Function fixup_build_ext

Tools/peg_generator/pegen/build.py:33–69

Function needed to make build_ext tests pass. When Python was built with --enable-shared on Unix, -L. is not enough to find libpython .so, because regrtest runs in a tempdir, not in the source directory where the .so lives. When Python was built with in debug mode on Windows,

(cmd: Incomplete)

def fixup_build_ext(cmd: Incomplete) -> None:
    """Function needed to make build_ext tests pass.

    When Python was built with --enable-shared on Unix, -L. is not enough to
    find libpython<blah>.so, because regrtest runs in a tempdir, not in the
    source directory where the .so lives.

    When Python was built with in debug mode on Windows, build_ext commands
    need their debug attribute set, and it is not done automatically for
    some reason.

    This function handles both of these things.  Example use:

        cmd = build_ext(dist)
        support.fixup_build_ext(cmd)
        cmd.ensure_finalized()

    Unlike most other Unix platforms, Mac OS X embeds absolute paths
    to shared libraries into executables, so the fixup is not needed there.

    Taken from distutils (was part of the CPython stdlib until Python 3.11)
    """
    if os.name == "nt":
        cmd.debug = sys.executable.endswith("_d.exe")
    elif sysconfig.get_config_var("Py_ENABLE_SHARED"):
        # To further add to the shared builds fun on Unix, we can't just add
        # library_dirs to the Extension() instance because that doesn't get
        # plumbed through to the final compiler command.
        runshared = sysconfig.get_config_var("RUNSHARED")
        if runshared is None:
            cmd.library_dirs = ["."]
        else:
            if sys.platform == "darwin":
                cmd.library_dirs = []
            else:
                name, equals, value = runshared.partition("=")
                cmd.library_dirs = [d for d in value.split(os.pathsep) if d]


def compile_c_extension(