Cross reference for include/notification.h of index.

# File include/notification.h

## Included Files

- `#include <stdarg.h>`

- `#include <stdio.h>`

- `#include <strings.h>`

- `#include <unistd.h>`

- `#include <stdlib.h>`

- `#include <glib.h>`

- `#include "include/UP_util.h"`

## External Variables

tracing
`extern int tracing`

reading_from_mail
`extern int reading_from_mail`

tmpdir
`extern char* tmpdir`

notitxt
`extern char* notitxt`

fwtxt
`extern char* fwtxt`

humailbox
`extern char* humailbox`

notimailtxt
`extern char* notimailtxt`

fwmailtxt
`extern char* fwmailtxt`