// It is not defined on Solaris.
	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 {

pkg syscall (freebsd-386-cgo), const SYS_LSTAT ideal-int
pkg syscall (freebsd-386-cgo), const SYS_MKNODAT = 498
pkg syscall (freebsd-386-cgo), const SYS_STAT = 188
pkg syscall (freebsd-386-cgo), const SYS_STAT ideal-int
pkg syscall (freebsd-386-cgo), const SYS_STATFS = 396
pkg syscall (freebsd-amd64), const SYS_FSTAT = 189
pkg syscall (freebsd-amd64), const SYS_FSTATAT = 493

	{GOOS: "windows", GOARCH: "386"},
	{GOOS: "freebsd", GOARCH: "386", CgoEnabled: true},
	{GOOS: "freebsd", GOARCH: "386"},
	{GOOS: "freebsd", GOARCH: "amd64", CgoEnabled: true},
	{GOOS: "freebsd", GOARCH: "amd64"},
	{GOOS: "freebsd", GOARCH: "arm", CgoEnabled: true},
	{GOOS: "freebsd", GOARCH: "arm"},
	{GOOS: "freebsd", GOARCH: "arm64", CgoEnabled: true},
	{GOOS: "freebsd", GOARCH: "arm64"},
	{GOOS: "freebsd", GOARCH: "riscv64", CgoEnabled: true},

pkg syscall (freebsd-386-cgo), type SysProcAttr struct, Jail int #46259
pkg syscall (freebsd-386), type SysProcAttr struct, Jail int #46259
pkg syscall (freebsd-amd64-cgo), type SysProcAttr struct, Jail int #46259
pkg syscall (freebsd-amd64), type SysProcAttr struct, Jail int #46259
pkg syscall (freebsd-arm64-cgo), type SysProcAttr struct, Jail int #46259
pkg syscall (freebsd-arm64), type SysProcAttr struct, Jail int #46259

			// Copied from golang.org/x/sys/unix/dev_dragonfly.go.
			major := uint32((dev >> 8) & 0xff)
			minor := uint32(dev & 0xffff00ff)
			h.Devmajor, h.Devminor = int64(major), int64(minor)
		case "freebsd":
			// 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":

	// It is the caller's responsibility to arrange for it to be
	// freed, such as by calling C.free (be sure to include stdlib.h
	// if C.free is needed).
	func C.CString(string) *C.char

	// Go []byte slice to C array
	// The C array is allocated in the C heap using malloc.
	// It is the caller's responsibility to arrange for it to be
	// freed, such as by calling C.free (be sure to include stdlib.h
	// if C.free is needed).

// so for now it only builds on platforms that support that system call.
// TODO(#33974): use a more portable library for file locking.

//go:build darwin || dragonfly || freebsd || illumos || linux || netbsd || openbsd

// This program can be used as go_android_GOARCH_exec by the Go tool.
// It executes binaries on an android device using adb.
package main

import (
	"bytes"
	"errors"