diff --git a/Basic/LangOptions.cpp b/Basic/LangOptions.cpp
new file mode 100644
index 0000000..f12c77d
--- /dev/null
+++ b/Basic/LangOptions.cpp
@@ -0,0 +1,58 @@
+//===--- SourceManager.cpp - Track and cache source files -----------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by Ted Kremenek and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//  This file implements the methods for LangOptions.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Basic/LangOptions.h"
+#include "llvm/Bitcode/Serialize.h"
+#include "llvm/Bitcode/Deserialize.h"
+
+using namespace clang;
+
+void LangOptions::Emit(llvm::Serializer& S) const {
+  S.EmitBool((bool) Trigraphs);
+  S.EmitBool((bool) BCPLComment);
+  S.EmitBool((bool) DollarIdents);
+  S.EmitBool((bool) Digraphs);
+  S.EmitBool((bool) HexFloats);
+  S.EmitBool((bool) C99);
+  S.EmitBool((bool) Microsoft);
+  S.EmitBool((bool) CPlusPlus);
+  S.EmitBool((bool) CPlusPlus0x);
+  S.EmitBool((bool) NoExtensions);
+  S.EmitBool((bool) CXXOperatorNames);             
+  S.EmitBool((bool) ObjC1);
+  S.EmitBool((bool) ObjC2);             
+  S.EmitBool((bool) PascalStrings);
+  S.EmitBool((bool) Boolean);
+  S.EmitBool((bool) WritableStrings);
+  S.EmitBool((bool) LaxVectorConversions);
+}
+
+void LangOptions::Read(llvm::Deserializer& D) {
+  Trigraphs = D.ReadBool() ? 1 : 0;
+  BCPLComment = D.ReadBool() ? 1 : 0;
+  DollarIdents = D.ReadBool() ? 1 : 0;
+  Digraphs = D.ReadBool() ? 1 : 0;
+  HexFloats = D.ReadBool() ? 1 : 0;
+  C99 = D.ReadBool() ? 1 : 0;
+  Microsoft = D.ReadBool() ? 1 : 0;
+  CPlusPlus = D.ReadBool() ? 1 : 0;
+  CPlusPlus0x = D.ReadBool() ? 1 : 0;
+  NoExtensions = D.ReadBool() ? 1 : 0;
+  CXXOperatorNames = D.ReadBool() ? 1 : 0;
+  ObjC1 = D.ReadBool() ? 1 : 0;
+  ObjC2 = D.ReadBool() ? 1 : 0;
+  PascalStrings = D.ReadBool() ? 1 : 0;
+  Boolean = D.ReadBool() ? 1 : 0;
+  WritableStrings = D.ReadBool() ? 1 : 0;
+  LaxVectorConversions = D.ReadBool() ? 1 : 0;
+}