+#include <sys/mount.h>
+/* Make sure we have all the new mount flags we actually try to use. */
+#ifndef MS_BIND
+# define MS_BIND (1 << 12)
+#endif
+#ifndef MS_MOVE
+# define MS_MOVE (1 << 13)
+#endif
+#ifndef MS_RECURSIVE
+# define MS_RECURSIVE (1 << 14)
+#endif
+#ifndef MS_SILENT
+# define MS_SILENT (1 << 15)
+#endif
+/* The shared subtree stuff, which went in around 2.6.15. */
+#ifndef MS_UNBINDABLE
+# define MS_UNBINDABLE (1 << 17)
+#endif
+#ifndef MS_PRIVATE
+# define MS_PRIVATE (1 << 18)
+#endif
+#ifndef MS_SLAVE
+# define MS_SLAVE (1 << 19)
+#endif
+#ifndef MS_SHARED
+# define MS_SHARED (1 << 20)
+#endif
+#ifndef MS_RELATIME
+# define MS_RELATIME (1 << 21)
+#endif