# 获取当前目录下的所有目录
file(GLOB directories RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/*)

foreach(dir ${directories})
    if (DEFINED ENABLE_PROJECT)
        list(FIND ENABLE_PROJECT ${dir} PROJECT)
        if(NOT PROJECT EQUAL -1)
            if(IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/${dir})
                if (EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/${dir}/CMakeLists.txt")
                    add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/${dir})
                else ()
                    message("Can't find dir: " "${CMAKE_SOURCE_DIR}/${dir}/CMakeLists.txt")
                endif ()
            endif ()
        endif()
    else()
        if(IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/${dir})
            if (EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/${dir}/CMakeLists.txt")
                add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/${dir})
            else ()
                message("Can't find dir: " "${CMAKE_SOURCE_DIR}/${dir}/CMakeLists.txt")
            endif ()
        endif ()
    endif ()
endforeach()