Patch by Matt Joiner.

Without this fix, both 2.7 and 3.x would always point to the "current"
docs...which means that before this fix python 3.2 'help' pointed to the 2.7
tutorial.

Patch by Sandro Tosi.

Patch by Roger Serwy.

in sys_update_path().

to a known bug in pthread implementation on FreeBSD < 7).

fix #10340: properly handle EINVAL on OSX and also avoid to call handle_connect() in case of a disconnetected socket which is not meant to connect.

Patch by Guilherme Polo.

Based on patch from Hervé Coatanhay.

Patch by Eric Snow.

allocating path buffers on the heap instead of the stack.