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2715956f13
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
23 lines
496 B
Go
23 lines
496 B
Go
// Copyright 2009 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 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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if val < 0 {
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return "-" + itoa(-val)
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}
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var buf [32]byte // big enough for int64
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i := len(buf) - 1
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for val >= 10 {
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buf[i] = byte(val%10 + '0')
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i--
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val /= 10
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}
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buf[i] = byte(val + '0')
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return string(buf[i:])
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}
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