Ruby: Install Ruby 1.9.3-p327 via rvm with cumulative performance patch

install.sh

#!/usr/bin/env bash
#
# This script will install Ruby 1.9.3-p327 via rvm with additional performance
# patches for faster Rails boot. Please refer to
#
#   https://gist.github.com/1688857
#
# for detailed information. Run directly with:
#
#   curl https://raw.github.com/gist/3786925/install.sh | bash

# install build dependencies on Ubuntu
if [ -x "/usr/bin/lsb_release" ]; then
    distributor_id=$(/usr/bin/lsb_release -is)
    if [ "${distributor_id}" == "Ubuntu" ] || [ "${distributor_id}" == "LinuxMint" ]; then
        apt-get update && apt-get install build-essential libyaml-dev

        # remove aliases on Ubuntu
        unalias cp mv >/dev/null 2>&1
    fi
fi

export LANG=en_US.utf8
export CFLAGS="-march=native -O3 -Wall -pipe -fomit-frame-pointer -fno-strict-aliasing"
export CXXFLAGS="${CFLAGS}"

rvm get head && rvm reload && rvm reinstall 1.9.3-perf --patch falcon --force-autoconf -j 3