On 2024-06-08 13:31, Paul J. Lucas wrote:
It looks like -Wc23-extensions is the problem. If you stop using it (or if you
also use -std=gnu23), you shouldn't get those warnings. At least, that's the
behavior I see with clang 18.1.6 (a bit later than your clang) on Fedora.
I’m not using that option. The options I am using are:
...
-Wpedantic
-Wpedantic implies -Wc23-extensions, so omit -Wpedantic. Alternatively
you can add -std=gnu23.
In practice -Wpedantic is more trouble than it's worth, and is best
avoided. Adding -std=gnu23 can be a win, though, which is why the next
Autoconf release is planned to default to that for C compilations.
