define H2O_RAND_MAX
* Wrapper of rand (3) or arc4random (3). Guaranteed to be multi-thread safe.
*/
#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
+#define H2O_RAND_MAX UINT32_MAX
#define h2o_rand() arc4random()
#else
+#define H2O_RAND_MAX RAND_MAX
#define H2O_DEFINE_RAND 1
int h2o_rand(void);
#endif
