static uint64 _tiffSeekProc ( thandle_t fd , uint64 off , int whence ) {
 fd_as_handle_union_t fdh ;
 _TIFF_off_t off_io = ( _TIFF_off_t ) off ;
 if ( ( uint64 ) off_io != off ) {
 errno = EINVAL ;
 return ( uint64 ) - 1 ;
 }
 fdh . h = fd ;
 return ( ( uint64 ) _TIFF_lseek_f ( fdh . fd , off_io , whence ) ) ;
 }
static uint64 _tiffSeekProc ( thandle_t fd , uint64 off , int whence ) {
 fd_as_handle_union_t fdh ;
 _TIFF_off_t off_io = ( _TIFF_off_t ) off ;
 if ( ( uint64 ) off_io != off ) {
 errno = EINVAL ;
 return ( uint64 ) - 1 ;
 }
 fdh . h = fd ;
 return ( ( uint64 ) _TIFF_lseek_f ( fdh . fd , off_io , whence ) ) ;
 }