calls if $tmp is already set
     test "$tmp" && return 0
     : "${TMPDIR=/tmp}"
-    # shellcheck disable=SC2039
-    { tmp=$( (umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null) && test 
-n "$tmp" && test -d "$tmp" ; } ||
+    # shellcheck disable=SC2039,SC3028
+    { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n 
"$tmp" && test -d "$tmp" ; } ||
        { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir 
"$tmp" 2>/dev/null) ; } ||
        { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir "$tmp" 2>/dev/null) && echo 
"Warning: creating insecure temp directory" >&2 ; } ||
        { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 
1 ; }
@@ -112,7 +125,7 @@ set_cc_for_build() {
        ,,)    echo "int x;" > "$dummy.c"
               for driver in cc gcc c89 c99 ; do
                   if ($driver -c -o "$dummy.o" "$dummy.c") >/dev/null 2>&1 ; 
then
-                      CC_FOR_BUILD="$driver"
+                      CC_FOR_BUILD=$driver
                       break
                   fi
               done
@@ -131,12 +144,12 @@ if test -f /.attbin/uname ; then
        PATH=$PATH:/.attbin ; export PATH
 fi
 
-UNAME_MACHINE=$( (uname -m) 2>/dev/null) || UNAME_MACHINE=unknown
-UNAME_RELEASE=$( (uname -r) 2>/dev/null) || UNAME_RELEASE=unknown
-UNAME_SYSTEM=$( (uname -s) 2>/dev/null) || UNAME_SYSTEM=unknown
-UNAME_VERSION=$( (uname -v) 2>/dev/null) || UNAME_VERSION=unknown
+UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
+UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
+UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown
+UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
 
-case "$UNAME_SYSTEM" in
+case $UNAME_SYSTEM in
 Linux|GNU|GNU/*)
        LIBC=unknown
 
@@ -157,7 +170,8 @@ Linux|GNU|GNU/*)
        #endif
        #endif
        EOF
-       eval "$($CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^LIBC' | sed 
's, ,,g')"
+       cc_set_libc=`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^LIBC' | 
sed 's, ,,g'`
+       eval "$cc_set_libc"
 
        # Second heuristic to detect musl libc.
        if [ "$LIBC" = unknown ] &&
@@ -176,7 +190,7 @@ esac
 
 # Note: order is significant - the case branches are not exclusive.
 
-case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in
+case $UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION in
     *:NetBSD:*:*)
        # NetBSD (nbsd) targets should (where applicable) match one or
        # more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*,
@@ -188,11 +202,11 @@ case 
"$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in
        #
        # Note: NetBSD doesn't particularly care about the vendor
        # portion of the name.  We always set it to "unknown".
-       UNAME_MACHINE_ARCH=$( (uname -p 2>/dev/null || \
+       UNAME_MACHINE_ARCH=`(uname -p 2>/dev/null || \
            /sbin/sysctl -n hw.machine_arch 2>/dev/null || \
            /usr/sbin/sysctl -n hw.machine_arch 2>/dev/null || \
-           echo unknown))
-       case "$UNAME_MACHINE_ARCH" in
+           echo unknown)`
+       case $UNAME_MACHINE_ARCH in
            aarch64eb) machine=aarch64_be-unknown ;;
            armeb) machine=armeb-unknown ;;
            arm*) machine=arm-unknown ;;
@@ -200,15 +214,15 @@ case 
"$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in
            sh3eb) machine=sh-unknown ;;
            sh5el) machine=sh5le-unknown ;;
            earmv*)
-               arch=$(echo "$UNAME_MACHINE_ARCH" | sed -e 
's,^e\(armv[0-9]\).*$,\1,')
-               endian=$(echo "$UNAME_MACHINE_ARCH" | sed -ne 
's,^.*\(eb\)$,\1,p')
-               machine="${arch}${endian}"-unknown
+               arch=`echo "$UNAME_MACHINE_ARCH" | sed -e 
's,^e\(armv[0-9]\).*$,\1,'`
+               endian=`echo "$UNAME_MACHINE_ARCH" | sed -ne 
's,^.*\(eb\)$,\1,p'`
+               machine=${arch}${endian}-unknown
                ;;
-           *) machine="$UNAME_MACHINE_ARCH"-unknown ;;
+           *) machine=$UNAME_MACHINE_ARCH-unknown ;;
        esac
        # The Operating System including object format, if it has switched
        # to ELF recently (or will in the future) and ABI.
-       case "$UNAME_MACHINE_ARCH" in
+       case $UNAME_MACHINE_ARCH in
            earm*)
                os=netbsdelf
                ;;
@@ -229,10 +243,10 @@ case 
"$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in
                ;;
        esac
        # Determine ABI tags.
-       case "$UNAME_MACHINE_ARCH" in
+       case $UNAME_MACHINE_ARCH in
            earm*)
                expr='s/^earmv[0-9]/-eabi/;s/eb$//'
-               abi=$(echo "$UNAME_MACHINE_ARCH" | sed -e "$expr")
+               abi=`echo "$UNAME_MACHINE_ARCH" | sed -e "$expr"`
                ;;
        esac
        # The OS release
@@ -240,76 +254,82 @@ case 
"$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in
        # thus, need a distinct triplet. However, they do not need
        # kernel version information, so it can be replaced with a
        # suitable tag, in the style of linux-gnu.
-       case "$UNAME_VERSION" in
+       case $UNAME_VERSION in
            Debian*)
                release='-gnu'
                ;;
            *)
-               release=$(echo "$UNAME_RELEASE" | sed -e 's/[-_].*//' | cut -d. 
-f1,2)
+               release=`echo "$UNAME_RELEASE" | sed -e 's/[-_].*//' | cut -d. 
-f1,2`
                ;;
        esac
        # Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
        # contains redundant information, the shorter form:
        # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
-       echo "$machine-${os}${release}${abi-}"
-       exit ;;
+       GUESS=$machine-${os}${release}${abi-}
+       ;;
     *:Bitrig:*:*)
-       UNAME_MACHINE_ARCH=$(arch | sed 's/Bitrig.//')
-       echo "$UNAME_MACHINE_ARCH"-unknown-bitrig"$UNAME_RELEASE"
-       exit ;;
+       UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'`
+       GUESS=$UNAME_MACHINE_ARCH-unknown-bitrig$UNAME_RELEASE
+       ;;
     *:OpenBSD:*:*)
-       UNAME_MACHINE_ARCH=$(arch | sed 's/OpenBSD.//')
-       echo "$UNAME_MACHINE_ARCH"-unknown-openbsd"$UNAME_RELEASE"
-       exit ;;
+       UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
+       GUESS=$UNAME_MACHINE_ARCH-unknown-openbsd$UNAME_RELEASE
+       ;;
+    *:SecBSD:*:*)
+       UNAME_MACHINE_ARCH=`arch | sed 's/SecBSD.//'`
+       GUESS=$UNAME_MACHINE_ARCH-unknown-secbsd$UNAME_RELEASE
+       ;;
     *:LibertyBSD:*:*)
-       UNAME_MACHINE_ARCH=$(arch | sed 's/^.*BSD\.//')
-       echo "$UNAME_MACHINE_ARCH"-unknown-libertybsd"$UNAME_RELEASE"
-       exit ;;
+       UNAME_MACHINE_ARCH=`arch | sed 's/^.*BSD\.//'`
+       GUESS=$UNAME_MACHINE_ARCH-unknown-libertybsd$UNAME_RELEASE
+       ;;
     *:MidnightBSD:*:*)
-       echo "$UNAME_MACHINE"-unknown-midnightbsd"$UNAME_RELEASE"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-midnightbsd$UNAME_RELEASE
+       ;;
     *:ekkoBSD:*:*)
-       echo "$UNAME_MACHINE"-unknown-ekkobsd"$UNAME_RELEASE"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-ekkobsd$UNAME_RELEASE
+       ;;
     *:SolidBSD:*:*)
-       echo "$UNAME_MACHINE"-unknown-solidbsd"$UNAME_RELEASE"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-solidbsd$UNAME_RELEASE
+       ;;
     *:OS108:*:*)
-       echo "$UNAME_MACHINE"-unknown-os108_"$UNAME_RELEASE"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-os108_$UNAME_RELEASE
+       ;;
     macppc:MirBSD:*:*)
-       echo powerpc-unknown-mirbsd"$UNAME_RELEASE"
-       exit ;;
+       GUESS=powerpc-unknown-mirbsd$UNAME_RELEASE
+       ;;
     *:MirBSD:*:*)
-       echo "$UNAME_MACHINE"-unknown-mirbsd"$UNAME_RELEASE"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-mirbsd$UNAME_RELEASE
+       ;;
     *:Sortix:*:*)
-       echo "$UNAME_MACHINE"-unknown-sortix
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-sortix
+       ;;
     *:Twizzler:*:*)
-       echo "$UNAME_MACHINE"-unknown-twizzler
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-twizzler
+       ;;
     *:Redox:*:*)
-       echo "$UNAME_MACHINE"-unknown-redox
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-redox
+       ;;
     mips:OSF1:*.*)
-       echo mips-dec-osf1
-       exit ;;
+       GUESS=mips-dec-osf1
+       ;;
     alpha:OSF1:*:*)
+       # Reset EXIT trap before exiting to avoid spurious non-zero exit code.
+       trap '' 0
        case $UNAME_RELEASE in
        *4.0)
-               UNAME_RELEASE=$(/usr/sbin/sizer -v | awk '{print $3}')
+               UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
                ;;
        *5.*)
-               UNAME_RELEASE=$(/usr/sbin/sizer -v | awk '{print $4}')
+               UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
                ;;
        esac
        # According to Compaq, /usr/sbin/psrinfo has been available on
        # OSF/1 and Tru64 systems produced since 1995.  I hope that
        # covers most systems running today.  This code pipes the CPU
        # types through head -n 1, so we only detect the type of CPU 0.
-       ALPHA_CPU_TYPE=$(/usr/sbin/psrinfo -v | sed -n -e 's/^  The alpha 
\(.*\) processor.*$/\1/p' | head -n 1)
-       case "$ALPHA_CPU_TYPE" in
+       ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^  The alpha \(.*\) 
processor.*$/\1/p' | head -n 1`
+       case $ALPHA_CPU_TYPE in
            "EV4 (21064)")
                UNAME_MACHINE=alpha ;;
            "EV4.5 (21064)")
@@ -346,68 +366,69 @@ case 
"$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in
        # A Tn.n version is a released field test version.
        # A Xn.n version is an unreleased experimental baselevel.
        # 1.2 uses "1.2" for uname -r.
-       echo "$UNAME_MACHINE"-dec-osf"$(echo "$UNAME_RELEASE" | sed -e 
's/^[PVTX]//' | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz)"
-       # Reset EXIT trap before exiting to avoid spurious non-zero exit code.
-       exitcode=$?
-       trap '' 0
-       exit $exitcode ;;
+       OSF_REL=`echo "$UNAME_RELEASE" | sed -e 's/^[PVTX]//' | tr 
ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`
+       GUESS=$UNAME_MACHINE-dec-osf$OSF_REL
+       ;;
     Amiga*:UNIX_System_V:4.0:*)
-       echo m68k-unknown-sysv4
-       exit ;;
+       GUESS=m68k-unknown-sysv4
+       ;;
     *:[Aa]miga[Oo][Ss]:*:*)
-       echo "$UNAME_MACHINE"-unknown-amigaos
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-amigaos
+       ;;
     *:[Mm]orph[Oo][Ss]:*:*)
-       echo "$UNAME_MACHINE"-unknown-morphos
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-morphos
+       ;;
     *:OS/390:*:*)
-       echo i370-ibm-openedition
-       exit ;;
+       GUESS=i370-ibm-openedition
+       ;;
     *:z/VM:*:*)
-       echo s390-ibm-zvmoe
-       exit ;;
+       GUESS=s390-ibm-zvmoe
+       ;;
     *:OS400:*:*)
-       echo powerpc-ibm-os400
-       exit ;;
+       GUESS=powerpc-ibm-os400
+       ;;
     arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
-       echo arm-acorn-riscix"$UNAME_RELEASE"
-       exit ;;
+       GUESS=arm-acorn-riscix$UNAME_RELEASE
+       ;;
     arm*:riscos:*:*|arm*:RISCOS:*:*)
-       echo arm-unknown-riscos
-       exit ;;
+       GUESS=arm-unknown-riscos
+       ;;
     SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
-       echo hppa1.1-hitachi-hiuxmpp
-       exit ;;
+       GUESS=hppa1.1-hitachi-hiuxmpp
+       ;;
     Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
        # akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
-       if test "$( (/bin/universe) 2>/dev/null)" = att ; then
-               echo pyramid-pyramid-sysv3
-       else
-               echo pyramid-pyramid-bsd
-       fi
-       exit ;;
+       case `(/bin/universe) 2>/dev/null` in
+           att) GUESS=pyramid-pyramid-sysv3 ;;
+           *)   GUESS=pyramid-pyramid-bsd   ;;
+       esac
+       ;;
     NILE*:*:*:dcosx)
-       echo pyramid-pyramid-svr4
-       exit ;;
+       GUESS=pyramid-pyramid-svr4
+       ;;
     DRS?6000:unix:4.0:6*)
-       echo sparc-icl-nx6
-       exit ;;
+       GUESS=sparc-icl-nx6
+       ;;
     DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*)
-       case $(/usr/bin/uname -p) in
-           sparc) echo sparc-icl-nx7; exit ;;
-       esac ;;
+       case `/usr/bin/uname -p` in
+           sparc) GUESS=sparc-icl-nx7 ;;
+       esac
+       ;;
     s390x:SunOS:*:*)
-       echo "$UNAME_MACHINE"-ibm-solaris2"$(echo "$UNAME_RELEASE" | sed -e 
's/[^.]*//')"
-       exit ;;
+       SUN_REL=`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`
+       GUESS=$UNAME_MACHINE-ibm-solaris2$SUN_REL
+       ;;
     sun4H:SunOS:5.*:*)
-       echo sparc-hal-solaris2"$(echo "$UNAME_RELEASE"|sed -e 's/[^.]*//')"
-       exit ;;
+       SUN_REL=`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`
+       GUESS=sparc-hal-solaris2$SUN_REL
+       ;;
     sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
-       echo sparc-sun-solaris2"$(echo "$UNAME_RELEASE" | sed -e 's/[^.]*//')"
-       exit ;;
+       SUN_REL=`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`
+       GUESS=sparc-sun-solaris2$SUN_REL
+       ;;
     i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*)
-       echo i386-pc-auroraux"$UNAME_RELEASE"
-       exit ;;
+       GUESS=i386-pc-auroraux$UNAME_RELEASE
+       ;;
     i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
        set_cc_for_build
        SUN_ARCH=i386
@@ -416,47 +437,50 @@ case 
"$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in
        # This test works for both compilers.
        if test "$CC_FOR_BUILD" != no_compiler_found; then
            if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
-               (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+               (CCOPTS="" $CC_FOR_BUILD -m64 -E - 2>/dev/null) | \
                grep IS_64BIT_ARCH >/dev/null
            then
                SUN_ARCH=x86_64
            fi
        fi
-       echo "$SUN_ARCH"-pc-solaris2"$(echo "$UNAME_RELEASE"|sed -e 
's/[^.]*//')"
-       exit ;;
+       SUN_REL=`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`
+       GUESS=$SUN_ARCH-pc-solaris2$SUN_REL
+       ;;
     sun4*:SunOS:6*:*)
        # According to config.sub, this is the proper way to canonicalize
        # SunOS6.  Hard to guess exactly what SunOS6 will be like, but
        # it's likely to be more like Solaris than SunOS4.
-       echo sparc-sun-solaris3"$(echo "$UNAME_RELEASE"|sed -e 's/[^.]*//')"
-       exit ;;
+       SUN_REL=`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`
+       GUESS=sparc-sun-solaris3$SUN_REL
+       ;;
     sun4*:SunOS:*:*)
-       case "$(/usr/bin/arch -k)" in
+       case `/usr/bin/arch -k` in
            Series*|S4*)
-               UNAME_RELEASE=$(uname -v)
+               UNAME_RELEASE=`uname -v`
                ;;
        esac
        # Japanese Language versions have a version number like `4.1.3-JL'.
-       echo sparc-sun-sunos"$(echo "$UNAME_RELEASE"|sed -e 's/-/_/')"
-       exit ;;
+       SUN_REL=`echo "$UNAME_RELEASE" | sed -e 's/-/_/'`
+       GUESS=sparc-sun-sunos$SUN_REL
+       ;;
     sun3*:SunOS:*:*)
-       echo m68k-sun-sunos"$UNAME_RELEASE"
-       exit ;;
+       GUESS=m68k-sun-sunos$UNAME_RELEASE
+       ;;
     sun*:*:4.2BSD:*)
-       UNAME_RELEASE=$( (sed 1q /etc/motd | awk '{print substr($5,1,3)}') 
2>/dev/null)
+       UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 
2>/dev/null`
        test "x$UNAME_RELEASE" = x && UNAME_RELEASE=3
-       case "$(/bin/arch)" in
+       case `/bin/arch` in
            sun3)
-               echo m68k-sun-sunos"$UNAME_RELEASE"
+               GUESS=m68k-sun-sunos$UNAME_RELEASE
                ;;
            sun4)
-               echo sparc-sun-sunos"$UNAME_RELEASE"
+               GUESS=sparc-sun-sunos$UNAME_RELEASE
                ;;
        esac
-       exit ;;
+       ;;
     aushp:SunOS:*:*)
-       echo sparc-auspex-sunos"$UNAME_RELEASE"
-       exit ;;
+       GUESS=sparc-auspex-sunos$UNAME_RELEASE
+       ;;
     # The situation for MiNT is a little confusing.  The machine name
     # can be virtually everything (everything which is not
     # "atarist" or "atariste" at least should have a processor
@@ -466,41 +490,41 @@ case 
"$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in
     # MiNT.  But MiNT is downward compatible to TOS, so this should
     # be no problem.
     atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
-       echo m68k-atari-mint"$UNAME_RELEASE"
-       exit ;;
+       GUESS=m68k-atari-mint$UNAME_RELEASE
+       ;;
     atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
-       echo m68k-atari-mint"$UNAME_RELEASE"
-       exit ;;
+       GUESS=m68k-atari-mint$UNAME_RELEASE
+       ;;
     *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
-       echo m68k-atari-mint"$UNAME_RELEASE"
-       exit ;;
+       GUESS=m68k-atari-mint$UNAME_RELEASE
+       ;;
     milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
-       echo m68k-milan-mint"$UNAME_RELEASE"
-       exit ;;
+       GUESS=m68k-milan-mint$UNAME_RELEASE
+       ;;
     hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
-       echo m68k-hades-mint"$UNAME_RELEASE"
-       exit ;;
+       GUESS=m68k-hades-mint$UNAME_RELEASE
+       ;;
     *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
-       echo m68k-unknown-mint"$UNAME_RELEASE"
-       exit ;;
+       GUESS=m68k-unknown-mint$UNAME_RELEASE
+       ;;
     m68k:machten:*:*)
-       echo m68k-apple-machten"$UNAME_RELEASE"
-       exit ;;
+       GUESS=m68k-apple-machten$UNAME_RELEASE
+       ;;
     powerpc:machten:*:*)
-       echo powerpc-apple-machten"$UNAME_RELEASE"
-       exit ;;
+       GUESS=powerpc-apple-machten$UNAME_RELEASE
+       ;;
     RISC*:Mach:*:*)
-       echo mips-dec-mach_bsd4.3
-       exit ;;
+       GUESS=mips-dec-mach_bsd4.3
+       ;;
     RISC*:ULTRIX:*:*)
-       echo mips-dec-ultrix"$UNAME_RELEASE"
-       exit ;;
+       GUESS=mips-dec-ultrix$UNAME_RELEASE
+       ;;
     VAX*:ULTRIX*:*:*)
-       echo vax-dec-ultrix"$UNAME_RELEASE"
-       exit ;;
+       GUESS=vax-dec-ultrix$UNAME_RELEASE
+       ;;
     2020:CLIX:*:* | 2430:CLIX:*:*)
-       echo clipper-intergraph-clix"$UNAME_RELEASE"
-       exit ;;
+       GUESS=clipper-intergraph-clix$UNAME_RELEASE
+       ;;
     mips:*:*:UMIPS | mips:*:*:RISCos)
        set_cc_for_build
        sed 's/^        //' << EOF > "$dummy.c"
@@ -525,78 +549,79 @@ case 
"$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in
        }
 EOF
        $CC_FOR_BUILD -o "$dummy" "$dummy.c" &&
-         dummyarg=$(echo "$UNAME_RELEASE" | sed -n 's/\([0-9]*\).*/\1/p') &&
-         SYSTEM_NAME=$("$dummy" "$dummyarg") &&
+         dummyarg=`echo "$UNAME_RELEASE" | sed -n 's/\([0-9]*\).*/\1/p'` &&
+         SYSTEM_NAME=`"$dummy" "$dummyarg"` &&
            { echo "$SYSTEM_NAME"; exit; }
-       echo mips-mips-riscos"$UNAME_RELEASE"
-       exit ;;
+       GUESS=mips-mips-riscos$UNAME_RELEASE
+       ;;
     Motorola:PowerMAX_OS:*:*)
-       echo powerpc-motorola-powermax
-       exit ;;
+       GUESS=powerpc-motorola-powermax
+       ;;
     Motorola:*:4.3:PL8-*)
-       echo powerpc-harris-powermax
-       exit ;;
+       GUESS=powerpc-harris-powermax
+       ;;
     Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*)
-       echo powerpc-harris-powermax
-       exit ;;
+       GUESS=powerpc-harris-powermax
+       ;;
     Night_Hawk:Power_UNIX:*:*)
-       echo powerpc-harris-powerunix
-       exit ;;
+       GUESS=powerpc-harris-powerunix
+       ;;
     m88k:CX/UX:7*:*)
-       echo m88k-harris-cxux7
-       exit ;;
+       GUESS=m88k-harris-cxux7
+       ;;
     m88k:*:4*:R4*)
-       echo m88k-motorola-sysv4
-       exit ;;
+       GUESS=m88k-motorola-sysv4
+       ;;
     m88k:*:3*:R3*)
-       echo m88k-motorola-sysv3
-       exit ;;
+       GUESS=m88k-motorola-sysv3
+       ;;
     AViiON:dgux:*:*)
        # DG/UX returns AViiON for all architectures
-       UNAME_PROCESSOR=$(/usr/bin/uname -p)
+       UNAME_PROCESSOR=`/usr/bin/uname -p`
        if test "$UNAME_PROCESSOR" = mc88100 || test "$UNAME_PROCESSOR" = 
mc88110
        then
            if test "$TARGET_BINARY_INTERFACE"x = m88kdguxelfx || \
               test "$TARGET_BINARY_INTERFACE"x = x
            then
-               echo m88k-dg-dgux"$UNAME_RELEASE"
+               GUESS=m88k-dg-dgux$UNAME_RELEASE
            else
-               echo m88k-dg-dguxbcs"$UNAME_RELEASE"
+               GUESS=m88k-dg-dguxbcs$UNAME_RELEASE
            fi
        else
-           echo i586-dg-dgux"$UNAME_RELEASE"
+           GUESS=i586-dg-dgux$UNAME_RELEASE
        fi
-       exit ;;
+       ;;
     M88*:DolphinOS:*:*)        # DolphinOS (SVR3)
-       echo m88k-dolphin-sysv3
-       exit ;;
+       GUESS=m88k-dolphin-sysv3
+       ;;
     M88*:*:R3*:*)
        # Delta 88k system running SVR3
-       echo m88k-motorola-sysv3
-       exit ;;
+       GUESS=m88k-motorola-sysv3
+       ;;
     XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
-       echo m88k-tektronix-sysv3
-       exit ;;
+       GUESS=m88k-tektronix-sysv3
+       ;;
     Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
-       echo m68k-tektronix-bsd
-       exit ;;
+       GUESS=m68k-tektronix-bsd
+       ;;
     *:IRIX*:*:*)
-       echo mips-sgi-irix"$(echo "$UNAME_RELEASE"|sed -e 's/-/_/g')"
-       exit ;;
+       IRIX_REL=`echo "$UNAME_RELEASE" | sed -e 's/-/_/g'`
+       GUESS=mips-sgi-irix$IRIX_REL
+       ;;
     ????????:AIX?:[12].1:2)   # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
-       echo romp-ibm-aix     # uname -m gives an 8 hex-code CPU id
-       exit ;;               # Note that: echo "'$(uname -s)'" gives 'AIX '
+       GUESS=romp-ibm-aix    # uname -m gives an 8 hex-code CPU id
+       ;;                    # Note that: echo "'`uname -s`'" gives 'AIX '
     i*86:AIX:*:*)
-       echo i386-ibm-aix
-       exit ;;
+       GUESS=i386-ibm-aix
+       ;;
     ia64:AIX:*:*)
        if test -x /usr/bin/oslevel ; then
-               IBM_REV=$(/usr/bin/oslevel)
+               IBM_REV=`/usr/bin/oslevel`
        else
-               IBM_REV="$UNAME_VERSION.$UNAME_RELEASE"
+               IBM_REV=$UNAME_VERSION.$UNAME_RELEASE
        fi
-       echo "$UNAME_MACHINE"-ibm-aix"$IBM_REV"
-       exit ;;
+       GUESS=$UNAME_MACHINE-ibm-aix$IBM_REV
+       ;;
     *:AIX:2:3)
        if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
                set_cc_for_build
@@ -611,68 +636,68 @@ EOF
                        exit(0);
                        }
 EOF
-               if $CC_FOR_BUILD -o "$dummy" "$dummy.c" && 
SYSTEM_NAME=$("$dummy")
+               if $CC_FOR_BUILD -o "$dummy" "$dummy.c" && 
SYSTEM_NAME=`"$dummy"`
                then
-                       echo "$SYSTEM_NAME"
+                       GUESS=$SYSTEM_NAME
                else
-                       echo rs6000-ibm-aix3.2.5
+                       GUESS=rs6000-ibm-aix3.2.5
                fi
        elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
-               echo rs6000-ibm-aix3.2.4
+               GUESS=rs6000-ibm-aix3.2.4
        else
-               echo rs6000-ibm-aix3.2
+               GUESS=rs6000-ibm-aix3.2
        fi
-       exit ;;
+       ;;
     *:AIX:*:[4567])
-       IBM_CPU_ID=$(/usr/sbin/lsdev -C -c processor -S available | sed 1q | 
awk '{ print $1 }')
+       IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk 
'{ print $1 }'`
        if /usr/sbin/lsattr -El "$IBM_CPU_ID" | grep ' POWER' >/dev/null 2>&1; 
then
                IBM_ARCH=rs6000
        else
                IBM_ARCH=powerpc
        fi
        if test -x /usr/bin/lslpp ; then
-               IBM_REV=$(/usr/bin/lslpp -Lqc bos.rte.libc |
-                          awk -F: '{ print $3 }' | sed s/[0-9]*$/0/)
+               IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc | \
+                          awk -F: '{ print $3 }' | sed s/[0-9]*$/0/`
        else
-               IBM_REV="$UNAME_VERSION.$UNAME_RELEASE"
+               IBM_REV=$UNAME_VERSION.$UNAME_RELEASE
        fi
-       echo "$IBM_ARCH"-ibm-aix"$IBM_REV"
-       exit ;;
+       GUESS=$IBM_ARCH-ibm-aix$IBM_REV
+       ;;
     *:AIX:*:*)
-       echo rs6000-ibm-aix
-       exit ;;
+       GUESS=rs6000-ibm-aix
+       ;;
     ibmrt:4.4BSD:*|romp-ibm:4.4BSD:*)
-       echo romp-ibm-bsd4.4
-       exit ;;
+       GUESS=romp-ibm-bsd4.4
+       ;;
     ibmrt:*BSD:*|romp-ibm:BSD:*)            # covers RT/PC BSD and
-       echo romp-ibm-bsd"$UNAME_RELEASE"   # 4.3 with uname added to
-       exit ;;                             # report: romp-ibm BSD 4.3
+       GUESS=romp-ibm-bsd$UNAME_RELEASE    # 4.3 with uname added to
+       ;;                                  # report: romp-ibm BSD 4.3
     *:BOSX:*:*)
-       echo rs6000-bull-bosx
-       exit ;;
+       GUESS=rs6000-bull-bosx
+       ;;
     DPX/2?00:B.O.S.:*:*)
-       echo m68k-bull-sysv3
-       exit ;;
+       GUESS=m68k-bull-sysv3
+       ;;
     9000/[34]??:4.3bsd:1.*:*)
-       echo m68k-hp-bsd
-       exit ;;
+       GUESS=m68k-hp-bsd
+       ;;
     hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
-       echo m68k-hp-bsd4.4
-       exit ;;
+       GUESS=m68k-hp-bsd4.4
+       ;;
     9000/[34678]??:HP-UX:*:*)
-       HPUX_REV=$(echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//')
-       case "$UNAME_MACHINE" in
+       HPUX_REV=`echo "$UNAME_RELEASE" | sed -e 's/[^.]*.[0B]*//'`
+       case $UNAME_MACHINE in
            9000/31?)            HP_ARCH=m68000 ;;
            9000/[34]??)         HP_ARCH=m68k ;;
            9000/[678][0-9][0-9])
                if test -x /usr/bin/getconf; then
-                   sc_cpu_version=$(/usr/bin/getconf SC_CPU_VERSION 
2>/dev/null)
-                   sc_kernel_bits=$(/usr/bin/getconf SC_KERNEL_BITS 
2>/dev/null)
-                   case "$sc_cpu_version" in
+                   sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
+                   sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
+                   case $sc_cpu_version in
                      523) HP_ARCH=hppa1.0 ;; # CPU_PA_RISC1_0
                      528) HP_ARCH=hppa1.1 ;; # CPU_PA_RISC1_1
                      532)                      # CPU_PA_RISC2_0
-                       case "$sc_kernel_bits" in
+                       case $sc_kernel_bits in
                          32) HP_ARCH=hppa2.0n ;;
                          64) HP_ARCH=hppa2.0w ;;
                          '') HP_ARCH=hppa2.0 ;;   # HP-UX 10.20
@@ -714,7 +739,7 @@ EOF
                    exit (0);
                }
 EOF
-                   (CCOPTS="" $CC_FOR_BUILD -o "$dummy" "$dummy.c" 
2>/dev/null) && HP_ARCH=$("$dummy")
+                   (CCOPTS="" $CC_FOR_BUILD -o "$dummy" "$dummy.c" 
2>/dev/null) && HP_ARCH=`"$dummy"`
                    test -z "$HP_ARCH" && HP_ARCH=hppa
                fi ;;
        esac
@@ -739,12 +764,12 @@ EOF
                HP_ARCH=hppa64
            fi
        fi
-       echo "$HP_ARCH"-hp-hpux"$HPUX_REV"
-       exit ;;
+       GUESS=$HP_ARCH-hp-hpux$HPUX_REV
+       ;;
     ia64:HP-UX:*:*)
-       HPUX_REV=$(echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//')
-       echo ia64-hp-hpux"$HPUX_REV"
-       exit ;;
+       HPUX_REV=`echo "$UNAME_RELEASE" | sed -e 's/[^.]*.[0B]*//'`
+       GUESS=ia64-hp-hpux$HPUX_REV
+       ;;
     3050*:HI-UX:*:*)
        set_cc_for_build
        sed 's/^        //' << EOF > "$dummy.c"
@@ -772,38 +797,38 @@ EOF
          exit (0);
        }
 EOF
-       $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=$("$dummy") &&
+       $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"` &&
                { echo "$SYSTEM_NAME"; exit; }
-       echo unknown-hitachi-hiuxwe2
-       exit ;;
+       GUESS=unknown-hitachi-hiuxwe2
+       ;;
     9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:*)
-       echo hppa1.1-hp-bsd
-       exit ;;
+       GUESS=hppa1.1-hp-bsd
+       ;;
     9000/8??:4.3bsd:*:*)
-       echo hppa1.0-hp-bsd
-       exit ;;
+       GUESS=hppa1.0-hp-bsd
+       ;;
     *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
-       echo hppa1.0-hp-mpeix
-       exit ;;
+       GUESS=hppa1.0-hp-mpeix
+       ;;
     hp7??:OSF1:*:* | hp8?[79]:OSF1:*:*)
-       echo hppa1.1-hp-osf
-       exit ;;
+       GUESS=hppa1.1-hp-osf
+       ;;
     hp8??:OSF1:*:*)
-       echo hppa1.0-hp-osf
-       exit ;;
+       GUESS=hppa1.0-hp-osf
+       ;;
     i*86:OSF1:*:*)
        if test -x /usr/sbin/sysversion ; then
-           echo "$UNAME_MACHINE"-unknown-osf1mk
+           GUESS=$UNAME_MACHINE-unknown-osf1mk
        else
-           echo "$UNAME_MACHINE"-unknown-osf1
+           GUESS=$UNAME_MACHINE-unknown-osf1
        fi
-       exit ;;
+       ;;
     parisc*:Lites*:*:*)
-       echo hppa1.1-hp-lites
-       exit ;;
+       GUESS=hppa1.1-hp-lites
+       ;;
     C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
-       echo c1-convex-bsd
-       exit ;;
+       GUESS=c1-convex-bsd
+       ;;
     C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
        if getsysinfo -f scalar_acc
        then echo c32-convex-bsd
@@ -811,17 +836,18 @@ EOF
        fi
        exit ;;
     C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
-       echo c34-convex-bsd
-       exit ;;
+       GUESS=c34-convex-bsd
+       ;;
     C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
-       echo c38-convex-bsd
-       exit ;;
+       GUESS=c38-convex-bsd
+       ;;
     C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
-       echo c4-convex-bsd
-       exit ;;
+       GUESS=c4-convex-bsd
+       ;;
     CRAY*Y-MP:*:*:*)
-       echo ymp-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
-       exit ;;
+       CRAY_REL=`echo "$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'`
+       GUESS=ymp-cray-unicos$CRAY_REL
+       ;;
     CRAY*[A-Z]90:*:*:*)
        echo "$UNAME_MACHINE"-cray-unicos"$UNAME_RELEASE" \
        | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
@@ -829,114 +855,129 @@ EOF
              -e 's/\.[^.]*$/.X/'
        exit ;;
     CRAY*TS:*:*:*)
-       echo t90-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
-       exit ;;
+       CRAY_REL=`echo "$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'`
+       GUESS=t90-cray-unicos$CRAY_REL
+       ;;
     CRAY*T3E:*:*:*)
-       echo alphaev5-cray-unicosmk"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
-       exit ;;
+       CRAY_REL=`echo "$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'`
+       GUESS=alphaev5-cray-unicosmk$CRAY_REL
+       ;;
     CRAY*SV1:*:*:*)
-       echo sv1-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
-       exit ;;
+       CRAY_REL=`echo "$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'`
+       GUESS=sv1-cray-unicos$CRAY_REL
+       ;;
     *:UNICOS/mp:*:*)
-       echo craynv-cray-unicosmp"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
-       exit ;;
+       CRAY_REL=`echo "$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'`
+       GUESS=craynv-cray-unicosmp$CRAY_REL
+       ;;
     F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
-       FUJITSU_PROC=$(uname -m | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ 
abcdefghijklmnopqrstuvwxyz)
-       FUJITSU_SYS=$(uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ 
abcdefghijklmnopqrstuvwxyz | sed -e 's/\///')
-       FUJITSU_REL=$(echo "$UNAME_RELEASE" | sed -e 's/ /_/')
-       echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
-       exit ;;
+       FUJITSU_PROC=`uname -m | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ 
abcdefghijklmnopqrstuvwxyz`
+       FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ 
abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'`
+       FUJITSU_REL=`echo "$UNAME_RELEASE" | sed -e 's/ /_/'`
+       GUESS=${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}
+       ;;
     5000:UNIX_System_V:4.*:*)
-       FUJITSU_SYS=$(uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ 
abcdefghijklmnopqrstuvwxyz | sed -e 's/\///')
-       FUJITSU_REL=$(echo "$UNAME_RELEASE" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ 
abcdefghijklmnopqrstuvwxyz | sed -e 's/ /_/')
-       echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
-       exit ;;
+       FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ 
abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'`
+       FUJITSU_REL=`echo "$UNAME_RELEASE" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ 
abcdefghijklmnopqrstuvwxyz | sed -e 's/ /_/'`
+       GUESS=sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}
+       ;;
     i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
-       echo "$UNAME_MACHINE"-pc-bsdi"$UNAME_RELEASE"
-       exit ;;
+       GUESS=$UNAME_MACHINE-pc-bsdi$UNAME_RELEASE
+       ;;
     sparc*:BSD/OS:*:*)
-       echo sparc-unknown-bsdi"$UNAME_RELEASE"
-       exit ;;
+       GUESS=sparc-unknown-bsdi$UNAME_RELEASE
+       ;;
     *:BSD/OS:*:*)
-       echo "$UNAME_MACHINE"-unknown-bsdi"$UNAME_RELEASE"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-bsdi$UNAME_RELEASE
+       ;;
     arm:FreeBSD:*:*)
-       UNAME_PROCESSOR=$(uname -p)
+       UNAME_PROCESSOR=`uname -p`
        set_cc_for_build
        if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
            | grep -q __ARM_PCS_VFP
        then
-           echo "${UNAME_PROCESSOR}"-unknown-freebsd"$(echo 
${UNAME_RELEASE}|sed -e 's/[-(].*//')"-gnueabi
+           FREEBSD_REL=`echo "$UNAME_RELEASE" | sed -e 's/[-(].*//'`
+           GUESS=$UNAME_PROCESSOR-unknown-freebsd$FREEBSD_REL-gnueabi
        else
-           echo "${UNAME_PROCESSOR}"-unknown-freebsd"$(echo 
${UNAME_RELEASE}|sed -e 's/[-(].*//')"-gnueabihf
+           FREEBSD_REL=`echo "$UNAME_RELEASE" | sed -e 's/[-(].*//'`
+           GUESS=$UNAME_PROCESSOR-unknown-freebsd$FREEBSD_REL-gnueabihf
        fi
-       exit ;;
+       ;;
     *:FreeBSD:*:*)
-       UNAME_PROCESSOR=$(/usr/bin/uname -p)
-       case "$UNAME_PROCESSOR" in
+       UNAME_PROCESSOR=`/usr/bin/uname -p`
+       case $UNAME_PROCESSOR in
            amd64)
                UNAME_PROCESSOR=x86_64 ;;
            i386)
                UNAME_PROCESSOR=i586 ;;
        esac
-       echo "$UNAME_PROCESSOR"-unknown-freebsd"$(echo "$UNAME_RELEASE"|sed -e 
's/[-(].*//')"
-       exit ;;
+       FREEBSD_REL=`echo "$UNAME_RELEASE" | sed -e 's/[-(].*//'`
+       GUESS=$UNAME_PROCESSOR-unknown-freebsd$FREEBSD_REL
+       ;;
     i*:CYGWIN*:*)
-       echo "$UNAME_MACHINE"-pc-cygwin
-       exit ;;
+       GUESS=$UNAME_MACHINE-pc-cygwin
+       ;;
     *:MINGW64*:*)
-       echo "$UNAME_MACHINE"-pc-mingw64
-       exit ;;
+       GUESS=$UNAME_MACHINE-pc-mingw64
+       ;;
     *:MINGW*:*)
-       echo "$UNAME_MACHINE"-pc-mingw32
-       exit ;;
+       GUESS=$UNAME_MACHINE-pc-mingw32
+       ;;
     *:MSYS*:*)
-       echo "$UNAME_MACHINE"-pc-msys
-       exit ;;
+       GUESS=$UNAME_MACHINE-pc-msys
+       ;;
     i*:PW*:*)
-       echo "$UNAME_MACHINE"-pc-pw32
-       exit ;;
+       GUESS=$UNAME_MACHINE-pc-pw32
+       ;;
+    *:SerenityOS:*:*)
+        GUESS=$UNAME_MACHINE-pc-serenity
+        ;;
     *:Interix*:*)
-       case "$UNAME_MACHINE" in
+       case $UNAME_MACHINE in
            x86)
-               echo i586-pc-interix"$UNAME_RELEASE"
-               exit ;;
+               GUESS=i586-pc-interix$UNAME_RELEASE
+               ;;
            authenticamd | genuineintel | EM64T)
-               echo x86_64-unknown-interix"$UNAME_RELEASE"
-               exit ;;
+               GUESS=x86_64-unknown-interix$UNAME_RELEASE
+               ;;
            IA64)
-               echo ia64-unknown-interix"$UNAME_RELEASE"
-               exit ;;
+               GUESS=ia64-unknown-interix$UNAME_RELEASE
+               ;;
        esac ;;
     i*:UWIN*:*)
-       echo "$UNAME_MACHINE"-pc-uwin
-       exit ;;
+       GUESS=$UNAME_MACHINE-pc-uwin
+       ;;
     amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
-       echo x86_64-pc-cygwin
-       exit ;;
+       GUESS=x86_64-pc-cygwin
+       ;;
     prep*:SunOS:5.*:*)
-       echo powerpcle-unknown-solaris2"$(echo "$UNAME_RELEASE"|sed -e 
's/[^.]*//')"
-       exit ;;
+       SUN_REL=`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`
+       GUESS=powerpcle-unknown-solaris2$SUN_REL
+       ;;
     *:GNU:*:*)
        # the GNU system
-       echo "$(echo "$UNAME_MACHINE"|sed -e 's,[-/].*$,,')-unknown-$LIBC$(echo 
"$UNAME_RELEASE"|sed -e 's,/.*$,,')"
-       exit ;;
+       GNU_ARCH=`echo "$UNAME_MACHINE" | sed -e 's,[-/].*$,,'`
+       GNU_REL=`echo "$UNAME_RELEASE" | sed -e 's,/.*$,,'`
+       GUESS=$GNU_ARCH-unknown-$LIBC$GNU_REL
+       ;;
     *:GNU/*:*:*)
        # other systems with GNU libc and userland
-       echo "$UNAME_MACHINE-unknown-$(echo "$UNAME_SYSTEM" | sed 's,^[^/]*/,,' 
| tr "[:upper:]" "[:lower:]")$(echo "$UNAME_RELEASE"|sed -e 's/[-(].*//')-$LIBC"
-       exit ;;
+       GNU_SYS=`echo "$UNAME_SYSTEM" | sed 's,^[^/]*/,,' | tr "[:upper:]" 
"[:lower:]"`
+       GNU_REL=`echo "$UNAME_RELEASE" | sed -e 's/[-(].*//'`
+       GUESS=$UNAME_MACHINE-unknown-$GNU_SYS$GNU_REL-$LIBC
+       ;;
     *:Minix:*:*)
-       echo "$UNAME_MACHINE"-unknown-minix
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-minix
+       ;;
     aarch64:Linux:*:*)
-       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+       ;;
     aarch64_be:Linux:*:*)
        UNAME_MACHINE=aarch64_be
-       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+       ;;
     alpha:Linux:*:*)
-       case $(sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' /proc/cpuinfo 
2>/dev/null) in
+       case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' /proc/cpuinfo 
2>/dev/null` in
          EV5)   UNAME_MACHINE=alphaev5 ;;
          EV56)  UNAME_MACHINE=alphaev56 ;;
          PCA56) UNAME_MACHINE=alphapca56 ;;
@@ -947,63 +988,63 @@ EOF
        esac
        objdump --private-headers /bin/sh | grep -q ld.so.1
        if test "$?" = 0 ; then LIBC=gnulibc1 ; fi
-       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
-       exit ;;
-    arc:Linux:*:* | arceb:Linux:*:*)
-       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+       ;;
+    arc:Linux:*:* | arceb:Linux:*:* | arc32:Linux:*:* | arc64:Linux:*:*)
+       GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+       ;;
     arm*:Linux:*:*)
        set_cc_for_build
        if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
            | grep -q __ARM_EABI__
        then
-           echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+           GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
        else
            if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
                | grep -q __ARM_PCS_VFP
            then
-               echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabi
+               GUESS=$UNAME_MACHINE-unknown-linux-${LIBC}eabi
            else
-               echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabihf
+               GUESS=$UNAME_MACHINE-unknown-linux-${LIBC}eabihf
            fi
        fi
-       exit ;;
+       ;;
     avr32*:Linux:*:*)
-       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+       ;;
     cris:Linux:*:*)
-       echo "$UNAME_MACHINE"-axis-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-axis-linux-$LIBC
+       ;;
     crisv32:Linux:*:*)
-       echo "$UNAME_MACHINE"-axis-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-axis-linux-$LIBC
+       ;;
     e2k:Linux:*:*)
-       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+       ;;
     frv:Linux:*:*)
-       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+       ;;
     hexagon:Linux:*:*)
-       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+       ;;
     i*86:Linux:*:*)
-       echo "$UNAME_MACHINE"-pc-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-pc-linux-$LIBC
+       ;;
     ia64:Linux:*:*)
-       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+       ;;
     k1om:Linux:*:*)
-       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+       ;;
     loongarch32:Linux:*:* | loongarch64:Linux:*:* | loongarchx32:Linux:*:*)
-       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+       ;;
     m32r*:Linux:*:*)
-       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+       ;;
     m68*:Linux:*:*)
-       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+       ;;
     mips:Linux:*:* | mips64:Linux:*:*)
        set_cc_for_build
        IS_GLIBC=0
@@ -1048,138 +1089,150 @@ EOF
        #endif
        #endif
 EOF
-       eval "$($CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep 
'^CPU\|^MIPS_ENDIAN\|^LIBCABI')"
+       cc_set_vars=`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep 
'^CPU\|^MIPS_ENDIAN\|^LIBCABI'`
+       eval "$cc_set_vars"
        test "x$CPU" != x && { echo 
"$CPU${MIPS_ENDIAN}-unknown-linux-$LIBCABI"; exit; }
        ;;
     mips64el:Linux:*:*)
-       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+       ;;
     openrisc*:Linux:*:*)
-       echo or1k-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=or1k-unknown-linux-$LIBC
+       ;;
     or32:Linux:*:* | or1k*:Linux:*:*)
-       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+       ;;
     padre:Linux:*:*)
-       echo sparc-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=sparc-unknown-linux-$LIBC
+       ;;
     parisc64:Linux:*:* | hppa64:Linux:*:*)
-       echo hppa64-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=hppa64-unknown-linux-$LIBC
+       ;;
     parisc:Linux:*:* | hppa:Linux:*:*)
        # Look for CPU level
-       case $(grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2) in
-         PA7*) echo hppa1.1-unknown-linux-"$LIBC" ;;
-         PA8*) echo hppa2.0-unknown-linux-"$LIBC" ;;
-         *)    echo hppa-unknown-linux-"$LIBC" ;;
+       case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
+         PA7*) GUESS=hppa1.1-unknown-linux-$LIBC ;;
+         PA8*) GUESS=hppa2.0-unknown-linux-$LIBC ;;
+         *)    GUESS=hppa-unknown-linux-$LIBC ;;
        esac
-       exit ;;
+       ;;
     ppc64:Linux:*:*)
-       echo powerpc64-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=powerpc64-unknown-linux-$LIBC
+       ;;
     ppc:Linux:*:*)
-       echo powerpc-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=powerpc-unknown-linux-$LIBC
+       ;;
     ppc64le:Linux:*:*)
-       echo powerpc64le-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=powerpc64le-unknown-linux-$LIBC
+       ;;
     ppcle:Linux:*:*)
-       echo powerpcle-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=powerpcle-unknown-linux-$LIBC
+       ;;
     riscv32:Linux:*:* | riscv32be:Linux:*:* | riscv64:Linux:*:* | 
riscv64be:Linux:*:*)
-       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+       ;;
     s390:Linux:*:* | s390x:Linux:*:*)
-       echo "$UNAME_MACHINE"-ibm-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-ibm-linux-$LIBC
+       ;;
     sh64*:Linux:*:*)
-       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+       ;;
     sh*:Linux:*:*)
-       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+       ;;
     sparc:Linux:*:* | sparc64:Linux:*:*)
-       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+       ;;
     tile*:Linux:*:*)
-       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+       ;;
     vax:Linux:*:*)
-       echo "$UNAME_MACHINE"-dec-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-dec-linux-$LIBC
+       ;;
     x86_64:Linux:*:*)
        set_cc_for_build
+       CPU=$UNAME_MACHINE
        LIBCABI=$LIBC
        if test "$CC_FOR_BUILD" != no_compiler_found; then
-           if (echo '#ifdef __ILP32__'; echo IS_X32; echo '#endif') | \
-               (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
-               grep IS_X32 >/dev/null
-           then
-               LIBCABI="$LIBC"x32
-           fi
+           ABI=64
+           sed 's/^        //' << EOF > "$dummy.c"
+           #ifdef __i386__
+           ABI=x86
+           #else
+           #ifdef __ILP32__
+           ABI=x32
+           #endif
+           #endif
+EOF
+           cc_set_abi=`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^ABI' | 
sed 's, ,,g'`
+           eval "$cc_set_abi"
+           case $ABI in
+               x86) CPU=i686 ;;
+               x32) LIBCABI=${LIBC}x32 ;;
+           esac
        fi
-       echo "$UNAME_MACHINE"-pc-linux-"$LIBCABI"
-       exit ;;
+       GUESS=$CPU-pc-linux-$LIBCABI
+       ;;
     xtensa*:Linux:*:*)
-       echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+       ;;
     i*86:DYNIX/ptx:4*:*)
        # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
        # earlier versions are messed up and put the nodename in both
        # sysname and nodename.
-       echo i386-sequent-sysv4
-       exit ;;
+       GUESS=i386-sequent-sysv4
+       ;;
     i*86:UNIX_SV:4.2MP:2.*)
        # Unixware is an offshoot of SVR4, but it has its own version
        # number series starting with 2...
        # I am not positive that other SVR4 systems won't match this,
        # I just have to hope.  -- rms.
        # Use sysv4.2uw... so that sysv4* matches it.
-       echo "$UNAME_MACHINE"-pc-sysv4.2uw"$UNAME_VERSION"
-       exit ;;
+       GUESS=$UNAME_MACHINE-pc-sysv4.2uw$UNAME_VERSION
+       ;;
     i*86:OS/2:*:*)
        # If we were able to find `uname', then EMX Unix compatibility
        # is probably installed.
-       echo "$UNAME_MACHINE"-pc-os2-emx
-       exit ;;
+       GUESS=$UNAME_MACHINE-pc-os2-emx
+       ;;
     i*86:XTS-300:*:STOP)
-       echo "$UNAME_MACHINE"-unknown-stop
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-stop
+       ;;
     i*86:atheos:*:*)
-       echo "$UNAME_MACHINE"-unknown-atheos
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-atheos
+       ;;
     i*86:syllable:*:*)
-       echo "$UNAME_MACHINE"-pc-syllable
-       exit ;;
+       GUESS=$UNAME_MACHINE-pc-syllable
+       ;;
     i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*)
-       echo i386-unknown-lynxos"$UNAME_RELEASE"
-       exit ;;
+       GUESS=i386-unknown-lynxos$UNAME_RELEASE
+       ;;
     i*86:*DOS:*:*)
-       echo "$UNAME_MACHINE"-pc-msdosdjgpp
-       exit ;;
+       GUESS=$UNAME_MACHINE-pc-msdosdjgpp
+       ;;
     i*86:*:4.*:*)
-       UNAME_REL=$(echo "$UNAME_RELEASE" | sed 's/\/MP$//')
+       UNAME_REL=`echo "$UNAME_RELEASE" | sed 's/\/MP$//'`
        if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
-               echo "$UNAME_MACHINE"-univel-sysv"$UNAME_REL"
+               GUESS=$UNAME_MACHINE-univel-sysv$UNAME_REL
        else
-               echo "$UNAME_MACHINE"-pc-sysv"$UNAME_REL"
+               GUESS=$UNAME_MACHINE-pc-sysv$UNAME_REL
        fi
-       exit ;;
+       ;;
     i*86:*:5:[678]*)
        # UnixWare 7.x, OpenUNIX and OpenServer 6.
-       case $(/bin/uname -X | grep "^Machine") in
+       case `/bin/uname -X | grep "^Machine"` in
            *486*)           UNAME_MACHINE=i486 ;;
            *Pentium)        UNAME_MACHINE=i586 ;;
            *Pent*|*Celeron) UNAME_MACHINE=i686 ;;
        esac
-       echo 
"$UNAME_MACHINE-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION}"
-       exit ;;
+       
GUESS=$UNAME_MACHINE-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION}
+       ;;
     i*86:*:3.2:*)
        if test -f /usr/options/cb.name; then
-               UNAME_REL=$(sed -n 's/.*Version //p' </usr/options/cb.name)
-               echo "$UNAME_MACHINE"-pc-isc"$UNAME_REL"
+               UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
+               GUESS=$UNAME_MACHINE-pc-isc$UNAME_REL
        elif /bin/uname -X 2>/dev/null >/dev/null ; then
-               UNAME_REL=$( (/bin/uname -X|grep Release|sed -e 's/.*= //'))
+               UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')`
                (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486
                (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \
                        && UNAME_MACHINE=i586
@@ -1187,11 +1240,11 @@ EOF
                        && UNAME_MACHINE=i686
                (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \
                        && UNAME_MACHINE=i686
-               echo "$UNAME_MACHINE"-pc-sco"$UNAME_REL"
+               GUESS=$UNAME_MACHINE-pc-sco$UNAME_REL
        else
-               echo "$UNAME_MACHINE"-pc-sysv32
+               GUESS=$UNAME_MACHINE-pc-sysv32
        fi
-       exit ;;
+       ;;
     pc:*:*:*)
        # Left here for compatibility:
        # uname -m prints for DJGPP always 'pc', but it prints nothing about
@@ -1199,37 +1252,37 @@ EOF
        # Note: whatever this is, it MUST be the same as what config.sub
        # prints for the "djgpp" host, or else GDB configure will decide that
        # this is a cross-build.
-       echo i586-pc-msdosdjgpp
-       exit ;;
+       GUESS=i586-pc-msdosdjgpp
+       ;;
     Intel:Mach:3*:*)
-       echo i386-pc-mach3
-       exit ;;
+       GUESS=i386-pc-mach3
+       ;;
     paragon:*:*:*)
-       echo i860-intel-osf1
-       exit ;;
+       GUESS=i860-intel-osf1
+       ;;
     i860:*:4.*:*) # i860-SVR4
        if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
-         echo i860-stardent-sysv"$UNAME_RELEASE" # Stardent Vistra i860-SVR4
+         GUESS=i860-stardent-sysv$UNAME_RELEASE    # Stardent Vistra i860-SVR4
        else # Add other i860-SVR4 vendors below as they are discovered.
-         echo i860-unknown-sysv"$UNAME_RELEASE"  # Unknown i860-SVR4
+         GUESS=i860-unknown-sysv$UNAME_RELEASE     # Unknown i860-SVR4
        fi
-       exit ;;
+       ;;
     mini*:CTIX:SYS*5:*)
        # "miniframe"
-       echo m68010-convergent-sysv
-       exit ;;
+       GUESS=m68010-convergent-sysv
+       ;;
     mc68k:UNIX:SYSTEM5:3.51m)
-       echo m68k-convergent-sysv
-       exit ;;
+       GUESS=m68k-convergent-sysv
+       ;;
     M680?0:D-NIX:5.3:*)
-       echo m68k-diab-dnix
-       exit ;;
+       GUESS=m68k-diab-dnix
+       ;;
     M68*:*:R3V[5678]*:*)
        test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;;
     3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 
3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | 
SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0)
        OS_REL=''
        test -r /etc/.relid \
-       && OS_REL=.$(sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid)
+       && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
        /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
          && { echo i486-ncr-sysv4.3"$OS_REL"; exit; }
        /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
@@ -1240,7 +1293,7 @@ EOF
     NCR*:*:4.2:* | MPRAS*:*:4.2:*)
        OS_REL='.3'
        test -r /etc/.relid \
-           && OS_REL=.$(sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < 
/etc/.relid)
+           && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < 
/etc/.relid`
        /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
            && { echo i486-ncr-sysv4.3"$OS_REL"; exit; }
        /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
@@ -1248,118 +1301,121 @@ EOF
        /bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \
            && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;;
     m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
-       echo m68k-unknown-lynxos"$UNAME_RELEASE"
-       exit ;;
+       GUESS=m68k-unknown-lynxos$UNAME_RELEASE
+       ;;
     mc68030:UNIX_System_V:4.*:*)
-       echo m68k-atari-sysv4
-       exit ;;
+       GUESS=m68k-atari-sysv4
+       ;;
     TSUNAMI:LynxOS:2.*:*)
-       echo sparc-unknown-lynxos"$UNAME_RELEASE"
-       exit ;;
+       GUESS=sparc-unknown-lynxos$UNAME_RELEASE
+       ;;
     rs6000:LynxOS:2.*:*)
-       echo rs6000-unknown-lynxos"$UNAME_RELEASE"
-       exit ;;
+       GUESS=rs6000-unknown-lynxos$UNAME_RELEASE
+       ;;
     PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*)
-       echo powerpc-unknown-lynxos"$UNAME_RELEASE"
-       exit ;;
+       GUESS=powerpc-unknown-lynxos$UNAME_RELEASE
+       ;;
     SM[BE]S:UNIX_SV:*:*)
-       echo mips-dde-sysv"$UNAME_RELEASE"
-       exit ;;
+       GUESS=mips-dde-sysv$UNAME_RELEASE
+       ;;
     RM*:ReliantUNIX-*:*:*)
-       echo mips-sni-sysv4
-       exit ;;
+       GUESS=mips-sni-sysv4
+       ;;
     RM*:SINIX-*:*:*)
-       echo mips-sni-sysv4
-       exit ;;
+       GUESS=mips-sni-sysv4
+       ;;
     *:SINIX-*:*:*)
        if uname -p 2>/dev/null >/dev/null ; then
-               UNAME_MACHINE=$( (uname -p) 2>/dev/null)
-               echo "$UNAME_MACHINE"-sni-sysv4
+               UNAME_MACHINE=`(uname -p) 2>/dev/null`
+               GUESS=$UNAME_MACHINE-sni-sysv4
        else
-               echo ns32k-sni-sysv
+               GUESS=ns32k-sni-sysv
        fi
-       exit ;;
+       ;;
     PENTIUM:*:4.0*:*)  # Unisys `ClearPath HMP IX 4000' SVR4/MP effort
                        # says <Richard.M.Bartel@ccMail.Census.GOV>
-       echo i586-unisys-sysv4
-       exit ;;
+       GUESS=i586-unisys-sysv4
+       ;;
     *:UNIX_System_V:4*:FTX*)
        # From Gerald Hewes <hewes@openmarket.com>.
        # How about differentiating between stratus architectures? -djm
-       echo hppa1.1-stratus-sysv4
-       exit ;;
+       GUESS=hppa1.1-stratus-sysv4
+       ;;
     *:*:*:FTX*)
        # From seanf@swdc.stratus.com.
-       echo i860-stratus-sysv4
-       exit ;;
+       GUESS=i860-stratus-sysv4
+       ;;
     i*86:VOS:*:*)
        # From Paul.Green@stratus.com.
-       echo "$UNAME_MACHINE"-stratus-vos
-       exit ;;
+       GUESS=$UNAME_MACHINE-stratus-vos
+       ;;
     *:VOS:*:*)
        # From Paul.Green@stratus.com.
-       echo hppa1.1-stratus-vos
-       exit ;;
+       GUESS=hppa1.1-stratus-vos
+       ;;
     mc68*:A/UX:*:*)
-       echo m68k-apple-aux"$UNAME_RELEASE"
-       exit ;;
+       GUESS=m68k-apple-aux$UNAME_RELEASE
+       ;;
     news*:NEWS-OS:6*:*)
-       echo mips-sony-newsos6
-       exit ;;
+       GUESS=mips-sony-newsos6
+       ;;
     R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
        if test -d /usr/nec; then
-               echo mips-nec-sysv"$UNAME_RELEASE"
+               GUESS=mips-nec-sysv$UNAME_RELEASE
        else
-               echo mips-unknown-sysv"$UNAME_RELEASE"
+               GUESS=mips-unknown-sysv$UNAME_RELEASE
        fi
-       exit ;;
+       ;;
     BeBox:BeOS:*:*)    # BeOS running on hardware made by Be, PPC only.
-       echo powerpc-be-beos
-       exit ;;
+       GUESS=powerpc-be-beos
+       ;;
     BeMac:BeOS:*:*)    # BeOS running on Mac or Mac clone, PPC only.
-       echo powerpc-apple-beos
-       exit ;;
+       GUESS=powerpc-apple-beos
+       ;;
     BePC:BeOS:*:*)     # BeOS running on Intel PC compatible.
-       echo i586-pc-beos
-       exit ;;
+       GUESS=i586-pc-beos
+       ;;
     BePC:Haiku:*:*)    # Haiku running on Intel PC compatible.
-       echo i586-pc-haiku
-       exit ;;
-    x86_64:Haiku:*:*)
-       echo x86_64-unknown-haiku
-       exit ;;
+       GUESS=i586-pc-haiku
+       ;;
+    ppc:Haiku:*:*)     # Haiku running on Apple PowerPC
+       GUESS=powerpc-apple-haiku
+       ;;
+    *:Haiku:*:*)       # Haiku modern gcc (not bound by BeOS compat)
+       GUESS=$UNAME_MACHINE-unknown-haiku
+       ;;
     SX-4:SUPER-UX:*:*)
-       echo sx4-nec-superux"$UNAME_RELEASE"
-       exit ;;
+       GUESS=sx4-nec-superux$UNAME_RELEASE
+       ;;
     SX-5:SUPER-UX:*:*)
-       echo sx5-nec-superux"$UNAME_RELEASE"
-       exit ;;
+       GUESS=sx5-nec-superux$UNAME_RELEASE
+       ;;
     SX-6:SUPER-UX:*:*)
-       echo sx6-nec-superux"$UNAME_RELEASE"
-       exit ;;
+       GUESS=sx6-nec-superux$UNAME_RELEASE
+       ;;
     SX-7:SUPER-UX:*:*)
-       echo sx7-nec-superux"$UNAME_RELEASE"
-       exit ;;
+       GUESS=sx7-nec-superux$UNAME_RELEASE
+       ;;
     SX-8:SUPER-UX:*:*)
-       echo sx8-nec-superux"$UNAME_RELEASE"
-       exit ;;
+       GUESS=sx8-nec-superux$UNAME_RELEASE
+       ;;
     SX-8R:SUPER-UX:*:*)
-       echo sx8r-nec-superux"$UNAME_RELEASE"
-       exit ;;
+       GUESS=sx8r-nec-superux$UNAME_RELEASE
+       ;;
     SX-ACE:SUPER-UX:*:*)
-       echo sxace-nec-superux"$UNAME_RELEASE"
-       exit ;;
+       GUESS=sxace-nec-superux$UNAME_RELEASE
+       ;;
     Power*:Rhapsody:*:*)
-       echo powerpc-apple-rhapsody"$UNAME_RELEASE"
-       exit ;;
+       GUESS=powerpc-apple-rhapsody$UNAME_RELEASE
+       ;;
     *:Rhapsody:*:*)
-       echo "$UNAME_MACHINE"-apple-rhapsody"$UNAME_RELEASE"
-       exit ;;
+       GUESS=$UNAME_MACHINE-apple-rhapsody$UNAME_RELEASE
+       ;;
     arm64:Darwin:*:*)
-       echo aarch64-apple-darwin"$UNAME_RELEASE"
-       exit ;;
+       GUESS=aarch64-apple-darwin$UNAME_RELEASE
+       ;;
     *:Darwin:*:*)
-       UNAME_PROCESSOR=$(uname -p)
+       UNAME_PROCESSOR=`uname -p`
        case $UNAME_PROCESSOR in
            unknown) UNAME_PROCESSOR=powerpc ;;
        esac
@@ -1393,109 +1449,119 @@ EOF
            # uname -m returns i386 or x86_64
            UNAME_PROCESSOR=$UNAME_MACHINE
        fi
-       echo "$UNAME_PROCESSOR"-apple-darwin"$UNAME_RELEASE"
-       exit ;;
+       GUESS=$UNAME_PROCESSOR-apple-darwin$UNAME_RELEASE
+       ;;
     *:procnto*:*:* | *:QNX:[0123456789]*:*)
-       UNAME_PROCESSOR=$(uname -p)
+       UNAME_PROCESSOR=`uname -p`
        if test "$UNAME_PROCESSOR" = x86; then
                UNAME_PROCESSOR=i386
                UNAME_MACHINE=pc
        fi
-       echo "$UNAME_PROCESSOR"-"$UNAME_MACHINE"-nto-qnx"$UNAME_RELEASE"
-       exit ;;
+       GUESS=$UNAME_PROCESSOR-$UNAME_MACHINE-nto-qnx$UNAME_RELEASE
+       ;;
     *:QNX:*:4*)
-       echo i386-pc-qnx
-       exit ;;
+       GUESS=i386-pc-qnx
+       ;;
     NEO-*:NONSTOP_KERNEL:*:*)
-       echo neo-tandem-nsk"$UNAME_RELEASE"
-       exit ;;
+       GUESS=neo-tandem-nsk$UNAME_RELEASE
+       ;;
     NSE-*:NONSTOP_KERNEL:*:*)
-       echo nse-tandem-nsk"$UNAME_RELEASE"
-       exit ;;
+       GUESS=nse-tandem-nsk$UNAME_RELEASE
+       ;;
     NSR-*:NONSTOP_KERNEL:*:*)
-       echo nsr-tandem-nsk"$UNAME_RELEASE"
-       exit ;;
+       GUESS=nsr-tandem-nsk$UNAME_RELEASE
+       ;;
     NSV-*:NONSTOP_KERNEL:*:*)
-       echo nsv-tandem-nsk"$UNAME_RELEASE"
-       exit ;;
+       GUESS=nsv-tandem-nsk$UNAME_RELEASE
+       ;;
     NSX-*:NONSTOP_KERNEL:*:*)
-       echo nsx-tandem-nsk"$UNAME_RELEASE"
-       exit ;;
+       GUESS=nsx-tandem-nsk$UNAME_RELEASE
+       ;;
     *:NonStop-UX:*:*)
-       echo mips-compaq-nonstopux
-       exit ;;
+       GUESS=mips-compaq-nonstopux
+       ;;
     BS2000:POSIX*:*:*)
-       echo bs2000-siemens-sysv
-       exit ;;
+       GUESS=bs2000-siemens-sysv
+       ;;
     DS/*:UNIX_System_V:*:*)
-       echo "$UNAME_MACHINE"-"$UNAME_SYSTEM"-"$UNAME_RELEASE"
-       exit ;;
+       GUESS=$UNAME_MACHINE-$UNAME_SYSTEM-$UNAME_RELEASE
+       ;;
     *:Plan9:*:*)
        # "uname -m" is not consistent, so use $cputype instead. 386
        # is converted to i386 for consistency with other x86
        # operating systems.
-       # shellcheck disable=SC2154
-       if test "$cputype" = 386; then
+       if test "${cputype-}" = 386; then
            UNAME_MACHINE=i386
-       else
-           UNAME_MACHINE="$cputype"
+       elif test "x${cputype-}" != x; then
+           UNAME_MACHINE=$cputype
        fi
-       echo "$UNAME_MACHINE"-unknown-plan9
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-plan9
+       ;;
     *:TOPS-10:*:*)
-       echo pdp10-unknown-tops10
-       exit ;;
+       GUESS=pdp10-unknown-tops10
+       ;;
     *:TENEX:*:*)
-       echo pdp10-unknown-tenex
-       exit ;;
+       GUESS=pdp10-unknown-tenex
+       ;;
     KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*)
-       echo pdp10-dec-tops20
-       exit ;;
+       GUESS=pdp10-dec-tops20
+       ;;
     XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*)
-       echo pdp10-xkl-tops20
-       exit ;;
+       GUESS=pdp10-xkl-tops20
+       ;;
     *:TOPS-20:*:*)
-       echo pdp10-unknown-tops20
-       exit ;;
+       GUESS=pdp10-unknown-tops20
+       ;;
     *:ITS:*:*)
-       echo pdp10-unknown-its
-       exit ;;
+       GUESS=pdp10-unknown-its
+       ;;
     SEI:*:*:SEIUX)
-       echo mips-sei-seiux"$UNAME_RELEASE"
-       exit ;;
+       GUESS=mips-sei-seiux$UNAME_RELEASE
+       ;;
     *:DragonFly:*:*)
-       echo "$UNAME_MACHINE"-unknown-dragonfly"$(echo "$UNAME_RELEASE"|sed -e 
's/[-(].*//')"
-       exit ;;
+       DRAGONFLY_REL=`echo "$UNAME_RELEASE" | sed -e 's/[-(].*//'`
+       GUESS=$UNAME_MACHINE-unknown-dragonfly$DRAGONFLY_REL
+       ;;
     *:*VMS:*:*)
-       UNAME_MACHINE=$( (uname -p) 2>/dev/null)
-       case "$UNAME_MACHINE" in
-           A*) echo alpha-dec-vms ; exit ;;
-           I*) echo ia64-dec-vms ; exit ;;
-           V*) echo vax-dec-vms ; exit ;;
+       UNAME_MACHINE=`(uname -p) 2>/dev/null`
+       case $UNAME_MACHINE in
+           A*) GUESS=alpha-dec-vms ;;
+           I*) GUESS=ia64-dec-vms ;;
+           V*) GUESS=vax-dec-vms ;;
        esac ;;
     *:XENIX:*:SysV)
-       echo i386-pc-xenix
-       exit ;;
+       GUESS=i386-pc-xenix
+       ;;
     i*86:skyos:*:*)
-       echo "$UNAME_MACHINE"-pc-skyos"$(echo "$UNAME_RELEASE" | sed -e 's/ 
.*$//')"
-       exit ;;
+       SKYOS_REL=`echo "$UNAME_RELEASE" | sed -e 's/ .*$//'`
+       GUESS=$UNAME_MACHINE-pc-skyos$SKYOS_REL
+       ;;
     i*86:rdos:*:*)
-       echo "$UNAME_MACHINE"-pc-rdos
-       exit ;;
+       GUESS=$UNAME_MACHINE-pc-rdos
+       ;;
+    i*86:Fiwix:*:*)
+       GUESS=$UNAME_MACHINE-pc-fiwix
+       ;;
     *:AROS:*:*)
-       echo "$UNAME_MACHINE"-unknown-aros
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-aros
+       ;;
     x86_64:VMkernel:*:*)
-       echo "$UNAME_MACHINE"-unknown-esx
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-esx
+       ;;
     amd64:Isilon\ OneFS:*:*)
-       echo x86_64-unknown-onefs
-       exit ;;
+       GUESS=x86_64-unknown-onefs
+       ;;
     *:Unleashed:*:*)
-       echo "$UNAME_MACHINE"-unknown-unleashed"$UNAME_RELEASE"
-       exit ;;
+       GUESS=$UNAME_MACHINE-unknown-unleashed$UNAME_RELEASE
+       ;;
 esac
 
+# Do we have a guess based on uname results?
+if test "x$GUESS" != x; then
+    echo "$GUESS"
+    exit
+fi
+
 # No uname command or uname output not recognized.
 set_cc_for_build
 cat > "$dummy.c" <<EOF
@@ -1535,7 +1601,7 @@ main ()
 #define __ARCHITECTURE__ "m68k"
 #endif
   int version;
-  version=$( (hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 
2>/dev/null);
+  version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`;
   if (version < 4)
     printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version);
   else
@@ -1627,7 +1693,7 @@ main ()
 }
 EOF
 
-$CC_FOR_BUILD -o "$dummy" "$dummy.c" 2>/dev/null && SYSTEM_NAME=$($dummy) &&
+$CC_FOR_BUILD -o "$dummy" "$dummy.c" 2>/dev/null && SYSTEM_NAME=`"$dummy"` &&
        { echo "$SYSTEM_NAME"; exit; }
 
 # Apollos put the system type in the environment.
@@ -1635,7 +1701,7 @@ test -d /usr/apollo && { echo "$ISP-apollo-$SYSTYPE"; 
exit; }
 
 echo "$0: unable to guess system type" >&2
 
-case "$UNAME_MACHINE:$UNAME_SYSTEM" in
+case $UNAME_MACHINE:$UNAME_SYSTEM in
     mips:Linux | mips64:Linux)
        # If we got here on MIPS GNU/Linux, output extra information.
        cat >&2 <<EOF
@@ -1657,9 +1723,11 @@ and
   https://git.savannah.gnu.org/cgit/config.git/plain/config.sub
 EOF
 
-year=$(echo $timestamp | sed 's,-.*,,')
+our_year=`echo $timestamp | sed 's,-.*,,'`
+thisyear=`date +%Y`
 # shellcheck disable=SC2003
-if test "$(expr "$(date +%Y)" - "$year")" -lt 3 ; then
+script_age=`expr "$thisyear" - "$our_year"`
+if test "$script_age" -lt 3 ; then
    cat >&2 <<EOF
 
 If $0 has already been updated, send the following data and any
@@ -1668,20 +1736,20 @@ provide the necessary information to handle your system.
 
 config.guess timestamp = $timestamp
 
-uname -m = $( (uname -m) 2>/dev/null || echo unknown)
-uname -r = $( (uname -r) 2>/dev/null || echo unknown)
-uname -s = $( (uname -s) 2>/dev/null || echo unknown)
-uname -v = $( (uname -v) 2>/dev/null || echo unknown)
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
 
-/usr/bin/uname -p = $( (/usr/bin/uname -p) 2>/dev/null)
-/bin/uname -X     = $( (/bin/uname -X) 2>/dev/null)
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null`
 
-hostinfo               = $( (hostinfo) 2>/dev/null)
-/bin/universe          = $( (/bin/universe) 2>/dev/null)
-/usr/bin/arch -k       = $( (/usr/bin/arch -k) 2>/dev/null)
-/bin/arch              = $( (/bin/arch) 2>/dev/null)
-/usr/bin/oslevel       = $( (/usr/bin/oslevel) 2>/dev/null)
-/usr/convex/getsysinfo = $( (/usr/convex/getsysinfo) 2>/dev/null)
+hostinfo               = `(hostinfo) 2>/dev/null`
+/bin/universe          = `(/bin/universe) 2>/dev/null`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null`
+/bin/arch              = `(/bin/arch) 2>/dev/null`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null`
 
 UNAME_MACHINE = "$UNAME_MACHINE"
 UNAME_RELEASE = "$UNAME_RELEASE"
diff --git a/build-aux/config.sub b/build-aux/config.sub
index 63c1f1c8..dba16e84 100755
--- a/build-aux/config.sub
+++ b/build-aux/config.sub
@@ -1,12 +1,14 @@
 #! /bin/sh
 # Configuration validation subroutine script.
-#   Copyright 1992-2021 Free Software Foundation, Inc.
+#   Copyright 1992-2022 Free Software Foundation, Inc.
 
-timestamp='2021-01-08'
+# shellcheck disable=SC2006,SC2268 # see below for rationale
+
+timestamp='2022-01-03'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
+# the Free Software Foundation, either version 3 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful, but
@@ -50,7 +52,14 @@ timestamp='2021-01-08'
 #      CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
 # It is wrong to echo any other type of specification.
 
-me=$(echo "$0" | sed -e 's,.*/,,')
+# The "shellcheck disable" line above the timestamp inhibits complaints
+# about features and limitations of the classic Bourne shell that were
+# superseded or lifted in POSIX.  However, this script identifies a wide
+# variety of pre-POSIX systems that do not have POSIX shells at all, and
+# even some reasonably current systems (Solaris 10 as case-in-point) still
+# have a pre-POSIX /bin/sh.
+
+me=`echo "$0" | sed -e 's,.*/,,'`
 
 usage="\
 Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS
@@ -67,7 +76,7 @@ Report bugs and patches to <config-patches@gnu.org>."
 version="\
 GNU config.sub ($timestamp)
 
-Copyright 1992-2021 Free Software Foundation, Inc.
+Copyright 1992-2022 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -112,9 +121,11 @@ esac
 
 # Split fields of configuration type
 # shellcheck disable=SC2162
+saved_IFS=$IFS
 IFS="-" read field1 field2 field3 field4 <<EOF
 $1
 EOF
+IFS=$saved_IFS
 
 # Separate into logical components for further validation
 case $1 in
@@ -163,6 +174,10 @@ case $1 in
                                                basic_machine=$field1
                                                basic_os=$field2
                                                ;;
+                                       zephyr*)
+                                               basic_machine=$field1-unknown
+                                               basic_os=$field2
+                                               ;;
                                        # Manufacturers
                                        dec* | mips* | sequent* | encore* | 
pc533* | sgi* | sony* \
                                        | att* | 7300* | 3300* | delta* | 
motorola* | sun[234]* \
@@ -769,22 +784,22 @@ case $basic_machine in
                vendor=hp
                ;;
        i*86v32)
-               cpu=$(echo "$1" | sed -e 's/86.*/86/')
+               cpu=`echo "$1" | sed -e 's/86.*/86/'`
                vendor=pc
                basic_os=sysv32
                ;;
        i*86v4*)
-               cpu=$(echo "$1" | sed -e 's/86.*/86/')
+               cpu=`echo "$1" | sed -e 's/86.*/86/'`
                vendor=pc
                basic_os=sysv4
                ;;
        i*86v)
-               cpu=$(echo "$1" | sed -e 's/86.*/86/')
+               cpu=`echo "$1" | sed -e 's/86.*/86/'`
                vendor=pc
                basic_os=sysv
                ;;
        i*86sol2)
-               cpu=$(echo "$1" | sed -e 's/86.*/86/')
+               cpu=`echo "$1" | sed -e 's/86.*/86/'`
                vendor=pc
                basic_os=solaris2
                ;;
@@ -917,14 +932,16 @@ case $basic_machine in
                ;;
        leon-*|leon[3-9]-*)
                cpu=sparc
-               vendor=$(echo "$basic_machine" | sed 's/-.*//')
+               vendor=`echo "$basic_machine" | sed 's/-.*//'`
                ;;
 
        *-*)
                # shellcheck disable=SC2162
+               saved_IFS=$IFS
                IFS="-" read cpu vendor <<EOF
 $basic_machine
 EOF
+               IFS=$saved_IFS
                ;;
        # We use `pc' rather than `unknown'
        # because (1) that's what they normally are, and
@@ -1003,6 +1020,11 @@ case $cpu-$vendor in
                ;;
 
        # Here we normalize CPU types with a missing or matching vendor
+       armh-unknown | armh-alt)
+               cpu=armv7l
+               vendor=alt
+               basic_os=${basic_os:-linux-gnueabihf}
+               ;;
        dpx20-unknown | dpx20-bull)
                cpu=rs6000
                vendor=bull
@@ -1084,7 +1106,7 @@ case $cpu-$vendor in
                cpu=mipsisa64sb1el
                ;;
        sh5e[lb]-*)
-               cpu=$(echo "$cpu" | sed 's/^\(sh.\)e\(.\)$/\1\2e/')
+               cpu=`echo "$cpu" | sed 's/^\(sh.\)e\(.\)$/\1\2e/'`
                ;;
        spur-*)
                cpu=spur
@@ -1102,9 +1124,9 @@ case $cpu-$vendor in
                cpu=x86_64
                ;;
        xscale-* | xscalee[bl]-*)
-               cpu=$(echo "$cpu" | sed 's/^xscale/arm/')
+               cpu=`echo "$cpu" | sed 's/^xscale/arm/'`
                ;;
-       arm64-*)
+       arm64-* | aarch64le-*)
                cpu=aarch64
                ;;
 
@@ -1165,7 +1187,7 @@ case $cpu-$vendor in
                        | alphapca5[67] | alpha64pca5[67] \
                        | am33_2.0 \
                        | amdgcn \
-                       | arc | arceb \
+                       | arc | arceb | arc32 | arc64 \
                        | arm | arm[lb]e | arme[lb] | armv* \
                        | avr | avr32 \
                        | asmjs \
@@ -1204,9 +1226,13 @@ case $cpu-$vendor in
                        | mips64vr5900 | mips64vr5900el \
                        | mipsisa32 | mipsisa32el \
                        | mipsisa32r2 | mipsisa32r2el \
+                       | mipsisa32r3 | mipsisa32r3el \
+                       | mipsisa32r5 | mipsisa32r5el \
                        | mipsisa32r6 | mipsisa32r6el \
                        | mipsisa64 | mipsisa64el \
                        | mipsisa64r2 | mipsisa64r2el \
+                       | mipsisa64r3 | mipsisa64r3el \
+                       | mipsisa64r5 | mipsisa64r5el \
                        | mipsisa64r6 | mipsisa64r6el \
                        | mipsisa64sb1 | mipsisa64sb1el \
                        | mipsisa64sr71k | mipsisa64sr71kel \
@@ -1283,35 +1309,37 @@ esac
 if test x$basic_os != x
 then
 
-# First recognize some ad-hoc caes, or perhaps split kernel-os, or else just
+# First recognize some ad-hoc cases, or perhaps split kernel-os, or else just
 # set os.
 case $basic_os in
        gnu/linux*)
                kernel=linux
-               os=$(echo $basic_os | sed -e 's|gnu/linux|gnu|')
+               os=`echo "$basic_os" | sed -e 's|gnu/linux|gnu|'`
                ;;
        os2-emx)
                kernel=os2
-               os=$(echo $basic_os | sed -e 's|os2-emx|emx|')
+               os=`echo "$basic_os" | sed -e 's|os2-emx|emx|'`
                ;;
        nto-qnx*)
                kernel=nto
-               os=$(echo $basic_os | sed -e 's|nto-qnx|qnx|')
+               os=`echo "$basic_os" | sed -e 's|nto-qnx|qnx|'`
                ;;
        *-*)
                # shellcheck disable=SC2162
+               saved_IFS=$IFS
                IFS="-" read kernel os <<EOF
 $basic_os
 EOF
+               IFS=$saved_IFS
                ;;
        # Default OS when just kernel was specified
        nto*)
                kernel=nto
-               os=$(echo $basic_os | sed -e 's|nto|qnx|')
+               os=`echo "$basic_os" | sed -e 's|nto|qnx|'`
                ;;
        linux*)
                kernel=linux
-               os=$(echo $basic_os | sed -e 's|linux|gnu|')
+               os=`echo "$basic_os" | sed -e 's|linux|gnu|'`
                ;;
        *)
                kernel=
@@ -1332,7 +1360,7 @@ case $os in
                os=cnk
                ;;
        solaris1 | solaris1.*)
-               os=$(echo $os | sed -e 's|solaris1|sunos4|')
+               os=`echo "$os" | sed -e 's|solaris1|sunos4|'`
                ;;
        solaris)
                os=solaris2
@@ -1361,7 +1389,7 @@ case $os in
                os=sco3.2v4
                ;;
        sco3.2.[4-9]*)
-               os=$(echo $os | sed -e 's/sco3.2./sco3.2v/')
+               os=`echo "$os" | sed -e 's/sco3.2./sco3.2v/'`
                ;;
        sco*v* | scout)
                # Don't match below
@@ -1391,7 +1419,7 @@ case $os in
                os=lynxos
                ;;
        mac[0-9]*)
-               os=$(echo "$os" | sed -e 's|mac|macos|')
+               os=`echo "$os" | sed -e 's|mac|macos|'`
                ;;
        opened*)
                os=openedition
@@ -1400,10 +1428,10 @@ case $os in
                os=os400
                ;;
        sunos5*)
-               os=$(echo "$os" | sed -e 's|sunos5|solaris2|')
+               os=`echo "$os" | sed -e 's|sunos5|solaris2|'`
                ;;
        sunos6*)
-               os=$(echo "$os" | sed -e 's|sunos6|solaris3|')
+               os=`echo "$os" | sed -e 's|sunos6|solaris3|'`
                ;;
        wince*)
                os=wince
@@ -1437,7 +1465,7 @@ case $os in
                ;;
        # Preserve the version number of sinix5.
        sinix5.*)
-               os=$(echo $os | sed -e 's|sinix|sysv|')
+               os=`echo "$os" | sed -e 's|sinix|sysv|'`
                ;;
        sinix*)
                os=sysv4
@@ -1684,7 +1712,7 @@ fi
 # Now, validate our (potentially fixed-up) OS.
 case $os in
        # Sometimes we do "kernel-libc", so those need to count as OSes.
-       musl* | newlib* | uclibc*)
+       musl* | newlib* | relibc* | uclibc*)
                ;;
        # Likewise for "kernel-abi"
        eabi* | gnueabi*)
@@ -1707,12 +1735,12 @@ case $os in
             | nindy* | vxsim* | vxworks* | ebmon* | hms* | mvs* \
             | clix* | riscos* | uniplus* | iris* | isc* | rtu* | xenix* \
             | mirbsd* | netbsd* | dicos* | openedition* | ose* \
-            | bitrig* | openbsd* | solidbsd* | libertybsd* | os108* \
+            | bitrig* | openbsd* | secbsd* | solidbsd* | libertybsd* | os108* \
             | ekkobsd* | freebsd* | riscix* | lynxos* | os400* \
             | bosx* | nextstep* | cxux* | aout* | elf* | oabi* \
             | ptx* | coff* | ecoff* | winnt* | domain* | vsta* \
             | udi* | lites* | ieee* | go32* | aux* | hcos* \
-            | chorusrdb* | cegcc* | glidix* \
+            | chorusrdb* | cegcc* | glidix* | serenity* \
             | cygwin* | msys* | pe* | moss* | proelf* | rtems* \
             | midipix* | mingw32* | mingw64* | mint* \
             | uxpv* | beos* | mpeix* | udk* | moxiebox* \
@@ -1725,7 +1753,8 @@ case $os in
             | skyos* | haiku* | rdos* | toppers* | drops* | es* \
             | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
             | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \
-            | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx*)
+            | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx* | zephyr* \
+            | fiwix* )
                ;;
        # This one is extra strict with allowed versions
        sco3.2v2 | sco3.2v[4-9]* | sco5v6*)
@@ -1742,11 +1771,12 @@ esac
 # As a final step for OS-related things, validate the OS-kernel combination
 # (given a valid OS), if there is a kernel.
 case $kernel-$os in
-       linux-gnu* | linux-dietlibc* | linux-android* | linux-newlib* | 
linux-musl* | linux-uclibc* )
+       linux-gnu* | linux-dietlibc* | linux-android* | linux-newlib* \
+                  | linux-musl* | linux-relibc* | linux-uclibc* )
                ;;
        uclinux-uclibc* )
                ;;
-       -dietlibc* | -newlib* | -musl* | -uclibc* )
+       -dietlibc* | -newlib* | -musl* | -relibc* | -uclibc* )
                # These are just libc implementations, not actual OSes, and thus
                # require a kernel.
                echo "Invalid configuration \`$1': libc \`$os' needs explicit 
kernel." 1>&2
diff --git a/build-aux/gendocs.sh b/build-aux/gendocs.sh
index 1872de9d..8dbac302 100755
--- a/build-aux/gendocs.sh
+++ b/build-aux/gendocs.sh
@@ -2,13 +2,13 @@
 # gendocs.sh -- generate a GNU manual in many formats.  This script is
 #   mentioned in maintain.texi.  See the help message below for usage details.
 
-scriptversion=2021-01-01.00
+scriptversion=2022-01-01.00
 
-# Copyright 2003-2021 Free Software Foundation, Inc.
+# Copyright 2003-2022 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
+# the Free Software Foundation, either version 3 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful,
@@ -58,7 +58,7 @@ EMAIL=webmasters@gnu.org  # please override with --email
 commonarg= # passed to all makeinfo/texi2html invcations.
 dirargs=   # passed to all tools (-I dir).
 dirs=      # -I directories.
-htmlarg="--css-ref=/software/gnulib/manual.css -c TOP_NODE_UP_URL=/manual"
+htmlarg="--css-ref=https://www.gnu.org/software/gnulib/manual.css -c 
TOP_NODE_UP_URL=/manual"
 default_htmlarg=true
 infoarg=--no-split
 generate_ascii=true
@@ -73,7 +73,7 @@ texarg="-t @finalout"
 
 version="gendocs.sh $scriptversion
 
-Copyright 2021 Free Software Foundation, Inc.
+Copyright 2022 Free Software Foundation, Inc.
 There is NO warranty.  You may redistribute this software
 under the terms of the GNU General Public License.
 For more information about these matters, see the files named COPYING."
@@ -202,7 +202,7 @@ base=$PACKAGE
 
 if $default_htmlarg && test -n "$use_texi2html"; then
   # The legacy texi2html doesn't support TOP_NODE_UP_URL
-  htmlarg="--css-ref=/software/gnulib/manual.css"
+  htmlarg="--css-ref=https://www.gnu.org/software/gnulib/manual.css";
 fi
 
 if test -n "$srcfile"; then
diff --git a/build-aux/git-version-gen b/build-aux/git-version-gen
index 959f9889..72a2cc8e 100755
--- a/build-aux/git-version-gen
+++ b/build-aux/git-version-gen
@@ -1,12 +1,12 @@
 #!/bin/sh
 # Print a version string.
-scriptversion=2019-10-13.15; # UTC
+scriptversion=2022-07-09.08; # UTC
 
-# Copyright (C) 2007-2021 Free Software Foundation, Inc.
+# Copyright (C) 2007-2022 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
+# the Free Software Foundation, either version 3 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful,
@@ -65,9 +65,10 @@ scriptversion=2019-10-13.15; # UTC
 # EXTRA_DIST = $(top_srcdir)/.version
 # BUILT_SOURCES = $(top_srcdir)/.version
 # $(top_srcdir)/.version:
-#      echo $(VERSION) > $@-t && mv $@-t $@
+#      echo '$(VERSION)' > $@-t
+#      mv $@-t $@
 # dist-hook:
-#      echo $(VERSION) > $(distdir)/.tarball-version
+#      echo '$(VERSION)' > $(distdir)/.tarball-version
 
 
 me=$0
@@ -75,10 +76,10 @@ me=$0
 year=`expr "$scriptversion" : '\([^-]*\)'`
 version="git-version-gen $scriptversion
 
-Copyright $year Free Software Foundation, Inc.
-There is NO warranty.  You may redistribute this software
-under the terms of the GNU General Public License.
-For more information about these matters, see the files named COPYING."
+Copyright (C) ${year} Free Software Foundation, Inc.
+License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
+This is free software: you are free to change and redistribute it.
+There is NO WARRANTY, to the extent permitted by law."
 
 usage="\
 Usage: $me [OPTION]... \$srcdir/.tarball-version [TAG-NORMALIZATION-SED-SCRIPT]
@@ -93,7 +94,7 @@ Options:
    --help             display this help and exit
    --version          output version information and exit
 
-Running without arguments will suffice in most cases."
+Send patches and bug reports to <bug-gnulib@gnu.org>."
 
 prefix=v
 fallback=
diff --git a/build-aux/gitlog-to-changelog b/build-aux/gitlog-to-changelog
index de76f658..82d9f973 100755
--- a/build-aux/gitlog-to-changelog
+++ b/build-aux/gitlog-to-changelog
@@ -3,7 +3,7 @@
 
 # Convert git log output to ChangeLog format.
 
-# Copyright (C) 2008-2021 Free Software Foundation, Inc.
+# Copyright (C) 2008-2022 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -35,7 +35,7 @@
 eval 'exec perl -wSx "$0" "$@"'
      if 0;
 
-my $VERSION = '2020-04-04 15:07'; # UTC
+my $VERSION = '2022-01-27 18:49'; # UTC
 # The definition above must lie within the first 8 lines in order
 # for the Emacs time-stamp write hook (at end) to update it.
 # If you change this file with Emacs, please let the write hook
@@ -455,7 +455,8 @@ sub git_dir_option($)
           # If there were any lines
           if (@line == 0)
             {
-              warn "$ME: warning: empty commit message:\n  $date_line\n";
+              warn "$ME: warning: empty commit message:\n"
+                   . "  commit $sha\n  $date_line\n";
             }
           else
             {
diff --git a/build-aux/gnupload b/build-aux/gnupload
index 90e7c822..b97e566f 100755
--- a/build-aux/gnupload
+++ b/build-aux/gnupload
@@ -1,9 +1,9 @@
 #!/bin/sh
 # Sign files and upload them.
 
-scriptversion=2018-05-19.18; # UTC
+scriptversion=2022-01-27.18; # UTC
 
-# Copyright (C) 2004-2021 Free Software Foundation, Inc.
+# Copyright (C) 2004-2022 Free Software Foundation, Inc.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -145,6 +145,12 @@ the build-aux/ directory of the gnulib package
 
 Send patches and bug reports to <bug-gnulib@gnu.org>."
 
+copyright_year=`echo "$scriptversion" | sed -e 's/[^0-9].*//'`
+copyright="Copyright (C) ${copyright_year} Free Software Foundation, Inc.
+License GPLv2+: GNU GPL version 2 or later <https://gnu.org/licenses/gpl.html>.
+This is free software: you are free to change and redistribute it.
+There is NO WARRANTY, to the extent permitted by law."
+
 # Read local configuration file
 if test -r "$conffile"; then
   echo "$0: Reading configuration file $conffile"
@@ -209,7 +215,8 @@ while test -n "$1"; do
       ;;
     --version)
       echo "gnupload $scriptversion"
-      exit $?
+      echo "$copyright"
+      exit 0
       ;;
     --)
       shift
diff --git a/build-aux/move-if-change b/build-aux/move-if-change
index e85e90af..9f7379a6 100755
--- a/build-aux/move-if-change
+++ b/build-aux/move-if-change
@@ -8,7 +8,7 @@ VERSION='2018-03-07 03:47'; # UTC
 # If you change this file with Emacs, please let the write hook
 # do its job.  Otherwise, update this string manually.
 
-# Copyright (C) 2002-2021 Free Software Foundation, Inc.
+# Copyright (C) 2002-2022 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/build-aux/texinfo.tex b/build-aux/texinfo.tex
index d787d4df..f059cfb3 100644
--- a/build-aux/texinfo.tex
+++ b/build-aux/texinfo.tex
@@ -3,9 +3,9 @@
 % Load plain if necessary, i.e., if running under initex.
 \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
 %
-\def\texinfoversion{2020-11-25.18}
+\def\texinfoversion{2022-05-30.20}
 %
-% Copyright 1985, 1986, 1988, 1990-2020 Free Software Foundation, Inc.
+% Copyright 1985, 1986, 1988, 1990-2022 Free Software Foundation, Inc.
 %
 % This texinfo.tex file is free software: you can redistribute it and/or
 % modify it under the terms of the GNU General Public License as
@@ -574,7 +574,7 @@
 
 
 % @end foo calls \checkenv and executes the definition of \Efoo.
-\parseargdef\end{
+\parseargdef\end{%
   \if 1\csname iscond.#1\endcsname
   \else
     % The general wording of \badenverr may not be ideal.
@@ -1002,6 +1002,14 @@ where each line of input produces a line of output.}
   \global\everypar = {}%
 }
 
+% leave vertical mode without cancelling any first paragraph indent
+\gdef\imageindent{%
+  \toks0=\everypar
+  \everypar={}%
+  \ptexnoindent
+  \global\everypar=\toks0
+}
+
 
 % @refill is a no-op.
 \let\refill=\relax
@@ -1862,19 +1870,23 @@ output) for that.)}
       \closein 1
     \endgroup
     %
-    \def\xetexpdfext{pdf}%
-    \ifx\xeteximgext\xetexpdfext
-      \XeTeXpdffile "#1".\xeteximgext ""
-    \else
-      \def\xetexpdfext{PDF}%
+    % Putting an \hbox around the image can prevent an over-long line
+    % after the image.
+    \hbox\bgroup
+      \def\xetexpdfext{pdf}%
       \ifx\xeteximgext\xetexpdfext
         \XeTeXpdffile "#1".\xeteximgext ""
       \else
-        \XeTeXpicfile "#1".\xeteximgext ""
+        \def\xetexpdfext{PDF}%
+        \ifx\xeteximgext\xetexpdfext
+          \XeTeXpdffile "#1".\xeteximgext ""
+        \else
+          \XeTeXpicfile "#1".\xeteximgext ""
+        \fi
       \fi
-    \fi
-    \ifdim \wd0 >0pt width \xeteximagewidth \fi
-    \ifdim \wd2 >0pt height \xeteximageheight \fi \relax
+      \ifdim \wd0 >0pt width \xeteximagewidth \fi
+      \ifdim \wd2 >0pt height \xeteximageheight \fi \relax
+    \egroup
   }
 \fi
 
@@ -3159,16 +3171,8 @@ end
 % Default is `distinct'.
 \kbdinputstyle distinct
 
-% @kbd is like @code, except that if the argument is just one @key command,
-% then @kbd has no effect.
-\def\kbd#1{{\def\look{#1}\expandafter\kbdsub\look??\par}}
-
-\def\xkey{\key}
-\def\kbdsub#1#2#3\par{%
-  \def\one{#1}\def\three{#3}\def\threex{??}%
-  \ifx\one\xkey\ifx\threex\three \key{#2}%
-  \else{\tclose{\kbdfont\setcodequotes\look}}\fi
-  \else{\tclose{\kbdfont\setcodequotes\look}}\fi
+\def\kbd#1{%
+  \tclose{\kbdfont\setcodequotes#1}%
 }
 
 % definition of @key that produces a lozenge.  Doesn't adjust to text size.
@@ -3181,14 +3185,9 @@ end
 %    \kern-0.4pt\hrule}%
 %  \kern-.06em\raise0.4pt\hbox{\angleright}}}}
 
-% definition of @key with no lozenge.  If the current font is already
-% monospace, don't change it; that way, we respect @kbdinputstyle.  But
-% if it isn't monospace, then use \tt.
+% definition of @key with no lozenge.
 %
-\def\key#1{{\setregularquotes
-  \nohyphenation
-  \ifmonospace\else\tt\fi
-  #1}\null}
+\def\key#1{{\setregularquotes \nohyphenation \tt #1}\null}
 
 % @clicksequence{File @click{} Open ...}
 \def\clicksequence#1{\begingroup #1\endgroup}
@@ -3602,6 +3601,9 @@ $$%
 \def\quotedblbase{{\ecfont \char"12}}
 \def\quotesinglbase{{\ecfont \char"0D}}
 %
+\def\L{{\ecfont \char"8A}} % L with stroke
+\def\l{{\ecfont \char"AA}} % l with stroke
+%
 % This positioning is not perfect (see the ogonek LaTeX package), but
 % we have the precomposed glyphs for the most common cases.  We put the
 % tests to use those glyphs in the single \ogonek macro so we have fewer
@@ -4289,82 +4291,8 @@ $$%
   \doitemize{#1.}\flushcr
 }
 
-% @alphaenumerate and @capsenumerate are abbreviations for giving an arg
-% to @enumerate.
-%
-\def\alphaenumerate{\enumerate{a}}
-\def\capsenumerate{\enumerate{A}}
-\def\Ealphaenumerate{\Eenumerate}
-\def\Ecapsenumerate{\Eenumerate}
-
 
 % @multitable macros
-% Amy Hendrickson, 8/18/94, 3/6/96
-%
-% @multitable ... @end multitable will make as many columns as desired.
-% Contents of each column will wrap at width given in preamble.  Width
-% can be specified either with sample text given in a template line,
-% or in percent of \hsize, the current width of text on page.
-
-% Table can continue over pages but will only break between lines.
-
-% To make preamble:
-%
-% Either define widths of columns in terms of percent of \hsize:
-%   @multitable @columnfractions .25 .3 .45
-%   @item ...
-%
-%   Numbers following @columnfractions are the percent of the total
-%   current hsize to be used for each column. You may use as many
-%   columns as desired.
-
-
-% Or use a template:
-%   @multitable {Column 1 template} {Column 2 template} {Column 3 template}
-%   @item ...
-%   using the widest term desired in each column.
-
-% Each new table line starts with @item, each subsequent new column
-% starts with @tab. Empty columns may be produced by supplying @tab's
-% with nothing between them for as many times as empty columns are needed,
-% ie, @tab@tab@tab will produce two empty columns.
-
-% @item, @tab do not need to be on their own lines, but it will not hurt
-% if they are.
-
-% Sample multitable:
-
-%   @multitable {Column 1 template} {Column 2 template} {Column 3 template}
-%   @item first col stuff @tab second col stuff @tab third col
-%   @item
-%   first col stuff
-%   @tab
-%   second col stuff
-%   @tab
-%   third col
-%   @item first col stuff @tab second col stuff
-%   @tab Many paragraphs of text may be used in any column.
-%
-%         They will wrap at the width determined by the template.
-%   @item@tab@tab This will be in third column.
-%   @end multitable
-
-% Default dimensions may be reset by user.
-% @multitableparskip is vertical space between paragraphs in table.
-% @multitableparindent is paragraph indent in table.
-% @multitablecolmargin is horizontal space to be left between columns.
-% @multitablelinespace is space to leave between table items, baseline
-%                                                            to baseline.
-%   0pt means it depends on current normal line spacing.
-%
-\newskip\multitableparskip
-\newskip\multitableparindent
-\newdimen\multitablecolspace
-\newskip\multitablelinespace
-\multitableparskip=0pt
-\multitableparindent=6pt
-\multitablecolspace=12pt
-\multitablelinespace=0pt
 
 % Macros used to set up halign preamble:
 %
@@ -4412,8 +4340,6 @@ $$%
   \go
 }
 
-% multitable-only commands.
-%
 % @headitem starts a heading row, which we typeset in bold.  Assignments
 % have to be global since we are inside the implicit group of an
 % alignment entry.  \everycr below resets \everytab so we don't have to
@@ -4430,14 +4356,8 @@ $$%
 % default for tables with no headings.
 \let\headitemcrhook=\relax
 %
-% A \tab used to include \hskip1sp.  But then the space in a template
-% line is not enough.  That is bad.  So let's go back to just `&' until
-% we again encounter the problem the 1sp was intended to solve.
-%                                      --karl, nathan@acm.org, 20apr99.
 \def\tab{\checkenv\multitable &\the\everytab}%
 
-% @multitable ... @end multitable definitions:
-%
 \newtoks\everytab  % insert after every tab.
 %
 \envdef\multitable{%
@@ -4452,9 +4372,8 @@ $$%
   %
   \tolerance=9500
   \hbadness=9500
-  \setmultitablespacing
-  \parskip=\multitableparskip
-  \parindent=\multitableparindent
+  \parskip=0pt
+  \parindent=6pt
   \overfullrule=0pt
   \global\colcount=0
   %
@@ -4484,47 +4403,24 @@ $$%
   % continue for many paragraphs if desired.
   \halign\bgroup &%
     \global\advance\colcount by 1
-    \multistrut
+    \strut
     \vtop{%
-      % Use the current \colcount to find the correct column width:
+      \advance\hsize by -1\leftskip
+      % Find the correct column width
       \hsize=\expandafter\csname col\the\colcount\endcsname
       %
-      % In order to keep entries from bumping into each other
-      % we will add a \leftskip of \multitablecolspace to all columns after
-      % the first one.
-      %
-      % If a template has been used, we will add \multitablecolspace
-      % to the width of each template entry.
-      %
-      % If the user has set preamble in terms of percent of \hsize we will
-      % use that dimension as the width of the column, and the \leftskip
-      % will keep entries from bumping into each other.  Table will start at
-      % left margin and final column will justify at right margin.
-      %
-      % Make sure we don't inherit \rightskip from the outer environment.
-      \rightskip=0pt
+      \advance\rightskip by -1\rightskip % Zero leaving only any stretch
       \ifnum\colcount=1
-       % The first column will be indented with the surrounding text.
-       \advance\hsize by\leftskip
+        \advance\hsize by\leftskip % Add indent of surrounding text
       \else
-       \ifsetpercent \else
-         % If user has not set preamble in terms of percent of \hsize
-         % we will advance \hsize by \multitablecolspace.
-         \advance\hsize by \multitablecolspace
-       \fi
-       % In either case we will make \leftskip=\multitablecolspace:
-      \leftskip=\multitablecolspace
+        % In order to keep entries from bumping into each other.
+        \leftskip=12pt
+        \ifsetpercent \else
+          % If a template has been used
+          \advance\hsize by \leftskip
+        \fi
       \fi
-      % Ignoring space at the beginning and end avoids an occasional spurious
-      % blank line, when TeX decides to break the line at the space before the
-      % box from the multistrut, so the strut ends up on a line by itself.
-      % For example:
-      % @multitable @columnfractions .11 .89
-      % @item @code{#}
-      % @tab Legal holiday which is valid in major parts of the whole country.
-      % Is automatically provided with highlighting sequences respectively
-      % marking characters.
-      \noindent\ignorespaces##\unskip\multistrut
+      \noindent\ignorespaces##\unskip\strut
     }\cr
 }
 \def\Emultitable{%
@@ -4533,35 +4429,10 @@ $$%
   \global\setpercentfalse
 }
 
-\def\setmultitablespacing{%
-  \def\multistrut{\strut}% just use the standard line spacing
-  %
-  % Compute \multitablelinespace (if not defined by user) for use in
-  % \multitableparskip calculation.  We used define \multistrut based on
-  % this, but (ironically) that caused the spacing to be off.
-  % See bug-texinfo report from Werner Lemberg, 31 Oct 2004 12:52:20 +0100.
-\ifdim\multitablelinespace=0pt
-\setbox0=\vbox{X}\global\multitablelinespace=\the\baselineskip
-\global\advance\multitablelinespace by-\ht0
-\fi
-% Test to see if parskip is larger than space between lines of
-% table. If not, do nothing.
-%        If so, set to same dimension as multitablelinespace.
-\ifdim\multitableparskip>\multitablelinespace
-\global\multitableparskip=\multitablelinespace
-\global\advance\multitableparskip-7pt % to keep parskip somewhat smaller
-                                      % than skip between lines in the table.
-\fi%
-\ifdim\multitableparskip=0pt
-\global\multitableparskip=\multitablelinespace
-\global\advance\multitableparskip-7pt % to keep parskip somewhat smaller
-                                      % than skip between lines in the table.
-\fi}
-
 
 \message{conditionals,}
 
-% @iftex, @ifnotdocbook, @ifnothtml, @ifnotinfo, @ifnotplaintext,
+% @iftex, @ifnotdocbook, @ifnothtml, @ifnotinfo, @ifnotlatex, @ifnotplaintext,
 % @ifnotxml always succeed.  They currently do nothing; we don't
 % attempt to check whether the conditionals are properly nested.  But we
 % have to remember that they are conditionals, so that @end doesn't
@@ -4575,6 +4446,7 @@ $$%
 \makecond{ifnotdocbook}
 \makecond{ifnothtml}
 \makecond{ifnotinfo}
+\makecond{ifnotlatex}
 \makecond{ifnotplaintext}
 \makecond{ifnotxml}
 
@@ -4587,10 +4459,12 @@ $$%
 \def\ifdocbook{\doignore{ifdocbook}}
 \def\ifhtml{\doignore{ifhtml}}
 \def\ifinfo{\doignore{ifinfo}}
+\def\iflatex{\doignore{iflatex}}
 \def\ifnottex{\doignore{ifnottex}}
 \def\ifplaintext{\doignore{ifplaintext}}
 \def\ifxml{\doignore{ifxml}}
 \def\ignore{\doignore{ignore}}
+\def\latex{\doignore{latex}}
 \def\menu{\doignore{menu}}
 \def\xml{\doignore{xml}}
 
@@ -5171,30 +5045,29 @@ $$%
   \let\lbracechar\{%
   \let\rbracechar\}%
   %
+  % Non-English letters.
+  \def\AA{AA}%
+  \def\AE{AE}%
+  \def\DH{DZZ}%
+  \def\L{L}%
+  \def\OE{OE}%
+  \def\O{O}%
+  \def\TH{TH}%
+  \def\aa{aa}%
+  \def\ae{ae}%
+  \def\dh{dzz}%
+  \def\exclamdown{!}%
+  \def\l{l}%
+  \def\oe{oe}%
+  \def\ordf{a}%
+  \def\ordm{o}%
+  \def\o{o}%
+  \def\questiondown{?}%
+  \def\ss{ss}%
+  \def\th{th}%
   %
   \let\do\indexnofontsdef
   %
-  % Non-English letters.
-  \do\AA{AA}%
-  \do\AE{AE}%
-  \do\DH{DZZ}%
-  \do\L{L}%
-  \do\OE{OE}%
-  \do\O{O}%
-  \do\TH{TH}%
-  \do\aa{aa}%
-  \do\ae{ae}%
-  \do\dh{dzz}%
-  \do\exclamdown{!}%
-  \do\l{l}%
-  \do\oe{oe}%
-  \do\ordf{a}%
-  \do\ordm{o}%
-  \do\o{o}%
-  \do\questiondown{?}%
-  \do\ss{ss}%
-  \do\th{th}%
-  %
   \do\LaTeX{LaTeX}%
   \do\TeX{TeX}%
   %
@@ -6083,7 +5956,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
 % Chapters, sections, etc.
 
 % Let's start with @part.
-\outer\parseargdef\part{\partzzz{#1}}
+\parseargdef\part{\partzzz{#1}}
 \def\partzzz#1{%
   \chapoddpage
   \null
@@ -7712,6 +7585,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
 %
 \def\printdefunline#1#2{%
   \begingroup
+    \plainfrenchspacing
     % call \deffnheader:
     #1#2 \endheader
     % common ending:
@@ -8801,9 +8675,11 @@ might help (with 'rm \jobname.?? \jobname.??s')%
 }
 \def\wordTop{Top}
 
-% Until the next @node or @bye command, divert output to a box that is not
-% output.
-\def\ignorenode{\setbox\dummybox\vbox\bgroup\def\node{\egroup\node}%
+% Until the next @node, @part or @bye command, divert output to a box that
+% is not output.
+\def\ignorenode{\setbox\dummybox\vbox\bgroup
+\def\part{\egroup\part}%
+\def\node{\egroup\node}%
 \ignorenodebye
 }
 
@@ -8931,7 +8807,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
       \else
         \ifhavexrefs
           % We (should) know the real title if we have the xref values.
-          \def\printedrefname{\refx{#1-title}{}}%
+          \def\printedrefname{\refx{#1-title}}%
         \else
           % Otherwise just copy the Info node name.
           \def\printedrefname{\ignorespaces #1}%
@@ -9025,7 +8901,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
     % If the user specified the print name (third arg) to the ref,
     % print it instead of our usual "Figure 1.2".
     \ifdim\wd\printedrefnamebox = 0pt
-      \refx{#1-snt}{}%
+      \refx{#1-snt}%
     \else
       \printedrefname
     \fi
@@ -9060,9 +8936,9 @@ might help (with 'rm \jobname.?? \jobname.??s')%
     \else
       % Reference within this manual.
       %
-      % Only output a following space if the -snt ref is nonempty; for
-      % @unnumbered and @anchor, it won't be.
-      \setbox2 = \hbox{\ignorespaces \refx{#1-snt}{}}%
+      % Only output a following space if the -snt ref is nonempty, as the ref
+      % will be empty for @unnumbered and @anchor.
+      \setbox2 = \hbox{\ignorespaces \refx{#1-snt}}%
       \ifdim \wd2 > 0pt \refx{#1-snt}\space\fi
       %
       % output the `[mynode]' via the macro below so it can be overridden.
@@ -9073,7 +8949,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
         ,\space
         %
         % output the `page 3'.
-        \turnoffactive \putwordpage\tie\refx{#1-pg}{}%
+        \turnoffactive \putwordpage\tie\refx{#1-pg}%
         % Add a , if xref followed by a space
         \if\space\noexpand\tokenafterxref ,%
         \else\ifx\     \tokenafterxref ,% @TAB
@@ -9150,9 +9026,8 @@ might help (with 'rm \jobname.?? \jobname.??s')%
   \fi\fi\fi
 }
 
-% \refx{NAME}{SUFFIX} - reference a cross-reference string named NAME.  SUFFIX
-% is output afterwards if non-empty.
-\def\refx#1#2{%
+% \refx{NAME} - reference a cross-reference string named NAME.
+\def\refx#1{%
   \requireauxfile
   {%
     \indexnofonts
@@ -9179,7 +9054,6 @@ might help (with 'rm \jobname.?? \jobname.??s')%
     % It's defined, so just use it.
     \thisrefX
   \fi
-  #2% Output the suffix in any case.
 }
 
 % This is the macro invoked by entries in the aux file.  Define a control
@@ -9289,10 +9163,10 @@ might help (with 'rm \jobname.?? \jobname.??s')%
   \catcode`\[=\other
   \catcode`\]=\other
   \catcode`\"=\other
-  \catcode`\_=\other
-  \catcode`\|=\other
-  \catcode`\<=\other
-  \catcode`\>=\other
+  \catcode`\_=\active
+  \catcode`\|=\active
+  \catcode`\<=\active
+  \catcode`\>=\active
   \catcode`\$=\other
   \catcode`\#=\other
   \catcode`\&=\other
@@ -9514,32 +9388,34 @@ might help (with 'rm \jobname.?? \jobname.??s')%
   \catcode`\^^M = 5     % in case we're inside an example
   \normalturnoffactive  % allow _ et al. in names
   \makevalueexpandable
-  % If the image is by itself, center it.
   \ifvmode
     \imagevmodetrue
   \else \ifx\centersub\centerV
     % for @center @image, we need a vbox so we can have our vertical space
     \imagevmodetrue
-    \vbox\bgroup % vbox has better behavior than vtop herev
+    \vbox\bgroup % vbox has better behavior than vtop here
   \fi\fi
   %
   \ifimagevmode
-    \nobreak\medskip
+    \medskip
     % Usually we'll have text after the image which will insert
     % \parskip glue, so insert it here too to equalize the space
     % above and below.
-    \nobreak\vskip\parskip
-    \nobreak
+    \vskip\parskip
+    %
+    % Place image in a \vtop for a top page margin that is (close to) correct,
+    % as \topskip glue is relative to the first baseline.
+    \vtop\bgroup\hrule height 0pt\vskip-\parskip
   \fi
   %
-  % Leave vertical mode so that indentation from an enclosing
+  % Enter horizontal mode so that indentation from an enclosing
   %  environment such as @quotation is respected.
   % However, if we're at the top level, we don't want the
   %  normal paragraph indentation.
   % On the other hand, if we are in the case of @center @image, we don't
   %  want to start a paragraph, which will create a hsize-width box and
   %  eradicate the centering.
-  \ifx\centersub\centerV\else \noindent \fi
+  \ifx\centersub\centerV \else \imageindent \fi
   %
   % Output the image.
   \ifpdf
@@ -9561,6 +9437,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
   \fi
   %
   \ifimagevmode
+    \egroup
     \medskip  % space after a standalone image
   \fi
   \ifx\centersub\centerV \egroup \fi
@@ -11021,6 +10898,9 @@ directory should work if nowhere else does.}
   \DeclareUnicodeCharacter{1EF8}{\~Y}%
   \DeclareUnicodeCharacter{1EF9}{\~y}%
   %
+  % Exotic spaces
+  \DeclareUnicodeCharacter{2007}{\hphantom{0}}%
+  %
   % Punctuation
   \DeclareUnicodeCharacter{2013}{--}%
   \DeclareUnicodeCharacter{2014}{---}%
@@ -11366,23 +11246,6 @@ directory should work if nowhere else does.}
   \defbodyindent = .5cm
 }}
 
-% Use @smallerbook to reset parameters for 6x9 trim size.
-% (Just testing, parameters still in flux.)
-\def\smallerbook{{\globaldefs = 1
-  \parskip = 1.5pt plus 1pt
-  \textleading = 12pt
-  %
-  \internalpagesizes{7.4in}{4.8in}%
-                    {-.2in}{-.4in}%
-                    {0pt}{14pt}%
-                    {9in}{6in}%
-  %
-  \lispnarrowing = 0.25in
-  \tolerance = 700
-  \contentsrightmargin = 0pt
-  \defbodyindent = .4cm
-}}
-
 % Use @afourpaper to print on European A4 paper.
 \def\afourpaper{{\globaldefs = 1
   \parskip = 3pt plus 2pt minus 1pt
@@ -11498,6 +11361,7 @@ directory should work if nowhere else does.}
 \message{and turning on texinfo input format.}
 
 \def^^L{\par} % remove \outer, so ^L can appear in an @comment
+\catcode`\^^K = 10 % treat vertical tab as whitespace
 
 % DEL is a comment character, in case @c does not suffice.
 \catcode`\^^? = 14
@@ -11721,13 +11585,12 @@ directory should work if nowhere else does.}
 @setregularquotes
 
 @c Local variables:
-@c eval: (add-hook 'before-save-hook 'time-stamp)
+@c eval: (add-hook 'before-save-hook 'time-stamp nil t)
+@c time-stamp-pattern: "texinfoversion{%Y-%02m-%02d.%02H}"
 @c page-delimiter: "^\\\\message\\|emacs-page"
-@c time-stamp-start: "def\\\\texinfoversion{"
-@c time-stamp-format: "%:y-%02m-%02d.%02H"
-@c time-stamp-end: "}"
 @c End:
 
 @c vim:sw=2:
 
 @enablebackslashhack
+
diff --git a/build-aux/update-copyright b/build-aux/update-copyright
index fae3a5fb..81b691e8 100755
--- a/build-aux/update-copyright
+++ b/build-aux/update-copyright
@@ -3,11 +3,11 @@
 
 # Update an FSF copyright year list to include the current year.
 
-# Copyright (C) 2009-2021 Free Software Foundation, Inc.
+# Copyright (C) 2009-2022 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
+# the Free Software Foundation, either version 3, or (at your option)
 # any later version.
 #
 # This program is distributed in the hope that it will be useful,
diff --git a/build-aux/useless-if-before-free b/build-aux/useless-if-before-free
index 784d80b3..1a027a5d 100755
--- a/build-aux/useless-if-before-free
+++ b/build-aux/useless-if-before-free
@@ -4,7 +4,7 @@
 # Detect instances of "if (p) free (p);".
 # Likewise "if (p != 0)", "if (0 != p)", or with NULL; and with braces.
 
-# Copyright (C) 2008-2021 Free Software Foundation, Inc.
+# Copyright (C) 2008-2022 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -36,12 +36,14 @@
 eval 'exec perl -wSx "$0" "$@"'
      if 0;
 
-my $VERSION = '2020-04-04 15:07'; # UTC
+my $VERSION = '2022-01-27 18:51'; # UTC
 # The definition above must lie within the first 8 lines in order
 # for the Emacs time-stamp write hook (at end) to update it.
 # If you change this file with Emacs, please let the write hook
 # do its job.  Otherwise, update this string manually.
 
+my $copyright_year = '2022';
+
 use strict;
 use warnings;
 use Getopt::Long;
@@ -118,7 +120,19 @@ sub is_NULL ($)
   GetOptions
     (
      help => sub { usage 0 },
-     version => sub { print "$ME version $VERSION\n"; exit },
+     version =>
+       sub
+       {
+         print "$ME version $VERSION\n";
+         print "Copyright (C) $copyright_year Free Software Foundation, 
Inc.\n";
+         print "License GPLv3+: GNU GPL version 3 or later 
<https://gnu.org/licenses/gpl.html>.\n"
+             . "This is free software: you are free to change and redistribute 
it.\n"
+             . "There is NO WARRANTY, to the extent permitted by law.\n";
+         print "\n";
+         my $author = "Jim Meyering";
+         print "Written by $author.\n";
+         exit
+       },
      list => \$list,
      'name=s@' => \@name,
     ) or usage 1;
diff --git a/build-aux/vc-list-files b/build-aux/vc-list-files
index cf168ea8..77750b9f 100755
--- a/build-aux/vc-list-files
+++ b/build-aux/vc-list-files
@@ -4,7 +4,7 @@
 # Print a version string.
 scriptversion=2018-03-07.03; # UTC
 
-# Copyright (C) 2006-2021 Free Software Foundation, Inc.
+# Copyright (C) 2006-2022 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/doc/gendocs_template b/doc/gendocs_template
index cd9ac383..0415d947 100644
--- a/doc/gendocs_template
+++ b/doc/gendocs_template
@@ -2,7 +2,7 @@
 <!-- Parent-Version: 1.78 -->
 
 <!--
-Copyright (C) 2006-2021 Free Software Foundation, Inc.
+Copyright (C) 2006-2022 Free Software Foundation, Inc.
 
 Copying and distribution of this file, with or without modification,
 are permitted in any medium without royalty provided the copyright
@@ -87,7 +87,7 @@ the FSF.  Broken links and other corrections or suggestions 
can be sent
 to <a href="mailto:%%EMAIL%%";>&lt;%%EMAIL%%&gt;</a>.</p>
 </div>
 
-<p>Copyright &copy; 2020 Free Software Foundation, Inc.</p>
+<p>Copyright &copy; 2022 Free Software Foundation, Inc.</p>
 
 <p>This page is licensed under a <a rel="license"
 href="https://creativecommons.org/licenses/by-nd/3.0/us/";>Creative
diff --git a/doc/standards.texi b/doc/standards.texi
index e5ae3cb0..30592c65 100644
--- a/doc/standards.texi
+++ b/doc/standards.texi
@@ -3,7 +3,7 @@
 @setfilename standards.info
 @settitle GNU Coding Standards
 @c This date is automagically updated when you save this file:
-@set lastupdate June 12, 2020
+@set lastupdate August 17, 2021
 @c %**end of header
 
 @dircategory GNU organization
@@ -1193,7 +1193,7 @@ --help
 @cindex bug reports
 Near the end of the @samp{--help} option's output, please place lines
 giving the email address for bug reports, the package's home page
-(normally @indicateurl{https://www.gnu.org/software/@var{pkg}}, and the
+(normally @indicateurl{https://www.gnu.org/software/@var{pkg}}), and the
 general page for help using GNU programs.  The format should be like this:
 
 @example
@@ -2935,18 +2935,33 @@ System Portability
 versions.  For a GNU program, this kind of portability is desirable, but
 not paramount.
 
-The primary purpose of GNU software is to run on top of the GNU kernel,
-compiled with the GNU C compiler, on various types of CPU@.  So the
-kinds of portability that are absolutely necessary are quite limited.
-But it is important to support Linux-based GNU systems, since they
-are the form of GNU that is popular.
+The primary purpose of GNU software is to run as part of the GNU
+operating system, compiled with GNU compilers, on various types of
+hardware.  So the kinds of portability that are absolutely necessary
+are quite limited.  It is important to support Linux-based GNU
+systems, since they are the form of GNU that people mainly use.
 
-Beyond that, it is good to support the other free operating systems
-(*BSD), and it is nice to support other Unix-like systems if you want
-to.  Supporting a variety of Unix-like systems is desirable, although
-not paramount.  It is usually not too hard, so you may as well do it.
-But you don't have to consider it an obligation, if it does turn out to
-be hard.
+Making a GNU program operate on operating systems other than the GNU
+system is not part of the core goal of developing a GNU package.  You
+don't ever have to do that.  However, users will ask you to do that,
+and cooperating with those requests is useful---as long as you don't
+let it dominate the project or impede the primary goal.
+
+It is good to support the other free or nearly free operating systems
+(for instance, *BSD).  Supporting a variety of Unix-like systems is
+desirable, although not paramount.  It is usually not too hard, so you
+may as well do it.  But you don't have to consider it an obligation,
+if it does turn out to be hard.
+
+For the most part it is good to port the program to more platforms,
+but you should not let take up so much of your time that it hinders
+you from improving the program in more central ways.  If it starts to
+do that, please tell users that you don't want to spend any more
+time on this---someone else must write that code, debug it, document
+it, etc., and then you can install it.
+
+You can reject porting patches for technical reasons too, as with any
+other patch that users submit.  It is up to you.
 
 @pindex autoconf
 The easiest way to achieve portability to most Unix-like systems is to
@@ -4593,21 +4608,21 @@ References
 A web page recommends a program in an implicit but particularly strong
 way if it requires users to run that program in order to use the page.
 Many pages contain Javascript code which they recommend in this way.
-This Javascript code may be free or nonfree, but nonfree is the usual
+This Javascript code may be free or non-free, but non-free is the usual
 case.
 
 If the purpose for which you would refer to the page cannot be carried
-out without running nonfree Javascript code, then you should not refer
+out without running non-free Javascript code, then you should not refer
 to it.  Thus, if the purpose of referring to the page is for people to
 view a video, or subscribing to a mailing list, and the viewing or
-subscribing fail to work if the user's browser blocks the nonfree
+subscribing fail to work if the user's browser blocks the non-free
 Javascript code, then don't refer to that page.
 
-The extreme case is that of web sites which depend on nonfree
+The extreme case is that of web sites which depend on non-free
 Javascript code even to @emph{see} the contents of the pages.  Any
 site hosted on @indicateurl{wix.com} has this problem, and so do some
 other sites.  Referring people to such pages to read their contents
-is, in effect, urging them to run those nonfree programs---so please
+is, in effect, urging them to run those non-free programs---so please
 don't refer to those pages.  (Such pages also break the Web, so they
 deserve condemnation for two reasons.)
 
diff --git a/lib/Autom4te/ChannelDefs.pm b/lib/Autom4te/ChannelDefs.pm
index 6b60f205..7800e546 100644
--- a/lib/Autom4te/ChannelDefs.pm
+++ b/lib/Autom4te/ChannelDefs.pm
@@ -1,4 +1,4 @@
-# Copyright (C) 2002-2020 Free Software Foundation, Inc.
+# Copyright (C) 2002-2022 Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/lib/Autom4te/Channels.pm b/lib/Autom4te/Channels.pm
index 0dc39749..0f2296f8 100644
--- a/lib/Autom4te/Channels.pm
+++ b/lib/Autom4te/Channels.pm
@@ -1,4 +1,4 @@
-# Copyright (C) 2002-2020 Free Software Foundation, Inc.
+# Copyright (C) 2002-2022 Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/lib/Autom4te/Configure_ac.pm b/lib/Autom4te/Configure_ac.pm
index 5d6d80cb..d93171d6 100644
--- a/lib/Autom4te/Configure_ac.pm
+++ b/lib/Autom4te/Configure_ac.pm
@@ -1,4 +1,4 @@
-# Copyright (C) 2003-2020 Free Software Foundation, Inc.
+# Copyright (C) 2003-2022 Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/lib/Autom4te/FileUtils.pm b/lib/Autom4te/FileUtils.pm
index 14982a4a..902efcb0 100644
--- a/lib/Autom4te/FileUtils.pm
+++ b/lib/Autom4te/FileUtils.pm
@@ -1,4 +1,4 @@
-# Copyright (C) 2003-2020 Free Software Foundation, Inc.
+# Copyright (C) 2003-2022 Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/lib/Autom4te/Getopt.pm b/lib/Autom4te/Getopt.pm
index 1ef2f99c..c898f77a 100644
--- a/lib/Autom4te/Getopt.pm
+++ b/lib/Autom4te/Getopt.pm
@@ -1,4 +1,4 @@
-# Copyright (C) 2012-2020 Free Software Foundation, Inc.
+# Copyright (C) 2012-2022 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/lib/Autom4te/XFile.pm b/lib/Autom4te/XFile.pm
index 3b385c57..30d3780c 100644
--- a/lib/Autom4te/XFile.pm
+++ b/lib/Autom4te/XFile.pm
@@ -1,4 +1,4 @@
-# Copyright (C) 2001-2020 Free Software Foundation, Inc.
+# Copyright (C) 2001-2022 Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/m4/autobuild.m4 b/m4/autobuild.m4
index d931c7d9..bdb98f90 100644
--- a/m4/autobuild.m4
+++ b/m4/autobuild.m4
@@ -1,5 +1,5 @@
 # autobuild.m4 serial 8
-dnl Copyright (C) 2004, 2006-2021 Free Software Foundation, Inc.
+dnl Copyright (C) 2004, 2006-2022 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.
diff --git a/maint.mk b/maint.mk
index 8cfcca14..ed7d138f 100644
--- a/maint.mk
+++ b/maint.mk
@@ -2,7 +2,7 @@
 # This Makefile fragment tries to be general-purpose enough to be
 # used by many projects via the gnulib maintainer-makefile module.
 
-## Copyright (C) 2001-2021 Free Software Foundation, Inc.
+## Copyright (C) 2001-2022 Free Software Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
@@ -64,7 +64,7 @@ VC_LIST = $(srcdir)/$(_build-aux)/vc-list-files -C $(srcdir)
 
 # You can override this variable in cfg.mk if your gnulib submodule lives
 # in a different location.
-gnulib_dir ?= $(shell if test -d $(srcdir)/gnulib; then \
+gnulib_dir ?= $(shell if test -f $(srcdir)/gnulib/gnulib-tool; then \
                        echo $(srcdir)/gnulib; \
                else \
                        echo ${GNULIB_SRCDIR}; \
@@ -625,9 +625,9 @@ sc_prohibit_xalloc_without_use:
          $(_sc_header_without_use)
 
 # Extract function names:
-# perl -lne '/^(?:extern )?(?:void|char) \*?(\w+) *\(/ and print $1' lib/hash.h
+# perl -lne '/^(?:extern )?(?:void|char|Hash_table) \*?(\w+) *\(/ and print 
$1' lib/hash.h
 _hash_re = \
-clear|delete|free|get_(first|next)|insert|lookup|print_statistics|reset_tuning
+hash_(re(set_tuning|move)|xin(itialize|sert)|in(itialize|sert)|get_(firs|nex)t|print_statistics|(delet|fre)e|lookup|clear)
 _hash_fn = \<($(_hash_re)) *\(
 _hash_struct = (struct )?\<[Hh]ash_(table|tuning)\>
 sc_prohibit_hash_without_use:
@@ -1034,7 +1034,7 @@ perl_filename_lineno_text_ =                              
                \
     -e '  }'
 
 prohibit_doubled_words_ = \
-    the then in an on if is it but for or at and do to
+    the then in an on if is it but for or at and do to can
 # expand the regex before running the check to avoid using expensive captures
 prohibit_doubled_word_expanded_ = \
     $(join $(prohibit_doubled_words_),$(addprefix 
\s+,$(prohibit_doubled_words_)))
@@ -1394,6 +1394,11 @@ gpg_key_ID ?=                                            
                \
      && git cat-file tag v$(VERSION)                                   \
         | $(gpgv) --status-fd 1 --keyring /dev/null - - 2>/dev/null    \
         | $(AWK) '/^\[GNUPG:] ERRSIG / {print $$3; exit}')
+gpg_key_email ?=                                                       \
+  $$(gpg --list-key --with-colons $(gpg_key_ID) 2>/dev/null            \
+       | $(AWK) -F: '/^uid/ {print $$10; exit}'                        \
+       | $(SED) -n 's/.*<\(.*\)>/\1/p')
+gpg_keyring_url ?= 
https://savannah.gnu.org/project/release-gpgkeys.php?group=$(PACKAGE)&download=1
 
 translation_project_ ?= coordinator@translationproject.org
 
@@ -1412,7 +1417,7 @@ announcement_mail_headers_alpha =         \
 announcement_mail_Cc_beta = $(announcement_mail_Cc_alpha)
 announcement_mail_headers_beta = $(announcement_mail_headers_alpha)
 
-announcement_mail_Cc_ ?= $(announcement_mail_Cc_$(release-type))
+announcement_Cc_ ?= $(announcement_Cc_$(release-type))
 announcement_mail_headers_ ?= $(announcement_mail_headers_$(release-type))
 announcement: NEWS ChangeLog $(rel-files)
 # Not $(AM_V_GEN) since the output of this command serves as
@@ -1424,12 +1429,15 @@ announcement: NEWS ChangeLog $(rel-files)
            --prev=$(PREV_VERSION)                                      \
            --curr=$(VERSION)                                           \
            --gpg-key-id=$(gpg_key_ID)                                  \
+           $$(test -n "$(gpg_key_email)" &&                            \
+              echo --gpg-key-email="$(gpg_key_email)")                 \
+           $$(test -n "$(gpg_keyring_url)" &&                          \
+              echo --gpg-keyring-url="$(gpg_keyring_url)")             \
            --srcdir=$(srcdir)                                          \
            --news=$(srcdir)/NEWS                                       \
            --bootstrap-tools=$(bootstrap-tools)                        \
            $$(case ,$(bootstrap-tools), in (*,gnulib,*)                \
               echo --gnulib-version=$(gnulib-version);; esac)          \
-           --no-print-checksums                                        \
            $(addprefix --url-dir=, $(url_dir_list))
 
 .PHONY: release-commit
@@ -1526,7 +1534,7 @@ alpha beta stable: $(local-check) writable-files 
$(submodule-checks)
 
 release:
        $(AM_V_GEN)$(MAKE) _version
-       $(AM_V_GEN)$(MAKE) $(release-type)
+       $(AM_V_at)$(MAKE) $(release-type)
 
 # Override this in cfg.mk if you follow different procedures.
 release-prep-hook ?= release-prep
@@ -1635,12 +1643,32 @@ refresh-po:
        ls $(PODIR)/*.po | $(SED) 's/\.po//;s,$(PODIR)/,,' | \
          sort >> $(PODIR)/LINGUAS
 
- # Running indent once is not idempotent, but running it twice is.
+# Indentation
+
+indent_args ?= -ppi 1
+C_SOURCES ?= $$($(VC_LIST_EXCEPT) | grep '\.[ch]\(.in\)\?$$')
 INDENT_SOURCES ?= $(C_SOURCES)
+exclude_file_name_regexp--indent ?= $(exclude_file_name_regexp--sc_indent)
+
 .PHONY: indent
-indent:
-       indent $(INDENT_SOURCES)
-       indent $(INDENT_SOURCES)
+indent: # Running indent once is not idempotent, but running it twice is.
+       $(AM_V_GEN)indent $(indent_args) $(INDENT_SOURCES) && \
+       indent $(indent_args) $(INDENT_SOURCES)
+
+sc_indent:
+       @if ! command -v indent > /dev/null; then                       \
+           echo 1>&2 '$(ME): sc_indent: indent is missing';            \
+       else                                                            \
+         fail=0; files="$(INDENT_SOURCES)";                            \
+         for f in $$files; do                                          \
+           indent $(indent_args) -st $$f                               \
+               | indent $(indent_args) -st -                           \
+               | diff -u $$f - || fail=1;                              \
+         done;                                                         \
+         test $$fail = 1 &&                                            \
+           { echo 1>&2 '$(ME): code format error, try "make indent"';  \
+             exit 1; } || :;                                           \
+       fi
 
 # If you want to set UPDATE_COPYRIGHT_* environment variables,
 # put the assignments in this variable.
@@ -1686,9 +1714,8 @@ sc_tight_scope: tight-scope.mk
        exit $$fail
 
 tight-scope.mk: $(ME)
-       @rm -f $@ $@-t
        @perl -ne '/^# TS-start/.../^# TS-end/ and print' $(srcdir)/$(ME) > $@-t
-       @chmod a=r $@-t && mv $@-t $@
+       @mv $@-t $@
 
 ifeq (a,b)
 # TS-start
@@ -1719,8 +1746,8 @@ _gl_TS_unmarked_extern_vars ?=
 # a macro like this: GLOBAL(type, var_name, initializer), then you
 # can override this definition to automatically extract those names:
 # export _gl_TS_var_match = \
-#   /^(?:$(_gl_TS_extern)) .*?\**(\w+)(\[.*?\])?;/ || /\bGLOBAL\(.*?,\s*(.*?),/
-_gl_TS_var_match ?= /^(?:$(_gl_TS_extern)) .*?(\w+)(\[.*?\])?;/
+#   /^(?:$(_gl_TS_extern)) .*?\**(\w+)(\[.*?])?;/ || /\bGLOBAL\(.*?,\s*(.*?),/
+_gl_TS_var_match ?= /^(?:$(_gl_TS_extern)) .*?(\w+)(\[.*?])?;/
 
 # The names of object files in (or relative to) $(_gl_TS_dir).
 _gl_TS_obj_files ?= *.$(OBJEXT)
-- 
2.36.1




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