gdb 5.1.1 runtime error (on HPUX11.0)

[Scott Zetlan]

I'm getting an odd runtime error from gdb 5.1.1 which I compiled under HP-UX
11.00.  Here's the banner from gdb when it starts up:

GNU gdb 5.1.1
Copyright 2002 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "hppa2.0w-hp-hpux11.00".

I've been building in a separate directory from the code, and my configure
line looks like:
/home/szetlan/.../configure --prefix=/home/szetlan/binutil

Here's the problem: gdb starts just fine, but then when I attempt to run a
program, it hangs.  I've gotten a core dump from gdb, which I traced with
gdb, and found that it's hanging at add_thread (thread.c) called from
child_acknowledge_created_inferior (infttrace.c).

It appears that child...inferior () accepts an int (int pid) as an argument,
and then passes that int to add_thread (line 3126).  The add_thread()
function actually takes a ptid_t (typdef'd in def.h as a struct ptid) as an
argument.  My core dump shows that gdb is attempting to access memory at
0x3d4, which evaluates to 980, or the pid of the child process.

I've been able to build the same code just fine under Solaris.  So... any
ideas what I'm missing?  The only other major difference I can see is that
on HP, I'm running gcc 3.0, and on Solaris, I've got 3.0.4.

Scott