--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,3 @@
-CC = gcc
-CFLAGS = -O2
 VERSION = 1.0.8
 
 TARGET = ttyrec ttyplay ttytime
@@ -9,14 +7,11 @@
 
 all: $(TARGET)
 
-ttyrec: ttyrec.o io.o
-	$(CC) $(CFLAGS) -o ttyrec ttyrec.o io.o
+ttyrec: io.o
 
-ttyplay: ttyplay.o io.o
-	$(CC) $(CFLAGS) -o ttyplay ttyplay.o io.o
+ttyplay: io.o
 
-ttytime: ttytime.o io.o
-	$(CC) $(CFLAGS) -o ttytime ttytime.o io.o
+ttytime: io.o
 
 clean:
 	rm -f *.o $(TARGET) ttyrecord *~