[21:21]nicolas@hobbes:~$ gdb /usr/local/bin/inkscape 
GNU gdb 6.8-debian
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i486-linux-gnu"...
run
(gdb) run
Starting program: /usr/local/bin/inkscape 
[Thread debugging using libthread_db enabled]
[New Thread 0xb5e6f770 (LWP 7915)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb5e6f770 (LWP 7915)]
SPCurve (this=0xd370ba0, pathv=@0x8) at /usr/include/c++/4.3/bits/stl_vector.h:485
485	      { return size_type(this->_M_impl._M_finish - this->_M_impl._M_start); }
(gdb) bt
#0  SPCurve (this=0xd370ba0, pathv=@0x8) at /usr/include/c++/4.3/bits/stl_vector.h:485
#1  0x081b324c in SPCurve::copy (this=0x0) at display/curve.cpp:132
#2  0x0852ad1e in update_repr_internal (np=0xc5f1600) at nodepath.cpp:691
#3  0x0852baaa in sp_nodepath_update_repr (np=0xc5f1600, annotation=0xb5d2cfb4 "Déplacer les n�\223uds") at nodepath.cpp:709
#4  0xb756a03c in IA__g_cclosure_marshal_VOID__UINT (closure=0xd3e8640, return_value=0x0, n_param_values=2, 
    param_values=0x9d3be78, invocation_hint=0xbf89910c, marshal_data=0x852bbe0)
    at /build/buildd/glib2.0-2.20.1/gobject/gmarshal.c:251
#5  0xb755cc7b in IA__g_closure_invoke (closure=0xd3e8640, return_value=0x0, n_param_values=2, param_values=0x9d3be78, 
    invocation_hint=0xbf89910c) at /build/buildd/glib2.0-2.20.1/gobject/gclosure.c:767
#6  0xb7572e57 in signal_emit_unlocked_R (node=0xbd4a058, detail=0, instance=0xb876170, emission_return=0x0, 
    instance_and_params=0x9d3be78) at /build/buildd/glib2.0-2.20.1/gobject/gsignal.c:3247
#7  0xb75744b9 in IA__g_signal_emit_valist (instance=0xb876170, signal_id=290, detail=0, 
    var_args=0xbf8992b0 "\b\223\211��\1774���h�") at /build/buildd/glib2.0-2.20.1/gobject/gsignal.c:2980
#8  0xb7574936 in IA__g_signal_emit (instance=0xb876170, signal_id=290, detail=0)
    at /build/buildd/glib2.0-2.20.1/gobject/gsignal.c:3037
#9  0x080b2ce5 in sp_knot_handler (event=0xb1eb100, knot=0xb876170) at knot.cpp:345
#10 0x0824df06 in sp_marshal_BOOLEAN__POINTER (closure=0xd3e87c8, return_value=0xbf8995f8, n_param_values=2, 
    param_values=0xcedb918, invocation_hint=0xbf8994ac, marshal_data=0x80b2560) at helper/sp-marshal.cpp:352
#11 0xb755cc7b in IA__g_closure_invoke (closure=0xd3e87c8, return_value=0xbf8995f8, n_param_values=2, param_values=0xcedb918, 
    invocation_hint=0xbf8994ac) at /build/buildd/glib2.0-2.20.1/gobject/gclosure.c:767
#12 0xb7572e57 in signal_emit_unlocked_R (node=0x9e9b640, detail=0, instance=0xbb5f888, emission_return=0xbf8995f8, 
    instance_and_params=0xcedb918) at /build/buildd/glib2.0-2.20.1/gobject/gsignal.c:3247
#13 0xb757434f in IA__g_signal_emit_valist (instance=0xbb5f888, signal_id=189, detail=0, 
---Type <return> to continue, or q <return> to quit---
    var_args=0xbf89964c "`\226\211�\210�\217\td\226\211�\210\n\232\v��X�") at /build/buildd/glib2.0-2.20.1/gobject/gsignal.c:2990
#14 0xb7a96d7e in IA__gtk_signal_emit (object=0xbb5f888, signal_id=189) at /build/buildd/gtk+2.0-2.16.1/gtk/gtksignal.c:360
#15 0x081c47ff in emit_event (canvas=0x98fc388, event=0xb9a0a88) at display/sp-canvas.cpp:1336
#16 0x081c6415 in sp_canvas_button (widget=0x98fc388, event=0xb9a0a88) at display/sp-canvas.cpp:1540
#17 0xb7914526 in _gtk_marshal_BOOLEAN__BOXED (closure=0x8fb6048, return_value=0xbf8998b0, n_param_values=2, 
    param_values=0xd3ff5b8, invocation_hint=0xbf89989c, marshal_data=0x81c6360)
    at /build/buildd/gtk+2.0-2.16.1/gtk/gtkmarshalers.c:84
#18 0xb755b3d9 in g_type_class_meta_marshal (closure=0x8fb6048, return_value=0xbf8998b0, n_param_values=2, param_values=0xd3ff5b8, 
    invocation_hint=0xbf89989c, marshal_data=0xb4) at /build/buildd/glib2.0-2.20.1/gobject/gclosure.c:878
#19 0xb755cc7b in IA__g_closure_invoke (closure=0x8fb6048, return_value=0xbf8998b0, n_param_values=2, param_values=0xd3ff5b8, 
    invocation_hint=0xbf89989c) at /build/buildd/glib2.0-2.20.1/gobject/gclosure.c:767
#20 0xb7572aff in signal_emit_unlocked_R (node=0x8fb5980, detail=0, instance=0x98fc388, emission_return=0xbf8999e8, 
    instance_and_params=0xd3ff5b8) at /build/buildd/glib2.0-2.20.1/gobject/gsignal.c:3285
#21 0xb757434f in IA__g_signal_emit_valist (instance=0x98fc388, signal_id=31, detail=0, 
    var_args=0xbf899a40 "X\232\211�\210\n\232\v\210�\217\t�U��\210�\217\t8\004�\b")
    at /build/buildd/glib2.0-2.20.1/gobject/gsignal.c:2990
#22 0xb7574936 in IA__g_signal_emit (instance=0x98fc388, signal_id=31, detail=0)
    at /build/buildd/glib2.0-2.20.1/gobject/gsignal.c:3037
#23 0xb7a2f2ae in gtk_widget_event_internal (widget=0x98fc388, event=0xb9a0a88)
    at /build/buildd/gtk+2.0-2.16.1/gtk/gtkwidget.c:4761
#24 0xb790cf7c in IA__gtk_propagate_event (widget=0x98fc388, event=0xb9a0a88) at /build/buildd/gtk+2.0-2.16.1/gtk/gtkmain.c:2396
#25 0xb790e327 in IA__gtk_main_do_event (event=0xb9a0a88) at /build/buildd/gtk+2.0-2.16.1/gtk/gtkmain.c:1601
#26 0xb779b34a in gdk_event_dispatch (source=0x8fa2a18, callback=0, user_data=0x0)
---Type <return> to continue, or q <return> to quit---
    at /build/buildd/gtk+2.0-2.16.1/gdk/x11/gdkevents-x11.c:2364
#27 0xb72cab88 in IA__g_main_context_dispatch (context=0x8fa2a60) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:1814
#28 0xb72ce0eb in g_main_context_iterate (context=0x8fa2a60, block=1, dispatch=1, self=0x8f88130)
    at /build/buildd/glib2.0-2.20.1/glib/gmain.c:2448
#29 0xb72ce5ba in IA__g_main_loop_run (loop=0x989f760) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:2656
#30 0xb790e7d9 in IA__gtk_main () at /build/buildd/gtk+2.0-2.16.1/gtk/gtkmain.c:1205
#31 0xb7ef33d7 in Gtk::Main::run_impl () from /usr/lib/libgtkmm-2.4.so.1
#32 0xb7ef31d2 in Gtk::Main::run () from /usr/lib/libgtkmm-2.4.so.1
#33 0x08088e17 in sp_main_gui (argc=1, argv=0xbf899e34) at main.cpp:949
#34 0x08167c3a in Inkscape::NSApplication::Application::run (this=0xbf899d70) at application/application.cpp:114
#35 0x0808846d in main (argc=1, argv=0xbf899e34) at main.cpp:685