1  #if __WORDSIZE == 64
       2  # define __PTHREAD_MUTEX_KIND_OFFSET		16
       3  #else
       4  # define __PTHREAD_MUTEX_KIND_OFFSET		12
       5  #endif
       6  
       7  
       8  #if __WORDSIZE == 64
       9  # define __PTHREAD_RWLOCK_FLAGS_OFFSET		48
      10  #else
      11  # if __BYTE_ORDER == __BIG_ENDIAN
      12  #  define __PTHREAD_RWLOCK_FLAGS_OFFSET		27
      13  # else
      14  #  define __PTHREAD_RWLOCK_FLAGS_OFFSET		24
      15  # endif
      16  #endif