From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Robert Pluim Newsgroups: gmane.emacs.devel Subject: Re: Speeding up the bootstrap build - a quick hack. Date: Tue, 18 Jan 2022 16:13:23 +0100 Message-ID: <871r15oz58.fsf@gmail.com> References: <87pmopp4jy.fsf@gmail.com> <87ee55p1wr.fsf@gmail.com> <875yqhp0w1.fsf@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="32309"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Alan Mackenzie , emacs-devel@gnu.org To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Jan 18 17:09:49 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 1n9r3M-0008Bm-Ln for ged-emacs-devel@m.gmane-mx.org; Tue, 18 Jan 2022 17:09:48 +0100 Original-Received: from localhost ([::1]:33826 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n9r3L-0003Rq-1C for ged-emacs-devel@m.gmane-mx.org; Tue, 18 Jan 2022 11:09:47 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:42360) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n9qAq-0007cO-RT for emacs-devel@gnu.org; Tue, 18 Jan 2022 10:13:29 -0500 Original-Received: from [2a00:1450:4864:20::329] (port=38844 helo=mail-wm1-x329.google.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1n9qAo-0007b3-AR for emacs-devel@gnu.org; Tue, 18 Jan 2022 10:13:28 -0500 Original-Received: by mail-wm1-x329.google.com with SMTP id p1-20020a1c7401000000b00345c2d068bdso6568334wmc.3 for ; Tue, 18 Jan 2022 07:13:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:references:date:in-reply-to:message-id :mime-version:content-transfer-encoding; bh=39qV/4PFYBCSwCWl1U3zn33HtFCSS54JXGAPiU6KIuQ=; b=BI1FLHuEcCM0lPO6K63cTMzUxswErVHcGjVA9HbXg/NVlt1N/JvuN3k5xfOifyhCEa jK/WpfvwMs/oCYTAFpdOCVkJAV33QBfTTNN+iIZ8ChYDeuC8y4Z3er6ASL2lHPsBLAVk zBZSYeWSzNmQHIABu923ulU8k63/B+hLgPtTgRlcDxfI7wG5Uz2GUKrEBvDdYkXypFzc 0MVPEWM94n4W4IZcqsLt/klZG5SntC5NSPRrl8/PBqsiaCDJwO21N2qS7ixCpzSNpDTB VsiAT706FvsJCyJbfzH3ARqDYWPvSxW1tjDF+XbQ1g1KVUF95fe6jF0EZ8lx+4VftzQz ea1Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:references:date:in-reply-to :message-id:mime-version:content-transfer-encoding; bh=39qV/4PFYBCSwCWl1U3zn33HtFCSS54JXGAPiU6KIuQ=; b=BRx6hfOTxJf70wah1nO16RBKPGmduiyAwzZUDph5RTpsWylb5Qv+anHDR1fLBGju03 bD82kmvJvJ2ttYz6hF9A1IfeKy0Cpbn/WTebFhlqI7h/oaTDKDbF2aVz8EXYRldtq9fY vV5RjsTMf0A2gufxqpJMbt7ywPQFTMjuYR/DTJ2XH8YG6Ykcj29wfxFEIa3Wh3kBzzKC vPRrWeAbJlAM87C0W+BohyTsHIV0mpYP9vCjEM649ShySsN0Di+aSG0kUwjyGNyRvdG+ kg5sJS9gAY/UoEj6uZYMohwnmonvsNl6aIF0Ck6TZjgoNqouj7NSuAyXmbmQ61kPDsMv YlfQ== X-Gm-Message-State: AOAM5329qk1FCs755RDqVDv+Q/R1SVEkZWhXcX5fAGGWFX+8gp1NKJHh dJNNR+RzhY9BAGU1cNYnI7sgJ8X+yuw= X-Google-Smtp-Source: ABdhPJxAGQQk8cHqMJSPhv6MAPH8PW/L4itXOlx6uFQpc5eOHzwgF2pPhK2MM5dpYG+7i6ErxRhibg== X-Received: by 2002:a5d:59ae:: with SMTP id p14mr13547837wrr.559.1642518804346; Tue, 18 Jan 2022 07:13:24 -0800 (PST) Original-Received: from rltb ([2a01:e0a:3f3:fb50:bb30:9458:d59e:39a2]) by smtp.gmail.com with ESMTPSA id s84sm2773wme.15.2022.01.18.07.13.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Jan 2022 07:13:23 -0800 (PST) In-Reply-To: <875yqhp0w1.fsf@gmail.com> (Robert Pluim's message of "Tue, 18 Jan 2022 15:35:42 +0100") X-Host-Lookup-Failed: Reverse DNS lookup failed for 2a00:1450:4864:20::329 (failed) Received-SPF: pass client-ip=2a00:1450:4864:20::329; envelope-from=rpluim@gmail.com; helo=mail-wm1-x329.google.com X-Spam_score_int: -12 X-Spam_score: -1.3 X-Spam_bar: - X-Spam_report: (-1.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, PDS_HP_HELO_NORDNS=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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:284937 Archived-At: >>>>> On Tue, 18 Jan 2022 15:35:42 +0100, Robert Pluim s= aid: Stefan> In an ideal world the second rule would not have `bytecomp.elc`= as its Stefan> target but would have something like `bytecomp.eln` instead, bu= t we have Stefan> not yet been able to teach Make how to compute the name of the = generated Stefan> `.eln` file (it's not just `bytecomp.eln` but includes some has= h of the Stefan> Emacs binary). Robert> There=CA=BCs no other file or directory name that contains that= hash? Could Robert> we do a dummy compile of an empty .el using the native compiler= and Robert> derive the hash from that? (and then compile the native compile= r with Robert> the byte compiler). Answering my own question: src/emacs -batch --eval '(message "%s" (comp-el-to-eln-filename \ "./lisp/emacs-lisp/bytecomp.el" (car (last \ native-comp-eln-load-path))))' 2>&1 seems to give the right answer. Robert --=20