prepare for 'login_tty' module

[Bruno Haible]

This adds documentation about the login_tty() function.


2010-03-21  Bruno Haible  <address@hidden>

        login_tty: Documentation.
        * doc/glibc-functions/login_tty.texi: New file.
        * doc/gnulib.texi (Glibc <utmp.h>): Include it.

===================== doc/glibc-functions/login_tty.texi =====================
@node login_tty
@subsection @code{login_tty}
@findex login_tty

Gnulib module: ---

Portability problems fixed by Gnulib:
@itemize
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@item
This function is missing on some platforms:
AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 10, mingw.
@item
This function requires linking with @code{-lutil} on some platforms:
glibc 2.3.6, FreeBSD 6.0, NetBSD 3.0, OpenBSD 3.8.
It is available without link options on other platforms:
MacOS X 10.3, OSF/1 5.1, Cygwin, Interix 3.5.
@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{<libutil.h>} on FreeBSD 6.0, Haiku, and not declared at all
on OSF/1 5.1, Interix 3.5.
@end itemize
==============================================================================
--- doc/gnulib.texi.orig        Mon Mar 22 00:38:17 2010
+++ doc/gnulib.texi     Mon Mar 22 00:16:05 2010
@@ -6236,6 +6236,7 @@
 * setutent::
 * updwtmp::
 * utmpname::
+* login_tty::
 @end menu
 
 @include glibc-functions/endutent.texi
@@ -6249,6 +6250,7 @@
 @include glibc-functions/setutent.texi
 @include glibc-functions/updwtmp.texi
 @include glibc-functions/utmpname.texi
address@hidden glibc-functions/login_tty.texi
 
 @node Glibc utmpx.h
 @section Glibc Extensions to @code{<utmpx.h>}