Re: [PATCH] mkstemp: fix _POSIX_C_SOURCE value for mkstemp()

[Quentin Rameau <quinq-UlqG2OPX9a0ue8ZPuPpd/Q@public.gmane.org>]

Hi, thanks for the response!

> On 08 Jul 2016 02:06, Quentin Rameau wrote:
> > Here are more informations to save you the time searching for it.
> > Introduced in f095bb7 (2010-01-09) in stdlib/stdlib.h line 609:
> > 
> > +#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED \
> > +    || defined __USE_XOPEN2K8
> > [..]
> > extern int mkstemp (char *__template) __nonnull ((1)) __wur;
> > 
> > And in include/features.h (from glibc 2.12 e28c887):
> > 
> > #if (_POSIX_C_SOURCE - 0) >= 200112L
> > # define __USE_XOPEN2K		1
> > # undef __USE_ISOC95
> > # define __USE_ISOC95		1
> > # undef __USE_ISOC99
> > # define __USE_ISOC99		1
> > #endif
> > 
> > #if (_POSIX_C_SOURCE - 0) >= 200809L
> > # define __USE_XOPEN2K8		1
> > # undef  _ATFILE_SOURCE
> > # define _ATFILE_SOURCE	1
> > #endif
> 
> what is it you're trying to report ?  the man page already reads:
>        mkstemp():
>            _XOPEN_SOURCE >= 500
>                || /* Since glibc 2.12: */ _POSIX_C_SOURCE >= 200112L
>                || /* Glibc versions <= 2.19: */ _SVID_SOURCE || _BSD_SOURCE

Yes, that's the whole point, it is incorrect!
mkstemp is declared with __USE_XOPEN2K8 defined, which occurs when
_POSIX_C_SOURCE is defined to 200809L, not 200112L as it is incorrectly
stated in the current manpage version.

> can you attach a patch ?
> -mike

Of course, already did that in fact, that's the first mail of the
thread.
I can link the marc.info archive to you if that can help:
http://marc.info/?l=linux-man&m=146737548209893

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