gdb for HPUX 11.23

Hi,

I'm trying to debug my gcc compiled code on my HPUX 11.23 (Itanium).
I searched the machine to find something that looks like a compiler, and what I found was :
adb (a bit unfriendly for debugging)
kwdb (I understand this is a kernel debugger)
gdb32
gdb64
gdbpa

When I run either gdb32, gdb64 or gdbpa and write

exec <MyProgramName>

I get in all cases the following message:

IPF gdb  could not be found. Try adding the directory in
which IPF gdb lives to your path enviornment variable.
Switch to IPF mode failed

As far as I know my code is 32 bit, but I tried the 64 just in case - to no avail.

I thought maybe I'm missing some part of the gdb installation, and tried installing from the gnu site, both gdb5.3 and gdb6.7, but when I run the 'configure' on both they say they do not support my configuration of HPUX 11.23.

What debugger can I use here? Why won't the gdb32 debug my code? What is IPF gdb and where can I get it?

Any help would be much appreciated!

RO