--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2008-05-19  Simon Josefsson  <simon@josefsson.org>
+            Bruno Haible <bruno@clisp.org>
+
+	* doc/glibc-functions/getpass.texi: Document gnulib
+	implementation.
+
 2008-05-18  Bruno Haible  <bruno@clisp.org>
 
 	* modules/propername: New file, from GNU gettext.

--- a/doc/glibc-functions/getpass.texi
+++ b/doc/glibc-functions/getpass.texi
@@ -2,15 +2,23 @@
 @subsection @code{getpass}
 @findex getpass
 
-Gnulib module: ---
+Gnulib module: getpass or getpass-gnu
 
-Portability problems fixed by Gnulib:
-@itemize
-@end itemize
-
-Portability problems not fixed by Gnulib:
+Portability problems fixed by either Gnulib module @code{getpass} or @code{getpass-gnu}:
 @itemize
 @item
 This function is missing on some platforms:
 mingw, BeOS.
 @end itemize
+
+Portability problems fixed by Gnulib module @code{getpass-gnu}:
+@itemize
+@item
+The gnulib implementation return a password of arbitrary length read
+from /dev/tty (or stdin), other implementations may truncate the
+password to PASS_MAX or 8 characters.
+@end itemize
+
+Portability problems not fixed by Gnulib:
+@itemize
+@end itemize