--- Makefile.orig	Wed Jul  3 00:49:39 1996
+++ Makefile	Mon Feb 24 14:20:26 1997
@@ -34,8 +34,8 @@
 # change the -L/usr/X11R6/lib to the directory where X11
 # libraries libX11.* and libXext.* are located on your system.
 CC      = gcc
-DEFINES = -DUNIX -DLSB_FIRST -DDEBUG -DMITSHM -DSOUND
-CFLAGS  = -O2 -I/usr/X11/include -L/usr/X11/lib ${DEFINES}
+DEFINES = -DUNIX -DLSB_FIRST -DMITSHM -DSOUND #-DBEBUG
+CFLAGS  = -O2 -I${X11BASE}/include -L${X11BASE}/lib ${DEFINES}
 OBJECTS = fMSX.o MSX.o Z80.o Debug.o Unix.o Sound.o
 
 # Make the standard distribution: fMSX and DASM.