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285 lines
11 KiB
285 lines
11 KiB
CMake 3.23 Release Notes
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************************
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.. only:: html
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.. contents::
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Changes made since CMake 3.22 include the following.
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New Features
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============
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Presets
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-------
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* :manual:`cmake-presets(7)` files now support schema version ``4``.
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* :manual:`cmake-presets(7)` files now have an optional ``include`` field,
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which allows the files to include other files.
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* :manual:`cmake-presets(7)` files now support a ``${fileDir}`` macro, which
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contains the directory containing the preset file.
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* :manual:`cmake-presets(7)` gained support for specifying the
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``resolvePackageReferences`` command line option in a build preset to control
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restoration behavior of package references from external package managers.
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Currently this is only supported by the Visual Studio generator to support
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restoring packages from NuGet. Other generators ignore this option.
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Generators
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----------
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* The :ref:`Visual Studio Generators` for VS 2019 and above learned to
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support .NET SDK-style project files (``.csproj``) for C# projects.
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See the :prop_tgt:`DOTNET_SDK` target property and corresponding
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:variable:`CMAKE_DOTNET_SDK` variable. :command:`add_custom_command`
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is not yet supported in .NET SDK-style projects.
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* The :ref:`Visual Studio Generators` for VS 2017 and above learned to
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use portable instances of Visual Studio not known to the VS installer.
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See the :variable:`CMAKE_GENERATOR_INSTANCE` variable.
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Command-Line
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------------
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* The :manual:`cmake(1)` ``--build`` command, when used with
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:ref:`Visual Studio Generators` on projects that set the
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:prop_tgt:`VS_PACKAGE_REFERENCES` target property, now automatically
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restores package references from NuGet. The cache variable
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:variable:`CMAKE_VS_NUGET_PACKAGE_RESTORE` may be set to toggle this behavior
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in a build tree. Use the ``--resolve-package-references=<on|off|only>``
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command-line option to control the behavior on one invocation.
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* The :manual:`cmake(1)` command line tool gained a ``--debug-find-pkg=``
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option to enable debug messages under specific :command:`find_package`
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calls.
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* The :manual:`cmake(1)` command line tool gained a ``--debug-find-var=``
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option to enable debug messages for ``find_*`` calls that use specific
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result variables.
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Compilers
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---------
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* The IBM Open XL C/C++ compiler, based on LLVM, is now supported with
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compiler id ``IBMClang``.
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* The MCST LCC compiler is now supported with compiler id ``LCC``.
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See policy :policy:`CMP0129`.
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File-Based API
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--------------
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* The :manual:`cmake-file-api(7)` "codemodel" version 2 ``version`` field
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has been updated to ``2.4``.
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* The :manual:`cmake-file-api(7)` "codemodel" version 2 ``directory``
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object ``installers`` field gained a new ``fileSet`` installer type.
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Commands
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--------
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* The :command:`define_property` command gained a new
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``INITIALIZE_FROM_VARIABLE`` option to cause a target property to be
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initialized from a variable when a target is created.
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* The :command:`install(TARGETS)` command gained a new ``FILE_SET`` argument,
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which can be used to install header file sets associated with a target.
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* The :command:`string(TIMESTAMP)` and :command:`file(TIMESTAMP)` commands now
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support the ``%f`` specifier for microseconds.
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* The :command:`target_sources` command gained a new ``FILE_SET`` mode, which
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can be used to add headers as header-only source files of a target.
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Variables
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---------
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* The :variable:`CMAKE_CUDA_ARCHITECTURES` variable and associated
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:prop_tgt:`CUDA_ARCHITECTURES` target property now support the
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``all``, and ``all-major`` values for CUDA toolkit 7.0+.
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* The :variable:`CMAKE_IGNORE_PREFIX_PATH` and
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:variable:`CMAKE_SYSTEM_IGNORE_PREFIX_PATH` variables were added
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to tell the :command:`find_package`, :command:`find_program`,
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:command:`find_library`, :command:`find_path`, and :command:`find_file`
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commands to ignore specified prefixes.
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* The :variable:`CMAKE_LINK_LIBRARIES_ONLY_TARGETS` variable and
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corresponding :prop_tgt:`LINK_LIBRARIES_ONLY_TARGETS` target
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property were added to optionally require that all link items
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that can be target names are actually names of existing targets.
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Properties
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----------
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* The :prop_tgt:`HEADER_SETS` and :prop_tgt:`INTERFACE_HEADER_SETS` read-only
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target properties were added to list header sets associated with a target.
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* The :prop_tgt:`HEADER_SET` and :prop_tgt:`HEADER_SET_<NAME>` target
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properties were added to list files in the default header set
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and named header sets, respectively.
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* The :prop_tgt:`HEADER_DIRS` and :prop_tgt:`HEADER_DIRS_<NAME>` target
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properties were added to specify the base directories of the default
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header set and named header sets, respectively.
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* The :prop_tgt:`IMPORTED_NO_SYSTEM` target property was added to
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specify that an :ref:`Imported Target <Imported Targets>` should
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not be treated as a system library (i.e. its include directories
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are not automatically ``SYSTEM``).
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* The :prop_tgt:`XCODE_EMBED_PLUGINS <XCODE_EMBED_<type>>` target property
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was added to tell the :generator:`Xcode` generator what targets to put in
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the ``Embed PlugIns`` build phase.
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* The :prop_tgt:`XCODE_SCHEME_ENABLE_GPU_FRAME_CAPTURE_MODE` target property
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and supporting :variable:`CMAKE_XCODE_SCHEME_ENABLE_GPU_FRAME_CAPTURE_MODE`
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variable were added to tell the :generator:`Xcode` generator to enable
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specifying the Xcode scheme option property ``GPU Frame Capture``.
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Modules
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-------
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* The :module:`CheckPIESupported` module now supports the ``OBJC``,
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``OBJCXX``, ``CUDA``, and ``HIP`` languages. It also now honors
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:variable:`CMAKE_SYSROOT` and :variable:`CMAKE_OSX_SYSROOT`.
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* The :module:`ExternalProject` module's :command:`ExternalProject_Add`
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command gained support for a ``USES_TERMINAL_PATCH`` option to give
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the patch step exclusive terminal access.
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* The :module:`FindCUDAToolkit` module now provides a target for
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``libcufft_static_nocallback``, if found.
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* The :module:`FindGLUT` module now provides the ``GLUT_INCLUDE_DIRS``
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result variable to conform with naming conventions documented in the
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:manual:`cmake-developer(7)` manual. This supersedes the legacy
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``GLUT_INCLUDE_DIR`` variable.
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* The :module:`FindGTest` module now provides a target for GMock, if found.
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* The :module:`FindVulkan` module now provides a ``Vulkan_VERSION`` result
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variable reporting the version number.
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CTest
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-----
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* :manual:`ctest(1)` gained a new :variable:`CTEST_SUBMIT_INACTIVITY_TIMEOUT`
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variable, which can be used to specify a timeout for submission inactivity.
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CPack
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-----
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* The :cpack_gen:`CPack productbuild Generator` gained the new
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:variable:`CPACK_PRODUCTBUILD_DOMAINS`,
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:variable:`CPACK_PRODUCTBUILD_DOMAINS_ANYWHERE`,
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:variable:`CPACK_PRODUCTBUILD_DOMAINS_USER`, and
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:variable:`CPACK_PRODUCTBUILD_DOMAINS_ROOT` variables for
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adding the domains element to the Distribution XML. With these variables,
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it is now possible to install products to the user's home directory
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without requiring administrative privileges.
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* The :cpack_gen:`CPack productbuild Generator` gained a new variable,
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:variable:`CPACK_PRODUCTBUILD_IDENTIFIER`, used to customize the unique
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product identifier associated with the product.
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* The :cpack_gen:`CPack IFW Generator` gained the new
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:variable:`CPACK_IFW_ARCHIVE_FORMAT` and
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:variable:`CPACK_IFW_ARCHIVE_COMPRESSION` variables for setting the
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format used when packaging new component data archives, and choosing
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the compression level used.
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These features are available for QtIFW 4.2 and newer.
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* The :cpack_gen:`CPack IFW Generator` gained new
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:variable:`CPACK_IFW_PACKAGE_DISABLE_COMMAND_LINE_INTERFACE` variable to
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prevent the user from passing any consumer command to the installer, like
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``install``, ``update``, and ``remove``.
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This feature is available for QtIFW 4.0 and newer.
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* The :cpack_gen:`CPack IFW Generator` gained the new
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:variable:`CPACK_IFW_PACKAGE_PRODUCT_IMAGES` variable for adding a
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list of images to be shown on the ``PerformInstallationPage``.
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This feature is available for QtIFW 4.0 and newer.
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* The :cpack_gen:`CPack IFW Generator` gained the new
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:variable:`CPACK_IFW_PACKAGE_RUN_PROGRAM`,
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:variable:`CPACK_IFW_PACKAGE_RUN_PROGRAM_ARGUMENTS`, and
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:variable:`CPACK_IFW_PACKAGE_RUN_PROGRAM_DESCRIPTION` variables for
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executing a command after the installer is done if the user accepts
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the action. This feature is available for QtIFW 4.0 and newer.
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* The :cpack_gen:`CPack IFW Generator` gained the new
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:variable:`CPACK_IFW_PACKAGE_SIGNING_IDENTITY` variable for specifying a
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code signing identity to be used for signing the generated app bundle.
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This feature is available on macOS only, and for QtIFW 3.0 and newer.
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* The :cpack_gen:`CPack WIX Generator` gained a new variable,
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:variable:`CPACK_WIX_SKIP_WIX_UI_EXTENSION`, to skip the inclusion
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of WixUIExtensions.
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Deprecated and Removed Features
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===============================
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* :manual:`cmake(1)` now warns when multiple source paths are specified,
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as in ``cmake -S src1 src2``. This has never been officially documented
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or supported, but older versions accidentally accepted multiple source
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paths and used the last path specified. Update scripts to avoid
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passing multiple source path arguments.
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* The :manual:`cpack(1)` undocumented ``OSXX11`` generator has been removed.
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Other Changes
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=============
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* The :cpack_gen:`CPack DragNDrop Generator` no longer attaches
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:variable:`CPACK_RESOURCE_FILE_LICENSE` as the license agreement in
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the generated ``.dmg`` unless explicitly activated by a
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:variable:`CPACK_DMG_SLA_USE_RESOURCE_FILE_LICENSE` option.
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In CMake projects, the :module:`CPack` module enables the option
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by default for compatibility.
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* ``CUDA`` targets may now enable both :prop_tgt:`CUDA_SEPARABLE_COMPILATION`
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and :prop_tgt:`CUDA_PTX_COMPILATION`.
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* ``CUDA`` compiler detection now:
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* issues an error in all cases when it's unable to compute the default
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architecture(s) if required (see :policy:`CMP0104`),
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* handles ``OFF`` for :variable:`CMAKE_CUDA_ARCHITECTURES` on Clang,
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* supports the theoretical case of multiple default architectures, and
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* tries to detect invalid architectures and issue an error.
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* ``CUDA`` with Clang now implements policy :policy:`CMP0105` and
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the ``$<DEVICE_LINK:...>`` and ``$<HOST_LINK:...>``
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:manual:`generator expressions <cmake-generator-expressions(7)>`.
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* The :command:`define_property` command's ``BRIEF_DOCS`` and ``FULL_DOCS``
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arguments are now optional.
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* :manual:`ccmake(1)` may now be enabled on Windows when building
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CMake from source. This is experimental, and so is not included
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in official distributions.
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Updates
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=======
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Changes made since CMake 3.23.0 include the following.
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3.23.1
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------
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* The :command:`target_sources` ``FILE_SET`` feature added in CMake 3.23.0
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does not yet place header files properly in Apple :prop_tgt:`FRAMEWORK`
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targets. Pending further work in a future version of CMake, it is now
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an error to add a ``FILE_SET`` of type ``HEADERS`` to such targets on
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Apple platforms.
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* The :prop_tgt:`HEADER_SETS` and :prop_tgt:`INTERFACE_HEADER_SETS` target
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properties added in CMake 3.23.0 are now read-only records of the header
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sets created by the :command:`target_sources` command.
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