Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/Object/ArchiveWriter.h b/linux-x64/clang/include/llvm/Object/ArchiveWriter.h
new file mode 100644
index 0000000..495b943
--- /dev/null
+++ b/linux-x64/clang/include/llvm/Object/ArchiveWriter.h
@@ -0,0 +1,47 @@
+//===- ArchiveWriter.h - ar archive file format writer ----------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Declares the writeArchive function for writing an archive file.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_OBJECT_ARCHIVEWRITER_H
+#define LLVM_OBJECT_ARCHIVEWRITER_H
+
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Object/Archive.h"
+#include "llvm/Support/Error.h"
+#include "llvm/Support/FileSystem.h"
+
+namespace llvm {
+
+struct NewArchiveMember {
+ std::unique_ptr<MemoryBuffer> Buf;
+ StringRef MemberName;
+ sys::TimePoint<std::chrono::seconds> ModTime;
+ unsigned UID = 0, GID = 0, Perms = 0644;
+
+ bool IsNew = false;
+ NewArchiveMember() = default;
+ NewArchiveMember(MemoryBufferRef BufRef);
+
+ static Expected<NewArchiveMember>
+ getOldMember(const object::Archive::Child &OldMember, bool Deterministic);
+
+ static Expected<NewArchiveMember> getFile(StringRef FileName,
+ bool Deterministic);
+};
+
+Error writeArchive(StringRef ArcName, ArrayRef<NewArchiveMember> NewMembers,
+ bool WriteSymtab, object::Archive::Kind Kind,
+ bool Deterministic, bool Thin,
+ std::unique_ptr<MemoryBuffer> OldArchiveBuf = nullptr);
+}
+
+#endif