@section @code{ilogb}
@findex ilogb
-POSIX specification: @url{http://www.opengroup.org/susv3xsh/ilogb.html}
+POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/ilogb.html}
Gnulib module: ---
Portability problems not fixed by Gnulib:
@itemize
+@item
+This function is missing on some platforms:
+IRIX 5.3.
@end itemize