Re: Extended menu items, when are :enable and :filter computed?

[Lennart Borgman]

Richard Stallman wrote:
>     I've always viewed such a change as a performance improvement for those
>     cases where we use large dynamically-generated menus or menus with lots of
>     shortcuts to compute (X-Symbol comes to mind).
>
> Is this optimization really worth while on modern computers?
>   
Yes, I believe so. If the building involves accessing the file system 
(which is rather likely for a program like Emacs) then it could take 
some time.