--- makefile.orig	Tue Apr  6 11:54:42 1999
+++ makefile	Fri Apr 30 23:29:43 1999
@@ -22,15 +22,15 @@
 # THIS SOFTWARE.
 # ****************************************************************/
 
-CFLAGS = -g
-CFLAGS = -O2
-CFLAGS =
+#CFLAGS = -g
+CFLAGS ?= -O2
+#CFLAGS =
 
-CC = gcc -Wall -g
-CC = purify cc
-CC = cc
+CC ?= gcc -Wall -g
+#CC = purify cc
+#CC = cc
 
-YACC = bison -y
+#YACC = bison -y
 YACC = yacc
 YFLAGS = -d