From c163ec42787366a7253e48959aeb34de14aa814d Mon Sep 17 00:00:00 2001
From: Eric Niebler <eric@boostpro.com>
Date: Fri, 23 Aug 2013 18:35:46 +0000
Subject: [PATCH] merge [85438] from trunk to release, fix quickbook build on
 msvc

[SVN r85439]
---
 src/id_generation.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/id_generation.cpp b/src/id_generation.cpp
index 3b1f57d..6c3be07 100644
--- a/src/id_generation.cpp
+++ b/src/id_generation.cpp
@@ -6,6 +6,7 @@
     http://www.boost.org/LICENSE_1_0.txt)
 =============================================================================*/
 
+#include <cctype>
 #include "id_manager_impl.hpp"
 #include <boost/make_shared.hpp>
 #include <boost/unordered_map.hpp>