{"error-file", 'e', required_argument, OPT_ERROR_FILE},
{"output", 'o', required_argument, OPT_OUTPUT},
{NULL, 'O', required_argument, OPT_OUTPUT_OPTION},
{"error-file", 'e', required_argument, OPT_ERROR_FILE},
{"output", 'o', required_argument, OPT_OUTPUT},
{NULL, 'O', required_argument, OPT_OUTPUT_OPTION},