Correction for the fix for Bug 3508 - Persistent storage support breaks Linux compatibility.
A 2nd `make install' will fail attempting to create symlink libnvmemmory.so already created by 1st install.
Install should pre-emptively delete it.
# For testing http://python.org/sf/742342, which reports that Python
# segfaults (infinite recursion in C) in the presence of infinite
# reload()ing. This module is imported by test_import.py:test_infinite_reload
# to make sure this doesn't happen any more.
import infinite_reload
reload(infinite_reload)