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Date:	Wed, 07 Mar 2012 20:25:04 +0100
From:	Christian Franke <Christian DOT Franke AT t-online DOT de>
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To:	cygwin AT cygwin DOT com
Subject:	Re: Setting TZ may break time() in non-Cygwin programs
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Corinna Vinschen wrote:
> On Mar  4 19:42, Christian Franke wrote:
>> Corinna Vinschen wrote:
>>> On Mar  2 22:35, Christian Franke wrote:
>>>> Corinna Vinschen wrote:
>>>>> But, as usual, PTC.
>>>> OK, ...
>>>>
>>>>> Simple: Unset TZ for Win32 programs run from Cygwin.
>>>>>
>>>>> More flexible: Set (unset) TZ=CYGWIN_WINENV_TZ if this variable is
>>>>> set (to empty). Otherwise keep TZ as is.
>>>>>
>>>> would a patch for any of the above have a chance to get accepted?
>>> If it's not getting too complicated, yes.  However, the second idea
>>> I don't understand.  Can you explain this differently?
>>>
>> Let another variable change the value passed to Windows environment:
>>
>> $ printenv TZ
>> Europe/Berlin
>>
>> $ cmd /c echo %TZ%
>> Europe/Berlin
>>
>> $ export CYGWIN_WINENV_TZ=CET-1CEST
>>
>> $ printenv TZ
>> Europe/Berlin
>>
>> $ cmd /c echo %TZ%
>> CET-1CEST
>>
>> $ export CYGWIN_WINENV_TZ=
>>
>> $ cmd /c echo %TZ%
>> %TZ% (which means TZ is not set)
> Hmm.  I think just unsetting TZ should be sufficient.  MSVCRT uses the
> current timezone as default anyway, doesn't it?
>

Yes. I will post a patch soon.

Christian


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