Gecko [ www.utparral.edu.mx ]

Name	Size	Permission
X11	[ DIR ]	drwxr-xr-x
aclocal-1.16	35.18 KB	-rwxr-xr-x
appstreamcli	118.23 KB	-rwxr-xr-x
appstream-compose	26.3 KB	-rwxr-xr-x
appstream-util	98.3 KB	-rwxr-xr-x
autoconf	14.85 KB	-rwxr-xr-x
autoheader	8.82 KB	-rwxr-xr-x
autom4te	32.69 KB	-rwxr-xr-x
automake-1.16	255.91 KB	-rwxr-xr-x
autoreconf	26.3 KB	-rwxr-xr-x
autoscan	16.77 KB	-rwxr-xr-x
autoupdate	33.22 KB	-rwxr-xr-x
broadwayd	130.21 KB	-rwxr-xr-x
bwrap	70.47 KB	-rwxr-xr-x
c89-gcc	428 B	-rwxr-xr-x
c99-gcc	454 B	-rwxr-xr-x
cairo-trace	2.95 KB	-rwxr-xr-x
canberra-gtk-play	18.2 KB	-rwxr-xr-x
corelist	15.01 KB	-rwxr-xr-x
cpan	8.16 KB	-rwxr-xr-x
cpan5.34-x86_64-linux-gnu	8.18 KB	-rwxr-xr-x
curl-config	6.52 KB	-rwxr-xr-x
dazzle-list-counters	14.13 KB	-rwxr-xr-x
debconf	2.79 KB	-rwxr-xr-x
debconf-apt-progress	11.27 KB	-rwxr-xr-x
debconf-communicate	608 B	-rwxr-xr-x
debconf-copydb	1.68 KB	-rwxr-xr-x
debconf-escape	647 B	-rwxr-xr-x
debconf-set-selections	2.92 KB	-rwxr-xr-x
debconf-show	1.78 KB	-rwxr-xr-x
derb	26.88 KB	-rwxr-xr-x
desktop-file-edit	96.44 KB	-rwxr-xr-x
desktop-file-install	96.44 KB	-rwxr-xr-x
desktop-file-validate	76.69 KB	-rwxr-xr-x
dh_autotools-dev_restoreconfig	1.79 KB	-rwxr-xr-x
dh_autotools-dev_updateconfig	1.81 KB	-rwxr-xr-x
dh_girepository	12.88 KB	-rwxr-xr-x
dumpsexp	18.3 KB	-rwxr-xr-x
enc2xs	40.84 KB	-rwxr-xr-x
encguess	3.01 KB	-rwxr-xr-x
envsubst	34.38 KB	-rwxr-xr-x
fc-cache	22.23 KB	-rwxr-xr-x
fc-cat	18.23 KB	-rwxr-xr-x
fc-conflist	14.23 KB	-rwxr-xr-x
fc-list	14.23 KB	-rwxr-xr-x
fc-match	14.23 KB	-rwxr-xr-x
fc-pattern	14.23 KB	-rwxr-xr-x
fc-query	14.23 KB	-rwxr-xr-x
fc-scan	14.23 KB	-rwxr-xr-x
fc-validate	14.23 KB	-rwxr-xr-x
file	26.56 KB	-rwxr-xr-x
fribidi	26.99 KB	-rwxr-xr-x
gapplication	22.21 KB	-rwxr-xr-x
gdbus	54.21 KB	-rwxr-xr-x
gdbus-codegen	1.99 KB	-rwxr-xr-x
gdk-pixbuf-csource	14.15 KB	-rwxr-xr-x
gdk-pixbuf-pixdata	14.13 KB	-rwxr-xr-x
gdk-pixbuf-thumbnailer	18.21 KB	-rwxr-xr-x
genbrk	14.78 KB	-rwxr-xr-x
gencat	26.37 KB	-rwxr-xr-x
gencfu	14.73 KB	-rwxr-xr-x
gencnval	26.61 KB	-rwxr-xr-x
gendict	26.78 KB	-rwxr-xr-x
genrb	147.91 KB	-rwxr-xr-x
getconf	34.29 KB	-rwxr-xr-x
getent	38.65 KB	-rwxr-xr-x
gettext	34.38 KB	-rwxr-xr-x
gettextize	41.28 KB	-rwxr-xr-x
gettext.sh	5.07 KB	-rwxr-xr-x
gio	102.23 KB	-rwxr-xr-x
gio-querymodules	18.13 KB	-rwxr-xr-x
gjs	26.7 KB	-rwxr-xr-x
gjs-console	26.7 KB	-rwxr-xr-x
glib-compile-schemas	66.21 KB	-rwxr-xr-x
gobject-query	14.14 KB	-rwxr-xr-x
gpg-error-config	2.04 KB	-rwxr-xr-x
gpgrt-config	13.11 KB	-rwxr-xr-x
gresource	26.13 KB	-rwxr-xr-x
gsettings	30.21 KB	-rwxr-xr-x
gsound-play	18.21 KB	-rwxr-xr-x
gtk4-broadwayd	150.22 KB	-rwxr-xr-x
gtk4-encode-symbolic-svg	8.58 MB	-rwxr-xr-x
gtk4-launch	18.29 KB	-rwxr-xr-x
gtk4-query-settings	14.13 KB	-rwxr-xr-x
gtk4-rendernode-tool	30.13 KB	-rwxr-xr-x
gtk-encode-symbolic-svg	22.24 KB	-rwxr-xr-x
gtk-launch	18.29 KB	-rwxr-xr-x
gtk-query-settings	14.13 KB	-rwxr-xr-x
gtk-update-icon-cache	38.57 KB	-rwxr-xr-x
hb-info	54.21 KB	-rwxr-xr-x
hb-ot-shape-closure	46.21 KB	-rwxr-xr-x
hb-shape	50.21 KB	-rwxr-xr-x
hb-subset	46.18 KB	-rwxr-xr-x
hb-view	82.35 KB	-rwxr-xr-x
hmac256	18.7 KB	-rwxr-xr-x
iconv	66.41 KB	-rwxr-xr-x
icuexportdata	30.98 KB	-rwxr-xr-x
icuinfo	14.62 KB	-rwxr-xr-x
ifnames	4.08 KB	-rwxr-xr-x
instmodsh	4.27 KB	-rwxr-xr-x
ispell-wrapper	7.05 KB	-rwxr-xr-x
itstool	67.8 KB	-rwxr-xr-x
js102	28.97 MB	-rwxr-xr-x
js102-config	2.03 KB	-rwxr-xr-x
json-glib-format	18.38 KB	-rwxr-xr-x
json-glib-validate	14.24 KB	-rwxr-xr-x
json_pp	4.88 KB	-rwxr-xr-x
ldd	5.32 KB	-rwxr-xr-x
libgcrypt-config	4.52 KB	-rwxr-xr-x
libinput	62.35 KB	-rwxr-xr-x
libnetcfg	15.41 KB	-rwxr-xr-x
libpng16-config	2.41 KB	-rwxr-xr-x
libpng-config	2.41 KB	-rwxr-xr-x
libtool	366.5 KB	-rwxr-xr-x
libtoolize	128.35 KB	-rwxr-xr-x
libwacom-list-devices	14.24 KB	-rwxr-xr-x
libwacom-list-local-devices	18.29 KB	-rwxr-xr-x
libwacom-show-stylus	5.99 KB	-rwxr-xr-x
libwacom-update-db	8.99 KB	-rwxr-xr-x
locale	57.56 KB	-rwxr-xr-x
localedef	326.96 KB	-rwxr-xr-x
lzmainfo	14.23 KB	-rwxr-xr-x
m4	154.37 KB	-rwxr-xr-x
makeconv	50.89 KB	-rwxr-xr-x
mako-render	961 B	-rwxr-xr-x
markdown_py	973 B	-rwxr-xr-x
mpicalc	22.3 KB	-rwxr-xr-x
msgattrib	26.38 KB	-rwxr-xr-x
msgcat	26.38 KB	-rwxr-xr-x
msgcmp	26.38 KB	-rwxr-xr-x
msgcomm	26.38 KB	-rwxr-xr-x
msgconv	22.38 KB	-rwxr-xr-x
msgen	22.38 KB	-rwxr-xr-x
msgexec	22.38 KB	-rwxr-xr-x
msgfilter	34.38 KB	-rwxr-xr-x
msgfmt	82.59 KB	-rwxr-xr-x
msggrep	114.46 KB	-rwxr-xr-x
msginit	66.39 KB	-rwxr-xr-x
msgmerge	74.41 KB	-rwxr-xr-x
msgunfmt	34.39 KB	-rwxr-xr-x
msguniq	22.38 KB	-rwxr-xr-x
ngettext	34.38 KB	-rwxr-xr-x
nspr-config	2.58 KB	-rwxr-xr-x
nss-config	2.31 KB	-rwxr-xr-x
p11-kit	170.45 KB	-rwxr-xr-x
pango-list	18.13 KB	-rwxr-xr-x
pango-segmentation	18.21 KB	-rwxr-xr-x
pango-view	66.42 KB	-rwxr-xr-x
pcre2-config	1.93 KB	-rwxr-xr-x
pcre-config	2.29 KB	-rwxr-xr-x
pdfattach	22.21 KB	-rwxr-xr-x
pdfdetach	26.32 KB	-rwxr-xr-x
pdffonts	22.33 KB	-rwxr-xr-x
pdfimages	42.33 KB	-rwxr-xr-x
pdfinfo	62.33 KB	-rwxr-xr-x
pdfseparate	22.21 KB	-rwxr-xr-x
pdfsig	42.6 KB	-rwxr-xr-x
pdftocairo	190.3 KB	-rwxr-xr-x
pdftohtml	118.23 KB	-rwxr-xr-x
pdftoppm	34.24 KB	-rwxr-xr-x
pdftops	34.34 KB	-rwxr-xr-x
pdftotext	50.34 KB	-rwxr-xr-x
pdfunite	34.21 KB	-rwxr-xr-x
perl5.34-x86_64-linux-gnu	14.3 KB	-rwxr-xr-x
perlbug	44.12 KB	-rwxr-xr-x
perldoc	125 B	-rwxr-xr-x
perlivp	10.61 KB	-rwxr-xr-x
perlthanks	44.12 KB	-rwxr-xr-x
piconv	8.16 KB	-rwxr-xr-x
pip	225 B	-rwxr-xr-x
pip3	225 B	-rwxr-xr-x
pip3.10	225 B	-rwxr-xr-x
pipewire	14.38 KB	-rwxr-xr-x
pkgdata	43.53 KB	-rwxr-xr-x
pldd	22.37 KB	-rwxr-xr-x
pod2html	4.04 KB	-rwxr-xr-x
pod2man	14.68 KB	-rwxr-xr-x
pod2text	10.55 KB	-rwxr-xr-x
pod2usage	4.01 KB	-rwxr-xr-x
podchecker	3.57 KB	-rwxr-xr-x
psl	22.16 KB	-rwxr-xr-x
psl-make-dafsa	22.21 KB	-rwxr-xr-x
ptar	3.48 KB	-rwxr-xr-x
ptardiff	2.58 KB	-rwxr-xr-x
ptargrep	4.29 KB	-rwxr-xr-x
pw-cat	138.38 KB	-rwxr-xr-x
pw-cli	134.38 KB	-rwxr-xr-x
pw-dot	34.38 KB	-rwxr-xr-x
pw-dsdplay	138.38 KB	-rwxr-xr-x
pw-dump	94.38 KB	-rwxr-xr-x
pw-link	30.38 KB	-rwxr-xr-x
pw-loopback	18.38 KB	-rwxr-xr-x
pw-metadata	14.38 KB	-rwxr-xr-x
pw-mididump	34.38 KB	-rwxr-xr-x
pw-midiplay	138.38 KB	-rwxr-xr-x
pw-midirecord	138.38 KB	-rwxr-xr-x
pw-mon	90.42 KB	-rwxr-xr-x
pw-play	138.38 KB	-rwxr-xr-x
pw-profiler	26.38 KB	-rwxr-xr-x
pw-record	138.38 KB	-rwxr-xr-x
pw-reserve	26.38 KB	-rwxr-xr-x
pw-top	30.38 KB	-rwxr-xr-x
pw-v4l2	1.95 KB	-rwxr-xr-x
py3compile	12.89 KB	-rwxr-xr-x
py3versions	11.63 KB	-rwxr-xr-x
python3.10	5.67 MB	-rwxr-xr-x
recode-sr-latin	14.38 KB	-rwxr-xr-x
rsvg-convert	5.53 MB	-rwxr-xr-x
secret-tool	22.21 KB	-rwxr-xr-x
select-default-iwrap	474 B	-rwxr-xr-x
session-migration	22.15 KB	-rwxr-xr-x
shasum	9.75 KB	-rwxr-xr-x
spa-acp-tool	268.12 KB	-rwxr-xr-x
spa-inspect	78.48 KB	-rwxr-xr-x
spa-json-dump	14.3 KB	-rwxr-xr-x
spa-monitor	14.48 KB	-rwxr-xr-x
spa-resample	30.6 KB	-rwxr-xr-x
splain	18.96 KB	-rwxr-xr-x
streamzip	7.75 KB	-rwxr-xr-x
tzselect	15.02 KB	-rwxr-xr-x
uconv	54.83 KB	-rwxr-xr-x
unxz	82.52 KB	-rwxr-xr-x
update-desktop-database	22.38 KB	-rwxr-xr-x
update-mime-database	58.23 KB	-rwxr-xr-x
xdg-dbus-proxy	50.14 KB	-rwxr-xr-x
xdg-user-dir	234 B	-rwxr-xr-x
xdg-user-dirs-update	26.23 KB	-rwxr-xr-x
xml2-config	1.44 KB	-rwxr-xr-x
xmlcatalog	22.3 KB	-rwxr-xr-x
xmllint	78.95 KB	-rwxr-xr-x
xz	82.52 KB	-rwxr-xr-x
xzcat	82.52 KB	-rwxr-xr-x
xzcmp	6.86 KB	-rwxr-xr-x
xzdiff	6.86 KB	-rwxr-xr-x
xzegrep	5.87 KB	-rwxr-xr-x
xzfgrep	5.87 KB	-rwxr-xr-x
xzgrep	5.87 KB	-rwxr-xr-x
xzless	1.76 KB	-rwxr-xr-x
xzmore	2.11 KB	-rwxr-xr-x
zdump	26.21 KB	-rwxr-xr-x
zipdetails	58.66 KB	-rwxr-xr-x

Code Editor : autoscan

#! /usr/bin/perl
# -*- perl -*-
# Generated from bin/autoscan.in; do not edit by hand.

# autoscan - Create configure.scan (a preliminary configure.ac) for a package.
# Copyright (C) 1994, 1999-2017, 2020-2021 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 <https://www.gnu.org/licenses/>.

# Written by David MacKenzie <djm@gnu.ai.mit.edu>.

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

use 5.006;
use strict;
use warnings FATAL => 'all';

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 File::Basename;
use File::Find;

use Autom4te::ChannelDefs;
use Autom4te::Configure_ac;
use Autom4te::FileUtils;
use Autom4te::General;
use Autom4te::XFile;

my (@cfiles, @makefiles, @shfiles, @subdirs, %printed);

# The kind of the words we are looking for.
my @kinds = qw (function header identifier program
		makevar librarie);

# For each kind, the default macro.
my %generic_macro =
  (
   'function'   => 'AC_CHECK_FUNCS',
   'header'     => 'AC_CHECK_HEADERS',
   'identifier' => 'AC_CHECK_TYPES',
   'program'    => 'AC_CHECK_PROGS',
   'library'    => 'AC_CHECK_LIB'
  );

my %kind_comment =
  (
   'function'   => 'Checks for library functions.',
   'header'     => 'Checks for header files.',
   'identifier' => 'Checks for typedefs, structures, and compiler characteristics.',
   'program'    => 'Checks for programs.',
  );

# $USED{KIND}{ITEM} is the list of locations where the ITEM (of KIND) was
# used in the user package.
# For instance $USED{function}{alloca} is the list of 'file:line' where
# 'alloca (...)' appears.
my %used = ();

# $MACRO{KIND}{ITEM} is the list of macros to use to test ITEM.
# Initialized from lib/autoscan/*.  E.g., $MACRO{function}{alloca} contains
# the singleton AC_FUNC_ALLOCA.  Some require several checks.
my %macro = ();

# $NEEDED_MACROS{MACRO} is an array of locations requiring MACRO.
# E.g., $NEEDED_MACROS{AC_FUNC_ALLOC} the list of 'file:line' containing
# 'alloca (...)'.
my %needed_macros =
  (
   'AC_PREREQ' => [$me],
  );

my $log;

# Autoconf and lib files.
my $autom4te = $ENV{'AUTOM4TE'} || '/usr/bin/autom4te';
my $autoconf = "$autom4te --language=autoconf";
my @prepend_include;
my @include = ('/usr/share/autoconf');

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

Examine source files in the directory tree rooted at SRCDIR, or the
current directory if none is given.  Search the source files for
common portability problems, check for incompleteness of
'configure.ac', and create a file 'configure.scan' which is a
preliminary 'configure.ac' for that package.

-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

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

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

# $version
# --------
$version = "autoscan (GNU Autoconf) 2.71
Copyright (C) 2021 Free Software Foundation, Inc.
License GPLv3+/Autoconf: GNU GPL version 3 or later
<https://gnu.org/licenses/gpl.html>, <https://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.
";

## ------------------------ ##
## Command line interface.  ##
## ------------------------ ##

# parse_args ()
# -------------
# Process any command line arguments.
sub parse_args ()
{
  getopt ('I|include=s' => \@include,
	  'B|prepend-include=s' => \@prepend_include);

die "$me: too many arguments
Try '$me --help' for more information.\n"
    if @ARGV > 1;

my $srcdir = $ARGV[0] || ".";

verb "srcdir = $srcdir";
  chdir $srcdir || error "cannot cd to $srcdir: $!";
}

# init_tables ()
# --------------
# Put values in the tables of what to do with each token.
sub init_tables ()
{
  # The data file format supports only one line of macros per function.
  # If more than that is required for a common portability problem,
  # a new Autoconf macro should probably be written for that case,
  # instead of duplicating the code in lots of configure.ac files.
  my $file = find_file ("autoscan/autoscan.list",
			reverse (@prepend_include), @include);
  my $table = new Autom4te::XFile ($file, "<");
  my $tables_are_consistent = 1;

while ($_ = $table->getline)
    {
      # Ignore blank lines and comments.
      next
	if /^\s*$/ || /^\s*\#/;

# '<kind>: <word> <macro invocation>' or...
      # '<kind>: <word> warn: <message>'.
      if (/^(\S+):\s+(\S+)\s+(\S.*)$/)
	{
	  my ($kind, $word, $macro) = ($1, $2, $3);
	  error "$file:$.: invalid kind: $_"
	    unless grep { $_ eq $kind } @kinds;
	  push @{$macro{$kind}{$word}}, $macro;
	}
      else
	{
	  error "$file:$.: invalid definition: $_";
	}
    }

if ($debug)
    {
      foreach my $kind (@kinds)
	{
	  foreach my $word (sort keys %{$macro{$kind}})
	    {
	      print "$kind: $word: @{$macro{$kind}{$word}}\n";
	    }
	}

}
}

# used ($KIND, $WORD, [$WHERE])
# -----------------------------
# $WORD is used as a $KIND.
sub used ($$;$)
{
  my ($kind, $word, $where) = @_;
  $where ||= "$File::Find::name:$.";
  if (
      # Check for all the libraries.  But '-links' is certainly a
      # 'find' argument, and '-le', a 'test' argument.
      ($kind eq 'library' && $word !~ /^(e|inks)$/)
      # Other than libraries are to be checked only if listed in
      # the Autoscan library files.
      || defined $macro{$kind}{$word}
     )
    {
      push (@{$used{$kind}{$word}}, $where);
    }
}

## ----------------------- ##
## Scanning source files.  ##
## ----------------------- ##

# scan_c_file ($FILE-NAME)
# ------------------------
sub scan_c_file ($)
{
  my ($file_name) = @_;
  push @cfiles, $File::Find::name;

# Nonzero if in a multiline comment.
  my $in_comment = 0;

my $file = new Autom4te::XFile ($file_name, "<");

while ($_ = $file->getline)
    {
      # Strip out comments.
      if ($in_comment && s,^.*?\*/,,)
	{
	  $in_comment = 0;
	}
      # The whole line is inside a comment.
      next if $in_comment;
      # All on one line.
      s,/\*.*?\*/,,g;

# Starting on this line.
      if (s,/\*.*$,,)
	{
	  $in_comment = 1;
	}

# Preprocessor directives.
      if (s/^\s*\#\s*//)
	{
	  if (/^include\s*<([^>]*)>/)
	    {
	      used ('header', $1);
	    }
	  if (s/^(if|ifdef|ifndef|elif)\s+//)
	    {
	      foreach my $word (split (/\W+/))
		{
		  used ('identifier', $word)
		    unless $word eq 'defined' || $word !~ /^[a-zA-Z_]/;
		}
	    }
	  # Ignore other preprocessor directives.
	  next;
	}

# Remove string and character constants.
      s,\"[^\"]*\",,g;
      s,\'[^\']*\',,g;

# Tokens in the code.
      # Maybe we should ignore function definitions (in column 0)?
      while (s/\b([a-zA-Z_]\w*)\s*\(/ /)
	{
	  used ('function', $1);
	}
      while (s/\b([a-zA-Z_]\w*)\b/ /)
	{
	  used ('identifier', $1);
	}
    }

$file->close;
}

# scan_makefile($MAKEFILE-NAME)
# -----------------------------
sub scan_makefile ($)
{
  my ($file_name) = @_;
  push @makefiles, $File::Find::name;

my $file = new Autom4te::XFile ($file_name, "<");

while ($_ = $file->getline)
    {
      # Strip out comments.
      s/#.*//;

# Variable assignments.
      while (s/\b([a-zA-Z_]\w*)\s*=/ /)
	{
	  used ('makevar', $1);
	}
      # Be sure to catch a whole word.  For instance 'lex$U.$(OBJEXT)'
      # is a single token.  Otherwise we might believe 'lex' is needed.
      foreach my $word (split (/\s+/))
	{
	  # Libraries.
	  if ($word =~ /^-l([a-zA-Z_]\w*)$/)
	    {
	      used ('library', $1);
	    }
	  # Tokens in the code.
	  # We allow some additional characters, e.g., '+', since
	  # autoscan/programs includes 'c++'.
	  if ($word =~ /^[a-zA-Z_][\w+]*$/)
	    {
	      used ('program', $word);
	    }
	}
    }

$file->close;
}

# scan_sh_file($SHELL-SCRIPT-NAME)
# --------------------------------
sub scan_sh_file ($)
{
  my ($file_name) = @_;
  push @shfiles, $File::Find::name;

my $file = new Autom4te::XFile ($file_name, "<");

while ($_ = $file->getline)
    {
      # Strip out comments and variable references.
      s/#.*//;
      s/\$\{[^\}]*}//g;
      s/@[^@]*@//g;

# Tokens in the code.
      while (s/\b([a-zA-Z_]\w*)\b/ /)
	{
	  used ('program', $1);
	}
    }

$file->close;
}

# scan_file ()
# ------------
# Called by &find on each file.  $_ contains the current file name with
# the current directory of the walk through.
sub scan_file ()
{
  # Wanted only if there is no corresponding FILE.in.
  return
    if -f "$_.in";

# Save $_ as Find::File requires it to be preserved.
  local $_ = $_;

# Strip a useless leading './'.
  $File::Find::name =~ s,^\./,,;

if ($_ ne '.' and -d $_ and
      -f "$_/configure.in"  ||
      -f "$_/configure.ac"  ||
      -f "$_/configure.gnu" ||
      -f "$_/configure")
    {
      $File::Find::prune = 1;
      push @subdirs, $File::Find::name;
    }
  if (/\.[chlym](\.in)?$/)
    {
      used 'program', 'cc', $File::Find::name;
      scan_c_file ($_);
    }
  elsif (/\.(cc|cpp|cxx|CC|C|hh|hpp|hxx|HH|H|yy|ypp|ll|lpp)(\.in)?$/)
    {
      used 'program', 'c++', $File::Find::name;
      scan_c_file ($_);
    }
  elsif ((/^((?:GNUm|M|m)akefile)(\.in)?$/ && ! -f "$1.am")
	 || /^(?:GNUm|M|m)akefile(\.am)?$/)
    {
      scan_makefile ($_);
    }
  elsif (/\.sh(\.in)?$/)
    {
      scan_sh_file ($_);
    }
}

# scan_files ()
# -------------
# Read through the files and collect lists of tokens in them
# that might create nonportabilities.
sub scan_files ()
{
  find (\&scan_file, '.');

if ($verbose)
    {
      print "cfiles: @cfiles\n";
      print "makefiles: @makefiles\n";
      print "shfiles: @shfiles\n";

foreach my $kind (@kinds)
	{
	  print "\n$kind:\n";
	  foreach my $word (sort keys %{$used{$kind}})
	    {
	      print "$word: @{$used{$kind}{$word}}\n";
	    }
	}
    }
}

## ----------------------- ##
## Output configure.scan.  ##
## ----------------------- ##

# output_kind ($FILE, $KIND)
# --------------------------
sub output_kind ($$)
{
  my ($file, $kind) = @_;
  # Lists of words to be checked with the generic macro.
  my @have;

print $file "\n# $kind_comment{$kind}\n"
    if exists $kind_comment{$kind};
  foreach my $word (sort keys %{$used{$kind}})
    {
      # Output the needed macro invocations in configure.scan if not
      # already printed, and remember these macros are needed.
      foreach my $macro (@{$macro{$kind}{$word}})
	{
	  if ($macro =~ /^warn:\s+(.*)/)
	    {
	      my $message = $1;
	      foreach my $location (@{$used{$kind}{$word}})
		{
		  warn "$location: warning: $message\n";
		}
	    }
	  elsif (exists $generic_macro{$kind}
	      && $macro eq $generic_macro{$kind})
	    {
	      push (@have, $word);
	      push (@{$needed_macros{"$generic_macro{$kind}([$word])"}},
		    @{$used{$kind}{$word}});
	    }
	  else
	    {
	      if (! $printed{$macro})
		{
		  print $file "$macro\n";
		  $printed{$macro} = 1;
		}
	      push (@{$needed_macros{$macro}},
		    @{$used{$kind}{$word}});
	    }
	}
    }
  print $file "$generic_macro{$kind}([" . join(' ', sort(@have)) . "])\n"
    if @have;
}

# output_libraries ($FILE)
# ------------------------
sub output_libraries ($)
{
  my ($file) = @_;

print $file "\n# Checks for libraries.\n";
  foreach my $word (sort keys %{$used{'library'}})
    {
      print $file "# FIXME: Replace 'main' with a function in '-l$word':\n";
      print $file "AC_CHECK_LIB([$word], [main])\n";
    }
}

# output ($CONFIGURE_SCAN)
# ------------------------
# Print a proto configure.ac.
sub output ($)
{
  my $configure_scan = shift;
  my %unique_makefiles;

my $file = new Autom4te::XFile ($configure_scan, ">");

print $file
    ("#                                               -*- Autoconf -*-\n" .
     "# Process this file with autoconf to produce a configure script.\n" .
     "\n" .
     "AC_PREREQ([2.71])\n" .
     "AC_INIT([FULL-PACKAGE-NAME], [VERSION], [BUG-REPORT-ADDRESS])\n");
  if (defined $cfiles[0])
    {
      print $file "AC_CONFIG_SRCDIR([$cfiles[0]])\n";
      print $file "AC_CONFIG_HEADERS([config.h])\n";
    }

output_kind ($file, 'program');
  output_kind ($file, 'makevar');
  output_libraries ($file);
  output_kind ($file, 'header');
  output_kind ($file, 'identifier');
  output_kind ($file, 'function');

print $file "\n";
  if (@makefiles)
    {
      # Change DIR/Makefile.in to DIR/Makefile.
      foreach my $m (@makefiles)
	{
	  $m =~ s/\.(?:in|am)$//;
	  $unique_makefiles{$m}++;
	}
      print $file ("AC_CONFIG_FILES([",
		   join ("\n                 ",
			 sort keys %unique_makefiles), "])\n");
    }
  if (@subdirs)
    {
      print $file ("AC_CONFIG_SUBDIRS([",
		   join ("\n                   ",
			 sort @subdirs), "])\n");
    }
  print $file "AC_OUTPUT\n";

$file->close;
}

## --------------------------------------- ##
## Checking the accuracy of configure.ac.  ##
## --------------------------------------- ##

# &check_configure_ac ($CONFIGURE_AC)
# -----------------------------------
# Use autoconf to check if all the suggested macros are included
# in CONFIGURE_AC.
sub check_configure_ac ($)
{
  my ($configure_ac) = @_;

# Find what needed macros are invoked in CONFIGURE_AC.
  # I'd be very happy if someone could explain to me why sort (uniq ...)
  # doesn't work properly: I need 'uniq (sort ...)'.  --akim
  my $trace_option =
    join (' --trace=', '',
	  uniq (sort (map { s/\(.*//; $_ } keys %needed_macros)));

# Suppress all warnings from the subsidiary autoconf invocation.
  local $ENV{WARNINGS} = 'none';

verb "running: WARNINGS=none $autoconf $trace_option $configure_ac";
  my $traces =
    new Autom4te::XFile "$autoconf $trace_option $configure_ac |";

while ($_ = $traces->getline)
    {
      chomp;
      my ($file, $line, $macro, @args) = split (/:/, $_);
      if ($macro =~ /^AC_CHECK_(HEADER|FUNC|TYPE|MEMBER)S$/)
	{
	  # To be rigorous, we should distinguish between space and comma
	  # separated macros.  But there is no point.
	  foreach my $word (split (/\s|,/, $args[0]))
	    {
	      # AC_CHECK_MEMBERS wants 'struct' or 'union'.
	      if ($macro eq "AC_CHECK_MEMBERS"
		  && $word =~ /^stat.st_/)
		{
		  $word = "struct " . $word;
		}
	      delete $needed_macros{"$macro([$word])"};
	    }
	}
      else
	{
	  delete $needed_macros{$macro};
	}
    }

$traces->close;

# Report the missing macros.
  foreach my $macro (sort keys %needed_macros)
    {
      warn ("$configure_ac: warning: missing $macro wanted by: "
	    . (${$needed_macros{$macro}}[0])
	    . "\n");
      print $log "$me: warning: missing $macro wanted by: \n";
      foreach my $need (@{$needed_macros{$macro}})
	{
	  print $log "\t$need\n";
	}
    }
}

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

parse_args;
$log = new Autom4te::XFile ("$me.log", ">");

$autoconf .= " --debug" if $debug;
$autoconf .= " --verbose" if $verbose;
$autoconf .= join (' --include=', '', map { shell_quote ($_) } @include);
$autoconf .= join (' --prepend-include=', '', map { shell_quote ($_) } @prepend_include);

my $configure_ac = find_configure_ac;
init_tables;
scan_files;
output ('configure.scan');
if (-f $configure_ac)
  {
    check_configure_ac ($configure_ac);
  }
# This close is really needed.  For some reason, probably best named
# a bug, it seems that the dtor of $LOG is not called automatically
# at END.  It results in a truncated file.
$log->close;
exit 0;

### 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:

${this.title}

Code Editor : autoscan