1 files changed, 1166 insertions, 1166 deletions
diff --git a/dev/MinGfx/cmake/Modules/FindDoxygen.cmake b/dev/MinGfx/cmake/Modules/FindDoxygen.cmake
index c0e865f..da3c83e 100644
--- a/dev/MinGfx/cmake/Modules/FindDoxygen.cmake
+++ b/dev/MinGfx/cmake/Modules/FindDoxygen.cmake
@@ -1,1166 +1,1166 @@
-# dfk: edited one line to add CSE labs Doxygen install location to paths to search
-
-
-
-# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
-# file Copyright.txt or https://cmake.org/licensing for details.
-
-#[=======================================================================[.rst:
-FindDoxygen
------------
-
-Doxygen is a documentation generation tool (see http://www.doxygen.org).
-This module looks for Doxygen and some optional tools it supports. These
-tools are enabled as components in the :command:`find_package` command:
-
-``dot``
-  `Graphviz <http://graphviz.org>`_ ``dot`` utility used to render various
-  graphs.
-``mscgen``
-  `Message Chart Generator <http://www.mcternan.me.uk/mscgen/>`_ utility used
-  by Doxygen's ``\msc`` and ``\mscfile`` commands.
-``dia``
-  `Dia <https://wiki.gnome.org/Apps/Dia>`_ the diagram editor used by Doxygen's
-  ``\diafile`` command.
-
-Examples:
-
-.. code-block:: cmake
-
-  # Require dot, treat the other components as optional
-  find_package(Doxygen
-               REQUIRED dot
-               OPTIONAL_COMPONENTS mscgen dia)
-
-The following variables are defined by this module:
-
-.. variable:: DOXYGEN_FOUND
-
-  True if the ``doxygen`` executable was found.
-
-.. variable:: DOXYGEN_VERSION
-
-  The version reported by ``doxygen --version``.
-
-The module defines ``IMPORTED`` targets for Doxygen and each component found.
-These can be used as part of custom commands, etc. and should be preferred over
-old-style (and now deprecated) variables like ``DOXYGEN_EXECUTABLE``. The
-following import targets are defined if their corresponding executable could be
-found (the component import targets will only be defined if that component was
-requested):
-
-::
-
-  Doxygen::doxygen
-  Doxygen::dot
-  Doxygen::mscgen
-  Doxygen::dia
-
-
-Functions
-^^^^^^^^^
-
-.. command:: doxygen_add_docs
-
-  This function is intended as a convenience for adding a target for generating
-  documentation with Doxygen. It aims to provide sensible defaults so that
-  projects can generally just provide the input files and directories and that
-  will be sufficient to give sensible results. The function supports the
-  ability to customize the Doxygen configuration used to build the
-  documentation.
-
-  ::
-
-    doxygen_add_docs(targetName
-        [filesOrDirs...]
-        [ALL]
-        [USE_STAMP_FILE]
-        [WORKING_DIRECTORY dir]
-        [COMMENT comment])
-
-  The function constructs a ``Doxyfile`` and defines a custom target that runs
-  Doxygen on that generated file. The listed files and directories are used as
-  the ``INPUT`` of the generated ``Doxyfile`` and they can contain wildcards.
-  Any files that are listed explicitly will also be added as ``SOURCES`` of the
-  custom target so they will show up in an IDE project's source list.
-
-  So that relative input paths work as expected, by default the working
-  directory of the Doxygen command will be the current source directory (i.e.
-  :variable:`CMAKE_CURRENT_SOURCE_DIR`). This can be overridden with the
-  ``WORKING_DIRECTORY`` option to change the directory used as the relative
-  base point. Note also that Doxygen's default behavior is to strip the working
-  directory from relative paths in the generated documentation (see the
-  ``STRIP_FROM_PATH`` `Doxygen config option
-  <http://www.doxygen.org/manual/config.html>`_ for details).
-
-  If provided, the optional ``comment`` will be passed as the ``COMMENT`` for
-  the :command:`add_custom_target` command used to create the custom target
-  internally.
-
-  If ``ALL`` is set, the target will be added to the default build target.
-
-  If ``USE_STAMP_FILE`` is set, the custom command defined by this function will
-  create a stamp file with the name ``<targetName>.stamp`` in the current
-  binary directory whenever doxygen is re-run.  With this option present, all
-  items in ``<filesOrDirs>`` must be files (i.e. no directories, symlinks or
-  wildcards) and each of the files must exist at the time
-  ``doxygen_add_docs()`` is called.  An error will be raised if any of the
-  items listed is missing or is not a file when ``USE_STAMP_FILE`` is given.
-  A dependency will be created on each of the files so that doxygen will only
-  be re-run if one of the files is updated.  Without the ``USE_STAMP_FILE``
-  option, doxygen will always be re-run if the ``<targetName>`` target is built
-  regardless of whether anything listed in ``<filesOrDirs>`` has changed.
-
-  The contents of the generated ``Doxyfile`` can be customized by setting CMake
-  variables before calling ``doxygen_add_docs()``. Any variable with a name of
-  the form ``DOXYGEN_<tag>`` will have its value substituted for the
-  corresponding ``<tag>`` configuration option in the ``Doxyfile``. See the
-  `Doxygen documentation <http://www.doxygen.org/manual/config.html>`_ for the
-  full list of supported configuration options.
-
-  Some of Doxygen's defaults are overridden to provide more appropriate
-  behavior for a CMake project. Each of the following will be explicitly set
-  unless the variable already has a value before ``doxygen_add_docs()`` is
-  called (with some exceptions noted):
-
-  .. variable:: DOXYGEN_HAVE_DOT
-
-    Set to ``YES`` if the ``dot`` component was requested and it was found,
-    ``NO`` otherwise. Any existing value of ``DOXYGEN_HAVE_DOT`` is ignored.
-
-  .. variable:: DOXYGEN_DOT_MULTI_TARGETS
-
-    Set to ``YES`` by this module (note that this requires a ``dot`` version
-    newer than 1.8.10). This option is only meaningful if ``DOXYGEN_HAVE_DOT``
-    is also set to ``YES``.
-
-  .. variable:: DOXYGEN_GENERATE_LATEX
-
-    Set to ``NO`` by this module.
-
-  .. variable:: DOXYGEN_WARN_FORMAT
-
-    For Visual Studio based generators, this is set to the form recognized by
-    the Visual Studio IDE: ``$file($line) : $text``. For all other generators,
-    Doxygen's default value is not overridden.
-
-  .. variable:: DOXYGEN_PROJECT_NAME
-
-    Populated with the name of the current project (i.e.
-    :variable:`PROJECT_NAME`).
-
-  .. variable:: DOXYGEN_PROJECT_NUMBER
-
-    Populated with the version of the current project (i.e.
-    :variable:`PROJECT_VERSION`).
-
-  .. variable:: DOXYGEN_PROJECT_BRIEF
-
-    Populated with the description of the current project (i.e.
-    :variable:`PROJECT_DESCRIPTION`).
-
-  .. variable:: DOXYGEN_INPUT
-
-    Projects should not set this variable. It will be populated with the set of
-    files and directories passed to ``doxygen_add_docs()``, thereby providing
-    consistent behavior with the other built-in commands like
-    :command:`add_executable`, :command:`add_library` and
-    :command:`add_custom_target`. If a variable named ``DOXYGEN_INPUT`` is set
-    by the project, it will be ignored and a warning will be issued.
-
-  .. variable:: DOXYGEN_RECURSIVE
-
-    Set to ``YES`` by this module.
-
-  .. variable:: DOXYGEN_EXCLUDE_PATTERNS
-
-    If the set of inputs includes directories, this variable will specify
-    patterns used to exclude files from them. The following patterns are added
-    by ``doxygen_add_docs()`` to ensure CMake-specific files and directories
-    are not included in the input. If the project sets
-    ``DOXYGEN_EXCLUDE_PATTERNS``, those contents are merged with these
-    additional patterns rather than replacing them:
-
-    ::
-
-      */.git/*
-      */.svn/*
-      */.hg/*
-      */CMakeFiles/*
-      */_CPack_Packages/*
-      DartConfiguration.tcl
-      CMakeLists.txt
-      CMakeCache.txt
-
-  .. variable:: DOXYGEN_OUTPUT_DIRECTORY
-
-    Set to :variable:`CMAKE_CURRENT_BINARY_DIR` by this module. Note that if
-    the project provides its own value for this and it is a relative path, it
-    will be converted to an absolute path relative to the current binary
-    directory. This is necessary because doxygen will normally be run from a
-    directory within the source tree so that relative source paths work as
-    expected. If this directory does not exist, it will be recursively created
-    prior to executing the doxygen commands.
-
-To change any of these defaults or override any other Doxygen config option,
-set relevant variables before calling ``doxygen_add_docs()``. For example:
-
-  .. code-block:: cmake
-
-    set(DOXYGEN_GENERATE_HTML NO)
-    set(DOXYGEN_GENERATE_MAN YES)
-
-    doxygen_add_docs(
-        doxygen
-        ${PROJECT_SOURCE_DIR}
-        COMMENT "Generate man pages"
-    )
-
-A number of Doxygen config options accept lists of values, but Doxygen requires
-them to be separated by whitespace. CMake variables hold lists as a string with
-items separated by semi-colons, so a conversion needs to be performed. The
-``doxygen_add_docs()`` command specifically checks the following Doxygen config
-options and will convert their associated CMake variable's contents into the
-required form if set.
-
-::
-
-  ABBREVIATE_BRIEF
-  ALIASES
-  CITE_BIB_FILES
-  DIAFILE_DIRS
-  DOTFILE_DIRS
-  DOT_FONTPATH
-  ENABLED_SECTIONS
-  EXAMPLE_PATH
-  EXAMPLE_PATTERNS
-  EXCLUDE
-  EXCLUDE_PATTERNS
-  EXCLUDE_SYMBOLS
-  EXPAND_AS_DEFINED
-  EXTENSION_MAPPING
-  EXTRA_PACKAGES
-  EXTRA_SEARCH_MAPPINGS
-  FILE_PATTERNS
-  FILTER_PATTERNS
-  FILTER_SOURCE_PATTERNS
-  HTML_EXTRA_FILES
-  HTML_EXTRA_STYLESHEET
-  IGNORE_PREFIX
-  IMAGE_PATH
-  INCLUDE_FILE_PATTERNS
-  INCLUDE_PATH
-  INPUT
-  LATEX_EXTRA_FILES
-  LATEX_EXTRA_STYLESHEET
-  MATHJAX_EXTENSIONS
-  MSCFILE_DIRS
-  PLANTUML_INCLUDE_PATH
-  PREDEFINED
-  QHP_CUST_FILTER_ATTRS
-  QHP_SECT_FILTER_ATTRS
-  STRIP_FROM_INC_PATH
-  STRIP_FROM_PATH
-  TAGFILES
-  TCL_SUBST
-
-The following single value Doxygen options will be quoted automatically
-if they contain at least one space:
-
-::
-
-  CHM_FILE
-  DIA_PATH
-  DOCBOOK_OUTPUT
-  DOCSET_FEEDNAME
-  DOCSET_PUBLISHER_NAME
-  DOT_FONTNAME
-  DOT_PATH
-  EXTERNAL_SEARCH_ID
-  FILE_VERSION_FILTER
-  GENERATE_TAGFILE
-  HHC_LOCATION
-  HTML_FOOTER
-  HTML_HEADER
-  HTML_OUTPUT
-  HTML_STYLESHEET
-  INPUT_FILTER
-  LATEX_FOOTER
-  LATEX_HEADER
-  LATEX_OUTPUT
-  LAYOUT_FILE
-  MAN_OUTPUT
-  MAN_SUBDIR
-  MATHJAX_CODEFILE
-  MSCGEN_PATH
-  OUTPUT_DIRECTORY
-  PERL_PATH
-  PLANTUML_JAR_PATH
-  PROJECT_BRIEF
-  PROJECT_LOGO
-  PROJECT_NAME
-  QCH_FILE
-  QHG_LOCATION
-  QHP_CUST_FILTER_NAME
-  QHP_VIRTUAL_FOLDER
-  RTF_EXTENSIONS_FILE
-  RTF_OUTPUT
-  RTF_STYLESHEET_FILE
-  SEARCHDATA_FILE
-  USE_MDFILE_AS_MAINPAGE
-  WARN_FORMAT
-  WARN_LOGFILE
-  XML_OUTPUT
-
-There are situations where it may be undesirable for a particular config option
-to be automatically quoted by ``doxygen_add_docs()``, such as ``ALIASES`` which
-may need to include its own embedded quoting.  The ``DOXYGEN_VERBATIM_VARS``
-variable can be used to specify a list of Doxygen variables (including the
-leading ``DOXYGEN_`` prefix) which should not be quoted.  The project is then
-responsible for ensuring that those variables' values make sense when placed
-directly in the Doxygen input file.  In the case of list variables, list items
-are still separated by spaces, it is only the automatic quoting that is
-skipped.  For example, the following allows ``doxygen_add_docs()`` to apply
-quoting to ``DOXYGEN_PROJECT_BRIEF``, but not each item in the
-``DOXYGEN_ALIASES`` list (:ref:`bracket syntax <Bracket Argument>` can also
-be used to make working with embedded quotes easier):
-
-.. code-block:: cmake
-
-  set(DOXYGEN_PROJECT_BRIEF "String with spaces")
-  set(DOXYGEN_ALIASES
-      [[somealias="@some_command param"]]
-      "anotherAlias=@foobar"
-  )
-  set(DOXYGEN_VERBATIM_VARS DOXYGEN_ALIASES)
-
-The resultant ``Doxyfile`` will contain the following lines:
-
-.. code-block:: text
-
-  PROJECT_BRIEF = "String with spaces"
-  ALIASES       = somealias="@some_command param" anotherAlias=@foobar
-
-
-Deprecated Result Variables
-^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-For compatibility with previous versions of CMake, the following variables
-are also defined but they are deprecated and should no longer be used:
-
-.. variable:: DOXYGEN_EXECUTABLE
-
-  The path to the ``doxygen`` command. If projects need to refer to the
-  ``doxygen`` executable directly, they should use the ``Doxygen::doxygen``
-  import target instead.
-
-.. variable:: DOXYGEN_DOT_FOUND
-
-  True if the ``dot`` executable was found.
-
-.. variable:: DOXYGEN_DOT_EXECUTABLE
-
-  The path to the ``dot`` command. If projects need to refer to the ``dot``
-  executable directly, they should use the ``Doxygen::dot`` import target
-  instead.
-
-.. variable:: DOXYGEN_DOT_PATH
-
-  The path to the directory containing the ``dot`` executable as reported in
-  ``DOXYGEN_DOT_EXECUTABLE``. The path may have forward slashes even on Windows
-  and is not suitable for direct substitution into a ``Doxyfile.in`` template.
-  If you need this value, get the :prop_tgt:`IMPORTED_LOCATION` property of the
-  ``Doxygen::dot`` target and use :command:`get_filename_component` to extract
-  the directory part of that path. You may also want to consider using
-  :command:`file(TO_NATIVE_PATH)` to prepare the path for a Doxygen
-  configuration file.
-
-
-Deprecated Hint Variables
-^^^^^^^^^^^^^^^^^^^^^^^^^
-
-.. variable:: DOXYGEN_SKIP_DOT
-
-  This variable has no effect for the component form of ``find_package``.
-  In backward compatibility mode (i.e. without components list) it prevents
-  the finder module from searching for Graphviz's ``dot`` utility.
-
-#]=======================================================================]
-
-cmake_policy(PUSH)
-cmake_policy(SET CMP0057 NEW) # if IN_LIST
-
-# For backwards compatibility support
-if(Doxygen_FIND_QUIETLY)
-    set(DOXYGEN_FIND_QUIETLY TRUE)
-endif()
-
-# ===== Rationale for OS X AppBundle mods below =====
-#  With the OS X GUI version, Doxygen likes to be installed to /Applications
-#  and it contains the doxygen executable in the bundle. In the versions I've
-#  seen, it is located in Resources, but in general, more often binaries are
-#  located in MacOS.
-#
-#  NOTE: The official Doxygen.app distributed for OS X uses non-standard
-#  conventions. Instead of the command-line "doxygen" tool being placed in
-#  Doxygen.app/Contents/MacOS, "Doxywizard" is placed there instead and
-#  "doxygen" is placed in Contents/Resources.  This is most likely done
-#  so that something happens when people double-click on the Doxygen.app
-#  package. Unfortunately, CMake gets confused by this as when it sees the
-#  bundle it uses "Doxywizard" as the executable to use instead of
-#  "doxygen". Therefore to work-around this issue we temporarily disable
-#  the app-bundle feature, just for this CMake module:
-#
-if(APPLE)
-    # Save the old setting
-    set(TEMP_DOXYGEN_SAVE_CMAKE_FIND_APPBUNDLE ${CMAKE_FIND_APPBUNDLE})
-    # Disable the App-bundle detection feature
-    set(CMAKE_FIND_APPBUNDLE "NEVER")
-endif()
-# FYI:
-# In older versions of OS X Doxygen, dot was included with the Doxygen bundle,
-# but newer versions require you to download Graphviz.app which contains "dot"
-# or use something like homebrew.
-# ============== End OSX stuff ================
-
-#
-# Find Doxygen...
-#
-macro(_Doxygen_find_doxygen)
-    find_program(
-        DOXYGEN_EXECUTABLE
-        NAMES doxygen
-        PATHS
-            C:/Doxygen191/bin
-            "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\doxygen_is1;Inno Setup: App Path]/bin"
-            /Applications/Doxygen.app/Contents/Resources
-            /Applications/Doxygen.app/Contents/MacOS
-            /Applications/Utilities/Doxygen.app/Contents/Resources
-            /Applications/Utilities/Doxygen.app/Contents/MacOS
-        DOC "Doxygen documentation generation tool (http://www.doxygen.org)"
-    )
-    mark_as_advanced(DOXYGEN_EXECUTABLE)
-
-    if(DOXYGEN_EXECUTABLE)
-        execute_process(
-            COMMAND "${DOXYGEN_EXECUTABLE}" --version
-            OUTPUT_VARIABLE DOXYGEN_VERSION
-            OUTPUT_STRIP_TRAILING_WHITESPACE
-            RESULT_VARIABLE _Doxygen_version_result
-        )
-        if(_Doxygen_version_result)
-            message(WARNING "Unable to determine doxygen version: ${_Doxygen_version_result}")
-        endif()
-
-        # Create an imported target for Doxygen
-        if(NOT TARGET Doxygen::doxygen)
-            add_executable(Doxygen::doxygen IMPORTED GLOBAL)
-            set_target_properties(Doxygen::doxygen PROPERTIES
-                IMPORTED_LOCATION "${DOXYGEN_EXECUTABLE}"
-            )
-        endif()
-    endif()
-endmacro()
-
-#
-# Find Diagram Editor...
-#
-macro(_Doxygen_find_dia)
-    set(_x86 "(x86)")
-    find_program(
-        DOXYGEN_DIA_EXECUTABLE
-        NAMES dia
-        PATHS
-            "$ENV{ProgramFiles}/Dia"
-            "$ENV{ProgramFiles${_x86}}/Dia"
-        DOC "Diagram Editor tool for use with Doxygen"
-    )
-    mark_as_advanced(DOXYGEN_DIA_EXECUTABLE)
-
-    if(DOXYGEN_DIA_EXECUTABLE)
-        # The Doxyfile wants the path to the utility, not the entire path
-        # including file name
-        get_filename_component(DOXYGEN_DIA_PATH
-                              "${DOXYGEN_DIA_EXECUTABLE}"
-                              DIRECTORY)
-        if(WIN32)
-            file(TO_NATIVE_PATH "${DOXYGEN_DIA_PATH}" DOXYGEN_DIA_PATH)
-        endif()
-
-        # Create an imported target for component
-        if(NOT TARGET Doxygen::dia)
-            add_executable(Doxygen::dia IMPORTED GLOBAL)
-            set_target_properties(Doxygen::dia PROPERTIES
-                IMPORTED_LOCATION "${DOXYGEN_DIA_EXECUTABLE}"
-            )
-        endif()
-    endif()
-
-    unset(_x86)
-endmacro()
-
-#
-# Find Graphviz Dot...
-#
-macro(_Doxygen_find_dot)
-    if(WIN32)
-        set(_x86 "(x86)")
-        file(
-            GLOB _Doxygen_GRAPHVIZ_BIN_DIRS
-            "$ENV{ProgramFiles}/Graphviz*/bin"
-            "$ENV{ProgramFiles${_x86}}/Graphviz*/bin"
-        )
-        unset(_x86)
-    else()
-        set(_Doxygen_GRAPHVIZ_BIN_DIRS "")
-    endif()
-
-    find_program(
-        DOXYGEN_DOT_EXECUTABLE
-        NAMES dot
-        PATHS
-            ${_Doxygen_GRAPHVIZ_BIN_DIRS}
-            "$ENV{ProgramFiles}/ATT/Graphviz/bin"
-            "C:/Program Files/ATT/Graphviz/bin"
-            [HKEY_LOCAL_MACHINE\\SOFTWARE\\ATT\\Graphviz;InstallPath]/bin
-            /Applications/Graphviz.app/Contents/MacOS
-            /Applications/Utilities/Graphviz.app/Contents/MacOS
-            /Applications/Doxygen.app/Contents/Resources
-            /Applications/Doxygen.app/Contents/MacOS
-            /Applications/Utilities/Doxygen.app/Contents/Resources
-            /Applications/Utilities/Doxygen.app/Contents/MacOS
-        DOC "Dot tool for use with Doxygen"
-    )
-    mark_as_advanced(DOXYGEN_DOT_EXECUTABLE)
-
-    if(DOXYGEN_DOT_EXECUTABLE)
-        # The Doxyfile wants the path to the utility, not the entire path
-        # including file name
-        get_filename_component(DOXYGEN_DOT_PATH
-                               "${DOXYGEN_DOT_EXECUTABLE}"
-                               DIRECTORY)
-        if(WIN32)
-            file(TO_NATIVE_PATH "${DOXYGEN_DOT_PATH}" DOXYGEN_DOT_PATH)
-        endif()
-
-        # Create an imported target for component
-        if(NOT TARGET Doxygen::dot)
-            add_executable(Doxygen::dot IMPORTED GLOBAL)
-            set_target_properties(Doxygen::dot PROPERTIES
-                IMPORTED_LOCATION "${DOXYGEN_DOT_EXECUTABLE}"
-            )
-        endif()
-    endif()
-
-    unset(_Doxygen_GRAPHVIZ_BIN_DIRS)
-endmacro()
-
-#
-# Find Message Sequence Chart...
-#
-macro(_Doxygen_find_mscgen)
-    set(_x86 "(x86)")
-    find_program(
-        DOXYGEN_MSCGEN_EXECUTABLE
-        NAMES mscgen
-        PATHS
-            "$ENV{ProgramFiles}/Mscgen"
-            "$ENV{ProgramFiles${_x86}}/Mscgen"
-        DOC "Message sequence chart tool for use with Doxygen"
-    )
-    mark_as_advanced(DOXYGEN_MSCGEN_EXECUTABLE)
-
-    if(DOXYGEN_MSCGEN_EXECUTABLE)
-        # The Doxyfile wants the path to the utility, not the entire path
-        # including file name
-        get_filename_component(DOXYGEN_MSCGEN_PATH
-                               "${DOXYGEN_MSCGEN_EXECUTABLE}"
-                               DIRECTORY)
-        if(WIN32)
-            file(TO_NATIVE_PATH "${DOXYGEN_MSCGEN_PATH}" DOXYGEN_MSCGEN_PATH)
-        endif()
-
-        # Create an imported target for component
-        if(NOT TARGET Doxygen::mscgen)
-            add_executable(Doxygen::mscgen IMPORTED GLOBAL)
-            set_target_properties(Doxygen::mscgen PROPERTIES
-                IMPORTED_LOCATION "${DOXYGEN_MSCGEN_EXECUTABLE}"
-            )
-        endif()
-    endif()
-
-    unset(_x86)
-endmacro()
-
-# Make sure `doxygen` is one of the components to find
-set(_Doxygen_keep_backward_compat FALSE)
-if(NOT Doxygen_FIND_COMPONENTS)
-    # Search at least for `doxygen` executable
-    set(Doxygen_FIND_COMPONENTS doxygen)
-    # Preserve backward compatibility:
-    # search for `dot` also if `DOXYGEN_SKIP_DOT` is not explicitly disable this.
-    if(NOT DOXYGEN_SKIP_DOT)
-        list(APPEND Doxygen_FIND_COMPONENTS dot)
-    endif()
-    set(_Doxygen_keep_backward_compat TRUE)
-elseif(NOT doxygen IN_LIST Doxygen_FIND_COMPONENTS)
-    list(INSERT Doxygen_FIND_COMPONENTS 0 doxygen)
-endif()
-
-#
-# Find all requested components of Doxygen...
-#
-foreach(_comp IN LISTS Doxygen_FIND_COMPONENTS)
-    if(_comp STREQUAL "doxygen")
-        _Doxygen_find_doxygen()
-    elseif(_comp STREQUAL "dia")
-        _Doxygen_find_dia()
-    elseif(_comp STREQUAL "dot")
-        _Doxygen_find_dot()
-    elseif(_comp STREQUAL "mscgen")
-        _Doxygen_find_mscgen()
-    else()
-        message(WARNING "${_comp} is not a valid Doxygen component")
-        set(Doxygen_${_comp}_FOUND FALSE)
-        continue()
-    endif()
-
-    if(TARGET Doxygen::${_comp})
-        set(Doxygen_${_comp}_FOUND TRUE)
-    else()
-        set(Doxygen_${_comp}_FOUND FALSE)
-    endif()
-endforeach()
-unset(_comp)
-
-# Verify find results
-#include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(
-    Doxygen
-    REQUIRED_VARS DOXYGEN_EXECUTABLE
-    VERSION_VAR DOXYGEN_VERSION
-    HANDLE_COMPONENTS
-)
-
-#
-# Backwards compatibility...
-#
-if(APPLE)
-    # Restore the old app-bundle setting
-    set(CMAKE_FIND_APPBUNDLE ${TEMP_DOXYGEN_SAVE_CMAKE_FIND_APPBUNDLE})
-endif()
-
-# Maintain the _FOUND variables as "YES" or "NO" for backwards
-# compatibility. This allows people to substitute them directly into
-# Doxyfile with configure_file().
-if(DOXYGEN_FOUND)
-    set(DOXYGEN_FOUND "YES")
-else()
-    set(DOXYGEN_FOUND "NO")
-endif()
-if(_Doxygen_keep_backward_compat)
-    if(Doxygen_dot_FOUND)
-        set(DOXYGEN_DOT_FOUND "YES")
-    else()
-        set(DOXYGEN_DOT_FOUND "NO")
-    endif()
-
-    # For backwards compatibility support for even older CMake versions
-    set(DOXYGEN ${DOXYGEN_EXECUTABLE})
-    set(DOT ${DOXYGEN_DOT_EXECUTABLE})
-
-    # No need to keep any backward compatibility for `DOXYGEN_MSCGEN_XXX`
-    # and `DOXYGEN_DIA_XXX` since they were not supported before component
-    # support was added
-endif()
-unset(_Doxygen_keep_backward_compat)
-
-#
-# Allow full control of Doxygen from CMakeLists.txt
-#
-
-# Prepare a template Doxyfile and Doxygen's default values CMake file
-if(TARGET Doxygen::doxygen)
-    # If doxygen was found, use it to generate a minimal default Doxyfile.
-    # We will delete this file after we have finished using it below to
-    # generate the other files that doxygen_add_docs() will use.
-    set(_Doxygen_tpl "${CMAKE_BINARY_DIR}/CMakeDoxyfile.tpl")
-    execute_process(
-        COMMAND "${DOXYGEN_EXECUTABLE}" -s -g "${_Doxygen_tpl}"
-        OUTPUT_QUIET
-        RESULT_VARIABLE _Doxygen_tpl_result
-    )
-    if(_Doxygen_tpl_result)
-        message(FATAL_ERROR
-                "Unable to generate Doxyfile template: ${_Doxygen_tpl_result}")
-    elseif(NOT EXISTS "${_Doxygen_tpl}")
-        message(FATAL_ERROR
-                "Doxygen has failed to generate a Doxyfile template")
-    endif()
-
-    # Write a do-not-edit header to files we are going to generate...
-    set(_Doxygen_dne_header
-[[
-#
-# DO NOT EDIT! THIS FILE WAS GENERATED BY CMAKE!
-#
-
-]]
-    )
-    # We only need one copy of these across the whole build, since their
-    # content is only dependent on the version of Doxygen being used. Therefore
-    # we always put them at the top of the build tree so that they are in a
-    # predictable location.
-    set(_doxyfile_in       "${CMAKE_BINARY_DIR}/CMakeDoxyfile.in")
-    set(_doxyfile_defaults "${CMAKE_BINARY_DIR}/CMakeDoxygenDefaults.cmake")
-
-    file(WRITE "${_doxyfile_in}"       ${_Doxygen_dne_header})
-    file(WRITE "${_doxyfile_defaults}" ${_Doxygen_dne_header})
-
-    # Get strings containing a configuration key from the template Doxyfile
-    # we obtained from this version of Doxygen. Because some options are split
-    # across multiple lines by ending lines with backslashes, we cannot just
-    # use file(STRINGS...) with a REGEX. Instead, read lines without a REGEX
-    # so that file(STRINGS...) handles the trailing backslash as a line
-    # continuation. It stores multi-lines as lists, so we then have to replace
-    # the ";" list separator with backslashed newlines again so that we get the
-    # original content stored back as the value part.
-    file(STRINGS "${_Doxygen_tpl}" _file_lines)
-    unset(_Doxygen_tpl_params)
-    foreach(_line IN LISTS _file_lines)
-        if(_line MATCHES "([A-Z][A-Z0-9_]+)( *=)(.*)")
-            set(_key "${CMAKE_MATCH_1}")
-            set(_eql "${CMAKE_MATCH_2}")
-            set(_value "${CMAKE_MATCH_3}")
-            string(REPLACE "\\" "\\\\" _value "${_value}")
-            string(REPLACE ";" "\\\n" _value "${_value}")
-            list(APPEND _Doxygen_tpl_params "${_key}${_eql}${_value}")
-        endif()
-    endforeach()
-
-    # Build up a Doxyfile that provides @configVar@ substitutions for each
-    # Doxygen config option as well as a separate CMake script which provides
-    # the default value for each of those options if the project doesn't supply
-    # them. Each config option will support substitution of a CMake variable
-    # of the same name except with DOXYGEN_ prepended.
-    foreach(_Doxygen_param IN LISTS _Doxygen_tpl_params)
-        if(_Doxygen_param MATCHES "([A-Z][A-Z0-9_]+)( *)=( (.*))?")
-            # Ok, this is a config key with a value
-            if(CMAKE_MATCH_COUNT EQUAL 4)
-                file(APPEND "${_doxyfile_in}"
-                    "${CMAKE_MATCH_1}${CMAKE_MATCH_2}= @DOXYGEN_${CMAKE_MATCH_1}@\n")
-                # Remove the backslashes we had to preserve to handle newlines
-                string(REPLACE "\\\n" "\n" _value "${CMAKE_MATCH_4}")
-                file(APPEND "${_doxyfile_defaults}"
-"if(NOT DEFINED DOXYGEN_${CMAKE_MATCH_1})
-    set(DOXYGEN_${CMAKE_MATCH_1} ${_value})
-endif()
-")
-            # Ok, this is a config key with empty default value
-            elseif(CMAKE_MATCH_COUNT EQUAL 2)
-                file(APPEND "${_doxyfile_in}"
-                    "${CMAKE_MATCH_1}${CMAKE_MATCH_2}= @DOXYGEN_${CMAKE_MATCH_1}@\n")
-            else()
-                message(AUTHOR_WARNING
-"Unexpected line format! Code review required!\nFault line: ${_Doxygen_param}")
-            endif()
-        else()
-            message(AUTHOR_WARNING
-"Unexpected line format! Code review required!\nFault line: ${_Doxygen_param}")
-        endif()
-    endforeach()
-
-    # Ok, dumped defaults are not needed anymore...
-    file(REMOVE "${_Doxygen_tpl}")
-
-    unset(_Doxygen_param)
-    unset(_Doxygen_tpl_params)
-    unset(_Doxygen_dne_header)
-    unset(_Doxygen_tpl)
-
-endif()
-
-function(doxygen_quote_value VARIABLE)
-    # Quote a value of the given variable if:
-    # - VARIABLE parameter was really given
-    # - the variable it names is defined and is not present in the list
-    #   specified by DOXYGEN_VERBATIM_VARS (if set)
-    # - the value of the named variable isn't already quoted
-    # - the value has spaces
-    if(VARIABLE AND DEFINED ${VARIABLE} AND
-       NOT ${VARIABLE} MATCHES "^\".* .*\"$" AND ${VARIABLE} MATCHES " " AND
-       NOT (DEFINED DOXYGEN_VERBATIM_VARS AND
-            "${VARIABLE}" IN_LIST DOXYGEN_VERBATIM_VARS))
-        set(${VARIABLE} "\"${${VARIABLE}}\"" PARENT_SCOPE)
-    endif()
-endfunction()
-
-function(doxygen_list_to_quoted_strings LIST_VARIABLE)
-    if(LIST_VARIABLE AND DEFINED ${LIST_VARIABLE})
-        unset(_inputs)
-        unset(_sep)
-        unset(_verbatim)
-        # Have to test if list items should be treated as verbatim here
-        # because we lose the variable name when we pass just one list item
-        # to doxygen_quote_value() below
-        if(DEFINED DOXYGEN_VERBATIM_VARS AND
-           "${LIST_VARIABLE}" IN_LIST DOXYGEN_VERBATIM_VARS)
-            set(_verbatim True)
-        endif()
-        foreach(_in IN LISTS ${LIST_VARIABLE})
-            if(NOT _verbatim)
-                doxygen_quote_value(_in)
-            endif()
-            string(APPEND _inputs "${_sep}${_in}")
-            set(_sep " ")
-        endforeach()
-        set(${LIST_VARIABLE} "${_inputs}" PARENT_SCOPE)
-    endif()
-endfunction()
-
-function(doxygen_add_docs targetName)
-    set(_options ALL USE_STAMP_FILE)
-    set(_one_value_args WORKING_DIRECTORY COMMENT)
-    set(_multi_value_args)
-    cmake_parse_arguments(_args
-                          "${_options}"
-                          "${_one_value_args}"
-                          "${_multi_value_args}"
-                          ${ARGN})
-
-    if(NOT _args_COMMENT)
-        set(_args_COMMENT "Generate API documentation for ${targetName}")
-    endif()
-
-    if(NOT _args_WORKING_DIRECTORY)
-        set(_args_WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}")
-    endif()
-
-    if(DEFINED DOXYGEN_INPUT)
-        message(WARNING
-"DOXYGEN_INPUT is set but it will be ignored. Pass the files and directories \
-directly to the doxygen_add_docs() command instead.")
-    endif()
-    set(DOXYGEN_INPUT ${_args_UNPARSED_ARGUMENTS})
-
-    if(NOT TARGET Doxygen::doxygen)
-        message(FATAL_ERROR "Doxygen was not found, needed by \
-doxygen_add_docs() for target ${targetName}")
-    endif()
-
-    # If not already defined, set some relevant defaults based on the
-    # assumption that the documentation is for the whole project. Details
-    # specified in the project() command will be used to populate a number of
-    # these defaults.
-
-    if(NOT DEFINED DOXYGEN_PROJECT_NAME)
-        # The PROJECT_NAME tag is a single word (or a sequence of words
-        # surrounded by double-quotes, unless you are using Doxywizard) that
-        # should identify the project for which the documentation is generated.
-        # This name is used in the title of most generated pages and in a few
-        # other places. The default value is: My Project.
-        set(DOXYGEN_PROJECT_NAME ${PROJECT_NAME})
-    endif()
-
-    if(NOT DEFINED DOXYGEN_PROJECT_NUMBER)
-        # The PROJECT_NUMBER tag can be used to enter a project or revision
-        # number. This could be handy for archiving the generated documentation
-        # or if some version control system is used.
-        set(DOXYGEN_PROJECT_NUMBER ${PROJECT_VERSION})
-    endif()
-
-    if(NOT DEFINED DOXYGEN_PROJECT_BRIEF)
-        # Using the PROJECT_BRIEF tag one can provide an optional one line
-        # description for a project that appears at the top of each page and
-        # should give viewer a quick idea about the purpose of the project.
-        # Keep the description short.
-        set(DOXYGEN_PROJECT_BRIEF "${PROJECT_DESCRIPTION}")
-    endif()
-
-    if(NOT DEFINED DOXYGEN_RECURSIVE)
-        # The RECURSIVE tag can be used to specify whether or not
-        # subdirectories should be searched for input files as well. CMake
-        # projects generally evolve to span multiple directories, so it makes
-        # more sense for this to be on by default. Doxygen's default value
-        # has this setting turned off, so we override it.
-        set(DOXYGEN_RECURSIVE YES)
-    endif()
-
-    if(NOT DEFINED DOXYGEN_OUTPUT_DIRECTORY)
-        # The OUTPUT_DIRECTORY tag is used to specify the (relative or
-        # absolute) path into which the generated documentation will be
-        # written. If a relative path is used, Doxygen will interpret it as
-        # being relative to the location where doxygen was started, but we need
-        # to run Doxygen in the source tree so that relative input paths work
-        # intuitively. Therefore, we ensure that the output directory is always
-        # an absolute path and if the project provided a relative path, we
-        # treat it as relative to the current BINARY directory so that output
-        # is not generated inside the source tree.
-        set(DOXYGEN_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
-    elseif(NOT IS_ABSOLUTE "${DOXYGEN_OUTPUT_DIRECTORY}")
-        get_filename_component(DOXYGEN_OUTPUT_DIRECTORY
-                               "${DOXYGEN_OUTPUT_DIRECTORY}"
-                               ABSOLUTE
-                               BASE_DIR "${CMAKE_CURRENT_BINARY_DIR}")
-    endif()
-
-    if(NOT DEFINED DOXYGEN_HAVE_DOT)
-        # If you set the HAVE_DOT tag to YES then doxygen will assume the dot
-        # tool is available from the path. This tool is part of Graphviz (see:
-        # http://www.graphviz.org/), a graph visualization toolkit from AT&T
-        # and Lucent Bell Labs. The other options in this section have no
-        # effect if this option is set to NO.
-        # Doxygen's default value is: NO.
-        if(Doxygen_dot_FOUND)
-          set(DOXYGEN_HAVE_DOT "YES")
-        else()
-          set(DOXYGEN_HAVE_DOT "NO")
-        endif()
-    endif()
-
-    if(NOT DEFINED DOXYGEN_DOT_MULTI_TARGETS)
-        # Set the DOT_MULTI_TARGETS tag to YES to allow dot to generate
-        # multiple output files in one run (i.e. multiple -o and -T options on
-        # the command line). This makes dot run faster, but since only newer
-        # versions of dot (>1.8.10) support this, Doxygen disables this feature
-        # by default.
-        # This tag requires that the tag HAVE_DOT is set to YES.
-        set(DOXYGEN_DOT_MULTI_TARGETS YES)
-    endif()
-
-    if(NOT DEFINED DOXYGEN_GENERATE_LATEX)
-        # If the GENERATE_LATEX tag is set to YES, doxygen will generate LaTeX
-        # output. We only want the HTML output enabled by default, so we turn
-        # this off if the project hasn't specified it.
-        set(DOXYGEN_GENERATE_LATEX NO)
-    endif()
-
-    if(NOT DEFINED DOXYGEN_WARN_FORMAT)
-        if(CMAKE_VS_MSBUILD_COMMAND OR CMAKE_VS_DEVENV_COMMAND)
-            # The WARN_FORMAT tag determines the format of the warning messages
-            # that doxygen can produce. The string should contain the $file,
-            # $line and $text tags, which will be replaced by the file and line
-            # number from which the warning originated and the warning text.
-            # Optionally, the format may contain $version, which will be
-            # replaced by the version of the file (if it could be obtained via
-            # FILE_VERSION_FILTER).
-            # Doxygen's default value is: $file:$line: $text
-            set(DOXYGEN_WARN_FORMAT "$file($line) : $text ")
-        endif()
-    endif()
-
-    if(DEFINED DOXYGEN_WARN_LOGFILE AND NOT IS_ABSOLUTE "${DOXYGEN_WARN_LOGFILE}")
-        # The WARN_LOGFILE tag can be used to specify a file to which warning and error
-        # messages should be written. If left blank the output is written to standard
-        # error (stderr).
-        get_filename_component(DOXYGEN_WARN_LOGFILE
-                               "${DOXYGEN_WARN_LOGFILE}"
-                               ABSOLUTE
-                               BASE_DIR "${CMAKE_CURRENT_BINARY_DIR}")
-    endif()
-
-    # Any files from the INPUT that match any of the EXCLUDE_PATTERNS will be
-    # excluded from the set of input files. We provide some additional patterns
-    # to prevent commonly unwanted things from CMake builds being pulled in.
-    #
-    # Note that the wildcards are matched against the file with absolute path,
-    # so to exclude all test directories for example use the pattern */test/*
-    list(
-        APPEND
-        DOXYGEN_EXCLUDE_PATTERNS
-        "*/.git/*"
-        "*/.svn/*"
-        "*/.hg/*"
-        "*/CMakeFiles/*"
-        "*/_CPack_Packages/*"
-        "DartConfiguration.tcl"
-        "CMakeLists.txt"
-        "CMakeCache.txt"
-    )
-
-    # Now bring in Doxgen's defaults for those things the project has not
-    # already set and we have not provided above
-    include("${CMAKE_BINARY_DIR}/CMakeDoxygenDefaults.cmake" OPTIONAL)
-
-    # Cleanup built HTMLs on "make clean"
-    # TODO Any other dirs?
-    if(DOXYGEN_GENERATE_HTML)
-        if(IS_ABSOLUTE "${DOXYGEN_HTML_OUTPUT}")
-            set(_args_clean_html_dir "${DOXYGEN_HTML_OUTPUT}")
-        else()
-            set(_args_clean_html_dir
-                "${DOXYGEN_OUTPUT_DIRECTORY}/${DOXYGEN_HTML_OUTPUT}")
-        endif()
-        set_property(DIRECTORY APPEND PROPERTY
-            ADDITIONAL_CLEAN_FILES "${_args_clean_html_dir}")
-    endif()
-
-    # Build up a list of files we can identify from the inputs so we can list
-    # them as DEPENDS and SOURCES in the custom command/target (the latter
-    # makes them display in IDEs). This must be done before we transform the
-    # various DOXYGEN_... variables below because we need to process
-    # DOXYGEN_INPUT as a list first.
-    unset(_sources)
-    foreach(_item IN LISTS DOXYGEN_INPUT)
-        get_filename_component(_abs_item "${_item}" ABSOLUTE
-                               BASE_DIR "${_args_WORKING_DIRECTORY}")
-        get_source_file_property(_isGenerated "${_abs_item}" GENERATED)
-        if(_isGenerated OR
-           (EXISTS "${_abs_item}" AND
-            NOT IS_DIRECTORY "${_abs_item}" AND
-            NOT IS_SYMLINK "${_abs_item}"))
-            list(APPEND _sources "${_abs_item}")
-        elseif(_args_USE_STAMP_FILE)
-            message(FATAL_ERROR "Source does not exist or is not a file:\n"
-                "    ${_abs_item}\n"
-                "Only existing files may be specified when the "
-                "USE_STAMP_FILE option is given.")
-        endif()
-    endforeach()
-
-    # Transform known list type options into space separated strings.
-    set(_doxygen_list_options
-        ABBREVIATE_BRIEF
-        ALIASES
-        CITE_BIB_FILES
-        DIAFILE_DIRS
-        DOTFILE_DIRS
-        DOT_FONTPATH
-        ENABLED_SECTIONS
-        EXAMPLE_PATH
-        EXAMPLE_PATTERNS
-        EXCLUDE
-        EXCLUDE_PATTERNS
-        EXCLUDE_SYMBOLS
-        EXPAND_AS_DEFINED
-        EXTENSION_MAPPING
-        EXTRA_PACKAGES
-        EXTRA_SEARCH_MAPPINGS
-        FILE_PATTERNS
-        FILTER_PATTERNS
-        FILTER_SOURCE_PATTERNS
-        HTML_EXTRA_FILES
-        HTML_EXTRA_STYLESHEET
-        IGNORE_PREFIX
-        IMAGE_PATH
-        INCLUDE_FILE_PATTERNS
-        INCLUDE_PATH
-        INPUT
-        LATEX_EXTRA_FILES
-        LATEX_EXTRA_STYLESHEET
-        MATHJAX_EXTENSIONS
-        MSCFILE_DIRS
-        PLANTUML_INCLUDE_PATH
-        PREDEFINED
-        QHP_CUST_FILTER_ATTRS
-        QHP_SECT_FILTER_ATTRS
-        STRIP_FROM_INC_PATH
-        STRIP_FROM_PATH
-        TAGFILES
-        TCL_SUBST
-    )
-    foreach(_item IN LISTS _doxygen_list_options)
-        doxygen_list_to_quoted_strings(DOXYGEN_${_item})
-    endforeach()
-
-    # Transform known single value variables which may contain spaces, such as
-    # paths or description strings.
-    set(_doxygen_quoted_options
-        CHM_FILE
-        DIA_PATH
-        DOCBOOK_OUTPUT
-        DOCSET_FEEDNAME
-        DOCSET_PUBLISHER_NAME
-        DOT_FONTNAME
-        DOT_PATH
-        EXTERNAL_SEARCH_ID
-        FILE_VERSION_FILTER
-        GENERATE_TAGFILE
-        HHC_LOCATION
-        HTML_FOOTER
-        HTML_HEADER
-        HTML_OUTPUT
-        HTML_STYLESHEET
-        INPUT_FILTER
-        LATEX_FOOTER
-        LATEX_HEADER
-        LATEX_OUTPUT
-        LAYOUT_FILE
-        MAN_OUTPUT
-        MAN_SUBDIR
-        MATHJAX_CODEFILE
-        MSCGEN_PATH
-        OUTPUT_DIRECTORY
-        PERL_PATH
-        PLANTUML_JAR_PATH
-        PROJECT_BRIEF
-        PROJECT_LOGO
-        PROJECT_NAME
-        QCH_FILE
-        QHG_LOCATION
-        QHP_CUST_FILTER_NAME
-        QHP_VIRTUAL_FOLDER
-        RTF_EXTENSIONS_FILE
-        RTF_OUTPUT
-        RTF_STYLESHEET_FILE
-        SEARCHDATA_FILE
-        USE_MDFILE_AS_MAINPAGE
-        WARN_FORMAT
-        WARN_LOGFILE
-        XML_OUTPUT
-    )
-
-    # Store the unmodified value of DOXYGEN_OUTPUT_DIRECTORY prior to invoking
-    # doxygen_quote_value() below. This will mutate the string specifically for
-    # consumption by Doxygen's config file, which we do not want when we use it
-    # later in the custom target's commands.
-    set( _original_doxygen_output_dir ${DOXYGEN_OUTPUT_DIRECTORY} )
-
-    foreach(_item IN LISTS _doxygen_quoted_options)
-        doxygen_quote_value(DOXYGEN_${_item})
-    endforeach()
-
-    # Prepare doxygen configuration file
-    set(_doxyfile_template "${CMAKE_BINARY_DIR}/CMakeDoxyfile.in")
-    set(_target_doxyfile "${CMAKE_CURRENT_BINARY_DIR}/Doxyfile.${targetName}")
-    configure_file("${_doxyfile_template}" "${_target_doxyfile}")
-
-    unset(_all)
-    if(${_args_ALL})
-        set(_all ALL)
-    endif()
-
-    # Only create the stamp file if asked to. If we don't create it,
-    # the target will always be considered out-of-date.
-    if(_args_USE_STAMP_FILE)
-        set(__stamp_file "${CMAKE_CURRENT_BINARY_DIR}/${targetName}.stamp")
-        add_custom_command(
-            VERBATIM
-            OUTPUT ${__stamp_file}
-            COMMAND ${CMAKE_COMMAND} -E make_directory ${_original_doxygen_output_dir}
-            COMMAND "${DOXYGEN_EXECUTABLE}" "${_target_doxyfile}"
-            COMMAND ${CMAKE_COMMAND} -E touch ${__stamp_file}
-            WORKING_DIRECTORY "${_args_WORKING_DIRECTORY}"
-            DEPENDS "${_target_doxyfile}" ${_sources}
-            COMMENT "${_args_COMMENT}"
-        )
-        add_custom_target(${targetName} ${_all}
-            DEPENDS ${__stamp_file}
-            SOURCES ${_sources}
-        )
-        unset(__stamp_file)
-    else()
-        add_custom_target( ${targetName} ${_all} VERBATIM
-            COMMAND ${CMAKE_COMMAND} -E make_directory ${_original_doxygen_output_dir}
-            COMMAND "${DOXYGEN_EXECUTABLE}" "${_target_doxyfile}"
-            WORKING_DIRECTORY "${_args_WORKING_DIRECTORY}"
-            DEPENDS "${_target_doxyfile}" ${_sources}
-            COMMENT "${_args_COMMENT}"
-            SOURCES ${_sources}
-        )
-    endif()
-
-endfunction()
-
-cmake_policy(POP)
+# dfk: edited one line to add CSE labs Doxygen install location to paths to search
+
+
+
+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
+
+#[=======================================================================[.rst:
+FindDoxygen
+-----------
+
+Doxygen is a documentation generation tool (see http://www.doxygen.org).
+This module looks for Doxygen and some optional tools it supports. These
+tools are enabled as components in the :command:`find_package` command:
+
+``dot``
+  `Graphviz <http://graphviz.org>`_ ``dot`` utility used to render various
+  graphs.
+``mscgen``
+  `Message Chart Generator <http://www.mcternan.me.uk/mscgen/>`_ utility used
+  by Doxygen's ``\msc`` and ``\mscfile`` commands.
+``dia``
+  `Dia <https://wiki.gnome.org/Apps/Dia>`_ the diagram editor used by Doxygen's
+  ``\diafile`` command.
+
+Examples:
+
+.. code-block:: cmake
+
+  # Require dot, treat the other components as optional
+  find_package(Doxygen
+               REQUIRED dot
+               OPTIONAL_COMPONENTS mscgen dia)
+
+The following variables are defined by this module:
+
+.. variable:: DOXYGEN_FOUND
+
+  True if the ``doxygen`` executable was found.
+
+.. variable:: DOXYGEN_VERSION
+
+  The version reported by ``doxygen --version``.
+
+The module defines ``IMPORTED`` targets for Doxygen and each component found.
+These can be used as part of custom commands, etc. and should be preferred over
+old-style (and now deprecated) variables like ``DOXYGEN_EXECUTABLE``. The
+following import targets are defined if their corresponding executable could be
+found (the component import targets will only be defined if that component was
+requested):
+
+::
+
+  Doxygen::doxygen
+  Doxygen::dot
+  Doxygen::mscgen
+  Doxygen::dia
+
+
+Functions
+^^^^^^^^^
+
+.. command:: doxygen_add_docs
+
+  This function is intended as a convenience for adding a target for generating
+  documentation with Doxygen. It aims to provide sensible defaults so that
+  projects can generally just provide the input files and directories and that
+  will be sufficient to give sensible results. The function supports the
+  ability to customize the Doxygen configuration used to build the
+  documentation.
+
+  ::
+
+    doxygen_add_docs(targetName
+        [filesOrDirs...]
+        [ALL]
+        [USE_STAMP_FILE]
+        [WORKING_DIRECTORY dir]
+        [COMMENT comment])
+
+  The function constructs a ``Doxyfile`` and defines a custom target that runs
+  Doxygen on that generated file. The listed files and directories are used as
+  the ``INPUT`` of the generated ``Doxyfile`` and they can contain wildcards.
+  Any files that are listed explicitly will also be added as ``SOURCES`` of the
+  custom target so they will show up in an IDE project's source list.
+
+  So that relative input paths work as expected, by default the working
+  directory of the Doxygen command will be the current source directory (i.e.
+  :variable:`CMAKE_CURRENT_SOURCE_DIR`). This can be overridden with the
+  ``WORKING_DIRECTORY`` option to change the directory used as the relative
+  base point. Note also that Doxygen's default behavior is to strip the working
+  directory from relative paths in the generated documentation (see the
+  ``STRIP_FROM_PATH`` `Doxygen config option
+  <http://www.doxygen.org/manual/config.html>`_ for details).
+
+  If provided, the optional ``comment`` will be passed as the ``COMMENT`` for
+  the :command:`add_custom_target` command used to create the custom target
+  internally.
+
+  If ``ALL`` is set, the target will be added to the default build target.
+
+  If ``USE_STAMP_FILE`` is set, the custom command defined by this function will
+  create a stamp file with the name ``<targetName>.stamp`` in the current
+  binary directory whenever doxygen is re-run.  With this option present, all
+  items in ``<filesOrDirs>`` must be files (i.e. no directories, symlinks or
+  wildcards) and each of the files must exist at the time
+  ``doxygen_add_docs()`` is called.  An error will be raised if any of the
+  items listed is missing or is not a file when ``USE_STAMP_FILE`` is given.
+  A dependency will be created on each of the files so that doxygen will only
+  be re-run if one of the files is updated.  Without the ``USE_STAMP_FILE``
+  option, doxygen will always be re-run if the ``<targetName>`` target is built
+  regardless of whether anything listed in ``<filesOrDirs>`` has changed.
+
+  The contents of the generated ``Doxyfile`` can be customized by setting CMake
+  variables before calling ``doxygen_add_docs()``. Any variable with a name of
+  the form ``DOXYGEN_<tag>`` will have its value substituted for the
+  corresponding ``<tag>`` configuration option in the ``Doxyfile``. See the
+  `Doxygen documentation <http://www.doxygen.org/manual/config.html>`_ for the
+  full list of supported configuration options.
+
+  Some of Doxygen's defaults are overridden to provide more appropriate
+  behavior for a CMake project. Each of the following will be explicitly set
+  unless the variable already has a value before ``doxygen_add_docs()`` is
+  called (with some exceptions noted):
+
+  .. variable:: DOXYGEN_HAVE_DOT
+
+    Set to ``YES`` if the ``dot`` component was requested and it was found,
+    ``NO`` otherwise. Any existing value of ``DOXYGEN_HAVE_DOT`` is ignored.
+
+  .. variable:: DOXYGEN_DOT_MULTI_TARGETS
+
+    Set to ``YES`` by this module (note that this requires a ``dot`` version
+    newer than 1.8.10). This option is only meaningful if ``DOXYGEN_HAVE_DOT``
+    is also set to ``YES``.
+
+  .. variable:: DOXYGEN_GENERATE_LATEX
+
+    Set to ``NO`` by this module.
+
+  .. variable:: DOXYGEN_WARN_FORMAT
+
+    For Visual Studio based generators, this is set to the form recognized by
+    the Visual Studio IDE: ``$file($line) : $text``. For all other generators,
+    Doxygen's default value is not overridden.
+
+  .. variable:: DOXYGEN_PROJECT_NAME
+
+    Populated with the name of the current project (i.e.
+    :variable:`PROJECT_NAME`).
+
+  .. variable:: DOXYGEN_PROJECT_NUMBER
+
+    Populated with the version of the current project (i.e.
+    :variable:`PROJECT_VERSION`).
+
+  .. variable:: DOXYGEN_PROJECT_BRIEF
+
+    Populated with the description of the current project (i.e.
+    :variable:`PROJECT_DESCRIPTION`).
+
+  .. variable:: DOXYGEN_INPUT
+
+    Projects should not set this variable. It will be populated with the set of
+    files and directories passed to ``doxygen_add_docs()``, thereby providing
+    consistent behavior with the other built-in commands like
+    :command:`add_executable`, :command:`add_library` and
+    :command:`add_custom_target`. If a variable named ``DOXYGEN_INPUT`` is set
+    by the project, it will be ignored and a warning will be issued.
+
+  .. variable:: DOXYGEN_RECURSIVE
+
+    Set to ``YES`` by this module.
+
+  .. variable:: DOXYGEN_EXCLUDE_PATTERNS
+
+    If the set of inputs includes directories, this variable will specify
+    patterns used to exclude files from them. The following patterns are added
+    by ``doxygen_add_docs()`` to ensure CMake-specific files and directories
+    are not included in the input. If the project sets
+    ``DOXYGEN_EXCLUDE_PATTERNS``, those contents are merged with these
+    additional patterns rather than replacing them:
+
+    ::
+
+      */.git/*
+      */.svn/*
+      */.hg/*
+      */CMakeFiles/*
+      */_CPack_Packages/*
+      DartConfiguration.tcl
+      CMakeLists.txt
+      CMakeCache.txt
+
+  .. variable:: DOXYGEN_OUTPUT_DIRECTORY
+
+    Set to :variable:`CMAKE_CURRENT_BINARY_DIR` by this module. Note that if
+    the project provides its own value for this and it is a relative path, it
+    will be converted to an absolute path relative to the current binary
+    directory. This is necessary because doxygen will normally be run from a
+    directory within the source tree so that relative source paths work as
+    expected. If this directory does not exist, it will be recursively created
+    prior to executing the doxygen commands.
+
+To change any of these defaults or override any other Doxygen config option,
+set relevant variables before calling ``doxygen_add_docs()``. For example:
+
+  .. code-block:: cmake
+
+    set(DOXYGEN_GENERATE_HTML NO)
+    set(DOXYGEN_GENERATE_MAN YES)
+
+    doxygen_add_docs(
+        doxygen
+        ${PROJECT_SOURCE_DIR}
+        COMMENT "Generate man pages"
+    )
+
+A number of Doxygen config options accept lists of values, but Doxygen requires
+them to be separated by whitespace. CMake variables hold lists as a string with
+items separated by semi-colons, so a conversion needs to be performed. The
+``doxygen_add_docs()`` command specifically checks the following Doxygen config
+options and will convert their associated CMake variable's contents into the
+required form if set.
+
+::
+
+  ABBREVIATE_BRIEF
+  ALIASES
+  CITE_BIB_FILES
+  DIAFILE_DIRS
+  DOTFILE_DIRS
+  DOT_FONTPATH
+  ENABLED_SECTIONS
+  EXAMPLE_PATH
+  EXAMPLE_PATTERNS
+  EXCLUDE
+  EXCLUDE_PATTERNS
+  EXCLUDE_SYMBOLS
+  EXPAND_AS_DEFINED
+  EXTENSION_MAPPING
+  EXTRA_PACKAGES
+  EXTRA_SEARCH_MAPPINGS
+  FILE_PATTERNS
+  FILTER_PATTERNS
+  FILTER_SOURCE_PATTERNS
+  HTML_EXTRA_FILES
+  HTML_EXTRA_STYLESHEET
+  IGNORE_PREFIX
+  IMAGE_PATH
+  INCLUDE_FILE_PATTERNS
+  INCLUDE_PATH
+  INPUT
+  LATEX_EXTRA_FILES
+  LATEX_EXTRA_STYLESHEET
+  MATHJAX_EXTENSIONS
+  MSCFILE_DIRS
+  PLANTUML_INCLUDE_PATH
+  PREDEFINED
+  QHP_CUST_FILTER_ATTRS
+  QHP_SECT_FILTER_ATTRS
+  STRIP_FROM_INC_PATH
+  STRIP_FROM_PATH
+  TAGFILES
+  TCL_SUBST
+
+The following single value Doxygen options will be quoted automatically
+if they contain at least one space:
+
+::
+
+  CHM_FILE
+  DIA_PATH
+  DOCBOOK_OUTPUT
+  DOCSET_FEEDNAME
+  DOCSET_PUBLISHER_NAME
+  DOT_FONTNAME
+  DOT_PATH
+  EXTERNAL_SEARCH_ID
+  FILE_VERSION_FILTER
+  GENERATE_TAGFILE
+  HHC_LOCATION
+  HTML_FOOTER
+  HTML_HEADER
+  HTML_OUTPUT
+  HTML_STYLESHEET
+  INPUT_FILTER
+  LATEX_FOOTER
+  LATEX_HEADER
+  LATEX_OUTPUT
+  LAYOUT_FILE
+  MAN_OUTPUT
+  MAN_SUBDIR
+  MATHJAX_CODEFILE
+  MSCGEN_PATH
+  OUTPUT_DIRECTORY
+  PERL_PATH
+  PLANTUML_JAR_PATH
+  PROJECT_BRIEF
+  PROJECT_LOGO
+  PROJECT_NAME
+  QCH_FILE
+  QHG_LOCATION
+  QHP_CUST_FILTER_NAME
+  QHP_VIRTUAL_FOLDER
+  RTF_EXTENSIONS_FILE
+  RTF_OUTPUT
+  RTF_STYLESHEET_FILE
+  SEARCHDATA_FILE
+  USE_MDFILE_AS_MAINPAGE
+  WARN_FORMAT
+  WARN_LOGFILE
+  XML_OUTPUT
+
+There are situations where it may be undesirable for a particular config option
+to be automatically quoted by ``doxygen_add_docs()``, such as ``ALIASES`` which
+may need to include its own embedded quoting.  The ``DOXYGEN_VERBATIM_VARS``
+variable can be used to specify a list of Doxygen variables (including the
+leading ``DOXYGEN_`` prefix) which should not be quoted.  The project is then
+responsible for ensuring that those variables' values make sense when placed
+directly in the Doxygen input file.  In the case of list variables, list items
+are still separated by spaces, it is only the automatic quoting that is
+skipped.  For example, the following allows ``doxygen_add_docs()`` to apply
+quoting to ``DOXYGEN_PROJECT_BRIEF``, but not each item in the
+``DOXYGEN_ALIASES`` list (:ref:`bracket syntax <Bracket Argument>` can also
+be used to make working with embedded quotes easier):
+
+.. code-block:: cmake
+
+  set(DOXYGEN_PROJECT_BRIEF "String with spaces")
+  set(DOXYGEN_ALIASES
+      [[somealias="@some_command param"]]
+      "anotherAlias=@foobar"
+  )
+  set(DOXYGEN_VERBATIM_VARS DOXYGEN_ALIASES)
+
+The resultant ``Doxyfile`` will contain the following lines:
+
+.. code-block:: text
+
+  PROJECT_BRIEF = "String with spaces"
+  ALIASES       = somealias="@some_command param" anotherAlias=@foobar
+
+
+Deprecated Result Variables
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+For compatibility with previous versions of CMake, the following variables
+are also defined but they are deprecated and should no longer be used:
+
+.. variable:: DOXYGEN_EXECUTABLE
+
+  The path to the ``doxygen`` command. If projects need to refer to the
+  ``doxygen`` executable directly, they should use the ``Doxygen::doxygen``
+  import target instead.
+
+.. variable:: DOXYGEN_DOT_FOUND
+
+  True if the ``dot`` executable was found.
+
+.. variable:: DOXYGEN_DOT_EXECUTABLE
+
+  The path to the ``dot`` command. If projects need to refer to the ``dot``
+  executable directly, they should use the ``Doxygen::dot`` import target
+  instead.
+
+.. variable:: DOXYGEN_DOT_PATH
+
+  The path to the directory containing the ``dot`` executable as reported in
+  ``DOXYGEN_DOT_EXECUTABLE``. The path may have forward slashes even on Windows
+  and is not suitable for direct substitution into a ``Doxyfile.in`` template.
+  If you need this value, get the :prop_tgt:`IMPORTED_LOCATION` property of the
+  ``Doxygen::dot`` target and use :command:`get_filename_component` to extract
+  the directory part of that path. You may also want to consider using
+  :command:`file(TO_NATIVE_PATH)` to prepare the path for a Doxygen
+  configuration file.
+
+
+Deprecated Hint Variables
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. variable:: DOXYGEN_SKIP_DOT
+
+  This variable has no effect for the component form of ``find_package``.
+  In backward compatibility mode (i.e. without components list) it prevents
+  the finder module from searching for Graphviz's ``dot`` utility.
+
+#]=======================================================================]
+
+cmake_policy(PUSH)
+cmake_policy(SET CMP0057 NEW) # if IN_LIST
+
+# For backwards compatibility support
+if(Doxygen_FIND_QUIETLY)
+    set(DOXYGEN_FIND_QUIETLY TRUE)
+endif()
+
+# ===== Rationale for OS X AppBundle mods below =====
+#  With the OS X GUI version, Doxygen likes to be installed to /Applications
+#  and it contains the doxygen executable in the bundle. In the versions I've
+#  seen, it is located in Resources, but in general, more often binaries are
+#  located in MacOS.
+#
+#  NOTE: The official Doxygen.app distributed for OS X uses non-standard
+#  conventions. Instead of the command-line "doxygen" tool being placed in
+#  Doxygen.app/Contents/MacOS, "Doxywizard" is placed there instead and
+#  "doxygen" is placed in Contents/Resources.  This is most likely done
+#  so that something happens when people double-click on the Doxygen.app
+#  package. Unfortunately, CMake gets confused by this as when it sees the
+#  bundle it uses "Doxywizard" as the executable to use instead of
+#  "doxygen". Therefore to work-around this issue we temporarily disable
+#  the app-bundle feature, just for this CMake module:
+#
+if(APPLE)
+    # Save the old setting
+    set(TEMP_DOXYGEN_SAVE_CMAKE_FIND_APPBUNDLE ${CMAKE_FIND_APPBUNDLE})
+    # Disable the App-bundle detection feature
+    set(CMAKE_FIND_APPBUNDLE "NEVER")
+endif()
+# FYI:
+# In older versions of OS X Doxygen, dot was included with the Doxygen bundle,
+# but newer versions require you to download Graphviz.app which contains "dot"
+# or use something like homebrew.
+# ============== End OSX stuff ================
+
+#
+# Find Doxygen...
+#
+macro(_Doxygen_find_doxygen)
+    find_program(
+        DOXYGEN_EXECUTABLE
+        NAMES doxygen
+        PATHS
+            C:/Doxygen191/bin
+            "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\doxygen_is1;Inno Setup: App Path]/bin"
+            /Applications/Doxygen.app/Contents/Resources
+            /Applications/Doxygen.app/Contents/MacOS
+            /Applications/Utilities/Doxygen.app/Contents/Resources
+            /Applications/Utilities/Doxygen.app/Contents/MacOS
+        DOC "Doxygen documentation generation tool (http://www.doxygen.org)"
+    )
+    mark_as_advanced(DOXYGEN_EXECUTABLE)
+
+    if(DOXYGEN_EXECUTABLE)
+        execute_process(
+            COMMAND "${DOXYGEN_EXECUTABLE}" --version
+            OUTPUT_VARIABLE DOXYGEN_VERSION
+            OUTPUT_STRIP_TRAILING_WHITESPACE
+            RESULT_VARIABLE _Doxygen_version_result
+        )
+        if(_Doxygen_version_result)
+            message(WARNING "Unable to determine doxygen version: ${_Doxygen_version_result}")
+        endif()
+
+        # Create an imported target for Doxygen
+        if(NOT TARGET Doxygen::doxygen)
+            add_executable(Doxygen::doxygen IMPORTED GLOBAL)
+            set_target_properties(Doxygen::doxygen PROPERTIES
+                IMPORTED_LOCATION "${DOXYGEN_EXECUTABLE}"
+            )
+        endif()
+    endif()
+endmacro()
+
+#
+# Find Diagram Editor...
+#
+macro(_Doxygen_find_dia)
+    set(_x86 "(x86)")
+    find_program(
+        DOXYGEN_DIA_EXECUTABLE
+        NAMES dia
+        PATHS
+            "$ENV{ProgramFiles}/Dia"
+            "$ENV{ProgramFiles${_x86}}/Dia"
+        DOC "Diagram Editor tool for use with Doxygen"
+    )
+    mark_as_advanced(DOXYGEN_DIA_EXECUTABLE)
+
+    if(DOXYGEN_DIA_EXECUTABLE)
+        # The Doxyfile wants the path to the utility, not the entire path
+        # including file name
+        get_filename_component(DOXYGEN_DIA_PATH
+                              "${DOXYGEN_DIA_EXECUTABLE}"
+                              DIRECTORY)
+        if(WIN32)
+            file(TO_NATIVE_PATH "${DOXYGEN_DIA_PATH}" DOXYGEN_DIA_PATH)
+        endif()
+
+        # Create an imported target for component
+        if(NOT TARGET Doxygen::dia)
+            add_executable(Doxygen::dia IMPORTED GLOBAL)
+            set_target_properties(Doxygen::dia PROPERTIES
+                IMPORTED_LOCATION "${DOXYGEN_DIA_EXECUTABLE}"
+            )
+        endif()
+    endif()
+
+    unset(_x86)
+endmacro()
+
+#
+# Find Graphviz Dot...
+#
+macro(_Doxygen_find_dot)
+    if(WIN32)
+        set(_x86 "(x86)")
+        file(
+            GLOB _Doxygen_GRAPHVIZ_BIN_DIRS
+            "$ENV{ProgramFiles}/Graphviz*/bin"
+            "$ENV{ProgramFiles${_x86}}/Graphviz*/bin"
+        )
+        unset(_x86)
+    else()
+        set(_Doxygen_GRAPHVIZ_BIN_DIRS "")
+    endif()
+
+    find_program(
+        DOXYGEN_DOT_EXECUTABLE
+        NAMES dot
+        PATHS
+            ${_Doxygen_GRAPHVIZ_BIN_DIRS}
+            "$ENV{ProgramFiles}/ATT/Graphviz/bin"
+            "C:/Program Files/ATT/Graphviz/bin"
+            [HKEY_LOCAL_MACHINE\\SOFTWARE\\ATT\\Graphviz;InstallPath]/bin
+            /Applications/Graphviz.app/Contents/MacOS
+            /Applications/Utilities/Graphviz.app/Contents/MacOS
+            /Applications/Doxygen.app/Contents/Resources
+            /Applications/Doxygen.app/Contents/MacOS
+            /Applications/Utilities/Doxygen.app/Contents/Resources
+            /Applications/Utilities/Doxygen.app/Contents/MacOS
+        DOC "Dot tool for use with Doxygen"
+    )
+    mark_as_advanced(DOXYGEN_DOT_EXECUTABLE)
+
+    if(DOXYGEN_DOT_EXECUTABLE)
+        # The Doxyfile wants the path to the utility, not the entire path
+        # including file name
+        get_filename_component(DOXYGEN_DOT_PATH
+                               "${DOXYGEN_DOT_EXECUTABLE}"
+                               DIRECTORY)
+        if(WIN32)
+            file(TO_NATIVE_PATH "${DOXYGEN_DOT_PATH}" DOXYGEN_DOT_PATH)
+        endif()
+
+        # Create an imported target for component
+        if(NOT TARGET Doxygen::dot)
+            add_executable(Doxygen::dot IMPORTED GLOBAL)
+            set_target_properties(Doxygen::dot PROPERTIES
+                IMPORTED_LOCATION "${DOXYGEN_DOT_EXECUTABLE}"
+            )
+        endif()
+    endif()
+
+    unset(_Doxygen_GRAPHVIZ_BIN_DIRS)
+endmacro()
+
+#
+# Find Message Sequence Chart...
+#
+macro(_Doxygen_find_mscgen)
+    set(_x86 "(x86)")
+    find_program(
+        DOXYGEN_MSCGEN_EXECUTABLE
+        NAMES mscgen
+        PATHS
+            "$ENV{ProgramFiles}/Mscgen"
+            "$ENV{ProgramFiles${_x86}}/Mscgen"
+        DOC "Message sequence chart tool for use with Doxygen"
+    )
+    mark_as_advanced(DOXYGEN_MSCGEN_EXECUTABLE)
+
+    if(DOXYGEN_MSCGEN_EXECUTABLE)
+        # The Doxyfile wants the path to the utility, not the entire path
+        # including file name
+        get_filename_component(DOXYGEN_MSCGEN_PATH
+                               "${DOXYGEN_MSCGEN_EXECUTABLE}"
+                               DIRECTORY)
+        if(WIN32)
+            file(TO_NATIVE_PATH "${DOXYGEN_MSCGEN_PATH}" DOXYGEN_MSCGEN_PATH)
+        endif()
+
+        # Create an imported target for component
+        if(NOT TARGET Doxygen::mscgen)
+            add_executable(Doxygen::mscgen IMPORTED GLOBAL)
+            set_target_properties(Doxygen::mscgen PROPERTIES
+                IMPORTED_LOCATION "${DOXYGEN_MSCGEN_EXECUTABLE}"
+            )
+        endif()
+    endif()
+
+    unset(_x86)
+endmacro()
+
+# Make sure `doxygen` is one of the components to find
+set(_Doxygen_keep_backward_compat FALSE)
+if(NOT Doxygen_FIND_COMPONENTS)
+    # Search at least for `doxygen` executable
+    set(Doxygen_FIND_COMPONENTS doxygen)
+    # Preserve backward compatibility:
+    # search for `dot` also if `DOXYGEN_SKIP_DOT` is not explicitly disable this.
+    if(NOT DOXYGEN_SKIP_DOT)
+        list(APPEND Doxygen_FIND_COMPONENTS dot)
+    endif()
+    set(_Doxygen_keep_backward_compat TRUE)
+elseif(NOT doxygen IN_LIST Doxygen_FIND_COMPONENTS)
+    list(INSERT Doxygen_FIND_COMPONENTS 0 doxygen)
+endif()
+
+#
+# Find all requested components of Doxygen...
+#
+foreach(_comp IN LISTS Doxygen_FIND_COMPONENTS)
+    if(_comp STREQUAL "doxygen")
+        _Doxygen_find_doxygen()
+    elseif(_comp STREQUAL "dia")
+        _Doxygen_find_dia()
+    elseif(_comp STREQUAL "dot")
+        _Doxygen_find_dot()
+    elseif(_comp STREQUAL "mscgen")
+        _Doxygen_find_mscgen()
+    else()
+        message(WARNING "${_comp} is not a valid Doxygen component")
+        set(Doxygen_${_comp}_FOUND FALSE)
+        continue()
+    endif()
+
+    if(TARGET Doxygen::${_comp})
+        set(Doxygen_${_comp}_FOUND TRUE)
+    else()
+        set(Doxygen_${_comp}_FOUND FALSE)
+    endif()
+endforeach()
+unset(_comp)
+
+# Verify find results
+#include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(
+    Doxygen
+    REQUIRED_VARS DOXYGEN_EXECUTABLE
+    VERSION_VAR DOXYGEN_VERSION
+    HANDLE_COMPONENTS
+)
+
+#
+# Backwards compatibility...
+#
+if(APPLE)
+    # Restore the old app-bundle setting
+    set(CMAKE_FIND_APPBUNDLE ${TEMP_DOXYGEN_SAVE_CMAKE_FIND_APPBUNDLE})
+endif()
+
+# Maintain the _FOUND variables as "YES" or "NO" for backwards
+# compatibility. This allows people to substitute them directly into
+# Doxyfile with configure_file().
+if(DOXYGEN_FOUND)
+    set(DOXYGEN_FOUND "YES")
+else()
+    set(DOXYGEN_FOUND "NO")
+endif()
+if(_Doxygen_keep_backward_compat)
+    if(Doxygen_dot_FOUND)
+        set(DOXYGEN_DOT_FOUND "YES")
+    else()
+        set(DOXYGEN_DOT_FOUND "NO")
+    endif()
+
+    # For backwards compatibility support for even older CMake versions
+    set(DOXYGEN ${DOXYGEN_EXECUTABLE})
+    set(DOT ${DOXYGEN_DOT_EXECUTABLE})
+
+    # No need to keep any backward compatibility for `DOXYGEN_MSCGEN_XXX`
+    # and `DOXYGEN_DIA_XXX` since they were not supported before component
+    # support was added
+endif()
+unset(_Doxygen_keep_backward_compat)
+
+#
+# Allow full control of Doxygen from CMakeLists.txt
+#
+
+# Prepare a template Doxyfile and Doxygen's default values CMake file
+if(TARGET Doxygen::doxygen)
+    # If doxygen was found, use it to generate a minimal default Doxyfile.
+    # We will delete this file after we have finished using it below to
+    # generate the other files that doxygen_add_docs() will use.
+    set(_Doxygen_tpl "${CMAKE_BINARY_DIR}/CMakeDoxyfile.tpl")
+    execute_process(
+        COMMAND "${DOXYGEN_EXECUTABLE}" -s -g "${_Doxygen_tpl}"
+        OUTPUT_QUIET
+        RESULT_VARIABLE _Doxygen_tpl_result
+    )
+    if(_Doxygen_tpl_result)
+        message(FATAL_ERROR
+                "Unable to generate Doxyfile template: ${_Doxygen_tpl_result}")
+    elseif(NOT EXISTS "${_Doxygen_tpl}")
+        message(FATAL_ERROR
+                "Doxygen has failed to generate a Doxyfile template")
+    endif()
+
+    # Write a do-not-edit header to files we are going to generate...
+    set(_Doxygen_dne_header
+[[
+#
+# DO NOT EDIT! THIS FILE WAS GENERATED BY CMAKE!
+#
+
+]]
+    )
+    # We only need one copy of these across the whole build, since their
+    # content is only dependent on the version of Doxygen being used. Therefore
+    # we always put them at the top of the build tree so that they are in a
+    # predictable location.
+    set(_doxyfile_in       "${CMAKE_BINARY_DIR}/CMakeDoxyfile.in")
+    set(_doxyfile_defaults "${CMAKE_BINARY_DIR}/CMakeDoxygenDefaults.cmake")
+
+    file(WRITE "${_doxyfile_in}"       ${_Doxygen_dne_header})
+    file(WRITE "${_doxyfile_defaults}" ${_Doxygen_dne_header})
+
+    # Get strings containing a configuration key from the template Doxyfile
+    # we obtained from this version of Doxygen. Because some options are split
+    # across multiple lines by ending lines with backslashes, we cannot just
+    # use file(STRINGS...) with a REGEX. Instead, read lines without a REGEX
+    # so that file(STRINGS...) handles the trailing backslash as a line
+    # continuation. It stores multi-lines as lists, so we then have to replace
+    # the ";" list separator with backslashed newlines again so that we get the
+    # original content stored back as the value part.
+    file(STRINGS "${_Doxygen_tpl}" _file_lines)
+    unset(_Doxygen_tpl_params)
+    foreach(_line IN LISTS _file_lines)
+        if(_line MATCHES "([A-Z][A-Z0-9_]+)( *=)(.*)")
+            set(_key "${CMAKE_MATCH_1}")
+            set(_eql "${CMAKE_MATCH_2}")
+            set(_value "${CMAKE_MATCH_3}")
+            string(REPLACE "\\" "\\\\" _value "${_value}")
+            string(REPLACE ";" "\\\n" _value "${_value}")
+            list(APPEND _Doxygen_tpl_params "${_key}${_eql}${_value}")
+        endif()
+    endforeach()
+
+    # Build up a Doxyfile that provides @configVar@ substitutions for each
+    # Doxygen config option as well as a separate CMake script which provides
+    # the default value for each of those options if the project doesn't supply
+    # them. Each config option will support substitution of a CMake variable
+    # of the same name except with DOXYGEN_ prepended.
+    foreach(_Doxygen_param IN LISTS _Doxygen_tpl_params)
+        if(_Doxygen_param MATCHES "([A-Z][A-Z0-9_]+)( *)=( (.*))?")
+            # Ok, this is a config key with a value
+            if(CMAKE_MATCH_COUNT EQUAL 4)
+                file(APPEND "${_doxyfile_in}"
+                    "${CMAKE_MATCH_1}${CMAKE_MATCH_2}= @DOXYGEN_${CMAKE_MATCH_1}@\n")
+                # Remove the backslashes we had to preserve to handle newlines
+                string(REPLACE "\\\n" "\n" _value "${CMAKE_MATCH_4}")
+                file(APPEND "${_doxyfile_defaults}"
+"if(NOT DEFINED DOXYGEN_${CMAKE_MATCH_1})
+    set(DOXYGEN_${CMAKE_MATCH_1} ${_value})
+endif()
+")
+            # Ok, this is a config key with empty default value
+            elseif(CMAKE_MATCH_COUNT EQUAL 2)
+                file(APPEND "${_doxyfile_in}"
+                    "${CMAKE_MATCH_1}${CMAKE_MATCH_2}= @DOXYGEN_${CMAKE_MATCH_1}@\n")
+            else()
+                message(AUTHOR_WARNING
+"Unexpected line format! Code review required!\nFault line: ${_Doxygen_param}")
+            endif()
+        else()
+            message(AUTHOR_WARNING
+"Unexpected line format! Code review required!\nFault line: ${_Doxygen_param}")
+        endif()
+    endforeach()
+
+    # Ok, dumped defaults are not needed anymore...
+    file(REMOVE "${_Doxygen_tpl}")
+
+    unset(_Doxygen_param)
+    unset(_Doxygen_tpl_params)
+    unset(_Doxygen_dne_header)
+    unset(_Doxygen_tpl)
+
+endif()
+
+function(doxygen_quote_value VARIABLE)
+    # Quote a value of the given variable if:
+    # - VARIABLE parameter was really given
+    # - the variable it names is defined and is not present in the list
+    #   specified by DOXYGEN_VERBATIM_VARS (if set)
+    # - the value of the named variable isn't already quoted
+    # - the value has spaces
+    if(VARIABLE AND DEFINED ${VARIABLE} AND
+       NOT ${VARIABLE} MATCHES "^\".* .*\"$" AND ${VARIABLE} MATCHES " " AND
+       NOT (DEFINED DOXYGEN_VERBATIM_VARS AND
+            "${VARIABLE}" IN_LIST DOXYGEN_VERBATIM_VARS))
+        set(${VARIABLE} "\"${${VARIABLE}}\"" PARENT_SCOPE)
+    endif()
+endfunction()
+
+function(doxygen_list_to_quoted_strings LIST_VARIABLE)
+    if(LIST_VARIABLE AND DEFINED ${LIST_VARIABLE})
+        unset(_inputs)
+        unset(_sep)
+        unset(_verbatim)
+        # Have to test if list items should be treated as verbatim here
+        # because we lose the variable name when we pass just one list item
+        # to doxygen_quote_value() below
+        if(DEFINED DOXYGEN_VERBATIM_VARS AND
+           "${LIST_VARIABLE}" IN_LIST DOXYGEN_VERBATIM_VARS)
+            set(_verbatim True)
+        endif()
+        foreach(_in IN LISTS ${LIST_VARIABLE})
+            if(NOT _verbatim)
+                doxygen_quote_value(_in)
+            endif()
+            string(APPEND _inputs "${_sep}${_in}")
+            set(_sep " ")
+        endforeach()
+        set(${LIST_VARIABLE} "${_inputs}" PARENT_SCOPE)
+    endif()
+endfunction()
+
+function(doxygen_add_docs targetName)
+    set(_options ALL USE_STAMP_FILE)
+    set(_one_value_args WORKING_DIRECTORY COMMENT)
+    set(_multi_value_args)
+    cmake_parse_arguments(_args
+                          "${_options}"
+                          "${_one_value_args}"
+                          "${_multi_value_args}"
+                          ${ARGN})
+
+    if(NOT _args_COMMENT)
+        set(_args_COMMENT "Generate API documentation for ${targetName}")
+    endif()
+
+    if(NOT _args_WORKING_DIRECTORY)
+        set(_args_WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}")
+    endif()
+
+    if(DEFINED DOXYGEN_INPUT)
+        message(WARNING
+"DOXYGEN_INPUT is set but it will be ignored. Pass the files and directories \
+directly to the doxygen_add_docs() command instead.")
+    endif()
+    set(DOXYGEN_INPUT ${_args_UNPARSED_ARGUMENTS})
+
+    if(NOT TARGET Doxygen::doxygen)
+        message(FATAL_ERROR "Doxygen was not found, needed by \
+doxygen_add_docs() for target ${targetName}")
+    endif()
+
+    # If not already defined, set some relevant defaults based on the
+    # assumption that the documentation is for the whole project. Details
+    # specified in the project() command will be used to populate a number of
+    # these defaults.
+
+    if(NOT DEFINED DOXYGEN_PROJECT_NAME)
+        # The PROJECT_NAME tag is a single word (or a sequence of words
+        # surrounded by double-quotes, unless you are using Doxywizard) that
+        # should identify the project for which the documentation is generated.
+        # This name is used in the title of most generated pages and in a few
+        # other places. The default value is: My Project.
+        set(DOXYGEN_PROJECT_NAME ${PROJECT_NAME})
+    endif()
+
+    if(NOT DEFINED DOXYGEN_PROJECT_NUMBER)
+        # The PROJECT_NUMBER tag can be used to enter a project or revision
+        # number. This could be handy for archiving the generated documentation
+        # or if some version control system is used.
+        set(DOXYGEN_PROJECT_NUMBER ${PROJECT_VERSION})
+    endif()
+
+    if(NOT DEFINED DOXYGEN_PROJECT_BRIEF)
+        # Using the PROJECT_BRIEF tag one can provide an optional one line
+        # description for a project that appears at the top of each page and
+        # should give viewer a quick idea about the purpose of the project.
+        # Keep the description short.
+        set(DOXYGEN_PROJECT_BRIEF "${PROJECT_DESCRIPTION}")
+    endif()
+
+    if(NOT DEFINED DOXYGEN_RECURSIVE)
+        # The RECURSIVE tag can be used to specify whether or not
+        # subdirectories should be searched for input files as well. CMake
+        # projects generally evolve to span multiple directories, so it makes
+        # more sense for this to be on by default. Doxygen's default value
+        # has this setting turned off, so we override it.
+        set(DOXYGEN_RECURSIVE YES)
+    endif()
+
+    if(NOT DEFINED DOXYGEN_OUTPUT_DIRECTORY)
+        # The OUTPUT_DIRECTORY tag is used to specify the (relative or
+        # absolute) path into which the generated documentation will be
+        # written. If a relative path is used, Doxygen will interpret it as
+        # being relative to the location where doxygen was started, but we need
+        # to run Doxygen in the source tree so that relative input paths work
+        # intuitively. Therefore, we ensure that the output directory is always
+        # an absolute path and if the project provided a relative path, we
+        # treat it as relative to the current BINARY directory so that output
+        # is not generated inside the source tree.
+        set(DOXYGEN_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
+    elseif(NOT IS_ABSOLUTE "${DOXYGEN_OUTPUT_DIRECTORY}")
+        get_filename_component(DOXYGEN_OUTPUT_DIRECTORY
+                               "${DOXYGEN_OUTPUT_DIRECTORY}"
+                               ABSOLUTE
+                               BASE_DIR "${CMAKE_CURRENT_BINARY_DIR}")
+    endif()
+
+    if(NOT DEFINED DOXYGEN_HAVE_DOT)
+        # If you set the HAVE_DOT tag to YES then doxygen will assume the dot
+        # tool is available from the path. This tool is part of Graphviz (see:
+        # http://www.graphviz.org/), a graph visualization toolkit from AT&T
+        # and Lucent Bell Labs. The other options in this section have no
+        # effect if this option is set to NO.
+        # Doxygen's default value is: NO.
+        if(Doxygen_dot_FOUND)
+          set(DOXYGEN_HAVE_DOT "YES")
+        else()
+          set(DOXYGEN_HAVE_DOT "NO")
+        endif()
+    endif()
+
+    if(NOT DEFINED DOXYGEN_DOT_MULTI_TARGETS)
+        # Set the DOT_MULTI_TARGETS tag to YES to allow dot to generate
+        # multiple output files in one run (i.e. multiple -o and -T options on
+        # the command line). This makes dot run faster, but since only newer
+        # versions of dot (>1.8.10) support this, Doxygen disables this feature
+        # by default.
+        # This tag requires that the tag HAVE_DOT is set to YES.
+        set(DOXYGEN_DOT_MULTI_TARGETS YES)
+    endif()
+
+    if(NOT DEFINED DOXYGEN_GENERATE_LATEX)
+        # If the GENERATE_LATEX tag is set to YES, doxygen will generate LaTeX
+        # output. We only want the HTML output enabled by default, so we turn
+        # this off if the project hasn't specified it.
+        set(DOXYGEN_GENERATE_LATEX NO)
+    endif()
+
+    if(NOT DEFINED DOXYGEN_WARN_FORMAT)
+        if(CMAKE_VS_MSBUILD_COMMAND OR CMAKE_VS_DEVENV_COMMAND)
+            # The WARN_FORMAT tag determines the format of the warning messages
+            # that doxygen can produce. The string should contain the $file,
+            # $line and $text tags, which will be replaced by the file and line
+            # number from which the warning originated and the warning text.
+            # Optionally, the format may contain $version, which will be
+            # replaced by the version of the file (if it could be obtained via
+            # FILE_VERSION_FILTER).
+            # Doxygen's default value is: $file:$line: $text
+            set(DOXYGEN_WARN_FORMAT "$file($line) : $text ")
+        endif()
+    endif()
+
+    if(DEFINED DOXYGEN_WARN_LOGFILE AND NOT IS_ABSOLUTE "${DOXYGEN_WARN_LOGFILE}")
+        # The WARN_LOGFILE tag can be used to specify a file to which warning and error
+        # messages should be written. If left blank the output is written to standard
+        # error (stderr).
+        get_filename_component(DOXYGEN_WARN_LOGFILE
+                               "${DOXYGEN_WARN_LOGFILE}"
+                               ABSOLUTE
+                               BASE_DIR "${CMAKE_CURRENT_BINARY_DIR}")
+    endif()
+
+    # Any files from the INPUT that match any of the EXCLUDE_PATTERNS will be
+    # excluded from the set of input files. We provide some additional patterns
+    # to prevent commonly unwanted things from CMake builds being pulled in.
+    #
+    # Note that the wildcards are matched against the file with absolute path,
+    # so to exclude all test directories for example use the pattern */test/*
+    list(
+        APPEND
+        DOXYGEN_EXCLUDE_PATTERNS
+        "*/.git/*"
+        "*/.svn/*"
+        "*/.hg/*"
+        "*/CMakeFiles/*"
+        "*/_CPack_Packages/*"
+        "DartConfiguration.tcl"
+        "CMakeLists.txt"
+        "CMakeCache.txt"
+    )
+
+    # Now bring in Doxgen's defaults for those things the project has not
+    # already set and we have not provided above
+    include("${CMAKE_BINARY_DIR}/CMakeDoxygenDefaults.cmake" OPTIONAL)
+
+    # Cleanup built HTMLs on "make clean"
+    # TODO Any other dirs?
+    if(DOXYGEN_GENERATE_HTML)
+        if(IS_ABSOLUTE "${DOXYGEN_HTML_OUTPUT}")
+            set(_args_clean_html_dir "${DOXYGEN_HTML_OUTPUT}")
+        else()
+            set(_args_clean_html_dir
+                "${DOXYGEN_OUTPUT_DIRECTORY}/${DOXYGEN_HTML_OUTPUT}")
+        endif()
+        set_property(DIRECTORY APPEND PROPERTY
+            ADDITIONAL_CLEAN_FILES "${_args_clean_html_dir}")
+    endif()
+
+    # Build up a list of files we can identify from the inputs so we can list
+    # them as DEPENDS and SOURCES in the custom command/target (the latter
+    # makes them display in IDEs). This must be done before we transform the
+    # various DOXYGEN_... variables below because we need to process
+    # DOXYGEN_INPUT as a list first.
+    unset(_sources)
+    foreach(_item IN LISTS DOXYGEN_INPUT)
+        get_filename_component(_abs_item "${_item}" ABSOLUTE
+                               BASE_DIR "${_args_WORKING_DIRECTORY}")
+        get_source_file_property(_isGenerated "${_abs_item}" GENERATED)
+        if(_isGenerated OR
+           (EXISTS "${_abs_item}" AND
+            NOT IS_DIRECTORY "${_abs_item}" AND
+            NOT IS_SYMLINK "${_abs_item}"))
+            list(APPEND _sources "${_abs_item}")
+        elseif(_args_USE_STAMP_FILE)
+            message(FATAL_ERROR "Source does not exist or is not a file:\n"
+                "    ${_abs_item}\n"
+                "Only existing files may be specified when the "
+                "USE_STAMP_FILE option is given.")
+        endif()
+    endforeach()
+
+    # Transform known list type options into space separated strings.
+    set(_doxygen_list_options
+        ABBREVIATE_BRIEF
+        ALIASES
+        CITE_BIB_FILES
+        DIAFILE_DIRS
+        DOTFILE_DIRS
+        DOT_FONTPATH
+        ENABLED_SECTIONS
+        EXAMPLE_PATH
+        EXAMPLE_PATTERNS
+        EXCLUDE
+        EXCLUDE_PATTERNS
+        EXCLUDE_SYMBOLS
+        EXPAND_AS_DEFINED
+        EXTENSION_MAPPING
+        EXTRA_PACKAGES
+        EXTRA_SEARCH_MAPPINGS
+        FILE_PATTERNS
+        FILTER_PATTERNS
+        FILTER_SOURCE_PATTERNS
+        HTML_EXTRA_FILES
+        HTML_EXTRA_STYLESHEET
+        IGNORE_PREFIX
+        IMAGE_PATH
+        INCLUDE_FILE_PATTERNS
+        INCLUDE_PATH
+        INPUT
+        LATEX_EXTRA_FILES
+        LATEX_EXTRA_STYLESHEET
+        MATHJAX_EXTENSIONS
+        MSCFILE_DIRS
+        PLANTUML_INCLUDE_PATH
+        PREDEFINED
+        QHP_CUST_FILTER_ATTRS
+        QHP_SECT_FILTER_ATTRS
+        STRIP_FROM_INC_PATH
+        STRIP_FROM_PATH
+        TAGFILES
+        TCL_SUBST
+    )
+    foreach(_item IN LISTS _doxygen_list_options)
+        doxygen_list_to_quoted_strings(DOXYGEN_${_item})
+    endforeach()
+
+    # Transform known single value variables which may contain spaces, such as
+    # paths or description strings.
+    set(_doxygen_quoted_options
+        CHM_FILE
+        DIA_PATH
+        DOCBOOK_OUTPUT
+        DOCSET_FEEDNAME
+        DOCSET_PUBLISHER_NAME
+        DOT_FONTNAME
+        DOT_PATH
+        EXTERNAL_SEARCH_ID
+        FILE_VERSION_FILTER
+        GENERATE_TAGFILE
+        HHC_LOCATION
+        HTML_FOOTER
+        HTML_HEADER
+        HTML_OUTPUT
+        HTML_STYLESHEET
+        INPUT_FILTER
+        LATEX_FOOTER
+        LATEX_HEADER
+        LATEX_OUTPUT
+        LAYOUT_FILE
+        MAN_OUTPUT
+        MAN_SUBDIR
+        MATHJAX_CODEFILE
+        MSCGEN_PATH
+        OUTPUT_DIRECTORY
+        PERL_PATH
+        PLANTUML_JAR_PATH
+        PROJECT_BRIEF
+        PROJECT_LOGO
+        PROJECT_NAME
+        QCH_FILE
+        QHG_LOCATION
+        QHP_CUST_FILTER_NAME
+        QHP_VIRTUAL_FOLDER
+        RTF_EXTENSIONS_FILE
+        RTF_OUTPUT
+        RTF_STYLESHEET_FILE
+        SEARCHDATA_FILE
+        USE_MDFILE_AS_MAINPAGE
+        WARN_FORMAT
+        WARN_LOGFILE
+        XML_OUTPUT
+    )
+
+    # Store the unmodified value of DOXYGEN_OUTPUT_DIRECTORY prior to invoking
+    # doxygen_quote_value() below. This will mutate the string specifically for
+    # consumption by Doxygen's config file, which we do not want when we use it
+    # later in the custom target's commands.
+    set( _original_doxygen_output_dir ${DOXYGEN_OUTPUT_DIRECTORY} )
+
+    foreach(_item IN LISTS _doxygen_quoted_options)
+        doxygen_quote_value(DOXYGEN_${_item})
+    endforeach()
+
+    # Prepare doxygen configuration file
+    set(_doxyfile_template "${CMAKE_BINARY_DIR}/CMakeDoxyfile.in")
+    set(_target_doxyfile "${CMAKE_CURRENT_BINARY_DIR}/Doxyfile.${targetName}")
+    configure_file("${_doxyfile_template}" "${_target_doxyfile}")
+
+    unset(_all)
+    if(${_args_ALL})
+        set(_all ALL)
+    endif()
+
+    # Only create the stamp file if asked to. If we don't create it,
+    # the target will always be considered out-of-date.
+    if(_args_USE_STAMP_FILE)
+        set(__stamp_file "${CMAKE_CURRENT_BINARY_DIR}/${targetName}.stamp")
+        add_custom_command(
+            VERBATIM
+            OUTPUT ${__stamp_file}
+            COMMAND ${CMAKE_COMMAND} -E make_directory ${_original_doxygen_output_dir}
+            COMMAND "${DOXYGEN_EXECUTABLE}" "${_target_doxyfile}"
+            COMMAND ${CMAKE_COMMAND} -E touch ${__stamp_file}
+            WORKING_DIRECTORY "${_args_WORKING_DIRECTORY}"
+            DEPENDS "${_target_doxyfile}" ${_sources}
+            COMMENT "${_args_COMMENT}"
+        )
+        add_custom_target(${targetName} ${_all}
+            DEPENDS ${__stamp_file}
+            SOURCES ${_sources}
+        )
+        unset(__stamp_file)
+    else()
+        add_custom_target( ${targetName} ${_all} VERBATIM
+            COMMAND ${CMAKE_COMMAND} -E make_directory ${_original_doxygen_output_dir}
+            COMMAND "${DOXYGEN_EXECUTABLE}" "${_target_doxyfile}"
+            WORKING_DIRECTORY "${_args_WORKING_DIRECTORY}"
+            DEPENDS "${_target_doxyfile}" ${_sources}
+            COMMENT "${_args_COMMENT}"
+            SOURCES ${_sources}
+        )
+    endif()
+
+endfunction()
+
+cmake_policy(POP)