configuring basicdrawing example standalone fails in Qt 6.5.5

Steps to reproduce

• install Qt 6.5.5 from the maintenance tool
• open Qt Creator
• select basicdrawing example
• choose to copy it to a local directory
• remove CMakeLists.txt
• run pro2cmake.py basicdrawing.pro
• build (and run CMake) in Qt Creator

Expected result

• example can be configured
• example compiles
• example runs

Actual result

CMake fails with

axel@axelsqt:~/QtDev/basicdrawing/build/Qt_6_5_5_6_5-Debug> cmake . --trace-expand --trace-redirect=cmake.trace
Put cmake in trace mode, but with variables expanded.
Put cmake in trace mode and redirect trace output to a file instead of stderr.
Trace will be written to cmake.trace
CMake Error at CMakeLists.txt:19 (qt_add_executable):
  Unknown CMake command "qt_add_executable".

Workaround

• qmake basicdrawing works
• selecting 6.6.1 from the installer makes CMake work