[ekiga] Fix compilation error with older GTK on GDK_KEY_KP_Enter

[Eugen Dedu <ededu src gnome org>]

commit e0509ba5c7f2a49b9f0693e56929ed968dcd700e
Author: Eugen Dedu <Eugen Dedu pu-pm univ-fcomte fr>
Date:   Wed Jul 20 09:41:54 2011 +0200

    Fix compilation error with older GTK on GDK_KEY_KP_Enter
    
    Bug introduced recently with commit 4e34c2df.

 lib/engine/gui/gtk-frontend/chat-area.cpp |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/lib/engine/gui/gtk-frontend/chat-area.cpp b/lib/engine/gui/gtk-frontend/chat-area.cpp
index e4c74ac..3e4bda7 100644
--- a/lib/engine/gui/gtk-frontend/chat-area.cpp
+++ b/lib/engine/gui/gtk-frontend/chat-area.cpp
@@ -558,7 +558,7 @@ message_activated_cb (G_GNUC_UNUSED GtkWidget *w,
   // if ...-shift-enter, insert newline
   // if enter, send message
   // note there are two enter: from main kbd and from keypad
-  if ((key->keyval == GDK_Return || key->keyval == GDK_KEY_KP_Enter)
+  if ((key->keyval == GDK_Return || key->keyval == GDK_KP_Enter)
       && (key->state & GDK_SHIFT_MASK) == 0) {
 
     buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (self->priv->message));