Excluding examples if third party VTK libraries not built

CMakeLists.txt

@@ -49,7 +49,7 @@ message(STATUS "VTKWikiExamples: VTK VERSION: ${VTK_VERSION}(${VTK_RENDERING_BAC
 set(CMAKE_CXX_STANDARD 17 CACHE STRING "C++ standard to be used")
 set(CMAKE_CXX_STANDARD_REQUIRED ON CACHE STRING "C++ standard to be used")
 
-message(STATUS "C++ standard: ${CMAKE_CXX_STANDARD}")
+message(STATUS "C++ standard: C++${CMAKE_CXX_STANDARD}")
 
 #-----------------------------------------------------------------------------
 set(CMAKE_MODULE_PATH

src/Cxx/GeometricObjects/CMakeLists.txt

@@ -23,9 +23,9 @@ if(NOT VTK_BINARY_DIR)
     RenderingFreeType
     RenderingLabel
     RenderingOpenGL2
+    OPTIONAL_COMPONENTS
     cli11
     fmt
-    OPTIONAL_COMPONENTS
     TestingRendering
     QUIET
     )
@@ -40,6 +40,8 @@ file(GLOB ALL_FILES *.cxx)
 # set(VERSION_MIN "7.0")
 # Requires_Version(ParametricKuenDemo ${VERSION_MIN} ALL_FILES)
 # Requires_Version(ParametricObjectsDemo2 ${VERSION_MIN} ALL_FILES)
+
+include(${WikiExamples_SOURCE_DIR}/CMake/RequiresModule.cmake)
 Requires_Module(OpenVRCone RenderingOpenVR)
 Requires_Module(OpenVRCube RenderingOpenVR)
 Requires_Module(OpenVRCylinder RenderingOpenVR)
@@ -48,6 +50,8 @@ Requires_Module(OpenVROrientedArrow RenderingOpenVR)
 Requires_Module(OpenVROrientedCylinder RenderingOpenVR)
 Requires_Module(OpenVRSphere RenderingOpenVR)
 Requires_Module(OpenVRTessellatedBoxSource RenderingOpenVR)
+Requires_Module(ParametricObjectsDemo cli11)
+Requires_Module(ParametricObjectsDemo fmt)
 
 foreach(SOURCE_FILE ${ALL_FILES})
   string(REPLACE ".cxx" "" TMP ${SOURCE_FILE})

src/Cxx/Rendering/CMakeLists.txt

@@ -32,9 +32,9 @@ if(NOT VTK_BINARY_DIR)
     RenderingFreeType
     RenderingGL2PSOpenGL2
     RenderingOpenGL2
+    OPTIONAL_COMPONENTS
     cli11
     jsoncpp
-    OPTIONAL_COMPONENTS
     TestingRendering
     QUIET
     )
@@ -42,7 +42,6 @@ endif()
 
 set(KIT_LIBS ${VTK_LIBRARIES})
 
-
 #
 # Build all .cxx files in the directory
 file(GLOB ALL_FILES *.cxx)
@@ -53,6 +52,14 @@ Requires_Cxx_Version(PBR_Skybox ${CXX_VERSION_MIN} ALL_FILES)
 Requires_Cxx_Version(PBR_Skybox_Texturing ${CXX_VERSION_MIN} ALL_FILES)
 Requires_Cxx_Version(PBR_Skybox_Anisotropy ${CXX_VERSION_MIN} ALL_FILES)
 
+include(${WikiExamples_SOURCE_DIR}/CMake/RequiresModule.cmake)
+Requires_Module(PBR_Skybox cli11)
+Requires_Module(PBR_Skybox jsoncpp)
+Requires_Module(PBR_Skybox_Texturing cli11)
+Requires_Module(PBR_Skybox_Texturing jsoncpp)
+Requires_Module(PBR_Skybox_Anisotropy cli11)
+Requires_Module(PBR_Skybox_Anisotropy jsoncpp)
+
 foreach(SOURCE_FILE ${ALL_FILES})
   string(REPLACE ".cxx" "" TMP ${SOURCE_FILE})
   string(REPLACE ${CMAKE_CURRENT_SOURCE_DIR}/ "" EXAMPLE ${TMP})