GNU bug report logs -
#36828
27.0.50; Uninstalled emacs shows installed documentation
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Reported by: Óscar Fuentes <ofv <at> wanadoo.es>
Date: Sun, 28 Jul 2019 15:08:01 UTC
Severity: minor
Found in version 27.0.50
Done: Óscar Fuentes <ofv <at> wanadoo.es>
Bug is archived. No further changes may be made.
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Message #81 received at 36828 <at> debbugs.gnu.org (full text, mbox):
Ping! Could we please make some progress in this matter? Can you
please answer my questions below? TIA
> Date: Tue, 30 Jul 2019 18:08:31 +0300
> From: Eli Zaretskii <eliz <at> gnu.org>
> Cc: 36828 <at> debbugs.gnu.org, stepnem <at> gmail.com
>
> > From: Óscar Fuentes <ofv <at> wanadoo.es>
> > Cc: stepnem <at> gmail.com, 36828 <at> debbugs.gnu.org
> > Date: Mon, 29 Jul 2019 23:09:09 +0200
> >
> > >> M-x describe-function shows the docstrings of the Emacs I'm executing,
> > >
> > > How do you know? What is the value of doc-directory?
> >
> > /home/oscar/dev/emacs/stable/build/etc/
> >
> > The installed version is in /usr/local.
>
> Hmm... then this is not the use case I had in mind, and some other
> factor is at work here. Your use case is supposed to be handled by
> this fragment from init_callproc:
>
> if (data_dir == 0)
> {
> Lisp_Object tem, tem1, srcdir;
> Lisp_Object lispdir = Fcar (decode_env_path (0, PATH_DUMPLOADSEARCH, 0));
>
> srcdir = Fexpand_file_name (build_string ("../src/"), lispdir);
>
> tem = Fexpand_file_name (build_string ("NEWS"), Vdata_directory);
> tem1 = Ffile_exists_p (tem);
> if (!NILP (Fequal (srcdir, Vinvocation_directory)) || NILP (tem1))
> {
> Lisp_Object newdir;
> newdir = Fexpand_file_name (build_string ("../etc/"), lispdir);
> tem = Fexpand_file_name (build_string ("NEWS"), newdir);
> tem1 = Ffile_exists_p (tem);
> if (!NILP (tem1))
> Vdata_directory = newdir;
> }
> }
>
> So somehow the call to Fequal returns nil in your case, when it
> shouldn't. Please step with a debugger into this code and see why it
> fails to detect that you are invoking Emacs from the source directory.
> My crystal ball says some symlinks are involved.
>
> > A quick look at info.el hints that data-directory is also used for
> > locating the info file.
>
> Only for the NS build.
>
> > The change would amount to determine if we are running from an
> > uninstalled build and, if positive, set data-directory et al. to the
> > values they would have if no installed instance existed.
>
> That's the code above, but it somehow isn't working in your case.
This bug report was last modified 5 years and 280 days ago.
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