Ok, let's see here :) looking through my stuff I find expand unicode property (eg \p{Print}) to regex character class range so this seems to work

$ perl -Mutf8 -le " utf8->SWASHNEW(q/Print/) ; print for %INC"
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A cleaner (no warnings) version seems to be

$ perl -le " qr{\P{Print}}; print for %INC; "
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So you might grab perluniprops and qr// up a storm or File::Find and require up a storm

Anyway you look at it it's all kludges -- there needs to be an official API for this

preload_unicore ();
print for keys %INC;
sub preload_unicore {
    use File::Find::Rule;
    use Config();
    my $privlib = $Config::Config{installprivlib}.'/';
    my @files = File::Find::Rule->file->name(qr/\.pl$/)->in( $privlib.
+'unicore/' );
    tr{\\}{/} for $privlib, @files;
    s{^\Q$privlib\E}{} for @files;
    eval { require "$_"} for @files;
}
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