@section @code{hypot}
@findex hypot
-POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/hypot.html}
+POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/hypot.html}
-Gnulib module: hypot
+Gnulib module: hypot or hypot-ieee
-Portability problems fixed by Gnulib:
+Portability problems fixed by either Gnulib module @code{hypot} or @code{hypot-ieee}:
@itemize
@end itemize
+Portability problems fixed by Gnulib module @code{hypot-ieee}:
+@itemize
+@item
+When the arguments are mixed NaN and Infinity, this function returns a wrong
+value on some platforms:
+OSF/1 5.1, mingw, MSVC 9.
+@end itemize
+
Portability problems not fixed by Gnulib:
@itemize
@end itemize