From mboxrd@z Thu Jan 1 00:00:00 1970 From: Leo Famulari Subject: bug#23776: Perl's .pod files include timestamps, making Perl package builds non-deterministic Date: Sun, 19 Jun 2016 13:31:54 -0400 Message-ID: <20160619173154.GA26953@jasmine> References: <87fusdgyg5.fsf@gnu.org> <20160616153927.GB2245@jasmine> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:36618) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bEgZt-0000F5-AW for bug-guix@gnu.org; Sun, 19 Jun 2016 13:32:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bEgZp-0006f6-3L for bug-guix@gnu.org; Sun, 19 Jun 2016 13:32:08 -0400 Received: from debbugs.gnu.org ([208.118.235.43]:34284) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bEgZm-0006ez-NV for bug-guix@gnu.org; Sun, 19 Jun 2016 13:32:05 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1bEgZm-0007Dn-G0 for bug-guix@gnu.org; Sun, 19 Jun 2016 13:32:02 -0400 Sender: "Debbugs-submit" Resent-Message-ID: Content-Disposition: inline In-Reply-To: <20160616153927.GB2245@jasmine> List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org Sender: "bug-Guix" To: Ludovic =?UTF-8?Q?Court=C3=A8s?= Cc: 23776@debbugs.gnu.org On Thu, Jun 16, 2016 at 11:39:27AM -0400, Leo Famulari wrote: > On Thu, Jun 16, 2016 at 01:33:46PM +0200, Ludovic Courtès wrote: > > The problem is described in : > > > > --8<---------------cut here---------------start------------->8--- > > timestamps_in_documentation_generated_by_podman: > > description: | > > The module Pod::Man includes timestamps in its embedded manpages: > > http://sources.debian.net/src/perl/latest/cpan/podlators/lib/Pod/Man.pm/?hl=1700#L977 > > They should be based on the mtime of the original file. > > url: https://wiki.debian.org/ReproducibleBuilds/TimestampsInManpagesGeneratedByPodMan > > According to the information on this page, we should set POD_MAN_DATE > while building. Should we make the perl-build-system export this > variable? Set to SOURCE_DATE_EPOCH? I noticed that Pod::Man is supposed to respect SOURCE_DATE_EPOCH, as of the upstream module version 4.03 (released 2015-12-06). Does anyone know how to check the version of the module bundled into perl? [0] https://metacpan.org/pod/Pod::Man#date [1] https://www.eyrie.org/~eagle/software/podlators/news.html