feature macro in time.h

[Craig Howland]

On 01/11/2014 08:38 PM, Joel Sherrill wrote:
> Hi
>
> Similar issue around tzname and tzset(). newlib has them
> as strict ansi and glibc allows them for POSIX.
>
> What should these be?
>
They are both POSIX "CX", and have been in since the beginning, so they should 
be (following the same convention agreed to in the "feature macros in stdlib.h" 
thread):
#if __POSIX_VISIBLE /* (all POSIX versions) */
(no version check needed)
Craig