Re: master 2c8b09b06e7: Fix crash on Windows 9X

[Eli Zaretskii <eliz@gnu.org>]

> From: Po Lu <luangruo@yahoo.com>
> Cc: emacs-devel@gnu.org
> Date: Tue, 06 Dec 2022 12:56:46 +0800
> 
> Stefan Monnier <monnier@iro.umontreal.ca> writes:
> 
> >> --- a/src/emacs.c
> >> +++ b/src/emacs.c
> >> @@ -1924,6 +1924,12 @@ Using an Emacs configured with --with-x-toolkit=lucid does not have this problem
> >>  	 Vcoding_system_hash_table.  */
> >>        syms_of_coding ();	/* This should be after syms_of_fileio.  */
> >>        init_frame_once ();       /* Before init_window_once.  */
> >> +      /* init_window_once calls make_initial_frame, which calls
> >> +	 Fcurrent_time and bset_display_time, both of which allocate
> >> +	 bignums.  Without the following call to init_bignums, crashes
> >> +	 happen on Windows 9X after dumping when GC tries to free a
> >> +	 pointer allocated on the system heap.  */
> >> +      init_bignum ();
> >>        init_window_once ();	/* Init the window system.  */
> >>  #ifdef HAVE_WINDOW_SYSTEM
> >>        init_fringe_once ();	/* Swap bitmaps if necessary.  */
> >
> > I feel like I'm missing something: this adds a call to `init_bignum`
> > whereas I expected the patch to *move* the call.
> > Was this call simply missing?
> >
> >
> >         Stefan
> 
> No.  The call I added is only called before dumping, while the second is
> called after dumping, AFAIK.

No, the second one is done both before and after dumping.  Only the first
call is conditioned.