From e481c82fa9521ecc719b29b314543a205c0b53ec Mon Sep 17 00:00:00 2001
From: "Guillaume J. Charmes" <guillaume.charmes@dotcloud.com>
Date: Wed, 18 Dec 2013 10:18:49 -0800
Subject: [PATCH] Fix OSX compilation for aufs

---
 graphdriver/aufs/aufs.go         | 3 +--
 graphdriver/aufs/mount_darwin.go | 2 ++
 graphdriver/aufs/mount_linux.go  | 2 ++
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/graphdriver/aufs/aufs.go b/graphdriver/aufs/aufs.go
index 558c64c5bb..c3caf13c13 100644
--- a/graphdriver/aufs/aufs.go
+++ b/graphdriver/aufs/aufs.go
@@ -30,7 +30,6 @@ import (
 	"os/exec"
 	"path"
 	"strings"
-	"syscall"
 )
 
 func init() {
@@ -327,7 +326,7 @@ func (a *Driver) aufsMount(ro []string, rw, target string) (err error) {
 
 		for _, layer := range ro {
 			branch := fmt.Sprintf("append:%s=ro+wh", layer)
-			if err = mount("none", target, "aufs", syscall.MS_REMOUNT, branch); err != nil {
+			if err = mount("none", target, "aufs", MsRemount, branch); err != nil {
 				return
 			}
 		}
diff --git a/graphdriver/aufs/mount_darwin.go b/graphdriver/aufs/mount_darwin.go
index ce448036f2..62c84fc7c9 100644
--- a/graphdriver/aufs/mount_darwin.go
+++ b/graphdriver/aufs/mount_darwin.go
@@ -2,6 +2,8 @@ package aufs
 
 import "errors"
 
+const MsRemount = 0
+
 func mount(source string, target string, fstype string, flags uintptr, data string) (err error) {
 	return errors.New("mount is not implemented on darwin")
 }
diff --git a/graphdriver/aufs/mount_linux.go b/graphdriver/aufs/mount_linux.go
index 8062bae420..c86f1bbd63 100644
--- a/graphdriver/aufs/mount_linux.go
+++ b/graphdriver/aufs/mount_linux.go
@@ -2,6 +2,8 @@ package aufs
 
 import "syscall"
 
+const MsRemount = syscall.MS_REMOUNT
+
 func mount(source string, target string, fstype string, flags uintptr, data string) error {
 	return syscall.Mount(source, target, fstype, flags, data)
 }