GNU logs - #78783, boring messages

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Subject: bug#78783: 30.1.50; AOT-compiling site-lisp during the Emacs build doesn't work
Resent-From: Spencer Baugh <sbaugh@HIDDEN>
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Cc: Andrea Corallo <acorallo@HIDDEN>, app-emacs-dev@HIDDEN
From: Spencer Baugh <sbaugh@HIDDEN>
Date: Fri, 13 Jun 2025 09:34:10 -0400
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Native compilation of site-lisp directories during the Emacs build
(e.g. --with-native-compilation=aot) produces .eln files which are
unused when installed.

The reason is that the absolute file name of the site-lisp directory
differs between build-time and install-time, and therefore
comp-el-to-eln-rel-filename computes a different path hash for the files
contained in site-lisp at build-time and at install-time.

The same issue would affect AOT native compilation of all Lisp in Emacs,
except that there's a workaround built into comp-el-to-eln-rel-filename,
as explained by this comment:

     As installing .eln files compiled during the build changes their
     absolute path we need an hashing mechanism that is not sensitive
     to that.  For this we replace if match PATH_DUMPLOADSEARCH or
     *PATH_REL_LOADSEARCH with '//' before computing the hash.

In other words, file names containing e.g. "30.1.50/lisp", like
"/usr/local/share/emacs/30.1.50/lisp/foo.el", are transformed to
"//foo.el" before the path hash is computed.

I suggest the same should be done for file names containing
"30.1.50/site-lisp".  That would resolve the problem and allow site-lisp
to actually be AOT-compiled.



In GNU Emacs 30.1.50 (build 19, x86_64-pc-linux-gnu, X toolkit, cairo
 version 1.15.12, Xaw scroll bars) of 2025-05-26 built on
 igm-qws-u22796a
Repository revision: 1743ab3d48bedae367ca6a1deb3faf8f902e7d5c
Repository branch: emacs-30
Windowing system distributor 'The X.Org Foundation', version 11.0.12011000
System Description: Rocky Linux 8.10 (Green Obsidian)

Configured using:
 'configure --config-cache --with-x-toolkit=lucid --without-gpm
 --without-gconf --without-selinux --without-imagemagick --with-modules
 --with-gif=no --with-cairo --with-rsvg --without-compress-install
 --with-tree-sitter --with-native-compilation=aot
 PKG_CONFIG_PATH=/usr/local/home/garnish/libtree-sitter/0.22.6-1/lib/pkgconfig/'

Configured features:
CAIRO DBUS FREETYPE GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG LIBSYSTEMD
LIBXML2 MODULES NATIVE_COMP NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP
SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER X11 XDBE XIM
XINPUT2 XPM LUCID ZLIB

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

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From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: Spencer Baugh <sbaugh@HIDDEN>
Subject: bug#78783: Acknowledgement (30.1.50; AOT-compiling site-lisp
 during the Emacs build doesn't work)
Message-ID: <handler.78783.B.17498216744609.ack <at> debbugs.gnu.org>
References: <ier5xgz3gvh.fsf@HIDDEN>
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Date: Fri, 13 Jun 2025 13:35:03 +0000

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Message sent to bug-gnu-emacs@HIDDEN:

Subject: bug#78783: 30.1.50; AOT-compiling site-lisp during the Emacs build doesn't work
Resent-From: Eli Zaretskii <eliz@HIDDEN>
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To: Spencer Baugh <sbaugh@HIDDEN>
Cc: acorallo@HIDDEN, 78783 <at> debbugs.gnu.org, app-emacs-dev@HIDDEN
Date: Fri, 13 Jun 2025 17:58:54 +0300
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From: Eli Zaretskii <eliz@HIDDEN>
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severity 78783 wishlist
thanks

> Cc: Andrea Corallo <acorallo@HIDDEN>, app-emacs-dev@HIDDEN
> Date: Fri, 13 Jun 2025 09:34:10 -0400
> From:  Spencer Baugh via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN>
> 
> 
> Native compilation of site-lisp directories during the Emacs build
> (e.g. --with-native-compilation=aot) produces .eln files which are
> unused when installed.

Why are you compiling files in site-lisp during the build?  This is
not supported, and I see no reason why we should extend our build
processes to support it.

Why cannot you compile site-lisp files after Emacs is built and
installed?

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Date: Fri, 13 Jun 2025 17:58:54 +0300
Message-Id: <867c1felht.fsf@HIDDEN>
From: Eli Zaretskii <eliz@HIDDEN>
To: Spencer Baugh <sbaugh@HIDDEN>
In-Reply-To: <ier5xgz3gvh.fsf@HIDDEN> (bug-gnu-emacs@HIDDEN)
Subject: Re: bug#78783: 30.1.50;
 AOT-compiling site-lisp during the Emacs build doesn't work
References: <ier5xgz3gvh.fsf@HIDDEN>
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severity 78783 wishlist
thanks

> Cc: Andrea Corallo <acorallo@HIDDEN>, app-emacs-dev@HIDDEN
> Date: Fri, 13 Jun 2025 09:34:10 -0400
> From:  Spencer Baugh via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN>
> 
> 
> Native compilation of site-lisp directories during the Emacs build
> (e.g. --with-native-compilation=aot) produces .eln files which are
> unused when installed.

Why are you compiling files in site-lisp during the build?  This is
not supported, and I see no reason why we should extend our build
processes to support it.

Why cannot you compile site-lisp files after Emacs is built and
installed?

Last modified: Fri, 13 Jun 2025 15:15:06 UTC

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