Steve,
Not sure it will help you, but here’s the snippet from my Xcode-based project that uses VTK built by CMake:
// VTK factory methods require "auto-initialization".
// <http://www.vtk.org/Wiki/VTK/VTK_6_Migration/Factories_now_require_defines>
#include "vtkAutoInit.h"
#include "vtkRenderingOpenGLConfigure.h"
VTK_MODULE_INIT(vtkInteractionStyle)
VTK_MODULE_INIT(vtkRenderingFreeType)
VTK_MODULE_INIT(vtkRenderingOpenGL2)