diff -ur evolution-data-server-1.2.3-orig/calendar/libecal/e-cal.c evolution-data-server-1.2.3/calendar/libecal/e-cal.c
--- evolution-data-server-1.2.3-orig/calendar/libecal/e-cal.c	2005-06-09 20:00:28.000000000 -0400
+++ evolution-data-server-1.2.3/calendar/libecal/e-cal.c	2005-06-09 20:02:10.000000000 -0400
@@ -40,7 +40,8 @@
 #include "e-cal-view-listener.h"
 #include "e-cal.h"
 
-
+static gboolean
+open_calendar (ECal *ecal, gboolean only_if_exists, GError **error, ECalendarStatus *status, gboolean needs_auth);
 
 typedef struct {
 	GMutex *mutex;