FTBFS with GTK+ 3.14.6

[Stephen M. Webb]

Current Unity HEAD fails to build from source against libgtk-3-dev 3.14.6. the following error occurs.

/tmp/buildd/unity-7.3.1+15.04.20141216/panel/PanelTray.cpp: In constructor 'unity::PanelTray::PanelTray(int)':
/tmp/buildd/unity-7.3.1+15.04.20141216/panel/PanelTray.cpp:48:3: error: 'void gtk_window_set_has_resize_grip(GtkWindow*, gboolean)' is deprecated (declared at /usr/include/gtk-3.0/gtk/gtkwindow.h:472) [-Werror=deprecated-declarations]
   gtk_window_set_has_resize_grip(gtkwindow, FALSE);
   ^
/tmp/buildd/unity-7.3.1+15.04.20141216/panel/PanelTray.cpp:48:50: error: 'void gtk_window_set_has_resize_grip(GtkWindow*, gboolean)' is deprecated (declared at /usr/include/gtk-3.0/gtk/gtkwindow.h:472) [-Werror=deprecated-declarations]
   gtk_window_set_has_resize_grip(gtkwindow, FALSE);
                                                  ^
cc1plus: all warnings being treated as errors
panel/CMakeFiles/panel-lib.dir/build.make:195: recipe for target 'panel/CMakeFiles/panel-lib.dir/PanelTray.cpp.o' failed

[Launchpad Janitor (janitor)]

This bug was fixed in the package unity - 7.3.1+15.04.20150112-0ubuntu1

---------------
unity (7.3.1+15.04.20150112-0ubuntu1) vivid; urgency=low

  [ Brandon Schaefer ]
  * Remove deprecated code that is no longer supported:
    https://mail.gnome.org/archives/commits-list/2014-July/msg00351.html
    (LP: #1404326)

  [ Andrea Azzarone ]
  * Remove unsed StartupNotifyService.*
 -- Ubuntu daily release <email address hidden> Mon, 12 Jan 2015 20:21:23 +0000