Patch request to qt 5.9.4

[Mark Geisert]

Tatsuro MATSUOKA wrote:
> ----- Original Message -----
>
>> From: Tatsuro MATSUOKA
>> To: Mark Geisert  cygwin
>> Cc:
>> Date: 2019/3/12, Tue 17:25
>> Subject: Re: Patch request to qt 5.9.4
>>
>> ----- Original Message -----
>>
>>>  From: Mark Geisert
>>>  To: cygwin
>>>  Cc:
>>>  Date: 2019/3/12, Tue 17:04
>>>  Subject: Re: Patch request to qt 5.9.4
>>>
>>>  On Tue, 12 Mar 2019, Tatsuro MATSUOKA wrote:
>>>  [...]
>>>>>   From: Mark Geisert
>>>>>   If it's not too much trouble, could you show what you tell
>> gnuplot
>>>  and how
>>>>>   you
>>>>>   set up the Qt environment?  Are you running gnuplot from inside
>>>  qterminal?
>>>>>
>>>>>   ..mark
>>>>   For qt graphics
>>>>   gnuplot.exe uses driver process named gnuplot_qt.exe.
>>>>
>>>>   gnuplot.exe tries connect with gnuplot_qt.exe
>>>>   by
>>>>
>>>>
>>>>   qt->socket.connectToServer(server);
>>>>
>>>>
>>>>   in gnuplot.exe code but fails to connect with gnuplot_qt.exe.
>>>
>>>  Yes, I understand that is happening at a low level.  What exactly are you
>>>  typing at your keyboard to make gnuplot produce the Qt graphics?  I would
>>>  like to reproduce your issue on my system; what do I need to do?
>>>
>>>  Please refer to the specific questions I was asking above.
>>>  Thank you,
>>>
>>>  ..mark
>>
>> Gnuplot distrubuted on Cyygwin does not link with Qt.
>> I am distrbuting develoment version of gnuplot with Qt (patched).
>> I have to prepare gnuplot binary without patch.
>>
>> I have my web site and I will prepare binaries without stripped debug
>> information
>> and upload on my web.
>>
>> I will do it tomorrow morning. (Before job.)
>>
>> Tatsuro
>
> I have prepared binaries:
> http://tmacchant3.starfree.jp/gnuplot/Eng/cyg_qt_test/
>
> test
> From gnplot prompt
>
> gnuplot> set terminal qt
> gnuplot> plot x
>
> Without Qt patch
>
> Could not connect to existing gnuplot_qt. Starting a new one.
>
> Warning: slow font initialization
>
>
>
> With Qt patchplot appears

Thank you very much, Tatsuro.  I have reproduced your issue and your fix.  I 
will dig into the Cygwin internals and let you know what I find out.

H/T to Achim for his comments and offer of help.

..mark


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