+- Patch #975056: Restartable signals were not correctly disabled on
+ BSD systems. Consistently use PyOS_setsig() instead of signal().
- The internal portable implementation of thread-local storage (TLS), used
by the ``PyGILState_Ensure()``/``PyGILState_Release()`` API, was not
thread-correct. This could lead to a variety of problems, up to and