More C type errors by default for GCC 14

[Florian Weimer]

* Eli Zaretskii via Gcc:

>> Date: Tue, 9 May 2023 21:07:07 +0200
>> From: Jakub Jelinek <jakub@redhat.com>
>> Cc: Jonathan Wakely <jwakely.gcc@gmail.com>, arsen@aarsen.me, gcc@gcc.gnu.org
>> 
>> On Tue, May 09, 2023 at 10:04:06PM +0300, Eli Zaretskii via Gcc wrote:
>> > People who ignore warnings will use options that disable these new
>> > errors, exactly as they disable warnings.  So we will end up not
>> 
>> Some subset of them will surely do that.  But I think most people will just
>> fix the code when they see hard errors, rather than trying to work around
>> them.
>
> The same logic should work for warnings.  That's why we have warnings,
> no?

People completely miss the warning and go to great lengths to show that
what they are dealing is a compiler bug.  (I tried to elaborate on that
in <87cz394b63.fsf@oldenburg.str.redhat.com>.)  If GCC errors out, that
simply does not happen because there is no object code to examine.

Thanks,
Florian