http://sourceforge.net/tracker/?func=detail&aid=3211822&group_id=66612&atid=515106
http://xmlstar.git.sourceforge.net/git/gitweb.cgi?p=xmlstar/xmlstar;a=patch;h=5f2445dac0e2a255d89240ec919ecd753045cce5;hp=d0f9902aedc75cef168aa1a34593bc5b74e9669c


From 5f2445dac0e2a255d89240ec919ecd753045cce5 Mon Sep 17 00:00:00 2001
From: Noam Postavsky <npostavs@users.sourceforge.net>
Date: Mon, 14 Mar 2011 18:13:37 -0400
Subject: [PATCH 1/1] check that O_BINARY is declared before #include'ing io.h

---
 configure.ac   |    3 ++-
 src/xml_C14N.c |    6 +++---
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/configure.ac b/configure.ac
index b9eb53d..5b2d3bc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -109,7 +109,8 @@ AS_IF([test "x$STATIC_LIBS" != xno],
 
 AC_CHECK_FUNCS_ONCE([lstat stat])
 
-AC_CHECK_DECL([O_BINARY], [], [], [[
+AC_CHECK_DECL([O_BINARY], [AC_DEFINE([HAVE_DECL_O_BINARY],1,[have O_BINARY])],
+[AC_DEFINE([HAVE_DECL_O_BINARY],0,[don't have O_BINARY])], [[
 #include <io.h>
 #include <fcntl.h>
 ]])
diff --git a/src/xml_C14N.c b/src/xml_C14N.c
index 3ef1a7c..115e2ce 100644
--- a/src/xml_C14N.c
+++ b/src/xml_C14N.c
@@ -20,11 +20,11 @@
 #include <stdlib.h>
 #endif
 
-#if !HAVE_SETMODE
-# define setmode(fd, mode)
-#else
+#if HAVE_SETMODE && HAVE_DECL_O_BINARY
 # include <io.h>
 # include <fcntl.h>
+#else
+# define setmode(fd, mode)
 #endif
 
 #include <libxml/xmlmemory.h>
-- 
1.7.0.1