Compile OpenBoard - master, Project ERROR: Unknown module (s) in QT: its webkitwidgets
Find the corresponding qtwebkit - when it is compiled dev, print:
CMake Error at the Source/CMake/OptionsQt. CMake: 100 (the message) :
The Header private/qhexstring_p. H is not found. Do make sure that:

1. Private headers of Qt5Gui are installed
2. Qt5Gui_PRIVATE_INCLUDE_DIRS is correctly defined in Qt5GuiConfig. Cmake
The Call Stack (the most recent Call first) :
The Source/cmake/OptionsQt. Cmake: 652 (CHECK_QT5_PRIVATE_INCLUDE_DIRS)
The Source/cmake/WebKitCommon. Cmake: 53 (include)
CMakeLists. TXT: 137 (include)


How to solve? Similar to the search to a, is unlikely to change,
https://codereview.qt-project.org/c/qt/qtbase/+/227458/4/mkspecs/features/create_cmake.prf#b58