make errors in net-snmp-5.3.1

[Randy Bush]

currebt on amd64

 cc -I../../include -I. -I../../agent -I../../agent/mibgroup
-I../../snmplib -DAPPLLIB_EXP=/usr/local/lib/perl5/5.8.8/BSDPAN
-DHAS_FPSETMASK -DHAS_FLOATINGPOINT_H -fno-strict-aliasing -pipe
-Wdeclaration-after-statement -I/usr/local/include
-I/usr/local/lib/perl5/5.8.8/mach/CORE -DINET6 -O2 -fno-strict-aliasing
-pipe -Dfreebsd8 -c mibII/tcpTable.c  -fPIC -DPIC -o mibII/.libs/tcpTable.o
mibII/tcpTable.c:94:1: warning: "INP_NEXT_SYMBOL" redefined
In file included from ../../include/net-snmp/net-snmp-config.h:1585,
                 from mibII/tcpTable.c:17:
../../include/net-snmp/system/freebsd.h:9:1: warning: this is the
location of the previous definition
mibII/tcpTable.c: In function 'tcpTable_load':
mibII/tcpTable.c:746: error: 'struct xinpcb' has no member named 'xt_tp'
mibII/tcpTable.c:750: error: 'struct xinpcb' has no member named 'xt_inp'
*** Error code 1