From d98f72c4e18ecbc52f95bb458f48799737357a05 Mon Sep 17 00:00:00 2001
From: John Maddock <john@johnmaddock.co.uk>
Date: Fri, 10 Oct 2008 16:10:00 +0000
Subject: [PATCH] Change includes of <cmath> to
 <boost/config/no_tr1/config.hpp>.

Previously if Boost.TR1 was in the include path then including <cmath> pulls in all the new TR1 math functions, which in turn also requires linking to an external library.  With auto-linking support this requires that library to have been built and be present in the library search path, even if the actual library under use is header only.

Fixes #2392.


[SVN r49254]
---
 include/boost/unordered/detail/hash_table.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/boost/unordered/detail/hash_table.hpp b/include/boost/unordered/detail/hash_table.hpp
index 234a9071..88e61d13 100644
--- a/include/boost/unordered/detail/hash_table.hpp
+++ b/include/boost/unordered/detail/hash_table.hpp
@@ -14,7 +14,7 @@
 #include <boost/config.hpp>
 
 #include <cstddef>
-#include <cmath>
+#include <boost/config/no_tr1/cmath.hpp>
 #include <algorithm>
 #include <utility>
 #include <stdexcept>