bug#47800: bug#44128: [feature/native-comp] When invoking a symlink to the 'emacs' binary Emacs fails to start

[Eli Zaretskii]

> From: Phil Sainty <psainty@orcon.net.nz>
> Cc: jonas@bernoul.li, wilde@sha-bang.de, 47800@debbugs.gnu.org,
>  dario.gjorgjevski@gmail.com, 44128@debbugs.gnu.org, akrl@sdf.org
> Date: Sun, 18 Apr 2021 19:40:20 +1200
> 
> $ (for dir in / /home /home/phil /home/phil/bin /home/phil/emacs 
> /home/phil/emacs/native-comp/usr/local/bin 
> /home/phil/emacs/native-comp/shallow-repository/src /tmp; do echo; echo $dir; 
> cd $dir; for E in emacs emacs-native-comp emacs-28.0.50 
> emacs-native-comp-28.0.50 /home/phil/emacs/native-comp/usr/local/bin/emacs 
> /home/phil/emacs/native-comp/usr/local/bin/emacs-28.0.50 
> emacs-native-comp-uninstalled 
> /home/phil/emacs/native-comp/shallow-repository/src/emacs; do $E --batch 
> --eval "(prin1 comp-eln-load-path)"; echo " -- $E"; done; done)
> 
> Nothing failed, and for every directory the output was the same:
> 
> ("/home/phil/.emacs.d/eln-cache/" 
> "/home/phil/emacs/native-comp/usr/local/lib/emacs/28.0.50/native-lisp/") -- 
> emacs
> ("/home/phil/.emacs.d/eln-cache/" 
> "/home/phil/emacs/native-comp/usr/local/lib/emacs/28.0.50/native-lisp/") -- 
> emacs-native-comp
> ("/home/phil/.emacs.d/eln-cache/" 
> "/home/phil/emacs/native-comp/usr/local/lib/emacs/28.0.50/native-lisp/") -- 
> emacs-28.0.50
> ("/home/phil/.emacs.d/eln-cache/" 
> "/home/phil/emacs/native-comp/usr/local/lib/emacs/28.0.50/native-lisp/") -- 
> emacs-native-comp-28.0.50
> ("/home/phil/.emacs.d/eln-cache/" 
> "/home/phil/emacs/native-comp/usr/local/lib/emacs/28.0.50/native-lisp/") -- 
> /home/phil/emacs/native-comp/usr/local/bin/emacs
> ("/home/phil/.emacs.d/eln-cache/" 
> "/home/phil/emacs/native-comp/usr/local/lib/emacs/28.0.50/native-lisp/") -- 
> /home/phil/emacs/native-comp/usr/local/bin/emacs-28.0.50
> ("/home/phil/.emacs.d/eln-cache/" 
> "/home/phil/emacs/native-comp/shallow-repository/native-lisp/") -- 
> emacs-native-comp-uninstalled
> ("/home/phil/.emacs.d/eln-cache/" 
> "/home/phil/emacs/native-comp/shallow-repository/native-lisp/") -- 
> /home/phil/emacs/native-comp/shallow-repository/src/emacs

Thanks for testing, this looks very promising.