From: ludo@gnu.org (Ludovic Courtès)
To: Leo Famulari <leo@famulari.name>
Cc: 23776@debbugs.gnu.org
Subject: bug#23776: Perl's .pod files include timestamps, making Perl package builds non-deterministic
Date: Wed, 11 Jan 2017 23:27:11 +0100 [thread overview]
Message-ID: <87mvexuta8.fsf@gnu.org> (raw)
In-Reply-To: <20160619173154.GA26953@jasmine> (Leo Famulari's message of "Sun, 19 Jun 2016 13:31:54 -0400")
Leo Famulari <leo@famulari.name> skribis:
> 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 <git://git.debian.org/git/reproducible/notes.git>:
>> >
>> > --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?
For the record, even though Pod::Man supposedly honors SOURCE_DATE_EPOCH
as of Perl 5.24, we still have this problem:
--8<---------------cut here---------------start------------->8---
$ diff -r /gnu/store/hczskszmhm2l65vy8nv990lzc5dk3ln9-perl-algorithm-c3-0.10{,-check}
diff -r /gnu/store/hczskszmhm2l65vy8nv990lzc5dk3ln9-perl-algorithm-c3-0.10/lib/perl5/5.24.0/x86_64-linux-thread-multi/perllocal.pod /gnu/store/hczskszmhm2l65vy8nv990lzc5dk3ln9-perl-algorithm-c3-0.10-check/lib/perl5/5.24.0/x86_64-linux-thread-multi/perllocal.pod
1c1
< =head2 Wed Jan 11 22:20:36 2017: C<Module> L<Algorithm::C3|Algorithm::C3>
---
> =head2 Wed Jan 11 22:20:34 2017: C<Module> L<Algorithm::C3|Algorithm::C3>
--8<---------------cut here---------------end--------------->8---
Ludo’.
next prev parent reply other threads:[~2017-01-11 22:28 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-16 11:33 bug#23776: Perl's .pod files include timestamps, making Perl package builds non-deterministic Ludovic Courtès
2016-06-16 15:39 ` Leo Famulari
2016-06-17 8:11 ` Ludovic Courtès
2016-06-17 18:50 ` Leo Famulari
2016-06-18 20:35 ` Ludovic Courtès
2016-06-19 17:31 ` Leo Famulari
2016-06-25 18:23 ` Leo Famulari
2016-07-30 9:28 ` Ludovic Courtès
2017-01-11 22:27 ` Ludovic Courtès [this message]
2017-01-12 17:24 ` Marius Bakke
2017-01-13 8:02 ` Ludovic Courtès
2017-10-31 15:17 ` Ludovic Courtès
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