From mboxrd@z Thu Jan  1 00:00:00 1970
From: Leo Famulari <leo@famulari.name>
Subject: Re: [PATCH 0/3] Add a generalized `wrap-language-programs`
Date: Thu, 17 Nov 2016 16:15:32 -0500
Message-ID: <20161117211532.GC5556@jasmine>
References: <20161116132734.5943-1-alex@pompo.co>
	<582C6035.1070202@crazy-compilers.com> <87d1hunlmy.fsf@gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
Return-path: <guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:54037)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <leo@famulari.name>) id 1c7U1x-0003ww-Ga
	for guix-devel@gnu.org; Thu, 17 Nov 2016 16:15:38 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <leo@famulari.name>) id 1c7U1u-0002LU-9G
	for guix-devel@gnu.org; Thu, 17 Nov 2016 16:15:37 -0500
Received: from out2-smtp.messagingengine.com ([66.111.4.26]:38158)
	by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32)
	(Exim 4.71) (envelope-from <leo@famulari.name>) id 1c7U1u-0002LM-2V
	for guix-devel@gnu.org; Thu, 17 Nov 2016 16:15:34 -0500
Content-Disposition: inline
In-Reply-To: <87d1hunlmy.fsf@gmail.com>
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: Alex Sassmannshausen <alex.sassmannshausen@gmail.com>
Cc: guix-devel <guix-devel@gnu.org>

On Thu, Nov 17, 2016 at 04:58:45PM +0100, Alex Sassmannshausen wrote:
> 
> Hello
> 
> > You may try e.g. scons, pip, sphinx, or youtube-dl.
> 
> Hartmut was kind enough to suggest the above python applications to test
> this `wrap-language-programs` patch set against, however I have been
> stuck in "Rebuild the world"-hell for the last day and a half setting up
> testcases.
> 
> I end up feeling a bit desesperated and incompetent, as I'm sure it's
> not supposed to be this hard to create an appropriate test scenario here
> — so I was wondering whether anyone has any pointers in avoiding
> constantly rebuilding the world?

Most of the Guix distribution depends on Perl, and most of the rest
depends on Python ;)

Try `guix refresh -l perl`.

So, changing the build systems for these languages will require you to
rebuild almost everything.

Changes like this will need to go on the core-updates branch, where we
make changes to the core of the system.

You could create a separate perl-test-build-system and use it for your
test packages.