$NetBSD: patch-ah,v 1.1 2010/08/28 20:08:40 adam Exp $

--- m4/boost.m4.orig	2010-05-27 07:42:52.000000000 +0000
+++ m4/boost.m4
@@ -463,7 +463,7 @@ AC_DEFUN([BOOST_GRAPH],
 AC_DEFUN([BOOST_IOSTREAMS],
 [BOOST_FIND_LIB([iostreams], [$1],
                 [boost/iostreams/device/file_descriptor.hpp],
-                [boost::iostreams::file_descriptor fd(0); fd.close();])
+                [boost::iostreams::file_descriptor fd("/dev/null"); fd.close();])
 ])# BOOST_IOSTREAMS