commit 94fea5a9560715e2d303c06e173a5668911cca79
author Chris Lattner <sabre@nondot.org> Sun Jul 22 22:11:35 2007 +0000
committer Chris Lattner <sabre@nondot.org> Sun Jul 22 22:11:35 2007 +0000
tree 0434503721754196b24becb055d5e3d60fcca9b3
parent e36751b12c9fad6930a9c58228a828579007c47d

GCC doesn't set __STDC_VERSION__ usually.  It never sets it in
C++ mode, even gnu C++ mode.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@40408 91177308-0d34-0410-b5e6-96231b3b80d8

Driver/clang.cpp

diff --git a/Driver/clang.cpp b/Driver/clang.cpp
index 6016b9a..7d8a459 100644
--- a/Driver/clang.cpp
+++ b/Driver/clang.cpp
@@ -391,9 +391,9 @@
   // current language configuration.
   DefineBuiltinMacro(Buf, "__STDC__=1");
   //DefineBuiltinMacro(Buf, "__ASSEMBLER__=1");
-  if (PP.getLangOptions().C99)
+  if (PP.getLangOptions().C99 && !PP.getLangOptions().CPlusPlus)
     DefineBuiltinMacro(Buf, "__STDC_VERSION__=199901L");
-  else
+  else if (0) // STDC94 ?
     DefineBuiltinMacro(Buf, "__STDC_VERSION__=199409L");
   
   DefineBuiltinMacro(Buf, "__STDC_HOSTED__=1");