[ANNOUNCE] CMake 3.31.0-rc3 is ready for testing
John Parent
john.parent at kitware.com
Wed Oct 30 02:37:12 GMT 2024
I am proud to announce the third CMake 3.31 release candidate.
https://cmake.org/download/
Documentation is available at:
https://cmake.org/cmake/help/v3.31
Release notes appear below and are also published at
https://cmake.org/cmake/help/v3.31/release/3.31.html
Release milestone is available at:
https://gitlab.kitware.com/cmake/cmake/-/milestones/150
Some of the most significant changes in CMake 3.31 are:
* "cmake-presets(7)" files may now include comments using the key
"$comment" at any level within the JSON object to provide
documentation.
* The Ninja Generators and Makefile Generators now produce a "codegen"
build target. See policy "CMP0171". It drives a subset of the
build graph sufficient to run custom commands created with
"add_custom_command()"'s new "CODEGEN" option.
* The "CMAKE_LINK_LIBRARIES_STRATEGY" variable and corresponding
"LINK_LIBRARIES_STRATEGY" target property were added to optionally
specify the strategy CMake uses to generate link lines.
* The "CMAKE_AIX_SHARED_LIBRARY_ARCHIVE" variable and corresponding
"AIX_SHARED_LIBRARY_ARCHIVE" target property were added to create
shared libraries on AIX as shared library archives.
* The "CMAKE_EXPORT_BUILD_DATABASE" variable, a corresponding
"CMAKE_EXPORT_BUILD_DATABASE" environment variable, and an
"EXPORT_BUILD_DATABASE" target property, were added to enable
exporting C++ module compile commands. This is only supported with
Ninja Generators.
* The "CMAKE_<LANG>_HOST_COMPILER_ID" and
"CMAKE_<LANG>_HOST_COMPILER_VERSION" variables were added, where
"<LANG>" is either "CUDA" or "HIP". They are populated when
"CMAKE_<LANG>_COMPILER_ID" is "NVIDIA" to identify NVCC's host
compiler.
* Compatibility with versions of CMake older than 3.10 is now
deprecated and will be removed from a future version. Calls to
"cmake_minimum_required()" or "cmake_policy()" that set the policy
version to an older value now issue a deprecation diagnostic.
* When static libraries on link lines are de-duplicated (by policy
"CMP0156"), the first occurrence is now kept on all platforms. See
policy "CMP0179".
* The "file(DOWNLOAD)" and "file(UPLOAD)" commands now verify TLS
server certificates for connections to "https://" URLs by default.
See the "CMAKE_TLS_VERIFY" variable for details. This change was
made without a policy so that users are protected even when building
projects that have not been updated. Users may set the
"CMAKE_TLS_VERIFY" environment variable to "0" to restore the old
default.
CMake 3.31 Release Notes
************************
Changes made since CMake 3.30 include the following.
New Features
============
Presets
-------
* "cmake-presets(7)" files may now include comments using the key
"$comment" at any level within the JSON object to provide
documentation.
* "cmake-presets(7)" files may now request graphviz output using the
"graphviz" key in a configure preset.
Generators
----------
* The Ninja Generators and Makefile Generators now produce a "codegen"
build target. See policy "CMP0171". It drives a subset of the
build graph sufficient to run custom commands created with
"add_custom_command()"'s new "CODEGEN" option.
Command-Line
------------
* The "cmake --workflow" mode now accepts a preset name as the first
argument, allowing the simpler command line "cmake --workflow
<preset>".
* The "cmake -LR[A][H]" option was added to list cache entries whose
names match a regular expression.
Compilers
---------
* The LFortran compiler is now supported with "compiler id"
"LFortran".
Commands
--------
* The "add_custom_command()" command gained a "CODEGEN" option to mark
a custom command's outputs as dependencies of a "codegen" target.
See policy "CMP0171".
* The "cmake_pkg_config()" command was added as an endpoint for using
CMake's native pkg-config format parser. The only supported option
in this release is "EXTRACT", which provides low-level access to the
values produced by parsing a pkg-config file. For most users, this
is not yet a suitable replacement for the "FindPkgConfig" module.
* The "file(ARCHIVE_CREATE)" command gained a "WORKING_DIRECTORY"
option to specify a working directory for the archiving process.
* The "file(MAKE_DIRECTORY)" command gained a "RESULT" option to
capture failure in a result variable.
* The "install(FILES)" and "install(DIRECTORY)" commands' "TYPE"
argument gained support for a "LIBEXEC" type.
Variables
---------
* The "CMAKE_AIX_SHARED_LIBRARY_ARCHIVE" variable and corresponding
"AIX_SHARED_LIBRARY_ARCHIVE" target property were added to create
shared libraries on AIX as shared library archives.
* The "CMAKE_EXPORT_BUILD_DATABASE" variable, a corresponding
"CMAKE_EXPORT_BUILD_DATABASE" environment variable, and an
"EXPORT_BUILD_DATABASE" target property, were added to enable
exporting C++ module compile commands. This is only supported with
Ninja Generators.
* The "CMAKE_HOST_EXECUTABLE_SUFFIX" variable was added to provide the
suffix for executable names on the host platform.
* The "CMAKE_<LANG>_HOST_COMPILER_ID" and
"CMAKE_<LANG>_HOST_COMPILER_VERSION" variables were added, where
"<LANG>" is either "CUDA" or "HIP". They are populated when
"CMAKE_<LANG>_COMPILER_ID" is "NVIDIA" to identify NVCC's host
compiler.
* The "CMAKE_<LANG>_STANDARD_LINK_DIRECTORIES" variable was added.
Toolchain files can set this variable to control which link library
directory paths are always passed to the compiler for the specified
language.
* The "CMAKE_LINK_LIBRARIES_STRATEGY" variable and corresponding
"LINK_LIBRARIES_STRATEGY" target property were added to optionally
specify the strategy CMake uses to generate link lines.
Properties
----------
* The "MACOSX_FRAMEWORK_BUNDLE_NAME" target property was added to set
the "CFBundleName" key in an Apple "FRAMEWORK"'s "Info.plist" file.
* The "UNITY_BUILD" target property now supports the "CUDA" language.
* The "VS_FRAMEWORK_REFERENCES" target property was added to tell
Visual Studio Generators to add framework references.
Modules
-------
* Check modules now support a "CMAKE_REQUIRED_LINK_DIRECTORIES"
variable. The following modules gained this support:
* "CMakePushCheckState"
* "CheckCCompilerFlag"
* "CheckCSourceCompiles"
* "CheckCSourceRuns"
* "CheckCXXCompilerFlag"
* "CheckCXXSourceCompiles"
* "CheckCXXSourceRuns"
* "CheckCXXSymbolExists"
* "CheckCompilerFlag"
* "CheckFortranCompilerFlag"
* "CheckFortranFunctionExists"
* "CheckFortranSourceCompiles"
* "CheckFortranSourceRuns"
* "CheckFunctionExists"
* "CheckIncludeFile"
* "CheckIncludeFileCXX"
* "CheckIncludeFiles"
* "CheckOBJCCompilerFlag"
* "CheckLibraryExists"
* "CheckOBJCCompilerFlag"
* "CheckOBJCSourceCompiles"
* "CheckOBJCSourceRuns"
* "CheckOBJCXXCompilerFlag"
* "CheckOBJCXXSourceCompiles"
* "CheckOBJCXXSourceRuns"
* "CheckPrototypeDefinition"
* "CheckSourceCompiles"
* "CheckSourceRuns"
* "CheckStructHasMember"
* "CheckSymbolExists"
* "CheckTypeSize"
* "CheckVariableExists"
* The "CMakePackageConfigHelpers" module's
"generate_apple_platform_selection_file()" function gained support
for iOS Mac Catalyst.
* The "GoogleTest" module "gtest_discover_tests()" command gained a
new "DISCOVERY_EXTRA_ARGS" keyword. It allows extra arguments to be
appended to the command line when querying for the list of tests.
* The "FindCUDAToolkit" module now provides a "CUDA::nvml_static"
target.
* The "FindOpenMP" module gained support for the "CUDA" language.
CTest
-----
* The "ctest_submit()" command and "ctest -T Submit" step now verify
TLS server certificates for connections to "https://" URLs by
default. See the "CTEST_TLS_VERIFY" variable for details.
* The "ctest_submit()" command and "ctest -T Submit" step now require
TLS 1.2 or higher for connections to "https://" URLs by default.
See the "CTEST_TLS_VERSION" variable for details.
CPack
-----
* The "CPack DEB Generator" gained a "CPACK_DEBIAN_PACKAGE_MULTIARCH"
option to support multi-arch packages.
* The "CPack IFW Generator" gained the new
"CPACK_IFW_PACKAGE_PRODUCT_IMAGE_URLS" variable to specify images
associated with entries of "CPACK_IFW_PACKAGE_PRODUCT_IMAGES". This
feature is available for QtIFW 4.0 and newer.
* The "CPack RPM Generator" gained support for "zstd" as a
"CPACK_RPM_COMPRESSION_TYPE" value.
* The "CPack" module enables per-machine installation by default in
the "CPack WIX Generator". See policy "CMP0172" and the
"CPACK_WIX_INSTALL_SCOPE" variable.
Deprecated and Removed Features
===============================
* Compatibility with versions of CMake older than 3.10 is now
deprecated and will be removed from a future version. Calls to
"cmake_minimum_required()" or "cmake_policy()" that set the policy
version to an older value now issue a deprecation diagnostic.
* The "CMakeFindFrameworks" module has been deprecated via "CMP0173".
Projects should use "find_library()" instead.
* The "Visual Studio 12 2013" generator has been removed.
Other Changes
=============
* When static libraries on link lines are de-duplicated (by policy
"CMP0156"), the first occurrence is now kept on all platforms. See
policy "CMP0179".
* Empty list elements in the "TEST_LAUNCHER" and
"CROSSCOMPILING_EMULATOR" target properties are now preserved by:
* The "add_test()" command.
* The "ExternalData_Add_Test()" command from the "ExternalData"
module.
* The "gtest_add_tests()" and "gtest_discover_tests()" commands from
the "GoogleTest" module. Empty list elements after the
"EXTRA_ARGS" keyword of these two commands are also now preserved.
See policy "CMP0178".
* The "execute_process()" command's "ENCODING" option, meaningful on
Windows, now defaults to "UTF-8". See policy "CMP0176".
* The "file(DOWNLOAD)" and "file(UPLOAD)" commands now verify TLS
server certificates for connections to "https://" URLs by default.
See the "CMAKE_TLS_VERIFY" variable for details. This change was
made without a policy so that users are protected even when building
projects that have not been updated. Users may set the
"CMAKE_TLS_VERIFY" environment variable to "0" to restore the old
default.
* The "file(DOWNLOAD)" and "file(UPLOAD)" commands now require TLS 1.2
or higher for connections to "https://" URLs by default. See the
"CMAKE_TLS_VERSION" variable for details.
* The "file(GET_RUNTIME_DEPENDENCIES)" command was updated to more
closely match the dynamic loader's behavior on Linux.
* The "install()" command's "DESTINATION" arguments are now
normalized, with the exception of "INCLUDES DESTINATION" arguments
in "install(TARGETS)". See policy "CMP0177".
* The "project()" command now always sets "<PROJECT-NAME>_SOURCE_DIR",
"<PROJECT-NAME>_BINARY_DIR", and "<PROJECT-NAME>_IS_TOP_LEVEL" as
both normal variables and cache entries. See policy "CMP0180".
* The "cmake_parse_arguments(PARSE_ARGV)" command now defines a
variable for an empty string after a single-value keyword. See
policy "CMP0174".
----------------------------------------------------------------------------
Changes made since CMake 3.31.0-rc2:
Aditya Vidyadhar Kamath (1):
Help: Update AIX_SHARED_LIBRARY_ARCHIVE for versioned shared objects
Alex Turbov (1):
bash-completion: Complete a workflow name after the --workflow option
Brad King (18):
ci: Host our own URL to test expected TLS_VERSION failure
Help: Clarify LINK_LIBRARIES_STRATEGY follow-up de-duplication
LFortran: Improve detection of implicit link information for
lfortran 0.40+
codespell: Fix typos
clang-tidy: ignore warnings new in version 19
Tests: Update FindBoost.TestPython for Python 3.13 and 3.14
LINK_LIBRARIES_STRATEGY: Rename strategies to clarify expectations
Tests: Fix FILE stream leaks in helper programs
Tests/RunCMake/BuildDepends: Skip LinkDepends with broken GNU ld 2.43
Utilities/Sphinx: Tell linkcheck to not treat timeouts as broken
KWSys: SystemInformation: Add missing EOF check when reading /proc/cpuinfo
cmStringAlgorithms: Fix core.NonNullParamChecker diagnostic in cmAlphaNum
CTestCustom: Suppress clang-analyzer warning in libuv
ci: Run Fedora + Makefiles job on x86_64-v3 hosts for mpich+libfabric
ci: update Linux image to Fedora 41
ci: use Fedora 41 images and environments
ci: Restore cmake.org html documentation search results for index entries
CMake 3.31.0-rc3
Craig Scott (2):
Help: Move LINK_LIBRARIES_STRATEGY details to target property docs
cmake_parse_arguments: Restore capture of value after repeated keyword
Joseph Snyder (1):
WindowsKernelModeDriver: Switch to appending to variables
Marc Chevrier (2):
Linker configuration: enhance usability
Help: Update note relative the GNU binutils linkers
Matthew Woehlke (2):
cmExportPackageInfoGenerator: Fix version properties
Help: Fix find_package search order w.r.t. globs
Miro Hrončok (1):
FindPython: Add support for Python 3.14
Peter Kokot (1):
Help: Add 3.31 release note for cmake_parse_arguments CMP0174
Robert Maynard (2):
Tests: Simplify CUDA kernels avoid crash with nvidia driver 550
Tests: Ensure CUDA bin2c output is null terminated
Seth R Johnson (1):
FindCUDAToolkit: Remove debug message
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