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-rw-r--r--lib/Lex/PPMacroExpansion.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Lex/PPMacroExpansion.cpp b/lib/Lex/PPMacroExpansion.cpp
index aebebaac46ac..de166c75e2cb 100644
--- a/lib/Lex/PPMacroExpansion.cpp
+++ b/lib/Lex/PPMacroExpansion.cpp
@@ -1183,6 +1183,7 @@ static bool HasFeature(const Preprocessor &PP, StringRef Feature) {
.Case("cxx_attributes", LangOpts.CPlusPlus11)
.Case("cxx_auto_type", LangOpts.CPlusPlus11)
.Case("cxx_constexpr", LangOpts.CPlusPlus11)
+ .Case("cxx_constexpr_string_builtins", LangOpts.CPlusPlus11)
.Case("cxx_decltype", LangOpts.CPlusPlus11)
.Case("cxx_decltype_incomplete_return_types", LangOpts.CPlusPlus11)
.Case("cxx_default_function_template_args", LangOpts.CPlusPlus11)