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27 lines
1.1 KiB
27 lines
1.1 KiB
CMP0171
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-------
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.. versionadded:: 3.31
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``codegen`` is a reserved target name.
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CMake 3.30 and earlier did not reserve ``codegen`` as a builtin target name,
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leaving projects free to create their own target with that name.
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CMake 3.31 and later prefer to reserve ``codegen`` as a builtin target name
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to drive custom commands created with the ``CODEGEN`` option to
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:command:`add_custom_command`. In order to support building the ``codegen``
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target in scripted environments, e.g., ``cmake --build . --target codegen``,
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the ``codegen`` target needs to be generated even if no custom commands
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use the ``CODEGEN`` option. This policy provides compatibility for projects
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that have not been updated to avoid creating a target named ``codegen``.
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The ``OLD`` behavior of this policy allows projects to create a target
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with the name ``codegen``. The ``NEW`` behavior halts with a fatal error
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if a target with the name ``codegen`` is created.
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.. |INTRODUCED_IN_CMAKE_VERSION| replace:: 3.31
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.. |WARNS_OR_DOES_NOT_WARN| replace:: warns
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.. include:: STANDARD_ADVICE.txt
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.. include:: DEPRECATED.txt
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