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-rw-r--r--lib/Lex/Preprocessor.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Lex/Preprocessor.cpp b/lib/Lex/Preprocessor.cpp
index 3fa76fa161..7800fb5189 100644
--- a/lib/Lex/Preprocessor.cpp
+++ b/lib/Lex/Preprocessor.cpp
@@ -430,7 +430,8 @@ static void InitializePredefinedMacros(Preprocessor &PP,
// and __DATE__ etc.
// These should all be defined in the preprocessor according to the
// current language configuration.
- DefineBuiltinMacro(Buf, "__STDC__=1");
+ if (!PP.getLangOptions().Microsoft)
+ DefineBuiltinMacro(Buf, "__STDC__=1");
if (PP.getLangOptions().AsmPreprocessor)
DefineBuiltinMacro(Buf, "__ASSEMBLER__=1");
if (PP.getLangOptions().C99 && !PP.getLangOptions().CPlusPlus)