From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Speeding up the bootstrap build - a quick hack. Date: Tue, 18 Jan 2022 13:40:19 -0500 Message-ID: References: <83pmopunzl.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="35803"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: Alan Mackenzie , emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Jan 18 19:54:55 2022 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1n9td8-00097I-Em for ged-emacs-devel@m.gmane-mx.org; Tue, 18 Jan 2022 19:54:54 +0100 Original-Received: from localhost ([::1]:42312 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n9td6-0000P4-RB for ged-emacs-devel@m.gmane-mx.org; Tue, 18 Jan 2022 13:54:52 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:48750) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n9tPp-0004PF-U5 for emacs-devel@gnu.org; Tue, 18 Jan 2022 13:41:11 -0500 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:23556) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n9tP8-0002Ac-48; Tue, 18 Jan 2022 13:40:43 -0500 Original-Received: from pmg3.iro.umontreal.ca (localhost [127.0.0.1]) by pmg3.iro.umontreal.ca (Proxmox) with ESMTP id 2F8EE44253C; Tue, 18 Jan 2022 13:40:23 -0500 (EST) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg3.iro.umontreal.ca (Proxmox) with ESMTP id E637E44253A; Tue, 18 Jan 2022 13:40:21 -0500 (EST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1642531221; bh=f7OMf3Uz1DFxUSegbvh7Fi/zSIk6oOf+pvDhKutxRRk=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=nsExPrbtqozqaGMV7EGSze85m4F27UWBUAyjjvixse7dj05ji+IK7538YfgJI3T4s aog+8V63xyPqFNU8eWZa7ridMR2v0UNk0nlIqNi4Wx2JUlLc5WeYuiptX2mnC3RGCU d0KPPHRfLRSuQNJQroBUfC+pvG2QdIVeb9G3f+sY7K0prfHJp7COGTmSNd+tzVjymx DGbc2vZhYTccQhHPEaNERTTwsK4BubcJQ2nFuL2eWFVPLWDI4RuAw2d/XoFMfrERGL HjE//R3c1lzR5N49yHMPNIZmrlATMEQ5KrE4JRuklG4CPR2wdZ9YdUMXzSyuIw3v6J zzcmMiqoQ2FYw== Original-Received: from ceviche (unknown [216.154.30.173]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id B4014120849; Tue, 18 Jan 2022 13:40:21 -0500 (EST) In-Reply-To: <83pmopunzl.fsf@gnu.org> (Eli Zaretskii's message of "Tue, 18 Jan 2022 16:17:50 +0200") Received-SPF: pass client-ip=132.204.25.50; envelope-from=monnier@iro.umontreal.ca; helo=mailscanner.iro.umontreal.ca X-Spam_score_int: -42 X-Spam_score: -4.3 X-Spam_bar: ---- X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:284942 Archived-At: > Is this .elc0 trick just to avoid the ELC+ELN compilation of > COMPILE_FIRST, and instead first compile them only to .elc and then > compile again to .elc + .eln? Yes. > If so, why not use no-native-compile to disable the ELN part? Since > compile-first is called from src/Makefile, as part of building > bootstrap-emacs, you can do that in the commands there. But we also want to native-compile those files (after we've byte-compiled them), so we do need two different targets. Those should ideally be `.elc` first and `.eln` later, but we currently don't know how to make that work, so Alan suggests to use `.elc0` first and `.elc` later. Stefan