From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: Required packages
Date: Thu, 07 Feb 2013 22:39:36 +0100
Message-ID: <87pq0bn6qv.fsf@gnu.org>
References: <201302041952.22425.andreas@enge.fr>
	<201302071316.24589.andreas@enge.fr> <87wqukds6e.fsf@gnu.org>
	<201302071719.27034.andreas@enge.fr>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Return-path: <bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([208.118.235.92]:40296)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <ludo@gnu.org>) id 1U3ZC0-00057K-Lt
	for bug-guix@gnu.org; Thu, 07 Feb 2013 16:39:41 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <ludo@gnu.org>) id 1U3ZBz-0008Bu-As
	for bug-guix@gnu.org; Thu, 07 Feb 2013 16:39:40 -0500
Received: from mail2-relais-roc.national.inria.fr ([192.134.164.83]:53227)
	by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <ludo@gnu.org>)
	id 1U3ZBz-0008Bo-4D
	for bug-guix@gnu.org; Thu, 07 Feb 2013 16:39:39 -0500
In-Reply-To: <201302071719.27034.andreas@enge.fr> (Andreas Enge's message of
	"Thu, 7 Feb 2013 17:19:26 +0100")
List-Id: Bug reports for GNU Guix <bug-guix.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/bug-guix>,
	<mailto:bug-guix-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/bug-guix>
List-Post: <mailto:bug-guix@gnu.org>
List-Help: <mailto:bug-guix-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/bug-guix>,
	<mailto:bug-guix-request@gnu.org?subject=subscribe>
Errors-To: bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org
Sender: bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org
To: Andreas Enge <andreas@enge.fr>
Cc: bug-guix@gnu.org

Andreas Enge <andreas@enge.fr> skribis:

> Am Donnerstag, 7. Februar 2013 schrieb Ludovic Court=C3=A8s:
>> Andreas Enge <andreas@enge.fr> skribis:
>> > In my attempt to install guix from guix, I came upon the problem that
>> > the libgcrypt headers require the libgpg-error headers. This is a
>> > propagated input, so should in the future be installed automatically.
>> The future is actually yesterday.  :-)
>
> Well, I first needed to compile yesterday's version, so my future was=20
> indeed in the future (although now it is in the past, a fate every future=
=20
> has to suffer). ;-)

I see.  Hopefully you don=E2=80=99t have to roll back to the future.  :-)

>> It=E2=80=99s a bit trickier.  linux-libre-headers is propagated by glibc=
, so if
>> you install glibc, you get both.
>>=20
>> However, glibc is an /implicit/ input of everything that uses
>> =E2=80=98gnu-build-system=E2=80=99, such as libgcrypt.  So it doesn=E2=
=80=99t get installed when
>> you install libgcrypt.
>>=20
>> I=E2=80=99m not sure whether glibc should be automatically installed as =
if it
>> were a propagated input.  If the answer were =E2=80=9Cyes=E2=80=9D, I=E2=
=80=99m not sure how to
>> achieve it elegantly, because implicit inputs are hidden, by definition.
>
> Is this not too dangerous? It would mean that as soon as you install=20
> anything, you get the glibc. And in a system that has guix and a native=20
> glibc, things might stop working from there on...
>
> Since I installed the guix glibc before you implemented the automatic=20
> installation of propagated inputs, I hit a problem that should have=20
> disappeared in the meantime. So I would suggest to do nothing.

Yeah, I prefer it this way.

Thanks for the feedback,
Ludo=E2=80=99.