Generate vnode_if_newproto.h and vnode_if_typedef.h in case they aren't in
the kernel build directory, for example if the kernel has been configed but
not built.
<all -i386_fbsd_42 -i386_fbsd_43 -i386_fbsd_44 -i386_fbsd_45 -i386_fbsd_46 -i386_fbsd_47>
vnode_if.h: ${KSRC}/kern/vnode_if.src
awk -f ${KSRC}/tools/vnode_if.awk ${KSRC}/kern/vnode_if.src -h
+ awk -f ${KSRC}/tools/vnode_if.awk ${KSRC}/kern/vnode_if.src -q
+ awk -f ${KSRC}/tools/vnode_if.awk ${KSRC}/kern/vnode_if.src -p
<all>