Index: glib-networking-2.37.4/tls/gnutls/gtlsbackend-gnutls.c
===================================================================
--- glib-networking-2.37.4.orig/tls/gnutls/gtlsbackend-gnutls.c
+++ glib-networking-2.37.4/tls/gnutls/gtlsbackend-gnutls.c
@@ -103,8 +103,10 @@ g_tls_backend_gnutls_real_create_databas
   const gchar *anchor_file = NULL;
 #ifdef GTLS_SYSTEM_CA_FILE
   anchor_file = GTLS_SYSTEM_CA_FILE;
-#endif
   return g_tls_file_database_new (anchor_file, error);
+#else
+  return NULL;
+#endif
 }
 
 static void
@@ -144,11 +146,13 @@ g_tls_backend_gnutls_get_default_databas
                      error->message);
           g_clear_error (&error);
         }
+#ifdef GTLS_SYSTEM_CA_FILE
       else
         {
           g_assert (result);
           self->priv->default_database = g_object_ref (result);
         }
+#endif
     }
 
   g_mutex_unlock (&self->priv->mutex);