Revert of Linux build: Use sysroot when calculating dependencies

third_party/dpkg-dev/scripts/Dpkg/Package.pm

-# Copyright © 2006 Frank Lichtenheld <djpig@debian.org>
-# Copyright © 2007,2012 Guillem Jover <guillem@debian.org>
-#
-# 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 of the License, 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/>.
-
-package Dpkg::Package;
-
-use strict;
-use warnings;
-
-our $VERSION = '0.01';
-
-use Dpkg::Gettext;
-
-use Exporter qw(import);
-our @EXPORT = qw(pkg_name_is_illegal);
-
-sub pkg_name_is_illegal($) {
-    my $name = shift || '';
-
-    if ($name eq '') {
-        return _g('may not be empty string');
-    }
-    if ($name =~ m/[^-+.0-9a-z]/o) {
-        return sprintf(_g("character '%s' not allowed"), $&);
-    }
-    if ($name !~ m/^[0-9a-z]/o) {
-        return _g('must start with an alphanumeric character');
-    }
-
-    return;
-}
-
-1;