extern char *const xalloc_msg_memory_exhausted;
/* FIXME: describe */
-extern void (*xalloc_fail_func) ();
+extern void (*xalloc_fail_func) (int);
void *xmalloc PARAMS ((size_t n)) __attribute__ ((__malloc__));
void *xmalloc_and_zero PARAMS ((size_t n)) __attribute__ ((__malloc__));
void *xrealloc PARAMS ((void *p, size_t n)) __attribute__ ((__malloc__));
char *xstrdup PARAMS ((const char *s)) __attribute__ ((__malloc__));
+
+extern int xasprintf(char **strp, const char *fmt, ...);
+extern int xvasprintf(char **strp, const char *fmt, va_list ap);