[ANNOUNCE] CMake 3.22.0-rc2 is ready for testing

Thu Oct 28 16:47:48 BST 2021

I am proud to announce the second CMake 3.22 release candidate.
  https://cmake.org/download/

Documentation is available at:
  https://cmake.org/cmake/help/v3.22

Release notes appear below and are also published at
  https://cmake.org/cmake/help/v3.22/release/3.22.html

Some of the more significant changes in CMake 3.22 are:

* The "Compile Features" 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 "CMP0128".

* The "cmake_host_system_information()" command can now query OS
  identification variables from the "/etc/os-release" file.

* The "CMAKE_BUILD_TYPE" environment variable was added to provide a
  default value for the "CMAKE_BUILD_TYPE" variable.

* The "CMAKE_REQUIRE_FIND_PACKAGE_<PackageName>" variable was added to
  turn a non-REQUIRED "find_package()" call into a REQUIRED one.

* The "FetchContent" module now passes through the "CMAKE_TLS_VERIFY",
  "CMAKE_TLS_CAINFO", "CMAKE_NETRC" and "CMAKE_NETRC_FILE" variables
  (when defined) to the underlying "ExternalProject" sub-build.
  Previously, those variables were silently ignored by "FetchContent".

* The "Visual Studio 10 2010" generator is now deprecated and will be
  removed in a future version of CMake.

CMake 3.22 Release Notes
************************

Changes made since CMake 3.21 include the following.

New Features
============

Commands
--------

* The "cmake_host_system_information()" command can now query OS
  identification variables from the "/etc/os-release" file.

* The "string(TIMESTAMP)" command now supports the "%V" specifier for
  ISO 8601 week numbers.

Variables
---------

* The "CMAKE_BUILD_TYPE" environment variable was added to provide a
  default value for the "CMAKE_BUILD_TYPE" variable.

* The "CMAKE_CONFIGURATION_TYPES" environment variable was added to
  provide a default value for the "CMAKE_CONFIGURATION_TYPES"
  variable.

* The "CMAKE_INSTALL_MODE" environment variable was added to tell
  "install()" rules (implemented by "file(INSTALL)") to install
  symbolic links instead of copying of files.

* The "CMAKE_<LANG>_LINK_WHAT_YOU_USE_FLAG" and
  "CMAKE_LINK_WHAT_YOU_USE_CHECK" variables were added to control the
  linker flag and check used by the "LINK_WHAT_YOU_USE" target
  property.

* The "CMAKE_REQUIRE_FIND_PACKAGE_<PackageName>" variable was added to
  turn a non-REQUIRED "find_package()" call into a REQUIRED one.

Properties
----------

* The "<LANG>_EXTENSIONS" target property is now initialized to
  "CMAKE_<LANG>_EXTENSIONS_DEFAULT", detected from the compiler. See
  "CMP0128".

* The "VS_SETTINGS" source file property is now supported for all
  source file types.  Previously it worked only for non-built sources.

Modules
-------

* The "CMakeDependentOption" module "cmake_dependent_option()" macro
  now supports full Condition Syntax. See policy "CMP0127".

* The "FetchContent" module now passes through the "CMAKE_TLS_VERIFY",
  "CMAKE_TLS_CAINFO", "CMAKE_NETRC" and "CMAKE_NETRC_FILE" variables
  (when defined) to the underlying "ExternalProject" sub-build.
  Previously, those variables were silently ignored by "FetchContent".

* The "FindBLAS" and "FindLAPACK" modules gained a
  "BLA_SIZEOF_INTEGER" option to find a BLAS/LAPACK whose ABI uses a
  specific integer size.

* The "FindJasper" module now provides an imported target.

* The "FindMatlab" module now provides imported targets.

* The "FindPkgConfig" module gained a "PKG_CONFIG_ARGN" variable to
  specify arguments to "pkg-config" calls.

* The "GoogleTest" module "gtest_discover_tests()" function gained a
  "TEST_FILTER" option to filter tests using "--gtest_filter" during
  test discovery.

* The "UseSWIG" module, for Visual Studio Generators, can now use the
  "swig" tool to generate implicit dependencies.

CTest
-----

* "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 "LABELS" test property. See Additional
  Test Measurements for more information.

* "ctest(1)" learned to be able to modify the environment for a test
  through the "ENVIRONMENT_MODIFICATION" property. This is allows for
  updates to environment variables based on the environment present at
  test time.

* The "ctest_memcheck()" command now also generates a
  "DynamicAnalysis-Test.xml" file which may be used to submit test
  results to CDash.

CPack
-----

* The "CPack DEB Generator" gained the option to set
  "CPACK_DEBIAN_COMPRESSION_TYPE" to "zstd", which enables Zstandard
  compression for deb packages.

* The "CPack NSIS Generator" gained a new
  "CPACK_NSIS_IGNORE_LICENSE_PAGE" variable to suppress the license
  page in the installer.

* The "CPack RPM Generator" gained the
  "CPACK_RPM_REQUIRES_EXCLUDE_FROM" option to avoid scanning specific
  paths for dependencies.

Deprecated and Removed Features
===============================

* The "Visual Studio 10 2010" generator is now deprecated and will be
  removed in a future version of CMake.

Other Changes
=============

* The "Compile Features" 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 "CMP0128".

* The "Compile Features" functionality now ignores features for
  languages that are not enabled.

* The Ninja Generators now implement the "edit_cache" target using
  "ccmake(1)" if available.

* The "Ninja" and "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 NSIS Generator" now requires NSIS 3.03 or later.

----------------------------------------------------------------------------
Changes made since CMake 3.22.0-rc1:

Arcturus Arcturus (1):
  Help: Fix file(INSTALL) docs w.r.t. CMAKE_INSTALL_MESSAGE

Ben Boeckel (2):
  cmCTestRunTest: fix modifying non-existent envvars
  cmRST: support `versionadded` and `versionchanged` directives

Brad King (17):
  zstd: Backport fix for SIGBUS on armv6 from zstd 1.5.0
  IRSL: Fix discovery of VS 2022 v143 toolset redistributables for preview 5
  Source: Fix typo in _WIN32 preprocessor checks
  VS: Update Visual Studio 17 2022 generator for the Release Candidate
  cmGlobalVisualStudio10Generator: Allow subclasses to reset MSBuild search
  cmGlobalVisualStudioVersionedGenerator: Allow repeating
SetGeneratorInstance
  cmGlobalGenerator: Add method to check if generator is at least VS 10
  cmGlobalVisualStudio10Generator: Add method to find MSBuild early
  cmake_host_system_information: Add undocumented VS_MSBUILD_COMMAND key
  Android: Refactor sysroot detection under Visual Studio
  Restore honoring CMAKE_GENERATOR_INSTANCE in toolchain file
  BinUtils: Avoid llvm-strip versions older than Clang 11
  HIP: Add missing space when appending --cuda-host-only
  cmGlobalVisualStudioVersionedGenerator: Fix repeating SetGeneratorInstance
  VS: Update Visual Studio 17 2022 generator for the Release Candidates
  gitlab-ci: Run manual jobs automatically only on scheduled pipelines
  CMake 3.22.0-rc2

Erlend E. Aasland (1):
  CPack/IFW: Add support for QtIFW 4.2

Michael Hirsch (2):
  Help: gen expr: note that CONFIG is comma-separated
  Help: Clarify ENVIRONMENT_MODIFICATION case sensitivity

Raul Tambre (1):
  CheckLanguage: Don't pass CMAKE_CUDA_HOST_COMPILER for Visual Studio
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