$OpenBSD: patch-src_Makefile_in,v 1.2 2005/10/26 20:47:09 bernd Exp $
--- src/Makefile.in.orig	Mon Jun 27 23:14:55 2005
+++ src/Makefile.in	Wed Oct 26 22:35:08 2005
@@ -69,7 +69,7 @@ VERSION = @VERSION@
 
 MAINTAINERCLEANFILES = Makefile.in
 
-CFLAGS = -Wall -Werror -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
+CFLAGS+= -Wall -Werror -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
 
 bin_PROGRAMS = stress
 stress_SOURCES = stress.c
