DRAFT … From http://blog.fiveruns.com/2008/3/3/compiling-ruby-rubygems-and-rails-on-ubuntu

Install pre-requisites

   1  apt-get -y install build-essential libssl-dev libreadline5-dev zlib1g-dev

Download and install

   1  cd /usr/local/src
   2  
   3  wget http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.6.tar.gz
   4  
   5  tar zxvf ruby-1.8.6.tar.gz
   6  
   7  cd ruby-1.8.6.tar.gz
   8  
   9  ./configure --prefix=/usr/local --with-openssl-dir=/usr --with-readline-dir=/usr --with-zlib-dir=/usr
  10  
  11  make
  12  make install
  13  
  14  ruby -ropenssl -rzlib -rreadline -e "puts :success" 
  15