*** ./src/nrpe.c.ORIG	Wed Nov 20 13:26:50 2013
--- ./src/nrpe.c	Wed Nov 20 13:27:51 2013
***************
*** 868,873 ****
--- 868,877 ----
  	syslog(LOG_INFO, "Server listening on %s port %s.", ntop, strport);
  	}
  
+ #if (defined(_AIX51) || defined(_AIX52) || defined(_AIX53)) && !(defined(_AIX61))
+ #define ss_family __ss_family
+ #endif
+ 
  /* wait for incoming connection requests */
  void wait_for_connections(void){
  	struct addrinfo *ai;