Hi, I'v been happily running libdlo 0.1.2 under xubuntu 11.04 to power a plugable usb-vga converter. I'd like to upgrade to xubuntu 12.04, but when I tried to compile the vnc2dl package <a href="https://github.com/quentinsf/vnc2dl/wiki">https://github.com/quentinsf/vnc2dl/wiki</a> (which ran beautifully under 11.04) it failed: gcc -m32 -o vnc2dl -g -O2 -fno-strict-aliasing args.o caps.o dldevice.o listen.o rfbproto.o sockets.o tunnel.o vnc2dl.o ../libvncauth/libvncauth.a -L/usr/local/lib -lz -L/usr/local/lib -ljpeg -lusb /usr/local/lib/libdlo.a /usr/local/lib/libdlo.a(libdlo_la-dlo_usb.o): In function `usb_error_grab': /home/xubuntu/Downloads/libdlo-0.1.2/src/dlo_usb.c:503: undefined reference to `usb_strerror' /usr/local/lib/libdlo.a(libdlo_la-dlo_usb.o): In function `dlo_usb_enumerate': /home/xubuntu/Downloads/libdlo-0.1.2/src/dlo_usb.c:152: undefined reference to `usb_find_busses' (plus lots of similar error messages -- please see the attached output of the make file). Question: Is this caused by libdlo using an old library that's not supported by xubuntu 12.04? Like I said I have problem compiling vnc2dl under 11.04. Just to clarify: The error occured when I compile vnc2dl; I have no problem building libdlo (and "make check" ran correctly). Also, I did install libusb-0.1.4 and libusb-dev. For your refernece, I've enclosed below the output of the make file for vnc2dl: one under 12.04 (with errors), and under 11.04. Thanks!