Linux build: Use sysroot when calculating dependencies

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

+# Copyright © 2013 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::BuildProfiles;
+
+use strict;
+use warnings;
+
+our $VERSION = '0.01';
+our @EXPORT_OK = qw(get_build_profiles set_build_profiles);
+
+use Exporter qw(import);
+
+use Dpkg::BuildEnv;
+
+my $cache_profiles;
+my @build_profiles;
+
+=encoding utf8
+
+=head1 NAME
+
+Dpkg::BuildProfiles - handle build profiles
+
+=head1 DESCRIPTION
+
+The Dpkg::BuildProfiles module provides functions to handle the build
+profiles.
+
+=head1 FUNCTIONS
+
+=over 4
+
+=item my @profiles = get_build_profiles()
+
+Get an array with the currently active build profiles, taken from
+the environment variable B<DEB_BUILD_PROFILES>.
+
+=cut
+
+sub get_build_profiles {
+    return @build_profiles if $cache_profiles;
+
+    if (Dpkg::BuildEnv::has('DEB_BUILD_PROFILES')) {
+        @build_profiles = split / /, Dpkg::BuildEnv::get('DEB_BUILD_PROFILES');
+    }
+    $cache_profiles = 1;
+
+    return @build_profiles;
+}
+
+=item set_build_profiles(@profiles)
+
+Set C<@profiles> as the current active build profiles, by setting
+the environment variable B<DEB_BUILD_PROFILES>.
+
+=cut
+
+sub set_build_profiles {
+    my (@profiles) = @_;
+
+    @build_profiles = @profiles;
+    Dpkg::BuildEnv::set('DEB_BUILD_PROFILES', join ' ', @profiles);
+}
+
+=back
+
+=cut
+
+1;