--- libQGLViewer-2.5.1/QGLViewer/QGLViewer.pro	2015-11-09 00:29:14.130140666 +0000
+++ libQGLViewer-2.5.1/QGLViewer/QGLViewer.pro	2015-11-09 00:30:07.054139336 +0000
@@ -305,3 +305,5 @@
   unix: TARGET = $$join(TARGET,,,_debug)
   else: TARGET = $$join(TARGET,,,d)
 }
+
+LIBS += -lGLU