Function make_emscripten_libffi

Platforms/emscripten/__main__.py:350–381

(context, working_dir)

@subdir("host_build_dir", clean_ok=True)
def make_emscripten_libffi(context, working_dir):
    validate_emsdk_version(context.emsdk_cache)
    prefix = context.build_paths["prefix_dir"]
    libffi_config = load_config_toml()["dependencies"]["libffi"]
    with open(EMSCRIPTEN_DIR / "make_libffi.sh", "rb") as f:
        libffi_config["make_libffi_shasum"] = hashlib.file_digest(f, "sha256").hexdigest()
    if not should_build_library(
        prefix, "libffi", libffi_config, context.quiet
    ):
        return

    if context.check_up_to_date:
        print("libffi out of date, expected to be up to date", file=sys.stderr)
        sys.exit(1)

    url = libffi_config["url"]
    version = libffi_config["version"]
    shasum = libffi_config["shasum"]
    libffi_dir = working_dir / f"libffi-{version}"
    shutil.rmtree(libffi_dir, ignore_errors=True)
    download_and_unpack(
        working_dir,
        url.format(version=version),
        shasum,
    )
    call(
        [EMSCRIPTEN_DIR / "make_libffi.sh"],
        env=updated_env({"PREFIX": prefix}, context.emsdk_cache),
        cwd=libffi_dir,
        quiet=context.quiet,
    )
    write_library_config(prefix, "libffi", libffi_config, context.quiet)


@subdir("host_build_dir", clean_ok=True)