Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/Object/MachOUniversal.h b/linux-x64/clang/include/llvm/Object/MachOUniversal.h
new file mode 100644
index 0000000..72837d0
--- /dev/null
+++ b/linux-x64/clang/include/llvm/Object/MachOUniversal.h
@@ -0,0 +1,168 @@
+//===- MachOUniversal.h - Mach-O universal binaries -------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares Mach-O fat/universal binaries.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_OBJECT_MACHOUNIVERSAL_H
+#define LLVM_OBJECT_MACHOUNIVERSAL_H
+
+#include "llvm/ADT/Triple.h"
+#include "llvm/ADT/iterator_range.h"
+#include "llvm/BinaryFormat/MachO.h"
+#include "llvm/Object/Archive.h"
+#include "llvm/Object/Binary.h"
+#include "llvm/Object/MachO.h"
+
+namespace llvm {
+class StringRef;
+
+namespace object {
+
+class MachOUniversalBinary : public Binary {
+  virtual void anchor();
+
+  uint32_t Magic;
+  uint32_t NumberOfObjects;
+public:
+  class ObjectForArch {
+    const MachOUniversalBinary *Parent;
+    /// \brief Index of object in the universal binary.
+    uint32_t Index;
+    /// \brief Descriptor of the object.
+    MachO::fat_arch Header;
+    MachO::fat_arch_64 Header64;
+
+  public:
+    ObjectForArch(const MachOUniversalBinary *Parent, uint32_t Index);
+
+    void clear() {
+      Parent = nullptr;
+      Index = 0;
+    }
+
+    bool operator==(const ObjectForArch &Other) const {
+      return (Parent == Other.Parent) && (Index == Other.Index);
+    }
+
+    ObjectForArch getNext() const { return ObjectForArch(Parent, Index + 1); }
+    uint32_t getCPUType() const {
+      if (Parent->getMagic() == MachO::FAT_MAGIC)
+        return Header.cputype;
+      else // Parent->getMagic() == MachO::FAT_MAGIC_64
+        return Header64.cputype;
+    }
+    uint32_t getCPUSubType() const {
+      if (Parent->getMagic() == MachO::FAT_MAGIC)
+        return Header.cpusubtype;
+      else // Parent->getMagic() == MachO::FAT_MAGIC_64
+        return Header64.cpusubtype;
+    }
+    uint32_t getOffset() const {
+      if (Parent->getMagic() == MachO::FAT_MAGIC)
+        return Header.offset;
+      else // Parent->getMagic() == MachO::FAT_MAGIC_64
+        return Header64.offset;
+    }
+    uint32_t getSize() const {
+      if (Parent->getMagic() == MachO::FAT_MAGIC)
+        return Header.size;
+      else // Parent->getMagic() == MachO::FAT_MAGIC_64
+        return Header64.size;
+    }
+    uint32_t getAlign() const {
+      if (Parent->getMagic() == MachO::FAT_MAGIC)
+        return Header.align;
+      else // Parent->getMagic() == MachO::FAT_MAGIC_64
+        return Header64.align;
+    }
+    uint32_t getReserved() const {
+      if (Parent->getMagic() == MachO::FAT_MAGIC)
+        return 0;
+      else // Parent->getMagic() == MachO::FAT_MAGIC_64
+        return Header64.reserved;
+    }
+    std::string getArchFlagName() const {
+      const char *McpuDefault, *ArchFlag;
+      if (Parent->getMagic() == MachO::FAT_MAGIC) {
+        Triple T =
+            MachOObjectFile::getArchTriple(Header.cputype, Header.cpusubtype,
+                                           &McpuDefault, &ArchFlag);
+      } else { // Parent->getMagic() == MachO::FAT_MAGIC_64
+        Triple T =
+            MachOObjectFile::getArchTriple(Header64.cputype,
+                                           Header64.cpusubtype,
+                                           &McpuDefault, &ArchFlag);
+      }
+      if (ArchFlag) {
+        std::string ArchFlagName(ArchFlag);
+        return ArchFlagName;
+      } else {
+        std::string ArchFlagName("");
+        return ArchFlagName;
+      }
+    }
+
+    Expected<std::unique_ptr<MachOObjectFile>> getAsObjectFile() const;
+
+    Expected<std::unique_ptr<Archive>> getAsArchive() const;
+  };
+
+  class object_iterator {
+    ObjectForArch Obj;
+  public:
+    object_iterator(const ObjectForArch &Obj) : Obj(Obj) {}
+    const ObjectForArch *operator->() const { return &Obj; }
+    const ObjectForArch &operator*() const { return Obj; }
+
+    bool operator==(const object_iterator &Other) const {
+      return Obj == Other.Obj;
+    }
+    bool operator!=(const object_iterator &Other) const {
+      return !(*this == Other);
+    }
+
+    object_iterator& operator++() {  // Preincrement
+      Obj = Obj.getNext();
+      return *this;
+    }
+  };
+
+  MachOUniversalBinary(MemoryBufferRef Souce, Error &Err);
+  static Expected<std::unique_ptr<MachOUniversalBinary>>
+  create(MemoryBufferRef Source);
+
+  object_iterator begin_objects() const {
+    return ObjectForArch(this, 0);
+  }
+  object_iterator end_objects() const {
+    return ObjectForArch(nullptr, 0);
+  }
+
+  iterator_range<object_iterator> objects() const {
+    return make_range(begin_objects(), end_objects());
+  }
+
+  uint32_t getMagic() const { return Magic; }
+  uint32_t getNumberOfObjects() const { return NumberOfObjects; }
+
+  // Cast methods.
+  static bool classof(Binary const *V) {
+    return V->isMachOUniversalBinary();
+  }
+
+  Expected<std::unique_ptr<MachOObjectFile>>
+  getObjectForArch(StringRef ArchName) const;
+};
+
+}
+}
+
+#endif