[vtk-developers] clarification of VTK_USE_OGLR

[clinton at elemtech.com]

Can someone clarify what VTK_USE_OGLR means in vtkToolkits.h?

There's the complicated #if for defining it, but in vtkGraphicsFactory.cxx the 
usage implies that it simply means using OpenGL on X11.

If one builds on Mac OS X with OSMesa, without X11, without Carbon, and 
without Cocoa, VTK_USE_OGLR gets defined, and it attempts to compiles the X11 
based VTK code.

Any recommendations for how to fix it?

Clint