You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
3.8 KiB
91 lines
3.8 KiB
project
|
|
-------
|
|
|
|
Sets project details such as name, version, etc. and enables languages.
|
|
|
|
.. code-block:: cmake
|
|
|
|
project(<PROJECT-NAME> [LANGUAGES] [<language-name>...])
|
|
project(<PROJECT-NAME>
|
|
[VERSION <major>[.<minor>[.<patch>[.<tweak>]]]]
|
|
[DESCRIPTION <project-description-string>]
|
|
[HOMEPAGE_URL <url-string>]
|
|
[LANGUAGES <language-name>...])
|
|
|
|
Sets the name of the project and stores the name in the
|
|
:variable:`PROJECT_NAME` variable. Additionally this sets variables
|
|
|
|
* :variable:`PROJECT_SOURCE_DIR`,
|
|
:variable:`<PROJECT-NAME>_SOURCE_DIR`
|
|
* :variable:`PROJECT_BINARY_DIR`,
|
|
:variable:`<PROJECT-NAME>_BINARY_DIR`
|
|
|
|
If ``VERSION`` is specified, given components must be non-negative integers.
|
|
If ``VERSION`` is not specified, the default version is the empty string.
|
|
The ``VERSION`` option may not be used unless policy :policy:`CMP0048` is
|
|
set to ``NEW``.
|
|
|
|
The :command:`project()` command stores the version number and its components
|
|
in variables
|
|
|
|
* :variable:`PROJECT_VERSION`,
|
|
:variable:`<PROJECT-NAME>_VERSION`
|
|
* :variable:`PROJECT_VERSION_MAJOR`,
|
|
:variable:`<PROJECT-NAME>_VERSION_MAJOR`
|
|
* :variable:`PROJECT_VERSION_MINOR`,
|
|
:variable:`<PROJECT-NAME>_VERSION_MINOR`
|
|
* :variable:`PROJECT_VERSION_PATCH`,
|
|
:variable:`<PROJECT-NAME>_VERSION_PATCH`
|
|
* :variable:`PROJECT_VERSION_TWEAK`,
|
|
:variable:`<PROJECT-NAME>_VERSION_TWEAK`
|
|
|
|
Variables corresponding to unspecified versions are set to the empty string
|
|
(if policy :policy:`CMP0048` is set to ``NEW``).
|
|
|
|
If the optional ``DESCRIPTION`` is given, then :variable:`PROJECT_DESCRIPTION`
|
|
and :variable:`<PROJECT-NAME>_DESCRIPTION` will be set to its argument.
|
|
These variables will be cleared if ``DESCRIPTION`` is not given.
|
|
The description is expected to be a relatively short string, usually no more
|
|
than a few words.
|
|
|
|
The optional ``HOMEPAGE_URL`` sets the analogous variables
|
|
:variable:`PROJECT_HOMEPAGE_URL` and :variable:`<PROJECT-NAME>_HOMEPAGE_URL`.
|
|
When this option is given, the URL provided should be the canonical home for
|
|
the project.
|
|
These variables will be cleared if ``HOMEPAGE_URL`` is not given.
|
|
|
|
Note that the description and homepage URL may be used as defaults for
|
|
things like packaging meta-data, documentation, etc.
|
|
|
|
Optionally you can specify which languages your project supports.
|
|
Example languages include ``C``, ``CXX`` (i.e. C++), ``CUDA``,
|
|
``Fortran``, and ``ASM``.
|
|
By default ``C`` and ``CXX`` are enabled if no language options are
|
|
given. Specify language ``NONE``, or use the ``LANGUAGES`` keyword
|
|
and list no languages, to skip enabling any languages.
|
|
|
|
If enabling ``ASM``, list it last so that CMake can check whether
|
|
compilers for other languages like ``C`` work for assembly too.
|
|
|
|
If a variable exists called :variable:`CMAKE_PROJECT_<PROJECT-NAME>_INCLUDE`,
|
|
the file pointed to by that variable will be included as the last step of the
|
|
project command.
|
|
|
|
The top-level ``CMakeLists.txt`` file for a project must contain a
|
|
literal, direct call to the :command:`project` command; loading one
|
|
through the :command:`include` command is not sufficient. If no such
|
|
call exists CMake will implicitly add one to the top that enables the
|
|
default languages (``C`` and ``CXX``). The name of the project set in
|
|
the top level ``CMakeLists.txt`` file is available from the
|
|
:variable:`CMAKE_PROJECT_NAME` variable, its description from
|
|
:variable:`CMAKE_PROJECT_DESCRIPTION`, its homepage URL from
|
|
:variable:`CMAKE_PROJECT_HOMEPAGE_URL` and its version from
|
|
:variable:`CMAKE_PROJECT_VERSION`.
|
|
|
|
.. note::
|
|
Call the :command:`cmake_minimum_required` command at the beginning
|
|
of the top-level ``CMakeLists.txt`` file even before calling the
|
|
``project()`` command. It is important to establish version and
|
|
policy settings before invoking other commands whose behavior they
|
|
may affect. See also policy :policy:`CMP0000`.
|