pwd = Dir ('.').abspath;
current_directory = str (pwd);
libpath = current_directory.replace ('test/', 'source/');
env.Append (LIBPATH = [libpath])
pwd = Dir ('.').abspath;
current_directory = str (pwd);
libpath = current_directory.replace ('test/', 'source/');
env.Append (LIBPATH = [libpath])