GIF89a=( �' 7IAXKgNgYvYx\%wh&h}t�h%�s%x�}9�R��&�0%� (�.��5�SD��&�a)�x5��;ͣ*ȡ&ղ)ׯ7׵<ѻ4�3�H֧KͯT��Y�aq��q��F� !� ' !� NETSCAPE2.0 , =( ��pH,�Ȥr�l:xШtJ�Z�جv��z��xL.:��z�n���|N�����~�������& !�0`9R�}��"�"a:S�~x��������g���E�������R���E����B�� ��ȸ��D���"�Ů� �H��L��D٫D�B�����D���T���H �G��A R�ڐ |�� ٭&��E8�S�kG�A�px�a��� R2XB��E8I���6X�:vT)�~��q�賥��"F~%x� � 4#Z�0O|-4Bs�X:= Q� Sal��yXJ`GȦ|s h��K3l7�B|�$'7Jީܪ0!��D�n=�P� ����0`�R�lj����v>���5 �.69�ϸd�����nlv�9��f{���Pbx �l5}�p� ��� �3a���I�O����!ܾ���i��9��#��)p�a ޽ �{�)vm��%D~ 6f��s}Œ�D�W E�`!� �&L8x� �ܝ{)x`X/>�}m��R�*|`D�=�_ ^�5 !_&'a�O�7�c��`DCx`�¥�9�Y�F���`?��"� �n@`�} lď��@4>�d S �v�xN��"@~d��=�g�s~G��� ���ud &p8Q�)ƫlXD����A~H�ySun�j���k*D�LH�] ��C"J��Xb~ʪwSt}6K,��q�S:9ت:���l�@�`�� �.۬�t9�S�[:��=`9N����{¿�A !R�:���6��x�0�_ �;������^���#����!����U���;0L1�����p% A��U̬ݵ��%�S��!���~`�G���� ���=4�np�3���������u�u�ٮ|%2�I��r�#0��J``8�@S@5� ���^`8E�]�.�S���7 � �0�j S�D� z���i�S�����!���l��w9*�D�I�nEX��� &A�Go�Qf��F��;���}�J����F5��Q|���X��T��y���]� o ��C=��:���PB@ D׽S�(>�C�x}`��xJЬ�۠��p+eE0`�}`A �/NE�� �9@��� H�7�!%B0`�l*��!8 2�%� �:�1�0E��ux%nP1�!�C)�P81l�ɸF#Ƭ{����B0>�� �b�`��O3��()yRpb��E.ZD8�H@% �Rx+%���c� ���f��b�d�`F�"8�XH"��-�|1�6iI, 2�$+](A*j� QT�o0.�U�`�R�}`�SN����yae�����b��o~ S)�y�@��3 �tT�0�&�+~L�f"�-|�~��>!�v��~�\Q1)}@�}h#aP72�"�$ !� " , =( &7IAXG]KgNgYvYxR"k\%w]'}h}t�h%�g+�s%r.m3ax3�x�}9��&��+�!7�0%� (�.�SD��&��;�"&ײ)׻4��6�K� �@pH,�Ȥr�l:xШtJ�Z�جv��z��xL.:��z�n���|N�����~�������& !�0`9R�}��"�"a:S�~x��������g �� E �� �������E �´��C���ǶR��D��"Ʒ�ʱH��M��GڬD�B����D��T����G���C�C� l&�~:'�tU�6ɹ#��)�'�.6�&��Ȼ K(8p0N�?!�2"��NIJX>R��OM '��2�*x�>#n� �@<[:�I�f ��T���Cdb��[�}E�5MBo��@�`@��tW-3 �x�B���jI�&E�9[T&$��ﯧ&"s��ȳ����dc�UUρ#���ldj?����`\}���u|3'�R]�6 �S#�!�FKL�*N E���`$�:e�YD�q�.�촁�s \-�jA 9�����-��M[�x(�s��x�|���p��}k�T�DpE@W� ��]k`1� ���Yb ��0l��*n0��"~zBd�~u�7�0Bl��0-�x~|U�U0 �h�*HS�|��e"#"?vp�i`e6^�+q��`m8 #V�� ��VS|`��"m"сSn|@:U���~`pb�G�ED����2F�I�? >�x� R� ��%~jx��<�a�9ij�2�D��&: Z`�]w���:�6��B�7eFJ|�ҧ�,���FǮcS�ʶ+B�,�ܺN���>PAD�HD��~���n��}�#�� Q��S���2�X�{�k�lQ�2�����w�|2� h9��G�,m���3��6-��E�L��I�³*K���q�`DwV�QXS��peS��� qܧTS����R�u �<�a�*At�lmE� � ��N[P1�ۦ��$��@`��Dpy�yXvCAy�B`}D� 0QwG#� �a[^�� $���Ǧ{L�"[��K�g�;�S~��GX.�goT.��ư��x���?1z��x~:�g�|�L� ��S`��0S]P�^p F<""�?!,�!N4&P� ����:T�@h�9%t��:�-~�I<`�9p I&.)^ 40D#p@�j4�ج:�01��rܼF2oW�#Z ;$Q q  �K��Nl#29 !F@�Bh�ᏬL!XF�LHKh�.�hE&J�G��<"WN!�����Y@� >R~19J"�2,/ &.GXB%�R�9B6�W]���W�I�$��9�RE8Y� ��"�A5�Q.axB�&ة�J�! �t)K%tS-�JF b�NMxL��)�R��"���6O!TH�H� 0 !� ) , =( &AXKgNgYvYxR"k\%wh&h}h%�g+�s%r.x3�x�}9��&��+�R,�!7�0%� (�.��5��&�a)��;�"&ף*Ȳ)ׯ7׻4�3��6�H֧KͻH�T��Y��q��h� ��pH,�Ȥr�l:xШtJ�Z�جv��z��xL.:��z�n���|N�����~�������& !�0`9R�}��"�"a:S�~x��������g �� E$����� � ����$E$��"��D� � ������R��C��� E ��H�M��G�D� �B��ϾD��a��`1r��Ӑ�� �o~�zU!L�C'�yW�UGt����ll�0���uG�)A�s[��x� �xO%��X2�  P�n:R/��aHae+�Dm?# ǣ6�8�J�x�Di�M���j���5oQ7�- <! *�l��R2r/a!l)d� A"�E���� &� ;��c �%����b��pe~C"B���H�eF2��`8qb�t_`ur`e� w�u3��Pv�h""�`�Íx�LĹ��3� �~ֺ�:���MDfJ� �۵�W�%�S�X �؁)�@��:E��w�u�Sxb8y\m�zS��Zb�E�L��w!y(>�"w�=�|��s�d �C�W)H�cC$�L �7r.�\{)@�`@ �X�$PD `aaG:���O�72E�amn]�"Rc�x�R� &dR8`g��i�xLR!�P &d����T���i�|�_ � Qi�#�`g:��:noM� :V �)p����W&a=�e�k� j���1߲s�x�W�jal|0��B0�, \j۴:6���C ��W��|��9���zĸV {�;��n��V�m�I��.��PN� ����C��+��By�ѾHŸ:��� 7�Y�FTk�SaoaY$D�S���29R�kt� ��f� ��:��Sp�3�I��DZ� �9���g��u�*3)O��[_hv ,���Et x�BH� �[��64M@�S�M7d�l�ܶ5-��U܍��z�R3Ԭ3~ ��P��5�g: ���kN�&0�j4���#{��3S�2�K�'ợl���2K{� {۶?~m𸧠�I�nE�='����^���_�=��~�#O���'���o..�Y�n��CSO��a��K��o,���b�����{�C�� "�{�K ��w��Ozdը�:$ ���v�] A#� ���a�z)Rx׿ƥ�d``�w-�y�f�K!����|��P��=�`�(f��'Pa ��BJa%��f�%`�}F����6>��`G"�}�=�!o`�^FP�ةQ�C���`(�}\�ݮ ��$<��n@dĠE#��U�I�!� #l��9`k���'Rr��Z�NB�MF �[�+9���-�wj���8�r� ,V�h"�|�S=�G_��"E� 0i*%̲��da0mVk�):;&6p>�jK ��# �D�:�c?:R Ӭf��I-�"�<�="��7�3S��c2RW ,�8(T"P0F¡Jh�" ; 403WebShell
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Current File : /bin/autoreconf
#! /usr/bin/perl -w
# -*- perl -*-
# Generated from autoreconf.in; do not edit by hand.

eval 'case $# in 0) exec /usr/bin/perl -S "$0";; *) exec /usr/bin/perl -S "$0" "$@";; esac'
    if 0;

# autoreconf - install the GNU Build System in a directory tree
# Copyright (C) 1994, 1999-2012 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
# (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 <http://www.gnu.org/licenses/>.

# Written by David J. MacKenzie.
# Extended and rewritten in Perl by Akim Demaille.

BEGIN
{
  my $pkgdatadir = $ENV{'autom4te_perllibdir'} || '/usr/share/autoconf';
  unshift @INC, $pkgdatadir;

  # Override SHELL.  On DJGPP SHELL may not be set to a shell
  # that can handle redirection and quote arguments correctly,
  # e.g.: COMMAND.COM.  For DJGPP always use the shell that configure
  # has detected.
  $ENV{'SHELL'} = '/bin/sh' if ($^O eq 'dos');
}

use Autom4te::ChannelDefs;
use Autom4te::Channels;
use Autom4te::Configure_ac;
use Autom4te::FileUtils;
use Autom4te::General;
use Autom4te::XFile;
# Do not use Cwd::chdir, since it might hang.
use Cwd 'cwd';
use strict;

## ----------- ##
## Variables.  ##
## ----------- ##

# $HELP
# -----
$help = "Usage: $0 [OPTION]... [DIRECTORY]...

Run `autoconf' (and `autoheader', `aclocal', `automake', `autopoint'
(formerly `gettextize'), and `libtoolize' where appropriate)
repeatedly to remake the GNU Build System files in specified
DIRECTORIES and their subdirectories (defaulting to `.').

By default, it only remakes those files that are older than their
sources.  If you install new versions of the GNU Build System,
you can make `autoreconf' remake all of the files by giving it the
`--force' option.

Operation modes:
  -h, --help               print this help, then exit
  -V, --version            print version number, then exit
  -v, --verbose            verbosely report processing
  -d, --debug              don't remove temporary files
  -f, --force              consider all files obsolete
  -i, --install            copy missing auxiliary files
      --no-recursive       don't rebuild sub-packages
  -s, --symlink            with -i, install symbolic links instead of copies
  -m, --make               when applicable, re-run ./configure && make
  -W, --warnings=CATEGORY  report the warnings falling in CATEGORY [syntax]

" . Autom4te::ChannelDefs::usage . "

The environment variable \`WARNINGS\' is honored.  Some subtools might
support other warning types, using \`all' is encouraged.

Library directories:
  -B, --prepend-include=DIR  prepend directory DIR to search path
  -I, --include=DIR          append directory DIR to search path

The environment variables AUTOM4TE, AUTOCONF, AUTOHEADER, AUTOMAKE,
ACLOCAL, AUTOPOINT, LIBTOOLIZE, M4, and MAKE are honored.

Report bugs to <bug-autoconf\@gnu.org>.
GNU Autoconf home page: <http://www.gnu.org/software/autoconf/>.
General help using GNU software: <http://www.gnu.org/gethelp/>.
";

# $VERSION
# --------
$version = "autoreconf (GNU Autoconf) 2.69
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+/Autoconf: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>, <http://gnu.org/licenses/exceptions.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by David J. MacKenzie and Akim Demaille.
";

# Lib files.
my $autoconf   = $ENV{'AUTOCONF'}   || '/usr/bin/autoconf';
my $autoheader = $ENV{'AUTOHEADER'} || '/usr/bin/autoheader';
my $autom4te   = $ENV{'AUTOM4TE'}   || '/usr/bin/autom4te';
my $automake   = $ENV{'AUTOMAKE'}   || 'automake';
my $aclocal    = $ENV{'ACLOCAL'}    || 'aclocal';
my $libtoolize = $ENV{'LIBTOOLIZE'} || 'libtoolize';
my $autopoint  = $ENV{'AUTOPOINT'}  || 'autopoint';
my $make       = $ENV{'MAKE'}       || 'make';

# --install -- as --add-missing in other tools.
my $install = 0;
# symlink -- when --install, use symlinks instead.
my $symlink = 0;
# Does aclocal support --force?
my $aclocal_supports_force = 0;
# Does aclocal support -Wfoo?
my $aclocal_supports_warnings = 0;
# Does automake support --force-missing?
my $automake_supports_force_missing = 0;
# Does automake support -Wfoo?
my $automake_supports_warnings = 0;

my @prepend_include;
my @include;

# List of command line warning requests.
my @warning;

# Rerun `./configure && make'?
my $run_make = 0;

# Recurse into subpackages
my $recursive = 1;

## ---------- ##
## Routines.  ##
## ---------- ##


# parse_args ()
# -------------
# Process any command line arguments.
sub parse_args ()
{
  my $srcdir;

  getopt ("W|warnings=s"         => \@warning,
	  'I|include=s'          => \@include,
	  'B|prepend-include=s'	 => \@prepend_include,
	  'i|install'            => \$install,
	  's|symlink'            => \$symlink,
	  'm|make'               => \$run_make,
	  'recursive!'           => \$recursive);

  # Split the warnings as a list of elements instead of a list of
  # lists.
  @warning = map { split /,/ } @warning;
  parse_WARNINGS;
  parse_warnings '--warnings', @warning;

  # Even if the user specified a configure.ac, trim to get the
  # directory, and look for configure.ac again.  Because (i) the code
  # is simpler, and (ii) we are still able to diagnose simultaneous
  # presence of configure.ac and configure.in.
  @ARGV = map { /configure\.(ac|in)$/ ? dirname ($_) : $_ } @ARGV;
  push @ARGV, '.' unless @ARGV;

  if ($verbose && $debug)
    {
      for my $prog ($autoconf, $autoheader,
		    $automake, $aclocal,
		    $autopoint,
		    $libtoolize)
	{
	  xsystem ("$prog --version | sed 1q >&2");
	  print STDERR "\n";
	}
    }

  my $aclocal_help = `$aclocal --help 2>/dev/null`;
  my $automake_help = `$automake --help 2>/dev/null`;
  $aclocal_supports_force = $aclocal_help =~ /--force/;
  $aclocal_supports_warnings = $aclocal_help =~ /--warnings/;
  $automake_supports_force_missing = $automake_help =~ /--force-missing/;
  $automake_supports_warnings = $automake_help =~ /--warnings/;

  # Dispatch autoreconf's option to the tools.
  # --include;
  $aclocal    .= join (' -I ', '', map { shell_quote ($_) } @include);
  $autoconf   .= join (' --include=', '', map { shell_quote ($_) } @include);
  $autoconf   .= join (' --prepend-include=', '', map { shell_quote ($_) } @prepend_include);
  $autoheader .= join (' --include=', '', map { shell_quote ($_) } @include);
  $autoheader .= join (' --prepend-include=', '', map { shell_quote ($_) } @prepend_include);

  # --install and --symlink;
  if ($install)
    {
      $automake   .= ' --add-missing';
      $automake   .= ' --copy' unless $symlink;
      $libtoolize .= ' --copy' unless $symlink;
    }
  # --force;
  if ($force)
    {
      $aclocal    .= ' --force'
	if $aclocal_supports_force;
      $autoconf   .= ' --force';
      $autoheader .= ' --force';
      $automake   .= ' --force-missing'
	if $automake_supports_force_missing;
      $autopoint  .= ' --force';
      $libtoolize .= ' --force';
    }
  else
    {
      # The implementation of --no-force is bogus in all implementations
      # of Automake up to 1.8, so we avoid it in these cases.  (Automake
      # 1.8 is the first version where aclocal supports force, hence
      # the condition.)
      $automake .= ' --no-force'
	if $aclocal_supports_force;
    }
  # --verbose --verbose or --debug;
  if ($verbose > 1 || $debug)
    {
      $autoconf   .= ' --verbose';
      $autoheader .= ' --verbose';
      $automake   .= ' --verbose';
      $aclocal    .= ' --verbose';
    }
  if ($debug)
    {
      $autoconf   .= ' --debug';
      $autoheader .= ' --debug';
      $libtoolize .= ' --debug';
    }
  # --warnings;
  if (@warning)
    {
      my $warn = ' --warnings=' . join (',', @warning);
      $autoconf   .= $warn;
      $autoheader .= $warn;
      $automake   .= $warn
	if $automake_supports_warnings;
      $aclocal    .= $warn
        if $aclocal_supports_warnings;
    }
}


# &run_aclocal ($ACLOCAL, $FLAGS)
# -------------------------------
# Update aclocal.m4 as lazily as possible, as aclocal pre-1.8 always
# overwrites aclocal.m4, hence triggers autoconf, autoheader, automake
# etc. uselessly.  aclocal 1.8+ does not need this.
sub run_aclocal ($$)
{
  my ($aclocal, $flags) = @_;

  # aclocal 1.8+ does all this for free.  It can be recognized by its
  # --force support.
  if ($aclocal_supports_force)
    {
      xsystem ("$aclocal $flags");
    }
  else
    {
      xsystem ("$aclocal $flags --output=aclocal.m4t");
      # aclocal may produce no output.
      if (-f 'aclocal.m4t')
	{
	  update_file ('aclocal.m4t', 'aclocal.m4');
	  # Make sure that the local m4 files are older than
	  # aclocal.m4.
	  #
	  # Why is not always the case?  Because we already run
	  # aclocal at first (before tracing), which, for instance,
	  # can find Gettext's macros in .../share/aclocal, so we may
	  # have had the right aclocal.m4 already.  Then autopoint is
	  # run, and installs locally these M4 files.  Then
	  # autoreconf, via update_file, sees it is the _same_
	  # aclocal.m4, and doesn't change its timestamp.  But later,
	  # Automake's Makefile expresses that aclocal.m4 depends on
	  # these local files, which are newer, so it triggers aclocal
	  # again.
	  #
	  # To make sure aclocal.m4 is no older, we change the
	  # modification times of the local M4 files to be not newer
	  # than it.
	  #
	  # First, where are the local files?
	  my $aclocal_local_dir = '.';
	  if ($flags =~ /-I\s+(\S+)/)
	    {
	      $aclocal_local_dir = $1;
	    }
	  # All the local files newer than aclocal.m4 are to be
	  # made not newer than it.
	  my $aclocal_m4_mtime = mtime ('aclocal.m4');
	  for my $file (glob ("$aclocal_local_dir/*.m4"), 'acinclude.m4')
	    {
	      if ($aclocal_m4_mtime < mtime ($file))
		{
		  debug "aging $file to be not newer than aclocal.m4";
		  utime $aclocal_m4_mtime, $aclocal_m4_mtime, $file;
		}
	    }
	}
    }
}

# &autoreconf_current_directory
# -----------------------------
sub autoreconf_current_directory ()
{
  my $configure_ac = find_configure_ac;

  # ---------------------- #
  # Is it using Autoconf?  #
  # ---------------------- #

  my $uses_autoconf;
  my $uses_gettext;
  if (-f $configure_ac)
    {
      my $configure_ac_file = new Autom4te::XFile "< $configure_ac";
      while ($_ = $configure_ac_file->getline)
	{
	  s/#.*//;
	  s/dnl.*//;
	  $uses_autoconf = 1 if /AC_INIT/;
	  # See below for why we look for gettext here.
	  $uses_gettext = 1  if /^AM_GNU_GETTEXT_VERSION/;
	}
    }
  if (!$uses_autoconf)
    {
      verb "$configure_ac: not using Autoconf";
      return;
    }


  # ------------------- #
  # Running autopoint.  #
  # ------------------- #

  # Gettext is a bit of a problem: its macros are not necessarily
  # visible to aclocal, so if we start with a completely striped down
  # package (think of a fresh CVS checkout), running `aclocal' first
  # will fail: the Gettext macros are missing.
  #
  # Therefore, we can't use the traces to decide if we use Gettext or
  # not.  I guess that once Gettext move to 2.5x we will be able to,
  # but in the meanwhile forget it.
  #
  # We can only grep for AM_GNU_GETTEXT_VERSION in configure.ac.  You
  # might think this approach is naive, and indeed it is, as it
  # prevents one to embed AM_GNU_GETTEXT_VERSION in another *.m4, but
  # anyway we don't limit the generality, since... that's what
  # autopoint does.  Actually, it is even more restrictive, as it
  # greps for `^AM_GNU_GETTEXT_VERSION('.  We did this above, while
  # scanning configure.ac.
  if (!$uses_gettext)
    {
      verb "$configure_ac: not using Gettext";
    }
  elsif (!$install)
    {
      verb "$configure_ac: not running autopoint: --install not given";
    }
  else
    {
      xsystem_hint ("autopoint is needed because this package uses Gettext", "$autopoint");
    }


  # ----------------- #
  # Running aclocal.  #
  # ----------------- #

  # Run it first: it might discover new macros to add, e.g.,
  # AC_PROG_LIBTOOL, which we will trace later to see if Libtool is
  # used.
  #
  # Always run it.  Tracking its sources for up-to-dateness is too
  # complex and too error prone.  The best we can do is avoiding
  # nuking the time stamp.
  my $uses_aclocal = 1;

  # Nevertheless, if aclocal.m4 exists and is not made by aclocal,
  # don't run aclocal.

  if (-f 'aclocal.m4')
    {
      my $aclocal_m4 = new Autom4te::XFile 'aclocal.m4';
      $_ = $aclocal_m4->getline;
      $uses_aclocal = 0
	unless defined ($_) && /generated.*by aclocal/;
    }

  # If there are flags for aclocal in Makefile.am, use them.
  my $aclocal_flags = '';
  if ($uses_aclocal && -f 'Makefile.am')
    {
      my $makefile = new Autom4te::XFile 'Makefile.am';
      while ($_ = $makefile->getline)
	{
	  if (/^ACLOCAL_[A-Z_]*FLAGS\s*=\s*(.*)/)
	    {
	      $aclocal_flags = $1;
	      last;
	    }
	}
    }

  if (!$uses_aclocal)
    {
      verb "$configure_ac: not using aclocal";
    }
  else
    {
      # Some file systems have sub-second time stamps, and if so we may
      # run into trouble later, after we rerun autoconf and set the
      # time stamps of input files to be no greater than aclocal.m4,
      # because the time-stamp-setting operation (utime) has a
      # resolution of only 1 second.  Work around the problem by
      # ensuring that there is at least a one-second window before the
      # time stamp of aclocal.m4t in which no file time stamps can
      # fall.
      sleep 1;

      run_aclocal ($aclocal, $aclocal_flags);
    }

  # We might have to rerun aclocal if Libtool (or others) imports new
  # macros.
  my $rerun_aclocal = 0;



  # ------------------------------- #
  # See what tools will be needed.  #
  # ------------------------------- #

  # Perform a single trace reading to avoid --force forcing a rerun
  # between two --trace, that's useless.  If there is no AC_INIT, then
  # we are not interested: it looks like a Cygnus thingy.
  my $aux_dir;
  my $uses_gettext_via_traces;
  my $uses_libtool;
  my $uses_libltdl;
  my $uses_autoheader;
  my $uses_automake;
  my @subdir;
  verb "$configure_ac: tracing";
  my $traces = new Autom4te::XFile
    ("$autoconf"
     . join (' ',
	     map { ' --trace=' . $_ . ':\$n::\${::}%' }
	     # If you change this list, update the
	     # `Autoreconf-preselections' section of autom4te.in.
	     'AC_CONFIG_AUX_DIR',
	     'AC_CONFIG_HEADERS',
	     'AC_CONFIG_SUBDIRS',
	     'AC_INIT',
	     'AC_PROG_LIBTOOL',
	     'LT_INIT',
	     'LT_CONFIG_LTDL_DIR',
	     'AM_GNU_GETTEXT',
	     'AM_INIT_AUTOMAKE',
	    )
     . ' |');
  while ($_ = $traces->getline)
    {
      chomp;
      my ($macro, @args) = split (/::/);
      $aux_dir = $args[0]           if $macro eq "AC_CONFIG_AUX_DIR";
      $uses_autoconf = 1            if $macro eq "AC_INIT";
      $uses_gettext_via_traces = 1  if $macro eq "AM_GNU_GETTEXT";
      $uses_libtool = 1             if $macro eq "AC_PROG_LIBTOOL"
                                       || $macro eq "LT_INIT";
      $uses_libltdl = 1             if $macro eq "LT_CONFIG_LTDL_DIR";
      $uses_autoheader = 1          if $macro eq "AC_CONFIG_HEADERS";
      $uses_automake = 1            if $macro eq "AM_INIT_AUTOMAKE";
      push @subdir, split (' ', $args[0])
                                    if $macro eq "AC_CONFIG_SUBDIRS" && $recursive;
    }

  # The subdirs are *optional*, they may not exist.
  foreach (@subdir)
    {
      if (-d)
	{
	  verb "$configure_ac: adding subdirectory $_ to autoreconf";
	  autoreconf ($_);
	}
      else
	{
	  verb "$configure_ac: subdirectory $_ not present";
	}
    }

  # Gettext consistency checks...
  error "$configure_ac: AM_GNU_GETTEXT is used, but not AM_GNU_GETTEXT_VERSION"
    if $uses_gettext_via_traces && ! $uses_gettext;
  error "$configure_ac: AM_GNU_GETTEXT_VERSION is used, but not AM_GNU_GETTEXT"
    if $uses_gettext && ! $uses_gettext_via_traces;


  # ---------------------------- #
  # Setting up the source tree.  #
  # ---------------------------- #

  # libtoolize, automake --add-missing etc. will drop files in the
  # $AUX_DIR.  But these tools fail to install these files if the
  # directory itself does not exist, which valid: just imagine a CVS
  # repository with hand written code only (there is not even a need
  # for a Makefile.am!).

  if (defined $aux_dir && ! -d $aux_dir)
    {
      verb "$configure_ac: creating directory $aux_dir";
      mkdir $aux_dir, 0755
	or error "cannot create $aux_dir: $!";
    }


  # -------------------- #
  # Running libtoolize.  #
  # -------------------- #

  if (!$uses_libtool)
    {
      verb "$configure_ac: not using Libtool";
    }
  elsif ($install)
    {
      if ($uses_libltdl)
	{
	  $libtoolize .= " --ltdl";
	}
      xsystem_hint ("libtoolize is needed because this package uses Libtool", $libtoolize);
      $rerun_aclocal = 1;
    }
  else
    {
      verb "$configure_ac: not running libtoolize: --install not given";
    }



  # ------------------- #
  # Rerunning aclocal.  #
  # ------------------- #

  # If we re-installed Libtool or Gettext, the macros might have changed.
  # Automake also needs an up-to-date aclocal.m4.
  if ($rerun_aclocal)
    {
      if (!$uses_aclocal)
	{
	  verb "$configure_ac: not using aclocal";
	}
      else
	{
	  run_aclocal ($aclocal, $aclocal_flags);
	}
    }


  # ------------------ #
  # Running autoconf.  #
  # ------------------ #

  # Don't try to be smarter than `autoconf', which does its own up to
  # date checks.
  #
  # We prefer running autoconf before autoheader, because (i) the
  # latter runs the former, and (ii) autoconf is stricter than
  # autoheader.  So all in all, autoconf should give better error
  # messages.
  xsystem ($autoconf);


  # -------------------- #
  # Running autoheader.  #
  # -------------------- #

  # We now consider that if AC_CONFIG_HEADERS is used, then autoheader
  # is used too.
  #
  # Just as for autoconf, up to date ness is performed by the tool
  # itself.
  #
  # Run it before automake, since the latter checks the presence of
  # config.h.in when it sees an AC_CONFIG_HEADERS.
  if (!$uses_autoheader)
    {
      verb "$configure_ac: not using Autoheader";
    }
  else
    {
      xsystem ($autoheader);
    }


  # ------------------ #
  # Running automake.  #
  # ------------------ #

  if (!$uses_automake)
    {
      verb "$configure_ac: not using Automake";
    }
  else
    {
      # We should always run automake, and let it decide whether it shall
      # update the file or not.  In fact, the effect of `$force' is already
      # included in `$automake' via `--no-force'.
      xsystem ($automake);
    }


  # -------------- #
  # Running make.  #
  # -------------- #

  if ($run_make)
    {
      if (!-f "config.status")
	{
	  verb "no config.status: cannot re-make";
	}
      else
	{
	  xsystem ("./config.status --recheck");
	  xsystem ("./config.status");
	  if (!-f "Makefile")
	    {
	      verb "no Makefile: cannot re-make";
	    }
	  else
	    {
	      xsystem ("$make");
	    }
	}
    }
}


# &autoreconf ($DIRECTORY)
# ------------------------
# Reconf the $DIRECTORY.
sub autoreconf ($)
{
  my ($directory) = @_;
  my $cwd = cwd;

  # The format for this message is not free: taken from Emacs, itself
  # using GNU Make's format.
  verb "Entering directory `$directory'";
  chdir $directory
    or error "cannot chdir to $directory: $!";

  autoreconf_current_directory;

  # The format is not free: taken from Emacs, itself using GNU Make's
  # format.
  verb "Leaving directory `$directory'";
  chdir $cwd
    or error "cannot chdir to $cwd: $!";
}


## ------ ##
## Main.  ##
## ------ ##

# When debugging, it is convenient that all the related temporary
# files be at the same place.
mktmpdir ('ar');
$ENV{'TMPDIR'} = $tmp;
parse_args;

# Autoreconf all the given configure.ac.  Unless `--no-recursive' is passed,
# AC_CONFIG_SUBDIRS will be traversed in &autoreconf_current_directory.
$ENV{'AUTOM4TE'} = $autom4te;
for my $directory (@ARGV)
  {
    require_configure_ac ($directory);
    autoreconf ($directory);
  }

### Setup "GNU" style for perl-mode and cperl-mode.
## Local Variables:
## perl-indent-level: 2
## perl-continued-statement-offset: 2
## perl-continued-brace-offset: 0
## perl-brace-offset: 0
## perl-brace-imaginary-offset: 0
## perl-label-offset: -2
## cperl-indent-level: 2
## cperl-brace-offset: 0
## cperl-continued-brace-offset: 0
## cperl-label-offset: -2
## cperl-extra-newline-before-brace: t
## cperl-merge-trailing-else: nil
## cperl-continued-statement-offset: 2
## End:

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