*Preliminary [#aecb0e7b] In this example, it is assumed that the source code is located in the home directory ($HOME). The structure of the source code is as follows: arch/ build/ example/ gncpp/ README src/ util/ -arch/ contains include files for Makefile -build/ is the directory used to build STATE - example/ contains the example input and output files - gncpp/ contains the pseudopotentials - util/ contains utility programs.