[Paraview] opengl extension manager issue

[Kent Eschenberg]

There is a test for this symbol in VTK/Rendering/CMakeLists.txt and it seems that it is defined by PV if not found in GL/glx.h. A comment says that the GL include files are sometimes different.

Is it possible that different versions of glx.h were used between running cmake and running make?

Kent
Pittsburgh Supercomputing Center

John Biddiscombe wrote:
> Can anyone tell me why Cmake/ParaView fail to generate the correct 
> opengl stuff
> 
> /users/biddisco/code/pv/VTK/Rendering/vtkOpenGLExtensionManager.cxx: In 
> member function `virtual void (* 
> vtkOpenGLExtensionManager::GetProcAddress(const char*))()':
> /users/biddisco/code/pv/VTK/Rendering/vtkOpenGLExtensionManager.cxx:267: 
> error: `glXGetProcAddressARB' was not declared in this scope
> make[2]: *** 
> [VTK/Rendering/CMakeFiles/vtkRendering.dir/vtkOpenGLExtensionManager.o] 
> Error 1
> make[1]: *** [VTK/Rendering/CMakeFiles/vtkRendering.dir/all] Error 2
> make: *** [all] Error 2
> 
> I have had this problem for ever and I have finally decided I don't 
> understand why I get it sometimes, but not others.
> 
> if I wipe vtkOpenGLExtensionManagerConfigure and vtkParseOpenGLExt - the 
> files are regenerated - but usually wrongly - wopuld one expect the 
> results to be differnt if they are generated with/without a display?
> 
> Any ideas?
> 
> JB
>