On 30.04.2019 18:25, Eli Zaretskii wrote:
>> From: LRN
>> Date: Tue, 30 Apr 2019 16:05:55 +0300
>>
>>>  - IIRC, Cygwin uses the same w32api headers as mingw.org.  I don't know
>>>    whether Cygwin sets _WIN32_WINNT to a higher number already; we
>>>    haven't heard any complaints, so I guess it does.
>>>
>>
>> Cygwin uses mingw-w64.
> 
> Maybe I'm missing something, but I don't think this is relevant.
> _WIN32_WINNT is not a MinGW invention, it's an official symbol in
> Windows headers, so all Windows compilers need to support it in the
> same way and with the same semantics.  The only difference is the
> default value.
> 
> Am I missing something?
> 

I replied to the "Cygwin uses the same w32api headers as mingw.org" part only.