multithreaded application gdb start script

[Nenad Vukicevic]

I have an application that forks few processes and was wondering if gdb 
script like the
one bellow is possible:

set pagination off
set target-async on
set non-stop on
set detach-on-fork off
b MPIR_i_am_starter
r
set MPIR_being_debugged=1
c&
[delay for all threads to start]
interrupt -a
thread apply all set MPIR_debug_gate=0


I am using the latest head version of gdb with multiprocessing support.

Thanks,
Nenad