+#if HAVE_SYSLOG
+# define syslog(...) syslog(__VA_ARGS__)
+# if HAVE_OPENLOG
+# define openlog(...) openlog(__VA_ARGS__)
+# else
+# define openlog(...) /**/
+# endif
+# if HAVE_CLOSELOG
+# define closelog(...) closelog(__VA_ARGS__)
+# else
+# define closelog(...) /**/
+# endif
+#else
+# define syslog(...) /**/
+# define openlog(...) /**/
+# define closelog(...) /**/
+#endif