@itemize
@item
This function is missing on some platforms:
-AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 10.
+AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 11 2010-11.
@item
This function requires linking with @code{-lutil} on some platforms:
-glibc 2.3.6, FreeBSD 6.0, NetBSD 3.0, OpenBSD 3.8.
+glibc 2.3.6, FreeBSD 6.0, NetBSD 5.0, OpenBSD 3.8.
It is available without link options on other platforms:
-MacOS X 10.3, OSF/1 5.1, Cygwin, Interix 3.5.
+MacOS X 10.5, OSF/1 5.1, Cygwin, Interix 3.5.
@end itemize
Portability problems not fixed by Gnulib:
mingw.
@item
This function is declared in @code{<utmp.h>} on glibc, Cygwin,
-in @code{<util.h>} on MacOS X 10.3, NetBSD 3.0, OpenBSD 3.8,
+in @code{<util.h>} on MacOS X 10.5, NetBSD 5.0, OpenBSD 3.8,
in @code{<libutil.h>} on FreeBSD 6.0, Haiku, and not declared at all
on OSF/1 5.1, Interix 3.5. Also note that @code{<sys/types.h>} is
a prerequisite of @code{<utmp.h>} on FreeBSD 8.0, OpenBSD 4.6 and