1 2CC ?= $(CROSS_COMPILE)gcc 3TARGET=signaltest 4FLAGS= -Wall -O2 5LIBS = -lpthread -lrt 6 7all: signaltest.c 8 $(CC) $(FLAGS) $^ -o $(TARGET) $(LIBS) 9 10clean: 11 rm -f $(TARGET) *.o .depend *.*~ 12 13