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// Copyright 2019 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package main
import (
"path/filepath"
"strings"
)
func processSysrootFlag(builder *commandBuilder) string {
fromUser := false
for _, arg := range builder.args {
if arg.fromUser && strings.HasPrefix(arg.value, "--sysroot=") {
fromUser = true
break
}
}
sysroot, syrootPresent := builder.env.getenv("SYSROOT")
if syrootPresent {
builder.updateEnv("SYSROOT=")
}
if sysroot == "" {
// Use the bundled sysroot by default.
sysroot = filepath.Join(builder.rootPath, "usr", builder.target.target)
}
if !fromUser {
builder.addPreUserArgs("--sysroot=" + sysroot)
}
return sysroot
}
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