설명서에 나온대로 $make clean 하고 $make 했더니 아래처럼 에러가 pi@raspberrypi:~/ktiot/test $ make cleanrm -rf main.opi@raspberrypi:~/ktiot/test $ makegcc -W -O0 -g -I../include -c main.c -o main.ogcc -o tt main.o ../lib/libiotmakers.a -lpthreadmain.o: In function `mycb_strdata_handler':/home/pi/ktiot/test/main.c:47: undefined reference to `pinMode'/home/pi/ktiot/test/main.c:53: undefined reference to `digitalWrite..