Host Ruby required error while installing ruby 1.9.3

Host Ruby required error while installing ruby 1.9.3

I am installing ruby 1.9.3 on Ubuntu 12.04 and receive the following error
executable host ruby is required. use --with-baseruby option
After some research I found that I need an older version of ruby to
install ruby. Many solutions involved using ruby 1.8 as a base, compiling
and installing it from source, then installing 1.9 BUT ruby version 1.8
has been removed...farewell. What can I use as a base, or any solution to
overcome the above error?