CESM: Building CESM 1.2 on Mac OSX

This post documents the method I used for building and running the CESM 1.2 on a Mac running OSX 10.9.5 (Mavericks). I also included some debugging notes for my own reference. This took several weeks of tinkering to streamline the process, so I hope this helps other researchers looking for a convenient way to run single column model (SCM) experiments.