Make fs::canonicalize work on directories on Windows

Signed-off-by: Peter Atashian <retep998@gmail.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/libstd/sys/windows/fs.rs b/src/libstd/sys/windows/fs.rs
index e9d98b36a43..721e259823a 100644
--- a/src/libstd/sys/windows/fs.rs
+++ b/src/libstd/sys/windows/fs.rs
@@ -583,6 +583,8 @@ fn get_path(f: &File) -> io::Result<PathBuf> {
 pub fn canonicalize(p: &Path) -> io::Result<PathBuf> {
     let mut opts = OpenOptions::new();
     opts.read(true);
+    // This flag is so we can open directories too
+    opts.flags_and_attributes(c::FILE_FLAG_BACKUP_SEMANTICS);
     let f = try!(File::open(p, &opts));
     get_path(&f)
 }