setNoOpt()
	goldflags = os.Getenv("GO_LDFLAGS") // we were using $BOOT_GO_LDFLAGS until now
	goBootstrap := pathf("%s/go_bootstrap", tooldir)
	if debug {
		run("", ShowOutput|CheckExit, pathf("%s/compile", tooldir), "-V=full")
		copyfile(pathf("%s/compile1", tooldir), pathf("%s/compile", tooldir), writeExec)
	}

	// To recap, so far we have built the new toolchain
	// (cmd/asm, cmd/cgo, cmd/compile, cmd/link)

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build gccgo

package build

import "runtime"

// getToolDir returns the default value of ToolDir.
func getToolDir() string {
	return envOr("GCCGOTOOLDIR", runtime.GCCGOTOOLDIR)

// license that can be found in the LICENSE file.

//go:build gc

package build

import (
	"path/filepath"
	"runtime"
)

// getToolDir returns the default value of ToolDir.
func getToolDir() string {
	return filepath.Join(runtime.GOROOT(), "pkg/tool/"+runtime.GOOS+"_"+runtime.GOARCH)

			// linker).
			//
			// This matches the initialization of ToolDir in go/build, except for
			// using ctxt.GOROOT and the installed GOOS and GOARCH rather than the
			// GOROOT, GOOS, and GOARCH reported by the runtime package.
			build.ToolDir = filepath.Join(GOROOTpkg, "tool", installedGOOS+"_"+installedGOARCH)
		}
	}
}

// Experiment configuration.
var (

// ToolPath returns the path at which we expect to find the named tool
// (for example, "vet"), and the error (if any) from statting that path.
func ToolPath(toolName string) (string, error) {
	toolPath := filepath.Join(build.ToolDir, toolName) + cfg.ToolExeSuffix()
	err := toolStatCache.Do(toolPath, func() error {
		_, err := os.Stat(toolPath)
		return err
	})
	return toolPath, err
}

		}
		base.SetExitStatus(1)
		return
	}
}

// listTools prints a list of the available tools in the tools directory.
func listTools() {
	f, err := os.Open(build.ToolDir)
	if err != nil {
		fmt.Fprintf(os.Stderr, "go: no tool directory: %s\n", err)
		base.SetExitStatus(2)
		return
	}
	defer f.Close()
	names, err := f.Readdirnames(-1)
	if err != nil {

	for _, name := range bootstrapDirs {
		if !strings.HasPrefix(name, "cmd/") {
			continue
		}
		name = name[len("cmd/"):]
		if !strings.Contains(name, "/") {
			copyfile(pathf("%s/%s%s", tooldir, name, exe), pathf("%s/bin/%s%s", workspace, name, exe), writeExec)
		}
	}

	if vflag > 0 {
		xprintf("\n")
	}
}

		{Name: "GOROOT", Value: cfg.GOROOT},
		{Name: "GOSUMDB", Value: cfg.GOSUMDB, Changed: cfg.GOSUMDBChanged},
		{Name: "GOTMPDIR", Value: cfg.Getenv("GOTMPDIR")},
		{Name: "GOTOOLCHAIN"},
		{Name: "GOTOOLDIR", Value: build.ToolDir},
		{Name: "GOVCS", Value: cfg.GOVCS},
		{Name: "GOVERSION", Value: runtime.Version()},
		{Name: "GODEBUG", Value: os.Getenv("GODEBUG")},
		{Name: "GOTELEMETRY", Value: telemetry.Mode()},

	}
	if n >= 1 && (knownOS[l[n-1]] || knownArch[l[n-1]]) {
		return ctxt.matchTag(l[n-1], allTags)
	}
	return true
}

// ToolDir is the directory containing build tools.
var ToolDir = getToolDir()

// IsLocalImport reports whether the import path is
// a local import path, like ".", "..", "./foo", or "../foo".
func IsLocalImport(path string) bool {

		if InstallTargetDir(p) == ToTool {
			// This is for 'go tool'.
			// Override all the usual logic and force it into the tool directory.
			if cfg.BuildToolchainName == "gccgo" {
				p.Target = filepath.Join(build.ToolDir, elem)
			} else {
				p.Target = filepath.Join(cfg.GOROOTpkg, "tool", full)
			}
		}
	} else if p.Internal.Local {
		// Local import turned into absolute path.
		// No permanent install target.