1 files changed, 79 insertions, 0 deletions
diff --git a/lib/Lintian/Check/Libraries/Shared/MultiArch.pm b/lib/Lintian/Check/Libraries/Shared/MultiArch.pm
new file mode 100644
index 0000000..52c1bc5
--- /dev/null
+++ b/lib/Lintian/Check/Libraries/Shared/MultiArch.pm
@@ -0,0 +1,79 @@
+# libraries/shared/multi-arch -- lintian check script -*- perl -*-
+
+# Copyright (C) 1998 Christian Schwarz
+# Copyright (C) 2018-2019 Chris Lamb <lamby@debian.org>
+# Copyright (C) 2021 Felix Lechner
+#
+# 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, you can find it on the World Wide
+# Web at https://www.gnu.org/copyleft/gpl.html, or write to the Free
+# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+# MA 02110-1301, USA.
+
+package Lintian::Check::Libraries::Shared::MultiArch;
+
+use v5.20;
+use warnings;
+use utf8;
+
+use List::SomeUtils qw(none uniq);
+
+use Moo;
+use namespace::clean;
+
+with 'Lintian::Check';
+
+has shared_libraries => (is => 'rw', default => sub { [] });
+
+sub visit_installed_files {
+    my ($self, $item) = @_;
+
+    return
+      unless $item->is_file;
+
+    return
+      unless $item->file_type =~ m{^ [^,]* \b ELF \b }x;
+
+    return
+      unless $item->file_type
+      =~ m{(?: shared [ ] object | pie [ ] executable )}x;
+
+    my @ldconfig_folders = @{$self->data->architectures->ldconfig_folders};
+    return
+      if none { $item->dirname eq $_ } @ldconfig_folders;
+
+    push(@{$self->shared_libraries}, $item->name);
+
+    return;
+}
+
+sub installable {
+    my ($self) = @_;
+
+    $self->hint(
+        'shared-library-is-multi-arch-foreign',
+        (sort +uniq @{$self->shared_libraries})
+      )
+      if @{$self->shared_libraries}
+      && $self->processable->fields->value('Multi-Arch') eq 'foreign';
+
+    return;
+}
+
+1;
+
+# Local Variables:
+# indent-tabs-mode: nil
+# cperl-indent-level: 4
+# End:
+# vim: syntax=perl sw=4 sts=4 sr et