1 files changed, 6 insertions, 1 deletions
diff --git a/include/clang/Frontend/DiagnosticOptions.h b/include/clang/Frontend/DiagnosticOptions.h
index 797cb34..b4f147b 100644
--- a/include/clang/Frontend/DiagnosticOptions.h
+++ b/include/clang/Frontend/DiagnosticOptions.h
@@ -39,11 +39,15 @@ public:
                                  /// deserialized by, e.g., the CIndex library.
 
   unsigned ErrorLimit;           /// Limit # errors emitted.
+  unsigned MacroBacktraceLimit;  /// Limit depth of macro instantiation 
+                                 /// backtrace.
   unsigned TemplateBacktraceLimit; /// Limit depth of instantiation backtrace.
 
   /// The distance between tab stops.
   unsigned TabStop;
-  enum { DefaultTabStop = 8, MaxTabStop = 100 };
+  enum { DefaultTabStop = 8, MaxTabStop = 100, 
+         DefaultMacroBacktraceLimit = 6,
+         DefaultTemplateBacktraceLimit = 10 };
 
   /// Column limit for formatting message diagnostics, or 0 if unused.
   unsigned MessageLength;
@@ -75,6 +79,7 @@ public:
     BinaryOutput = 0;
     ErrorLimit = 0;
     TemplateBacktraceLimit = 0;
+    MacroBacktraceLimit = 0;
   }
 };