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-rw-r--r--clang/lib/Lex/PPMacroExpansion.cpp6
1 files changed, 5 insertions, 1 deletions
diff --git a/clang/lib/Lex/PPMacroExpansion.cpp b/clang/lib/Lex/PPMacroExpansion.cpp
index 5af0205af37..87a07a43d08 100644
--- a/clang/lib/Lex/PPMacroExpansion.cpp
+++ b/clang/lib/Lex/PPMacroExpansion.cpp
@@ -283,7 +283,11 @@ void Preprocessor::RegisterBuiltinMacros() {
Ident_Pragma = RegisterBuiltinMacro(*this, "_Pragma");
// C++ Standing Document Extensions.
- Ident__has_cpp_attribute = RegisterBuiltinMacro(*this, "__has_cpp_attribute");
+ if (LangOpts.CPlusPlus)
+ Ident__has_cpp_attribute =
+ RegisterBuiltinMacro(*this, "__has_cpp_attribute");
+ else
+ Ident__has_cpp_attribute = nullptr;
// GCC Extensions.
Ident__BASE_FILE__ = RegisterBuiltinMacro(*this, "__BASE_FILE__");
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