set(ppp_connect_srcs ppp_connect.c) if(CONFIG_EXAMPLE_PPP_CONNECT_ESP_MODEM) list(APPEND ppp_connect_srcs ppp_connect_esp_modem.c) else() list(APPEND ppp_connect_srcs ppp_connect_simple.c) endif() idf_component_register(SRCS multi_netif_main.c check_connection.c wifi_connect.c ethernet_connect.c ${ppp_connect_srcs} INCLUDE_DIRS ".")