bug#56502: Lucid ghosts

bug#56502: Lucid ghosts

[Alan Mackenzie]

Hello, Emacs.

While checking for Lisp hooks in the display engine, I came across some
unused variables with "lucid" in their names, namely
Vlucid_menu_bar_dirty_flag and Qrecompute_lucid_menubar.  These could
surely now be removed from Emacs, saving a small amount of space and
execution time.

A grep through the project's sources suggests there are other ghosts with
"lucid", and these could probably also be removed.

-- 
Alan Mackenzie (Nuremberg, Germany).

bug#56502: Lucid ghosts

[Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors]

Alan Mackenzie <acm@muc.de> writes:

> Hello, Emacs.
>
> While checking for Lisp hooks in the display engine, I came across some
> unused variables with "lucid" in their names, namely
> Vlucid_menu_bar_dirty_flag and Qrecompute_lucid_menubar.  These could
> surely now be removed from Emacs, saving a small amount of space and
> execution time.
>
> A grep through the project's sources suggests there are other ghosts with
> "lucid", and these could probably also be removed.

AFAIR those were left over from the original Lucid Emacs menu bar
implementation.  Nobody still uses them, so they can be deleted.

bug#56502: Acknowledgement (Lucid ghosts)

[Alan Mackenzie]

Bug fixed.

-- 
Alan Mackenzie (Nuremberg, Germany).

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bug#56502: Lucid ghosts

[Alan Mackenzie]

Hello, Po.

On Tue, Jul 12, 2022 at 10:04:52 +0800, Po Lu wrote:
> Alan Mackenzie <acm@muc.de> writes:

> > Hello, Emacs.

> > While checking for Lisp hooks in the display engine, I came across some
> > unused variables with "lucid" in their names, namely
> > Vlucid_menu_bar_dirty_flag and Qrecompute_lucid_menubar.  These could
> > surely now be removed from Emacs, saving a small amount of space and
> > execution time.

> > A grep through the project's sources suggests there are other ghosts with
> > "lucid", and these could probably also be removed.

> AFAIR those were left over from the original Lucid Emacs menu bar
> implementation.  Nobody still uses them, so they can be deleted.

Thanks for the confirmation.  I've just removed the things (in master)
and closed the bug.

-- 
Alan Mackenzie (Nuremberg, Germany).