error upon client disconnection.

Initial patch by Merlijn van Deen.

I've added a few unrelated docstring fixes in the patch while I was at
it, which makes the documentation for pickle a bit more consistent.

This silences the pre-processor warning '_POSIX_C_SOURCE redefined'.

where appropriate.

is present.  Original patch by Antoine Pitrou.

The new asyncio package now supports the new feature and comes with additional tests for SSL.

Some dbm header files declare the first argument as char * instead of a const char *.

limit EINTR occurrences.

Also fix an analogous bug (not a regression) in the lzma module.