bug#44128: [feature/native-comp]

[Jonas Bernoulli]

Hello Andrea

[We talked about this briefly on Twitter;
 https://twitter.com/magit_emacs/status/1313534891506757635.]

When running gccemacs from the git repository without installing but by
using a symlink like e.g. /usr/local/bin/emacs -> ~/git/emacs/src/emacs,
then that results in an error like:

  emacs: /usr/local/bin/../native-lisp/<snip>.eln: cannot open shared
  object file: No such file or directory

You mentioned that this happens because code in pdump[er].c just relies
on invocation-directory and that you are wonder whether symlinks should
be followed to address this.

  I think they should. :D
  Please have a look.
  Thanks!
  Jonas