Re: [PATCH] std-gnu23: new module

[Bruno Haible]

Paul Eggert wrote:
> as you mentioned we should use the 
> --std=gnu23 option anyway. I installed the attached to do that.

Thanks. Both patches work fine. Now the gcc option is found and activated:

  checking for /gnu-inst-gcc/15-20241113/bin/gcc -ftrapv option to enable C23 
features... -std=gnu23

IMO they are ready to sync back into Autoconf's c.m4.


In the config.log I still see a warning:

conftest.c:74:21: warning: 'null_pointer' defined but not used 
[-Wunused-const-variable=]
   74 | constexpr nullptr_t null_pointer = nullptr;
      |                     ^~~~~~~~~~~~

Maybe you want to silence that as well, just in case someone is using -Werror?


Bruno