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27 lines
1.1 KiB
27 lines
1.1 KiB
2 years ago
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CMP0144
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-------
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.. versionadded:: 3.27
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:command:`find_package` uses upper-case ``<PACKAGENAME>_ROOT`` variables.
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In CMake 3.27 and above the :command:`find_package(<PackageName>)` command now
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searches prefixes specified by the upper-case :variable:`<PACKAGENAME>_ROOT`
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CMake variable and the :envvar:`<PACKAGENAME>_ROOT` environment variable
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in addition to the case-preserved :variable:`<PackageName>_ROOT` and
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:envvar:`<PackageName>_ROOT` variables used since policy :policy:`CMP0074`.
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This policy provides compatibility with projects that have not been
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updated to avoid using ``<PACKAGENAME>_ROOT`` variables for other purposes.
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The ``OLD`` behavior for this policy is to ignore ``<PACKAGENAME>_ROOT``
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variables if the original ``<PackageName>`` has lower-case characters.
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The ``NEW`` behavior for this policy is to use ``<PACKAGENAME>_ROOT``
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variables.
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This policy was introduced in CMake version 3.27. CMake version
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|release| warns when the policy is not set and uses ``OLD`` behavior.
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Use the :command:`cmake_policy` command to set it to ``OLD`` or ``NEW``
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explicitly.
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.. include:: DEPRECATED.txt
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