From a2f01f0ead5e16b34c8f63369119cec6aed12071 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Thu, 3 Apr 2008 15:28:21 +0000
Subject: [PATCH] Changed the OpenThreads extern to a specific OpenTreads tag