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CMP0048
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-------
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2023-11-01 06:20:22 +08:00
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The :command:`project` command manages ``VERSION`` variables.
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CMake version 3.0 introduced the ``VERSION`` option of the :command:`project`
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command to specify a project version as well as the name. In order to keep
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:variable:`PROJECT_VERSION` and related variables consistent with variable
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:variable:`PROJECT_NAME` it is necessary to set the ``VERSION`` variables
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to the empty string when no ``VERSION`` is given to :command:`project`.
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However, this can change behavior for existing projects that set ``VERSION``
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variables themselves since :command:`project` may now clear them.
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This policy controls the behavior for compatibility with such projects.
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2023-11-01 06:20:22 +08:00
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The ``OLD`` behavior for this policy is to leave ``VERSION`` variables untouched.
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The ``NEW`` behavior for this policy is to set ``VERSION`` as documented by the
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:command:`project` command.
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This policy was introduced in CMake version 3.0.
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CMake version |release| warns when the policy is not set and uses
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``OLD`` behavior. Use the :command:`cmake_policy` command to set
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it to ``OLD`` or ``NEW`` explicitly.
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.. include:: DEPRECATED.txt
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