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            <textarea name='content' rows='20'>#! /bin/sh
# Common wrapper for a few potentially missing GNU and other programs.

scriptversion=2024-06-07.14; # UTC

# shellcheck disable=SC2006,SC2268 # we must support pre-POSIX shells

# Copyright (C) 1996-2024 Free Software Foundation, Inc.
# Originally written by Fran,cois Pinard &lt;pinard@iro.umontreal.ca&gt;, 1996.

# 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 2, or (at your option)
# any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program.  If not, see &lt;https://www.gnu.org/licenses/&gt;.

# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.

if test $# -eq 0; then
  echo 1&gt;&amp;2 &quot;Try &#039;$0 --help&#039; for more information&quot;
  exit 1
fi

case $1 in

  --is-lightweight)
    # Used by our autoconf macros to check whether the available missing
    # script is modern enough.
    exit 0
    ;;

  --run)
    # Back-compat with the calling convention used by older automake.
    shift
    ;;

  -h|--h|--he|--hel|--help)
    echo &quot;\
$0 [OPTION]... PROGRAM [ARGUMENT]...

Run &#039;PROGRAM [ARGUMENT]...&#039;, returning a proper advice when this fails due
to PROGRAM being missing or too old.

Options:
  -h, --help      display this help and exit
  -v, --version   output version information and exit

Supported PROGRAM values:
aclocal autoconf autogen  autoheader autom4te automake autoreconf
bison   flex     help2man lex        makeinfo perl     yacc

Version suffixes to PROGRAM as well as the prefixes &#039;gnu-&#039;, &#039;gnu&#039;, and
&#039;g&#039; are ignored when checking the name.

Report bugs to &lt;bug-automake@gnu.org&gt;.
GNU Automake home page: &lt;https://www.gnu.org/software/automake/&gt;.
General help using GNU software: &lt;https://www.gnu.org/gethelp/&gt;.&quot;
    exit $?
    ;;

  -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
    echo &quot;missing (GNU Automake) $scriptversion&quot;
    exit $?
    ;;

  -*)
    echo 1&gt;&amp;2 &quot;$0: unknown &#039;$1&#039; option&quot;
    echo 1&gt;&amp;2 &quot;Try &#039;$0 --help&#039; for more information&quot;
    exit 1
    ;;

esac

# Run the given program, remember its exit status.
&quot;$@&quot;; st=$?

# If it succeeded, we are done.
test $st -eq 0 &amp;&amp; exit 0

# Also exit now if we it failed (or wasn&#039;t found), and &#039;--version&#039; was
# passed; such an option is passed most likely to detect whether the
# program is present and works.
case $2 in --version|--help) exit $st;; esac

# Exit code 63 means version mismatch.  This often happens when the user
# tries to use an ancient version of a tool on a file that requires a
# minimum version.
if test $st -eq 63; then
  msg=&quot;probably too old&quot;
elif test $st -eq 127; then
  # Program was missing.
  msg=&quot;missing on your system&quot;
else
  # Program was found and executed, but failed.  Give up.
  exit $st
fi

perl_URL=https://www.perl.org/
flex_URL=https://github.com/westes/flex
gnu_software_URL=https://www.gnu.org/software

program_details ()
{
  case $1 in
    aclocal|automake|autoreconf)
      echo &quot;The &#039;$1&#039; program is part of the GNU Automake package:&quot;
      echo &quot;&lt;$gnu_software_URL/automake&gt;&quot;
      echo &quot;It also requires GNU Autoconf, GNU m4 and Perl in order to run:&quot;
      echo &quot;&lt;$gnu_software_URL/autoconf&gt;&quot;
      echo &quot;&lt;$gnu_software_URL/m4/&gt;&quot;
      echo &quot;&lt;$perl_URL&gt;&quot;
      ;;
    autoconf|autom4te|autoheader)
      echo &quot;The &#039;$1&#039; program is part of the GNU Autoconf package:&quot;
      echo &quot;&lt;$gnu_software_URL/autoconf/&gt;&quot;
      echo &quot;It also requires GNU m4 and Perl in order to run:&quot;
      echo &quot;&lt;$gnu_software_URL/m4/&gt;&quot;
      echo &quot;&lt;$perl_URL&gt;&quot;
      ;;
    *)
      :
      ;;
  esac
}

give_advice ()
{
  # Normalize program name to check for.
  normalized_program=`echo &quot;$1&quot; | sed &#039;
    s/^gnu-//; t
    s/^gnu//; t
    s/^g//; t&#039;`

  printf &#039;%s\n&#039; &quot;&#039;$1&#039; is $msg.&quot;

  configure_deps=&quot;&#039;configure.ac&#039; or m4 files included by &#039;configure.ac&#039;&quot;
  autoheader_deps=&quot;&#039;acconfig.h&#039;&quot;
  automake_deps=&quot;&#039;Makefile.am&#039;&quot;
  aclocal_deps=&quot;&#039;acinclude.m4&#039;&quot;
  case $normalized_program in
    aclocal*)
      echo &quot;You should only need it if you modified $aclocal_deps or&quot;
      echo &quot;$configure_deps.&quot;
      ;;
    autoconf*)
      echo &quot;You should only need it if you modified $configure_deps.&quot;
      ;;
    autogen*)
      echo &quot;You should only need it if you modified a &#039;.def&#039; or &#039;.tpl&#039; file.&quot;
      echo &quot;You may want to install the GNU AutoGen package:&quot;
      echo &quot;&lt;$gnu_software_URL/autogen/&gt;&quot;
      ;;
    autoheader*)
      echo &quot;You should only need it if you modified $autoheader_deps or&quot;
      echo &quot;$configure_deps.&quot;
      ;;
    automake*)
      echo &quot;You should only need it if you modified $automake_deps or&quot;
      echo &quot;$configure_deps.&quot;
      ;;
    autom4te*)
      echo &quot;You might have modified some maintainer files that require&quot;
      echo &quot;the &#039;autom4te&#039; program to be rebuilt.&quot;
      ;;
    autoreconf*)
      echo &quot;You should only need it if you modified $aclocal_deps or&quot;
      echo &quot;$automake_deps or $autoheader_deps or $automake_deps or&quot;
      echo &quot;$configure_deps.&quot;
      ;;
    bison*|yacc*)
      echo &quot;You should only need it if you modified a &#039;.y&#039; file.&quot;
      echo &quot;You may want to install the GNU Bison package:&quot;
      echo &quot;&lt;$gnu_software_URL/bison/&gt;&quot;
      ;;
    help2man*)
      echo &quot;You should only need it if you modified a dependency&quot; \
           &quot;of a man page.&quot;
      echo &quot;You may want to install the GNU Help2man package:&quot;
      echo &quot;&lt;$gnu_software_URL/help2man/&gt;&quot;
    ;;
    lex*|flex*)
      echo &quot;You should only need it if you modified a &#039;.l&#039; file.&quot;
      echo &quot;You may want to install the Fast Lexical Analyzer package:&quot;
      echo &quot;&lt;$flex_URL&gt;&quot;
      ;;
    makeinfo*)
      echo &quot;You should only need it if you modified a &#039;.texi&#039; file, or&quot;
      echo &quot;any other file indirectly affecting the aspect of the manual.&quot;
      echo &quot;You might want to install the Texinfo package:&quot;
      echo &quot;&lt;$gnu_software_URL/texinfo/&gt;&quot;
      echo &quot;The spurious makeinfo call might also be the consequence of&quot;
      echo &quot;using a buggy &#039;make&#039; (AIX, DU, IRIX), in which case you might&quot;
      echo &quot;want to install GNU make:&quot;
      echo &quot;&lt;$gnu_software_URL/make/&gt;&quot;
      ;;
    perl*)
      echo &quot;You should only need it to run GNU Autoconf, GNU Automake, &quot;
      echo &quot;  assorted other tools, or if you modified a Perl source file.&quot;
      echo &quot;You may want to install the Perl 5 language interpreter:&quot;
      echo &quot;&lt;$perl_URL&gt;&quot;
      ;;
    *)
      echo &quot;You might have modified some files without having the proper&quot;
      echo &quot;tools for further handling them.  Check the &#039;README&#039; file, it&quot;
      echo &quot;often tells you about the needed prerequisites for installing&quot;
      echo &quot;this package.  You may also peek at any GNU archive site, in&quot;
      echo &quot;case some other package contains this missing &#039;$1&#039; program.&quot;
      ;;
  esac
  program_details &quot;$normalized_program&quot;
}

give_advice &quot;$1&quot; | sed -e &#039;1s/^/WARNING: /&#039; \
                       -e &#039;2,$s/^/         /&#039; &gt;&amp;2

# Propagate the correct exit status (expected to be 127 for a program
# not found, 63 for a program that failed due to version mismatch).
exit $st

# Local variables:
# eval: (add-hook &#039;before-save-hook &#039;time-stamp)
# time-stamp-start: &quot;scriptversion=&quot;
# time-stamp-format: &quot;%:y-%02m-%02d.%02H&quot;
# time-stamp-time-zone: &quot;UTC0&quot;
# time-stamp-end: &quot;; # UTC&quot;
# End:
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