aconf_set_string
extern int aconf_set_string(const char *, const char *);
if (aconf_set_string(AC_PROP_FILE, AC_STR_NONE) == -1)
if (aconf_set_string(AC_PROP_TRACKED, tracked) == -1)
if (aconf_set_string(AC_PROP_UNTRACKED, untracked) == -1)
if (aconf_set_string(AC_PROP_FILE, file) == -1)