Issue: #include <stdio.h> shall not cause intmax_t to be defined

[Corinna Vinschen]

On May  4 11:02, Sebastian Huber wrote:
> On 04/05/2022 10:54, Corinna Vinschen wrote:
> > On May  4 10:41, Sebastian Huber wrote:
> > > On 04/05/2022 10:37, Corinna Vinschen wrote:
> > > > On May  4 09:59, Sebastian Huber wrote:
> > > > > On 03/05/2022 19:00, Corinna Vinschen wrote:
> > > > > > On Apr 27 00:41, Pavel M wrote:
> > > > > > > Hi all,
> > > > > > > 
> > > > > > > Issue: #include <stdio.h> shall not cause intmax_t to be defined. However,
> > > > > > > now it causes. This is because now <stdio.h> includes <sys/types.h>, which
> > > > > > > includes <sys/_stdint.h>.
> > > > > > > Note: per C11 the types intmax_t and uintmax_t defined in the header
> > > > > > > <stdint.h>, and <stdint.h> is not included in <stdio.h>.
> > > > > > > Consider fixing.
> > > > > > I pushed a patch to fix this.
> > > > > In FreeBSD, <sys/types.h> provides the stdint.h types. Could we bring back
> > > > > this with
> > > > Is that with FreeeBSD only, or is that with BSDs in general?
> > > It seems to be a general BSD feature:
> > > 
> > > https://github.com/openbsd/src/blob/master/sys/sys/types.h#L75
> > > 
> > > http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/sys/types.h?rev=1.105&content-type=text/x-cvsweb-markup
> > If the BSDs expose stdint.h types via stdio.h anyway, what's the sense
> > of not exposing it in the non-_BSD_VISIBLE scenario?  _BSD_VISIBLE is
> > default anyway, so the non-exposure of the stdint types is restricted to
> > files which define _XOPEN_SOURCE or some such.
> > 
> > Is there actually a "MUST NOT" defined anywhere in the standards or
> > was this change unnecessary?
> 
> I think the reported problem with stdio.h is because the Newlib stdio.h
> includes <sys/types.h>. In FreeBSD for example, <sys/_types.h> is included
> with local type definitions, see:
> 
> https://sourceware.org/pipermail/newlib/2022/019592.html

I guess I'm an idiot.  I just dropped my patch and applied yours
instead. It fixes *all* the problems requiring more patches to other
files I saw while building with my change to sys/types.h.

So, I think what I'll do is revert my patch and apply yours instead.

The other patch of your patch series is obseleted by this.


Thanks a lot!


Corinna