-funsigned-char sets __CHAR_UNSIGNED__

llvm-svn: 63942
2009-02-06 18:20:57 +00:00
parent cd2cd9f5d7
commit a31829b5bc
1 changed files with 3 additions and 0 deletions
--- a/clang/lib/Lex/Preprocessor.cpp
+++ b/clang/lib/Lex/Preprocessor.cpp
@@ -572,6 +572,9 @@ static void InitializePredefinedMacros(Preprocessor &PP,
    DefineBuiltinMacro(Buf, MacroBuf);
  }
  
+  if (!TI.isCharSigned())
+    DefineBuiltinMacro(Buf, "__CHAR_UNSIGNED__");  
+  
  // Build configuration options.  FIXME: these should be controlled by
  // command line options or something.
  DefineBuiltinMacro(Buf, "__DYNAMIC__=1");