如何让分叉的管道在Perl中在Windows上工作?

我试图将Perl脚本从Unix移植到Windows,但由于open函数中不支持分叉管道,我几乎无法让它工作。代码如下:

sub p4_get_file_content {
    my $filespec = shift;
    return 'Content placeholder!' if ($options{'dry-run'});
    debug("p4_get_file_content: $filespec\n");
    local *P4_OUTPUT;
    local $/ = undef;
    my $pid = open(P4_OUTPUT, "-|");
    die "Fork failed: $!" unless defined $pid;
    if ($pid == 0) { # child
        my $p4 = p4_init();
        my $result = undef;
        $result = $p4->Run('print', $filespec);
        die $p4->Errors() if $p4->ErrorCount();
        if (ref $result eq 'ARRAY') {
            for (my $i = 1; $i < @$result; $i++) {
                print $result->[$i];
            }
        }
        $p4->Disconnect();
        exit 0;
    }
    my $content = <P4_OUTPUT>;
    close(P4_OUTPUT) or die "Close failed: ($?) $!";
    return $content;
}

错误是:

'-' is not recognized as an internal or external command,
operable program or batch file.

有人知道怎么做吗?谢谢!

迈克