Cannot install pg gem in Mavericks with Postgres.app

Question

I am trying to install the pg gem for use with Postgres.app on my local machine. I am running Mavericks.

Postgres.app is installed and running fine, but I cannot get

Answer 1

I was able to install pg with this command

    gem install pg -- --with-pg-config=/Library/PostgreSQL/9.3/bin/pg_config

I found my path by running

    sudo find / -name "pg_config"

and I Successfully installed pg-0.17.1