$OpenBSD: patch-Makefile,v 1.1 2012/01/04 08:23:22 dcoppa Exp $
--- Makefile.orig	Wed Jan  4 09:13:07 2012
+++ Makefile	Wed Jan  4 09:13:14 2012
@@ -5,7 +5,7 @@
 PROG=	hotplug-diskmount
 SRCS=	hotplug-diskmount.c
 MAN=	hotplug-diskmount.8
-CFLAGS+= -W -Wall -g -O0
+CFLAGS?= -W -Wall -g -O0
 
 BINDIR=/usr/local/libexec