2 files changed, 25 insertions, 0 deletions
diff --git a/clang/lib/Basic/CMakeLists.txt b/clang/lib/Basic/CMakeLists.txt
index 50a06d9e7a4..cfad8c3649e 100644
--- a/clang/lib/Basic/CMakeLists.txt
+++ b/clang/lib/Basic/CMakeLists.txt
@@ -61,6 +61,7 @@ add_clang_library(clangBasic
   CharInfo.cpp
   Diagnostic.cpp
   DiagnosticIDs.cpp
+  DiagnosticOptions.cpp
   FileManager.cpp
   FileSystemStatCache.cpp
   IdentifierTable.cpp
diff --git a/clang/lib/Basic/DiagnosticOptions.cpp b/clang/lib/Basic/DiagnosticOptions.cpp
new file mode 100644
index 00000000000..f54a0ef4edb
--- /dev/null
+++ b/clang/lib/Basic/DiagnosticOptions.cpp
@@ -0,0 +1,24 @@
+//===--- DiagnosticOptions.cpp - C Language Family Diagnostic Handling ----===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//  This file implements the DiagnosticOptions related interfaces.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Basic/DiagnosticOptions.h"
+#include "llvm/Support/raw_ostream.h"
+
+namespace clang {
+
+raw_ostream& operator<<(raw_ostream& Out, DiagnosticLevelMask M) {
+  using UT = std::underlying_type<DiagnosticLevelMask>::type;
+  return Out << static_cast<UT>(M);
+}
+
+} // end namespace clang