From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: core-updates merged!
Date: Tue, 02 Aug 2016 19:32:23 +0200
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References: <20160801081958.GA2211@solar> <87lh0ggnyt.fsf@gnu.org>
	<87invje1yx.fsf@we.make.ritual.n0.is>
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To: ng0 <ng0@we.make.ritual.n0.is>
Cc: guix-devel@gnu.org

Hello!

ng0 <ng0@we.make.ritual.n0.is> skribis:

> Ludovic Court=C3=A8s <ludo@gnu.org> writes:

[...]

>> On GuixSD, to ease transition to libc 2.23, you=E2=80=99ll want to insta=
ll libc
>> 2.22 locale data globally (info "(guix) Locales"):
>>
>> --8<---------------cut here---------------start------------->8---
>> (use-modules (gnu system locale))
>>
>> (operating-system
>>   ;; =E2=80=A6
>>   (locale-libcs (cons glibc-2.22 %default-locale-libcs)))
>> --8<---------------cut here---------------end--------------->8---
>>
>> Enjoy!
>>
>> Ludo=E2=80=99.
>>
>
> Thanks for pushing this. One question about the comment you made:
> Why is this necessary?

This is necessary for binaries linked against libc 2.22, so they can
access libc 2.22 locale data:

  https://www.gnu.org/software/guix/manual/html_node/Locales.html#Locale-Da=
ta-Compatibility-Considerations

> I rebuilt my systems with this and I get various "invalid locale"
> errors now.

As discussed on IRC, SNAFU!  For reasons yet to be elucidated, the
glibc@2.23 package no longer honors /run/current-system/locale.

Commit ab3a64507a792e4da0527b423fbc28f8768e736a works around it by
setting GUIX_LOCPATH=3D/run/currrent-system/locale on GuixSD.  This is an
acceptable workaround, having no visible drawback.

Please report any other issues!

Ludo=E2=80=99.