1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
CMake 3.26 Release Notes
************************
.. only:: html
.. contents::
Changes made since CMake 3.25 include the following.
New Features
============
Languages
---------
* The ``ASM_MARMASM`` language was added to support the
Microsoft ARM assembler language.
Command-Line
------------
* The :option:`cmake -E copy <cmake-E copy>` command-line tool now
supports a ``-t`` argument.
* The :option:`cmake -E copy_directory_if_different
<cmake-E copy_directory_if_different>` command-line tool was added.
Configure Log
-------------
* CMake now writes a YAML log of configure-time checks to
``CMakeFiles/CMakeConfigureLog.yaml`` under the top of the build tree.
See the :manual:`cmake-configure-log(7)` manual.
File-Based API
--------------
* The :manual:`cmake-file-api(7)` "codemodel" version 2 ``version`` field has
been updated to 2.5.
* The :manual:`cmake-file-api(7)` "codemodel" version 2 "target" object
gained a new ``fileSets`` field and associated ``fileSetIndex``
field to ``sources`` objects.
* The :manual:`cmake-file-api(7)` gained a new "configureLog" object kind
that enables stable access to the :manual:`cmake-configure-log(7)`.
Commands
--------
* The :command:`add_custom_command` and :command:`add_custom_target` commands
now support :manual:`generator expressions <cmake-generator-expressions(7)>`
in their ``COMMENT`` option.
* The :command:`message` command gained a ``CONFIGURE_LOG`` mode to
record an entry in the :manual:`cmake-configure-log(7)`.
* The :command:`string(TIMESTAMP)` and :command:`file(TIMESTAMP)` commands
now support the ``%z`` and ``%Z`` specifiers for the time zone.
* The :command:`try_compile` and :command:`try_run` commands gained
a ``LOG_DESCRIPTION`` option specifying text to be recorded in the
:manual:`cmake-configure-log(7)`.
* The :command:`try_compile` and :command:`try_run` commands gained a
``NO_LOG`` option to skip recording a :manual:`cmake-configure-log(7)`
entry.
Variables
---------
* The :variable:`CMAKE_<LANG>_COMPILER_FRONTEND_VARIANT` variable is now
set for ``GNU``, ``MSVC``, and ``AppleClang`` compilers that have only
one frontend variant.
* A :variable:`CMAKE_VS_VERSION_BUILD_NUMBER` variable is now set by
:ref:`Visual Studio Generators` for VS 2017 and above to report the
four-component Visual Studio version number.
Properties
----------
* The :prop_tgt:`<LANG>_CLANG_TIDY_EXPORT_FIXES_DIR` target property was
added to allow the ``clang-tidy`` tool to export its suggested fixes to a
set of ``.yaml`` files. A new
:variable:`CMAKE_<LANG>_CLANG_TIDY_EXPORT_FIXES_DIR` variable was created to
initialize this property.
* The :prop_tgt:`XCODE_EMBED_EXTENSIONKIT_EXTENSIONS <XCODE_EMBED_<type>>`
target property was added to tell the :generator:`Xcode` generator to
ExtensionKit-based extensions such as extensions using the Background
Assets framework. Aspects of the embedding can be customized with:
* :prop_tgt:`XCODE_EMBED_EXTENSIONKIT_EXTENSIONS_PATH <XCODE_EMBED_<type>>`
* :prop_tgt:`XCODE_EMBED_EXTENSIONKIT_EXTENSIONS_CODE_SIGN_ON_COPY <XCODE_EMBED_<type>_CODE_SIGN_ON_COPY>`
* :prop_tgt:`XCODE_EMBED_EXTENSIONKIT_EXTENSIONS_REMOVE_HEADERS_ON_COPY <XCODE_EMBED_<type>_REMOVE_HEADERS_ON_COPY>`
Modules
-------
* The :module:`ExternalProject` module :command:`ExternalProject_Add` command
gained an ``INSTALL_BYPRODUCTS`` option to specify files generated by the
``install`` step.
* The :module:`FindCUDAToolkit` module:
* gained support for the ``sbsa-linux`` cross compilation target, and
* now provides an imported target for ``nvrtc_static``, if found.
* The :module:`FindImageMagick` module now provides imported targets.
* The :module:`FindPython3` and :module:`FindPython` modules gained
support for the `Stable Application Binary Interface`_.
* The :module:`UseSWIG` module gained the support for the ``perl5`` language.
.. _`Stable Application Binary Interface`: https://docs.python.org/3/c-api/stable.html
Generator Expressions
---------------------
* The :genex:`$<BUILD_LOCAL_INTERFACE:...>` generator expression was added to
prevent usage requirements from being exported to dependent projects.
CTest
-----
* The :envvar:`CTEST_NO_TESTS_ACTION` environment variable was added to
provide a default value for the
:option:`--no-tests=\<action\> <ctest --no-tests>` command line
argument of :manual:`ctest(1)`.
Deprecated and Removed Features
===============================
* The ``CMakeFiles/CMakeOutput.log`` and ``CMakeFiles/CMakeError.log``
files are no longer populated by CMake's builtin modules, and
:manual:`cmake(1)` no longer suggests looking at them after a
``CMake Error`` occurs. Information previously logged to those
files is instead logged to ``CMakeFiles/CMakeConfigureLog.yaml``,
the :manual:`cmake-configure-log(7)`.
* On CYGWIN, the undocumented ``CMAKE_LEGACY_CYGWIN_WIN32`` mode for
compatibility with CMake versions older than 2.8.4 has been removed.
Other Changes
=============
* :ref:`Language Standard Flags`, such as ``-std=c++11``, when generated due
to :command:`target_compile_features` or :variable:`CMAKE_<LANG>_STANDARD`,
are now placed before flags added by :command:`target_compile_options`,
rather than after them.
* For all ``COMPILE_DEFINITIONS`` properties, any leading ``-D`` on an item
is removed whether or not it was specified by a generator expression.
* The ``compile_commands.json`` database enabled by
:variable:`CMAKE_EXPORT_COMPILE_COMMANDS` now provides the ``output``
field in the compile commands objects. This allows multi-config
generators, such as the :generator:`Ninja Multi-Config` generator,
to provide the compile commands for all configurations.
* The :prop_gbl:`USE_FOLDERS` global property is treated as ``ON`` by default.
See policy :policy:`CMP0143`.
* The top-level :command:`project` call will now emit an author warning if the
documented command order in relation to :command:`cmake_minimum_required` is
not respected.
* The :option:`cmake --trace` option now follows :command:`try_compile` and
:command:`try_run` invocations.
|
