if(CONFIG_ETL) add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/.. etl) zephyr_link_interface(etl) zephyr_compile_definitions_ifdef(CONFIG_ETL_DEBUG ETL_DEBUG) zephyr_compile_definitions_ifdef(CONFIG_ETL_CHECK_PUSH_POP ETL_CHECK_PUSH_POP) zephyr_compile_definitions_ifdef(CONFIG_ETL_LOG_ERRORS ETL_LOG_ERRORS) endif()