Let vtk's cmake find the TclTk resource from the TclTk source tree
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
VTK includes TclTk resources in its own source tree. If VTK is build against a version of TclTk not included in VTK then cmake wont be able to run.
See the link below for a patch and a report of the problem.