--- external/structuresynth/ssynth/SyntopiaCore/GLEngine/Object3D.h.orig	2012-06-20 18:04:43.000000000 +0200
+++ external/structuresynth/ssynth/SyntopiaCore/GLEngine/Object3D.h	2012-06-20 18:05:23.000000000 +0200
@@ -3,6 +3,7 @@
 #include "SyntopiaCore/Math/Vector3.h"
 #include <QGLWidget>
 #include <QtOpenGL>
+#include <GL/glu.h>
 
 namespace SyntopiaCore {
 	namespace GLEngine {