chap3

bac2/os/chap3/Makefile

@@ -2,7 +2,9 @@
 CC = gcc
 CFLAGS = -g -Wall
 
-all: ex1 ex2 ex3 ex4 ex5 ex6 ex7 group
+SRC = ex1 ex2 ex3 ex4 ex5 ex6 ex7 group
+
+all: $(SRC)
 
 group: group.o mergeSort.o
 	$(CC) $(CFLAGS) -o $@ $+
@@ -15,9 +17,8 @@ group: group.o mergeSort.o
 
 clean:
 	rm -f *.o core.*
-
-mrproper: clean
-	rm -f ex1
+	rm -f plot.png
+	rm -f $(SRC) 
 
 run: group
 	./$<