Make an RAII com initializer.

Differential Revision: http://reviews.llvm.org/D9267
Reviewed By: Aaron Ballman, David Majnemer

llvm-svn: 235898
diff --git a/llvm/lib/Support/Unix/COM.inc b/llvm/lib/Support/Unix/COM.inc
new file mode 100644
index 0000000..c7b930b
--- /dev/null
+++ b/llvm/lib/Support/Unix/COM.inc
@@ -0,0 +1,27 @@
+//===- llvm/Support/Unix/COM.inc - Unix COM Implementation -----*- C++ -*-===//
+//
+//                     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 Unix portion of COM support.
+//
+//===----------------------------------------------------------------------===//
+
+//===----------------------------------------------------------------------===//
+//=== WARNING: Implementation here must contain only generic UNIX code that
+//===          is guaranteed to work on *all* UNIX variants.
+//===----------------------------------------------------------------------===//
+
+namespace llvm {
+namespace sys {
+
+COMInitializer::COMInitializer(COMThreadingMode Threading,
+                               bool SpeedOverMemory) {}
+
+COMInitializer::~COMInitializer() {}
+}
+}