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CheckSymbolExists: Document that intrinsics may not be detected

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Fixes: #16794
This commit is contained in:
Brad King
2017-04-12 09:33:03 -04:00
parent 91233d563b
commit 7f8b93ab0a
1 changed files with 2 additions and 2 deletions
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4
Modules/CheckSymbolExists.cmake
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@@ -22,8 +22,8 @@ or macro in ``C``.
If the header files define the symbol as a macro it is considered
available and assumed to work. If the header files declare the symbol
as a function or variable then the symbol must also be available for
linking.
If the symbol is a type or enum value it will not be recognized
linking (so intrinsics may not be detected).
If the symbol is a type, enum value, or intrinsic it will not be recognized
(consider using :module:`CheckTypeSize` or :module:`CheckCSourceCompiles`).
If the check needs to be done in C++, consider using
:module:`CheckCXXSymbolExists` instead.