+extern char *get_current_dir_name(void);
+#endif
+
+#ifndef HAVE_ASPRINTF
+extern int asprintf(char **, const char *, ...);
+extern int vasprintf(char **, const char *, va_list ap);
+#endif
+
+#ifndef HAVE_GETTIMEOFDAY
+extern int gettimeofday(struct timeval *, void *);