From 8863e036851576266a76224d4d7db83e02bc6d8e Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Mon, 16 May 2016 18:52:39 +0100
Subject: [PATCH] Replaced static ref_ptr<> with observer_ptr<> to avoid local
 static references hanging around.

---
 src/osgViewer/GraphicsWindowWin32.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/osgViewer/GraphicsWindowWin32.cpp b/src/osgViewer/GraphicsWindowWin32.cpp
index 9d50b7273..862b8b6e4 100644
--- a/src/osgViewer/GraphicsWindowWin32.cpp
+++ b/src/osgViewer/GraphicsWindowWin32.cpp
@@ -323,9 +323,9 @@ class Win32WindowingSystem : public osg::GraphicsContext::WindowingSystemInterfa
     }
 
     // Access the Win32 windowing system through this singleton class.
-    static osg::ref_ptr<Win32WindowingSystem>& getInterface()
+    static osg::observer_ptr<Win32WindowingSystem>& getInterface()
     {
-        static osg::ref_ptr<Win32WindowingSystem> s_win32Interface;
+        static osg::observer_ptr<Win32WindowingSystem> s_win32Interface;
         return s_win32Interface;
     }