Added component wise include of VTK, rather than monolithic.

CMakeLists.txt

 add_compile_options(-DHAVE_YAMLCPP) 
 
 # tinyxml2, this library is used for XML IO 
-option(TINYXML_SUPPORT  "MATIO library support for MATLAB .mat files" OFF)
-if ( TINYXML_SUPPORT )
+option( LEMMA_TINYXML_SUPPORT  "MATIO library support for MATLAB .mat files" OFF)
+if ( LEMMA_TINYXML_SUPPORT )
 	ExternalProject_Add(TINYXML2
 		GIT_REPOSITORY "https://github.com/leethomason/tinyxml2.git"
 		GIT_TAG  "master"
 	add_compile_options(-DTINYXMLSUPPORT) 
 endif()
 
-option(MATIO_SUPPORT  "MATIO library support for MATLAB .mat files" OFF)
-if ( MATIO_SUPPORT )
+option( LEMMA_MATIO_SUPPORT  "MATIO library support for MATLAB .mat files" OFF)
+if ( LEMMA_MATIO_SUPPORT )
 	add_compile_options(-DHAVE_MATIO) 
 	# matio, this library is used for MATLAB file IO
 	ExternalProject_ADD(MATIO
 endif()
 
 # We don't build VTK, it is too heavy.
-option (VTK_SUPPORT "VTK library for visualisation and grids" OFF)
-if (VTK_SUPPORT) 
-	find_package(VTK 6 REQUIRED NO_MODULE)
-	include(${VTK_USE_FILE})
+option (LEMMA_VTK_SUPPORT "VTK library for visualisation and grids" OFF)
+if ( LEMMA_VTK_SUPPORT ) 
+	#find_package(VTK 6 REQUIRED NO_MODULE)
+	find_package(VTK 6.0 COMPONENTS vtkCommonCore vtkRenderingCore vtkFiltersCore vtkFiltersSources 
+			vtkCommonDataModel vtkFiltersHyperTree vtkIOXML vtkIOImage vtkIOLegacy vtkInteractionStyle 
+			vtkRenderingAnnotation vtkFiltersHybrid vtkFiltersModeling vtkRenderingVolumeOpenGL NO_MODULE)
+	set(volumeRenderer volumerenderer.cxx)
+	include(${VTK_USE_FILE}) 
 	add_compile_options(-DLEMMAUSEVTK) 
 	# Compile Matplot_vtk if VTK is present
 	add_subdirectory(Matplot_vtk)	

LemmaCore/CMakeLists.txt

 
 # Linking
 add_dependencies(lemmacore YAML-CPP)
-if (TINYXML_SUPPORT)
+if (LEMMA_TINYXML_SUPPORT)
 	add_dependencies(lemmacore TINYXML2)
 endif()
-if (MATIO_SUPPORT)
+if (LEMMA_MATIO_SUPPORT)
 	add_dependencies(lemmacore MATIO)
 endif()
-if (VTK_SUPPORT) 
+if (LEMMA_VTK_SUPPORT) 
 	target_link_libraries(lemmacore ${VTK_LIBRARIES})
 	target_link_libraries(lemmacore "matplot")
 endif()
 # Install
 install ( TARGETS lemmacore DESTINATION ${CMAKE_INSTALL_PREFIX}/lib )
 
-option( LEMMABUILDEXAMPLES "Compile example Lemma applications" OFF )
-if (LEMMABUILDEXAMPLES)
+option( LEMMA_BUILD_EXAMPLES "Compile example Lemma applications" OFF )
+if (LEMMA_BUILD_EXAMPLES)
 	add_subdirectory(examples)
 endif()