Re: scratch/accurate-warning-pos: Solid progress: the branch now bootstraps.

[Alan Mackenzie <acm@muc.de>]

Hello again, Eli.

On Sun, Nov 25, 2018 at 18:23:30 +0000, Alan Mackenzie wrote:
> On Sun, Nov 25, 2018 at 20:15:30 +0200, Eli Zaretskii wrote:
> > > Date: Sun, 25 Nov 2018 17:59:29 +0000
> > > From: Alan Mackenzie <acm@muc.de>
> > > Cc: cpitclaudel@gmail.com, charles@aurox.ch, michael_heerdegen@web.de,
> > > 	emacs-devel@gnu.org, schwab@linux-m68k.org, monnier@IRO.UMontreal.CA

[ .... ]

> > As I said, I'd be very surprised if using DEFVAR_BOOL would slow down
> > what you did in any significant way, beyond the slowdown due to the
> > comparison and struct member access.

> I'll time it, then we'll know.

[ .... ]

> > > I'm still a little confused as to what a DEFVAR_BOOL is.

> > It's a C 'bool'.  Look at defvar_bool the function: its last argument
> > is a pointer to the C counterpart of a DEFVAR_BOOL.

> > You can also use ptype in the debugger to see what it really is, if
> > you want to be absolutely sure.

> OK, thanks for the explanation.  I'll change the declaration of that
> variable (and another one) to DEFVAR_BOOL, and tidy up lisp.h to match.

> Then I'll time the resulting Emacs again.  :-)

DONE.  The resulting Emacs with DEFVAR_BOOL took just the same amount of
time to bootstrap as the same code with DEFVAR_LISP, to within
measurement error.

So, I'll commit the version with the DEFVAR_BOOLs.

> -- 
> Alan Mackenzie (Nuremberg, Germany).