--- Makefile.orig	Fri Sep  4 00:58:45 1992
+++ Makefile	Mon Jul 27 12:10:06 1998
@@ -2,8 +2,8 @@
 # Please send questions or bugs to mdw1@crux2.cit.cornell.edu
 
 CC = cc
-CLIBS = -lm -lX11
-CFLAGS = -O 
+CLIBS = -lm -L/usr/X11R6/lib -lX11
+CFLAGS = -I/usr/X11R6/include -O2 -fexpensive-optimizations -fomit-frame-pointer
 
 
 all: 4va ctorus cutctorus 4vdmake