HomeBrew

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

This will create homebrew in /usr/local/. After this installation, install

brew install pcre     # Regular Expressions library
brew install fftw     # Fast Fourier Transform
brew install openssl  # openSSL security cyber-communication library
brew install cmake    # Cross-platform make

Openssl is not nessary and has already been included in the MacOS EL Captain. However, when installing root, libssl.1.0.0.dylib (a higher version than system inbuilt) is required by root 6. Therefore I have to copy the usr/local/Cellar/openssl/lib/libssl.1.0.0.dylib to $ROOTSYS/lib

HepMC

After download hepMC, a pythia 8 outputing format writer.

/configure --prefix=/usr/local/hepmc --with-momentum=GEV --with-length=MM
make 
make install

anaconda 2

This install anaconda python. Please do anaconda 2, because rootpy so far only support python 2.

root

$ export INSTALL_DIR=/usr/local/root
$ mkdir $INSTALL_DIR
$ cd $INSTALL_DIR
$ cmake ~/Desktop/root -DCMAKE_INSTALL_PREFIX=$INSTALL_DIR -Droofit=ON -Dcocoa=ON -Dpython=ON
$ make -j 4
$ make install