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.
/* System module interface */
#ifndef Py_SYSMODULE_H
#define Py_SYSMODULE_H
#ifdef __cplusplus
extern "C" {
#endif
PyAPI_FUNC(PyObject *) PySys_GetObject(char *);
PyAPI_FUNC(int) PySys_SetObject(char *, PyObject *);
PyAPI_FUNC(FILE *) PySys_GetFile(char *, FILE *);
PyAPI_FUNC(void) PySys_SetArgv(int, char **);
PyAPI_FUNC(void) PySys_SetPath(char *);
PyAPI_FUNC(void) PySys_WriteStdout(const char *format, ...)
Py_GCC_ATTRIBUTE((format(printf, 1, 2)));
PyAPI_FUNC(void) PySys_WriteStderr(const char *format, ...)
Py_GCC_ATTRIBUTE((format(printf, 1, 2)));
PyAPI_DATA(PyObject *) _PySys_TraceFunc, *_PySys_ProfileFunc;
PyAPI_DATA(int) _PySys_CheckInterval;
PyAPI_FUNC(void) PySys_ResetWarnOptions(void);
PyAPI_FUNC(void) PySys_AddWarnOption(char *);
PyAPI_FUNC(int) PySys_HasWarnOptions(void);
#ifdef __cplusplus
}
#endif
#endif /* !Py_SYSMODULE_H */