Merge "Add first_perfer32 option to compile_multilib"

		} else {

			buildTargets = firstTarget(targets, "lib64", "lib32")

		}

	case "first_prefer32":

		buildTargets = firstTarget(targets, "lib32", "lib64")

	case "prefer32":

		buildTargets = filterMultilibTargets(targets, "lib32")

		if len(buildTargets) == 0 {

			buildTargets = filterMultilibTargets(targets, "lib64")

		}

	default:

		return nil, fmt.Errorf(`compile_multilib must be "both", "first", "32", "64", or "prefer32" found %q`,

		return nil, fmt.Errorf(`compile_multilib must be "both", "first", "32", "64", "prefer32" or "first_prefer32" found %q`,

			multilib)

	}