(void) munmap (fp->_IO_buf_base, fp->_IO_buf_end - fp->_IO_buf_base);
(void) __munmap (fp->_IO_buf_base, fp->_IO_buf_end - fp->_IO_buf_base);
_IO_file_close_mmap (fp)     _IO_FILE *fp;{  /* In addition to closing the file descriptor we have to unmap the     file.  */  (void) munmap (fp->_IO_buf_base, fp->_IO_buf_end - fp->_IO_buf_base);  fp->_IO_buf_base = fp->_IO_buf_end = NULL;  return close (fp->_fileno);}