--- config.orig	Thu Jul  8 06:32:37 1999
+++ config	Sat Feb 26 23:51:52 2000
@@ -18,7 +18,7 @@
 # ------------------------------------------------------------------ C compiler
 
 # you need an ANSI C compiler. gcc is a popular one.
-CC= gcc
+CC?= gcc
 WARN= -ansi -Wall
 
 # on IRIX, cc is a good ANSI compiler.
@@ -64,5 +64,6 @@
 INCS= -I$(INC) $(EXTRA_INCS)
 DEFS= $(COMPAT) $(NUMBER) $(OLD_ANSI) $(EXTRALIB) $(EXTRA_DEFS)
 
-CFLAGS= -O2 $(WARN) $(INCS) $(DEFS)
+CFLAGS?= -O2
+CFLAGS+= $(WARN) $(INCS) $(DEFS)