Help with C clearenv and setenv

[Ken Brown]

On 5/31/2018 9:43 AM, Eric Blake wrote:
> On 05/30/2018 09:48 AM, Sam Habiel wrote:
>> I have code for a database I am porting to Cygwin.
>>
>> Part of that code is a clearenv() then a couple of setenvs. There is
>> an ifdef for Cygwin, as it doesn't implement clearenv.
> 
> It wouldn't be hard to implement clearenv() for a future release of 
> Cygwin, at least for a version that leaves environ pointing to a 
> 1-element array containing NULL.  A bit more effort and we could 
> probably also support glibc's notion of environ==NULL being shorthand 
> for an empty environment;

I've attempted to do this:

   https://cygwin.com/ml/cygwin-patches/2018-q2/msg00024.html

Ken

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