Install autoconf 2.71 in the docker image. Upstream libffi requires autoconf 2.71, so we should try to use it too.
import os
import re
import shutil
import tempfile
from pathlib import Path
from typing import Optional
from urllib.parse import urlparse

import requests
import typer

from .. import common
from ..out_of_tree import build
from ..out_of_tree.pypi import build_dependencies_for_wheel, fetch_pypi_package
from ..out_of_tree.utils import initialize_pyodide_root


def pypi(
    package: str,
    exports: str = typer.Option(
        "requested",
        help="Which symbols should be exported when linking .so files?",
    ),
    ctx: typer.Context = typer.Context,
) -> Path:
    """Fetch a wheel from pypi, or build from source if none available."""
    initialize_pyodide_root()
    common.check_emscripten_version()
    backend_flags = ctx.args
    curdir = Path.cwd()
    (curdir / "dist").mkdir(exist_ok=True)

    with tempfile.TemporaryDirectory() as tmpdir:
        temppath = Path(tmpdir)

        # get package from pypi
        package_path = fetch_pypi_package(package, temppath)
        if not package_path.is_dir():
            # a pure-python wheel has been downloaded - just copy to dist folder
            dest_file = curdir / "dist" / package_path.name
            shutil.copyfile(str(package_path), curdir / "dist" / package_path.name)
            print(f"Successfully fetched: {package_path.name}")
            return dest_file

        # sdist - needs building
        os.chdir(tmpdir)
        built_wheel = build.run(exports, backend_flags, outdir=curdir / "dist")
        os.chdir(curdir)
        return built_wheel


def url(
    package_url: str,
    exports: str = typer.Option(
        "requested",
        help="Which symbols should be exported when linking .so files?",
    ),
    ctx: typer.Context = typer.Context,
) -> Path:
    """Fetch a wheel or build sdist from url."""
    initialize_pyodide_root()
    common.check_emscripten_version()
    backend_flags = ctx.args
    curdir = Path.cwd()
    (curdir / "dist").mkdir(exist_ok=True)
    with requests.get(package_url, stream=True) as response:
        parsed_url = urlparse(response.url)
        filename = os.path.basename(parsed_url.path)
        name_base, ext = os.path.splitext(filename)
        if ext == ".gz" and name_base.rfind(".") != -1:
            ext = name_base[name_base.rfind(".") :] + ext
        if ext.lower() == ".whl":
            # just copy wheel into dist and return
            out_path = Path(f"dist/{filename}").resolve()
            with open(out_path, "b") as f:
                for chunk in response.iter_content(chunk_size=1048576):
                    f.write(chunk)
            return out_path
        else:
            tf = tempfile.NamedTemporaryFile(suffix=ext, delete=False)
            for chunk in response.iter_content(chunk_size=1048576):
                tf.write(chunk)
            tf.close()
            with tempfile.TemporaryDirectory() as tmpdir:
                temppath = Path(tmpdir)
                shutil.unpack_archive(tf.name, tmpdir)
                folder_list = list(temppath.iterdir())
                if len(folder_list) == 1 and folder_list[0].is_dir():
                    # unzipped into subfolder
                    os.chdir(folder_list[0])
                else:
                    # unzipped here
                    os.chdir(temppath)
                wheel_path = build.run(exports, backend_flags, outdir=curdir / "dist")
            os.unlink(tf.name)
            return wheel_path


def source(
    source_location: str,
    exports: str = typer.Option(
        "requested",
        help="Which symbols should be exported when linking .so files?",
    ),
    ctx: typer.Context = typer.Context,
) -> Path:
    """Use pypa/build to build a Python package from source"""
    initialize_pyodide_root()
    orig_dir = Path.cwd()
    if source_location != ".":
        # build in this folder
        os.chdir(source_location)
    common.check_emscripten_version()
    backend_flags = ctx.args
    built_wheel = build.run(exports, backend_flags, outdir=orig_dir / "dist")
    os.chdir(orig_dir)
    return built_wheel


# simple 'pyodide build' command
def main(
    source_location: "Optional[str]" = typer.Argument(
        "",
        help="Build source, can be source folder, pypi version specification, or url to a source dist archive or wheel file. If this is blank, it will build the current directory.",
    ),
    exports: str = typer.Option(
        "requested",
        help="Which symbols should be exported when linking .so files?",
    ),
    build_dependencies: bool = typer.Option(
        False, help="Fetch non-pyodide dependencies from pypi and build them too."
    ),
    skip_dependency: list[str] = typer.Option(
        [],
        help="Skip building or resolving a single dependency. Use multiple times or provide a comma separated list to skip multiple dependencies.",
    ),
    ctx: typer.Context = typer.Context,
) -> None:
    """Use pypa/build to build a Python package from source, pypi or url."""
    extras: list[str] = []
    if source_location is not None:
        extras = re.findall(r"\[(\w+)\]", source_location)
        if len(extras) != 0:
            source_location = source_location[0 : source_location.find("[")]

    if not source_location:
        # build the current folder
        wheel = source(".", exports, ctx)
    elif source_location.find("://") != -1:
        wheel = url(source_location, exports, ctx)
    elif Path(source_location).is_dir():
        # a folder, build it
        wheel = source(source_location, exports, ctx)
    elif source_location.find("/") == -1:
        # try fetch or build from pypi
        wheel = pypi(source_location, exports, ctx)
    else:
        raise RuntimeError(f"Couldn't determine source type for {source_location}")
    # now build deps for wheel
    if build_dependencies:
        try:
            build_dependencies_for_wheel(
                wheel, extras, skip_dependency, exports, ctx.args
            )
        except BaseException as e:
            import traceback

            print("Failed building dependencies for wheel:", traceback.format_exc())
            wheel.unlink()
            raise e


main.typer_kwargs = {  # type: ignore[attr-defined]
    "context_settings": {
        "ignore_unknown_options": True,
        "allow_extra_args": True,
    },
}

import os
import re
import shutil
import tempfile
from pathlib import Path
from typing import Optional
from urllib.parse import urlparse

import requests
import typer

from .. import common
from ..out_of_tree import build
from ..out_of_tree.pypi import build_dependencies_for_wheel, fetch_pypi_package
from ..out_of_tree.utils import initialize_pyodide_root


def pypi(
    package: str,
    exports: str = typer.Option(
        "requested",
        help="Which symbols should be exported when linking .so files?",
    ),
    ctx: typer.Context = typer.Context,
) -> Path:
    """Fetch a wheel from pypi, or build from source if none available."""
    initialize_pyodide_root()
    common.check_emscripten_version()
    backend_flags = ctx.args
    curdir = Path.cwd()
    (curdir / "dist").mkdir(exist_ok=True)

    with tempfile.TemporaryDirectory() as tmpdir:
        temppath = Path(tmpdir)

        # get package from pypi
        package_path = fetch_pypi_package(package, temppath)
        if not package_path.is_dir():
            # a pure-python wheel has been downloaded - just copy to dist folder
            dest_file = curdir / "dist" / package_path.name
            shutil.copyfile(str(package_path), curdir / "dist" / package_path.name)
            print(f"Successfully fetched: {package_path.name}")
            return dest_file

        # sdist - needs building
        os.chdir(tmpdir)
        built_wheel = build.run(exports, backend_flags, outdir=curdir / "dist")
        os.chdir(curdir)
        return built_wheel


def url(
    package_url: str,
    exports: str = typer.Option(
        "requested",
        help="Which symbols should be exported when linking .so files?",
    ),
    ctx: typer.Context = typer.Context,
) -> Path:
    """Fetch a wheel or build sdist from url."""
    initialize_pyodide_root()
    common.check_emscripten_version()
    backend_flags = ctx.args
    curdir = Path.cwd()
    (curdir / "dist").mkdir(exist_ok=True)
    with requests.get(package_url, stream=True) as response:
        parsed_url = urlparse(response.url)
        filename = os.path.basename(parsed_url.path)
        name_base, ext = os.path.splitext(filename)
        if ext == ".gz" and name_base.rfind(".") != -1:
            ext = name_base[name_base.rfind(".") :] + ext
        if ext.lower() == ".whl":
            # just copy wheel into dist and return
            out_path = Path(f"dist/{filename}").resolve()
            with open(out_path, "b") as f:
                for chunk in response.iter_content(chunk_size=1048576):
                    f.write(chunk)
            return out_path
        else:
            tf = tempfile.NamedTemporaryFile(suffix=ext, delete=False)
            for chunk in response.iter_content(chunk_size=1048576):
                tf.write(chunk)
            tf.close()
            with tempfile.TemporaryDirectory() as tmpdir:
                temppath = Path(tmpdir)
                shutil.unpack_archive(tf.name, tmpdir)
                folder_list = list(temppath.iterdir())
                if len(folder_list) == 1 and folder_list[0].is_dir():
                    # unzipped into subfolder
                    os.chdir(folder_list[0])
                else:
                    # unzipped here
                    os.chdir(temppath)
                wheel_path = build.run(exports, backend_flags, outdir=curdir / "dist")
            os.unlink(tf.name)
            return wheel_path


def source(
    source_location: str,
    exports: str = typer.Option(
        "requested",
        help="Which symbols should be exported when linking .so files?",
    ),
    ctx: typer.Context = typer.Context,
) -> Path:
    """Use pypa/build to build a Python package from source"""
    initialize_pyodide_root()
    orig_dir = Path.cwd()
    if source_location != ".":
        # build in this folder
        os.chdir(source_location)
    common.check_emscripten_version()
    backend_flags = ctx.args
    built_wheel = build.run(exports, backend_flags, outdir=orig_dir / "dist")
    os.chdir(orig_dir)
    return built_wheel


# simple 'pyodide build' command
def main(
    source_location: "Optional[str]" = typer.Argument(
        "",
        help="Build source, can be source folder, pypi version specification, or url to a source dist archive or wheel file. If this is blank, it will build the current directory.",
    ),
    exports: str = typer.Option(
        "requested",
        help="Which symbols should be exported when linking .so files?",
    ),
    build_dependencies: bool = typer.Option(
        False, help="Fetch non-pyodide dependencies from pypi and build them too."
    ),
    skip_dependency: list[str] = typer.Option(
        [],
        help="Skip building or resolving a single dependency. Use multiple times or provide a comma separated list to skip multiple dependencies.",
    ),
    ctx: typer.Context = typer.Context,
) -> None:
    """Use pypa/build to build a Python package from source, pypi or url."""
    extras: list[str] = []
    if source_location is not None:
        extras = re.findall(r"\[(\w+)\]", source_location)
        if len(extras) != 0:
            source_location = source_location[0 : source_location.find("[")]

    if not source_location:
        # build the current folder
        wheel = source(".", exports, ctx)
    elif source_location.find("://") != -1:
        wheel = url(source_location, exports, ctx)
    elif Path(source_location).is_dir():
        # a folder, build it
        wheel = source(source_location, exports, ctx)
    elif source_location.find("/") == -1:
        # try fetch or build from pypi
        wheel = pypi(source_location, exports, ctx)
    else:
        raise RuntimeError(f"Couldn't determine source type for {source_location}")
    # now build deps for wheel
    if build_dependencies:
        try:
            build_dependencies_for_wheel(
                wheel, extras, skip_dependency, exports, ctx.args
            )
        except BaseException as e:
            import traceback

            print("Failed building dependencies for wheel:", traceback.format_exc())
            wheel.unlink()
            raise e


main.typer_kwargs = {  # type: ignore[attr-defined]
    "context_settings": {
        "ignore_unknown_options": True,
        "allow_extra_args": True,
    },
}
