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import os
import setuptools.command.build_ext
from setuptools import Distribution, find_packages, setup
from setuptools.extension import Extension, Library
# despite its name, setuptools.command.build_ext.link_shared_object won't
# link a shared object on Linux, but a static library and patches distutils
# for this ... We're patching this back now.
def always_link_shared_object(
self,
objects,
output_libname,
output_dir=None,
libraries=None,
library_dirs=None,
runtime_library_dirs=None,
export_symbols=None,
debug=0,
extra_preargs=None,
extra_postargs=None,
build_temp=None,
target_lang=None,
):
self.link(
self.SHARED_LIBRARY,
objects,
output_libname,
output_dir,
libraries,
library_dirs,
runtime_library_dirs,
export_symbols,
debug,
extra_preargs,
extra_postargs,
build_temp,
target_lang,
)
setuptools.command.build_ext.libtype = "shared"
setuptools.command.build_ext.link_shared_object = always_link_shared_object
libtype = setuptools.command.build_ext.libtype
build_ext_cmd = Distribution().get_command_obj("build_ext")
build_ext_cmd.initialize_options()
build_ext_cmd.setup_shlib_compiler()
def libname(name):
"""gets 'name' and returns something like libname.cpython-37m-darwin.so"""
filename = build_ext_cmd.get_ext_filename(name)
fn, ext = os.path.splitext(filename)
return build_ext_cmd.shlib_compiler.library_filename(fn, libtype)
pkg_name = "nonpy_rpath"
crypt_name = "_cryptexample"
crypt_soname = libname(crypt_name)
build_cmd = Distribution().get_command_obj("build")
build_cmd.finalize_options()
build_platlib = build_cmd.build_platlib
def link_args(soname=None):
args = []
if soname:
args += ["-Wl,-soname," + soname]
loader_path = "$ORIGIN"
args += ["-Wl,-rpath," + loader_path]
return args
nonpy_rpath_module = Extension(
pkg_name + "._nonpy_rpath",
language="c++",
sources=["nonpy_rpath.cpp"],
extra_link_args=link_args(),
extra_objects=[build_platlib + "/nonpy_rpath/" + crypt_soname],
)
crypt_example = Library(
pkg_name + "." + crypt_name,
language="c++",
extra_compile_args=["-lcrypt"],
extra_link_args=link_args(crypt_soname) + ["-lcrypt"],
sources=["extensions/testcrypt.cpp"],
)
setup(
name="nonpy_rpath",
version="0.1.0",
packages=find_packages(),
description="Test package for nonpy_rpath",
ext_modules=[crypt_example, nonpy_rpath_module],
)
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