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Re: improper guards on tzname/tzset

From: Yaakov Selkowitz <yselkowitz at cygwin dot com>
To: newlib at sourceware dot org
Date: Thu, 11 Feb 2016 23:14:30 -0600
Subject: Re: improper guards on tzname/tzset
Authentication-results: sourceware.org; auth=none
References: <56BD36E7 dot 9090603 at oarcorp dot com>

On 2016-02-11 19:35, Joel Sherrill wrote:

I think there are improper standards guards around tzset()
and tzname. They appear to be turned off for -std=c99 and
setting _XOPEN_SOURCE has no impact.

glibc has them off for -stdc=c99 along and on when adding
-D_XOPEN_SOURCE=700.

Based on the change history on the following page, I think
they should be turned on anytime _POSIX_C_SOURCE is set.

I'm working on an overhaul of the feature test macros and these shouldbe covered thereby.


--
Yaakov

References:
- improper guards on tzname/tzset
  - From: Joel Sherrill

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