var nproc int
	setNproc := true
	switch runtime.GOOS {
	default:
		setNproc = false
	case "aix":
		nproc = 9
	case "linux":
		nproc = 6
	case "darwin", "dragonfly", "freebsd", "netbsd", "openbsd":
		nproc = 7
	}
	if setNproc {
		var rlim syscall.Rlimit
		if syscall.Getrlimit(nproc, &rlim) == nil {
			max := int(rlim.Cur) / (threads + 5)
			if attempts > max {

// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris

#include <pthread.h>
#include "_cgo_export.h"

static void*
addThread(void *p)
{
	int i, max;
	
	max = *(int*)p;
	for(i=0; i<max; i++)
		Add(i);
	return 0;
}

void

			// Copied from golang.org/x/sys/unix/dev_freebsd.go.
			major := uint32((dev >> 8) & 0xff)
			minor := uint32(dev & 0xffff00ff)
			h.Devmajor, h.Devminor = int64(major), int64(minor)
		case "netbsd":
			// Copied from golang.org/x/sys/unix/dev_netbsd.go.
			major := uint32((dev & 0x000fff00) >> 8)
			minor := uint32((dev & 0x000000ff) >> 0)
			minor |= uint32((dev & 0xfff00000) >> 12)
			h.Devmajor, h.Devminor = int64(major), int64(minor)

// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build darwin || freebsd || netbsd

package tar

import (
	"syscall"
	"time"
)

func statAtime(st *syscall.Stat_t) time.Time {
	return time.Unix(st.Atimespec.Unix())
}

func statCtime(st *syscall.Stat_t) time.Time {
	return time.Unix(st.Ctimespec.Unix())