Re: git: cd0727ec709b - main - libc: Add <stdio.h> C23 feature test macro

On 15 Aug 2026, at 20:00, Robert Clausecker <fuz@fuz.su> wrote:
> 
> Hi Dimitry,
> 
> The test used by this package seems defective.
> I don't think we should try to support such defective code.
> Perhaps the gmp source can be patched to check for
> __STDC_VERSION_STDIO_H__?

Of course it could, and the patch is pretty simple. But I do not agree
that the code is "defective". Before C23, there was no standard way of
checking whether you had FILE declared.

So this part of gmp, while admittedly ugly, is a fine way to work around
the fact there was no standard. It simply enumerates defines which have
been available for years, or even decades. I would call it "effective",
not "defective". :-)

That said, I have applied such a patch locally, and it seems to work.
But obviously a maintainer of a port would say "this has worked for 20
years, why change it now" ? :)

-Dimitry