(gdb) bt full
#0  0xb71a5b34 in FcObjectToPtr () from /usr/lib/libfontconfig.so.1
No symbol table info available.
#1  0xb71a75bf in FcPatternDistributeBytes ()
   from /usr/lib/libfontconfig.so.1
No symbol table info available.
#2  0xb71a76c7 in FcPatternFindElt ()
   from /usr/lib/libfontconfig.so.1
No symbol table info available.
#3  0xb71a16ff in FcFontSetList () from /usr/lib/libfontconfig.so.1
No symbol table info available.
#4  0xb71a2836 in FcFontList () from /usr/lib/libfontconfig.so.1
No symbol table info available.
#5  0xb6d77b2e in pango_fc_font_map_get_type ()
   from /opt/gnome/lib/libpangoft2-1.0.so.0
No symbol table info available.
#6  0xb727e7af in pango_font_map_list_families ()
   from /opt/gnome/lib/libpango-1.0.so.0
No symbol table info available.
#7  0xb727ce7e in pango_context_list_families ()
   from /opt/gnome/lib/libpango-1.0.so.0
No symbol table info available.
#8  0xb7abc733 in wxNativeFontInfo::GetFamily ()
   from /usr/lib/libwx_gtk2u_core-2.6.so.0
No symbol table info available.
#9  0xb7adc12d in wxFont::wxFont ()
   from /usr/lib/libwx_gtk2u_core-2.6.so.0
No symbol table info available.
#10 0xb7ae3a57 in wxSystemSettingsNative::GetFont ()
   from /usr/lib/libwx_gtk2u_core-2.6.so.0
No symbol table info available.
#11 0xb7ba2535 in wxInitializeStockObjects ()
   from /usr/lib/libwx_gtk2u_core-2.6.so.0
No symbol table info available.
#12 0xb7b77f58 in wxAppBase::Initialize ()
   from /usr/lib/libwx_gtk2u_core-2.6.so.0
No symbol table info available.
#13 0xb7ac0385 in wxApp::Initialize ()
   from /usr/lib/libwx_gtk2u_core-2.6.so.0
No symbol table info available.
#14 0xb78eefe5 in wxEntryStart () from /usr/lib/libwx_baseu-2.6.so.0
No symbol table info available.
#15 0xb78ef22c in wxEntry () from /usr/lib/libwx_baseu-2.6.so.0
No symbol table info available.
#16 0xb78ef326 in wxEntry () from /usr/lib/libwx_baseu-2.6.so.0
No symbol table info available.
#17 0x081153a0 in wxWindowBase::GetBestVirtualSize ()
No symbol table info available.
#18 0xb766187c in __libc_start_main () from /lib/libc.so.6
No symbol table info available.
#19 0x08068201 in ?? ()
No symbol table info available.