| // 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) { |
| 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) |
| } |
| } |