Compile errors in net-snmp

Hi All

I downloaded net-snmp-5.2.2 source and did all that was recommended and
started a compile on Sun Solaris 10 Sparc running Sun Studio 11
compiler. Set cc to be c99 and started make. The following error is
what I get:

c99 -I../../include -I. -I../../agent -I../../agent/mibgroup
-I../../snmplib -I/usr/local/ssl/include -g -Dsolaris2 -c
mibII/route_write.c -KPIC -DPIC -o mibII/.libs/route_write.lo
"mibII/route_write.c", line 126: undefined struct/union member:
rt_nodes
"mibII/route_write.c", line 126: undefined struct/union member: rn_key
"mibII/route_write.c", line 126: left operand of "->" must be pointer
to struct/union
"mibII/route_write.c", line 131: undefined struct/union member: rt_pad1
"mibII/route_write.c", line 173: undefined struct/union member:
rt_nodes
"mibII/route_write.c", line 173: undefined struct/union member: rn_key
"mibII/route_write.c", line 173: left operand of "->" must be pointer
to struct/union
"mibII/route_write.c", line 178: undefined struct/union member: rt_pad1
"mibII/route_write.c", line 314: warning: statement not reached
c99: acomp failed for mibII/route_write.c

The directory was /usr/local/src/net-snmp-5.2.2/agent/mibgroup

What is wrong. I would very much appreciate your help and advice.

Regards

Vardhan