diff -r 69f260ac8ea8 -r f883709bdba4 pidgin/plugins/timestamp_format.c
--- a/pidgin/plugins/timestamp_format.c	Mon Nov 22 10:18:15 2010 +0000
+++ b/pidgin/plugins/timestamp_format.c	Thu Nov 25 22:30:18 2010 +0000
@@ -155,8 +155,9 @@
 	if (!frame)
 		return;
 
+  /* GTK_DIALOG_NO_SEPARATOR seems to be gone in gtk+ 3.0... */
 	dialog = gtk_dialog_new_with_buttons(PIDGIN_ALERT_TITLE, NULL,
-			GTK_DIALOG_NO_SEPARATOR | GTK_DIALOG_DESTROY_WITH_PARENT,
+			GTK_DIALOG_DESTROY_WITH_PARENT,
 			GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
 			NULL);
 	g_signal_connect_after(G_OBJECT(dialog), "response", G_CALLBACK(gtk_widget_destroy), dialog);