…0.5.2

Jason Madden (58):
      Back to development: 20.5.1
      Avoid closing the same libuv watcher object twice.
      Add faulthandler.
      Fix compilation with Cython 3.
      Go back to pinning Cython < 3.
      Add link to Cython issue cython/cython#3578
      Working on an improved loop exit protocol.
      Clean hub resources in a compatible way.
      Calling debug() on a destroyed libuv loop would raise TypeError
      More safely handle getting a callback from libuv once we're destroyed.
      More safely handle getting a callback from libuv once we're destroyed.
      Properly clean up native resources in gevent.signal_handler() when cancel is called.
      Update to PyPy 7.3.1 on Travis.
      Fixes for PyPy 7.3.1
      Make waiters on Events that arrive while the event is ready and notifying greenlets that had to block run after they do.
      Testrunner: Ignore warnings from dns.zone
      Fix calling gevent.wait() twice on a set Event.
      fixup
      Missed trailing colon.
      Add postrelease hook to stop zest.releaser from modifying CHANGES.rst in its last step.
      Tweak documentation for baseserver.max_accept. [skip ci]
      Rename C accelerator modules to avoid clashes.
      Tweak a URL in the docs. [skip ci]
      Add failing test for #1437
      Progress on cross-thread locks.
      Missing import.
      Adjust when and how Semaphore captures the hub.
      Cleanup to pass leak tests.
      More fixes for leakchecks.
      test__threading_native_before_monkey was depending on a side-effect.
      Fix benchmark, and make AsyncResult use the provided API.
      Update to Cython 3.0a5. Fixes #1599
      Make zope.interface/event and setuptools required dependencies.
      Update to libuv 1.38
      Try configuring with bash.
      win/udp.c is incompatible with Visual Studio 9
      Debugging output for libuv/libuv#2862
      Also automake version.
      Update from Ubuntu 16.04 to 18.04
      Try one line?
      m4/ax_pthread.m4 was being ignored by m4/.gitignore.
      Revert update to bionic.
      Bump c-ares to 1.16.1. Fixes #1624.
      whitespace
      manpage patch
      Restore config.guess/config.sub to c-ares.
      Use latest xcode
      Add libresolv to the libraries needed to link c-ares on macOS.
      distutils cflags may be None, e.g., on Win
      Tweak links in readme. [skip ci]
      Preparing release 20.5.1
      Back to development: 20.5.2
      Try to only upload gevent wheels on appveyor.
      Catch greenlet.error when destroying a hub from another thread.
      Attempt better warnings handling.
      default action should be first.
      Don't get a warning about ResourceWarning on Py2.
      Preparing release 20.5.2

It was reported that the addition of that file without adding an
exception to m4/.gitignore breaks the tarball autotools build because
the file isn't distributed.

Fixes: libuv#2862

It was reported that the addition of that file without adding an
exception to m4/.gitignore breaks the tarball autotools build because
the file isn't distributed.

Fixes: libuv#2862
PR-URL: libuv#2885
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>