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From: Mark Geisert <mark@maxrnd.com>
Message-ID: <17710c05-3ccc-b8de-6b8b-db022c1f1ce3@maxrnd.com>
Date: Fri, 15 Mar 2019 01:06:34 -0700
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Mark Geisert wrote:
> I believe I've found the root cause of this issue of outbound connect on a
> non-blocking socket not working under Cygwin.
[...]

Hi Tatsuro,
This Qt issue should be reported to their developers.  Do you have experience 
opening a ticket with them?  If so, please do so and let me know the ticket/bug 
number.  I will participate in discussion there.  I could also open a ticket 
myself if you prefer that I do it.

It seems to me that we should continue to apply your one-line patch that turns 
off O_NONBLOCK at that one Qt location, as a workaround for this Qt problem on 
Cygwin.  When the Qt devs fix the root cause and release a new Qt containing the 
fix, we can then remove our local patch.

..mark

Yaakov: Does this all sound reasonable to you?

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