diff --git a/src/BulletMultiThreaded/SpuParallelSolver.cpp b/src/BulletMultiThreaded/SpuParallelSolver.cpp
index b4186b5c1..8a1d9c3e3 100644
--- a/src/BulletMultiThreaded/SpuParallelSolver.cpp
+++ b/src/BulletMultiThreaded/SpuParallelSolver.cpp
@@ -1,3 +1,4 @@
+#ifdef CONSTRAINT_SOLVER_IS_BEING_REFACTORED_DURING_DECEMBER_2008
 /*
 Bullet Continuous Collision Detection and Physics Library - Parallel solver
 Copyright (c) 2007 Starbreeze Studios
@@ -639,3 +640,4 @@ void SolverTaskScheduler::flushTasks()
 		m_numBusyTasks--;
 	}
 }
+#endif //#ifdef CONSTRAINT_SOLVER_IS_BEING_REFACTORED_DURING_DECEMBER_2008
\ No newline at end of file
diff --git a/src/BulletMultiThreaded/SpuParallelSolver.h b/src/BulletMultiThreaded/SpuParallelSolver.h
index 2d25c2da9..56601d88c 100644
--- a/src/BulletMultiThreaded/SpuParallelSolver.h
+++ b/src/BulletMultiThreaded/SpuParallelSolver.h
@@ -1,3 +1,4 @@
+#ifdef CONSTRAINT_SOLVER_IS_BEING_REFACTORED_DURING_DECEMBER_2008
 /*
 Bullet Continuous Collision Detection and Physics Library - Parallel solver
 Copyright (c) 2007 Starbreeze Studios
@@ -73,3 +74,4 @@ public:
 };
 
 #endif
+#endif //CONSTRAINT_SOLVER_IS_BEING_REFACTORED_DURING_DECEMBER_2008
\ No newline at end of file