From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: [PATCH] Enable deterministic perl archives.
Date: Mon, 28 Nov 2016 14:42:16 +0100
Message-ID: <878ts3d8lj.fsf@gnu.org>
References: <87eg22nkvo.fsf@kirby.i-did-not-set--mail-host-address--so-tickle-me>
	<87r35zp2oz.fsf@gnu.org>
	<87lgw6hdhd.fsf@kirby.i-did-not-set--mail-host-address--so-tickle-me>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Return-path: <guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:42545)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <ludo@gnu.org>) id 1cBMCO-0000bX-LT
	for guix-devel@gnu.org; Mon, 28 Nov 2016 08:42:25 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <ludo@gnu.org>) id 1cBMCK-00023v-Oz
	for guix-devel@gnu.org; Mon, 28 Nov 2016 08:42:24 -0500
In-Reply-To: <87lgw6hdhd.fsf@kirby.i-did-not-set--mail-host-address--so-tickle-me>
	(Marius Bakke's message of "Sat, 26 Nov 2016 09:06:22 +0100")
List-Id: "Development of GNU Guix and the GNU System distribution."
	<guix-devel.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/guix-devel>,
	<mailto:guix-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/guix-devel/>
List-Post: <mailto:guix-devel@gnu.org>
List-Help: <mailto:guix-devel-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/guix-devel>,
	<mailto:guix-devel-request@gnu.org?subject=subscribe>
Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org
Sender: "Guix-devel" <guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org>
To: Marius Bakke <mbakke@fastmail.com>
Cc: guix-devel@gnu.org

Hello!

Marius Bakke <mbakke@fastmail.com> skribis:

> As far as I can tell, they really are pointless. Makefiles generated by
> MakeMaker have a "pure_install" target that do not create them.
>
> From http://www.perlmonks.org/?node=3DExtUtils%3A%3AMakeMaker:
>
> "make install per default writes some documentation of what has been
> done into the file $(INSTALLARCHLIB)/perllocal.pod. This feature can be
> bypassed by calling make pure_install."
>
> Here is a typical perllocal.pod:
>
> =3Dhead2 Tue Oct 25 03:46:54 2016: C<Module> L<Eval::Closure|Eval::Closur=
e>
>
> =3Dover 4
>
> =3Ditem *
>
> C<installed into: /gnu/store/8bqypkq60c72ndxfxi9g661r6rzby7iv-perl-eval-c=
losure-0.14/lib/perl5/site_perl/5.24.0>
>
> =3Ditem *
>
> C<LINKTYPE: dynamic>
>
> =3Ditem *
>
> C<VERSION: 0.14>
>
> =3Ditem *
>
> C<EXE_FILES: >
>
> =3Dback
>
> They contain build date, FFI language, link type, version and a list of
> executables.
>
> As far as I can tell, this is used by "traditional" package managers
> such as CPAN, which appends information about all modules in a location
> to a single perllocal.pod file [0]. Since our modules are
> self-contained, they will not have any more utility than the above.
>
> [0]: http://www.cpan.org/misc/cpan-faq.html#How_installed_modules
>
> "Each time a module is installed on your system, it appends information
> like the following to a file called perllocal.pod which can be found in
> /usr/local/lib/perl5/version number/architecture/ or something akin to
> that"

Oh so it seems similar to things like ld.so.cache.

Then OK for this patch in core-updates, with a comment explaining what
the flag does and why it=E2=80=99s OK (and/or a link to this thread).

Thank you!

Ludo=E2=80=99.