CMake 3.25 Release Notes ************************ .. only:: html .. contents:: Changes made since CMake 3.24 include the following. New Features ============ Presets ------- * The :manual:`cmake-presets(7)` schema version has been bumped to ``6``. * The :manual:`cmake-presets(7)` format now supports a ``packagePresets`` field to specify presets for :option:`cpack --preset`. * The :manual:`cmake-presets(7)` format now supports a ``workflowPresets`` field to specify presets for :option:`cmake --workflow`. * The :manual:`cmake-presets(7)` format now supports an ``outputJUnitFile`` field to specify JUnit output in test presets. Languages --------- * The :manual:`Compile Features ` functionality is now aware of C++26, and defines a ``cxx_std_26`` meta-feature. C++26 compiler modes may also be specified via the :prop_tgt:`CXX_STANDARD`, :prop_tgt:`CUDA_STANDARD`, :prop_tgt:`HIP_STANDARD`, or :prop_tgt:`OBJCXX_STANDARD` target properties. * ``CUDA`` language support now includes device link-time optimization when using ``nvcc``. The :variable:`CMAKE_INTERPROCEDURAL_OPTIMIZATION` variable and the associated :prop_tgt:`INTERPROCEDURAL_OPTIMIZATION` target property will activate device LTO. Command-Line ------------ * A :option:`cmake --workflow --preset ` mode was added to drive sequences of configure, build, test, and package operations through a single command. * The :option:`cmake -E capabilities ` command gained a new ``tls`` field that tells whether or not TLS is enabled. * The :option:`cmake -E env ` command-line tool gained a ``--modify`` flag to support :prop_test:`ENVIRONMENT_MODIFICATION` operations. * The :option:`cmake --debug-trycompile` option now prints log messages reporting the directory in which each try-compile check is done. Compilers --------- * Support for the `Tasking compiler toolsets`_ (SmartCode, TriCore, Standalone: ARM, MCS, 8051) was added with compiler id ``Tasking``. See the :variable:`CMAKE_TASKING_TOOLSET` variable. .. _Tasking compiler toolsets: https://www.tasking.com Commands -------- * The :command:`add_subdirectory` command gained a ``SYSTEM`` option to enable the :prop_dir:`SYSTEM` directory property in the subdirectory. * The :command:`block` and :command:`endblock` commands were added to manage specific scopes (policy or variable) for a contained block of commands. * The :command:`cmake_language` command gained a new ``GET_MESSAGE_LOG_LEVEL`` sub-command. It can be used to query the current message logging level. * The :command:`find_file`, :command:`find_path`, :command:`find_library`, and :command:`find_program` commands gained a ``VALIDATOR`` option to specify a function to be called for each candidate item to validate it. * The :command:`find_package` command now considers paths of the form ``/*/(cmake|CMake)/*/`` when searching for package configuration files. * The :command:`return` command gained a ``PROPAGATE`` option to propagate variables to the scope to which control returns. See policy :policy:`CMP0140`. * The :command:`try_compile` and :command:`try_run` commands gained new signatures that more consistently use keyword dispatch and do not require a binary directory to be specified. Additionally, these signatures use a unique directory for each invocation, which allows multiple outputs to be preserved when using :option:`cmake --debug-trycompile`. * The :command:`try_compile` and :command:`try_run` commands gained the option ``NO_CACHE`` to store results in normal variables. * The :command:`try_run` command gained ``RUN_OUTPUT_STDOUT_VARIABLE`` and ``RUN_OUTPUT_STDERR_VARIABLE`` options to capture stdout and stderr separately from the output of the compiled program. Variables --------- * The :variable:`BSD` and :variable:`CMAKE_HOST_BSD` variables are now set to a string value when the target or host system is BSD, respectively. * The :variable:`LINUX` and :variable:`CMAKE_HOST_LINUX` variables are now set to true when the target or host system is Linux, respectively. * The :variable:`CMAKE_MSVC_DEBUG_INFORMATION_FORMAT` variable and :prop_tgt:`MSVC_DEBUG_INFORMATION_FORMAT` target property were introduced to select the debug information format for compilers targeting the MSVC ABI. See policy :policy:`CMP0141`. * The :variable:`CMAKE_XCODE_SCHEME_ENABLE_GPU_API_VALIDATION` variable and corresponding :prop_tgt:`XCODE_SCHEME_ENABLE_GPU_API_VALIDATION` target property were added to tell the :generator:`Xcode` generator what to put in the scheme's ``Metal: API Validation`` setting. * The :variable:`CMAKE_XCODE_SCHEME_ENABLE_GPU_SHADER_VALIDATION` variable and corresponding :prop_tgt:`XCODE_SCHEME_ENABLE_GPU_SHADER_VALIDATION` target property were added to tell the :generator:`Xcode` generator what to put in the scheme's ``Metal: Shader Validation`` setting. * The :variable:`CMAKE_XCODE_SCHEME_LAUNCH_MODE` variable and corresponding :prop_tgt:`XCODE_SCHEME_LAUNCH_MODE` target property were added to tell the :generator:`Xcode` generator what to put in the scheme's "Launch" mode setting. * The :variable:`CMAKE_XCODE_SCHEME_LAUNCH_CONFIGURATION` variable and corresponding :prop_tgt:`XCODE_SCHEME_LAUNCH_CONFIGURATION` target property were added to tell the :generator:`Xcode` generator what configuration to put in the scheme's Launch action. Properties ---------- * The :prop_tgt:`_COMPILER_LAUNCHER` target property now supports :manual:`generator expressions `. * The :prop_tgt:`EXPORT_NO_SYSTEM` target property was added to specify that :command:`install(EXPORT)` and :command:`export` commands will generate na imported target with :prop_tgt:`SYSTEM` property ``OFF``. * The :prop_tgt:`SYSTEM` target property was added to specify whether a target should be treated as a system library (i.e. its include directories are automatically ``SYSTEM`` when compiling consumers). If not set, the default is the previous behavior: on for imported targets and off for other targets. * The :prop_dir:`SYSTEM` directory property was added to initialize the :prop_tgt:`SYSTEM` target property for targets created in that directory. Modules ------- * The :module:`FetchContent` module's :command:`FetchContent_Declare` command gained a ``SYSTEM`` option which sets the :prop_dir:`SYSTEM` directory property on subdirectories created by :command:`FetchContent_MakeAvailable`. * The :module:`FindCUDAToolkit` module now provides a target for :ref:`nvtx3 ` for CUDA 10.0+, which supersedes :ref:`nvToolsExt `. A deprecation warning is emitted when using ``nvToolsExt`` if the project requires CMake 3.25 and CUDA 10.0+ is used. * The :module:`FindDoxygen` module's version handling has been improved: * Multiple candidate installations will now be considered, if needed, to satisfy version constraints. Previously, only the first one encountered would be considered. * Version ranges are supported. * Variations in the version format reported by Doxygen are now tolerated (e.g. a trailing git commit hash). * The :module:`FindOpenAL` module now provides an imported target. * The :module:`FindOpenSP` module was added to find the OpenSP library. * The :module:`FindVulkan` module gained support for new components: ``dxc`` DirectX Shader Compiler. ``volk`` Volk open-source vulkan meta-loader. CPack ----- * The :cpack_gen:`CPack Archive Generator` gained a new :variable:`CPACK_ARCHIVE_FILE_EXTENSION` variable to control the package file name extension. * The :cpack_gen:`CPack NSIS Generator` gained two new variables :variable:`CPACK_NSIS_EXECUTABLE_PRE_ARGUMENTS` and :variable:`CPACK_NSIS_EXECUTABLE_POST_ARGUMENTS` to provide arguments to the nsis executable invocation. * The :module:`CPack` module gained the :variable:`CPACK_READELF_EXECUTABLE`, :variable:`CPACK_OBJCOPY_EXECUTABLE`, and :variable:`CPACK_OBJDUMP_EXECUTABLE` variables to control the locations of binutils used by :manual:`cpack(1)`. Deprecated and Removed Features =============================== * The :prop_tgt:`IMPORTED_NO_SYSTEM` target property has been deprecated in favor of :prop_tgt:`SYSTEM` and :prop_tgt:`EXPORT_NO_SYSTEM`. * The :generator:`Visual Studio 10 2010` generator has been removed. * The :generator:`Visual Studio 11 2012` generator is now deprecated and will be removed in a future version of CMake. Other Changes ============= * The :envvar:`SSL_CERT_FILE` and :envvar:`SSL_CERT_DIR` environment variables can now be used to override where to find certificate authorities for TLS/SSL operations. * If :prop_tgt:`_CLANG_TIDY` includes a ``-p`` argument, the full compiler command line is no longer appended after ``--``. * The :generator:`Xcode` generator no longer adds the per-config suffix ``$(CONFIGURATION)$(EFFECTIVE_PLATFORM_NAME)`` to library search paths. See policy :policy:`CMP0142`. Updates ======= Changes made since CMake 3.25.0 include the following. 3.25.1 ------ * On Windows, when targeting the MSVC ABI, the :command:`find_library` command no longer accepts ``.a`` file names. This behavior was added in CMake 3.25.0, but has been reverted due finding GNU-ABI libraries in cases we did not previously. 3.25.2 ------ * CUDA language level 20 (corresponding to C++20) is now supported with NVCC 12.0 and above. * On Windows, the ``icpx`` compiler now provided by Intel oneAPI 2023.0 and above is no longer selected because its GNU-like command-line is not yet supported by CMake.