diff --git a/lib/Target/X86/CMakeLists.txt b/lib/Target/X86/CMakeLists.txt
index 5bcbf800345..e62dfca491d 100644
--- a/lib/Target/X86/CMakeLists.txt
+++ b/lib/Target/X86/CMakeLists.txt
@@ -29,6 +29,7 @@ set(sources
   X86ISelLowering.cpp
   X86InstrInfo.cpp
   X86JITInfo.cpp
+  X86MachObjectWriter.cpp
   X86MCAsmInfo.cpp
   X86MCCodeEmitter.cpp 
   X86MCInstLower.cpp
diff --git a/lib/Target/X86/X86.h b/lib/Target/X86/X86.h
index 27e88505150..210d0268bf8 100644
--- a/lib/Target/X86/X86.h
+++ b/lib/Target/X86/X86.h
@@ -23,11 +23,13 @@ class FunctionPass;
 class JITCodeEmitter;
 class MCCodeEmitter;
 class MCContext;
+class MCObjectWriter;
 class MachineCodeEmitter;
 class Target;
 class TargetAsmBackend;
 class X86TargetMachine;
 class formatted_raw_ostream;
+class raw_ostream;
 
 /// createX86ISelDag - This pass converts a legalized DAG into a 
 /// X86-specific DAG, ready for instruction scheduling.
@@ -74,6 +76,13 @@ FunctionPass *createEmitX86CodeToMemory();
 ///
 FunctionPass *createX86MaxStackAlignmentHeuristicPass();
 
+
+/// createX86MachObjectWriter - Construct an X86 Mach-O object writer.
+MCObjectWriter *createX86MachObjectWriter(raw_ostream &OS,
+                                          bool Is64Bit,
+                                          uint32_t CPUType,
+                                          uint32_t CPUSubtype);
+
 extern Target TheX86_32Target, TheX86_64Target;
 
 } // End llvm namespace
diff --git a/lib/Target/X86/X86AsmBackend.cpp b/lib/Target/X86/X86AsmBackend.cpp
index c39d07b12ed..11ac5eb3465 100644
--- a/lib/Target/X86/X86AsmBackend.cpp
+++ b/lib/Target/X86/X86AsmBackend.cpp
@@ -46,13 +46,6 @@ static unsigned getFixupKindLog2Size(unsigned Kind) {
 }
 
 namespace {
-class X86MachObjectWriter : public MCMachObjectTargetWriter {
-public:
-  X86MachObjectWriter(bool Is64Bit, uint32_t CPUType,
-                      uint32_t CPUSubtype)
-    : MCMachObjectTargetWriter(Is64Bit, CPUType, CPUSubtype,
-                               /*UseAggressiveSymbolFolding=*/Is64Bit) {}
-};
 
 class X86ELFObjectWriter : public MCELFObjectTargetWriter {
 public:
@@ -357,11 +350,9 @@ public:
     : DarwinX86AsmBackend(T) {}
 
   MCObjectWriter *createObjectWriter(raw_ostream &OS) const {
-    return createMachObjectWriter(new X86MachObjectWriter(
-                                    /*Is64Bit=*/false,
-                                    object::mach::CTM_i386,
-                                    object::mach::CSX86_ALL),
-                                  OS, /*IsLittleEndian=*/true);
+    return createX86MachObjectWriter(OS, /*Is64Bit=*/false,
+                                     object::mach::CTM_i386,
+                                     object::mach::CSX86_ALL);
   }
 };
 
@@ -373,11 +364,9 @@ public:
   }
 
   MCObjectWriter *createObjectWriter(raw_ostream &OS) const {
-    return createMachObjectWriter(new X86MachObjectWriter(
-                                    /*Is64Bit=*/true,
-                                    object::mach::CTM_x86_64,
-                                    object::mach::CSX86_ALL),
-                                  OS, /*IsLittleEndian=*/true);
+    return createX86MachObjectWriter(OS, /*Is64Bit=*/true,
+                                     object::mach::CTM_x86_64,
+                                     object::mach::CSX86_ALL);
   }
 
   virtual bool doesSectionRequireSymbols(const MCSection &Section) const {
diff --git a/lib/Target/X86/X86MachObjectWriter.cpp b/lib/Target/X86/X86MachObjectWriter.cpp
new file mode 100644
index 00000000000..8f3dd322248
--- /dev/null
+++ b/lib/Target/X86/X86MachObjectWriter.cpp
@@ -0,0 +1,32 @@
+//===-- X86MachObjectWriter.cpp - X86 Mach-O Writer -----------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "X86.h"
+#include "llvm/MC/MCMachObjectWriter.h"
+using namespace llvm;
+
+namespace {
+class X86MachObjectWriter : public MCMachObjectTargetWriter {
+public:
+  X86MachObjectWriter(bool Is64Bit, uint32_t CPUType,
+                      uint32_t CPUSubtype)
+    : MCMachObjectTargetWriter(Is64Bit, CPUType, CPUSubtype,
+                               /*UseAggressiveSymbolFolding=*/Is64Bit) {}
+};
+}
+
+MCObjectWriter *llvm::createX86MachObjectWriter(raw_ostream &OS,
+                                                bool Is64Bit,
+                                                uint32_t CPUType,
+                                                uint32_t CPUSubtype) {
+  return createMachObjectWriter(new X86MachObjectWriter(Is64Bit,
+                                                        CPUType,
+                                                        CPUSubtype),
+                                OS, /*IsLittleEndian=*/true);
+}