I'm building vice from source (r33116) in Ubuntu 14.04 and get this from ./configure:INPUT-----Joystick support            : yesMouse support               : yesLightpen support            : yesLinux style joystick support: yesBSD style joystick support  : no Digital joystick support    : no USB joystick support        : no I see this section in configure.ac:  dnl NetBSD/FreeBSD USB joystick support  usbhid_header=no  usbhid_lib=no  usb_lib=no  AC_CHECK_LIB(usbhid, hid_get_report_desc, usbhid_lib=yes)  if test x$usbhid_lib = xyes ; then    AC_CHECK_HEADER(usbhid.h,                    [AC_DEFINE(HAVE_USBHID_H,1,                      [Define to 1 if you have the <usbhid.h> header file.])                    usb_header=yes])    AC_CHECK_HEADER(libusbhid.h,                    [AC_DEFINE(HAVE_LIBUSBHID_H,1,                      [Define to 1 if you have the <libusbhid.h> header file.])                    usb_header=yes])    if test x$usb_header = xyes ; then      AC_DEFINE(HAS_USB_JOYSTICK,,[Enable emulation for USB joysticks.])      JOY_LIBS=-lusbhid      HAS_USB_JOYSTICK_SUPPORT=yes    fi  else    AC_CHECK_LIB(usb, hid_get_report_desc, usb_lib=yes)    if test x$usb_lib = xyes; then      AC_CHECK_HEADER(usb.h,                      [AC_DEFINE(HAVE_USB_H,1,                        [Define to 1 if you have the <usb.h> header file.])                      usb_header=yes])      AC_CHECK_HEADER(libusb.h,                      [AC_DEFINE(HAVE_LIBUSB_H,1,                        [Define to 1 if you have the <libusb.h> header file.])                      usb_header=yes])      if test x$usb_header = xyes ; then        AC_DEFINE(HAS_USB_JOYSTICK,,[Enable emulation for USB joysticks.])        JOY_LIBS=-lusb        HAS_USB_JOYSTICK_SUPPORT=yes      fi    fi  fiI have /usr/include/libusb-1.0/libusb.h (I don't think Ubuntu has packages with libusbhid.h or usbhid.h), shouldn't the above be finding it?
USB Joystick support building VICE from source?
emulation