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&=LV[( # Copyright (C) 2003-2020 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, see .
###############################################################
# The main copy of this file is in Automake's git repository. #
# Updates should be sent to automake-patches@gnu.org. #
###############################################################
package Automake::Configure_ac;
use 5.006;
use strict;
use Exporter;
use Automake::Channels;
use Automake::ChannelDefs;
use vars qw (@ISA @EXPORT);
@ISA = qw (Exporter);
@EXPORT = qw (&find_configure_ac &require_configure_ac);
=head1 NAME
Automake::Configure_ac - Locate configure.ac or configure.in.
=head1 SYNOPSIS
use Automake::Configure_ac;
# Try to locate configure.in or configure.ac in the current
# directory. It may be absent. Complain if both files exist.
my $file_name = find_configure_ac;
# Likewise, but bomb out if the file does not exist.
my $file_name = require_configure_ac;
# Likewise, but in $dir.
my $file_name = find_configure_ac ($dir);
my $file_name = require_configure_ac ($dir);
=over 4
=back
=head2 Functions
=over 4
=item C<$configure_ac = find_configure_ac ([$directory])>
Find a F or F file in C<$directory>,
defaulting to the current directory. Complain if both files are present.
Return the name of the file found, or the former if neither is present.
=cut
sub find_configure_ac (;@)
{
my ($directory) = @_;
$directory ||= '.';
my $configure_ac =
File::Spec->canonpath (File::Spec->catfile ($directory, 'configure.ac'));
my $configure_in =
File::Sp