[ekiga] Fix compilation without dbus

[Eugen Dedu <ededu src gnome org>]

commit 94567f34e2a44bd135cbd43b2845907dcd694e04
Author: Eugen Dedu <eugen dedu univ-fcomte fr>
Date:   Thu Jan 8 22:21:08 2015 +0100

    Fix compilation without dbus

 lib/engine/gui/gtk-frontend/ekiga-app.cpp |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/lib/engine/gui/gtk-frontend/ekiga-app.cpp b/lib/engine/gui/gtk-frontend/ekiga-app.cpp
index 7a07ff3..11b1f01 100644
--- a/lib/engine/gui/gtk-frontend/ekiga-app.cpp
+++ b/lib/engine/gui/gtk-frontend/ekiga-app.cpp
@@ -110,7 +110,9 @@ struct _GmApplicationPrivate
 
   boost::shared_ptr<Ekiga::Settings> video_devices_settings;
 
+#ifdef HAVE_DBUS
   EkigaDBusComponent *dbus_component;
+#endif
 
   Ekiga::GActorMenuStore banks_menu;
   unsigned int banks_actions_count;