To port on GCC 4.01

diff --git a/src/PIPELINE/VISU_PipeLine.hxx b/src/PIPELINE/VISU_PipeLine.hxx
index e6777da7de7c31aac7853142f2e6795a42ac2795..c318be45b194927acc43f1ca7e8798087c3166b7 100644 (file)
--- a/src/PIPELINE/VISU_PipeLine.hxx
+++ b/src/PIPELINE/VISU_PipeLine.hxx
@@ -39,6 +39,8 @@ class vtkDataSet;
 class vtkPointSet;
 class vtkImplicitFunction;
 
+class VISU_MapperHolder;
+
 //----------------------------------------------------------------------------
 class VISU_PipeLine : public vtkObject
 {