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diff --git a/share/cmake-3.16/Help/release/3.12.rst b/share/cmake-3.16/Help/release/3.12.rst new file mode 100644 index 0000000..481027e --- /dev/null +++ b/share/cmake-3.16/Help/release/3.12.rst @@ -0,0 +1,305 @@ +CMake 3.12 Release Notes +************************ + +.. only:: html + + .. contents:: + +Changes made since CMake 3.11 include the following. + +New Features +============ + +Generators +---------- + +* The :ref:`Visual Studio Generators` for VS 2017 learned to support a + ``version=14.##`` option in the :variable:`CMAKE_GENERATOR_TOOLSET` + value (e.g. via the :manual:`cmake(1)` ``-T`` option) to specify a + toolset version number. + +Command-Line +------------ + +* The :manual:`cmake(1)` :ref:`Build Tool Mode` (``cmake --build``) gained + ``--parallel [<jobs>]`` and ``-j [<jobs>]`` options to specify a parallel + build level. They map to corresponding options of the native build tool. + +Commands +-------- + +* The :command:`add_compile_definitions` command was added to set preprocessor + definitions at directory level. This supersedes :command:`add_definitions`. + +* The :command:`cmake_minimum_required` and :command:`cmake_policy(VERSION)` + commands now accept a version range using the form ``<min>[...<max>]``. + The ``<min>`` version is required but policies are set based on the + older of the running CMake version and the version specified by + ``<max>``. This allows projects to specify a range of versions + for which they have been updated and avoid explicit policy settings. + +* The :command:`file(GLOB)` and :command:`file(GLOB_RECURSE)` commands + learned a new flag ``CONFIGURE_DEPENDS`` which enables expression of + build system dependency on globbed directory's contents. + +* The :command:`file(TOUCH)` and :command:`file(TOUCH_NOCREATE)` commands + were added to expose ``TOUCH`` functionality without having to use + CMake's command-line tool mode with :command:`execute_process`. + +* The :command:`find_package` command now searches prefixes specified by + the :variable:`<PackageName>_ROOT` CMake variable and the + :envvar:`<PackageName>_ROOT` environment variable. Package roots are + maintained as a stack so nested calls to all ``find_*`` commands inside + find modules also search the roots as prefixes. + See policy :policy:`CMP0074`. + +* The :command:`install` command learned an optional ``NAMELINK_COMPONENT`` + parameter, which allows you to change the component for a shared library's + namelink. If none is specified, the value of ``COMPONENT`` is used by + default. + +* The :command:`list` command learned a ``JOIN`` sub-command + to concatenate list's elements separated by a glue string. + +* The :command:`list` command learned a ``SUBLIST`` sub-command + to get a sublist of the list. + +* The :command:`list` command learned a ``TRANSFORM`` sub-command + to apply various string transformation to list's elements. + +* The :command:`project` command learned an optional ``HOMEPAGE_URL`` + parameter which has the effect of setting variables like + :variable:`PROJECT_HOMEPAGE_URL`, :variable:`<PROJECT-NAME>_HOMEPAGE_URL` + and :variable:`CMAKE_PROJECT_HOMEPAGE_URL`. + +* The :command:`string` command learned a ``JOIN`` sub-command + to concatenate input strings separated by a glue string. + +* :command:`target_compile_options` and :command:`add_compile_options` + commands gained a ``SHELL:`` prefix to specify a group of related + options using shell-like quoting. + +* The :command:`target_link_libraries` command now supports + :ref:`Object Libraries`. Linking to an object library uses its object + files in direct dependents and also propagates usage requirements. + +Variables +--------- + +* The :variable:`CMAKE_FOLDER` variable was added to initialize the + :prop_tgt:`FOLDER` property on all targets. + +* The :variable:`CMAKE_DOTNET_TARGET_FRAMEWORK_VERSION` variable + was defined to initialize all + :prop_tgt:`DOTNET_TARGET_FRAMEWORK_VERSION` target properties. + +* ``CMAKE_PROJECT_VERSION*`` variables have been introduced: + + - :variable:`CMAKE_PROJECT_VERSION` + - :variable:`CMAKE_PROJECT_VERSION_MAJOR` + - :variable:`CMAKE_PROJECT_VERSION_MINOR` + - :variable:`CMAKE_PROJECT_VERSION_PATCH` + - :variable:`CMAKE_PROJECT_VERSION_TWEAK` + +* The :variable:`CMAKE_SUPPRESS_REGENERATION` variable was extended to + support the :generator:`Ninja` and :ref:`Makefile Generators`. + It is also now documented. + +* ``CMAKE_VS_SDK_*_DIRECTORIES`` variables were defined to tell + :ref:`Visual Studio Generators` for VS 2010 and above how to populate + fields in ``.vcxproj`` files that specify SDK directories. The + variables are: + + - :variable:`CMAKE_VS_SDK_EXCLUDE_DIRECTORIES` + - :variable:`CMAKE_VS_SDK_EXECUTABLE_DIRECTORIES` + - :variable:`CMAKE_VS_SDK_INCLUDE_DIRECTORIES` + - :variable:`CMAKE_VS_SDK_LIBRARY_DIRECTORIES` + - :variable:`CMAKE_VS_SDK_LIBRARY_WINRT_DIRECTORIES` + - :variable:`CMAKE_VS_SDK_REFERENCE_DIRECTORIES` + - :variable:`CMAKE_VS_SDK_SOURCE_DIRECTORIES` + +* A :variable:`MSVC_TOOLSET_VERSION` variable was added to provide the + MSVC toolset version associated with the current MSVC compiler version + in :variable:`MSVC_VERSION`. + +Properties +---------- + +* The :prop_tgt:`COMMON_LANGUAGE_RUNTIME` target property was introduced + to configure the use of managed C++ for :ref:`Visual Studio Generators` + for VS 2010 and above. + A corresponding :prop_tgt:`IMPORTED_COMMON_LANGUAGE_RUNTIME` target + property was added to support ``C++/CLI`` for imported targets. + +* The :prop_tgt:`DOTNET_TARGET_FRAMEWORK_VERSION` target property + was introduced as replacement for + :prop_tgt:`VS_DOTNET_TARGET_FRAMEWORK_VERSION`, which is considered + deprecated now. + +* An :prop_tgt:`EXPORT_PROPERTIES` target property was added to specify a + custom list of target properties to include in targets exported by the + :command:`install(EXPORT)` and :command:`export` commands. + +* The :prop_tgt:`PDB_OUTPUT_DIRECTORY` property learned to support + :manual:`generator expressions <cmake-generator-expressions(7)>`. + +* A :prop_dir:`TESTS` directory property was added to hold the list of + tests defined by the :command:`add_test` command. + +* A :prop_tgt:`VS_DEBUGGER_COMMAND` target property was created to set the + debugging command line with :ref:`Visual Studio Generators` for VS 2010 + and above. + +* HLSL source file properties :prop_sf:`VS_SHADER_DISABLE_OPTIMIZATIONS` + and :prop_sf:`VS_SHADER_ENABLE_DEBUG` gained support for generator + expressions. + +* HLSL source file property :prop_sf:`VS_SHADER_OBJECT_FILE_NAME` has been + added to the :ref:`Visual Studio Generators` for VS 2010 and above. + The property specifies the file name of the compiled shader object. + +Modules +------- + +* The :module:`FindALSA` module now provides imported targets. + +* The :module:`FindCURL` module now provides imported targets. + +* The :module:`FindJPEG` module now provides imported targets. + +* The :module:`FindLibXml2` module now provides imported targets. + +* The :module:`FindMatlab` module now supports the Matlab Runtime + Compiler (MCR) for compiling and linking matlab extensions. + +* A :module:`FindODBC` module was added to find an Open Database Connectivity + (ODBC) library. + +* The :module:`FindPkgConfig` module has learned to export the found + libraries with full path for direct consumption with the + :command:`target_link_libraries` command. + +* New :module:`FindPython3` and :module:`FindPython2` modules, as well as + a new :module:`FindPython` module, have been added to provide a new way + to locate python environments. + +* The :module:`UseSWIG` module gained a whole refresh and is now more + consistent with standard CMake commands to generate libraries and is + fully configurable through properties. + +* The :module:`UseSWIG` module learned to manage multiple behaviors through + ``UseSWIG_MODULE_VERSION`` variable to ensure legacy support as well as more + robust handling of ``SWIG`` advanced features (like ``%template``). + +* The :module:`UseSWIG` module learned to support CSHARP variant + wrapper files. + +* The :module:`WriteCompilerDetectionHeader` module gained a ``BARE_FEATURES`` + option to add a compatibility define for the exact keyword of a new language + feature. + +Generator Expressions +--------------------- + +* A new ``$<GENEX_EVAL:...>`` and ``$<TARGET_GENEX_EVAL:target,...>`` + :manual:`generator expression <cmake-generator-expressions(7)>` + has been added to enable consumption of generator expressions whose + evaluation results itself in generator expressions. + +* A new ``$<IN_LIST:...>`` + :manual:`generator expression <cmake-generator-expressions(7)>` + has been added. + +* A new ``$<TARGET_EXISTS:...>`` + :manual:`generator expression <cmake-generator-expressions(7)>` + has been added. + +* A new ``$<TARGET_NAME_IF_EXISTS:...>`` + :manual:`generator expression <cmake-generator-expressions(7)>` + has been added. + +CTest +----- + +* The :command:`ctest_start` command has been reworked so that you can simply + call ``ctest_start(APPEND)`` and it will read all the needed information from + the TAG file. The argument parsing has also been relaxed so that the order of + the arguments is less significant. + +* A :prop_test:`PROCESSOR_AFFINITY` test property was added to request + that CTest run a test with CPU affinity for a set of processors + disjoint from other concurrently running tests with the property set. + +CPack +----- + +* The :module:`CPack` module now uses variables + :variable:`CMAKE_PROJECT_VERSION_MAJOR`, + :variable:`CMAKE_PROJECT_VERSION_MINOR` and + :variable:`CMAKE_PROJECT_VERSION_PATCH` + to initialize corresponding CPack variables. + +* A :cpack_gen:`CPack NuGet Generator` was was added with basic + support for `NuGet`_. + +.. _NuGet: https://docs.microsoft.com/en-us/nuget/what-is-nuget + +Other +----- + +* The :manual:`Compile Features <cmake-compile-features(7)>` functionality + is now aware of C++ 20. No specific features are yet enumerated besides + the ``cxx_std_20`` meta-feature. + +* The :manual:`Compile Features <cmake-compile-features(7)>` functionality + is now aware of the availability of C features in MSVC since VS 2010. + +* The :manual:`Compile Features <cmake-compile-features(7)>` functionality + is now aware of C language standards supported by Texas Instruments C + compilers. + +Deprecated and Removed Features +=============================== + +* The :generator:`Visual Studio 8 2005` generator has been removed. + +* CMake no longer produces ``<tgt>_LIB_DEPENDS`` cache entries + for library targets. See policy :policy:`CMP0073`. + +Other Changes +============= + +* Include flags for directories marked as ``SYSTEM`` are now moved after + non-system directories. The ``-isystem`` flag does this automatically, + so moving them explicitly to the end makes the behavior consistent on + compilers that do not have any ``-isystem`` flag. + +* Fortran dependency scanning now supports dependencies implied by + `Fortran Submodules`_. + +* The existence and functionality of the file + ``${CMAKE_BINARY_DIR}/cmake_install.cmake`` has now been documented in the + :command:`install` documentation so that external packaging software can take + advantage of CPack-style component installs. + +* The :module:`CheckIncludeFile` module ``check_include_file`` macro + learned to honor the ``CMAKE_REQUIRED_LIBRARIES`` variable. + See policy :policy:`CMP0075`. + +* The :module:`CheckIncludeFileCXX` module ``check_include_file_cxx`` macro + learned to honor the ``CMAKE_REQUIRED_LIBRARIES`` variable. + See policy :policy:`CMP0075`. + +* The :module:`CheckIncludeFiles` module ``check_include_files`` macro + learned to honor the ``CMAKE_REQUIRED_LIBRARIES`` variable. + See policy :policy:`CMP0075`. + +* The :manual:`cmake(1)` ``-E copy_directory`` tool now fails when the + source directory does not exist. Previously it succeeded by creating + an empty destination directory. + +* The :module:`UseSWIG` module :command:`swig_add_library` command + (and legacy ``swig_add_module`` command) now set the prefix of + Java modules to ``""`` for MINGW, MSYS, and CYGWIN environments. + +.. _`Fortran Submodules`: http://fortranwiki.org/fortran/show/Submodules |