From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from eggs.gnu.org ([2001:4830:134:3::10]:58650)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1fL65I-0004jU-3P
	for guix-patches@gnu.org; Tue, 22 May 2018 08:08:11 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1fL65E-00083b-4F
	for guix-patches@gnu.org; Tue, 22 May 2018 08:08:08 -0400
Received: from debbugs.gnu.org ([208.118.235.43]:35853)
	by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16)
	(Exim 4.71) (envelope-from <Debian-debbugs@debbugs.gnu.org>)
	id 1fL65E-00083T-0k
	for guix-patches@gnu.org; Tue, 22 May 2018 08:08:04 -0400
Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2)
	(envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1fL65C-0000Rf-AQ
	for guix-patches@gnu.org; Tue, 22 May 2018 08:08:03 -0400
Subject: [bug#31484] [PATCH] gnu: icu4c: Patch zoneinfo directory.
Resent-Message-ID: <handler.31484.B31484.15269908331655@debbugs.gnu.org>
From: ludo@gnu.org (Ludovic =?UTF-8?Q?Court=C3=A8s?=)
References: <20180517125834.7417-1-mail@cbaines.net> <878t8fpfah.fsf@gnu.org>
	<20180521171514.GA13182@jasmine.lan>
Date: Tue, 22 May 2018 14:06:53 +0200
In-Reply-To: <20180521171514.GA13182@jasmine.lan> (Leo Famulari's message of
	"Mon, 21 May 2018 13:15:14 -0400")
Message-ID: <878t8b6giq.fsf@gnu.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
List-Id: <guix-patches.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/guix-patches>,
	<mailto:guix-patches-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/guix-patches/>
List-Post: <mailto:guix-patches@gnu.org>
List-Help: <mailto:guix-patches-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/guix-patches>,
	<mailto:guix-patches-request@gnu.org?subject=subscribe>
Errors-To: guix-patches-bounces+kyle=kyleam.com@gnu.org
Sender: "Guix-patches" <guix-patches-bounces+kyle=kyleam.com@gnu.org>
To: Leo Famulari <leo@famulari.name>
Cc: 31484@debbugs.gnu.org

Heya,

Leo Famulari <leo@famulari.name> skribis:

> It indicates two general problems, IMO:
>
> 1) the lack of build farm capacity
> 2) it should be possible to update the time zone database without
> rebuilding packages (the packages should use TZDIR)

I think tzdata is an example where dynamic composition (i.e., TZDIR) is
what we should use.  That way we can update tzdata as frequently as we
want.

For the case where TZDIR is unset, programs can still use
tzdata-for-tests, which could be slightly outdated, but I consider it a
=E2=80=9Cdegraded=E2=80=9D mode and I think it=E2=80=99s fine.

> I wonder what is done in Nixpkgs...

It may be that the majority of their users don=E2=80=99t live in the regions
affected by recent timezone changes=E2=80=A6

Ludo=E2=80=99.