GNU bug report logs - #14876
24.3; load-path and environment variable EMACSLOADPATH

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Glenn Morris <rgm <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#14876: closed (24.3; load-path and environment variable
 EMACSLOADPATH)
Date: Thu, 14 Nov 2013 08:40:03 +0000

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Your message dated Thu, 14 Nov 2013 03:39:42 -0500
with message-id <4qppq3bcmp.fsf <at> fencepost.gnu.org>
and subject line Re: bug#14876: 24.3; load-path and environment variable EMACSLOADPATH
has caused the debbugs.gnu.org bug report #14876,
regarding 24.3; load-path and environment variable EMACSLOADPATH
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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From: "Roland Winkler" <winkler <at> gnu.org>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.3; load-path and environment variable EMACSLOADPATH
Date: Mon, 15 Jul 2013 17:41:07 -0500

The node "Library Search" suggests to to set EMACSLOADPATH to some
user directory such as /home/foo/.emacs.d/lisp. Yet this does not
agree with the docstring of load-path and emacs fails miserably if
one uses

  export EMACSLOADPATH=/home/foo/.emacs.d/lisp

The proper meaning of EMACSLOADPATH seems to be the one given in the
docstring of load-path saying that EMACSLOADPATH overrides the
default value of load-path specified by file `epaths.h' when Emacs
was built.

The docstring of load-path also says that an element `nil' means
"try default directory". Yet what is the "default directory" in this
context?  default-directory is a buffer-local variable with default nil.

I looked into this because I was looking for a way to _extend_ the
emacs load path in a Makefile generated via autoconf.
Autoconf uses the shell script elisp-comp to compile lisp files.
This script uses

  echo "(setq load-path (cons nil load-path))" > script
  $EMACS -batch -q -l script -f batch-byte-compile *.el || exit $?

In such a hard-coded setting I cannot (easily) extend the load-path via
the emacs option --load.  But the purpose of loading the file script
is not clear to me either.


In GNU Emacs 24.3.1 (x86_64-unknown-linux-gnu, GTK+ Version 2.20.1)
 of 2013-03-27 on regnitz
Windowing system distributor `The X.Org Foundation', version 11.0.10706000
System Description:	Ubuntu 10.04.4 LTS

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From: Glenn Morris <rgm <at> gnu.org>
To: 14876-done <at> debbugs.gnu.org
Subject: Re: bug#14876: 24.3; load-path and environment variable EMACSLOADPATH
Date: Thu, 14 Nov 2013 03:39:42 -0500

Version: 24.4

I finally got round to updating the "Library Search" section.

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