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#!/usr/bin/perl -0777 -pi
# In configure.ac, update PACKAGE_COPYRIGHT_YEAR to the current year.
# Copyright (C) 2010-2015, 2018-2022 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, 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/>.
use strict;
use warnings;
my $this_year = $ENV{UPDATE_COPYRIGHT_YEAR};
if (!$this_year || $this_year !~ m/^\d{4}$/)
{
my ($sec, $min, $hour, $mday, $month, $year) = localtime (time ());
$this_year = $year + 1900;
}
my $old_re = <<'EOF'
(
MACRO\(
\[PACKAGE_COPYRIGHT_YEAR],
\s*\[
)
(\d{4})
(?=])
EOF
;
foreach my $macro ("AC_DEFINE", "AC_SUBST")
{
my $this_old_re = $old_re;
$this_old_re =~ s/MACRO/$macro/;
if (!s/$this_old_re/$1$this_year/x)
{
print STDERR
"$ARGV: warning: failed to update PACKAGE_COPYRIGHT_YEAR in"
. " $macro.\n";
}
}
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