Hack with the configure file for Node.js
https://github.com/nodejs/node/blob/master/configure is a confusing little file that is half shell script and half Python code. It operates in strange ways so it takes a while to grok it.
configure also has funky interactions with Travis CI so this repo will let us understand how to modify configure to support both Python 2 and Python 3.
See: nodejs/node#25789
