Hi Paul,
> > The reason why we do this with explicit #ifs that test for a compiler
> > brand, not in an "Autoconfish way", is that we use the result in .h
> > files that should be installable
>
> That makes sense for the definition of _Noreturn in
> build-aux/snippet/_Noreturn.h, since that file is
> copied into installable .h files. But it makes less
> sense for the common Autoconf situation where _Noreturn
> is defined in <config.h>; such definitions are not intended
> to be copied into installable .h files, and it might make
> sense for Autoconf to support that.
Currently gnulib covers both use-cases well:
- use of _Noreturn in source files of the same package that don't
include <stdnoreturn.h>,
- use of 'noreturn' in installable .h files.
This is because we put the same snippet both into m4/gnulib-common.m4
(from where it goes to config.h) and into a build-aux/snippets/ file
(from where it gets copied into the installable .h file).
What kind of service from Autoconf, do you imagine, could help or simplify
this?
Bruno
