sub VERSION {
    my ($module, $version) = @_;
    return $VERSION unless $version; # satisfy UNIVERSAL::VERSION()

    do { require File::Spec;
         require File::Basename;
        my $file = File::Spec->catfile( split /::/, $module ) . ".pm";
         my $dir;
        $dir = File::Basename::dirname( $dir || $INC{$file} ) 
                     for 0 .. $module =~ /::/g;

        for my $dir ( local @INC = grep { !/^$dir$/ && -e File::Spec->catfile( $_, $file ) } @INC ) {
            open MOD, "<", File::Spec->catfile( $dir, $file ) or warn "$@";
            grep {
                /(.*VERSION.*)/ 
                and eval "eval '$1' == $version" 
                and do {
                    delete $INC{$file};
                    eval " require $module; $module->VERSION " == $version and do return $version ;
                    shift @INC;
                }
            } <MOD>;
        }

        require Carp;
        Carp::croak(" Loading $module ($version) failed. ");

    } unless ($version == $VERSION);
}