Building 0.4.0rc1 in Ububtu via make -f makefile.unix returns the following errors/warnings:

ui.cpp: In member function 'virtual void CMainFrame::OnIconize(wxIconizeEvent&)':
ui.cpp:488:25 warning: 'bool wxIconizeEvent::Iconized() const' is deprecated (declared at /usr/local/include/wx-2.9/wx/event.h:2150)
ui.cpp:456:43 warning: 'bool wxIconizeEvent::Iconized() const' is deprecated (declared at /usr/local/include/wx-2.9/wx/event.h:2150)
ui.cpp: in function 'void SetStartOnSytstemStartup(bool)':
ui.cpp:1808:39: error: 'class boost::filesystem3::path' has no member named 'native_file_string'
make: *** [obj/ui.o] Error 1