Ruby - mysql - Error Authentication protocol not supported

On Windows XP Prof system, using Ruby 1.8.4 & mysql-ruby-2.7.1 (pure
ruby interface),
myswl 5.0 server, and rubyuser is defined as a mysql user, I am trying
to run the following sample program and getting the error:

*** C:/ruby/lib/ruby/1.8/mysql.rb:453:in read': Client does not support authentication protocol requested by server; consider upgrading MySQL client (Mysql::Error) from C:/ruby/lib/ruby/1.8/mysql.rb:130:inreal_connect’
from C:/ruby/lib/ruby/1.8/mysql.rb:91:in `initialize’
from C:/0-dwn/mysql/ruby-mysql-0.2.6/sampledb0.rb:5

I am able to perform all of the commands via a commandline console.

Please help me with this error message, what do I need to change to get
it working

Thanks,
John

========Sampledb.rb =========================================

require “mysql”

dbname = “sampledb”

m = Mysql.new(“localhost”, “root”, “passwd”)
r = m.query(“CREATE DATABASE #{dbname}”)
m.select_db(dbname)
m.query(“CREATE TABLE words
(
german varchar(30),
english varchar(30),
french varchar(30)
)”
)

m.query(“INSERT INTO words VALUES(‘Adler’, ‘eagle’, ‘aigle’)”)
m.query(“INSERT INTO words VALUES(‘Haus’, ‘house’, ‘maison’)”)
m.query(“INSERT INTO words VALUES(‘Name’, ‘name’, ‘nom’)”)
m.query(“INSERT INTO words VALUES(‘Wal’, ‘whale’, ‘baleine’)”)
m.query(“GRANT ALL ON sampledb.* TO rubyuser@localhost IDENTIFIED by
‘ruby’”)

m.close