RNDUP
#undef RNDUP
#define RNDUP(x) ((1 + (((x)-1)/sizeof (void *))) * sizeof (void *))
#define RNDUP(x) ((((x) + BYTES_PER_XDR_UNIT - 1) / BYTES_PER_XDR_UNIT) \
#define RNDUP(x, y) (((x) + ((y) - 1ul)) & ~((y) - 1ul))