[evolution-data-server] Fix build

[Kjartan Maraas <kmaraas src gnome org>]

commit 3c3edd8bf9f772a0d0710405f0b1802c4a71ed41
Author: Kjartan Maraas <kmaraas gnome org>
Date:   Thu Aug 8 21:23:38 2013 +0200

    Fix build

 calendar/backends/http/e-cal-backend-http.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/calendar/backends/http/e-cal-backend-http.c b/calendar/backends/http/e-cal-backend-http.c
index a9675d9..4c74c3a 100644
--- a/calendar/backends/http/e-cal-backend-http.c
+++ b/calendar/backends/http/e-cal-backend-http.c
@@ -27,6 +27,7 @@
 #include <glib/gi18n-lib.h>
 
 #include <libsoup/soup.h>
+#include <libedata-cal/libedata-cal.h>
 #include "e-cal-backend-http.h"
 
 #define E_CAL_BACKEND_HTTP_GET_PRIVATE(obj) \