first real run on the phytotron

serial/Makefile

@@ -1,5 +1,7 @@
 
 OPT = -Wall -DDEBUG_LEVEL=0
+OBJS = serial.o funcs.o
+# ---------------------------------------------------
 
 serial.o:	serial.c serial.h Makefile
 	gcc ${OPT} -c $<
@@ -7,6 +9,8 @@ serial.o:	serial.c serial.h Makefile
 funcs.o:	funcs.c serial.h Makefile
 	gcc ${OPT} -c $<
 
-t:	t.c serial.o funcs.o Makefile
-	gcc ${OPT}  $< serial.o funcs.o -o $@
+# ---------------------------------------------------
+
+t:	t.c  Makefile ${OBJS}
+	gcc ${OPT}  $< ${OBJS} -o $@