kern/49883: sysctl node `net.inet.ip.dad_count' is not created even if arp is enabled.

[qfh02545%nifty.com@localhost]

>Number:         49883
>Category:       kern
>Synopsis:       sysctl node `net.inet.ip.dad_count' is not created even if arp is enabled.
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri May 08 13:45:00 +0000 2015
>Originator:     HITOSHI Osada
>Release:        NetBSD-current 20150508
>Organization:
None
>Environment:
NetBSD athlon5350 7.99.15 NetBSD 7.99.15 (ATHLON5350) #0: Fri May  8 21:59:10 JST 2015  that@athlon5350:/tmp/obj/sys/arch/amd64/compile/ATHLON5350 amd6
>Description:
ip_input.c,v 1.322 forgets #include "arp.h"

>How-To-Repeat:
build kernel with ip_input.c,v 1.322
>Fix:
#include "arp.h"