added dev/MinGfx/

7 files changed, 1979 insertions, 0 deletions

diff --git a/dev/MinGfx/cmake/AutoBuild.cmake b/dev/MinGfx/cmake/AutoBuild.cmake
new file mode 100644
index 0000000..977c91c
--- /dev/null
+++ b/dev/MinGfx/cmake/AutoBuild.cmake
@@ -0,0 +1,584 @@
+# Author: Daniel F. Keefe
+# Copyright 2017,2018, Daniel F. Keefe and Regents of the University of Minnesota
+# All Rights Reserved.
+
+
+# OVERVIEW / INTENT:  AutoBuild is a series of CMake macros and functions for working with sub-projects that are dependencies of a main project.  We assume that both the main project and dependencies each build with CMake already.  AutoBuild manages the process of checking to see if the dependencies are already available, installed on the system.  If not, AutoBuild will automatically download, build, and install the dependencies for you as part of the CMake Configure process.
+
+# WHY IS THIS NEEDED / USEFUL?:  AutoBuild is similar in spirit to CMake's ExternalProject_add() command.  In fact, AutoBuild uses that command internally.  However, there is a key difference between AutoBuild and ExternalProject_add().  With ExternalProject_add() there is a chicken-and-the-egg problem.  ExternalProject_add() doesn't download and build the external project until after CMake has finished running and you are building your actual code using Unix Makefiles, Visual Studio, or Xcode.  This means the dependency does not exist on disk until CMake has finished running, and, thus, there is no way to use CMake's find_package() routines to find the dependency.  You can still make your project link with the dependency, but you have to hardcode paths to tell CMake where it will exist after it is built rather than find it already installed on the system.  If you want to only build the dependency if it is not already found on the system, then this means you need to maintain two ways of linking with the dependency in your CMakeLists.txt, using one approach when the dependency is found already installed and using another approach (hardcoded paths with ExternalProject_add()) when it is not found.  The hardcoded paths can get a bit complex when working with cross-platform code, and this is precisely what CMake's find_package() is supposed to handle, so it is a bit annoying that it cannot be used in this case.
+
+# HOW IT WORKS:  AutoBuild takes a different approach where the goal is for our project's CMakeLists.txt file to always use the same approach to link with a dependency.  If the dependency is found on the system, then we go ahead and link with it right away.  If it is not found, then rather than scheduling it to be built as part of the build process for our own project, we "pause" our build for a moment to download, build, and install the dependency.  Then, once the dependency has been installed, we try again to find it using find_package(), which should always succeed since we just did the install, and continue on building our program.
+
+# LIMITATIONS: Handling dependencies is a hard problem, and this "AutoBuild" strategy is not without its own limitations.  For example, a complication arises when using the CMake GUI.  When using the CMake GUI, users expect to be able to set the CMAKE_INSTALL_PREFIX interactively after pressing Configure once to bring up all the available options.  So, there is a problem if we build and install dependency projects during this first run of CMake Configure -- the user will not yet have had a chance to set CMAKE_INSTALL_PREFIX before the dependency projects are installed, and they may be installed to an undesirable location.  AutoBuild addresses this by running a status check at the end of the CMake Configure step.  The first time the status check detects that a dependency project should be "auto-built", it prints an informative error message, reminding the user to set CMAKE_INSTALL_PREFIX and then re-run CMake Configure to actually do the download, build, and install steps for each dependency.  This seems to be a good match for CMake's GUI mode because it also allows the user to check other related settings (e.g., turning off autobuild for specific projects, forcing autobuild even if the dependency is found on the system, setting the directory to use for downloading projects).
+
+# RUNNING FROM A SCRIPT:  When running from the command line or a script, the error-the-first-time-an-autobuild-is-scheduled behavior described above is typically not desired.  In this case, users should already be setting CMAKE_INSTALL_PREFIX and any other desired CMake flags on the command line so it is fine to run the autobuilds immediately.  To do this, simply run cmake with the following command line argument: -DAUTOBUILD_EXECUTE_NOW=ON
+
+
+# USAGE: WHAT TO ADD TO YOUR CMAKELISTS.TXT FILE TO USE AUTOBUILD:
+
+# Edit 1: Add two calls to your main CMakeLists.txt:
+
+# 1a. Near the top of the file include AutoBuild and call init, like so:
+#    include(AutoBuild)
+#    AutoBuild_init()
+
+# 1b. At the end of the file call:
+#    AutoBuild_check_status()
+
+
+# Edit 2: For each target you wish to link with an external dependency, add a use_package() call right after you
+#         define the target with add_library() or add_executable.  If the dependency you wish to link with uses
+#         modern CMake Config Packages, then the generic AutoBuild_use_package() call is all that is needed.
+#         For example, to link my-program with the MinVR library, add the following to the CMakeLists.txt file
+#         where you define the my-program target with add_executable:
+
+#    add_execuatable(my-program ${SOURCEFILES})
+#    AutoBuild_use_package(MinVR . my-program PUBLIC MinVR::MinVR
+#        DOWNLOAD_ARGS  GIT_REPOSITORY https://github.com/MinVR/MinVR.git GIT_TAG beta
+#    )
+
+#        Since CMake Config Packages are relatively new and very complex, so not every package provides one
+#        (or a correct one).  In these cases, the generic AutoBuild_use_package() will not work, and we have
+#        to write a version of that is specific to the project we wish to add as a dependency.  For example,
+#        in order to link with GLFW, which does not provide a ConfigGLFW.cmake file, we must write a
+#        GLFW-specific version of AutoBuild_use_package() and then use it like so:
+
+#     include(AutoBuildGLFW)
+#     AutoBuild_use_package_GLFW(my-program PUBLIC)
+
+#        GLFW is one of the first examples in this style, so it is included in the AutoBuild repo.  If the
+#        repo does not already include an AutoBuild<package-name>.cmake script, then copy an existing
+#        example, modify it to work for the package of interest, and once it is working, push it back to
+#        the AutoBuild repo so others can benefit as well.
+
+
+
+
+
+
+
+# Usage:
+# AutoBuild_init()
+# Call this one time in your main CMakeLists.txt script somewhere near the beginning of the file.
+macro(AutoBuild_init)
+    message(STATUS "AutoBuild: Initializing.")
+
+    option(AUTOBUILD_DEPENDENCIES "This is a global option that turns on/off the AutoBuild functionality.  It is also possible to turn on/off autobuilding for specific packages via variables of the form AUTOBUILD_PACKAGE_<NAME>." ON)
+
+    set(AUTOBUILD_DOWNLOAD_DIR "${CMAKE_CURRENT_SOURCE_DIR}/external" CACHE STRING "Location for external project sources downloaded by AutoBuild." )
+endmacro()
+
+
+
+
+
+
+# Usage:
+# AutoBuild_check_status()
+# Call this one time in your main CMakeLists.txt script somewhere near the end of the file.
+macro(AutoBuild_check_status)
+    message(STATUS "AutoBuild: Checking status...")
+
+    # Report status to the user, and if we detected dependencies to autobuild, stop with a
+    # cmake error to give the user a chance to adjust config options, such as the
+    # CMAKE_INSTALL_PREFIX and overriding AUTOBUILD_<PROJNAME> on a case-by-case basis if
+    # needed.  Assuming all looks good, we will then download, build, and install each
+    # dependency that we need the next time CMake Configure is run.
+
+    set(PREFIX "AUTOBUILD_PACKAGE_")
+    get_cmake_property(ALLVARS VARIABLES)
+    string(REGEX MATCHALL "(^|;)${PREFIX}[A-Za-z0-9_]*" MATCHED_VARS "${ALLVARS}")
+
+    if (NOT "${MATCHED_VARS}" STREQUAL "")
+        message(STATUS "AutoBuild: Status check for each dependency linked using AutoBuild:")
+
+        set(RERUN_CONFIGURE "FALSE")
+
+        foreach (VARIABLE ${MATCHED_VARS})
+            #message(STATUS "${VARIABLE}=${${VARIABLE}}")
+
+            string(REPLACE ${PREFIX} "" PACKAGE_NAME ${VARIABLE})
+            string(TOUPPER ${PACKAGE_NAME} PACKAGE_NAME_UPPER)
+
+            if ("${${PACKAGE_NAME}_AUTOBUILT}")
+                set(STATUS_STR "Now installed to CMAKE_INSTALL_PREFIX (${CMAKE_INSTALL_PREFIX}).")
+                set(AUTOBUILD_PACKAGE_${PACKAGE_NAME_UPPER} OFF CACHE BOOL "If on, the AutoBuild CMake plugin will download, build, and install ${PACKAGE_NAME} to CMAKE_INSTALL_PREFIX the next time that CMake Configure is run." FORCE)
+            elseif("${${VARIABLE}}")
+                set(STATUS_STR "Set to auto-build next time you run CMake Configure.")
+                set(RERUN_CONFIGURE "TRUE")
+            else()
+                set(STATUS_STR "Autobuild off (either found on the system or manually turned off).")
+            endif()
+
+            message(STATUS "AutoBuild: Dependency = ${PACKAGE_NAME};  Status = ${STATUS_STR}")
+
+        endforeach()
+
+        # Error out if any packages are set to autobuild but have not yet been built
+        if ("${RERUN_CONFIGURE}")
+
+            # This flag confirms that the user has had a chance to see any new AutoBuild config
+            # options and we can now proceed on the next run of CMake Configure to do the auto
+            # download, build, and install steps.
+            set(AUTOBUILD_EXECUTE_NOW "ON" CACHE BOOL "If on, the AutoBuild download, build, install steps will run the next time CMake Configure is run.")
+            mark_as_advanced(AUTOBUILD_EXECUTE_NOW)
+
+            message(SEND_ERROR "AutoBuild: One or more packages are setup to be downloaded, built, and installed with AutoBuild the next time you run CMake Configure.  Check now to make sure that your CMAKE_INSTALL_PREFIX points to the place where you want these dependencies installed.  Also, check variables of the form AUTOBUILD_PACKAGE_* to make sure the packages you want to build are ON and the ones you do not are OFF.  When all looks good, run Configure again to perform the download, build, and install steps.  This message will be shown only once -- the first time your project schedules a dependency to be autobuilt.")
+
+        endif()
+    endif()
+
+    message(STATUS "AutoBuild: Completed status check.")
+endmacro()
+
+
+
+
+
+
+
+# Usage:
+# AutoBuild_use_package(
+#    # This 1st argument is required, it is the name of the project/package you wish to use.  The project should
+#    # provide a <package-name>Config.cmake file for CMake to find.
+#    MinVR
+#
+#    # The 2nd argument is required and it is the relative path from the root of the external project's source
+#    # tree to a CMakeLists.txt file that can be used to build the project.
+#    .
+#
+#    # The 3rd argument is required.  It is the name of the target you wish to link this dependency to.
+#    my-program
+#
+#    # The 4th argument is required.  It impacts how dependencies are propogated through CMake.  You can treat
+#    # this dependency as an INTERFACE, PUBLIC, or PRIVATE.  See  the following URL for details:
+#    # https://cmake.org/cmake/help/latest/command/target_include_directories.html
+#    PUBLIC
+#
+#    # The 5th argument is required.  It is the name of the imported target(s) provided in the projects CMake
+#    # Config Package.  By convention, these typically start with the project name and then ::, like a namespace.
+#    MinVR::MinVR
+#
+#    # The remaining arguments are optional and are used to provide more specific instructions on the find_package,
+#    # download, build, and install steps.  List additional flags for these steps after the keywords:
+#    # FIND_PACKAGE_ARGS, DOWNLOAD_ARGS, and/or BUILD_AND_INSTALL_ARGS.  For example:
+#
+#    DOWNLOAD_ARGS  GIT_REPOSITORY https://github.com/MinVR/MinVR.git GIT_TAG beta
+# )
+#
+macro(AutoBuild_use_package PACKAGE_NAME RELPATH_TO_CMAKELISTS YOUR_TARGET INTERFACE_PUBLIC_OR_PRIVATE IMPORTED_TARGETS)
+
+    set(OPTIONS)
+    set(ONE_VALUE_ARGS)
+    set(MULTI_VALUE_ARGS FIND_PACKAGE_ARGS DOWNLOAD_ARGS BUILD_AND_INSTALL_ARGS)
+    cmake_parse_arguments(EXTRA "${OPTIONS}" "${ONE_VALUE_ARGS}" "${MULTI_VALUE_ARGS}" ${ARGN})
+
+    string(TOUPPER ${PACKAGE_NAME} PACKAGE_NAME_UPPER)
+
+    AutoBuild_find_package_config_mode(${PACKAGE_NAME} ${EXTRA_FIND_PACKAGE_ARGS})
+
+
+
+    if ("${AUTOBUILD_PACKAGE_${PACKAGE_NAME_UPPER}}")
+        if ("${AUTOBUILD_EXECUTE_NOW}")
+            message(STATUS "AutoBuild: Starting download, build, install sequence for ${PACKAGE_NAME}.")
+
+            if (EXISTS "${AUTOBUILD_DOWNLOAD_DIR}/${PACKAGE_NAME}/${RELPATH_TO_CMAKELISTS}/CmakeLists.txt")
+                message(STATUS "AutoBuild: External project source found at ${AUTOBUILD_DOWNLOAD_DIR}/${PACKAGE_NAME}. Skipping download step.")
+            else()
+                AutoBuild_download_project(${PACKAGE_NAME} ${EXTRA_DOWNLOAD_ARGS})
+            endif()
+
+            AutoBuild_build_and_install_project(${PACKAGE_NAME} ${RELPATH_TO_CMAKELISTS} ${EXTRA_BUILD_AND_INSTALL_ARGS})
+
+            AutoBuild_find_built_package_config_mode(${PACKAGE_NAME} CONFIG ${EXTRA_FIND_PACKAGE_ARGS})
+
+            set(${PACKAGE_NAME_UPPER}_AUTOBUILT "TRUE" CACHE BOOL "Confirms that package ${PACKAGE_NAME} was successfully built by the AutoBuild system.")
+            mark_as_advanced(${PACKAGE_NAME}_AUTOBUILT)
+
+        else()
+            message(STATUS "AutoBuild: Scheduled to build ${PACKAGE_NAME} the next time CMake Configure is run.")
+        endif()
+    endif()
+
+
+    # If we've found the package, either directly on the system or after autobuilding, then link with it
+    if ("${${PACKAGE_NAME}_FOUND}" OR "${${PACKAGE_NAME_UPPER}_FOUND}")
+        message(STATUS "Linking target ${YOUR_TARGET} with ${INTERFACE_PUBLIC_OR_PRIVATE} dependency ${PACKAGE_NAME}.")
+
+        target_link_libraries(${YOUR_TARGET} ${INTERFACE_PUBLIC_OR_PRIVATE} ${IMPORTED_TARGETS})
+
+        target_compile_definitions(${YOUR_TARGET} ${INTERFACE_PUBLIC_OR_PRIVATE} -DUSE_${PACKAGE_NAME_UPPER})
+    endif()
+
+endmacro()
+
+
+
+
+
+
+
+
+
+
+
+# ------ Implementation Details Below this Line -- External Users Should Not Need To Call Anything Below -------
+
+
+macro(AutoBuild_find_package_config_mode PACKAGE_NAME)
+    # Users can pass in extra arguments to the find_package command if needed.
+    set(EXTRA_MACRO_ARGS ${ARGN})
+
+    string(TOUPPER ${PACKAGE_NAME} PACKAGE_NAME_UPPER)
+
+
+    # Force CMake to find the package again -- need for the case where the package exists on the system
+    # but we want to force building and installing it.  after the install, we need to clear these flags
+    # so that find_package will find the newlyl installed version.
+    unset(${PACKAGE_NAME}_DIR CACHE)
+    unset(${PACKAGE_NAME_UPPER}_DIR CACHE)
+    unset(${PACKAGE_NAME}_FOUND CACHE)
+    unset(${PACKAGE_NAME_UPPER}_FOUND CACHE)
+
+    message(STATUS "AutoBuild: Searching for package ${PACKAGE_NAME} using cmake's find_package() config mode...")
+
+    if (NOT AUTOBUILD_DEPENDENCIES)
+
+        message(STATUS "AutoBuild: AUTOBUILD_DEPENDENCIES is OFF, using default CMake find_package() behavior.")
+        find_package(${PACKAGE_NAME} CONFIG ${EXTRA_MACRO_ARGS})
+
+    else()
+
+        # Try first to find the package within the current CMAKE_INSTALL_PREFIX.  In the case when multiple
+        # versions of a library are installed on the same system, this makes sure that we will find a version
+        # that was previously built using AutoBuild first.
+        find_package(${PACKAGE_NAME} CONFIG PATHS ${CMAKE_INSTALL_PREFIX} NO_DEFAULT_PATH ${EXTRA_MACRO_ARGS})
+
+        # Try again with the normal version of find_package(), which will search a variety of places on
+        # the system, see details here:  https://cmake.org/cmake/help/latest/command/find_package.html
+        if (NOT ("${${PACKAGE_NAME}_FOUND}" OR "${${PACKAGE_NAME_UPPER}_FOUND}"))
+            find_package(${PACKAGE_NAME} CONFIG ${EXTRA_MACRO_ARGS})
+        endif()
+
+
+        if ("${${PACKAGE_NAME}_FOUND}" OR "${${PACKAGE_NAME_UPPER}_FOUND}")
+            set(FOUND_AT_DIR "${${PACKAGE_NAME}_DIR}")
+            if ("${FOUND_AT_DIR}" STREQUAL "")
+                set(FOUND_AT_DIR "${${PACKAGE_NAME_UPPER}_DIR}")
+            endif()
+            if ("${FOUND_AT_DIR}" STREQUAL "")
+                set(FOUND_AT_DIR "${${PACKAGE_NAME_UPPER}_INCLUDE_DIR}")
+            endif()
+            if ("${FOUND_AT_DIR}" STREQUAL "")
+                set(FOUND_AT_DIR "${${PACKAGE_NAME_UPPER}_INCLUDE_DIRS}")
+            endif()
+            message(STATUS "AutoBuild: OK - Found ${PACKAGE_NAME} at ${FOUND_AT_DIR}.")
+            # Found the package on the system, so there is no need to autobuild it, but we still add
+            # an option (defaulting to OFF) so that users can "force" building their own version of
+            # the dependency if they wish.
+            option(AUTOBUILD_PACKAGE_${PACKAGE_NAME_UPPER} "If on, the AutoBuild CMake plugin will download, build, and install ${PACKAGE_NAME} to CMAKE_INSTALL_PREFIX the next time that CMake Configure is run." OFF)
+        else()
+            message(STATUS "AutoBuild: Could not find ${PACKAGE_NAME}, setting AUTOBUILD_PACKAGE_${PACKAGE_NAME_UPPER}=ON.")
+            # If the package is still not found, then we will need to autobuild it, add the option with a default of ON
+            option(AUTOBUILD_PACKAGE_${PACKAGE_NAME_UPPER} "If on, the AutoBuild CMake plugin will download, build, and install ${PACKAGE_NAME} to CMAKE_INSTALL_PREFIX the next time that CMake Configure is run." ON)
+        endif()
+
+    endif()
+endmacro()
+
+
+
+macro(AutoBuild_find_built_package_config_mode PACKAGE_NAME)
+    # Users can pass in extra arguments to the find_package command if needed.
+    set(EXTRA_MACRO_ARGS ${ARGN})
+
+    string(TOUPPER ${PACKAGE_NAME} PACKAGE_NAME_UPPER)
+
+    # Force CMake to find the package again -- need for the case where the package exists on the system
+    # but we want to force building and installing it.  after the install, we need to clear these flags
+    # so that find_package will find the newlyl installed version.
+    unset(${PACKAGE_NAME}_DIR CACHE)
+    unset(${PACKAGE_NAME_UPPER}_DIR CACHE)
+    unset(${PACKAGE_NAME}_FOUND CACHE)
+    unset(${PACKAGE_NAME_UPPER}_FOUND CACHE)
+
+    message(STATUS "AutoBuild: Searching again (after autobuilding) for package ${PACKAGE_NAME} using config mode...")
+
+    # Try first to find the package within the current CMAKE_INSTALL_PREFIX.  In the case when multiple
+    # versions of a library are installed on the same system, this makes sure that we will find a version
+    # that was previously built using AutoBuild first.
+    find_package(${PACKAGE_NAME} PATHS ${CMAKE_INSTALL_PREFIX} NO_DEFAULT_PATH ${EXTRA_MACRO_ARGS} QUIET)
+
+    # Try again with the normal version of find_package(), which will search a variety of places on
+    # the system, see details here:  https://cmake.org/cmake/help/latest/command/find_package.html
+    if (NOT ("${${PACKAGE_NAME}_FOUND}" OR "${${PACKAGE_NAME_UPPER}_FOUND}"))
+        find_package(${PACKAGE_NAME} ${EXTRA_MACRO_ARGS})
+    endif()
+
+
+    if ("${${PACKAGE_NAME}_FOUND}" OR "${${PACKAGE_NAME_UPPER}_FOUND}")
+        set(FOUND_AT_DIR "${${PACKAGE_NAME}_DIR}")
+        if ("${FOUND_AT_DIR}" STREQUAL "")
+            set(FOUND_AT_DIR "${${PACKAGE_NAME_UPPER}_DIR}")
+        endif()
+        if ("${FOUND_AT_DIR}" STREQUAL "")
+            set(FOUND_AT_DIR "${${PACKAGE_NAME_UPPER}_INCLUDE_DIR}")
+        endif()
+        if ("${FOUND_AT_DIR}" STREQUAL "")
+            set(FOUND_AT_DIR "${${PACKAGE_NAME_UPPER}_INCLUDE_DIRS}")
+        endif()
+        message(STATUS "AutoBuild: OK - Found ${PACKAGE_NAME} at ${FOUND_AT_DIR}.")
+    else()
+        message(FATAL_ERROR "AutoBuild: Just completed a download, build, and install sequence for package ${PACKAGE_NAME}, and it should now be installed at the prefix ${CMAKE_INSTALL_PREFIX}, but cmake is still unable to find it with find_package().")
+    endif()
+endmacro()
+
+
+
+macro(AutoBuild_find_package_module_mode PACKAGE_NAME)
+    # Users can pass in extra arguments to the find_package command if needed.
+    set(EXTRA_MACRO_ARGS ${ARGN})
+
+    string(TOUPPER ${PACKAGE_NAME} PACKAGE_NAME_UPPER)
+
+
+    # Force CMake to find the package again -- need for the case where the package exists on the system
+    # but we want to force building and installing it.  after the install, we need to clear these flags
+    # so that find_package will find the newlyl installed version.
+    unset(${PACKAGE_NAME}_DIR CACHE)
+    unset(${PACKAGE_NAME_UPPER}_DIR CACHE)
+    unset(${PACKAGE_NAME}_FOUND CACHE)
+    unset(${PACKAGE_NAME_UPPER}_FOUND CACHE)
+
+    message(STATUS "AutoBuild: Searching for package ${PACKAGE_NAME} using cmake's find_package() module mode...")
+
+    if (NOT AUTOBUILD_DEPENDENCIES)
+
+        message(STATUS "AutoBuild: AUTOBUILD_DEPENDENCIES is OFF, using default CMake find_package() behavior.")
+        find_package(${PACKAGE_NAME} MODULE ${EXTRA_MACRO_ARGS})
+
+    else()
+
+        # AutoBuild allows users to force building a dependency even if it is already found installed on the
+        # system.  To make this work, any Find*.cmake scripts that are used with AutoBuild must look first
+        # for the library under ${CMAKE_INSTALL_PREFIX}.  This makes it so that preference is given to
+        # libraries just built and installed there with AutoBuild.
+        find_package(${PACKAGE_NAME} MODULE ${EXTRA_MACRO_ARGS})
+
+        if ("${${PACKAGE_NAME}_FOUND}" OR "${${PACKAGE_NAME_UPPER}_FOUND}")
+            set(FOUND_AT_DIR "${${PACKAGE_NAME}_DIR}")
+            if ("${FOUND_AT_DIR}" STREQUAL "")
+                set(FOUND_AT_DIR "${${PACKAGE_NAME_UPPER}_DIR}")
+            endif()
+            if ("${FOUND_AT_DIR}" STREQUAL "")
+                set(FOUND_AT_DIR "${${PACKAGE_NAME_UPPER}_INCLUDE_DIR}")
+            endif()
+            if ("${FOUND_AT_DIR}" STREQUAL "")
+                set(FOUND_AT_DIR "${${PACKAGE_NAME_UPPER}_INCLUDE_DIRS}")
+            endif()
+            message(STATUS "AutoBuild: OK - Found ${PACKAGE_NAME} at ${FOUND_AT_DIR}.")
+            # Found the package on the system, so there is no need to autobuild it, but we still add
+            # an option (defaulting to OFF) so that users can "force" building their own version of
+            # the dependency if they wish.
+            option(AUTOBUILD_PACKAGE_${PACKAGE_NAME_UPPER} "If on, the AutoBuild CMake plugin will download, build, and install ${PACKAGE_NAME} to CMAKE_INSTALL_PREFIX the next time that CMake Configure is run." OFF)
+        else()
+            message(STATUS "AutoBuild: Could not find ${PACKAGE_NAME}, setting AUTOBUILD_PACKAGE_${PACKAGE_NAME_UPPER}=ON.")
+            # If the package is still not found, then we will need to autobuild it, add the option with a default of ON
+            option(AUTOBUILD_PACKAGE_${PACKAGE_NAME_UPPER} "If on, the AutoBuild CMake plugin will download, build, and install ${PACKAGE_NAME} to CMAKE_INSTALL_PREFIX the next time that CMake Configure is run." ON)
+        endif()
+
+    endif()
+endmacro()
+
+
+
+macro(AutoBuild_find_built_package_module_mode PACKAGE_NAME)
+    # Users can pass in extra arguments to the find_package command if needed.
+    set(EXTRA_MACRO_ARGS ${ARGN})
+
+    string(TOUPPER ${PACKAGE_NAME} PACKAGE_NAME_UPPER)
+
+    # Force CMake to find the package again -- need for the case where the package exists on the system
+    # but we want to force building and installing it.  after the install, we need to clear these flags
+    # so that find_package will find the newlyl installed version.
+    unset(${PACKAGE_NAME}_DIR CACHE)
+    unset(${PACKAGE_NAME_UPPER}_DIR CACHE)
+    unset(${PACKAGE_NAME}_FOUND CACHE)
+    unset(${PACKAGE_NAME_UPPER}_FOUND CACHE)
+
+    message(STATUS "AutoBuild: Searching again (after autobuilding) for package ${PACKAGE_NAME} using module mode...")
+
+    # AutoBuild allows users to force building a dependency even if it is already found installed on the
+    # system.  To make this work, any Find*.cmake scripts that are used with AutoBuild must look first
+    # for the library under ${CMAKE_INSTALL_PREFIX}.  This makes it so that preference is given to
+    # libraries just built and installed there with AutoBuild.
+    find_package(${PACKAGE_NAME} MODULE ${EXTRA_MACRO_ARGS})
+
+    if ("${${PACKAGE_NAME}_FOUND}" OR "${${PACKAGE_NAME_UPPER}_FOUND}")
+        set(FOUND_AT_DIR "${${PACKAGE_NAME}_DIR}")
+        if ("${FOUND_AT_DIR}" STREQUAL "")
+            set(FOUND_AT_DIR "${${PACKAGE_NAME_UPPER}_DIR}")
+        endif()
+		if ("${FOUND_AT_DIR}" STREQUAL "")
+            set(FOUND_AT_DIR "${${PACKAGE_NAME_UPPER}_INCLUDE_DIR}")
+        endif()
+		if ("${FOUND_AT_DIR}" STREQUAL "")
+            set(FOUND_AT_DIR "${${PACKAGE_NAME_UPPER}_INCLUDE_DIRS}")
+        endif()
+        message(STATUS "AutoBuild: OK - Found ${PACKAGE_NAME} at ${FOUND_AT_DIR}.")
+    else()
+        message(FATAL_ERROR "AutoBuild: Just completed a download, build, and install sequence for package ${PACKAGE_NAME}, and it should now be installed at the prefix ${CMAKE_INSTALL_PREFIX}, but cmake is still unable to find it with find_package().")
+    endif()
+endmacro()
+
+
+
+# Usage:
+# AutoBuild_download_project(
+#     # This first argument is the name of the project to download.  It is required:
+#     glm
+#
+#     # Additional arguments specify how to download the project using GIT, SVN, CVS, or URL.
+#     # These can be any of the arguments used for the downloading step of the cmake builtin
+#     # ExternalProject_Add command.
+#     GIT_REPOSITORY "https://github.com/g-truc/glm.git"
+#     GIT_TAG master
+#     etc..
+# )
+function(AutoBuild_download_project EXT_PROJECT_NAME)
+
+    big_message("AUTOBUILD: BEGIN EXTERNAL PROJECT DOWNLOAD (${EXT_PROJECT_NAME}).")
+
+    message(STATUS "AutoBuild: Creating a download helper project for ${EXT_PROJECT_NAME}.")
+
+    set(DOWNLOAD_OPTIONS ${ARGN})
+    string (REGEX REPLACE "(^|[^\\\\]);" "\\1 " DOWNLOAD_OPTIONS "${DOWNLOAD_OPTIONS}")
+
+    file(MAKE_DIRECTORY ${AUTOBUILD_DOWNLOAD_DIR}/${EXT_PROJECT_NAME})
+
+    # Write the CMakeLists.txt.in file to disk
+    set(DLHELPER_FILE_TEXT "\n \
+        # This is a helper cmake project -- the only thing this project does is download \n \
+        # the external project.  So, the configure, build, install, and test commands for \n \
+        # ExternalProject_Add() are intentionally set as NOPs.  \n \
+        \n \
+        cmake_minimum_required (VERSION 3.9) \n \
+        \n \
+        project(@EXT_PROJECT_NAME@-download) \n \
+        \n \
+        include(ExternalProject) \n \
+        ExternalProject_Add( \n \
+            @EXT_PROJECT_NAME@ \n \
+            SOURCE_DIR \"@AUTOBUILD_DOWNLOAD_DIR@/@EXT_PROJECT_NAME@\" \n \
+            BINARY_DIR \"@AUTOBUILD_DOWNLOAD_DIR@/@EXT_PROJECT_NAME@-download-helper\" \n \
+            @DOWNLOAD_OPTIONS@ \n \
+            CONFIGURE_COMMAND \"\" \n \
+            BUILD_COMMAND \"\" \n \
+            INSTALL_COMMAND \"\" \n \
+            TEST_COMMAND \"\" \n \
+            LOG_DOWNLOAD ON \n \
+            GIT_PROGRESS 1 \n \
+        ) \n \
+    ")
+
+    file(WRITE ${AUTOBUILD_DOWNLOAD_DIR}/${EXT_PROJECT_NAME}-download-helper/CMakeLists.txt.in ${DLHELPER_FILE_TEXT})
+
+    configure_file(
+        ${AUTOBUILD_DOWNLOAD_DIR}/${EXT_PROJECT_NAME}-download-helper/CMakeLists.txt.in
+        ${AUTOBUILD_DOWNLOAD_DIR}/${EXT_PROJECT_NAME}-download-helper/CMakeLists.txt
+    )
+
+    message(STATUS "AutoBuild: Generating build files for the ${EXT_PROJECT_NAME} download helper project.")
+    message(STATUS "  Using working dir: ${AUTOBUILD_DOWNLOAD_DIR}/${EXT_PROJECT_NAME}-download-helper")
+
+    execute_process(COMMAND "${CMAKE_COMMAND}" -G "${CMAKE_GENERATOR}" . WORKING_DIRECTORY "${AUTOBUILD_DOWNLOAD_DIR}/${EXT_PROJECT_NAME}-download-helper" OUTPUT_VARIABLE stdout ERROR_VARIABLE stderr RESULT_VARIABLE exitcode)
+    if(NOT "${exitcode}" STREQUAL "0")
+        message(FATAL_ERROR "AutoBuild: Error while creating download helper project: ${stdout} ${stderr}")
+    endif()
+
+    message(STATUS "AutoBuild: Building the ${EXT_PROJECT_NAME} download helper project.  (This actually performs the download and may take some time...)")
+    execute_process(COMMAND "${CMAKE_COMMAND}" --build . WORKING_DIRECTORY "${AUTOBUILD_DOWNLOAD_DIR}/${EXT_PROJECT_NAME}-download-helper" OUTPUT_VARIABLE stdout ERROR_VARIABLE stderr RESULT_VARIABLE exitcode)
+    if(NOT "${exitcode}" STREQUAL "0")
+        message(SEND_ERROR "AutoBuild: Error running download helper project: ${stdout} ${stderr}")
+    endif()
+
+    message(STATUS "AutoBuild: Completed download of external project ${EXT_PROJECT_NAME}.")
+
+endfunction()
+
+
+# Usage:
+# AutoBuild_build_and_install_project(
+#     # This first argument is the name of the external project to download.  It is required:
+#     VRPN
+#     # This second argument is the relative path from ${EXTERNAL_DIR_NAME}/projectname/ to the project's
+#     # main CMakeLists.txt file:
+#     src
+#
+#     # Additional arguments are passed on as options to the cmake build file generator
+#     -DVRPN_BUILD_DIRECTSHOW_VIDEO_SERVER=OFF
+#     -DVRPN_BUILD_HID_GUI=OFF
+#     etc..
+# )
+function(AutoBuild_build_and_install_project EXT_PROJECT_NAME RELPATH_TO_CMAKELISTS)
+
+    big_message("AUTOBUILD: BEGIN EXTERNAL PROJECT BUILD AND INSTALL (${EXT_PROJECT_NAME}).")
+    AutoBuild_configure_project( ${EXT_PROJECT_NAME} ${RELPATH_TO_CMAKELISTS} ${ARGN})
+    AutoBuild_build_and_install_debug( ${EXT_PROJECT_NAME} ${RELPATH_TO_CMAKELISTS} ${ARGN})
+    AutoBuild_build_and_install_release( ${EXT_PROJECT_NAME} ${RELPATH_TO_CMAKELISTS} ${ARGN})
+    message(STATUS "AutoBuild: Completed external build of ${EXT_PROJECT_NAME}.\n\n")
+endfunction()
+
+
+function(AutoBuild_configure_project EXT_PROJECT_NAME RELPATH_TO_CMAKELISTS)
+    # any extra args to the function are interpreted as arguments for the cmake config process
+    set(CMAKE_CONFIG_OPTIONS ${ARGN})
+
+    # always set the install prefix to be the same as for the main project
+    list(APPEND CMAKE_CONFIG_OPTIONS -DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX})
+
+    set(SRC_DIR "${AUTOBUILD_DOWNLOAD_DIR}/${EXT_PROJECT_NAME}/${RELPATH_TO_CMAKELISTS}")
+    set(BUILD_DIR "${CMAKE_BINARY_DIR}/external/${EXT_PROJECT_NAME}")
+
+    file(MAKE_DIRECTORY ${BUILD_DIR})
+
+    message(STATUS "AutoBuild: Generating build files for external project ${EXT_PROJECT_NAME}.")
+    message(STATUS "  Using source dir: ${SRC_DIR}")
+    message(STATUS "  Using build dir: ${BUILD_DIR}")
+    message(STATUS "  Config options: ${CMAKE_CONFIG_OPTIONS}")
+
+    execute_process(COMMAND "${CMAKE_COMMAND}" -G "${CMAKE_GENERATOR}" ${SRC_DIR} ${CMAKE_CONFIG_OPTIONS} WORKING_DIRECTORY ${BUILD_DIR} OUTPUT_VARIABLE stdout ERROR_VARIABLE stderr RESULT_VARIABLE exitcode)
+    if(NOT "${exitcode}" STREQUAL "0")
+        message(FATAL_ERROR "AutoBuild: Error generating build files for external project: ${stdout} ${stderr}")
+    endif()
+endfunction()
+
+
+function(AutoBuild_build_and_install_debug EXT_PROJECT_NAME RELPATH_TO_CMAKELISTS)
+    message(STATUS "AutoBuild: Building external project ${EXT_PROJECT_NAME} (Configuration = Debug).  (This may take some time...)")
+    set(BUILD_DIR "${CMAKE_BINARY_DIR}/external/${EXT_PROJECT_NAME}")
+    execute_process(COMMAND "${CMAKE_COMMAND}" --build ${BUILD_DIR} --config Debug --target install OUTPUT_VARIABLE stdout ERROR_VARIABLE stderr RESULT_VARIABLE exitcode)
+    if(NOT "${exitcode}" STREQUAL "0")
+        message(FATAL_ERROR "AutoBuild: Error building Debug configuration for external project: ${stdout} ${stderr}")
+    endif()
+endfunction()
+
+
+function(AutoBuild_build_and_install_release EXT_PROJECT_NAME RELPATH_TO_CMAKELISTS)
+    message(STATUS "AutoBuild: Building external project ${EXT_PROJECT_NAME} (Configuration = Release).  (This may take some time...)")
+    set(BUILD_DIR "${CMAKE_BINARY_DIR}/external/${EXT_PROJECT_NAME}")
+    execute_process(COMMAND "${CMAKE_COMMAND}" --build ${BUILD_DIR} --config Release --target install OUTPUT_VARIABLE stdout ERROR_VARIABLE stderr RESULT_VARIABLE exitcode)
+    if(NOT "${exitcode}" STREQUAL "0")
+        message(FATAL_ERROR "AutoBuild: Error building Release configuration for external project: ${stdout} ${stderr}")
+    endif()
+endfunction()
+
+
+macro(big_message TITLE)
+  string(TOUPPER ${TITLE} TITLE)
+  message(STATUS "\n\n==== ${TITLE} ====")
+endmacro()
+
+
+
diff --git a/dev/MinGfx/cmake/AutoBuildNanoGUI.cmake b/dev/MinGfx/cmake/AutoBuildNanoGUI.cmake
new file mode 100644
index 0000000..4c4008f
--- /dev/null
+++ b/dev/MinGfx/cmake/AutoBuildNanoGUI.cmake
@@ -0,0 +1,96 @@
+# Author: Daniel F. Keefe
+# Copyright 2017,2018, Daniel F. Keefe and Regents of the University of Minnesota
+# All Rights Reserved.
+
+include(AutoBuild)
+
+
+# Usage:
+# AutoBuild_use_package_NanoGUI(
+#    # The 1st argument is required.  It is the name of the target you wish to link this dependency to.
+#    my-program 
+#
+#    # The 2nd argument is required.  It impacts how dependencies are propogated through CMake.  You can treat
+#    # this dependency as an INTERFACE, PUBLIC, or PRIVATE.  See CMake's docs on Imported Targets for details.
+#    PUBLIC 
+# )
+#
+macro(AutoBuild_use_package_NanoGUI YOUR_TARGET INTERFACE_PUBLIC_OR_PRIVATE)
+    set(PACKAGE_NAME "NanoGUI")
+    string(TOUPPER ${PACKAGE_NAME} PACKAGE_NAME_UPPER)
+
+    AutoBuild_find_package_module_mode(${PACKAGE_NAME})
+
+    if ("${AUTOBUILD_PACKAGE_${PACKAGE_NAME_UPPER}}")
+        if ("${AUTOBUILD_EXECUTE_NOW}")
+
+            message(STATUS "AutoBuild: Beginning download, build, install sequence.")
+
+           if (EXISTS "${AUTOBUILD_DOWNLOAD_DIR}/${PACKAGE_NAME}/${RELPATH_TO_CMAKELISTS}/CmakeLists.txt")
+                message(STATUS "AutoBuild: External project source found at ${AUTOBUILD_DOWNLOAD_DIR}/${PACKAGE_NAME}. Skipping download step.")
+            else()
+                AutoBuild_download_project( 
+                    ${PACKAGE_NAME}
+                    GIT_REPOSITORY https://github.com/wjakob/nanogui.git
+                )
+            endif()
+
+            AutoBuild_build_and_install_project(
+                ${PACKAGE_NAME}
+                .
+                -DNANOGUI_BUILD_PYTHON=OFF
+                -DCMAKE_DEBUG_POSTFIX=d
+            )
+
+
+            # NanoGUI's install doesn't seem to install its dependencies, so do it manually here.
+            file(INSTALL "${AUTOBUILD_DOWNLOAD_DIR}/NanoGUI/ext/eigen/Eigen" DESTINATION "${CMAKE_INSTALL_PREFIX}/include")
+
+            file(INSTALL "${AUTOBUILD_DOWNLOAD_DIR}/NanoGUI/ext/glfw/include/GLFW" DESTINATION "${CMAKE_INSTALL_PREFIX}/include"    
+                 FILES_MATCHING PATTERN "glfw3.h" PATTERN "glfw3native.h")
+
+            file(INSTALL "${AUTOBUILD_DOWNLOAD_DIR}/NanoGUI/ext/nanovg/src/fontstash.h" DESTINATION "${CMAKE_INSTALL_PREFIX}/include/nanovg")
+            file(INSTALL "${AUTOBUILD_DOWNLOAD_DIR}/NanoGUI/ext/nanovg/src/nanovg.h" DESTINATION "${CMAKE_INSTALL_PREFIX}/include/nanovg")
+            file(INSTALL "${AUTOBUILD_DOWNLOAD_DIR}/NanoGUI/ext/nanovg/src/nanovg_gl.h" DESTINATION "${CMAKE_INSTALL_PREFIX}/include/nanovg")
+            file(INSTALL "${AUTOBUILD_DOWNLOAD_DIR}/NanoGUI/ext/nanovg/src/nanovg_gl_utils.h" DESTINATION "${CMAKE_INSTALL_PREFIX}/include/nanovg")
+            file(INSTALL "${AUTOBUILD_DOWNLOAD_DIR}/NanoGUI/ext/nanovg/src/stb_image.h" DESTINATION "${CMAKE_INSTALL_PREFIX}/include/nanovg")
+            file(INSTALL "${AUTOBUILD_DOWNLOAD_DIR}/NanoGUI/ext/nanovg/src/stb_truetype.h" DESTINATION "${CMAKE_INSTALL_PREFIX}/include/nanovg")
+
+            if (WIN32)
+                file(INSTALL "${AUTOBUILD_DOWNLOAD_DIR}/NanoGUI/ext/glad/include/glad" DESTINATION "${CMAKE_INSTALL_PREFIX}/include")
+                file(INSTALL "${AUTOBUILD_DOWNLOAD_DIR}/NanoGUI/ext/glad/include/KHR" DESTINATION "${CMAKE_INSTALL_PREFIX}/include")
+
+                # And, the don't even install the .dll on Windows!  Come on nanogui guys, get your act together!
+                file(INSTALL "${CMAKE_BINARY_DIR}/external/NanoGUI/Release/nanogui.dll" DESTINATION "${CMAKE_INSTALL_PREFIX}/bin")
+                file(INSTALL "${CMAKE_BINARY_DIR}/external/NanoGUI/Debug/nanoguid.dll" DESTINATION "${CMAKE_INSTALL_PREFIX}/bin")
+            endif()
+
+
+            AutoBuild_find_built_package_module_mode(${PACKAGE_NAME})
+
+            set(${PACKAGE_NAME_UPPER}_AUTOBUILT "TRUE" CACHE BOOL "Confirms that package ${PACKAGE_NAME} was successfully built by the AutoBuild system.")
+            mark_as_advanced(${PACKAGE_NAME}_AUTOBUILT)
+
+        else()
+            message(STATUS "AutoBuild: Scheduled to build ${PACKAGE_NAME} the next time CMake Configure is run.")
+        endif()
+    endif()
+
+
+    # If we've found the package, either directly on the system or after autobuilding, then link with it
+    if ("${${PACKAGE_NAME}_FOUND}" OR "${${PACKAGE_NAME_UPPER}_FOUND}")
+        message(STATUS "Linking target ${YOUR_TARGET} with ${INTERFACE_PUBLIC_OR_PRIVATE} dependency ${PACKAGE_NAME}.")
+
+        target_link_libraries(${YOUR_TARGET} ${INTERFACE_PUBLIC_OR_PRIVATE} ${NANOGUI_LIBRARIES})
+        target_include_directories(${YOUR_TARGET} ${INTERFACE_PUBLIC_OR_PRIVATE} ${NANOGUI_INCLUDE_DIRS})
+
+        target_compile_definitions(${YOUR_TARGET} ${INTERFACE_PUBLIC_OR_PRIVATE} -DUSE_${PACKAGE_NAME})
+
+        if (WIN32)
+            target_compile_definitions(${YOUR_TARGET} ${INTERFACE_PUBLIC_OR_PRIVATE} -DNANOGUI_GLAD -DGLAD_GLAPI_EXPORT)
+        endif()
+
+    endif()
+
+endmacro()
+
diff --git a/dev/MinGfx/cmake/AutoBuildOpenGL.cmake b/dev/MinGfx/cmake/AutoBuildOpenGL.cmake
new file mode 100644
index 0000000..c74b2b8
--- /dev/null
+++ b/dev/MinGfx/cmake/AutoBuildOpenGL.cmake
@@ -0,0 +1,47 @@
+# Author: Daniel F. Keefe
+# Copyright 2017,2018, Daniel F. Keefe and Regents of the University of Minnesota
+# All Rights Reserved.
+
+
+# Usage:
+# AutoBuild_use_package_OpenGL(
+#    # The 1st argument is required.  It is the name of the target you wish to link this dependency to.
+#    my-program 
+#
+#    # The 2nd argument is required.  It impacts how dependencies are propogated through CMake.  You can treat
+#    # this dependency as an INTERFACE, PUBLIC, or PRIVATE.  See the following URL for details:
+#    # https://cmake.org/cmake/help/latest/command/target_include_directories.html
+#    PUBLIC 
+# )
+#
+macro(AutoBuild_use_package_OpenGL YOUR_TARGET INTERFACE_PUBLIC_OR_PRIVATE)
+
+    message(STATUS "AutoBuild: Searching for package OpenGL...")
+
+	# Check to see if the library is already installed on the system    
+    # CMake ships with FindOpenGL.cmake and in CMake 3.9+ it defines
+    # the imported targets OpenGL::GL and OpenGL::GLU.  Using these is
+    # now the preferred way to link with OpenGL and all of its dependencies.
+	# See https://cmake.org/cmake/help/v3.9/module/FindOpenGL.html
+	find_package(OpenGL)
+
+	if (NOT ${OPENGL_FOUND})
+	    message(FATAL_ERROR "AutoBuild: OpenGL was not found on the system.  AutoBuild can auto-download 
+        and build many dependencies for you, but not OpenGL. It should come pre-installed on your system.")
+	endif()
+
+    message(STATUS "AutoBuild: Ok. Found OpenGL.")
+    message(STATUS "  OpenGL headers: ${OPENGL_INCLUDE_DIR}")
+    message(STATUS "  OpenGL libs: ${OPENGL_LIBRARIES}")
+
+    message(STATUS "Linking target ${YOUR_TARGET} with ${INTERFACE_PUBLIC_OR_PRIVATE} dependency OpenGL::GL.")
+    target_link_libraries(${YOUR_TARGET} ${INTERFACE_PUBLIC_OR_PRIVATE} OpenGL::GL)
+
+    if (${OPENGL_GLU_FOUND})
+        message(STATUS "Linking target ${YOUR_TARGET} with ${INTERFACE_PUBLIC_OR_PRIVATE} dependency OpenGL::GLU.")
+        target_link_libraries(${YOUR_TARGET} ${INTERFACE_PUBLIC_OR_PRIVATE} OpenGL::GLU)
+    endif()
+
+	target_compile_definitions(${YOUR_TARGET} ${INTERFACE_PUBLIC_OR_PRIVATE} -DUSE_OPENGL)
+
+endmacro()
diff --git a/dev/MinGfx/cmake/MessageMacros.cmake b/dev/MinGfx/cmake/MessageMacros.cmake
new file mode 100644
index 0000000..4628e5c
--- /dev/null
+++ b/dev/MinGfx/cmake/MessageMacros.cmake
@@ -0,0 +1,17 @@
+# This file is part of the MinVR cmake build system.  
+# See the main MinVR/CMakeLists.txt file for authors, copyright, and license info.
+
+
+macro(h1 TITLE)
+  string(TOUPPER ${TITLE} TITLE)
+  message(STATUS "\n\n==== ${TITLE} ====")
+endmacro()
+
+macro(h2 TITLE)
+  message(STATUS "\n* ${TITLE}")
+endmacro()
+
+macro(h3 TITLE)
+  message(STATUS "- ${TITLE}")
+endmacro()
+
diff --git a/dev/MinGfx/cmake/MinGfxConfig.cmake.in b/dev/MinGfx/cmake/MinGfxConfig.cmake.in
new file mode 100644
index 0000000..8a7b703
--- /dev/null
+++ b/dev/MinGfx/cmake/MinGfxConfig.cmake.in
@@ -0,0 +1,7 @@
+# To use the MinGfx library in your cmake project, add the following to your CMakeLists.txt:
+#    find_package(MinGfx REQUIRED)
+#    ... then, after add_executable(${PROJECT_NAME}) or add_library(${PROJECT_NAME})
+#    target_link_libraries(${PROJECT_NAME} PUBLIC MinGfx)
+
+
+include("${CMAKE_CURRENT_LIST_DIR}/MinGfxTargets.cmake")
diff --git a/dev/MinGfx/cmake/Modules/FindDoxygen.cmake b/dev/MinGfx/cmake/Modules/FindDoxygen.cmake
new file mode 100644
index 0000000..c0e865f
--- /dev/null
+++ b/dev/MinGfx/cmake/Modules/FindDoxygen.cmake
@@ -0,0 +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)
diff --git a/dev/MinGfx/cmake/Modules/FindNanoGUI.cmake b/dev/MinGfx/cmake/Modules/FindNanoGUI.cmake
new file mode 100644
index 0000000..1c27135
--- /dev/null
+++ b/dev/MinGfx/cmake/Modules/FindNanoGUI.cmake
@@ -0,0 +1,62 @@
+
+
+find_path(NANOGUI_INCLUDE_DIR 
+    nanogui/nanogui.h
+  HINTS 
+    ${CMAKE_INSTALL_PREFIX}/include 
+    ${CMAKE_INSTALL_PREFIX}/include/nanogui
+    $ENV{NANOGUI_ROOT}/include 
+    $ENV{NANOGUI_ROOT}/include/nanogui 
+    /usr/local/include
+    /usr/local/include/nanogui
+)
+
+
+find_library(NANOGUI_OPT_LIBRARIES 
+  NAMES 
+    nanogui
+  HINTS 
+    ${CMAKE_INSTALL_PREFIX}/lib 
+    $ENV{NANOGUI_ROOT}/lib 
+    /usr/local/lib
+)
+
+          
+find_library(NANOGUI_DEBUG_LIBRARIES 
+  NAMES 
+    nanoguid
+  HINTS 
+    ${CMAKE_INSTALL_PREFIX}/lib 
+    $ENV{NANOGUI_ROOT}/lib 
+    /usr/local/lib
+)
+
+set(NANOGUI_INCLUDE_DIRS
+    ${NANOGUI_INCLUDE_DIR}
+    ${NANOGUI_INCLUDE_DIR}/nanovg
+)
+
+unset(NANOGUI_LIBRARIES)
+if (NANOGUI_OPT_LIBRARIES)
+  list(APPEND NANOGUI_LIBRARIES optimized ${NANOGUI_OPT_LIBRARIES})
+endif()
+
+if (NANOGUI_DEBUG_LIBRARIES)
+  list(APPEND NANOGUI_LIBRARIES debug ${NANOGUI_DEBUG_LIBRARIES})
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(
+    NanoGUI
+    DEFAULT_MSG
+    NANOGUI_INCLUDE_DIRS
+    NANOGUI_LIBRARIES
+)
+
+mark_as_advanced(
+    NANOGUI_INCLUDE_DIR 
+    NANOGUI_INCLUDE_DIRS 
+    NANOGUI_OPT_LIBRARIES 
+    NANOGUI_DEBUG_LIBRARIES 
+    NANOGUI_LIBRARIES
+)