if (read_cases != fread (input_buf, case_bytes, read_cases, input_file))
msg (FE, _("Error reading FLIP file: %s."), strerror (errno));
if (read_cases != fread (input_buf, case_bytes, read_cases, input_file))
msg (FE, _("Error reading FLIP file: %s."), strerror (errno));