Python packaging is hard...

MANIFEST.in

@@ -0,0 +1,2 @@
+include netfx_loader/*.sln netfx_loader/*.csproj netfx_loader/*.cs
+recursive-exclude clr_loader/ffi/dlls *.dll

setup.cfg

@@ -0,0 +1,2 @@
+[metadata]
+license_file = LICENSE

setup.py

@@ -1,13 +1,14 @@
 #!/usr/bin/env python
 
-from setuptools import setup, find_packages
-from distutils.cmd import Command
+from setuptools import setup, find_packages, Command, Extension
+from wheel.bdist_wheel import bdist_wheel
 
 
-class DotnetLib:
-    def __init__(self, path, **kwargs):
+class DotnetLib(Extension):
+    def __init__(self, name, path, **kwargs):
         self.path = path
         self.args = kwargs
+        super().__init__(name, sources=[])
 
 
 class BuildDotnet(Command):
@@ -22,8 +23,10 @@ class BuildDotnet(Command):
     def finalize_options(self):
         pass
 
+    def get_source_files(self):
+        return []
+
     def run(self):
-        # self.spawn(["./build_netfx_loader.sh"])
         for lib in self.distribution.ext_modules:
             opts = sum(
                 [
@@ -39,6 +42,14 @@ class BuildDotnet(Command):
             self.spawn(["dotnet", "build", lib.path] + opts)
 
 
+class bdist_wheel_patched(bdist_wheel):
+    def finalize_options(self):
+        # Monkey patch bdist_wheel to think the package is pure even though we
+        # include DLLs
+        super().finalize_options()
+        self.root_is_pure = True
+
+
 with open("README.md", "r") as f:
     long_description = f.read()
 
@@ -51,6 +62,7 @@ setup(
     long_description=long_description,
     long_description_content_type="text/markdown",
     license="MIT",
+    python_requires=">=3.3",
     install_requires=["cffi"],
     classifiers=[
         "Development Status :: 2 - Pre-Alpha",
@@ -63,11 +75,19 @@ setup(
     ],
     package_data={"clr_loader.ffi": ["dlls/x86/*.dll", "dlls/amd64/*.dll"]},
     packages=find_packages(),
-    cmdclass={"build_ext": BuildDotnet},
+    cmdclass={"build_ext": BuildDotnet, "bdist_wheel": bdist_wheel_patched},
     ext_modules={
-        DotnetLib("netfx_loader/", runtime="win-x86", output="clr_loader/ffi/dlls/x86"),
         DotnetLib(
-            "netfx_loader/", runtime="win-x64", output="clr_loader/ffi/dlls/amd64"
+            "netfx-loader-x86",
+            "netfx_loader/",
+            runtime="win-x86",
+            output="clr_loader/ffi/dlls/x86",
+        ),
+        DotnetLib(
+            "netfx-loader-amd64",
+            "netfx_loader/",
+            runtime="win-x64",
+            output="clr_loader/ffi/dlls/amd64",
         ),
     },
 )