name : dh_update_autotools_config #!/usr/bin/perl =head1 NAME dh_update_autotools_config - Update autotools config files =cut use strict; use warnings; use Debian::Debhelper::Dh_Lib; our $VERSION = DH_BUILTIN_VERSION; =head1 SYNOPSIS B<dh_update_autotools_config> [S<I<debhelper options>>] =head1 DESCRIPTION B<dh_update_autotools_config> replaces all occurrences of B<config.sub> and B<config.guess> in the source tree by the up-to-date versions found in the autotools-dev package. The original files are backed up and restored by B<dh_clean>. =cut init(); for my $basename (qw(config.guess config.sub)) { my $new_version = "/usr/share/misc/$basename"; open(my $fd, '-|', 'find', '-mindepth', '1', '(', '-type', 'd', '-name', '.*', '-prune', ')', '-o', '-type', 'f', '-name', $basename, '-print') or error("Cannot run find -type f -name $basename: $!"); while (my $filename = <$fd>) { chomp($filename); next if not is_autotools_config_file($filename); restore_file_on_clean($filename); doit('cp', '-f', $new_version, $filename); } close($fd); } sub is_autotools_config_file { my ($file) = @_; my ($is_autoconf_file); open(my $fd, '<', $file) or error("open $file for reading failed: $!"); while (my $line = <$fd>) { chomp($line); # This is the test lintian uses. if ($line =~ m{^timestamp=['"]\d{4}-\d{2}-\d{2}['"]\s*$}) { $is_autoconf_file = 1; last; } $line =~ s/\s++$//; if ($line eq q{# Attempt to guess a canonical system name.} or $line =~ q{^# Configuration validation subroutine script}) { # Very old scripts do not have that timestamp line, but # they do have these headers (which even new files also # have). $is_autoconf_file = 1; last; } last if $. >= 10; } close($fd); return $is_autoconf_file; } =head1 SEE ALSO L<debhelper(7)> This program is a part of debhelper. =head1 AUTHOR Niels Thykier <niels@thykier.net> =cut