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Boost on OS X using the brew boost keg

I was installing boost today using the *brew keg*, which shows it's for the latest version, 1.55.0, but I kept running into errors.
  1. --HEAD
  2. --with-mpi
In the case of #1, it kept puking every time it tried to grab boost from svn. In the case of #2, no matter what I did, including this option kept giving a warning about Python support soon to be deprecated. And yes, I tried the 
--without-python`
option. It just wasn't happening. I don't know if it's a problem with the keg, or a problem with this particular build of Boost. Finally, I was successfully able to get things to build using: 
brew install boost --c++11 --with-icu --without-python --without-single
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