autoconf 2.72 ? (Re: Happy New Year 2024 & Freeze for the upcoming glibc 2.39 release)

[Paul Eggert]

On 2024-01-02 02:27, Florian Weimer wrote:
> Does it actually change the generated script much?

I expect the main reason to change would be what Andreas mentioned, 
namely, that scripts generated by Autoconf 2.72 work with C2x compilers 
that do not accept old-style function definitions and declarations, 
whereas scripts generated by older Autoconf versions do not. This was 
the main reason that Autoconf 2.72 was created.

If memory serves, this is not an issue for gcc -std=gnu2x, which still 
supports old-style functions as an extension; but it is an issue for 
recent-enough clang.