


OBJS1 = 4.o 5.o 6.o
OBJS2 = 7.o 8.o 9.o


CSRC1 = $(OBJS2:.o=.c)
CSRC2 = $(OBJS3:.o=.c)

all:  $(OBJS1) $(OBJS2) 


CC = gcc
CFLAGS = -c
%.o: %.c
	$(CC) $(CFLAGS)  $<   



$(CSRC1): TimestampFile
	touch $(CSRC1)

$(CSRC2): TimestampCsrcFile
	touch $(CSRC2)

TimestampFile: TimestampCsrcFile
	touch TimestampFile


          
