Added DOCS_GENERATE_DOCSET option to generate Apple documentation sets.

scripts/cmake/DocumentationSetup.cmake

-IF(DOXYGEN_FOUND)
+IF(DOXYGEN_EXECUTABLE)
 
 	OPTION(DOCS_GENERATE_DIAGRAMS "Use the DOT tool to generate class diagrams." OFF)
 	OPTION(DOCS_GENERATE_CALL_GRAPHS "Generate call dependency graphs." OFF)
 	OPTION(DOCS_GENERATE_COLLABORATION_GRAPHS "Generate collaboration graphs." OFF)
+	IF(APPLE)
+		OPTION(DOCS_GENERATE_DOCSET "Generate Apple Docsets." OFF)
+	ENDIF() # APPLE
 
-	IF(NOT DOT_TOOL_PATH AND (DOCS_GENERATE_DIAGRAMS OR DOCS_GENERATE_CALL_GRAPHS OR 
+	IF(NOT DOT_TOOL_PATH AND (DOCS_GENERATE_DIAGRAMS OR DOCS_GENERATE_CALL_GRAPHS OR
 		DOCS_GENERATE_COLLABORATION_GRAPHS))
 		MESSAGE(WARNING "The DOT tool was not found but is needed for generating doxygen diagrams!")
 	ENDIF() # DOT_TOOL_PATH AND (DOCS_GENERATE_DIAGRAMS OR ...)
@@ -17,10 +20,22 @@ IF(DOXYGEN_FOUND)
 		SET(DOCS_GENERATE_COLLABORATION_GRAPHS_STRING "YES" CACHE INTERNAL "")
 	ENDIF() # DOCS_GENERATE_COLLABORATION_GRAPHS
 
-	GET_FILENAME_COMPONENT(DOT_TOOL_PATH_ONLY ${DOT_TOOL_PATH} PATH)
+	# GET_FILENAME_COMPONENT(DOT_TOOL_PATH_ONLY ${DOT_TOOL_PATH} PATH)
 	CONFIGURE_FILE(scripts/docs/Doxyfile.in ${PROJECT_BINARY_DIR}/Doxyfile)
 	ADD_CUSTOM_TARGET(doc ${DOXYGEN_EXECUTABLE} ${PROJECT_BINARY_DIR}/Doxyfile
 		WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
 		COMMENT "Generating source code documentation with Doxygen." VERBATIM)
 
-ENDIF() # DOXYGEN_FOUND
\ No newline at end of file
+	SET(DOCS_GENERATE_TREEVIEW_STRING "YES" CACHE INTERNAL "")
+	SET(DOCS_DISABLE_INDEX_STRING "NO" CACHE INTERNAL "")
+	IF(DOCS_GENERATE_DOCSET)
+		SET(DOCS_GENERATE_TREEVIEW_STRING "NO" CACHE INTERNAL "" FORCE)
+		SET(DOCS_DISABLE_INDEX_STRING "YES" CACHE INTERNAL "" FORCE)
+		SET(DOCS_GENERATE_DOCSET_STRING "YES" CACHE INTERNAL "")
+		ADD_CUSTOM_COMMAND(TARGET doc POST_BUILD
+			COMMAND make WORKING_DIRECTORY ${PROJECT_BINARY_DIR}/docs
+			COMMENT "Generating docset ...")
+	ENDIF() # DOCS_GENERATE_DOCSET
+
+
+ENDIF() # DOXYGEN_EXECUTABLE
\ No newline at end of file

scripts/docs/Doxyfile.in

@@ -817,7 +817,7 @@ HTML_DYNAMIC_SECTIONS  = NO
 # it at startup.
 # See http://developer.apple.com/tools/creatingdocsetswithdoxygen.html for more information.
 
-GENERATE_DOCSET        = NO
+GENERATE_DOCSET        = ${DOCS_GENERATE_DOCSET_STRING}
 
 # When GENERATE_DOCSET tag is set to YES, this tag determines the name of the
 # feed. A documentation feed provides an umbrella under which multiple
@@ -930,7 +930,7 @@ QHG_LOCATION           =
 # top of each HTML page. The value NO (the default) enables the index and
 # the value YES disables it.
 
-DISABLE_INDEX          = NO
+DISABLE_INDEX          = ${DOCS_DISABLE_INDEX_STRING}
 
 # This tag can be used to set the number of enum values (range [1..20])
 # that doxygen will group on one line in the generated HTML documentation.
@@ -952,7 +952,7 @@ ENUM_VALUES_PER_LINE   = 4
 # releases of Doxygen, the values YES and NO are equivalent to FRAME and NONE
 # respectively.
 
-GENERATE_TREEVIEW      = YES
+GENERATE_TREEVIEW      = ${DOCS_GENERATE_TREEVIEW_STRING}
 
 # If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be
 # used to set the initial width (in pixels) of the frame in which the tree