#include <stdlib.h>
#include <getopt.h>
#include <limits.h>
-#if TIME_WITH_SYS_TIME
+
+#if defined(HAVE_SYS_TIME_H)
# include <sys/time.h>
+#endif
+
+#if defined(HAVE_TIME_H)
# include <time.h>
-#else
-# if HAVE_SYS_TIME_H
-# include <sys/time.h>
-# else
-# include <time.h>
-# endif
#endif