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25 lines
1.0 KiB
25 lines
1.0 KiB
CMP0048
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-------
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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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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 cmake_policy command to set it to OLD or
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NEW explicitly.
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.. include:: DEPRECATED.txt
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