Vim-Ruby insists on using system ruby

[Sonny Chee]

Hey Tim,

I installed vim-gnome on Ubuntu 14.10 and also pathogen and vim-rbenv plugin. I checked on the ruby version with the following and it appears my rbenv installs are not being referenced...

nnoremap z RubyPath()

function! s:RubyPath()
ruby << EOF
puts $:
EOF
endfunction

[Tim Pope]

The vim ruby interface is is linked at compile time and can't be changed.