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.
/* This module provides the necessary stubs for when dynamic loading is
not present. */
#include "Python.h"
#include "importdl.h"
const struct filedescr _PyImport_DynLoadFiletab[] = {
{0, 0}
};