From 909d238eba3003efda367751e81cab5814e1bb12 Mon Sep 17 00:00:00 2001
From: "Michael J. Spencer" <bigcheesegs@gmail.com>
Date: Wed, 10 Nov 2010 15:05:39 +0000
Subject: [PATCH] System/Win32/Path: Implement isSymLink.

llvm-svn: 118681
---
 llvm/lib/System/Win32/Path.inc | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/llvm/lib/System/Win32/Path.inc b/llvm/lib/System/Win32/Path.inc
index 4760dfd93d6d..66e50acaea32 100644
--- a/llvm/lib/System/Win32/Path.inc
+++ b/llvm/lib/System/Win32/Path.inc
@@ -376,7 +376,15 @@ Path::isDirectory() const {
 
 bool
 Path::isSymLink() const {
-  return false;
+  DWORD attributes = GetFileAttributes(path.c_str());
+
+  if (attributes == INVALID_FILE_ATTRIBUTES)
+    // There's no sane way to report this :(.
+    assert(0 && "GetFileAttributes returned INVALID_FILE_ATTRIBUTES");
+
+  // This isn't exactly what defines a NTFS symlink, but it is only true for
+  // paths that act like a symlink.
+  return attributes & FILE_ATTRIBUTE_REPARSE_POINT;
 }
 
 bool