From 271ea9e901bdbb8110ab200d8584da37a7864042 Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@pdimov.com>
Date: Mon, 27 Feb 2006 21:57:38 +0000
Subject: [PATCH] Borland 5.81 fix (Alisdair Meredith)

[SVN r33161]
---
 include/boost/ref.hpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/boost/ref.hpp b/include/boost/ref.hpp
index 3745e7c..ab09ae7 100644
--- a/include/boost/ref.hpp
+++ b/include/boost/ref.hpp
@@ -10,6 +10,7 @@
 #include <boost/config.hpp>
 #include <boost/utility/addressof.hpp>
 #include <boost/mpl/bool.hpp>
+#include <boost/detail/workaround.hpp>
 
 //
 //  ref.hpp - ref/cref, useful helper functions
@@ -33,7 +34,7 @@ template<class T> class reference_wrapper
 public:
     typedef T type;
 
-#if defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
+#if defined( BOOST_MSVC ) && BOOST_WORKAROUND( BOOST_MSVC, < 1300 )
 
     explicit reference_wrapper(T& t): t_(&t) {}
 
@@ -54,7 +55,7 @@ private:
     T* t_;
 };
 
-# if defined(__BORLANDC__) && (__BORLANDC__ <= 0x570)
+# if defined( __BORLANDC__ ) && BOOST_WORKAROUND( __BORLANDC__, BOOST_TESTED_AT(0x581) )
 #  define BOOST_REF_CONST
 # else
 #  define BOOST_REF_CONST const