Revert of Linux build: Use sysroot when calculating dependencies

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

-# Copyright © 2007-2009,2012-2013 Guillem Jover <guillem@debian.org>
-# Copyright © 2007 Raphaël Hertzog <hertzog@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::Vars;
-
-use strict;
-use warnings;
-
-our $VERSION = '0.03';
-
-use Dpkg::ErrorHandling;
-use Dpkg::Gettext;
-use Dpkg::Package;
-
-use Exporter qw(import);
-our @EXPORT = qw(get_source_package set_source_package);
-
-my $sourcepackage;
-
-sub get_source_package {
-    return $sourcepackage;
-}
-
-sub set_source_package {
-    my $v = shift;
-    my $err = pkg_name_is_illegal($v);
-    error(_g("source package name '%s' is illegal: %s"), $v, $err) if $err;
-
-    if (not defined($sourcepackage)) {
-        $sourcepackage = $v;
-    } elsif ($v ne $sourcepackage) {
-        error(_g('source package has two conflicting values - %s and %s'),
-              $sourcepackage, $v);
-    }
-}
-
-1;