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-rw-r--r--lib/Lex/Preprocessor.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Lex/Preprocessor.cpp b/lib/Lex/Preprocessor.cpp
index 955c39cfe7..4be59c65f7 100644
--- a/lib/Lex/Preprocessor.cpp
+++ b/lib/Lex/Preprocessor.cpp
@@ -86,6 +86,7 @@ Preprocessor::Preprocessor(DiagnosticsEngine &diags, LangOptions &opts,
// Macro expansion is enabled.
DisableMacroExpansion = false;
+ MacroExpansionInDirectivesOverride = false;
InMacroArgs = false;
InMacroArgPreExpansion = false;
NumCachedTokenLexers = 0;