ruby oci8

I'd start fresh with rvm:

    sudo rvm implode
    \curl -L https://get.rvm.io | bash -s stable

Make sure homebrew is installed:

    ruby -e "$(curl -fsSkL raw.github.com/mxcl/homebrew/go)"

Install libyaml, universally

    brew install --universal libyaml

From [this thread](http://stackoverflow.com/questions/11954193/using-multiple-versions-of-libyaml-with-rvm "http://stackoverflow.com/questions/11954193/using-multiple-versions-of-libyaml-with-rvm"), I saw you can symlink the homebrew libyaml directory into rvm's to make it recognize that before installing a ruby version. According to the comments, though (from mpapis himself!) - if detection of libyaml changes, it may overwrite the installation. "rvm pkg install" will also go to that directory. For right now, however, it was the only way I could get it working without the "libyaml not installed" and psych errors.

    ln -s /usr/local/Cellar/libyaml/0.1.4 ~/.rvm/usr

Now install ruby with a crazy amount of flags:

    CFLAGS='-m32' CXXFLAGS='-m32' LDFLAGS='-m32' rvm install 1.9.3 -n i386 --with-arch=i386 --with-libyaml

Make sure you're not getting the 'psych' error:

    gem list

Finally, hold your breath and cross your fingers:

    gem install ruby-oci8

Hopefully this helps someone!