[Development] Quick report on loading Qt 5 and 6 in the same process

[Lisandro Damián Nicanor Pérez Meyer]

El martes, 16 de mayo de 2023 16:12:36 -03 Thiago Macieira escribió:
> On Monday, 15 May 2023 21:23:21 PDT Thiago Macieira wrote:
> > We still don't know why this happened because all our attempts
> > to find out why cause the problem to disappear.
> 
> BTW, we found that the user's application was linking against 
> libKF5NetworkManagerQt, not KF6, because they were using an intermediary 
> version of that library, between the addition of the support for Qt 6, but 
> before the library renaming. So when the process was launched in production, 
> it found the system libKF5NetworkManagerQt and that loaded Qt 5.
> 
> Clearly there were more changes than just the QProcess launch and the problem 
> disappearing with any environment variable being set. That "launch in 
> production" was an important part of the symptom that the reported neglected 
> to mention for three days...

Thanks for this Thiago, this might probe helpful in the future.
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