From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp1 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id 0ELmGoFv2179MwAA0tVLHw (envelope-from ) for ; Sat, 06 Jun 2020 10:27:13 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp1 with LMTPS id WJu0FoFv216NXQAAbx9fmQ (envelope-from ) for ; Sat, 06 Jun 2020 10:27:13 +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 A601D9404C5 for ; Sat, 6 Jun 2020 10:27:12 +0000 (UTC) Received: from localhost ([::1]:35060 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jhW2g-0004m5-CY for larch@yhetil.org; Sat, 06 Jun 2020 06:27:10 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:53568) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jhW2Y-0004ln-ND for bug-guix@gnu.org; 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charset="UTF-8" X-Spam-Score: 0.0 (/) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-Spam-Score: -1.0 (-) X-BeenThere: bug-guix@gnu.org List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: 41732@debbugs.gnu.org, Fredrik Salomonsson Errors-To: bug-guix-bounces+larch=yhetil.org@gnu.org Sender: "bug-Guix" X-Scanner: scn0 Authentication-Results: aspmx1.migadu.com; dkim=fail (rsa verify failed) header.d=gmail.com header.s=20161025 header.b=BUQj/ouX; dmarc=fail reason="SPF not aligned (relaxed)" header.from=gmail.com (policy=none); spf=pass (aspmx1.migadu.com: domain of bug-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=bug-guix-bounces@gnu.org X-Spam-Score: 0.09 X-TUID: lzvQoAK57G9v Dear Nicolas, On Sat, 6 Jun 2020 at 10:11, Nicolas Goaziou wrote: > You may be right. Files byte-compiled with Emacs 26 may not be > compatible with Emacs 27. > > I don't know what can be done on Guix's side, tho. Somehow, one needs to change the Emacs version used by the Emacs toolchain to bytecompile, right? I do not know if it makes sense, but we could add something like 'package-with-emacs-next' similar to 'package-with-python2' or 'package-with-ocam4.07'. WDYT? All the best, simon