[evolution-kolab] Make sure E_TYPE_SOURCE_KOLAB_FOLDER is registered.

[Matthew Barnes <mbarnes src gnome org>]

commit 176d810808a74d093e9fc91ce57d3d2d6ea3bd35
Author: Matthew Barnes <mbarnes redhat com>
Date:   Tue Sep 4 09:22:15 2012 -0400

    Make sure E_TYPE_SOURCE_KOLAB_FOLDER is registered.
    
    GType needs to be registered ahead of time for ESource to pair
    "[Kolab Folder]" from a key file with ESourceKolabFolderClass.

 src/addressbook/e-book-backend-kolab.c |   10 ++++++++++
 src/calendar/e-cal-backend-kolab.c     |    9 +++++++++
 src/collection/e-kolab-backend.c       |    3 ++-
 3 files changed, 21 insertions(+), 1 deletions(-)
---
diff --git a/src/addressbook/e-book-backend-kolab.c b/src/addressbook/e-book-backend-kolab.c
index affaf49..76f3b89 100644
--- a/src/addressbook/e-book-backend-kolab.c
+++ b/src/addressbook/e-book-backend-kolab.c
@@ -50,6 +50,12 @@
 
 #include "e-book-backend-kolab.h"
 
+/* This forces the GType to be registered in a way that
+ * avoids a "statement with no effect" compiler warning.
+ * FIXME Use g_type_ensure() once we require GLib 2.34. */
+#define REGISTER_TYPE(type) \
+	(g_type_class_unref (g_type_class_ref (type)))
+
 /*----------------------------------------------------------------------------*/
 /* table of KolabMailAccess objects */
 
@@ -1186,6 +1192,10 @@ e_book_backend_kolab_class_init (EBookBackendKolabClass *klass)
 	sync_class->get_contact_sync = book_backend_kolab_get_contact;
 	sync_class->get_contact_list_sync = book_backend_kolab_get_contact_list;
 	sync_class->get_contact_list_uids_sync = book_backend_kolab_get_contact_list_uids;
+
+	/* Register relevant ESourceExtension types. */
+	REGISTER_TYPE (E_TYPE_SOURCE_KOLAB_FOLDER);
+
 } /* e_book_backend_kolab_class_init () */
 
 
diff --git a/src/calendar/e-cal-backend-kolab.c b/src/calendar/e-cal-backend-kolab.c
index d48be33..7198a44 100644
--- a/src/calendar/e-cal-backend-kolab.c
+++ b/src/calendar/e-cal-backend-kolab.c
@@ -52,6 +52,12 @@
 #include "kolab-util-calendar-cache.h"
 #include "e-cal-backend-kolab.h"
 
+/* This forces the GType to be registered in a way that
+ * avoids a "statement with no effect" compiler warning.
+ * FIXME Use g_type_ensure() once we require GLib 2.34. */
+#define REGISTER_TYPE(type) \
+	(g_type_class_unref (g_type_class_ref (type)))
+
 /*----------------------------------------------------------------------------*/
 /* table of KolabMailAccess objects */
 
@@ -2016,6 +2022,9 @@ e_cal_backend_kolab_class_init (ECalBackendKolabClass *klass)
 	sync_class->get_timezone_sync = cal_backend_kolab_get_timezone;
 	sync_class->add_timezone_sync = cal_backend_kolab_add_timezone;
 
+	/* Register relevant ESourceExtension types. */
+	REGISTER_TYPE (E_TYPE_SOURCE_KOLAB_FOLDER);
+
 } /* e_cal_backend_kolab_class_init () */
 
 
diff --git a/src/collection/e-kolab-backend.c b/src/collection/e-kolab-backend.c
index 0c28a0a..03c38a5 100644
--- a/src/collection/e-kolab-backend.c
+++ b/src/collection/e-kolab-backend.c
@@ -26,7 +26,8 @@
 	((obj), E_TYPE_KOLAB_BACKEND, EKolabBackendPrivate))
 
 /* This forces the GType to be registered in a way that
- * avoids a "statement with no effect" compiler warning. */
+ * avoids a "statement with no effect" compiler warning.
+ * FIXME Use g_type_ensure() once we require GLib 2.34. */
 #define REGISTER_TYPE(type) \
 	(g_type_class_unref (g_type_class_ref (type)))