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https://github.com/golang/go
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build: add build comments to core packages
The go/build package already recognizes system-specific file names like mycode_darwin.go mycode_darwin_386.go mycode_386.s However, it is also common to write files that apply to multiple architectures, so a recent CL added to go/build the ability to process comments listing a set of conditions for building. For example: // +build darwin freebsd openbsd/386 says that this file should be compiled only on OS X, FreeBSD, or 32-bit x86 OpenBSD systems. These conventions are not yet documented (hence this long CL description). This CL adds build comments to the multi-system files in the core library, a step toward making it possible to use go/build to build them. With this change go/build can handle crypto/rand, exec, net, path/filepath, os/user, and time. os and syscall need additional adjustments. R=golang-dev, r, gri, r, gustavo CC=golang-dev https://golang.org/cl/5011046
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd
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// Unix cryptographically secure pseudorandom number
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// generator.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd
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package exec
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import (
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd
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package net
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/*
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build openbsd
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// Stub cgo routines for systems that do not use cgo to do network lookups.
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package net
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux
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package net
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/*
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd
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// DNS client: see RFC 1035.
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// Has to be linked into package net for Dial.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd
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// Read system DNS config from /etc/resolv.conf
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package net
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd
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package net
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import (
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd
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package net
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import (
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd openbsd
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// Network interface identification for BSD variants
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package net
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build plan9
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// Network interface identification
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package net
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd windows
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// (Raw) IP sockets
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package net
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd windows
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package net
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import (
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd
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package net
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import (
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@ -52,7 +54,7 @@ func LookupCNAME(name string) (cname string, err os.Error) {
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// LookupSRV tries to resolve an SRV query of the given service,
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// protocol, and domain name, as specified in RFC 2782. In most cases
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// the proto argument can be the same as the corresponding
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// Addr.Network(). The returned records are sorted by priority
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// Addr.Network(). The returned records are sorted by priority
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// and randomized by weight within a priority.
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func LookupSRV(service, proto, name string) (cname string, addrs []*SRV, err os.Error) {
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target := "_" + service + "._" + proto + "." + name
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd
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package net
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import (
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd
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// Read system port mappings from /etc/services
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package net
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd openbsd
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package net
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import (
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd windows
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// Sockets
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package net
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd
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// Sockets for BSD variants
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package net
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd windows
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// TCP sockets
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package net
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd windows
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// UDP sockets
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package net
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd windows
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// Unix domain sockets
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package net
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd
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package os
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import (
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd
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// Unix environment variables.
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package os
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd windows
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package os
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import syscall "syscall"
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd windows
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package os
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import (
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd
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package os
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import (
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd windows
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package os
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import (
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd
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package os
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import (
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd
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package os
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const (
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build plan9
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package os
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func itoa(val int) string { // do it here rather than with fmt to avoid dependency
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd openbsd
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// os code shared between *BSD systems including OS X (Darwin)
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// and FreeBSD.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build openbsd plan9 windows
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package user
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import (
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux
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package user
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import (
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match.go\
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path.go\
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GOFILES+=$(GOFILES_$(GOOS))
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include ../../Make.pkg
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd
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package filepath
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import "strings"
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd openbsd
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// Berkeley packet filter for BSD variants
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package syscall
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd
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// Fork, exec, wait, etc.
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package syscall
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd openbsd
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// Routing sockets and messages
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package syscall
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd
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// Socket control messages
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package syscall
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd openbsd
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// BSD system call wrappers shared by *BSD based systems
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// including OS X (Darwin) and FreeBSD. Like the other
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// syscall_*.go files it is compiled as Go code but also
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd
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package syscall
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import (
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd
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package time
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import (
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd plan9
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package time
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import "sync"
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd
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// Parse "zoneinfo" time zone file.
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// This is a fairly standard file format used on OS X, Linux, BSD, Sun, and others.
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// See tzfile(5), http://en.wikipedia.org/wiki/Zoneinfo,
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