+#ifdef HAVE_PAM_FAIL_DELAY
+ /* We handle delays ourself.*/
+ /* Don't set this to 0 (Linux bug workaround.) */
+# define PAM_NO_DELAY(pamh) pam_fail_delay ((pamh), 1)
+# else /* !HAVE_PAM_FAIL_DELAY */
+# define PAM_NO_DELAY(pamh) /* */
+# endif /* !HAVE_PAM_FAIL_DELAY */
+