Revert the change from rev 1.168. ru convinced me that the situation

that was fixed by this should not normally happen, and since I did not
record the traces of my failed build attempt that had been solved with
that change, it's not entirely clear whether it hadn't been a pilot
error on my end.  In dubio pro reo. :-)

sys/conf/kmod.mk

@@ -280,7 +280,7 @@ CFLAGS += -I${KERNBUILDDIR}
 CLEANFILES+=	${_src}
 .if !target(${_src})
 ${_src}:
-	ln -sf ${KERNBUILDDIR}/${_src} ${.TARGET}
+	ln -s ${KERNBUILDDIR}/${_src} ${.TARGET}
 .endif
 .endfor
 .else