-#ifndef HEADER_LIST_H
-#define HEADER_LIST_H 1
+#ifndef __LIB_KERNEL_LIST_H
+#define __LIB_KERNEL_LIST_H
/* Doubly linked list.
void list_unique (struct list *, struct list *duplicates,
list_less_func *, void *aux);
-#endif /* list.h */
+#endif /* lib/kernel/list.h */