Syntax of using Perl5 modules?

[Autrijus Tang]

So, this now works in Pugs with (with a "env PUGS_EMBED=perl5" build):

    use Digest--perl5;

    my $cxt = Digest.SHA1;
    $cxt.add('Pugs!');

    # This prints: 66db83c4c3953949a30563141f08a848c4202f7f
    say $cxt.hexdigest;

This includes the "Digest.pm" from Perl 5.  DBI.pm, CGI.pm etc will
also work.

Now my question is, is my choice of using the "perl5" namespace indicator a 
sane way to handle this?  Is it okay for Perl 6 to fallback to using Perl 5
automatically?  Or should I use something else than "use" entirely?

Thanks,
/Autrijus/

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