#define EMPTY_LIST(list) (!(list).head->next)
+
+#ifndef _BIRD_LISTS_C_
+#define LIST_INLINE static inline
+#include "lib/lists.c"
+#undef LIST_INLINE
+
+#else /* _BIRD_LISTS_C_ */
+#define LIST_INLINE
void add_tail(list *, node *);
void add_head(list *, node *);
void rem_node(node *);
void add_tail_list(list *, list *);
void init_list(list *);
void insert_node(node *, node *);
-
-#ifndef _BIRD_LISTS_C_
-#define LIST_INLINE extern inline
-#include "lib/lists.c"
-#undef LIST_INLINE
-#else
-#define LIST_INLINE
#endif
#endif