hypotl-ieee: Work around test failure on OSF/1 and native Windows.

[gnulib.git] / doc / posix-functions / hypotl.texi

diff --git a/doc/posix-functions/hypotl.texi b/doc/posix-functions/hypotl.texi
index 06bea0c..630f5b4 100644 (file)
--- a/doc/posix-functions/hypotl.texi
+++ b/doc/posix-functions/hypotl.texi
@@ -4,15 +4,23 @@
 
 POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/hypotl.html}
 
-Gnulib module: hypotl
+Gnulib module: hypotl or hypotl-ieee
 
-Portability problems fixed by Gnulib:
+Portability problems fixed by either Gnulib module @code{hypotl} or @code{hypotl-ieee}:
 @itemize
 @item
 This function is missing on some platforms:
 FreeBSD 6.0, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 9, Cygwin, MSVC 9, Interix 3.5, BeOS.
 @end itemize
 
+Portability problems fixed by Gnulib module @code{hypotl-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