zephyr_library() zephyr_library_sources(buf.c) zephyr_library_sources(smp.c) zephyr_library_sources_ifdef(CONFIG_MCUMGR_SMP_BT smp_bt.c) zephyr_library_sources_ifdef(CONFIG_MCUMGR_SMP_SHELL smp_shell.c) zephyr_library_sources_ifdef(CONFIG_MCUMGR_SMP_UART smp_uart.c) zephyr_library_link_libraries(MCUMGR) if (CONFIG_MCUMGR_SMP_SHELL OR CONFIG_MCUMGR_SMP_UART) zephyr_library_sources(serial_util.c) endif ()