Re: bool and C23

[Paul Eggert]

To help move ahead on this, I propose the attached patches to Gnulib. 
They use a simpler version of the Autoconf macro, named gl_C_BOOL to 
avoid collision with any future improvements to Autoconf. My hope is 
that gl_C_BOOL can be renamed to AC_C_BOOL, or something like that. The 
idea is that AC_C_BOOL assumes C99 or later; if you want to port to 
pre-C99 (which pretty much nobody does these days), you can use the 
Gnulib stdbool module.

The first patch adds a Gnulib module c-bool, which acts like the 
existing Gnulib module stdbool except it supports C23-style bool (no 
include file) instead of C99-style bool.

The second patch is mostly mechanical: it changes the other Gnulib 
modules to prefer c-bool to stdbool.

I haven't installed these.

0001-c-bool-new-module.patch
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0002-Prefer-c-bool-to-stdbool.patch
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