file(GLOB EXAMPLE_LIST RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} *)
foreach (EXAMPLE ${EXAMPLE_LIST})
    if (IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/${EXAMPLE})
        if (EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${EXAMPLE}/CMakeLists.txt)
            add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/${EXAMPLE})
        endif ()
    endif ()
endforeach ()