Setting TZ may break time() in non-Cygwin programs

[Christian Franke]

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)


Christian


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