}
	if opts.cpu != "" {
		run = append(run, "-cpu="+opts.cpu)
	}
	if t.json {
		run = append(run, "-json")
	}

	if opts.gcflags != "" {
		build = append(build, "-gcflags=all="+opts.gcflags)
	}
	if opts.ldflags != "" {
		build = append(build, "-ldflags="+opts.ldflags)
	}
	if opts.buildmode != "" {
		build = append(build, "-buildmode="+opts.buildmode)
	}

	pkgs = opts.packages()

		pkgs := goDirPackages(t.T, longdir, singlefilepkgs)
		// Split flags into gcflags and ldflags
		ldflags := []string{}
		for i, fl := range flags {
			if fl == "-ldflags" {
				ldflags = flags[i+1:]
				flags = flags[0:i]
				break
			}
		}

		importcfgfile := importcfg(pkgs)

		for i, pkg := range pkgs {
			_, err := compileInDir(runcmd, longdir, flags, importcfgfile, pkg.name, pkg.files...)

	skipIfGccgo(t, "gccgo does not support -ldflags -X")
	tooSlow(t, "compiles and links a binary")

	tg := testgo(t)
	defer tg.cleanup()
	tg.parallel()
	tg.tempFile("main.go", `package main
		var extern string
		func main() {
			println(extern)
		}`)
	tg.run("run", "-ldflags", `-X "main.extern=hello world"`, tg.path("main.go"))
	tg.grepStderr("^hello world", `ldflags -X "main.extern=hello world"' failed`)
}

			}
			args[i] = arg
		}

		switch verb {
		case "CFLAGS", "CPPFLAGS", "CXXFLAGS", "FFLAGS", "LDFLAGS":
			// Change relative paths to absolute.
			ctxt.makePathsAbsolute(args, di.Dir)
		}

		switch verb {
		case "CFLAGS":
			di.CgoCFLAGS = append(di.CgoCFLAGS, args...)
		case "CPPFLAGS":
			di.CgoCPPFLAGS = append(di.CgoCPPFLAGS, args...)

		// main branch for day-to-day work on the Go toolchain itself can
		// still have full paths for stack traces for compiler crashes and the like.
		env = append(env, "GOFLAGS=-trimpath -ldflags=-w -gcflags=cmd/...=-dwarf=false")
	}
	return env
}

var toolchain = []string{"cmd/asm", "cmd/cgo", "cmd/compile", "cmd/link", "cmd/preprofile"}

// The bootstrap command runs a build from scratch,

	}
	if strings.HasPrefix(s, "sizeof_") {
		return "sizeof(" + cname(s[len("sizeof_"):]) + ")"
	}
	return s
}

// ProcessCgoDirectives processes the import C preamble:
//  1. discards all #cgo CFLAGS, LDFLAGS, nocallback and noescape directives,
//     so they don't make their way into _cgo_export.h.
//  2. parse the nocallback and noescape directives.
func (f *File) ProcessCgoDirectives() {

		fc = f
	}
	fm := creat(*objDir + "_cgo_main.c")

	var gccgoInit strings.Builder

	if !*gccgo {
		for _, arg := range p.LdFlags {
			fmt.Fprintf(fgo2, "//go:cgo_ldflag %q\n", arg)
		}
	} else {
		fflg := creat(*objDir + "_cgo_flags")
		for _, arg := range p.LdFlags {
			fmt.Fprintf(fflg, "_CGO_LDFLAGS=%s\n", arg)
		}
		fflg.Close()
	}

	// Write C main file for using gcc to resolve imports.

		}
	})

	flags := hostlinkArchArgs(arch)

	moreFlags := trimLinkerArgv(append(flagExtldflags, ldflag...))
	flags = append(flags, moreFlags...)

	if altLinker != "" {
		flags = append(flags, "-fuse-ld="+altLinker)
	}
	trivialPath := filepath.Join(*flagTmpdir, "trivial.c")
	outPath := filepath.Join(*flagTmpdir, "a.out")
	flags = append(flags, "-o", outPath, flag, trivialPath)

// newFlagSetWithGlobals constructs a new pflag.FlagSet with global flags registered
// on it.
func newFlagSetWithGlobals() *pflag.FlagSet {
	fs := pflag.NewFlagSet("", pflag.ExitOnError)
	// set the normalize func, similar to k8s.io/component-base/cli//flags.go:InitFlags
	fs.SetNormalizeFunc(cliflag.WordSepNormalizeFunc)
	// explicitly add flags from libs that register global flags
	options.AddGlobalFlags(fs)
	return fs
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func Chflags(path string, flags int) (err error) {
	var _p0 *byte
	_p0, err = BytePtrFromString(path)
	if err != nil {
		return
	}
	_, _, e1 := syscall_syscall(libc_chflags_trampoline_addr, uintptr(unsafe.Pointer(_p0)), uintptr(flags), 0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}