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27 lines
1.1 KiB
ReStructuredText
27 lines
1.1 KiB
ReStructuredText
CMP0165
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.. versionadded:: 3.30
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:command:`enable_language` must not be called before :command:`project`.
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In CMake 3.29 and below, if a project called :command:`enable_language`
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before the first call to :command:`project`, the language would be enabled
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but possibly using unset details that were expected to be set.
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In CMake 3.30 and above, :command:`enable_language` prefers to reject this
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case and stop with a fatal error instead if it detects that :command:`project`
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has not yet been called. This policy provides compatibility for projects that
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happened to work when :command:`enable_language` was called before
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:command:`project` and have not been updated to call these commands in the
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required order.
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The ``OLD`` behavior for this policy is to allow :command:`enable_language`
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to be called before :command:`project`. The ``NEW`` behavior for this policy
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is to fail with a fatal error in such cases.
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.. |INTRODUCED_IN_CMAKE_VERSION| replace:: 3.30
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.. |WARNS_OR_DOES_NOT_WARN| replace:: warns
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.. include:: include/STANDARD_ADVICE.rst
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.. include:: include/DEPRECATED.rst
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