Re: [PATCH] fallthrough: update for GCC 7/8

[Paul Eggert]

Jim Meyering wrote:

> Eventually, we should consider putting it [FALLTHROUGH] somewhere common and 
> perhaps
> renaming it to have the GL_ prefix.

The former sounds good. The latter, I'm more dubious about, as the macro is 
called FALLTHROUGH in bleeding-edge Emacs source code (admittedly thanks to 
yours truly). I expect that in practice it would not make much sense nowadays to 
define the identifier FALLTHROUGH to anything else, given that C++17 has 
standardized the [[fallthrough]] attribute.