$NetBSD: patch-aa,v 1.4 2013/06/12 12:00:08 ryoon Exp $

--- GNUmakefile.orig	2013-02-20 06:30:52.000000000 +0000
+++ GNUmakefile
@@ -1,4 +1,4 @@
-CXXFLAGS = -DNDEBUG -g -O2
+CXXFLAGS = $(CPPFLAGS) -DNDEBUG -g -O2
 # -O3 fails to link on Cygwin GCC version 4.5.3
 # -fPIC is supported. Please report any breakage of -fPIC as a bug.
 # CXXFLAGS += -fPIC