void sym_set_change_count(int count);
void sym_add_change_count(int count);
bool conf_set_all_new_symbols(enum conf_def_mode mode);
void sym_set_change_count(int count);
void sym_add_change_count(int count);
bool conf_set_all_new_symbols(enum conf_def_mode mode);
char *xstrdup(const char *s);
char *xstrndup(const char *s, size_t n);
char *xstrdup(const char *s);
char *xstrndup(const char *s, size_t n);