idf_component_register( SRC_DIRS . INCLUDE_DIRS . PRIV_REQUIRES bootloader_support json ) target_link_libraries(${COMPONENT_LIB} INTERFACE "-Wl,--undefined=esp_app_desc") idf_build_get_property(project_ver PROJECT_VER) message("******************* ${project_ver}") string(SUBSTRING "${project_ver}" 0 31 PROJECT_VER_CUT) set_source_files_properties(recovery.c PROPERTIES COMPILE_DEFINITIONS "PROJECT_VER=\"${PROJECT_VER_CUT}\"")