A parser which is created by Racc requires Racc runtime. You should re-distribute Racc runtime with your parser, or user need to install Racc.
A Ruby script "pack.rb" helps you to include Racc runtime into your own package. Usage of pack.rb is:
/usr/src/racc-xxx/ $ ruby pack.rb TARGET/This copies Racc runtime under directory TARGET/ . (attention: pack.rb will clears TARGET/ !!)
And the way to install Racc runtime when your installation is:
cd TARGET/ ruby setup.rbor, from Ruby script,
Dir.chdir 'TARGET/' system "ruby setup.rb"