Mark BROKEN, does not compile:

mkdep -f .depend -a -nostdinc -DKERNEL -DDRIVER_NAME=ov511 -DDEV_NAME=\"video\" -D_KERNEL -DKLD_MODULE -I/usr/local/share/linux-kmod-compat/linux_compat -I. -I@ -I@/contrib/altq -std=iso9899:1999 ov511.c /usr/local/share/linux-kmod-compat/linux_compat/ldev_stub.c /usr/local/share/linux-kmod-compat/linux_compat/linux_compat.c
In file included from /usr/local/share/linux-kmod-compat/linux_compat/ldev_stub.c:44:
/usr/local/share/linux-kmod-compat/linux_compat/ldev_stub.h:69:30: error: dev/usb/usb_port.h: No such file or directory
In file included from /usr/local/share/linux-kmod-compat/linux_compat/linux_compat.c:44:
/usr/local/share/linux-kmod-compat/linux_compat/ldev_stub.h:69:30: error: dev/usb/usb_port.h: No such file or directory
mkdep: compile failed