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Subject: [bug#28399] [PATCH 1/2] services: mysql: Fix missing modules on
	activation.
Resent-Message-ID: <handler.28399.B28399.15051162605893@debbugs.gnu.org>
From: ludo@gnu.org (Ludovic =?UTF-8?Q?Court=C3=A8s?=)
References: <20170909153905.087c013f@cbaines.net>
	<20170909145343.14851-1-mail@cbaines.net>
Date: Mon, 11 Sep 2017 09:50:46 +0200
In-Reply-To: <20170909145343.14851-1-mail@cbaines.net> (Christopher Baines's
	message of "Sat, 9 Sep 2017 15:53:42 +0100")
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To: Christopher Baines <mail@cbaines.net>
Cc: 28399@debbugs.gnu.org

Hi Chris,

Christopher Baines <mail@cbaines.net> skribis:

> Some systems using the MySQL service would fail to boot, giving the error:
>
>   ERROR: no code for module (ice-9 popen)
>
> * gnu/services/databases.scm (%mysql-activation): Wrap the gexp using
>   with-imported-modules, to ensure that the required modules are availabl=
e.

[...]

> +    (with-imported-modules '((ice-9 popen)
> +                             (guix build utils))

The effect of this would be to import (ice-9 popen) from the host Guile
in the build side.  Thus someone running Guile 2.2.2 on the host would
get a slightly different file from someone running Guile 2.0.14, and so
on, which hinders reproducibility.

The =E2=80=98use-modules=E2=80=99 form should be enough.  Does the test you=
 sent
reproduce the original problem?

Thanks,
Ludo=E2=80=99.