#!./perl

BEGIN {
    if (!PerlIO::Layer->find('perlio') || $ENV{PERLIO} eq 'stdio') {
	print "1..0 # Skip: not perlio\n";
	exit 0;
    }
    require "../../t/test.pl";
}
use strict;
use warnings;

plan 1;

# [perl #76474]
{
  my $stderr = runperl(
     switches => ['-MIPC::Open3', '-w'],
     prog => 'open3(q _<&1_, my $out, undef, $ENV{PERLEXE}, q_-e0_)',
     stderr => 1,
     stdin => '',
  );
  unlike $stderr, qr/open3/,
   "dup STDIN in a child process by using its file descriptor";
}