AUTO_INCLUDE_PATH
error = access(AUTO_INCLUDE_PATH, F_OK);
" %s does not exist", AUTO_INCLUDE_PATH);
yyin = auto_popen(AUTO_INCLUDE_PATH, map, NULL);
error = access(AUTO_INCLUDE_PATH, F_OK);
"%s does not exist", AUTO_INCLUDE_PATH);
yyin = auto_popen(AUTO_INCLUDE_PATH, n->n_key + 1, NULL);