bug#32444: 27.0.50; lisp.h XCAR compilatiob warning

[Lars Ingebrigtsen]

Live System User <nyc4bos@aol.com> writes:

>         Compilation gives various warnings:
>
> In file included from dbusbind.c:26:0:
> dbusbind.c: In function ‘xd_signature’:
> lisp.h:379:38: warning: potential null pointer dereference 
> [-Wnull-dereference]
>  #define lisp_h_XCAR(c) XCONS (c)->u.s.car
>                         ~~~~~~~~~~~~~~^~
> lisp.h:1280:10: note: in expansion of macro ‘lisp_h_XCAR’
>    return lisp_h_XCAR (c);
>           ^~~~~~~~~~~

Yes, I'm seeing the same thing.  Is this due to an old version of gcc or
something?  I'm using "gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516".

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no