--- ./snmplib/transports/snmpUDPIPv6Domain.c_orig	2026-01-09 11:39:25.940689410 -0600
+++ ./snmplib/transports/snmpUDPIPv6Domain.c	2026-01-09 11:39:52.316573195 -0600
@@ -14,6 +14,10 @@
 
 #ifdef NETSNMP_TRANSPORT_UDPIPV6_DOMAIN
 
+#ifdef _AIX
+#define MSG_DONTWAIT MSG_NONBLOCK
+#endif
+
 #include <stdio.h>
 #include <sys/types.h>
 #include <ctype.h>
--- ./snmplib/transports/snmpUDPBaseDomain.c_orig	2026-01-09 12:07:37.178030414 -0600
+++ ./snmplib/transports/snmpUDPBaseDomain.c	2026-01-09 12:08:43.328046557 -0600
@@ -56,6 +56,10 @@
 #include <net-snmp/library/system.h>
 #include <net-snmp/library/snmp_assert.h>
 
+#ifdef _AIX
+#define MSG_DONTWAIT MSG_NONBLOCK
+#endif
+
 #ifndef  MSG_DONTWAIT
 #define MSG_DONTWAIT 0
 #endif