needed to make inpcb in kernel MP safe. To build sysctl and libkvm
based programs, we have to export it to userland.
OK claudio@
-/* $OpenBSD: in_pcb.h,v 1.125 2022/03/14 22:38:43 tb Exp $ */
+/* $OpenBSD: in_pcb.h,v 1.126 2022/03/20 19:16:29 bluhm Exp $ */
/* $NetBSD: in_pcb.h,v 1.14 1996/02/13 23:42:00 christos Exp $ */
/*
#define _NETINET_IN_PCB_H_
#include <sys/queue.h>
+#include <sys/mutex.h>
#include <sys/refcnt.h>
#include <netinet/ip6.h>
#include <netinet6/ip6_var.h>