fixup5

setup.py

@@ -5,6 +5,24 @@
 from distutils.command.build_ext import build_ext as _build_ext
 from wheel.bdist_wheel import bdist_wheel as _bdist_wheel
 
+
+class build_ext(_build_ext):
+    """https://github.com/joerick/python-ctypes-package-sample/blob/7db688cd6ee32ae95bce0f75fb7d806926e20252/setup.py#L11"""
+    def build_extension(self, ext):
+        self._ctypes = isinstance(ext, CTypesExtension)
+        return super().build_extension(ext)
+
+    def get_export_symbols(self, ext):
+        if self._ctypes:
+            return ext.export_symbols
+        return super().get_export_symbols(ext)
+
+    def get_ext_filename(self, ext_name):
+        if self._ctypes:
+            return ext_name + ".so"
+        return super().get_ext_filename(ext_name)
+
+
 class bdist_wheel_abi_none(_bdist_wheel):
     """https://github.com/joerick/python-ctypes-package-sample/blob/7db688cd6ee32ae95bce0f75fb7d806926e20252/setup.py#L29"""
     def finalize_options(self):
@@ -15,6 +33,7 @@ def get_tag(self):
         python, abi, plat = _bdist_wheel.get_tag(self)
         return "py3", "none", plat
 
+
 setup(
     cmdclass={"build_ext": build_ext, "bdist_wheel": bdist_wheel_abi_none},
     cffi_modules=[