From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp0 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id 2OtcOTLMAWDxQwAA0tVLHw (envelope-from ) for ; Fri, 15 Jan 2021 17:09:06 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp0 with LMTPS id gEH6NDLMAWDVUAAA1q6Kng (envelope-from ) for ; Fri, 15 Jan 2021 17:09:06 +0000 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id 8ECF594043B for ; Fri, 15 Jan 2021 17:09:06 +0000 (UTC) Received: from localhost ([::1]:48576 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l0Sav-0006mN-Ie for larch@yhetil.org; Fri, 15 Jan 2021 12:09:05 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:37336) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l0Sao-0006mA-1A for guix-devel@gnu.org; Fri, 15 Jan 2021 12:08:58 -0500 Received: from fencepost.gnu.org ([2001:470:142:3::e]:33085) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l0San-0005dq-QW for guix-devel@gnu.org; Fri, 15 Jan 2021 12:08:57 -0500 Received: from [2a01:e0a:1d:7270:af76:b9b:ca24:c465] (port=42758 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1l0San-0004XP-8S for guix-devel@gnu.org; Fri, 15 Jan 2021 12:08:57 -0500 From: =?utf-8?Q?Ludovic_Court=C3=A8s?= To: Guix Devel Subject: Multiple values =?utf-8?Q?=E2=86=92?= SRFI-71 X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 26 =?utf-8?Q?Niv=C3=B4se?= an 229 de la =?utf-8?Q?R?= =?utf-8?Q?=C3=A9volution?= X-PGP-Key-ID: 0x090B11993D9AEBB5 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 3CE4 6455 8A84 FDC6 9DB4 0CFB 090B 1199 3D9A EBB5 X-OS: x86_64-pc-linux-gnu Date: Fri, 15 Jan 2021 18:08:55 +0100 Message-ID: <87mtxaxh3s.fsf@inria.fr> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: guix-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: "Guix-devel" X-Migadu-Flow: FLOW_IN X-Migadu-Spam-Score: -2.86 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of guix-devel-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-devel-bounces@gnu.org X-Migadu-Queue-Id: 8ECF594043B X-Spam-Score: -2.86 X-Migadu-Scanner: scn0.migadu.com X-TUID: JoKUKFBvMN+3 Hello Guix! Starting from commit 4f621a2b003e85d480999e4d0630e9dc3de85bc3, we require Guile >=3D 2.2.6. Since (srfi srfi-71) was added in Guile 2.2.4, I suggest using it instead of the more clunky (srfi srfi-11) =E2=80=98let-values=E2=80=99. We can gradually migrate code. Note that (guix build utils), (guix build gnu-build-system), and probably a few other (guix build =E2=80=A6) modules that are used early dur= ing bootstrap, where Guile 2.0 is used, cannot migrate. Ludo=E2=80=99.