$OpenBSD: patch-Makefile,v 1.12 2011/08/24 19:29:24 naddy Exp $
--- Makefile.orig	Sun May 22 01:13:30 2011
+++ Makefile	Wed Aug 24 21:24:50 2011
@@ -24,7 +24,7 @@ else
 CC = gcc
 endif
 
-CFLAGS := -O -DNUTDIR=$(NUTDIR) -DFOODDIR=$(FOODDIR)
+CFLAGS += -DNUTDIR=$(NUTDIR) -DFOODDIR=$(FOODDIR)
 ifeq ($(CC),gcc)
 CFLAGS += -Wall -fno-inline -ansi
 endif