_DECLARE_XSTRTOL (xstrtoimax, intmax_t)
_DECLARE_XSTRTOL (xstrtoumax, uintmax_t)
+#if HAVE_LONG_LONG_INT
+_DECLARE_XSTRTOL (xstrtoll, long long int)
+_DECLARE_XSTRTOL (xstrtoull, unsigned long long int)
+#endif
+
#ifndef __attribute__
# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8)
# define __attribute__(x)