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

[Jonathan Wakely via cfe-commits]

On Thu, 10 Nov 2022 at 17:52, Nick Bowler wrote:
> It saddens me to see so much breakage happening in "modern C", a
> language that has (until now) a long history of new language features
> being carefully introduced to avoid these sort of problems.

The features were introduced in 1999. Compilers just continued to
accept broken code, because people seem to think accepting garbage
forever is "compatibility".