diff -uNr qtiplot-0.9.8.5/3rdparty/qwtplot3d/include/qwt3d_enrichment_std.h qtiplot-0.9.8.5p/3rdparty/qwtplot3d/include/qwt3d_enrichment_std.h
--- qtiplot-0.9.8.5/3rdparty/qwtplot3d/include/qwt3d_enrichment_std.h	2010-01-22 00:45:43.000000000 +0200
+++ qtiplot-0.9.8.5p/3rdparty/qwtplot3d/include/qwt3d_enrichment_std.h	2013-01-17 17:44:24.745443677 +0200
@@ -2,6 +2,7 @@
 #define qwt3d_enrichment_std_h__2004_02_23_19_25_begin_guarded_code
 
 #include "qwt3d_enrichment.h"
+#include <GL/glu.h>
 
 namespace Qwt3D
 {
diff -uNr qtiplot-0.9.8.5/3rdparty/qwtplot3d/include/qwt3d_openglhelper.h qtiplot-0.9.8.5p/3rdparty/qwtplot3d/include/qwt3d_openglhelper.h
--- qtiplot-0.9.8.5/3rdparty/qwtplot3d/include/qwt3d_openglhelper.h	2010-01-22 00:45:43.000000000 +0200
+++ qtiplot-0.9.8.5p/3rdparty/qwtplot3d/include/qwt3d_openglhelper.h	2013-01-17 19:58:04.526936971 +0200
@@ -7,6 +7,7 @@
 #else
 #include <QtOpenGL/qgl.h>
 #endif
+#include <GL/glu.h>
 
 namespace Qwt3D
 {
diff -uNr qtiplot-0.9.8.5/qtiplot/qtiplot.pro qtiplot-0.9.8.5p/qtiplot/qtiplot.pro
--- qtiplot-0.9.8.5/qtiplot/qtiplot.pro	2011-02-14 13:21:47.000000000 +0200
+++ qtiplot-0.9.8.5p/qtiplot/qtiplot.pro	2013-01-17 20:53:20.795529904 +0200
@@ -20,6 +20,7 @@
 LIBS         += $$QWT_LIBS
 LIBS         += $$QWT3D_LIBS
 LIBS         += $$GSL_LIBS
+LIBS         += -lz -lGLU
 
 #############################################################################
 ###################### BASIC PROJECT PROPERTIES #############################