Thanks, this time it worked. I had to remove the example.i source file in setup.py since I don’t have swig installed, but apart from that, compiling “ex ample.c” or “ex ample/ex ample.c” worked.

Next steps:
- Write something similar to your example (can’t just copy it since Python is not under GPL) as a unit test for distutils; I’ll do it if nobody does it shortly.
- Confirm that the bug is present on windows and hunt for it (paths translation? argument quoting?)