From f2f085bc3f8aabfca270457642b706fd75ab9845 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Mon, 14 Jun 2010 15:22:35 +0000
Subject: [PATCH] From Stephan Huber, "the IncrementalCompileOperation-class
 throws away compiled compile-sets, when no compileCompletedCallback is set.
 Attached you'll find a simple fix for this bug."

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

diff --git a/src/osgUtil/IncrementalCompileOperation.cpp b/src/osgUtil/IncrementalCompileOperation.cpp
index 05854dd50..576a9b631 100644
--- a/src/osgUtil/IncrementalCompileOperation.cpp
+++ b/src/osgUtil/IncrementalCompileOperation.cpp
@@ -410,9 +410,9 @@ void IncrementalCompileOperation::operator () (osg::GraphicsContext* context)
                 }
             }
         
-            if (csCompleted && cs->_compileCompletedCallback.valid())
+            if (csCompleted)
             {
-                if (cs->_compileCompletedCallback->compileCompleted(cs))
+                if (cs->_compileCompletedCallback.valid() && cs->_compileCompletedCallback->compileCompleted(cs))
                 {
                     // callback will handle merging of subgraph so no need to place CompileSet in merge.
                 }