Re: VM 8.2.0b: vm-pcrisis.el - fails to compile in emacs 26.3 - "&optional &rest"

[Mark Diekhans]

It compiles fine on emacs 27.2

Diagon <nongnu.org@niwas.net> writes:
>  ---- On Mon, 03 May 2021 19:12:03 -0700 Diagon <nongnu.org@niwas.net> wrote 
> ----
>  > VM 8.2.0b and emacs 26.3.  Running make on the lisp files fails on 
> vm-pcrisis:
>  > 
>  >    vm-pcrisis.el:1217:28:Error: Variable name missing after &optional
>  >    make: *** [Makefile:114: vm-pcrisis.elc] Error 1
> 
> That error appears in emacs' bytecomp.el, in the function 
> byte-compile-check-lambda-list.  There have been recent changes to that 
> function, which appear some time before emacs 28. That error message is 
> removed.
> 
> https://github.com/emacs-mirror/emacs/blob/master/lisp/emacs-lisp/bytecomp.el
> 
> So I'm not clear if I have any choice but to migrate to a newer version of 
> emacs?  Or is there some other way around this?  Is it possible to just 
> upgrade the emacs lisp files?
>  
>  > It appears it doesn't like "&optional &rest" in the function 
> vmpc-none-true-yet.  Does anyone have a suggestion of how to fix?
>  > 
>  > This is Ubuntu 20.04.  Oddly I was using emacs 26.3 on Ubuntu 16.04 and 
> didn't have any trouble there.
>  > 
>  > /D
>  > 
>  > PS.  Lines 229 and 236 have been inserted by mistake, creating a warning.
> 
>