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Windows is heading toward making UTF-8 the preferred MBCS. As CMake's internal encoding, `UTF-8` is effectively equivalent to `NONE`, which was CMake's behavior prior to 3.15's accidental change to `AUTO`. Behavior of `ENCODING UTF-8` is independent of CMake's internal encoding, making it in principle a better default than `NONE`. Add policy CMP0176 for compatibility and to document the default's history. Fixes: #26262
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1.0 KiB
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28 lines
1.0 KiB
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CMP0176
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.. versionadded:: 3.31
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:command:`execute_process` ``ENCODING`` is ``UTF-8`` by default.
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The ``ENCODING`` option is meaningful only on Windows. It specifies the
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character encoding expected in the process's output on stdout and stderr.
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In CMake 3.14 and below the default encoding was ``NONE``, which corresponds
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to CMake's internal UTF-8 encoding. In CMake 3.15 through CMake 3.30 the
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default encoding was accidentally changed to ``AUTO``, but the change went
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unnoticed and was not documented.
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CMake 3.31 and above prefer the ``ENCODING`` default to be ``UTF-8``.
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This policy provides compatibility with projects that may have been
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relying on the default being ``AUTO``.
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The ``OLD`` behavior of this policy is for :command:`execute_process`
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to use ``AUTO`` by default if no ``ENCODING`` is specified. The ``NEW``
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behavior for this policy is to use ``UTF-8`` as the default ``ENCODING``.
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.. |INTRODUCED_IN_CMAKE_VERSION| replace:: 3.31
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.. |WARNS_OR_DOES_NOT_WARN| replace:: does *not* warn
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.. include:: STANDARD_ADVICE.txt
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.. include:: DEPRECATED.txt
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