text: #ifndef _FCP_SERVER_SERVER_H
  #define _FCP_SERVER_SERVER_H
  
  /* wrong usage error message */
  #define wuprintf()                                                             \
    fprintf(stderr, "Usage: %s [-v] [-n nthreads] \n", argv[0]);                 \
    exit(EXIT_FAILURE);
  
  #define NTHREAD_DEF 10 /* default number of communication threads */
  
  #endif /* _FCP_SERVER_SERVER_H */
  