From f668a714b1b72d126e218ecb67d744ff1fef2e17 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Fri, 6 Feb 2009 18:20:57 +0000
Subject: [PATCH] -funsigned-char sets __CHAR_UNSIGNED__

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63942 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Lex/Preprocessor.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/Lex/Preprocessor.cpp b/lib/Lex/Preprocessor.cpp
index 984cf1aab8..f4f3a0bfb6 100644
--- a/lib/Lex/Preprocessor.cpp
+++ b/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");
-- 
2.50.1