From: Jonas Bernoulli <jonas@bernoul.li>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 58073@debbugs.gnu.org
Subject: bug#58073: 29.0.50; Uninstalled emacs sends startup messages to stderr
Date: Sun, 25 Sep 2022 20:30:05 +0200 [thread overview]
Message-ID: <87mtanmhn6.fsf@bernoul.li> (raw)
In-Reply-To: <83tu4vl9wr.fsf@gnu.org>
>> Due to reasons that aren't important here, I recently had to replace the
>> symlink with a wrapper script, and that resulted in these messages being
>> send to stderr.
I was very wrong about that not being important here.
Installing emacs using guix sets EMACSLOADPATH in a file that is sourced
by the shells startup file. To me it looks like they are abusing this
variable; it makes it impossible to use an emacs that wasn't installed
using guix, without something to counter their modification. I did that
with a wrapper script.
The value that is set somewhere in the shell's init files is something
like "/home/jonas/.guix-home/profile/share/emacs/site-lisp". It doesn't
contain an empty element, which would "stand for the default value of
`load-path'", according to (info "(emacs)General Variables").
The side startup file is located inside this directory and contains
(when (require 'guix-emacs nil t)
(guix-emacs-autoload-packages)
(advice-add 'package-load-all-descriptors :after
#'guix-emacs-load-package-descriptors))
The file "guix-emacs.el" is located in the same directory. So the
purpose of setting EMACSLOADPATH seems to be to allow using `require' to
load that file. This doesn't seem right to me, they could just as well
extend the load-path inside "site-lisp.el", or load their additional
init file using `load'.
To deal with the incomplete EMACSLOADPATH, as set in the shell
environment, they use a wrapper script named "emacs" and located on PATH:
#!/gnu/store/4y5m9lb8k3qkb1y9m02sw9w9a6hacd16-bash-minimal-5.1.8/bin/bash
export XDG_DATA_DIRS="/gnu/store/h6qdfd4sjdg28jq16600hcjky0cfw9gx-shared-mime-info-1.15/share:/gnu/store/bnsf9il448hl5xjavbhq3rcx355svz2v-glib-2.70.2/share:/gnu/store/7njbpmsgwmx59xn2r6q097iy2wwscb44-gtk+-3.24.30/share:/gnu/store/w0ssipd06il3kvyvqihpmw4lwbhwwfq3-emacs-28.1/share${XDG_DATA_DIRS:+:}$XDG_DATA_DIRS"
export GTK_PATH="/gnu/store/7njbpmsgwmx59xn2r6q097iy2wwscb44-gtk+-3.24.30/lib/gtk-3.0${GTK_PATH:+:}$GTK_PATH"
export PATH="$PATH${PATH:+:}/gnu/store/0c1yfbxyv877mlgychfgvmk5ha2jqh52-gzip-1.10/bin:/gnu/store/8fpk2cja3f07xls48jfnpgrzrljpqivr-coreutils-8.32/bin"
export EMACSLOADPATH="$EMACSLOADPATH${EMACSLOADPATH:+:}/gnu/store/w0ssipd06il3kvyvqihpmw4lwbhwwfq3-emacs-28.1/share/emacs/28.1/lisp"
exec -a "$0" "/gnu/store/w0ssipd06il3kvyvqihpmw4lwbhwwfq3-emacs-28.1/bin/.emacs-28.1-real" "$@"
I am under the impression that they should stop setting EMACSLOADPATH
and should either invent their own variable to replace that or load
"guix-emacs.el" using simpler means as I suggested above.
What do you think? I intend to raise the issue with the guix folks but
would first like to hear your opinion.
If I unset EMACSLOADPATH, then everything works as expected.
> Emacs has special support for running from the build tree, but in your
> case it somehow doesn't realize that.
As a side-note, the wrapper script that I previously used looked like
this:
#!/bin/sh
export EMACSLOADPATH="\
/home/jonas/.guix-home/profile/share/emacs/site-lisp:\
/home/jonas/src/emacs/emacs/lisp"
exec -a "$0" "/home/jonas/src/emacs/emacs/src/emacs" "$@"
The build tree is at "/home/jonas/src/emacs/emacs"; I think the value I
set above is correct (correct me if I am wrong), so it seems that when
running from the build tree EMACSLOADPATH has to be unset; explicitly
doubling down on the defaults doesn't work. I also tried with an empty
element.
next prev parent reply other threads:[~2022-09-25 18:30 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-25 15:15 bug#58073: 29.0.50; Uninstalled emacs sends startup messages to stderr Jonas Bernoulli
2022-09-25 16:02 ` Eli Zaretskii
2022-09-25 18:30 ` Jonas Bernoulli [this message]
2022-09-26 7:56 ` Eli Zaretskii
2022-10-02 14:50 ` Jonas Bernoulli
2022-10-02 14:54 ` Eli Zaretskii
2022-10-02 20:55 ` Jonas Bernoulli
2022-10-02 22:14 ` Stefan Kangas
2022-10-03 2:30 ` Eli Zaretskii
2022-10-03 16:03 ` Jonas Bernoulli
2022-10-03 17:26 ` Eli Zaretskii
2022-10-03 18:51 ` Jonas Bernoulli
2022-10-03 19:01 ` Eli Zaretskii
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