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  1. Return to the work dir, create a Geant4 subdir and go into it.
    No Format
    cd $sim_work
    mkdir geant4
    cd geant4
    
  2. Download the Geant4 tarball.
    No Format
    wget http://geant4.cern.ch/geant4/source/source/geant4.7.0.p01.tar.gz
    
  3. Unzip it.
    No Format
    tar -zxvf geant4.7.0.p01.tar.gz
    
  4. Set the following variables in setup.sh. (You should not need to run Configure.)
    No Format
    export G4INSTALL=${sim_wrk}/geant4/geant4.7.0.p01
    export G4SYSTEM=Linux-g++
    
  5. Go into the Geant4 base dir.
    No Format
    cd geant4.7.0.p01
    
  6. Build the libraries, which will be placed at $G4INSTALL/lib/WIN32-g++. (This could take up to a few hours depending on your machine.)
    No Format
    cd source
    make
    make includes
    
  7. Build the physics list libraries. These will go into $G4INSTALL/lib/plists/WIN32-g++.
    No Format
    cd ../physics_lists/hadronic
    make
    
    Install the headers into $G4INSTALL/include.
    No Format
    
    make includes
    

Hopefully, Geant4 has been installed successfully, and you don't have too many more gray hairs.

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