Allow to build with the PyPI package "clang" instead of "libclang". 1. It seems to be maintained. 2. In the FreeBSD base system there is no pre-built libclang.so. If you need this library you have to install llvm from ports additionally. 2. On FreeBSD there is no pre-built wheel "libclang" with a packaged libclang.so.

import pymupdf
import os


def test_4614():
    script_dir = os.path.dirname(__file__)
    filename = os.path.join(script_dir, "resources", "test_4614.pdf")
    src = pymupdf.open(filename)
    doc = pymupdf.open()
    doc.insert_pdf(src)