[vtkusers] Error compiling Koenig's VtkQt solution with latest CVS

[Matt Schmiermund]

I got the latest version of vtk from cvs this morning
and I am now trying to compile Koenig's vtkqt solution
and I am getting an error I haven't seen with previous
versions.

vtkQtRenderWindow.cpp:
Fatal F1003 C:\vtk\include\vtkType.h 194: Error
directive: "No native data type
can represent a 64-bit integer."
*** 1 errors in Compile ***

In the file vtkType.h:

191   # define VTK_TYPE_UINT64 VTK_UNSIGNED___INT64
192   # define VTK_TYPE_INT64 VTK___INT64
193   #else
194   # error "No native data type can represent a
64-bit integer."
195   #endif

If anyone knows why this error occurs and/or how I can
fix it I would greatly appreciate the help.

-Matt