From e37e2cb408fdb48e9b6c2e2683648c8a623573a9 Mon Sep 17 00:00:00 2001
From: Douglas Gregor <doug.gregor@gmail.com>
Date: Wed, 9 Jul 2008 14:26:27 +0000
Subject: [PATCH] Fix hash_set and hash_map headers for GCC 4.3, from Ralf W.
 Grosse-Kunstleve. Fixes #1462

[SVN r47265]
---
 include/boost/config/stdlib/libstdcpp3.hpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/include/boost/config/stdlib/libstdcpp3.hpp b/include/boost/config/stdlib/libstdcpp3.hpp
index 7bbe604f..76c2e37d 100644
--- a/include/boost/config/stdlib/libstdcpp3.hpp
+++ b/include/boost/config/stdlib/libstdcpp3.hpp
@@ -68,6 +68,11 @@
 #  define BOOST_HAS_SLIST
 #  define BOOST_HAS_HASH
 #  define BOOST_SLIST_HEADER <ext/slist>
-#  define BOOST_HASH_SET_HEADER <ext/hash_set>
-#  define BOOST_HASH_MAP_HEADER <ext/hash_map>
+# if defined(__GLIBCXX__) && __GLIBCXX__ < 20071018 // GCC <= 4.3.0 
+#   define BOOST_HASH_SET_HEADER <ext/hash_set>
+#   define BOOST_HASH_MAP_HEADER <ext/hash_map>
+# else
+#   define BOOST_HASH_SET_HEADER <backward/hash_set>
+#   define BOOST_HASH_MAP_HEADER <backward/hash_map>
+# endif
 #endif