I'm fairly sure the libc rules require that arc4random_addrandom,

dsl · dsl · commit 0496eb439329 · 2012-08-20T21:38:09.000Z
arc4random_buf, arc4random_stir and arc4random_uniform be weak.
diff --git a/lib/libc/gen/arc4random.c b/lib/libc/gen/arc4random.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: arc4random.c,v 1.19 2012/08/20 20:32:09 dsl Exp $	*/
+/*	$NetBSD: arc4random.c,v 1.20 2012/08/20 21:38:09 dsl Exp $	*/
 /*	$OpenBSD: arc4random.c,v 1.6 2001/06/05 05:05:38 pvalchev Exp $	*/
 
 /*
@@ -27,7 +27,7 @@
 
 #include <sys/cdefs.h>
 #if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: arc4random.c,v 1.19 2012/08/20 20:32:09 dsl Exp $");
+__RCSID("$NetBSD: arc4random.c,v 1.20 2012/08/20 21:38:09 dsl Exp $");
 #endif /* LIBC_SCCS and not lint */
 
 #include "namespace.h"
@@ -42,6 +42,10 @@ __RCSID("$NetBSD: arc4random.c,v 1.19 2012/08/20 20:32:09 dsl Exp $");
 
 #ifdef __weak_alias
 __weak_alias(arc4random,_arc4random)
+__weak_alias(arc4random_addrandom,_arc4random_addrandom)
+__weak_alias(arc4random_buf,_arc4random_buf)
+__weak_alias(arc4random_stir,_arc4random_stir)
+__weak_alias(arc4random_uniform,_arc4random_uniform)
 #endif
 
 struct arc4_stream {
diff --git a/lib/libc/include/namespace.h b/lib/libc/include/namespace.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: namespace.h,v 1.155 2012/07/09 21:25:46 rmind Exp $	*/
+/*	$NetBSD: namespace.h,v 1.156 2012/08/20 21:38:10 dsl Exp $	*/
 
 /*-
  * Copyright (c) 1997-2004 The NetBSD Foundation, Inc.
@@ -155,6 +155,10 @@
 #define alarm			_alarm
 #define alphasort		_alphasort
 #define arc4random		_arc4random
+#define arc4random_addrandom	_arc4random_addrandom
+#define arc4random_buf		_arc4random_buf
+#define arc4random_stir		_arc4random_stir
+#define arc4random_uniform	_arc4random_uniform
 #define asctime_r		_asctime_r
 #define asprintf		_asprintf
 #define atoll			_atoll
