commit deb5ba826c64cdcf3758f8c4909a98cfcb3f0d10
author Ryan Flynn <pizza@parseerror.com> Tue Jul 21 00:07:02 2009 +0000
committer Ryan Flynn <pizza@parseerror.com> Tue Jul 21 00:07:02 2009 +0000
tree c9c367ceb49c014319dcadc4ec09934907a49ed8
parent 4840760c71c7c43865f8b1b3cb3f77a217ece7ad

define __STDC_VERSION__ processor token for c94

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76514 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Frontend/InitPreprocessor.cpp

diff --git a/lib/Frontend/InitPreprocessor.cpp b/lib/Frontend/InitPreprocessor.cpp
index e41dfdd..3ab5931 100644
--- a/lib/Frontend/InitPreprocessor.cpp
+++ b/lib/Frontend/InitPreprocessor.cpp
@@ -247,10 +247,13 @@
     DefineBuiltinMacro(Buf, "__STDC__=1");
   if (LangOpts.AsmPreprocessor)
     DefineBuiltinMacro(Buf, "__ASSEMBLER__=1");
-  if (LangOpts.C99 && !LangOpts.CPlusPlus)
-    DefineBuiltinMacro(Buf, "__STDC_VERSION__=199901L");
-  else if (0) // STDC94 ?
-    DefineBuiltinMacro(Buf, "__STDC_VERSION__=199409L");
+
+  if (!LangOpts.CPlusPlus) {
+    if (LangOpts.C99)
+      DefineBuiltinMacro(Buf, "__STDC_VERSION__=199901L");
+    else if (!LangOpts.GNUMode && LangOpts.Digraphs)
+      DefineBuiltinMacro(Buf, "__STDC_VERSION__=199409L");
+  }
 
   // Standard conforming mode?
   if (!LangOpts.GNUMode)