From: Eli Friedman <eli.friedman@gmail.com>
Date: Wed, 19 Oct 2011 23:46:05 +0000 (+0000)
Subject: Define __STDC__ in -fms-extensions mode; defining it is consistent with gcc, and... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=85037d987a68b8bc9db22e4e1c18cac80b74ea1c;p=clang

Define __STDC__ in -fms-extensions mode; defining it is consistent with gcc, and not defining it causes the system headers on multiple platforms to break with -fms-extensions because they assume the lack of a definition of __STDC__ implies a traditional (pre-ANSI) preprocessor. PR10324 and <rdar://problem/10313809> .



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142554 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Frontend/InitPreprocessor.cpp b/lib/Frontend/InitPreprocessor.cpp
index 6f49ec4744..1f2f4256d3 100644
--- a/lib/Frontend/InitPreprocessor.cpp
+++ b/lib/Frontend/InitPreprocessor.cpp
@@ -278,7 +278,7 @@ static void InitializeStandardPredefinedMacros(const TargetInfo &TI,
                                                const LangOptions &LangOpts,
                                                const FrontendOptions &FEOpts,
                                                MacroBuilder &Builder) {
-  if (!LangOpts.MicrosoftExt && !LangOpts.TraditionalCPP)
+  if (!LangOpts.MicrosoftMode && !LangOpts.TraditionalCPP)
     Builder.defineMacro("__STDC__");
   if (LangOpts.Freestanding)
     Builder.defineMacro("__STDC_HOSTED__", "0");