More details:

Starting program: /home/tdn/tmp/leafpad-soruce/leafpad-0.8.17/src/leafpad                                                                                           
[Thread debugging using libthread_db enabled]                                                                                                                       
[New Thread 0x7fffeef3a700 (LWP 24289)]                                                                                                                             
[New Thread 0x7fffee739700 (LWP 24290)]                                                                                                                             
                                                                                                                                                                    
Program received signal SIGSEGV, Segmentation fault.                                                                                                                
0x00007ffff7988d1c in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                                                                                       
(gdb) bt                                                                                                                                                            
#0  0x00007ffff7988d1c in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                                                                                   
#1  0x00007ffff5a9f81c in g_closure_invoke (closure=0x697bd0, return_value=0x0, n_param_values=2, param_values=0x7e3120, invocation_hint=0x7fffffffcc70)            
    at /build/buildd/glib2.0-2.28.6/./gobject/gclosure.c:767                                                                                                        
#2  0x00007ffff5ab07e3 in signal_emit_unlocked_R (node=<value optimized out>, detail=0, instance=0x795370, emission_return=0x0, instance_and_params=0x7e3120)       
    at /build/buildd/glib2.0-2.28.6/./gobject/gsignal.c:3182                                                                                                        
#3  0x00007ffff5aba258 in g_signal_emit_valist (instance=<value optimized out>, signal_id=<value optimized out>, detail=<value optimized out>,                      
    var_args=<value optimized out>) at /build/buildd/glib2.0-2.28.6/./gobject/gsignal.c:2983                                                                        
#4  0x00007ffff5aba41f in g_signal_emit (instance=<value optimized out>, signal_id=<value optimized out>, detail=<value optimized out>)                             
    at /build/buildd/glib2.0-2.28.6/./gobject/gsignal.c:3040                                                                                                        
#5  0x00007ffff79f37ca in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                                                                                   
#6  0x00007ffff79f3998 in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                                                                                   
#7  0x00007ffff793492e in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                                                                                   
#8  0x00007ffff781d95b in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                                                                                   
#9  0x00007ffff791a7b9 in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                                                                                   
#10 0x00007ffff791c6c4 in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                                                                                   
#11 0x00007ffff79511c1 in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                                                                                   
#12 0x00007ffff795129d in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                                                                                   
#13 0x00007ffff5ac3610 in g_type_create_instance (type=<value optimized out>) at /build/buildd/glib2.0-2.28.6/./gobject/gtype.c:1881                                
#14 0x00007ffff5aa176c in g_object_constructor (type=<value optimized out>, n_construct_properties=0, construct_params=0x0)                                         
    at /build/buildd/glib2.0-2.28.6/./gobject/gobject.c:1615                                                                                                        
#15 0x00007ffff5aa4961 in g_object_newv (object_type=6746032, n_parameters=0, parameters=0x0) at /build/buildd/glib2.0-2.28.6/./gobject/gobject.c:1398              
#16 0x00007ffff5aa563c in g_object_new (object_type=6746032, first_property_name=0x0) at /build/buildd/glib2.0-2.28.6/./gobject/gobject.c:1308                      
#17 0x00007ffff791bda9 in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                                                                                   
#18 0x00007ffff792026a in gtk_rc_get_style () from /usr/lib/libgtk-x11-2.0.so.0                                                                                     
#19 0x00007ffff79f3928 in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                                                                                   
#20 0x00007ffff798c05c in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                                                                                   
#21 0x00007ffff798c199 in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                                                                                   
#22 0x00007ffff798c3d9 in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                                                                                   
#23 0x00007ffff5a9f81c in g_closure_invoke (closure=0x73d790, return_value=0x0, n_param_values=3, param_values=0x7a9ad0, invocation_hint=0x7fffffffd760)            
    at /build/buildd/glib2.0-2.28.6/./gobject/gclosure.c:767                                                                                                        
#24 0x00007ffff5ab0e1f in signal_emit_unlocked_R (node=<value optimized out>, detail=0, instance=0x795370, emission_return=0x0, instance_and_params=0x7a9ad0)       
    at /build/buildd/glib2.0-2.28.6/./gobject/gsignal.c:3290                                                                                                        
#25 0x00007ffff5aba258 in g_signal_emit_valist (instance=<value optimized out>, signal_id=<value optimized out>, detail=<value optimized out>,                      
    var_args=<value optimized out>) at /build/buildd/glib2.0-2.28.6/./gobject/gsignal.c:2983                                                                        
#26 0x00007ffff5aba41f in g_signal_emit (instance=<value optimized out>, signal_id=<value optimized out>, detail=<value optimized out>)                             
    at /build/buildd/glib2.0-2.28.6/./gobject/gsignal.c:3040                                                                                                        
#27 0x00007ffff79ec8bc in gtk_widget_set_scroll_adjustments () from /usr/lib/libgtk-x11-2.0.so.0                                                                    
#28 0x00007ffff79341d5 in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                                                                                   
#29 0x00007ffff5a9f81c in g_closure_invoke (closure=0x69d7a0, return_value=0x0, n_param_values=2, param_values=0x79f580, invocation_hint=0x7fffffffdc20)            
    at /build/buildd/glib2.0-2.28.6/./gobject/gclosure.c:767                                                                                                        
#30 0x00007ffff5ab07e3 in signal_emit_unlocked_R (node=<value optimized out>, detail=0, instance=0x6aba10, emission_return=0x0, instance_and_params=0x79f580)       
    at /build/buildd/glib2.0-2.28.6/./gobject/gsignal.c:3182                                                                                                        
#31 0x00007ffff5aba258 in g_signal_emit_valist (instance=<value optimized out>, signal_id=<value optimized out>, detail=<value optimized out>,                      
    var_args=<value optimized out>) at /build/buildd/glib2.0-2.28.6/./gobject/gsignal.c:2983                                                                        
#32 0x00007ffff5aba41f in g_signal_emit (instance=<value optimized out>, signal_id=<value optimized out>, detail=<value optimized out>)                             
    at /build/buildd/glib2.0-2.28.6/./gobject/gsignal.c:3040                                                                                                        
#33 0x00000000004085da in create_main_window () at window.c:83                                                                                                      
#34 0x0000000000407feb in main (argc=1, argv=0x7fffffffe1f8) at main.c:304                                                                                          
(gdb)