+{ return NULL; }
+uschar *
+string_sprintf_trc(const char * a, const uschar * b, unsigned c, ...)
+{ return NULL; }
+BOOL
+string_format_trc(uschar * buf, int len, const uschar * func, unsigned line,
+ const char * fmt, ...)
+{ return FALSE; }
+
+
+struct global_flags f;
+unsigned int log_selector[1];
+uschar * queue_name;
+BOOL split_spool_directory;