Instalando ruby ​​2.0.0-p0 para rbenv

wget ftp://ftp.ruby-lang.org/pub/ruby/2.0/ruby-2.0.0-p0.tar.bz2
tar xjf ruby
-2.0.0-p0.tar.bz2
cd ruby
-2.0.0-p0
./configure --prefix=$HOME/.rbenv/versions/2.0.0-p0 --enable-shared
make

make install