From c59e1bd8d9baf1d4ad03d4715b02d4f90a4cf235 Mon Sep 17 00:00:00 2001
From: Richard Roberts <richard.jw.roberts@gmail.com>
Date: Tue, 14 Feb 2012 23:42:39 +0000
Subject: [PATCH] Added missing header

---
 gtsam/inference/ClusterTree.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gtsam/inference/ClusterTree.h b/gtsam/inference/ClusterTree.h
index 7544587c1..c5301f030 100644
--- a/gtsam/inference/ClusterTree.h
+++ b/gtsam/inference/ClusterTree.h
@@ -21,6 +21,7 @@
 
 #include <list>
 #include <vector>
+#include <string>
 
 #include <boost/shared_ptr.hpp>
 #include <boost/weak_ptr.hpp>