Re: make check produces 25 failures and hangs (bug #65176).

[Eli Zaretskii <eliz@gnu.org>]

> Date: Sun, 13 Aug 2023 12:59:26 +0200
> Cc: acm@muc.de, yandros@gmail.com, emacs-devel@gnu.org,
>  Po Lu <luangruo@yahoo.com>
> From: Jens Schmidt <jschmidt4gnu@vodafonemail.de>
> 
> On 2023-08-12  21:09, Andrea Corallo wrote:
> 
> > To a very quick look seems to me `comp-subr-trampoline-install' is just
> > not called as it should.  AFAIR it should be called from Ffset, I'm
> > really wondering what could have happened.
> 
> Probably because native-comp-enable-subr-trampolines equals nil in an
> "emacs-master -Q"?
> 
> When I compare the following snippet from emacs-master/lisp/loadup.el:
> 
>          (when (and (featurep 'native-compile)
>                     (equal dump-mode "pdump"))
>            ;; Don't enable this before bootstrap is completed, as the
>            ;; compiler infrastructure may not be usable yet.
>            (setq comp-enable-subr-trampolines t))
>                  ^^^^
> 
> to emacs-29:
> 
>        (when (and (featurep 'native-compile)
>                   (equal dump-mode "pdump"))
>          ;; Don't enable this before bootstrap is completed, as the
>          ;; compiler infrastructure may not be usable yet.
>          (setq native-comp-enable-subr-trampolines t))
>                ^^^^^^^^^^^


These two are supposed to be aliases (the comp-enable-subr-trampolines
one is the old name, the other one is the new name).

If the alias is missing, we should restore it, in addition to fixing
the name we use in startup.el.