#!/usr/bin/perl --
{
# you get no indication that the problem is that PerlIO/encoding.pm
# is missing, same when you rename PerlIO/encoding.pm
    $INC{'PerlIO/encoding.pm'}=__FILE__; 
    open my($in), '<:encoding(utf8)', __FILE__
      or die int($!)," $!\n",int($^E)," $^E ";
    close $in;
}