(gdb) b inkscape.cpp:764
Breakpoint 1 at 0x808fb17: file inkscape.cpp, line 764.
(gdb) run
Starting program: /opt/inkscapesvn/bin/inkscape
[Thread debugging using libthread_db enabled]
[New Thread 0xb665e6d0 (LWP 24091)]
[Switching to Thread 0xb665e6d0 (LWP 24091)]

Breakpoint 1, inkscape_get_repr (inkscape=0x871b840,
    key=0x8627e21 "options.bulia") at inkscape.cpp:764
764         if (!repr) return NULL;
(gdb) b simple-node.cpp:209
Breakpoint 2 at 0x8137913: file xml/simple-node.cpp, line 209.
(gdb) c
Continuing.

Breakpoint 2, Inkscape::XML::SimpleNode::name (this=0x875ee80)
    at xml/simple-node.cpp:209
209         return g_quark_to_string(_name);
(gdb) p_name
Undefined command: "p_name".  Try "help".
(gdb) p _name
$1 = 2