From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.help Subject: Re: Build Emacs but =?utf-8?Q?don=E2=80=99t?= compile elc Date: Tue, 03 Aug 2021 15:29:17 +0300 Message-ID: <83a6lyn23m.fsf@gnu.org> References: <4342BC3C-6558-4D06-A26A-24D51506A6C9@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="25469"; mail-complaints-to="usenet@ciao.gmane.io" To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Tue Aug 03 14:30:10 2021 Return-path: Envelope-to: geh-help-gnu-emacs@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 1mAtYf-0006Q7-Oj for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 03 Aug 2021 14:30:09 +0200 Original-Received: from localhost ([::1]:59772 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mAtYe-0004i6-Gj for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 03 Aug 2021 08:30:08 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:35494) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mAtY0-0004hl-6p for help-gnu-emacs@gnu.org; Tue, 03 Aug 2021 08:29:28 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:48146) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mAtXz-0003pr-Nt for help-gnu-emacs@gnu.org; Tue, 03 Aug 2021 08:29:28 -0400 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:1716 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mAtXx-00039q-6H for help-gnu-emacs@gnu.org; Tue, 03 Aug 2021 08:29:27 -0400 In-Reply-To: <4342BC3C-6558-4D06-A26A-24D51506A6C9@gmail.com> (message from Fu Yuan on Tue, 3 Aug 2021 08:24:48 -0400) X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:132341 Archived-At: > From: Fu Yuan > Date: Tue, 3 Aug 2021 08:24:48 -0400 > > Is there anyway to build Emacs but not compile lisp files? Building Emacs compiles only the Lisp files that were changed since the last build. > Every time I switch branch, I need to re-build Emacs, and compiling elc files takes quite a while. I couldn’t find an option to do so in ./configure, maybe there is an option somewhere that I’m not aware of? No such option, and there cannot be: modified Lisp files _must_ be recompiled. My recommendation is not to switch branches in the same worktree: it doesn't work very well in Emacs because the rate of changes during development is very high. Instead, use "git worktree add" to create a separate worktree that uses the same .git directory, but tracks a different branch. then you can just switch to a different directory when you need to work on another branch, and the massive recompilation is avoided.