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CMP0161
-------
.. versionadded:: 3.29
The :variable:`CPACK_PRODUCTBUILD_DOMAINS` variable defaults to true.
Before CMake 3.29, the :variable:`CPACK_PRODUCTBUILD_DOMAINS` variable is
unset by default. When using the :cpack_gen:`CPack productbuild Generator`,
this disables the use of the ``domains`` attribute in the productbuild
Distribution XML, and falls back to the ``auth`` attribute instead.
These attributes control where a productbuild package is allowed to be
installed. But the ``auth`` attribute has been deprecated by Apple,
so projects should migrate to using ``domains`` instead.
CMake 3.29 and above prefer to use a default value of true for
:variable:`CPACK_PRODUCTBUILD_DOMAINS`, which means ``domains`` will be used
by default unless the project explicitly sets
:variable:`CPACK_PRODUCTBUILD_DOMAINS` to false.
This policy provides compatibility with projects that enabled the
:cpack_gen:`CPack productbuild Generator`, but did not explicitly set
:variable:`CPACK_PRODUCTBUILD_DOMAINS`.
The ``OLD`` behavior for this policy is to leave
:variable:`CPACK_PRODUCTBUILD_DOMAINS` unset if it hasn't been set.
The ``NEW`` behavior for this policy is to use a default value of true for
:variable:`CPACK_PRODUCTBUILD_DOMAINS`.
.. |INTRODUCED_IN_CMAKE_VERSION| replace:: 3.29
.. |WARNS_OR_DOES_NOT_WARN| replace:: warns
.. include:: STANDARD_ADVICE.txt
Note that a warning will only be emitted if the
:variable:`CPACK_BINARY_PRODUCTBUILD <CPACK_BINARY_<GENNAME>>` variable is
set to true and the project is being built for an Apple platform.
.. include:: DEPRECATED.txt
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