From e036dfc5bf691e2cb467f27010c3291f5b1c13a7 Mon Sep 17 00:00:00 2001
From: Thomas Geymayer <tomgey@gmail.com>
Date: Mon, 21 Jul 2014 13:26:09 +0200
Subject: [PATCH] Hopefully final fix for old gcc...

---
 simgear/nasal/cppbind/detail/nasal_traits.hxx | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/simgear/nasal/cppbind/detail/nasal_traits.hxx b/simgear/nasal/cppbind/detail/nasal_traits.hxx
index 73306936..26767d76 100644
--- a/simgear/nasal/cppbind/detail/nasal_traits.hxx
+++ b/simgear/nasal/cppbind/detail/nasal_traits.hxx
@@ -43,6 +43,9 @@ namespace osg
   template<class T> class ref_ptr;
   template<class T> class observer_ptr;
 
+  template<class T, class Y>
+  ref_ptr<T> static_pointer_cast(const ref_ptr<Y>&);
+
   class Vec2b;
   class Vec2d;
   class Vec2f;