install rbenv (ruby 1.9.3-p385) on a basebox

rbenv.sh

#!/bin/sh

# Install rbenv
git clone git://github.com/sstephenson/rbenv.git ~/.rbenv
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.profile
echo 'eval "$(rbenv init -)"' >> ~/.profile
source ~/.profile

# Install ruby-build
git clone git://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build

# Install ruby
RUBY_CONFIGURE_OPTS=--with-openssl-dir="/usr/local/openssl" 
CONFIGURE_OPTS=--with-readline-dir="/usr/local/readline"
CFLAGS="-O3 -fomit-frame-pointer -pipe -funroll-loops"
VERSION=1.9.3-p385
curl https://raw.github.com/gist/4760936/1-$VERSION-patched.sh > /tmp/$VERSION-perf
rbenv install /tmp/$VERSION-perf

# Clean up
rm -rf /tmp/$VERSION-perf