Run the convert-help.bash script to convert documentation: ./convert-help.bash "/path/to/CMake-build/bin" Then remove it.
This solves a lots of warnings, e.g. in the FindModulesExecuteAll test. If the installed version on the system is rather old this may even lead to bugs, e.g. https://bugs.gentoo.org/show_bug.cgi?id=436540
Added new find modules for osgQt and osgPresentation submitted by Robert Osfield <robert.osfield@gmail.com>