zephyr_library() zephyr_library_sources( bt.c ) zephyr_library_sources_ifdef( CONFIG_BT_CONN gatt.c ) zephyr_library_sources_ifdef( CONFIG_BT_BREDR bredr.c ) zephyr_library_sources_ifdef( CONFIG_BT_RFCOMM rfcomm.c ) zephyr_library_sources_ifdef( CONFIG_BT_CTLR ll.c ticker.c ) zephyr_library_sources_ifdef( CONFIG_SOC_FLASH_NRF flash.c )