[PATCH] Cygwin: pty: Fix segfault caused when tcflush() is called.

[Thomas Wolff]

Am 22.02.2021 um 14:57 schrieb Corinna Vinschen via Cygwin-patches:
> On Feb 22 20:41, Takashi Yano via Cygwin-patches wrote:
>> On Mon, 22 Feb 2021 10:51:19 +0100
>> Corinna Vinschen wrote:
>>> So, what do you think is the state of the console code, Takashi?
>>> Shall we start a release cycle next week?
>> I think all the fixes and improvements that come to mind at this
>> point have been completed. As for releasing, I believe I've done
>> enough testing, but honestly I'm not without anxiety because total
>> amount of changes for pty and console code is relatively large
>> since the beginning of this year.
>>
>> On the other hand, I also want people to use new features as soon
>> as possible.
> Then let's do it.  I'll start with the usual test releases...
I've downloaded yesterday's snapshot (2021-02-22) for some testing.
If I compile mintty (which passes without problem) and try to run it, it 
just exits silently (no window popped up).
After reverting to 3.1.7, it runs just fine (even the one compiled with 
the snapshot).