code: def clean(bld):
  	'''removes the build files'''
  	try:
  		proj=Environment.Environment(Options.lockfile)
  	except IOError:
  		raise Utils.WafError('Nothing to clean (project not configured)')
  	bld.load_dirs(proj[SRCDIR],proj[BLDDIR])
  	bld.load_envs()
  	bld.is_install=0
  	bld.add_subdirs([os.path.split(Utils.g_module.root_path)[0]])
  	try:
  		bld.clean()
  	finally:
  		bld.save(f clean(bld):
  	'''removes the build files'''
  	try:
  		proj=Environment.Environment(Options.lockfile)
  	except IOError:
  		raise Utils.WafError('Nothing to clean (project not configured)')
  	bld.load_dirs(proj[SRCDIR],proj[BLDDIR])
  	bld.load_envs()
  	bld.is_install=0
  	bld.add_subdirs([os.path.split(Utils.g_module.root_path)[0]])
  	try:
  		bld.clean()
  	finally:
  		bld.save()
docs: removes the build files