For posterity, here''s some tips for generating FXRuby rdocs (html and ri). To make the html docs: $ rdoc -o doc/api -t "FXRuby 1.2" -m rdoc-sources/README.rdoc rdoc-sources/*.rb rdoc-sources/README.rdoc lib/fox12/*.rb To make ri docs in the usual place for installed 3rd party libs: $ su # rdoc -R rdoc-sources/*.rb lib/fox12/*.rb Or if you prefer to keep the ri docs in your own home dir: $ rdoc -r rdoc-sources/*.rb lib/fox12/*.rb Note that the lib/fox12 stuff comes last so that superclass info is correct.