| CMake 3.22 Release Notes | |
| ************************ | |
| .. only:: html | |
| .. contents:: | |
| Changes made since CMake 3.21 include the following. | |
| New Features | |
| ============ | |
| Commands | |
| -------- | |
| * The :command:`cmake_host_system_information` command can now query | |
| `OS identification variables`_ from the :file:`/etc/os-release` file. | |
| * The :command:`string(TIMESTAMP)` command now supports the ``%V`` | |
| specifier for ISO 8601 week numbers. | |
| .. _`OS identification variables`: https://www.freedesktop.org/software/systemd/man/latest/os-release.html | |
| Variables | |
| --------- | |
| * The :envvar:`CMAKE_BUILD_TYPE` environment variable was added to | |
| provide a default value for the :variable:`CMAKE_BUILD_TYPE` variable. | |
| * The :envvar:`CMAKE_CONFIGURATION_TYPES` environment variable was added to | |
| provide a default value for the :variable:`CMAKE_CONFIGURATION_TYPES` | |
| variable. | |
| * The :envvar:`CMAKE_INSTALL_MODE` environment variable was added to | |
| tell :command:`install` rules (implemented by :command:`file(INSTALL)`) | |
| to install symbolic links instead of copying of files. | |
| * The :variable:`CMAKE_<LANG>_LINK_WHAT_YOU_USE_FLAG` and | |
| :variable:`CMAKE_LINK_WHAT_YOU_USE_CHECK` variables were added to | |
| control the linker flag and check used by the | |
| :prop_tgt:`LINK_WHAT_YOU_USE` target property. | |
| * The :variable:`CMAKE_REQUIRE_FIND_PACKAGE_<PackageName>` variable | |
| was added to turn a non-REQUIRED :command:`find_package` call into | |
| a REQUIRED one. | |
| Properties | |
| ---------- | |
| * The :prop_tgt:`<LANG>_EXTENSIONS` target property is now initialized to | |
| :variable:`CMAKE_<LANG>_EXTENSIONS_DEFAULT`, detected from the compiler. | |
| See :policy:`CMP0128`. | |
| * The :prop_sf:`VS_SETTINGS` source file property is now supported for | |
| all source file types. Previously it worked only for non-built sources. | |
| Modules | |
| ------- | |
| * The :module:`CMakeDependentOption` module :command:`cmake_dependent_option` | |
| macro now supports full :ref:`Condition Syntax`. | |
| See policy :policy:`CMP0127`. | |
| * The :module:`FetchContent` module now passes through the | |
| :variable:`CMAKE_TLS_VERIFY`, :variable:`CMAKE_TLS_CAINFO`, | |
| :variable:`CMAKE_NETRC` and :variable:`CMAKE_NETRC_FILE` variables (when | |
| defined) to the underlying :module:`ExternalProject` sub-build. | |
| Previously, those variables were silently ignored by :module:`FetchContent`. | |
| * The :module:`FindBLAS` and :module:`FindLAPACK` modules gained | |
| a ``BLA_SIZEOF_INTEGER`` option to find a BLAS/LAPACK whose ABI | |
| uses a specific integer size. | |
| * The :module:`FindJasper` module now provides an imported target. | |
| * The :module:`FindMatlab` module now provides imported targets. | |
| * The :module:`FindPkgConfig` module gained a :variable:`PKG_CONFIG_ARGN` | |
| variable to specify arguments to ``pkg-config`` calls. | |
| * The :module:`GoogleTest` module :command:`gtest_discover_tests` | |
| function gained a ``TEST_FILTER`` option to filter tests using | |
| ``--gtest_filter`` during test discovery. | |
| * The :module:`UseSWIG` module, for :ref:`Visual Studio Generators`, | |
| can now use the ``swig`` tool to generate implicit dependencies. | |
| CTest | |
| ----- | |
| * :manual:`ctest(1)` learned to recognize labels attached to a test at run time. | |
| Previously it was only possible to attach labels to tests at configure time | |
| by using the :prop_test:`LABELS` test property. | |
| See :ref:`Additional Test Measurements` for more information. | |
| * :manual:`ctest(1)` learned to be able to modify the environment for a test | |
| through the :prop_test:`ENVIRONMENT_MODIFICATION` property. This is allows | |
| for updates to environment variables based on the environment present at | |
| test time. | |
| * The :command:`ctest_memcheck` command now also generates a | |
| :file:`DynamicAnalysis-Test.xml` file which may be used to submit test | |
| results to CDash. | |
| CPack | |
| ----- | |
| * The :cpack_gen:`CPack DEB Generator` gained the | |
| option to set :variable:`CPACK_DEBIAN_COMPRESSION_TYPE` to ``zstd``, | |
| which enables Zstandard compression for deb packages. | |
| * The :cpack_gen:`CPack NSIS Generator` gained a new | |
| :variable:`CPACK_NSIS_IGNORE_LICENSE_PAGE` variable to suppress | |
| the license page in the installer. | |
| * The :cpack_gen:`CPack RPM Generator` gained the | |
| :variable:`CPACK_RPM_REQUIRES_EXCLUDE_FROM` option to avoid scanning | |
| specific paths for dependencies. | |
| Deprecated and Removed Features | |
| =============================== | |
| * The :generator:`Visual Studio 10 2010` generator is now deprecated | |
| and will be removed in a future version of CMake. | |
| Other Changes | |
| ============= | |
| * The :manual:`Compile Features <cmake-compile-features(7)>` functionality now | |
| correctly disables or enables compiler extensions when no standard level is | |
| specified and avoids unnecessarily adding language standard flags if the | |
| requested settings match the compiler's defaults. See :policy:`CMP0128`. | |
| * The :manual:`Compile Features <cmake-compile-features(7)>` functionality | |
| now ignores features for languages that are not enabled. | |
| * The :ref:`Ninja Generators` now implement the ``edit_cache`` target | |
| using :manual:`ccmake(1)` if available. | |
| * The :generator:`Ninja` and :generator:`NMake Makefiles` generators | |
| now use the MSVC ``-external:I`` flag for system includes. | |
| This became available as of VS 16.10 (toolchain version 14.29.30037). | |
| * The :cpack_gen:`CPack NSIS Generator` now requires NSIS 3.03 or later. | |
| Updates | |
| ======= | |
| Changes made since CMake 3.22.0 include the following. | |
| 3.22.1 | |
| ------ | |
| * This version made no changes to documented features or interfaces. | |
| Some implementation updates were made to support ecosystem changes | |
| and/or fix regressions. | |
| 3.22.2 | |
| ------ | |
| * The ``OLD`` behavior of :policy:`CMP0128` was fixed to add flags even when | |
| the specified standard matches the compiler default. | |
| 3.22.3 | |
| ------ | |
| * The :command:`while` command again ignores errors in condition evaluation | |
| as CMake 3.21 and below did. This bug was fixed in 3.22.0, but exposed | |
| errors in existing projects. The fix has been reverted to restore | |
| compatibility. The fix may be restored in a future version of CMake | |
| via a policy. | |
| 3.22.4, 3.22.5, 3.22.6 | |
| ---------------------- | |
| * These versions made no changes to documented features or interfaces. | |
| Some implementation updates were made to support ecosystem changes | |
| and/or fix regressions. | |