[PATCH] stdio.h: Use __POSIX_VISIBLE etc. guards for POSIX 1003.1:2001 functions

[Yaakov Selkowitz]

On 2016-02-04 11:07, Jon Turney wrote:
> Current mesa expects stdio.h to prototype fileno() when compiling with gcc
> -std=c99 -D_XOPEN_SOURCE

I'll be posting a complete rework of the feature test macros very soon, 
which should fix this.

-- 
Yaakov