Installing PI_1_2_1-lite is as easy as installing PI_1_2_1. The full documentation on how to do this is available on this SPI web page.
On the machine where you want to install the software download the installation script, then make it executable and run the following commands:
chmod +x ./lcg-installation-manager.py
./lcg-installation-manager.py --project=PI_1_2_1-lite --arch=rh73_gcc32 --prefix=${HOME}/sw/lcg download
(feel free to replace /$HOME/sw/lcg with the path where you want to install it).
After download and installation, you have to add the following to your PATH variable:
setenv PATH "${HOME}/sw/lcg/app/releases/PI/PI_1_2_1-lite/rh73_gcc32/bin:${PATH}"
or, if you use sh/bash:
export PATH=${HOME}/sw/lcg/app/releases/PI/PI_1_2_1-lite/rh73_gcc32/bin:${PATH}
This will make sure that the "aida-config" command is found when you
are using it in your makefiles.
That's it !! :-)