How can I set the compiled location with setuptools?

[wangm23456]

How can I set the compiled location with setuptools?
Now it is always generated in the root directory.

My build.py

from glob import glob
from typing import Any, Dict
from setuptools import setup
from pybind11.setup_helpers import Pybind11Extension, build_ext, intree_extensions

ext_modules = intree_extensions(["src/beam_search/find_scs.cpp", "src/beam_search/check_scs.cpp"])
# ext_modules = [
#     Pybind11Extension(
#         "beam_search",
#         sorted(glob("src/beam_search/*.cpp")),
#         libraries = "src/beam_search/"
#     ),
# ]

def build(setup_kwargs: Dict[str, Any]) -> None:
    setup_kwargs.update(
        {
            "cmdclass": {"build_ext": build_ext},
            "ext_modules": ext_modules,
        }
)

My setup.py generated by poetry:

# -*- coding: utf-8 -*-
from setuptools import setup

packages = \
['src', 'src.utils']

package_data = \
{'': ['*'], 'src': ['beam_search/*']}

setup_kwargs = {
    'description': '',
    'long_description': None,
    'maintainer': None,
    'maintainer_email': None,
    'url': None,
    'packages': packages,
    'package_data': package_data,
    'install_requires': install_requires,
    'python_requires': '>=3.8,<4.0',
}
from build import *
build(setup_kwargs)

setup(**setup_kwargs)