From 4c5ca932c8d1613cb6906781b37710796cc5a4e7 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Mon, 13 Jun 2016 16:24:01 +0100
Subject: [PATCH] Added #include <string> in case other headers don't include
 it.

---
 include/osg/ref_ptr | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/osg/ref_ptr b/include/osg/ref_ptr
index 620d611ef..f9166ac15 100644
--- a/include/osg/ref_ptr
+++ b/include/osg/ref_ptr
@@ -15,9 +15,11 @@
 #define OSG_REF_PTR 1
 
 #include <osg/Config>
+
 #ifdef OSG_USE_REF_PTR_SAFE_DEREFERENCE
 #include <typeinfo>
 #include <stdexcept>
+#include <string>
 #endif
 
 namespace osg {