@itemize
@item
This function is missing on some platforms:
-MacOS X 10.3, OpenBSD 3.8, mingw, BeOS.
+MacOS X 10.3, OpenBSD 3.8, Minix 3.1.8, mingw, MSVC 9, BeOS.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
+@item
+This function is not declared on some platforms:
+IRIX 5.3.
+@item
+This function reports success for invalid file descriptors on some platforms:
+NetBSD 5.1, Cygwin 1.7.9.
@end itemize