bug#37527: [PATCH] Install C source code for for debugging help

[Eli Zaretskii]

> Cc: stefan@marxist.se, michael.albinus@gmx.de, rgm@gnu.org,
>  37527@debbugs.gnu.org
> From: Paul Eggert <eggert@cs.ucla.edu>
> Date: Tue, 21 Jan 2020 16:27:41 -0800
> 
> On 1/21/20 10:04 AM, Eli Zaretskii wrote:
> > I thought your patch sets
> > source-directory to point to where the compressed sources will be
> > installed, is that not what it does?
> 
> Yes, that's what the patch typically does. However, when Emacs is run 
> out of its original source tree the code snippets you cited override the 
> typical behavior, and set source-directory to be the original source 
> tree instead of to the place where the compressed sources will be installed.

Then I still think an additional variable might be a better solution,
because the original source tree might still exist, and so losing the
information about its location would be a disadvantage.