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- #!/usr/bin/perl
- # -*- perl -*-
- # Makefile. Generated from Makefile.in by configure.
-
- eval 'case $# in 0) exec /usr/bin/perl -S "$0";; *) exec /usr/bin/perl -S "$0" "$@";; esac'
- if 0;
-
- # aclocal - create aclocal.m4 by scanning configure.ac
-
- # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002
- # 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 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, write to the Free Software
- # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- # 02111-1307, USA.
-
- # Written by Tom Tromey <tromey@redhat.com>.
-
- BEGIN
- {
- my $perllibdir = $ENV{'perllibdir'} || '/usr/share/automake-1.7';
- unshift @INC, $perllibdir;
- }
-
- use Automake::General;
- use Automake::XFile;
-
- # Some constants.
- $VERSION = '1.7.9';
- $APIVERSION = '1.7';
- $PACKAGE = 'automake';
- # Note that this isn't pkgdatadir, but a separate directory.
- # Note also that the versioned directory is handled later.
- $acdir = '/usr/share/aclocal';
- $default_acdir = $acdir;
- # contains a list of directories, one per line, to be added
- # to the dirlist in addition to $acdir, as if -I had been
- # added to the command line. If acdir has been redirected,
- # we will also check the specified acdir (this is done later).
- $default_dirlist = "$default_acdir/dirlist";
-
- # Some globals.
-
- # Exit status.
- $exit_status = 0;
-
- # Name of the top autoconf input: `configure.ac' or `configure.in'.
- $configure_ac = find_configure_ac;
-
- # Text to output.
- $output = '';
-
- # Output file name.
- $output_file = 'aclocal.m4';
-
- # Which macros have been seen.
- %macro_seen = ();
-
- # Which files have been seen.
- %file_seen = ();
-
- # Map macro names to file names.
- %map = ();
-
- # Map file names to file contents.
- %file_contents = ();
-
- # How much to say.
- $verbose = 0;
-
- # Matches a macro definition.
- # AC_DEFUN([macroname], ...)
- # or
- # AC_DEFUN(macroname, ...)
- # When macroname is `['-quoted , we accept any character in the name,
- # except `]'. Otherwise macroname stops on the first `]', `,', `)',
- # or `\n' encountered.
- $ac_defun_rx = "A[CU]_DEFUN\\((?:\\[([^]]+)\\]|([^],)\n]+))";
-
- # Matches an AC_REQUIRE line.
- $ac_require_rx = "AC_REQUIRE\\((?:\\[([^]]+)\\]|([^],)\n]+))\\)";
-
-
-
- local (@dirlist) = &parse_arguments (@ARGV);
- &scan_m4_files (@dirlist);
- &scan_configure;
- if (! $exit_status)
- {
- &write_aclocal;
- }
- &check_acinclude;
-
- exit $exit_status;
-
- ################################################################
-
- # Print usage and exit.
- sub usage ($)
- {
- local ($status) = @_;
-
- print "Usage: aclocal [OPTIONS] ...\n\n";
- print "\
- Generate `aclocal.m4' by scanning `configure.ac' or `configure.in'
-
- --acdir=DIR directory holding config files
- --help print this help, then exit
- -I DIR add directory to search list for .m4 files
- --output=FILE put output in FILE (default aclocal.m4)
- --print-ac-dir print name of directory holding m4 files
- --verbose don't be silent
- --version print version number, then exit
-
- Report bugs to <bug-automake\@gnu.org>.\n";
-
- exit $status;
- }
-
- # Parse command line.
- sub parse_arguments (@)
- {
- local (@arglist) = @_;
- local (@dirlist);
- local ($print_and_exit) = 0;
-
- while (@arglist)
- {
- if ($arglist[0] =~ /^--acdir=(.+)$/)
- {
- $acdir = $1;
- }
- elsif ($arglist[0] =~/^--output=(.+)$/)
- {
- $output_file = $1;
- }
- elsif ($arglist[0] eq '-I')
- {
- shift (@arglist);
- push (@dirlist, $arglist[0]);
- }
- elsif ($arglist[0] eq '--print-ac-dir')
- {
- $print_and_exit = 1;
- }
- elsif ($arglist[0] eq '--verbose')
- {
- ++$verbose;
- }
- elsif ($arglist[0] eq '--version')
- {
- print "aclocal (GNU $PACKAGE) $VERSION\n\n";
- print "Copyright (C) 2002 Free Software Foundation, Inc.\n";
- print "This is free software; see the source for copying conditions. There is NO\n";
- print "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n";
- print "Written by Tom Tromey <tromey\@redhat.com>\n";
- exit 0;
- }
- elsif ($arglist[0] eq '--help')
- {
- &usage (0);
- }
- else
- {
- die "aclocal: unrecognized option -- `$arglist[0]'\nTry `aclocal --help' for more information.\n";
- }
-
- shift (@arglist);
- }
-
- if ($print_and_exit)
- {
- print $acdir, "\n";
- exit 0;
- }
-
- $default_dirlist="$acdir/dirlist"
- if $acdir ne $default_acdir;
-
- # Search the versioned directory near the end, and then the
- # unversioned directory last. Only do this if the user didn't
- # override acdir.
- push (@dirlist, "$acdir-$APIVERSION")
- if $acdir eq $default_acdir;
-
- # By default $(datadir)/aclocal doesn't exist. We don't want to
- # get an error in the case where we are searching the default
- # directory and it hasn't been created.
- push (@dirlist, $acdir)
- unless $acdir eq $default_acdir && ! -d $acdir;
-
- # Finally, adds any directory listed in the `dirlist' file.
- if (open (DEFAULT_DIRLIST, $default_dirlist))
- {
- while (<DEFAULT_DIRLIST>)
- {
- # Ignore '#' lines.
- next if /^#/;
- # strip off newlines and end-of-line comments
- s/\s*\#.*$//;
- chomp ($contents=$_);
- if (-d $contents )
- {
- push (@dirlist, $contents);
- }
- }
- close (DEFAULT_DIRLIST);
- }
-
-
- return @dirlist;
- }
-
- ################################################################
-
- sub scan_configure ()
- {
- die "aclocal: `configure.ac' or `configure.in' is required\n"
- if !$configure_ac;
-
- open (CONFIGURE, $configure_ac)
- || die "aclocal: couldn't open `$configure_ac': $!\n";
-
- # Make sure we include acinclude.m4 if it exists.
- if (-f 'acinclude.m4')
- {
- &add_file ('acinclude.m4');
- }
-
- while (<CONFIGURE>)
- {
- # Remove comments from current line.
- s/\bdnl\b.*$//;
- s/\#.*$//;
-
- # Search for things we know about. The "search" sub is
- # constructed dynamically by scan_m4_files. The last
- # parenthetical match makes sure we don't match things that
- # look like macro assignments or AC_SUBSTs.
- if (! &search && /(^|\s+)(AM_[A-Z0-9_]+)($|[^\]\)=A-Z0-9_])/)
- {
- # Macro not found, but AM_ prefix found.
- warn "aclocal: $configure_ac: $.: macro `$2' not found in library\n";
- $exit_status = 1;
- }
- }
-
- close (CONFIGURE);
- }
-
- ################################################################
-
- # Check macros in acinclude.m4. If one is not used, warn.
- sub check_acinclude ()
- {
- local ($key);
-
- foreach $key (keys %map)
- {
- next unless $map{$key} eq 'acinclude.m4';
- if (! $macro_seen{$key})
- {
- # FIXME: should print line number of acinclude.m4.
- warn "aclocal: macro `$key' defined in acinclude.m4 but never used\n";
- }
- }
- }
-
- ################################################################
-
- # Scan all the installed m4 files and construct a map.
- sub scan_m4_files (@)
- {
- local (@dirlist) = @_;
-
- # First, scan acinclude.m4 if it exists.
- if (-f 'acinclude.m4')
- {
- $file_contents{'acinclude.m4'} = &scan_file ('acinclude.m4');
- }
-
- local ($m4dir);
- foreach $m4dir (@dirlist)
- {
- opendir (DIR, $m4dir)
- || die "aclocal: couldn't open directory `$m4dir': $!\n";
- local ($file, $fullfile);
- foreach $file (sort grep (! /^\./, readdir (DIR)))
- {
- # Only examine .m4 files.
- next unless $file =~ /\.m4$/;
-
- # Skip some files when running out of srcdir.
- next if $file eq 'aclocal.m4';
-
- $fullfile = $m4dir . '/' . $file;
- $file_contents{$fullfile} = &scan_file ($fullfile);
- }
- closedir (DIR);
- }
-
- # Construct a new function that does the searching. We use a
- # function (instead of just evaluating $search in the loop) so that
- # "die" is correctly and easily propagated if run.
- my $search = "sub search {\nmy \$found = 0;\n";
- foreach my $key (reverse sort keys %map)
- {
- $search .= ('if (/\b\Q' . $key . '\E(?!\w)/) { & add_macro ("' . $key
- . '"); $found = 1; }' . "\n");
- }
- $search .= "return \$found;\n};\n";
- eval $search;
- die "internal error: $@\n search is $search" if $@;
- }
-
- ################################################################
-
- # Add a macro to the output.
- sub add_macro ($)
- {
- local ($macro) = @_;
-
- # We want to ignore AC_ macros. However, if an AC_ macro is
- # defined in (eg) acinclude.m4, then we want to make sure we mark
- # it as seen.
- return if $macro =~ /^AC_/ && ! defined $map{$macro};
-
- if (! defined $map{$macro})
- {
- warn "aclocal: macro `$macro' required but not defined\n";
- $exit_status = 1;
- return;
- }
-
- print STDERR "aclocal: saw macro $macro\n" if $verbose;
- $macro_seen{$macro} = 1;
- &add_file ($map{$macro});
- }
-
- # Add a file to output.
- sub add_file ($)
- {
- local ($file) = @_;
-
- # Only add a file once.
- return if ($file_seen{$file});
- $file_seen{$file} = 1;
-
- $output .= $file_contents{$file} . "\n";
- my (@rlist);
- foreach (split ("\n", $file_contents{$file}))
- {
- # Remove comments from current line.
- s/\bdnl\b.*$//;
- s/\#.*$//;
-
- if (/$ac_require_rx/g)
- {
- push (@rlist, $1 || $2);
- }
-
- # The search function is constructed dynamically by
- # scan_m4_files. The last parenthetical match makes sure we
- # don't match things that look like macro assignments or
- # AC_SUBSTs.
- if (! &search && /(^|\s+)(AM_[A-Z0-9_]+)($|[^\]\)=A-Z0-9_])/)
- {
- # Macro not found, but AM_ prefix found.
- warn "aclocal: $configure_ac: $.: macro `$2' not found in library\n";
- $exit_status = 1;
- }
- }
-
- local ($macro);
- foreach $macro (@rlist)
- {
- &add_macro ($macro);
- }
- }
-
- # Scan a single M4 file. Return contents.
- sub scan_file ($)
- {
- local ($file) = @_;
-
- my $fh = new Automake::XFile $file;
- my $contents = '';
- while ($_ = $fh->getline)
- {
- # Ignore `##' lines.
- next if /^##/;
-
- $contents .= $_;
-
- if (/$ac_defun_rx/)
- {
- if (! defined $map{$1 || $2})
- {
- $map{$1 || $2} = $file;
- }
-
- # Note: we used to give an error here if we saw a
- # duplicated macro. However, this turns out to be
- # extremely unpopular. It causes actual problems which
- # are hard to work around, especially when you must
- # mix-and-match tool versions.
-
- print STDERR "aclocal: found macro $1 in $file: $.\n" if $verbose;
- }
- }
-
- return $contents;
- }
-
- ################################################################
-
- # Write output.
- sub write_aclocal ()
- {
- return if ! length ($output);
-
- print STDERR "aclocal: writing $output_file\n" if $verbose;
-
- my $out = new Automake::XFile "> $output_file";
-
- # We used to print `# $output_file generated automatically etc.' But
- # this creates spurious differences when using autoreconf. Autoreconf
- # creates aclocal.m4t and then rename it to aclocal.m4, but the
- # rebuild rules generated by Automake create aclocal.m4 directly --
- # this would gives two ways to get the same file, with a different
- # name in the header.
- print $out
- "# generated automatically by aclocal $VERSION -*- Autoconf -*-
-
- # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002
- # Free Software Foundation, Inc.
- # This file is free software; the Free Software Foundation
- # gives unlimited permission to copy and/or distribute it,
- # with or without modifications, as long as this notice is preserved.
-
- # This program is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
- # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
- # PARTICULAR PURPOSE.
-
- $output";
- }
-
- ### 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:
-