mod_jk compilation error

I am trying to compile mod_jk for apache 1.3.29 on an HPUX 11 system
but failed. The error comes in the config stage on the following areas
....

>configure:3375: gcc -E conftest.c
>configure:3371:28: ac_nonexistent.h: No such file or directory
>configure:3381: $? = 1
>configure: failed program was:
>#line 3370 "configure"
>#include "confdefs.h"
>#include <ac_nonexistent.h>

>configure:3462:28: ac_nonexistent.h: No such file or directory
>configure:3472: $? = 1
>configure: failed program was:
>#line 3461 "configure"
>#include "confdefs.h"
>#include <ac_nonexistent.h>

>configure:7438: gcc -V </dev/null >&5
>gcc: argument to `-V' is missing

>configure: failed program was:
>#ifndef __cplusplus
> choke me
>#endif

and although I've defined to use apache-1.3, it still report apache
not given as follows,

>configure:8315: result: building connector for "apache-2.0"
>configure:8331: checking for target platform
>configure:8355: result: unix
>configure:8441: result: no apache given
>configure:8841: creating ./config.status

Anyone know what's wrong, and how can I get it to compile correctly?

Bosco