}
	fmt.Fprintf(&icfg, "modinfo %q\n", modload.ModInfoData(info))
	return b.Shell(a).writeFile(file, icfg.Bytes())
}

// PkgconfigCmd returns a pkg-config binary name
// defaultPkgConfig is defined in zdefaultcc.go, written by cmd/dist.
func (b *Builder) PkgconfigCmd() string {
	return envList("PKG_CONFIG", cfg.DefaultPkgConfig)[0]
}

// splitPkgConfigOutput parses the pkg-config output into a slice of flags.

		{Name: "CGO_CPPFLAGS", Value: join(cppflags)},
		{Name: "CGO_CXXFLAGS", Value: join(cxxflags)},
		{Name: "CGO_FFLAGS", Value: join(fflags)},
		{Name: "CGO_LDFLAGS", Value: join(ldflags)},
		{Name: "PKG_CONFIG", Value: b.PkgconfigCmd()},
		{Name: "GOGCCFLAGS", Value: join(cmd[3:])},
	}

	for i := range ret {
		ev := &ret[i]
		switch ev.Name {
		case "GOGCCFLAGS": // GOGCCFLAGS cannot be modified
		case "CGO_CPPFLAGS":