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58 lines
2.2 KiB
58 lines
2.2 KiB
project
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-------
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Set a name, version, and enable languages for the entire project.
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.. code-block:: cmake
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project(<PROJECT-NAME> [LANGUAGES] [<language-name>...])
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project(<PROJECT-NAME>
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[VERSION <major>[.<minor>[.<patch>[.<tweak>]]]]
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[LANGUAGES <language-name>...])
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Sets the name of the project and stores the name in the
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:variable:`PROJECT_NAME` variable. Additionally this sets variables
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* :variable:`PROJECT_SOURCE_DIR`,
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:variable:`<PROJECT-NAME>_SOURCE_DIR`
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* :variable:`PROJECT_BINARY_DIR`,
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:variable:`<PROJECT-NAME>_BINARY_DIR`
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If ``VERSION`` is specified, given components must be non-negative integers.
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If ``VERSION`` is not specified, the default version is the empty string.
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The ``VERSION`` option may not be used unless policy :policy:`CMP0048` is
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set to ``NEW``.
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The :command:`project()` command stores the version number and its components
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in variables
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* :variable:`PROJECT_VERSION`,
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:variable:`<PROJECT-NAME>_VERSION`
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* :variable:`PROJECT_VERSION_MAJOR`,
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:variable:`<PROJECT-NAME>_VERSION_MAJOR`
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* :variable:`PROJECT_VERSION_MINOR`,
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:variable:`<PROJECT-NAME>_VERSION_MINOR`
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* :variable:`PROJECT_VERSION_PATCH`,
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:variable:`<PROJECT-NAME>_VERSION_PATCH`
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* :variable:`PROJECT_VERSION_TWEAK`,
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:variable:`<PROJECT-NAME>_VERSION_TWEAK`
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Variables corresponding to unspecified versions are set to the empty string
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(if policy :policy:`CMP0048` is set to ``NEW``).
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Optionally you can specify which languages your project supports.
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Example languages are ``C``, ``CXX`` (i.e. C++), ``Fortran``, etc.
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By default ``C`` and ``CXX`` are enabled if no language options are
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given. Specify language ``NONE``, or use the ``LANGUAGES`` keyword
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and list no languages, to skip enabling any languages.
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If a variable exists called :variable:`CMAKE_PROJECT_<PROJECT-NAME>_INCLUDE`,
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the file pointed to by that variable will be included as the last step of the
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project command.
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The top-level ``CMakeLists.txt`` file for a project must contain a
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literal, direct call to the :command:`project` command; loading one
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through the :command:`include` command is not sufficient. If no such
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call exists CMake will implicitly add one to the top that enables the
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default languages (``C`` and ``CXX``).
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