[recipes] Survive without D-Bus

[Matthias Clasen <matthiasc src gnome org>]

commit d77113147d3e0a28d9446bf4c2fb98178038b6a9
Author: Matthias Clasen <mclasen Matthiass-MBP home>
Date:   Thu Mar 2 06:47:42 2017 -0500

    Survive without D-Bus
    
    We already have error handling code if we don't find
    the service we need, we can just use the same code
    when we don't find the bus itself.

 src/gr-utils.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/gr-utils.c b/src/gr-utils.c
index af74a4f..56a7e6b 100644
--- a/src/gr-utils.c
+++ b/src/gr-utils.c
@@ -447,6 +447,9 @@ portals_available (void)
                 g_autoptr(GDBusConnection) bus = NULL;
 
                 bus = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, NULL);
+               if (!bus)
+                       return FALSE;
+
                 portal = g_dbus_proxy_new_sync (bus,
                                                 0,
                                                 NULL,