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#ifdef DEBUG_MC_PROTO  do {    char *tm;    size_t tml;    tml = asprintf(&tm, "%d = write(2), errno = %d", (int)ret, errno);    if (tml > 0 && tm != NULL) {      MCM_WARNX_MSG(MCM_ERR_TRACE, tm);      free(tm);    }  } while (0);#endif