$OpenBSD: patch-src_core_rand_fastrand_h,v 1.1 2017/07/03 22:14:20 sthen Exp $
--- src/core/rand/fastrand.h.orig	Mon May 15 22:50:42 2017
+++ src/core/rand/fastrand.h	Mon May 15 22:51:20 2017
@@ -22,9 +22,10 @@
 #ifndef _fastrand_h
 #define _fastrand_h
 
-
+#ifndef HAVE_ARC4RANDOM
 /* side effect: seeds also random w/ seed */
 void fastrand_seed(unsigned int seed);
+#endif
 /* generate a 32 bit random number */
 unsigned int fastrand(void);
 /* generate a random number between 0 and max inclusive ( 0 <= r <= max)
