-parser.add_argument("--phases", choices=["update", "configure", "compile"], nargs='*', metavar='PHASE',
- dest="phases", default=["update", "configure", "compile"],
- help="For each module, run the given phases in the given order. Possible phases are: update, configure, compile")
+parser.add_argument("--no-update",
+ action="store_false", dest="update",
+ help="Do not update modules before compilation")