$OpenBSD: patch-configure_ac,v 1.2 2015/11/22 08:06:36 ajacoutot Exp $
--- configure.ac.orig	Fri Nov 20 10:41:17 2015
+++ configure.ac	Sat Nov 21 09:05:39 2015
@@ -547,7 +547,7 @@ AC_CHECK_FUNCS(strdup strndup strerror)
 AC_CHECK_FUNCS(finite isnand fp_class class fpclass)
 AC_CHECK_FUNCS(strftime localtime gettimeofday ftime)
 AC_CHECK_FUNCS(stat _stat signal)
-AC_CHECK_FUNCS(rand rand_r srand time)
+AC_CHECK_FUNCS(arc4random rand rand_r srand time)
 AC_CHECK_FUNCS(isascii mmap munmap putenv)
 
 AH_VERBATIM([HAVE_MUNMAP_AFTER],[/* mmap() is no good without munmap() */
