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bug#23776: Perl's .pod files include timestamps, making Perl package bui
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 |
User-agent: |
Mutt/1.6.0 (2016-04-01) |
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?
[0]
https://metacpan.org/pod/Pod::Man#date
[1]
https://www.eyrie.org/~eagle/software/podlators/news.html