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authorRaul Tambre <raul@tambre.ee>2021-11-01 20:03:09 (GMT)
committerRaul Tambre <raul@tambre.ee>2021-11-02 15:58:21 (GMT)
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Help: Better explain CMAKE_<LANG>_EXTENSIONS_DEFAULT
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.
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-rw-r--r--Help/variable/CMAKE_LANG_EXTENSIONS_DEFAULT.rst7
1 files changed, 5 insertions, 2 deletions
diff --git a/Help/variable/CMAKE_LANG_EXTENSIONS_DEFAULT.rst b/Help/variable/CMAKE_LANG_EXTENSIONS_DEFAULT.rst
index 6783eb5..a66453a 100644
--- a/Help/variable/CMAKE_LANG_EXTENSIONS_DEFAULT.rst
+++ b/Help/variable/CMAKE_LANG_EXTENSIONS_DEFAULT.rst
@@ -3,5 +3,8 @@ CMAKE_<LANG>_EXTENSIONS_DEFAULT
.. versionadded:: 3.22
-Default value used when the :prop_tgt:`<LANG>_EXTENSIONS` target property is
-not set. Initialized during compiler detection to the compiler's default.
+Compiler's default extensions mode. Used as the default for the
+:prop_tgt:`<LANG>_EXTENSIONS` target property when
+:variable:`CMAKE_<LANG>_EXTENSIONS` is not set (see :policy:`CMP0128`).
+
+This variable is read-only. Modifying it is undefined behavior.