Thread Spawning Error

[Paul Fleming <paul a fleming vanderbilt edu>]

Hello everyone,

 I have been having a problem running a gtkmm program, it seg faults 
and gdb reports the following:

#0  0x08070a50 in Interface::process_thread (this=0xbfffe600)
   at interface.cpp:1127
#1  0x0807fecd in sigc::bound_mem_functor0<void, Interface>::operator() (
   this=0x84e6f9c) at mem_fun.h:1781
#2  0x0807d3cc in sigc::adaptor_functor<sigc::bound_mem_functor0<void, 
Interface> >::operator() (this=0x84e6f98) at adaptor_trait.h:251
#3  0x0807d3b6 in 
sigc::internal::slot_call0<sigc::bound_mem_functor0<void, Interface>, 
void>::call_it (rep=0x84e6f80) at slot.h:103
#4  0x40948cf2 in Glib::SpawnError::~SpawnError ()
  from /usr/lib/libglibmm-2.4.so.1
#5  0x40af061f in g_static_private_free () from /usr/lib/libglib-2.0.so.0
#6  0x4003ee51 in pthread_start_thread () from /lib/libpthread.so.0
#7  0x4003eecf in pthread_start_thread_event () from /lib/libpthread.so.0
#8  0x40ccb92a in clone () from /lib/libc.so.6

This same code works fine on another machine (Ubuntu, wheras this is 
Debian).  Could anyone offer a guess as to what the problem is?  Thanks 
very much,

-Paul Fleming