Installing ruby 1.9.3-p385 w/ falcon patch using ruby-install on Mavericks

Instructions.md

Rubies older than 1.9.3-p429 will not compile with Clang and require GCC >= 4.2, install GCC 4.2:

$ brew update && brew tap homebrew/versions
$ brew install apple-gcc42

Install autoconf and automake:

$ brew install autoconf automake

Install ruby w/ falcon patch (with backport-gc):

$ ruby-install -p https://github.com/funny-falcon/ruby/compare/p385...p385_falcon_gc.diff ruby 1.9.3-p385 -- CC=gcc-4.2