[vtkusers] mesa3.4+RH6.1 error

[stperti at infinito.it]

      Dear vtkUsers

      Compiling vtk312Unix.tar.gz under RH6.1 with Mesa3.4
      after building the shared objects:
      ./common/libVTKCommon.so
      ./common/libVTKCommonTcl.so
      ./graphics/examplesTcl/RenderMan/ambientlight.so
      ./graphics/examplesTcl/RenderMan/background.so
      ./graphics/examplesTcl/RenderMan/distantlight.so
      ./graphics/examplesTcl/RenderMan/plastic.so
      ./graphics/examplesTcl/RenderMan/spotlight.so
      ./graphics/examplesTcl/RenderMan/txtplastic.so

      i get these errors:
      vtkMesaRenderWindow.cxx: In method 
      `vtkMesaRenderWindow::vtkMesaRenderWindow()':
      vtkMesaRenderWindow.cxx:159: `class vtkMesaRenderWindow' has no member named 
      `OffScreenContextId'
      vtkMesaRenderWindow.cxx: In method 
      `vtkMesaRenderWindow::~vtkMesaRenderWindow()':
      vtkMesaRenderWindow.cxx:184: `class vtkMesaRenderWindow' has no member named 
      `OffScreenContextId'
      vtkMesaRenderWindow.cxx:229: `class vtkMesaRenderWindow' has no member named 
      `OffScreenContextId'
      vtkMesaRenderWindow.cxx: In method `void vtkMesaRenderWindow::Start()':
      vtkMesaRenderWindow.cxx:253: `class vtkMesaRenderWindow' has no member named 
      `OffScreenContextId'
      vtkMesaRenderWindow.cxx: In method `void vtkMesaRenderWindow::Initialize()':
      vtkMesaRenderWindow.cxx:518: `class vtkMesaRenderWindow' has no member named 
      `OffScreenContextId'
      vtkMesaRenderWindow.cxx: In method `void vtkMesaRenderWindow::WindowRemap()':
      vtkMesaRenderWindow.cxx:635: `class vtkMesaRenderWindow' has no member named 
      `OffScreenContextId'
      vtkMesaRenderWindow.cxx: In method `void vtkMesaRenderWindow::SetSize(int, 
      int)':
      vtkMesaRenderWindow.cxx:676: `class vtkMesaRenderWindow' has no member named 
      `OffScreenContextId'
      vtkMesaRenderWindow.cxx: In method `void vtkMesaRenderWindow::PrintSelf(class 
      ostream &, class vtkIndent)':
      vtkMesaRenderWindow.cxx:758: `class vtkMesaRenderWindow' has no member named 
      `OffScreenContextId'
      vtkMesaRenderWindow.cxx: In method `void vtkMesaRenderWindow::MakeCurrent()':
      vtkMesaRenderWindow.cxx:1181: `class vtkMesaRenderWindow' has no member named 
      `OffScreenContextId'
      vtkMesaRenderWindow.cxx: In method `void * 
      vtkMesaRenderWindow::GetGenericContext()':
      vtkMesaRenderWindow.cxx:1252: `class vtkMesaRenderWindow' has no member named 
      `OffScreenContextId'
      gmake[1]: *** [vtkMesaRenderWindow.o] Error 1
      gmake[1]: Leaving directory `/scratch/spertico/vtk31/graphics'
      gmake: *** [build_graphics] Error 2

      Any suggestion ?
      Thanks,Stefano