We compiled zabbix_agentd for AIX5.2.
The option of the compilation is (--enable-agent --enable-ipv6).
However, the compilation doesn't succeed because the error occurs.

Making all in zbxcomms
if gcc -DHAVE_CONFIG_H -I. -I. -I../../../include -g -O2 -MT comms.o -MD -MP -MF ".deps/comms.Tpo" -c -o comms.o comms.c; then mv -f ".deps/ comms.Tpo" ".deps/comms.Po"; else rm -f ".deps/comms.Tpo"; exit 1; fi
comms.c: In function `zbx_tcp_check_security':
comms.c:1277: error: structure has no member named `ss_family'