GitLab

* Use macro for __shfl_* functions

* Update test_matmul.py
Co-authored-by: jytang <striges@users.noreply.github.com>
Co-authored-by: Matthias Fey <matthias.fey@tu-dortmund.de>

Co-authored-by: Alessandro Pacchioni <apacchioni@ambarella.com>

* Add `WITH_PYTHON` to conditionally link to Python.

* Only include `Python.h` when WITH_PYTHON is set.

* Avoid including extensions.h as it includes Python.h.

* Better way to include `getpid()`.

* Define `WITH_PYTHON` when building with setup.py.

* Only include Pyinit when building with Python.

* Only include Pyinit when building with Python.