Anyone can contribute to the documentation, the code, etc. You have to follow the procedures and rules but it's not some walled garden.

Hi, I described the steps I followed in a post over here, https://mechatronicsblog.com/cross-compile-and-deploy-qt-5-12-for-raspberry-pi/

Some people found some issues and posted comments there, the “qendian” issue seems to be related to this bug, there is also a patch there.

https://bugreports.qt.io/browse/QTBUG-71945

A quick and final update:

https://bugreports.qt.io/browse/QTBUG-72641
The topic was reopened - in no small part due to @Kalileo I believe ;-) - and the error seems to be found and fixed.

The fixed version seems to be the upcoming 5.12.1 and onwards.

Thanks everyone for the interest and help in the issue.

@raven-worx
Thanks a lot. Now, I got a perspective on how I can proceed further. I will try the solution with the QWebSocket and see how that goes.
Cheers!

@Bastien

I build with MinGW on Qt Creator. And when I use DLL, I've the error.

I didn't ask you that. I know that. That's why I asked you:

And when you build it in Visual Studio you are using the MinGW compiler, not the MSVC one, just like you show you are using from Qt Creator, right?

So I asked you what compiler you are using from Visual Studio, not Qt Creator.

Having to make a guess and assuming you use MinGW from Qt Creator but MSVC from VS, I imagine that is precisely the answer to your:

This code works fine in Visual Studio but not in QtCreator... Why ?