Well Kdevelop and Kdevplatform 4.90.92 build on cygwin.

[Michael George Hart]

I figured out the unknowable reason; the splash screen was blocking the
view of the dialog box with the message about QT_PLUGIN_PATH

On May 18, 2016 3:33 PM, "Michael George Hart" <
michael.george.hart at gmail.com> wrote:
>
> For some unknowable I am now getting a dialog with the following message:
>       "Now I get the error dialog box:
> Could not find any plugins during startup.
> Please make sure QT_PLUGIN_PATH is set correctly.
> Refer to this article for more information."
>
> To tell the truth, after reading the article and  doing some research via
Google.  setting QT_PLUGIN_PATH does not seem that obvious in the Cygwin
environment.
>
> The source of the shared memory problem can be found in the main.cpp file
> kdevelop-5/4.90.92/kdevelop-4.90.92/app/main.cph
>
> See code above is the source of my grief under Cygwin ---Years ago coding
similar to a known kdevelop bug (https://bugs.kde.org/show_bug.cgi?id=249107
)
>
> Intrestingly when I commented out line the lines
> "if
(!QProcessEnvironment::systemEnvironment().contains("KDEV_DISABLE_SPLASH"))
{
>         splash = new KDevSplashScreen;
>         splash->show();
>     }"
>
> I started getting the Dialog box; now it always appears even when below
lines of code are uncomment
>
>     KDevSplashScreen* splash = nullptr;
>     if
(!QProcessEnvironment::systemEnvironment().contains("KDEV_DISABLE_SPLASH"))
{
>         splash = new KDevSplashScreen;
>         splash->show();
>     }
>
>     if(!Core::initialize(splash, Core::Default, session))
>         return 5;
>
>
> I read KCrash::initialize does no do anything when in debug mode. Where
can I get the source code to this so I may try the latest build under
cygwin?
>
> I have tracked down that QXcbShmImage: shmget() failed (88) for size
179960 (409x110) may have something to do with how xserver is started on MS
WINDOWS
>
> Anything you guys want me to try
>
> On May 18, 2016 4:56 AM, "René J.V." <rjvbertin at gmail.com> wrote:
>>
>> On Tuesday May 17 2016 16:13:13 Michael George Hart wrote:
>>
>> >Unfortunately proceeding to run it stopped at the 10% splash screen,
>> >showing on the command line
>> >$ kdevelop
>> >Fontconfig error: "/etc/fonts/conf.d/66-google-noto-nastaliq-urdu.conf",
>> >line 35: mismatched tag
>> >QXcbShmImage: shmget() failed (88) for size 179960 (409x110)
>>
>> I'm not sure that's related. What do other Qt5 applications show (if
they run), like Qt's Assistant for instance?
>>
>> If they too get stuck on this or a comparable error, the 1st thing to
try would be to move aside all .conf files from etc/fonts/conf.d .
>>
>> FWIW, I'm also seeing QXcbShmImage smget errors when I use the XCB qpa
plugin on OS X, but they're apparently benign.
>>
>> And that brings me to the 64k$ question: is it expected that Qt5/KF5
applications use X11 under Cygwin, rather than some native display engine
(QPA)?
>>
>> R.
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