Fixes build failures with old kernels (USBDEVFS_GET_SPEED missing),
on the assumtion that distros with old kernels also have old libusb.

Reported-by: Alex Bennée <[email protected]>
Signed-off-by: Gerd Hoffmann <[email protected]>
---
 hw/usb/host-libusb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/usb/host-libusb.c b/hw/usb/host-libusb.c
index 08604f787fdf..c5d38cb09c06 100644
--- a/hw/usb/host-libusb.c
+++ b/hw/usb/host-libusb.c
@@ -942,7 +942,7 @@ static int usb_host_open(USBHostDevice *s, libusb_device 
*dev, int hostfd)
     usb_host_ep_update(s);
 
     libusb_speed = libusb_get_device_speed(dev);
-#ifdef CONFIG_LINUX
+#if LIBUSB_API_VERSION >= 0x01000107 && defined(CONFIG_LINUX)
     if (hostfd && libusb_speed == 0) {
         /*
          * Workaround libusb bug: libusb_get_device_speed() does not
-- 
2.27.0


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