Re: How can Autoconf help with the transition to stricter compilation defaults?

On Tue, Nov 15, 2022 at 15:09:19 -0800, Paul Eggert wrote:
> This may be a hack, but it's a *good* hack. It's likely to fix 
> real-world bugs that would be caused if Clang becomes overly pedantic by 
> default here. And the probability of introducing real-world bugs is 
> essentially zero.

FWIW, CMake uses the same signature for detecting whether a function
exists or not:

    https://gitlab.kitware.com/cmake/cmake/-/blob/master/Modules/CheckFunctionExists.c

It's also been like this (without the `void`) for 20 years; the `void`
argument was added 6 years ago:

    https://gitlab.kitware.com/cmake/cmake/-/commits/master/Modules/CheckFunctionExists.c

--Ben