-#define MNT_FORCE 1
-#define MS_MGC_VAL 0xc0ed0000 /* Magic number indicatng "new" flags */
-#define MS_REMOUNT 32 /* Alter flags of a mounted FS. */
-#define MS_RDONLY 1 /* Mount read-only. */
+static const int MNT_FORCE = 1;
+static const int MS_MGC_VAL = 0xc0ed0000; /* Magic number indicatng "new" flags */
+static const int MS_REMOUNT = 32; /* Alter flags of a mounted FS. */
+static const int MS_RDONLY = 1; /* Mount read-only. */