diff -up VTK/CMake/vtkModuleMacros.cmake.system VTK/CMake/vtkModuleMacros.cmake

--- VTK/CMake/vtkModuleMacros.cmake.system	2013-12-24 19:17:43.000000000 -0700

+++ VTK/CMake/vtkModuleMacros.cmake	2013-12-27 20:28:22.375573277 -0700

@@ -682,7 +682,7 @@ macro(vtk_module_third_party _pkg)

     message(FATAL_ERROR "Cannot specify both LIBRARIES and NO_LIBRARIES")

   endif()

-  option(VTK_USE_SYSTEM_${_upper} "Use system-installed ${_pkg}" OFF)

+  option(VTK_USE_SYSTEM_${_upper} "Use system-installed ${_pkg}" ${VTK_USE_SYSTEM_LIBRARIES})

   mark_as_advanced(VTK_USE_SYSTEM_${_upper})

   if(VTK_USE_SYSTEM_${_upper})

diff -up VTK/CMakeLists.txt.system VTK/CMakeLists.txt

--- VTK/CMakeLists.txt.system	2013-12-27 20:28:22.374573241 -0700

+++ VTK/CMakeLists.txt	2013-12-27 20:28:48.118669708 -0700

@@ -132,6 +132,11 @@ if (CMAKE_CROSSCOMPILING AND NOT COMPILE

 endif()

 #-----------------------------------------------------------------------------

+# Do we try to use system libraries by default?

+OPTION(VTK_USE_SYSTEM_LIBRARIES "Use the system's libraries by default." OFF)

+MARK_AS_ADVANCED(VTK_USE_SYSTEM_LIBRARIES)

+

+#-----------------------------------------------------------------------------

 # The third party macros are still used in one or two third party builds.

 include(vtkThirdParty)