| CMP0000
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| A minimum required CMake version must be specified.
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| CMake requires that projects specify the version of CMake to which
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| they have been written. This policy has been put in place so users
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| trying to build the project may be told when they need to update their
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| CMake. Specifying a version also helps the project build with CMake
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| versions newer than that specified. Use the :command:`cmake_minimum_required`
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| command at the top of your main ``CMakeLists.txt`` file:
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| ::
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| cmake_minimum_required(VERSION <major>.<minor>)
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| where ``<major>.<minor>`` is the version of CMake you want to support
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| (such as ``3.14``). The command will ensure that at least the given
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| version of CMake is running and help newer versions be compatible with
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| the project. See documentation of :command:`cmake_minimum_required` for
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| details.
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| Note that the command invocation must appear in the ``CMakeLists.txt``
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| file itself; a call in an included file is not sufficient. However,
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| the :command:`cmake_policy` command may be called to set policy ``CMP0000``
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| to ``OLD`` or ``NEW`` behavior explicitly. The ``OLD`` behavior is to
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| silently ignore the missing invocation. The ``NEW`` behavior is to issue
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| an error instead of a warning. An included file may set ``CMP0000``
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| explicitly to affect how this policy is enforced for the main
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| ``CMakeLists.txt`` file.
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| This policy was introduced in CMake version 2.6.0.
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| .. include:: DEPRECATED.txt
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|