print $package::var;

##</code><code>##

    no strict 'refs';
    print ${$package.'::var'};

##</code><code>##

    require $package;

##</code><code>##

        require Foo::Bar;    # a splendid bareword

##</code><code>##

        $class = 'Foo::Bar';
        require $class;      # $class is not a bareword 
    #or            
        require "Foo::Bar";  # not a bareword because of the ""

##</code><code>##

        eval "require $class";