// their dependencies).
	setToolFlags(pkgs...)

	setPGOProfilePath(pkgs)

	return pkgs
}

// setPGOProfilePath sets the PGO profile path for pkgs.
// In -pgo=auto mode, it finds the default PGO profile.
func setPGOProfilePath(pkgs []*Package) {
	updateBuildInfo := func(p *Package, file string) {
		// Don't create BuildInfo for packages that didn't already have it.

			return fmt.Errorf("marshal embedcfg: %v", err)
		}
		embedcfg = js
	}

	// Find PGO profile if needed.
	var pgoProfile string
	for _, a1 := range a.Deps {
		if a1.Mode != "preprocess PGO profile" {
			continue
		}
		if pgoProfile != "" {
			return fmt.Errorf("action contains multiple PGO profile dependencies")
		}
		pgoProfile = a1.built
	}

//		run through go run and go test respectively.
//	-pgo file
//		specify the file path of a profile for profile-guided optimization (PGO).
//		When the special name "auto" is specified, for each main package in the
//		build, the go command selects a file named "default.pgo" in the package's
//		directory if that file exists, and applies it to the (transitive)