@section @code{telldir}
@findex telldir
-POSIX specification: @url{http://www.opengroup.org/susv3xsh/telldir.html}
+POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/telldir.html}
Gnulib module: ---
@itemize
@item
This function is missing on some platforms:
-BeOS.
+MSVC 9, BeOS.
+@item
+On platforms where @code{long int} is a 32-bit type, this function may not
+work correctly on huge directories larger than 2 GB. The fix is to use
+the @code{AC_SYS_LARGEFILE} macro (only on Mac OS X systems).
@end itemize