xymon client build on HPUX Itanium dilemma

How can I get around this error?  I cannot install a newer gcc binary as this is not my machine.  From what I understand gcc version 4 may or will solve this problem?  Any solutions out there other than somehow finding an Itanium HPUX machine with gcc 4?  Hobbit 4.2.2 compiles fine by the way but obviously I would like the latest Xymon client.

HP-UX <hostname> B.11.23 U ia64 2505142627 unlimited-user license

Client only build:

xymon-4.3.16> gmake -s

In file included from sendmsg.c:41:
/usr/include/sys/ipc.h:51: error: parse error before "cid_t"
/usr/include/sys/ipc.h:56: error: parse error before '}' token
In file included from sendmsg.c:42:
/usr/include/sys/msg.h:93: error: field `msg_perm' has incomplete type
sendmsg.c: In function `sendtoxymond':
sendmsg.c:349: warning: passing arg 5 of `getsockopt' from incompatible pointer type
gmake[1]: *** [sendmsg.o] Error 1
gmake: *** [lib-client] Error 2

xymon-4.3.16> gcc -v
Reading specs from /usr/local/lib/gcc/ia64-hp-hpux11.23/3.4.3/specs
Configured with: ./configure  : (reconfigured) ./configure  : (reconfigured) ./configure  : (reconfigured) ./configure  : (reconfigured) ./configure  : (reconfigured) ./configure
Thread model: single
gcc version 3.4.3


~David