Mac OSX std.datetime / Posix daylight variable

[Jacob Carlborg]

On 2011-02-20 13:53, Michel Fortin wrote:
> On 2011-02-20 00:11:11 -0500, Jonathan M Davis <jmdavisProg at gmx.com> said:
>
>> Posix defines the tzset function along with a few helper items. From
>> the Linux
>> man page:
>>
>> extern int daylight;
>> extern long timezone;
>> extern char *tzname[2];
>> void tzset(void);
>>
>> It seems that while these _are_ Posix, not all Posix systems declare
>> all of them
>> (which baffles me, but that's the way it goes it seems). tzset seem
>> pretty
>> universal, and I believe that tzname is essentially universal, but I'm
>> not so
>> sure about the others.
>>
>> Currently, std.datetime uses tzset, tzname, and daylight on all Posix
>> systems.
>> It appears that for some reason, daylight is not declared on FreeBSD (
>> http://d.puremagic.com/issues/show_bug.cgi?id=5616 ). What I want to
>> confirm is
>> that this is _not_ a problem on Mac OS X.
>>
>> As I understand it, std.datetime has been working just fine on Mac OS
>> X, which
>> would indicate that daylight _is_ declared on Mac OS X. Can anyone
>> confirm this?
>> If it is indeed the case, I'd like to have daylight added to druntime
>> (where it
>> belongs) for OSX. But if it's not actually on OSX, then we definitely
>> don't want
>> to declare it there.
>
> time.h has daylight in the Mac OS X 10.6 SDK:
>
> extern int daylight;

All those four mentioned above is available both on Mac OS X 10.5 and 10.6.

-- 
/Jacob Carlborg