Index: VTK-8.0.0/Filters/StatisticsGnuR/CMakeLists.txt
===================================================================
--- VTK-8.0.0.orig/Filters/StatisticsGnuR/CMakeLists.txt
+++ VTK-8.0.0/Filters/StatisticsGnuR/CMakeLists.txt
@@ -27,6 +27,10 @@ include_directories(${R_INCLUDE_DIR})
 
 add_definitions(-DVTK_BUILDING_FILTERS_STATISTICSGNUR)
 
+# Check for the existance of uintptr_t type and set the HAVE_UINTPTR_T macro
+include(CheckTypeSize)
+CHECK_TYPE_SIZE(uintptr_t UINTPTR_T)
+
 # Configure the module specific settings into a module configured header.
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/vtkFiltersStatisticsGnuRConfigure.h.in
   ${CMAKE_CURRENT_BINARY_DIR}/vtkFiltersStatisticsGnuRConfigure.h)
Index: VTK-8.0.0/Filters/StatisticsGnuR/vtkFiltersStatisticsGnuRConfigure.h.in
===================================================================
--- VTK-8.0.0.orig/Filters/StatisticsGnuR/vtkFiltersStatisticsGnuRConfigure.h.in
+++ VTK-8.0.0/Filters/StatisticsGnuR/vtkFiltersStatisticsGnuRConfigure.h.in
@@ -17,5 +17,6 @@
 #define vtkFiltersStatisticsGnuRConfigure_h
 
 #define VTK_R_HOME "@R_HOME@"
+#cmakedefine HAVE_UINTPTR_T
 
 #endif