install flvtool2 on OpenBSD 5.0

cd /usr/src/
pkg_add -v ruby-1.8
ftp http://rubyforge.org/frs/download.php/17497/flvtool2-1.0.6.tgz
tar xzf flvtool2-1.0.6.tgz
cd flvtool2-1.0.6
ruby setup.rb config
ruby setup.rb setup
ruby setup.rb install
cd ..