Drop one more shared library dependency (libusb) from core qemu.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/usb/host-libusb.c | 1 +
 hw/usb/meson.build   | 8 ++++++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/hw/usb/host-libusb.c b/hw/usb/host-libusb.c
index 2b7f87872ce3..c0f314462aaf 100644
--- a/hw/usb/host-libusb.c
+++ b/hw/usb/host-libusb.c
@@ -1777,6 +1777,7 @@ static TypeInfo usb_host_dev_info = {
     .class_init    = usb_host_class_initfn,
     .instance_init = usb_host_instance_init,
 };
+module_obj(TYPE_USB_HOST_DEVICE);
 
 static void usb_host_register_types(void)
 {
diff --git a/hw/usb/meson.build b/hw/usb/meson.build
index 3d8f2ae99302..0a6029ec9797 100644
--- a/hw/usb/meson.build
+++ b/hw/usb/meson.build
@@ -72,8 +72,12 @@ if config_host.has_key('CONFIG_USB_REDIR')
 endif
 
 # usb pass-through
-softmmu_ss.add(when: ['CONFIG_USB', 'CONFIG_USB_LIBUSB', libusb],
-               if_true: files('host-libusb.c'))
+if config_host.has_key('CONFIG_USB_LIBUSB')
+  usbhost_ss = ss.source_set()
+  usbhost_ss.add(when: ['CONFIG_USB', libusb],
+                 if_true: files('host-libusb.c'))
+  hw_usb_modules += {'host': usbhost_ss}
+endif
 
 softmmu_ss.add(when: ['CONFIG_USB', 'CONFIG_XEN', libusb], if_true: files('xen-usb.c'))
 
-- 
2.31.1