+static gint slist_path_cmp(const gchar *a, const gchar *b)
+{
+ return strcmp(a, b);
+}
+
+typedef GSList* (*GSListFunc) (gpointer list, gconstpointer data);
+
+static GSList* slist_path_add(GSList *list, gpointer data, GSListFunc func)
+{
+ g_assert(func);
+
+ if (!data)
+ return list;
+
+ if (!g_slist_find_custom(list, data, (GCompareFunc) slist_path_cmp))
+ list = func(list, data);
+
+ return list;
+}
+