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e9976c8827
Explain that this represents the compiler's default and mustn't be modified by the user. Clarify when it's used as the default. Additionally: * Add a reference to it in cmake-compile-features in text explaining the feature. * Add explanations for the default initialization by `CMAKE_<LANG>_EXTENSIONS_DEFAULT` to all `<LANG>_EXTENSIONS` pages and references to CMP0128. * Slightly reduce the wordiness of the default initialization explanations by removing an unnecessary "it is". Fixes #22828.
21 lines
648 B
ReStructuredText
21 lines
648 B
ReStructuredText
CMAKE_<LANG>_EXTENSIONS
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-----------------------
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The variations are:
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* :variable:`CMAKE_C_EXTENSIONS`
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* :variable:`CMAKE_CXX_EXTENSIONS`
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* :variable:`CMAKE_CUDA_EXTENSIONS`
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* :variable:`CMAKE_HIP_EXTENSIONS`
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* :variable:`CMAKE_OBJC_EXTENSIONS`
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* :variable:`CMAKE_OBJCXX_EXTENSIONS`
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Default values for :prop_tgt:`<LANG>_EXTENSIONS` target properties if set when
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a target is created. For the compiler's default setting see
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:variable:`CMAKE_<LANG>_EXTENSIONS_DEFAULT`.
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For supported CMake versions see the respective pages.
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See the :manual:`cmake-compile-features(7)` manual for information on
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compile features and a list of supported compilers.
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