From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Alan Mackenzie Newsgroups: gmane.emacs.bugs Subject: bug#46256: [feature/native-comp] AOT eln files ignored if run from build tree Date: Wed, 10 Mar 2021 16:56:14 +0000 Message-ID: References: <83eegpspjk.fsf@gnu.org> <83r1kpr03h.fsf@gnu.org> <83mtvdqt53.fsf@gnu.org> <83blbsqyea.fsf@gnu.org> <8335x4qofy.fsf@gnu.org> <83y2evnltw.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="993"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 46256@debbugs.gnu.org, andrewjmoreton@gmail.com, pipcet@gmail.com, akrl@sdf.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed Mar 10 18:14:34 2021 Return-path: Envelope-to: geb-bug-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 1lK2Pq-00009V-6j for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 10 Mar 2021 18:14:34 +0100 Original-Received: from localhost ([::1]:54880 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lK2Pp-0005yf-1P for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 10 Mar 2021 12:14:33 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:57392) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lK28s-0007No-F6 for bug-gnu-emacs@gnu.org; Wed, 10 Mar 2021 11:57:02 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:40189) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lK28r-0005zj-S6 for bug-gnu-emacs@gnu.org; Wed, 10 Mar 2021 11:57:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lK28r-0002JQ-Qc for bug-gnu-emacs@gnu.org; Wed, 10 Mar 2021 11:57:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Alan Mackenzie Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 10 Mar 2021 16:57:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 46256 X-GNU-PR-Package: emacs Original-Received: via spool by 46256-submit@debbugs.gnu.org id=B46256.16153953888849 (code B ref 46256); Wed, 10 Mar 2021 16:57:01 +0000 Original-Received: (at 46256) by debbugs.gnu.org; 10 Mar 2021 16:56:28 +0000 Original-Received: from localhost ([127.0.0.1]:51735 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lK28F-0002IZ-HP for submit@debbugs.gnu.org; Wed, 10 Mar 2021 11:56:28 -0500 Original-Received: from colin.muc.de ([193.149.48.1]:62872 helo=mail.muc.de) by debbugs.gnu.org with smtp (Exim 4.84_2) (envelope-from ) id 1lK28D-0002IM-Bv for 46256@debbugs.gnu.org; Wed, 10 Mar 2021 11:56:21 -0500 Original-Received: (qmail 58038 invoked by uid 3782); 10 Mar 2021 16:56:14 -0000 Original-Received: from acm.muc.de (p4fe15e8b.dip0.t-ipconnect.de [79.225.94.139]) (using STARTTLS) by colin.muc.de (tmda-ofmipd) with ESMTP; Wed, 10 Mar 2021 17:56:14 +0100 Original-Received: (qmail 9942 invoked by uid 1000); 10 Mar 2021 16:56:14 -0000 Content-Disposition: inline In-Reply-To: <83y2evnltw.fsf@gnu.org> X-Submission-Agent: TMDA/1.3.x (Ph3nix) X-Primary-Address: acm@muc.de X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:202019 Archived-At: Hello, Eli. On Wed, Mar 10, 2021 at 16:07:55 +0200, Eli Zaretskii wrote: > > Date: Wed, 10 Mar 2021 13:14:16 +0000 > > Cc: akrl@sdf.org, 46256@debbugs.gnu.org, andrewjmoreton@gmail.com, > > pipcet@gmail.com > > From: Alan Mackenzie > > > Answering my own question here: it can easily happen due to use of > > > cc-require in cc-*.el files. Alan, why does CC mode use this > > > technique? what is the purpose of always loading a Lisp file even if > > > it was already loaded? > > Are you sure? cc-require is intended just to compile a `require' form > > (OK, it compiles (progn nil (require 'cc-vars)), but the byte compiler > > will optimise the progn away). > We are not talking about compilation, we are talking about loading > cc-* files. The cc-*.el files? The cc-*.elc files simply have compiled `require's in them and shouldn't be reloading already loaded .elc files. I don't know anything about the cc-*.eln files. > When we process cc-require, we end up loading the required CC mode > file, even though it is already loaded. Yes, if it is processed while loading the source .el file. This is a facility designed for CC Mode hackers, in particular Martin S., whose working style apparently led to him switching source directories frequently. > > When loading uncompiled cc-*.el, cc-require does fancy things to make > > sure the cc-*.el is in the "correct" directory, but it shouldn't compile > > any of this into the *.elc. Maybe there's a bug, somewhere. > > The code in this area was written by Martin Stjernholm (my predecessor), > > who was evidently having trouble with "wrong" versions of the *.el files > > getting loaded. > > I've had a bit of a look at the thread for bug #46256, but I can't really > > follow it, at least not without a lot of effort. Might it be that the > > ..eln compiler is doing things on the .el file? I'm not at all familiar > > with how the native compilation works, I'm afraid. > Maybe. Andrea, could you take a look at what happens with cc-require > in the native-comp branch? -- Alan Mackenzie (Nuremberg, Germany).