add_subdirectory(Eigen) if(EIGEN_BUILD_DOC) add_subdirectory(doc EXCLUDE_FROM_ALL) endif() if(EIGEN_BUILD_TESTING) if(EIGEN_LEAVE_TEST_IN_ALL_TARGET) add_subdirectory(test) # can't do EXCLUDE_FROM_ALL here, breaks CTest else() add_subdirectory(test EXCLUDE_FROM_ALL) endif() endif()