diff --git a/llvm/lib/System/Darwin/Path.cpp b/llvm/lib/System/Darwin/Path.cpp
new file mode 100644
index 0000000..b3321a4
--- /dev/null
+++ b/llvm/lib/System/Darwin/Path.cpp
@@ -0,0 +1,36 @@
+//===- llvm/System/Darwin/Path.cpp - Linux Path Implementation --*- C++ -*-===//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by Reid Spencer and is distributed under the 
+// University of Illinois Open Source License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
+//
+// This file provides the Darwin specific implementation of the Path class.
+//
+//===----------------------------------------------------------------------===//
+
+//===----------------------------------------------------------------------===//
+//=== WARNING: Implementation here must contain only Darwin specific code 
+//===          and must not be generic UNIX code (see ../Unix/Path.cpp)
+//===----------------------------------------------------------------------===//
+
+// Include the generic unix implementation
+#include "../Unix/Path.cpp"
+
+namespace llvm {
+using namespace sys;
+
+bool 
+Path::is_valid() const {
+  if (path.empty()) 
+    return false;
+  if (path.length() >= MAXPATHLEN)
+    return false;
+  return true;
+}
+
+}
+
+// vim: sw=2 smartindent smarttab tw=80 autoindent expandtab