--- rpn/Makefile.orig	2005-09-28 19:35:35.000000000 -0400
+++ rpn/Makefile	2005-09-28 19:36:30.000000000 -0400
@@ -5,5 +5,6 @@
 rpn: rpn.o stack.o lexer.o
 	$(CC) $(CFLAGS) $^ -o $@
 	
-rpn.o stack.o: stack.h
-	
+rpn.o: stack.h
+stack.o: stack.h
+lexer.o:	
--- rpn/stack.h.orig	2005-09-28 19:35:42.000000000 -0400
+++ rpn/stack.h	2005-09-28 19:35:58.000000000 -0400
@@ -12,4 +12,4 @@
 
 extern double pop(void);
 extern void push(double);
-#endif STACK_H
+#endif /* STACK_H */