Error with Qt 6 and autotools

[Cor Blom]

Op 22-08-2023 om 21:02 schreef Scott Kostyshak:
> Are you sure that CMake ends up compiling with Qt 6? I wonder if it's
> possible CMake actually compiles with Qt 5 (because it detects a missing
> dependency).

It's an isolated build environment where qt5 is not present, so yes it 
is using qt6.

I also see this among the build param:

LYX_USE_QT:STRING                  = QT6    : Use Qt version as frontend 
(AUTO QT5 QT6)

Cor