--- Makefile.orig	Sat Aug 31 09:50:33 1996
+++ Makefile	Thu Oct  4 22:15:59 2001
@@ -7,22 +7,19 @@ CFLAGS = -O3 -fomit-frame-pointer -funro
 
 
 all:
-	cat words0
 	$(CC) $(CFLAGS) -o bzip bzip.c
-	rm -f bunzip
-	ln -s ./bzip ./bunzip
-	cat words1
-	./bzip -Q -1 < sample1.ref > sample1.rbz
-	./bzip -Q -2 < sample2.ref > sample2.rbz
-	./bunzip -Q < sample1.bz > sample1.tst
-	./bunzip -Q < sample2.bz > sample2.tst
-	cat words2
-	cmp sample1.bz sample1.rbz 
-	cmp sample2.bz sample2.rbz
-	cmp sample1.tst sample1.ref
-	cmp sample2.tst sample2.ref
-	cat words3
+	@ln -fs ./bzip ./bunzip
 
+regress:
+	@echo "*** testing bzip and bunzip ***"
+	./bzip -Q -1 < sample1.ref > sample1.rbz || exit 1
+	./bzip -Q -2 < sample2.ref > sample2.rbz || exit 1
+	./bunzip -Q < sample1.bz > sample1.tst || exit 1
+	./bunzip -Q < sample2.bz > sample2.tst || exit 1
+	cmp sample1.bz sample1.rbz || exit 1
+	cmp sample2.bz sample2.rbz || exit 1
+	cmp sample1.tst sample1.ref || exit 1
+	cmp sample2.tst sample2.ref || exit 1
 
 clean:
 	rm -f bzip bunzip sample*.tst sample*.rbz