Linking mameui.exe...obj/winui/libosd.a(winmainui.o):winmain.c:(.rdata$_ZTV21windows_osd_interface[__ZTV21windows_osd_interface]+0x50): undefined reference to `windows_osd_interface::network_init()'obj/winui/libosd.a(winmainui.o):winmain.c:(.rdata$_ZTV21windows_osd_interface[__ZTV21windows_osd_interface]+0x68): undefined reference to `windows_osd_interface::network_exit()'C:/mingw/mingw64-w32/bin/../lib/gcc/i686-w64-mingw32/4.9.1/../../../../i686-w64-mingw32/bin/ld.exe: obj/winui/libosd.a(winmainui.o): bad reloc address 0x68 in section `.rdata$_ZTV21windows_osd_interface[__ZTV21windows_osd_interface]'collect2.exe: error: ld returned 1 exit statusmake: *** [mameui.exe] Error 1