Patch by Svante Signell.
Reviewed-on: https://go-review.googlesource.com/c/161517
From-SVN: r268602
-d89db31db68d09aa13a6137122cc096c1d92597b
+77f0f28af556f50c561ff5c2cca17ad6f985068e
The first line of this file holds the git revision number of the last
merge done from the gofrontend repository.
--- /dev/null
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package unix
+
+const AT_REMOVEDIR = 0x200
+const AT_SYMLINK_NOFOLLOW = 0x100