+#ifdef HAVE_ARC4RANDOM
+# define CUPS_RAND() arc4random()
+# define CUPS_SRAND(v) arc4random_stir()
+#elif defined(HAVE_RANDOM)
+# define CUPS_RAND() random()
+# define CUPS_SRAND(v) srandom(v)
+#elif defined(HAVE_LRAND48)
+# define CUPS_RAND() lrand48()
+# define CUPS_SRAND(v) srand48(v)
+#else
+# define CUPS_RAND() rand()
+# define CUPS_SRAND(v) srand(v)
+#endif /* HAVE_ARC4RANDOM */
+