and this is a backtrace from the same build using gdb:
#0 0x90010808 in sendto ()
#1 0x03bf586c in GSocket::Send_Stream(char const*, int) (this=0x14b7cf50, buffer=0x14b7c500 "?a", size=102) at ../wxWidgets/src/unix/gsocket.cpp:1315
#2 0x03bf4878 in GSocket::Write(char const*, int) (this=0x14b7cf50, buffer=0x14b7c500 "?a", size=102) at ../wxWidgets/src/unix/gsocket.cpp:868
#3 0x03bef928 in wxSocketBase::_Write(void const*, unsigned) (this=0x14b7d260, buffer=0x14b7c500, nbytes=102) at ../wxWidgets/src/common/socket.cpp:541
#4 0x03bef808 in wxSocketBase::Write(void const*, unsigned) (this=0x14b7d260, buffer=0x14b7c500, nbytes=102) at ../wxWidgets/src/common/socket.cpp:509
#5 0x00010aac in CEMSocket::Send(char*, int, int) (this=0x14b7d260, lpBuf=0x14b7c500 "?a", nBufLen=102) at EMSocket.cpp:396
#6 0x000106f0 in CEMSocket::OnSend(int) (this=0x14b7d260, nErrorCode=0) at EMSocket.cpp:350
#7 0x0000d174 in CClientReqSocket::OnSend(int) (this=0x14b7d260, nErrorCode=0) at ListenSocket.cpp:1969
#8 0x0000e300 in CClientReqSocketHandler::ClientReqSocketHandler(wxSocketEvent&) (this=0x13da4060, event=@0x110b7760) at ListenSocket.cpp:2206
#9 0x07b8e3d0 in wxAppConsole::HandleEvent(wxEvtHandler*, void (wxEvtHandler::*)(wxEvent&), wxEvent&) const (this=0x3e19ac0, handler=0x13da4060, func={__pfn = (void ( wxEvtHandler::*)(wxEvent &,)) 7224, __delta = 0}, event=@0x110b7760) at ../wxWidgets/src/common/appbase.cpp:307
#10 0x07c1df24 in wxEvtHandler::ProcessEventIfMatches(wxEventTableEntryBase const&, wxEvtHandler*, wxEvent&) (entry=@0x34c050, handler=0x13da4060, event=@0x110b7760) at ../wxWidgets/src/common/event.cpp:1169
#11 0x07c1d088 in wxEventHashTable::HandleEvent(wxEvent&, wxEvtHandler*) (this=0x34c038, event=@0x110b7760, self=0x13da4060) at ../wxWidgets/src/common/event.cpp:837
#12 0x07c1e23c in wxEvtHandler::ProcessEvent(wxEvent&) (this=0x13da4060, event=@0x110b7760) at ../wxWidgets/src/common/event.cpp:1231
#13 0x07c1dd9c in wxEvtHandler::ProcessPendingEvents() (this=0x13da4060) at ../wxWidgets/src/common/event.cpp:1122
#14 0x07b8e2d0 in wxAppConsole::ProcessPendingEvents() (this=0x3e19ac0) at ../wxWidgets/src/common/appbase.cpp:280
#15 0x07c1642c in wxMacProcessNotifierAndPendingEvents () at ../wxWidgets/src/mac/carbon/macnotfy.cpp:133
#16 0x0b67b67c in wxApp::MacHandleOneEvent(void*) (this=0x3e19ac0, evr=0x14b7d450) at ../wxWidgets/src/mac/carbon/app.cpp:1042
#17 0x0b67b59c in wxApp::MacDoOneEvent() (this=0x3e19ac0) at ../wxWidgets/src/mac/carbon/app.cpp:1017
#18 0x0b67afec in wxApp::MainLoop() (this=0x3e19ac0) at ../wxWidgets/src/mac/carbon/app.cpp:868
#19 0x0b70585c in wxAppBase::OnRun() (this=0x3e19ac0) at ../wxWidgets/src/common/appcmn.cpp:340
#20 0x07bca578 in wxEntry(int&, char**) (argc=@0xbffffc38, argv=0xbffffcd0) at ../wxWidgets/src/common/init.cpp:410
#21 0x001483cc in main (argc=1, argv=0xbffffcd0) at amule-gui.cpp:161