* doc/emacs/ack.texi (Acknowledgments): Mention Gnulib.

doc/emacs/ChangeLog

 2012-02-17  Glenn Morris  <rgm@gnu.org>
 
+	* ack.texi (Acknowledgments): Mention Gnulib.
+
 	* ack.texi, calendar.texi, cal-xtra.texi: Use "Bahá'í".
 
 	* calendar.texi: Misc small changes, including updating the dates

doc/emacs/ack.texi

@@ -286,6 +286,11 @@ John Eaton and Kurt Hornik wrote Octave mode.
 @item
 Rolf Ebert co-wrote Ada mode.
 
+@item
+Paul Eggert integrated the Gnulib portability library, and made many
+other portability fixes to the C code; as well as his contributions
+to VC and the calendar.
+
 @item
 Stephen Eglen wrote @file{mspools.el}, which tells you which Procmail
 folders have mail waiting in them; and @file{iswitchb.el}, a feature