in a ncursesw directory.

- Issue #21274: Define PATH_MAX for GNU/Hurd in Python/pythonrun.c.

- Issue #21276: posixmodule: Don't define USE_XATTRS on KFreeBSD and the Hurd.

- Issue #21275: Fix a socket test on KFreeBSD.

  include directories if they aren't already being searched. This avoids
  an explicit runtime library dependency.

Patch by Sam Lucidi.

Initial patch by Caelyn McAulay.

Patch by Christian Hudon.

Patch by Caelyn McAulay.

Neither Caelyn nor I could find any cases in 2.7 or 3.4/5 where an
operation on a closed stream raised IOError; generally the C
implementations have a macro to check for the stream being closed, and
these macros all raised ValueError.  If we find any, a new bug should
be opened.

Patch by Rafael Mejia.

Closes issue 21239. unittest.mock.patch.stopall() did not work deterministically when the same name was patched multiple times.

Capture threads in the setUpModule and cleanup threads in the tearDownModule.

Passing name keyword argument to mock.create_autospec now works.