Description: _install_doxygen_scripts_in_nodoc_build
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -540,9 +540,7 @@
 
 # The doxygen documentation needs to be aware of all modules.
 option(BUILD_DOCUMENTATION "Build the VTK documentation" OFF)
-if(BUILD_DOCUMENTATION)
-  add_subdirectory(Utilities/Doxygen)
-endif()
+add_subdirectory(Utilities/Doxygen)
 
 # If python wrapping and testing is enabled then add driver scripts to run
 # tests.  Note: Many pythong tests used to be automatically converted from TCL
--- a/Utilities/Doxygen/CMakeLists.txt
+++ b/Utilities/Doxygen/CMakeLists.txt
@@ -1,69 +1,72 @@
 #
 # Build the documentation
 #
-find_package(Doxygen REQUIRED)
-find_package(Perl REQUIRED)
-find_package(HTMLHelp)
-
-option(DOXYGEN_SHORT_NAMES "Build Doxygen of VTK using short file names" OFF)
-option(DOXYGEN_KEEP_TEMP "Do not delete the temporary Doxygen headers" OFF)
-option(DOXYGEN_GENERATE_HTMLHELP "Generate HTML help (CHM) files" ON)
-mark_as_advanced(DOXYGEN_SHORT_NAMES DOXYGEN_KEEP_TEMP DOXYGEN_GENERATE_HTMLHELP)
-if(DOXYGEN_SHORT_NAMES)
-  set(DOXYGEN_SHORT_NAMES YES)
-else()
-  set(DOXYGEN_SHORT_NAMES NO)
-endif()
-if(DOXYGEN_GENERATE_HTMLHELP)
-  set(DOXYGEN_GENERATE_HTMLHELP YES)
-else()
-  set(DOXYGEN_GENERATE_HTMLHELP NO)
-endif()
-
-#
-# Configure the script and the doxyfile, then add target
-#
-set(HAVE_DOT_YESNO NO)
-if(DOT)
-  set(HAVE_DOT_YESNO YES)
-  if(NOT DOT_PATH)
-    get_filename_component(DOT_PATH ${DOT} PATH)
+if (BUILD_DOCUMENTATION) 
+  find_package(Doxygen REQUIRED)
+  find_package(Perl REQUIRED)
+  find_package(HTMLHelp)
+
+  option(DOXYGEN_SHORT_NAMES "Build Doxygen of VTK using short file names" OFF)
+  option(DOXYGEN_KEEP_TEMP "Do not delete the temporary Doxygen headers" OFF)
+  option(DOXYGEN_GENERATE_HTMLHELP "Generate HTML help (CHM) files" ON)
+  mark_as_advanced(DOXYGEN_SHORT_NAMES DOXYGEN_KEEP_TEMP DOXYGEN_GENERATE_HTMLHELP)
+  if(DOXYGEN_SHORT_NAMES)
+    set(DOXYGEN_SHORT_NAMES YES)
+  else()
+    set(DOXYGEN_SHORT_NAMES NO)
   endif()
-endif()
-
-# Build up a list of all module source directories. Note that this should be
-# all source directories and so does not use the normal variables.
-unset(VTK_MODULE_DIRS_DOXYGEN)
-file(GLOB src RELATIVE "${VTK_SOURCE_DIR}" "${VTK_SOURCE_DIR}/*/*/module.cmake")
-foreach(module ${src})
-  get_filename_component(module_BASE ${module} PATH)
-  if("${module_BASE}" MATCHES "^Utilities" OR ${module_BASE} MATCHES "^Third")
-    # Skip the utilities and third parties directories.
+  if(DOXYGEN_GENERATE_HTMLHELP)
+    set(DOXYGEN_GENERATE_HTMLHELP YES)
   else()
-    # Use both the source and binary directories, this ensures that
-    # generated files will be included, but they may then be architecture,
-    # build configuration and/or compiler specific. All source directories
-    # are included whether the module is enabled or not.
-    set(VTK_MODULE_DIRS_DOXYGEN
-      "${VTK_MODULE_DIRS_DOXYGEN}
+    set(DOXYGEN_GENERATE_HTMLHELP NO)
+  endif()
+  
+  #
+  # Configure the script and the doxyfile, then add target
+  #
+  set(HAVE_DOT_YESNO NO)
+  if(DOT)
+    set(HAVE_DOT_YESNO YES)
+    if(NOT DOT_PATH)
+      get_filename_component(DOT_PATH ${DOT} PATH)
+    endif()
+  endif()
+  
+  # Build up a list of all module source directories. Note that this should be
+  # all source directories and so does not use the normal variables.
+  unset(VTK_MODULE_DIRS_DOXYGEN)
+  file(GLOB src RELATIVE "${VTK_SOURCE_DIR}" "${VTK_SOURCE_DIR}/*/*/module.cmake")
+  foreach(module ${src})
+    get_filename_component(module_BASE ${module} PATH)
+    if("${module_BASE}" MATCHES "^Utilities" OR ${module_BASE} MATCHES "^Third")
+      # Skip the utilities and third parties directories.
+    else()
+      # Use both the source and binary directories, this ensures that
+      # generated files will be included, but they may then be architecture,
+      # build configuration and/or compiler specific. All source directories
+      # are included whether the module is enabled or not.
+      set(VTK_MODULE_DIRS_DOXYGEN
+	"${VTK_MODULE_DIRS_DOXYGEN}
   \"${VTK_SOURCE_DIR}/${module_BASE}\"
   \"${VTK_BINARY_DIR}/${module_BASE}\"")
-  endif()
-endforeach()
+    endif()
+  endforeach()
+  
+  configure_file(
+    ${VTK_SOURCE_DIR}/Utilities/Doxygen/doxyfile.in
+    ${VTK_BINARY_DIR}/Utilities/Doxygen/doxyfile)
+  
+  configure_file(
+    ${VTK_SOURCE_DIR}/Utilities/Doxygen/doc_makeall.cmake.in
+    ${VTK_BINARY_DIR}/Utilities/Doxygen/doc_makeall.cmake
+    @ONLY)
+  
+  add_custom_target(DoxygenDoc
+    ${CMAKE_COMMAND}
+    -P ${VTK_BINARY_DIR}/Utilities/Doxygen/doc_makeall.cmake
+    DEPENDS ${VTK_BINARY_DIR}/Utilities/Doxygen/doc_makeall.cmake)
 
-configure_file(
-  ${VTK_SOURCE_DIR}/Utilities/Doxygen/doxyfile.in
-  ${VTK_BINARY_DIR}/Utilities/Doxygen/doxyfile)
-
-configure_file(
-  ${VTK_SOURCE_DIR}/Utilities/Doxygen/doc_makeall.cmake.in
-  ${VTK_BINARY_DIR}/Utilities/Doxygen/doc_makeall.cmake
-  @ONLY)
-
-add_custom_target(DoxygenDoc
-  ${CMAKE_COMMAND}
-  -P ${VTK_BINARY_DIR}/Utilities/Doxygen/doc_makeall.cmake
-  DEPENDS ${VTK_BINARY_DIR}/Utilities/Doxygen/doc_makeall.cmake)
+endif()
 
 if(NOT VTK_INSTALL_NO_DOCUMENTATION)
   macro(__vtk_install_documentation_files glob)