unofficial mirror of emacs-devel@gnu.org 
 help / color / mirror / code / Atom feed
From: Andrea Corallo <akrl@sdf.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: Liliana Marie Prikler <liliana.prikler@gmail.com>,
	emacs-devel@gnu.org, larsi@gnus.org, monnier@iro.umontreal.ca,
	rlb@defaultvalue.org
Subject: Re: Finalizing 'inhibit-automatic-native-compilation'
Date: Mon, 06 Feb 2023 10:21:36 +0000	[thread overview]
Message-ID: <xjfsffj6qmn.fsf@ma.sdf.org> (raw)
In-Reply-To: <83a61tthu7.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 04 Feb 2023 20:18:24 +0200")

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Liliana Marie Prikler <liliana.prikler@gmail.com>
>> Cc: Andrea Corallo <akrl@sdf.org>, Lars Ingebrigtsen <larsi@gnus.org>, 
>>  Stefan Monnier <monnier@iro.umontreal.ca>, Rob Browning
>>  <rlb@defaultvalue.org>
>> Date: Sat, 04 Feb 2023 18:48:34 +0100
>> 
>> Since I am on the Guix team for Emacs packaging, I'll try to lay out
>> some concerns both from the perspective of a user and a downstream
>> packager.  I hope I'm not too late to the party.
>
> Thank you for your feedback.
>
>> >   . Do people actually use 'inhibit-automatic-native-compilation' or
>> >     the corresponding environment variable?  If so, for what reasons,
>> >     and why tweaking 'native-comp-eln-load-path' to direct the *.eln
>> >     files to some other place, including the temporary-file
>> > directory,
>> >     was not enough?
>> On Guix, I want my Emacs packages to either (1) already have been
>> natively compiled when using `guix install some-emacs-package' or (2)
>> to not natively compile anything and clutter my user-emacs-directory. 
>> Now the concern about clutter is somewhat secondary to Emacs spending
>> time that some other Emacs could have spent on CI.  (We don't do native
>> compilation on CI *yet*, but imho it would be worth doing for some
>> packages)
>
> That's fine.  Disabling native compilation will continue be supported,
> of course, for any number of reasons.
>
>> >   . What do we want to do about compiling trampolines when
>> >     native-compilation is disabled?
>> In my opinion, there should be a way to generate these trampolines
>> ahead of time in a known location (e.g. $package-trampolines.so) for
>> the emacs package $package.  If no such trampoline is found and native-
>> compilation is disabled, no compilation should take place.
>
> Andrea, I think comp-compile-all-trampolines fits this bill?

Yes I believe so.

> That is,
> if I load a package, then invoke that function, it will compile all
> the trampolines that are not already compiled?

Yes, it will compile all trampolines that are needed *and* are not found
to be already compiled.  If comp-compile-all-trampolines was used before
all trampolines are already available and no trampoline compilation will
be performed.

>> >   . Do we want to keep the EMACS_INHIBIT_AUTOMATIC_NATIVE_COMPILATION
>> >     environment variable?
>> > 
>> >     I dislike having environment variables that alter Emacs behavior,
>> >     because environment variables are inherited by sub-processes.  So
>> >     having this variable set runs the risk of affecting all the
>> >     sub-processes, something that could be unexpected and is not easy
>> >     to prevent.  We had similar problems with EMACSLOADPATH, for
>> >     example, which is especially painful when building another
>> > version
>> >     of Emacs from a shell buffer inside Emacs.  This causes some
>> >     hard-to-debug problems.
>> >     So if this environment variable is largely unused, maybe we
>> > should
>> >     remove it, even if we keep 'inhibit-automatic-native-
>> > compilation'.
>> I don't think a variable is needed necessarily.  What is needed is a
>> method of enabling it reliably on the command line (i.e. a switch like
>> --no-native-compilation would work, but so would --eval '(setq inhibit-
>> automatic-native-compilation t)'), and reliably as a user editing just
>> Emacs configuration files (in particular, early-init.el seems like the
>> place I would naturally place it in).
>
> We already have (and will keep supporting) a way of disabling native
> compilation, and/or the compilation of trampolines, via --eval.
>
> Thanks.
>

Andrea



  reply	other threads:[~2023-02-06 10:21 UTC|newest]

Thread overview: 146+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-27 12:57 Finalizing 'inhibit-automatic-native-compilation' Eli Zaretskii
2023-01-27 14:19 ` Andrea Corallo
2023-01-27 23:11 ` Stephen Leake
2023-01-27 23:58   ` Stefan Monnier
2023-01-28  0:32     ` Stephen Leake
2023-01-28  8:31       ` Eli Zaretskii
2023-01-28  8:08   ` Eli Zaretskii
2023-01-29 21:42     ` Stephen Leake
2023-01-27 23:57 ` Stefan Monnier
2023-01-28  9:17   ` Eli Zaretskii
2023-01-28 17:00     ` Stefan Monnier
2023-01-28 17:09       ` Eli Zaretskii
2023-01-28 17:42         ` Stefan Monnier
2023-01-28 17:54           ` Eli Zaretskii
2023-01-28 18:00             ` Stefan Monnier
2023-01-28 18:09               ` Eli Zaretskii
2023-01-28 21:41                 ` Andy Moreton
2023-01-29  6:46                   ` Eli Zaretskii
2023-01-29 11:46                     ` Andy Moreton
2023-01-28 22:24                 ` Stefan Monnier
2023-01-29  6:25                   ` Eli Zaretskii
2023-01-29 14:58                     ` Stefan Monnier
2023-01-29 15:30                       ` Eli Zaretskii
2023-01-30  2:30                         ` Stefan Monnier
2023-01-30 12:47                           ` Eli Zaretskii
2023-01-30 14:57                             ` Stefan Monnier
2023-01-30 17:07                               ` Eli Zaretskii
2023-01-30 17:18                                 ` Stefan Monnier
2023-01-31  4:19                               ` Richard Stallman
2023-01-31 14:26                                 ` Stefan Monnier
2023-02-01  5:04                                   ` Richard Stallman
2023-02-04 19:55                                     ` Lynn Winebarger
2023-02-04 20:08                                       ` Eli Zaretskii
2023-02-04 22:05                                         ` Lynn Winebarger
2023-02-05  7:40                                           ` Eli Zaretskii
2023-02-05 16:22                                             ` Lynn Winebarger
2023-02-06 10:15                                             ` Andrea Corallo
2023-02-06 10:25                                               ` Andrea Corallo
2023-02-06 13:05                                               ` Eli Zaretskii
2023-02-06 13:37                                                 ` Lynn Winebarger
2023-02-06 14:07                                                   ` Eli Zaretskii
2023-02-06 14:29                                                     ` Lynn Winebarger
2023-02-06 15:28                                                       ` Eli Zaretskii
2023-02-07  3:57                                                         ` Lynn Winebarger
2023-02-06 15:26                                               ` Lynn Winebarger
2023-02-02  5:18                           ` Sean Whitton
2023-02-02  7:55                             ` Eli Zaretskii
2023-02-02 16:17                               ` Sean Whitton
2023-02-06 10:57                                 ` Aymeric Agon-Rambosson
2023-02-06 14:29                                   ` Eli Zaretskii
2023-02-07  3:39                                     ` Aymeric Agon-Rambosson
2023-02-07 12:49                                       ` Eli Zaretskii
2023-02-09  8:40                                         ` Aymeric Agon-Rambosson
2023-02-09 10:11                                           ` Eli Zaretskii
2023-02-09 21:07                                             ` Sean Whitton
2023-02-10  8:13                                               ` Eli Zaretskii
2023-02-10  8:37                                             ` Aymeric Agon-Rambosson
2023-02-10 16:53                                               ` Andrea Corallo
2023-02-10 17:34                                                 ` Aymeric Agon-Rambosson
2023-02-11  8:11                                                   ` Andrea Corallo
2023-02-11 10:06                                                     ` Aymeric Agon-Rambosson
2023-02-11 10:44                                                       ` Eli Zaretskii
2023-02-12 16:47                                                         ` Aymeric Agon-Rambosson
2023-02-12 16:55                                                           ` Eli Zaretskii
2023-02-12 19:58                                                             ` Aymeric Agon-Rambosson
2023-02-12 20:09                                                               ` Eli Zaretskii
2023-02-14 10:36                                                                 ` Aymeric Agon-Rambosson
2023-02-14 13:51                                                                   ` Eli Zaretskii
2023-02-15 22:39                                                                     ` Aymeric Agon-Rambosson
2023-02-16  8:04                                                                       ` Eli Zaretskii
2023-02-17  8:15                                                                         ` Eli Zaretskii
2023-02-17 10:16                                                                           ` Andrea Corallo
2023-02-17 14:17                                                                             ` Eli Zaretskii
2023-02-18 21:48                                                                               ` Andrea Corallo
2023-02-19  9:21                                                                                 ` Eli Zaretskii
2023-02-20  9:14                                                                                   ` Andrea Corallo
2023-02-20 12:02                                                                                     ` Eli Zaretskii
2023-02-09 21:05                                       ` Sean Whitton
2023-02-10  8:08                                         ` Eli Zaretskii
2023-02-10 22:13                                           ` Sean Whitton
2023-02-11  9:16                                             ` Eli Zaretskii
2023-02-13 22:57                                               ` Sean Whitton
2023-02-14  5:17                                                 ` tomas
2023-02-14 13:21                                                   ` Eli Zaretskii
2023-02-14 11:29                                                 ` Andrea Corallo
2023-02-14 17:11                                                   ` Sean Whitton
2023-02-16 18:10                                                   ` Sean Whitton
2023-02-17  9:00                                                     ` Andrea Corallo
2023-02-17 16:42                                                       ` Sean Whitton
2023-02-17 19:18                                                         ` Eli Zaretskii
2023-02-17 21:13                                                         ` Bug#1021842: " Tatsuya Kinoshita
2023-02-18 21:56                                                           ` Andrea Corallo
2023-02-19  4:22                                                             ` Stefan Monnier
2023-02-20  9:03                                                               ` Andrea Corallo
2023-02-20 12:01                                                                 ` Eli Zaretskii
2023-02-20 15:42                                                                   ` Andrea Corallo
2023-02-20 16:02                                                                     ` Stefan Monnier
2023-02-20 20:22                                                                       ` Andrea Corallo
2023-02-20 16:57                                                                     ` Eli Zaretskii
2023-02-20 20:29                                                                       ` Andrea Corallo
2023-02-20 12:48                                                                 ` Stefan Monnier
2023-02-20 16:07                                                                   ` Andrea Corallo
2023-02-20 17:24                                                                     ` tomas
2023-02-07 13:56                                   ` Andrea Corallo
2023-02-07 15:03                                     ` Stefan Monnier
2023-02-07 15:27                                       ` Andrea Corallo
2023-02-09  7:26                                     ` Aymeric Agon-Rambosson
2023-02-09  7:52                                       ` Eli Zaretskii
2023-02-10  8:04                                         ` Aymeric Agon-Rambosson
2023-02-10  8:46                                           ` Eli Zaretskii
2023-02-10 17:02                                             ` Andrea Corallo
2023-02-02  5:40 ` Sean Whitton
2023-02-02  8:02   ` Eli Zaretskii
2023-02-02  8:41     ` tomas
2023-02-02  9:18       ` Eli Zaretskii
2023-02-02 16:28     ` Sean Whitton
2023-02-02 17:21       ` Eli Zaretskii
2023-02-09 21:12         ` Sean Whitton
2023-02-04 17:48 ` Liliana Marie Prikler
2023-02-04 18:18   ` Eli Zaretskii
2023-02-06 10:21     ` Andrea Corallo [this message]
2023-02-13 12:05 ` Andrea Corallo
2023-02-13 13:19   ` Eli Zaretskii
2023-02-13 15:21     ` Andrea Corallo
2023-02-13 15:37       ` Eli Zaretskii
2023-02-13 16:15         ` Andrea Corallo
2023-02-13 19:17   ` Stefan Monnier
2023-02-13 19:34     ` Andrea Corallo
2023-02-13 20:43       ` Stefan Monnier
2023-02-13 21:53         ` Andrea Corallo
2023-02-13 23:04           ` Stefan Monnier
2023-02-14  8:56             ` Andrea Corallo
2023-02-14 11:32             ` Andrea Corallo
     [not found]               ` <166586215062.368699.18398270685158383578.reportbug@convex>
2023-02-19 14:31                 ` Bug#1021842: " Tatsuya Kinoshita
2023-02-20  9:18                 ` Andrea Corallo
2023-02-20 12:03                   ` Eli Zaretskii
2023-02-20 20:50                 ` Bug#1021842: " Lynn Winebarger
2023-02-20 21:34                   ` Stefan Monnier
2023-02-20 22:17                     ` Lynn Winebarger
2023-02-20 22:02                 ` Bug#1021842: " Tatsuya Kinoshita
2023-02-21 15:40                 ` Andrea Corallo
2023-02-14  3:23       ` Eli Zaretskii
2023-02-14  3:31         ` Stefan Monnier
2023-02-14  8:55           ` Andrea Corallo
2023-02-14 13:11           ` Eli Zaretskii
2023-02-14 15:09             ` Stefan Monnier

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.gnu.org/software/emacs/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=xjfsffj6qmn.fsf@ma.sdf.org \
    --to=akrl@sdf.org \
    --cc=eliz@gnu.org \
    --cc=emacs-devel@gnu.org \
    --cc=larsi@gnus.org \
    --cc=liliana.prikler@gmail.com \
    --cc=monnier@iro.umontreal.ca \
    --cc=rlb@defaultvalue.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).