On Sat, 28 Jun 2025, Jason Merrill wrote:

> +  if (!flag_use_cxa_atexit != !DEFAULT_USE_CXA_ATEXIT)
> +    {
> +      const char *opt, *copt;
> +      if (flag_use_cxa_atexit)
> +     opt = "-fuse-cxa-atexit", copt = "--enable-__cxa_atexit";
> +      else
> +     opt = "-fno-use-cxa-atexit", copt = "--disable-__cxa_atexit";
> +      warning (0, "ignoring %s, configure gcc with %s instead", opt, copt);
> +      flag_use_cxa_atexit = DEFAULT_USE_CXA_ATEXIT;
> +    }

The diagnostic style should use %qs for both those options.

-- 
Joseph S. Myers
josmy...@redhat.com

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