diff --git a/llvm/include/Support/Signals.h b/llvm/include/Support/Signals.h
index dff849cfbb00..211cf111be26 100644
--- a/llvm/include/Support/Signals.h
+++ b/llvm/include/Support/Signals.h
@@ -24,6 +24,9 @@ namespace llvm {
   ///
   void RemoveFileOnSignal(const std::string &Filename);
 
+  /// PrintStackTraceOnErrorSignal - When an error signal (such as SIBABRT or
+  /// SIGSEGV) is delivered to the process, print a stack trace and then exit.
+  void PrintStackTraceOnErrorSignal();
 } // End llvm namespace
 
 #endif