Displays a message that describes how to build RI
data.
# File lib/rdoc/ri/display.rb, line 377
def warn_no_database
output = @formatter.output
output.puts "No ri data found"
output.puts
output.puts "If you've installed Ruby yourself, you need to generate documentation using:"
output.puts
output.puts " make install-doc"
output.puts
output.puts "from the same place you ran `make` to build ruby."
output.puts
output.puts "If you installed Ruby from a packaging system, then you may need to"
output.puts "install an additional package, or ask the packager to enable ri generation."
end
