$NetBSD: patch-ab,v 1.1.1.1 2005/05/19 13:03:56 minskim Exp $

--- makefile.orig	1999-03-05 16:04:39.000000000 -0600
+++ makefile
@@ -2,9 +2,9 @@
 # Collin D. Bevins, October 1996
 
 # The following rules work for UnixWare 2.0.
-CC = cc
-CFLAGS = -g -DNDEBUG
-LIBS = -lm
+CC ?= cc
+CFLAGS ?= -g -DNDEBUG
+LIBS += -lm
 
 fireSim: fireSim.o fireLib.o fireLib.h
 	$(CC) $(CFLAGS) fireSim.c fireLib.c -o fireSim $(LIBS)