#!/usr/local/bin/perl
# -*- perl -*-
# Makefile. Generated from Makefile.in by configure.
eval 'case $# in 0) exec /usr/local/bin/perl -S "$0";; *) exec /usr/local/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'} || '/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 = '/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:
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