',     source=[         'data_replicator_external_state_impl.cpp',     ],     LIBDEPS=[         '$BUILD_DIR/mongo/base',         'oplog_application',         'oplog_buffer_blocking_queue',         'oplog_buffer_collection',         'oplog_buffer_proxy',         'optime',         'repl_coordinator_interface',         'storage_interface',     ],     LIBDEPS_PRIVATE=[         'repl_server_parameters',     ], )  env.Library(     target='data_replicator_external_state_initial_sync',     source=[         'data_replicator_external_state_initial_sync