Signed-off-by: A. Jesse Jiryu Davis <jesse@mongodb.com>

This will only work on certain ubuntu versions

Fixes error extracting symlinks with Sun "tar" on Solaris: "typeflag 'x'
not recognized".

Signed-off-by: A. Jesse Jiryu Davis <jesse@mongodb.com>

Necessary for HP-UX and other legacy platforms.

Catch mistakes like CDRIVER-2071.

Call getpeername and getsockopt with the right parameters on each
platform where we use the Autotools build system. Set reasonable
defaults in CMake builds.

Ensure man pages are distributed and that sphinx cache files .buildinfo and
.doctrees are cleaned.

Signed-off-by: A. Jesse Jiryu Davis <jesse@mongodb.com>

mongoc_cursor_destroy() always attempts to destroy these documents, which would previously crash if they were left uninitialized when an error was reported by _mongoc_cursor_new_with_opts().