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    };
    (my $example_file = $main_file) =~ s!\.pm$!/Examples.pm!;
    my $examples = `$perl -w examples/gen_examples_pod.pl`;
    if ($examples) {
        warn "(Re)Creating $example_file\n";
        $examples =~ s/\r\n/\n/g;
        update_file( $example_file, $examples );
    };
};
 
sub update_file {
    my( $filename, $new_content ) = @_;
    my $content;
    if( -f $filename ) {
        open my $fh, '<', $filename
            or die "Couldn't read '$filename': $!";
        binmode $fh;
        local $/;
        $content = <$fh>;
    };