Homebrew/homebrew-science — pull request #133 by sxprophet (2013-04-09 09:12:51+00:00)
Title: several vtk enhancements

provided option to use home-brewed freetype for rendering,
patched several CMakeLists.txt to use with home-brewed freetype,
provided option to enable Boost::Graph support for vtkInfovis,
provided options to use homebrewed and/or OS X shipped libs for vtkIO.

Does VTK Tcl bindings require Tk support enabled? I'm not sure.