text: #define HAVE_FLOCK
  #define HAVE_LASTLOG
  #define HAVE_UTMP
  
  #ifdef __FreeBSD__
  #  undef  HAVE_LASTLOG
  #  undef  HAVE_UTMP
  #  define HAVE_UTMPX
  #endif
  
  #ifdef __linux__
  #  define HAVE_ACCT
  #  ifndef ACCT_FILE
  #    define ACCT_FILE "/var/log/account/pacct"
  #  endif
  #endif
  
  #ifdef HAVE_SOLARIS
  #  undef  HAVE_FLOCK
  #endif
  