+#define xmalloc_trav(s) xmalloc_trav_f(s, __FILE__, __LINE__)
+
+YAZ_EXPORT void *xrealloc_f (void *o, size_t size, const char *file, int line);
+YAZ_EXPORT void *xmalloc_f (size_t size, const char *file, int line);
+YAZ_EXPORT void *xcalloc_f (size_t nmemb, size_t size,
+ const char *file, int line);
+YAZ_EXPORT char *xstrdup_f (const char *p, const char *file, int line);
+YAZ_EXPORT void xfree_f (void *p, const char *file, int line);
+YAZ_EXPORT void xmalloc_trav_f(const char *s, const char *file, int line);