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https://github.com/golang/go
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b5777571b3
This lets the client of go/build specify additional tags that
can be recognized in a // +build directive. For example,
a build for a custom environment like App Engine might
include "appengine" in the BuildTags list, so that packages
can be written with some files saying
// +build appengine (build only on app engine)
or
// +build !appengine (build only when NOT on app engine)
App Engine here is just a hypothetical context. I plan to use
this in the cmd/go sources to distinguish the bootstrap version
of cmd/go (which will not use networking) from the full version
using a custom tag. It might also be useful in App Engine.
Also, delete Build and Script, which we did not end up using for
cmd/go and which never got turned on for real in goinstall.
R=r, adg
CC=golang-dev
https://golang.org/cl/5554079
26 lines
682 B
Go
26 lines
682 B
Go
// Copyright 2011 The Go Authors. All rights reserved.
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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 !cgo
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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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func cgoLookupHost(name string) (addrs []string, err error, completed bool) {
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return nil, nil, false
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}
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func cgoLookupPort(network, service string) (port int, err error, completed bool) {
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return 0, nil, false
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}
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func cgoLookupIP(name string) (addrs []IP, err error, completed bool) {
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return nil, nil, false
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}
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func cgoLookupCNAME(name string) (cname string, err error, completed bool) {
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return "", nil, false
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}
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