--- Makefile.orig	Wed Mar  3 22:16:31 1993
+++ Makefile	Mon Aug 13 21:56:35 2001
@@ -5,7 +5,7 @@
 ###
 # if you can't or don't intend to use dbm files,
 # don't bother with DBM or makedb
-DBM = -ldbm
+# DBM = -ldbm
 # or if you roll your own ...
 # DBM = dbm.o
 ###
@@ -18,9 +18,9 @@
 ### end of configuration section 
 
 
-CC = cc
-CFLAGS = -O
-LDFLAGS = -s $(GETOPT) $(DBM) $(RESOLVER)
+CC?= cc
+CFLAGS+= -O
+LDFLAGS+= -s $(GETOPT) $(DBM) $(RESOLVER)
 YFLAGS = -d
 
 OBJ = addlink.o addnode.o domain.o local.o main.o mapit.o mapaux.o mem.o parse.o printit.o