0023022: This is desirable to access OpenGl extensions and core API (1.2+) in one...

[occt.git] / src / OpenGl / OpenGl_GraphicDriver_Layer.cxx

diff --git a/src/OpenGl/OpenGl_GraphicDriver_Layer.cxx b/src/OpenGl/OpenGl_GraphicDriver_Layer.cxx
index efa084e..291bbfa 100755 (executable)
--- a/src/OpenGl/OpenGl_GraphicDriver_Layer.cxx
+++ b/src/OpenGl/OpenGl_GraphicDriver_Layer.cxx
@@ -13,6 +13,8 @@
 #include <OpenGl_AspectText.hxx>
 #include <OpenGl_TextParam.hxx>
 
+#include <GL/glu.h>
+
 /*----------------------------------------------------------------------*/
 
 struct OpenGl_LAYER_PROP