setup.py

from sys import exit, argv
from distutils.core import setup, Extension
from os.path import exists, realpath, dirname, join as path_join
from sys import argv as sys_argv
from sysconfig import get_platform

def main():

    mod_name = 'G722'
    mod_name_dbg = mod_name + '_debug'

    mod_dir = dirname(realpath(sys_argv[0]))
    src_dir = './' if exists('g722_decode.c') else '../'
    mod_fname = mod_name + '_mod.c'
    mod_dir = '' if exists(mod_fname) else 'python/'

    def np_include():
        import numpy as np
        return f'-I{np.get_include()}'

    is_win = get_platform().startswith('win')
    is_mac = get_platform().startswith('macosx-')

    compile_args = [f'-I{src_dir}', np_include()]
    if not is_win:
        compile_args.append('-flto')
    link_args = ['-flto',] if not is_win else []
    if not is_mac and not is_win:
        smap_fname = f'{mod_dir}symbols.map'
        link_args.append(f'-Wl,--version-script={smap_fname}')
    debug_cflags = ['-g3', '-O0', '-DDEBUG_MOD']
    debug_link_args = ['-g3', '-O0']
    mod_common_args = {
        'sources': [mod_dir + mod_fname, src_dir + 'g722_decode.c', src_dir + 'g722_encode.c'],
        'extra_compile_args': compile_args,
        'extra_link_args': link_args
    }
    mod_debug_args = mod_common_args.copy()
    mod_debug_args['extra_compile_args'] = mod_debug_args['extra_compile_args'] + debug_cflags
    mod_debug_args['extra_link_args'] = mod_debug_args['extra_link_args'] + debug_link_args

    module1 = Extension(mod_name, **mod_common_args)
    module2 = Extension(mod_name_dbg, **mod_debug_args)

    requirements = [x.strip() for x in open(mod_dir + "requirements.txt", "r").readlines()]
    with open(src_dir + "README.md", "r") as fh:
        long_description = fh.read()

    kwargs = {
        'name':mod_name,
        'version':'1.2.0',
        'description':'This is a package for G.722 module',
        'long_description': long_description,
        'long_description_content_type': "text/markdown",
        'author':'Maksym Sobolyev',
        'author_email':'sobomax@sippysoft.com',
        'url':'https://github.com/sippy/libg722',
        'ext_modules': [module1, module2],
        'python_requires': '>=3.10',
        'install_requires': requirements,
        'classifiers': [
                'License :: Public Domain',
                'Operating System :: OS Independent',
                'Programming Language :: C',
                'Programming Language :: Python'
        ]
    }

    setup (**kwargs)

if __name__ == '__main__': main()