bug#46790: 28.0.50; make install with native-comp branch

[Eli Zaretskii]

> From: Thierry Volpiatto <thievol@posteo.net>
> Cc: Phil Sainty <psainty@orcon.net.nz>, 46790@debbugs.gnu.org, akrl@sdf.org
> Date: Sun, 25 Apr 2021 18:21:41 +0000
> 
> >   M-: (file-truename (expand-file-name invocation-name 
> > invocation-directory)) RET
> 
> With my emacs started from PATH with "emacs" where emacs is a symlink:
> 
>     /usr/local/sbin/emacs-28.0.50/emacs-28.0.50
> 
> which is the correct path:
> 
>     (expand-file-name invocation-name invocation-directory)
> 
> ==>/usr/local/bin/emacs
> 
>     (file-truename "/usr/local/bin/emacs")
> 
> ==> /usr/local/sbin/emacs-28.0.50/emacs-28.0.50

This is the same executable file name using which to start the
interactive session does work, as far as I remember.  So I don't
understand why async-start crashes, sounds like an unrelated issue
with the native-comp feature.