To install the external packages one has to run the configure.sh
script in the main directory of the external packages. This release
cannot be installed "in-source" any longer. The packages are installed
in a separate installation directory which can be anywhere on the file
system. 

To start the installtion run 
  
> ./configure.sh

In the first menu one has to define the compiler which should be used for
installation. This compiler has obviously to be present on the system. 

In the second menu one has to decide if the packages should be installed in
debug, normal or optimization mode. If you choose the optimization mode one
has additionaly also to define the optimization flags in the appropriate
part of the fileĀ scripts/set_compiler.sh. If unsure don't use this option.

In the third menu one has to define if the geant4 data files should be
installed at all, and if they should be installed automatically or manualy.
If the data files should be installed it is normally save to choose the
option Internet which will download the files and does the installation 
automatically. Only if your system cannot download the files choose the
Directory option. In this case one has to put the files into the transport
directory so that they can be installed. One can download the files from
the following webpage.

http://geant4.cern.ch/support/download.shtml

In the next menu one has to define the installation directory.

After this steps the installation process starts which can take a long
time.
If there are errors one can start the script again. It checks which part was 
allready compilled and installed and will skip this parts.