Installation structure :
========================
  bin/             contains the BIP compiler executable
  bip-parts/       contains BIP libraries
  externals/       contains the libraries needed for BIP
  include/         contains BIP header files for the engines
  lib/             contains the BIP engine libraries
  util/            contains the Makefile for building the application
  examples/        contains the prodcons example

Instaling textual bip command :
===============================
Define the BIP2_HOME environment variable to the root directory, add
 $BIP2_HOME/bin to you path.

