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CMake 3.10 Release Notes
************************
.. only:: html
.. contents::
Changes made since CMake 3.9 include the following.
* A :prop_tgt:`<LANG>_CPPCHECK` target property and supporting
:variable:`CMAKE_<LANG>_CPPCHECK` variable were introduced to tell
the :ref:`Makefile Generators` and the :generator:`Ninja` generator to
run ``cppcheck`` with the compiler for ``C`` and ``CXX`` languages.
* Source file properties :prop_sf:`VS_SHADER_OUTPUT_HEADER_FILE` and
:prop_sf:`VS_SHADER_VARIABLE_NAME` have been added to specify more
details of ``.hlsl`` sources with :ref:`Visual Studio Generators`.
* When using :prop_tgt:`AUTOMOC` or :prop_tgt:`AUTOUIC` with a
multi configuration generator (e.g. :generator:`Xcode`),
included ``*.moc``, ``moc_*.cpp`` and ``ui_*.h`` files are generated in
``<AUTOGEN_BUILD_DIR>/include_<CONFIG>`` instead of
``<AUTOGEN_BUILD_DIR>/include``.
* When using :prop_tgt:`AUTOMOC` or :prop_tgt:`AUTOUIC`,
source files that are :prop_sf:`GENERATED` will be processed as well.
They were ignored by :prop_tgt:`AUTOMOC` and :prop_tgt:`AUTOUIC`
in earlier releases.
See policy :policy:`CMP0071`.
* When using :prop_tgt:`AUTOMOC`, CMake searches for the strings ``Q_OBJECT``,
``Q_GADGET`` or ``Q_NAMESPACE`` in a source file to determine if it needs
to be ``moc`` processed. The new variable
:variable:`CMAKE_AUTOMOC_MACRO_NAMES` allows to register additional
strings (macro names) so search for.
* When using :prop_tgt:`AUTOMOC`, CMake searches for the strings ``Q_OBJECT``,
``Q_GADGET`` or ``Q_NAMESPACE`` in a source file to determine if it needs
to be ``moc`` processed. The new target property
:prop_tgt:`AUTOMOC_MACRO_NAMES` allows to register additional strings
(macro names) so search for.
* When using :prop_tgt:`AUTOMOC`, the new variable
:variable:`CMAKE_AUTOMOC_COMPILER_PREDEFINES` allows to default
enable or disable the generation of the compiler pre definitions file
``moc_predefs.h``.
* When using :prop_tgt:`AUTOMOC`, the new boolean target property
:prop_tgt:`AUTOMOC_COMPILER_PREDEFINES` allows to enable or disable the
generation of the compiler pre definitions file ``moc_predefs.h``.
* Added sha1sum, sha224sum, sha256sum, sha384sum and sha512sum
as an equivalent to existing md5sum to cmake command mode.
* The :command:`cmake_host_system_information` command learned more keys
to get information about the processor capabilities and the host OS
version.
* A :variable:`CMAKE_CODEBLOCKS_EXCLUDE_EXTERNAL_FILES` variable was added
to tell the :generator:`CodeBlocks` extra generator to exclude files
from outside the project root directory from the generated project files.
* CPack gained a ``FREEBSD`` generator for FreeBSD ``pkg(8)``, configured
by the :module:`CPackFreeBSD` module.
* The :module:`CPackIFW` module :command:`cpack_ifw_configure_component` and
:command:`cpack_ifw_configure_component_group` commands gained a new
``REPLACES`` and ``CHECKABLE`` options.
* The :module:`CPackIFW` module gained new
:variable:`CPACK_IFW_PACKAGE_FILE_EXTENSION` variable to customize
target binary format.
* The :module:`CPackIFW` module gained new
:variable:`CPACK_IFW_REPOSITORIES_DIRECTORIES` variable to specify
additional repositories dirs that will be used to resolve and
repack dependent components. This feature available only
since QtIFW 3.1.
* Modules :module:`CPackRPM` and :module:`CPackDeb` learned to set package epoch
version.
See :variable:`CPACK_RPM_PACKAGE_EPOCH` and
:variable:`CPACK_DEBIAN_PACKAGE_EPOCH` variables.
* The :module:`CPackDeb` module learned to set package release version in
`Version` info property.
See :variable:`CPACK_DEBIAN_PACKAGE_RELEASE` variable.
* The :module:`CPackDeb` module learned more strict package version checking
that complies with Debian rules.
* The :ref:`Makefile Generators` and the :generator:`Ninja` generator learned
to add compiler launcher tools like ccache along with the compiler for the
``CUDA`` language (``C`` and ``CXX`` were supported previously). See the
:variable:`CMAKE_<LANG>_COMPILER_LAUNCHER` variable and
:prop_tgt:`<LANG>_COMPILER_LAUNCHER` target property for details.
* The CPack ``DEB`` generator, configured by the :module:`CPackDeb` module,
was enabled on Windows. While not fully featured (due to the lack of
external UNIX tools) this will allow building basic cross-platform Debian
packages.
* Support for building CMake on HP-UX has been dropped pending better
support for C++11 and a port of libuv. See `CMake Issue 17137`_.
Use CMake 3.9 or lower instead for HP-UX support.
.. _`CMake Issue 17137`: https://gitlab.kitware.com/cmake/cmake/issues/17137
* The :command:`execute_process` command gained a ``RESULTS_VARIABLE``
option to collect a list of results from all children in a pipeline
of processes when multiple ``COMMAND`` arguments are given.
* The :command:`file(GENERATE)` command now interprets relative paths
given to its ``OUTPUT`` and ``INPUT`` arguments with respect to the
caller's current binary and source directories, respectively.
See policy :policy:`CMP0070`.
* The :module:`FindCurses` module gained a ``CURSES_NEED_WIDE`` option
to request the wide-character variant.
* The :module:`FindEXPAT` module now provides imported targets.
* The :module:`FindFreetype` module now provides imported targets.
* :module:`FindMPI` gained a number of new features, including:
* Language-specific components have been added to the module.
* Many more MPI environments are now supported.
* The environmental support for Fortran has been improved.
* A user now has fine-grained control over the MPI selection process,
including passing custom parameters to the MPI compiler.
* The version of the implemented MPI standard is now being exposed.
* MPI-2 C++ bindings can now be detected and also suppressed if so desired.
* The available Fortran bindings are now being detected and verified.
* Various MPI-3 information can be requested, including the library version
and Fortran capabilities of the individual bindings.
* Statically linked MPI implementations are supported.
* A :module:`FindOpenACC` module was added to detect compiler support
for OpenACC. Currently only supports PGI, GNU and Cray compilers.
* The :module:`FindOpenGL` module gained support for GLVND on Linux.
* The :module:`FindOpenMP` module gained support for
language-specific components.
* A :module:`FindPatch` module was added to find the ``patch``
command-line executable.
* The `flang`_ Fortran compiler is now supported, with compiler id ``Flang``.
.. _`flang`: https://github.com/flang-compiler/flang
* On FreeBSD the C++ compiler named ``c++`` is now the preferred default.
* The :command:`get_filename_component` ``PROGRAM`` mode semantics
have been revised to not tolerate unquoted spaces in the path
to the program while also accepting arguments. While technically
incompatible with the old behavior, it is expected that behavior
under typical use cases with properly-quoted command-lines has
not changed.
* The :module:`GoogleTest` module gained a new command
:command:`gtest_discover_tests` implementing dynamic (build-time) test
discovery. Unlike the source parsing approach, dynamic discovery executes
the test (in 'list available tests' mode) at build time to discover tests.
This is robust against unusual ways of labeling tests, provides much better
support for advanced features such as parameterized tests, and does not
require re-running CMake to discover added or removed tests within a test
executable.
* The graphviz output now distinguishes between the different dependency types
``PUBLIC``, ``PRIVATE`` and ``INTERFACE`` and represents them in the output graph
as solid, dashed and dotted edges.
* Support for the IAR ARM Compiler was improved.
* The :command:`include_guard` command was introduced to allow guarding
CMake scripts from being included more than once. The command supports
``DIRECTORY`` and ``GLOBAL`` options to adjust the corresponding include guard
scope. If no options given, include guard is similar to basic variable-based
check.
* The :command:`configure_file` command learned to support indented
``# cmakedefine`` and ``# cmakedefine01``. Spaces and/or tabs between
the ``#`` character and the ``cmakedefine``/``cmakedefine01`` words
are now understood and preserved in the output.
* The :module:`InstallRequiredSystemLibraries` gained support for installing
Intel compiler runtimes.
* A :variable:`CTEST_LABELS_FOR_SUBPROJECTS` CTest module variable and CTest
script variable was added to specify a list of labels that should be treated
as subprojects by CDash. To use this value in both the CTest module and the
ctest command line `Dashboard Client` mode (e.g. ctest -S) set it in the
CTestConfig.cmake config file.
* A :prop_dir:`LABELS` directory property was added to specify labels
for all targets and tests in a directory.
* A :variable:`CMAKE_DIRECTORY_LABELS` variable was added to specify
labels for all tests in a directory.
* A new minimal platform file for ``Midipix`` was added.
* Support for the MSVC ARM64 architecture was added.
Visual Studio 2017 Update 4 and above offer an ARM64 toolchain.
* The :module:`FindProtobuf` module :command:`protobuf_generate_cpp` command
gained a ``DESCRIPTORS`` option to generate descriptor files.
* Support for building CMake itself with C++98 compilers was dropped.
CMake is now implemented using C++11.
* The :command:`string` command learned a new ``PREPEND`` subcommand.
* A :prop_dir:`TEST_INCLUDE_FILES` directory property was added to
list any number of files to be included when running tests with
:manual:`ctest(1)`. This generalizes the :prop_dir:`TEST_INCLUDE_FILE`
property.
* The :command:`string(TIMESTAMP)` command now supports ``%A``
for full weekday name and ``%B`` for full month name.
* The :prop_tgt:`VS_DOTNET_REFERENCEPROP_<refname>_TAG_<tagname>`
target property was added to support custom XML tags for reference
assemblies in C# targets.
|
