Merged
requested to merge jcfr/engine:fix-configuration-with-cmake-3.23rc1-updating-SolveDependencies into 4.x
This commit fixes configuration of Eigen3 external project issue using CMake 3.23.0-rc1. See discussion at cmake/cmake#23238 (closed)
It removes obsolete setting of CMAKE_GENERATOR_* variables in add_external_project_ex, indeed these variables are now automatically passed to projects from within the updated SolveDependencies CMake module.
Changes adapted from Kitware/iMSTK@359400116