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CMAKE_POLICY_DEFAULT_CMP<NNNN>
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------------------------------
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Default for CMake Policy ``CMP<NNNN>`` when it is otherwise left unset.
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Commands :command:`cmake_minimum_required(VERSION)` and
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:command:`cmake_policy(VERSION)` by default leave policies introduced after
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the given version unset. Set ``CMAKE_POLICY_DEFAULT_CMP<NNNN>`` to ``OLD``
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or ``NEW`` to specify the default for policy ``CMP<NNNN>``, where ``<NNNN>``
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is the policy number.
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This variable should not be set by a project in CMake code; use
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:command:`cmake_policy(SET)` instead. Users running CMake may set this
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variable in the cache (e.g. ``-DCMAKE_POLICY_DEFAULT_CMP<NNNN>=<OLD|NEW>``)
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to set a policy not otherwise set by the project. Set to ``OLD`` to quiet a
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policy warning while using old behavior or to ``NEW`` to try building the
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project with new behavior.
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