--- makefile	Fri Jul 31 04:41:20 1998
+++ /home/andy/tmp/wrk/makefile	Mon Aug 10 18:40:01 1998
@@ -9,14 +9,16 @@
 
 # Makefile user-definable variables------------------------------------------
 
-CC=gcc
+CC?=gcc
+PREFIX?=/usr/X11R6
+X11BASE?=/usr/X11R6
 MATHLIB=-lm
 
 INSTALLROOT=$(PREFIX)
 LANGUAGE=english
 
-XLIB=-L$(PREFIX)/lib -lX11 #-lcompat
-CFLAGS=-I$(PREFIX)/include -O2
+XLIB=-L$(X11BASE)/lib -lX11 #-lcompat
+CFLAGS+=-I$(X11BASE)/include
 
 
 # End of makefile user-definable variables-----------------------------------