# DF-4907 fix build: patch application + module build (guest /usr/src copy)
# $ patch -p1 < /root/fix.diff
Patching file sys/dev/disk/dm/delay/dm_target_delay.c using Plan A...
Hunk #1 succeeded at 303.
done
# $ cd /usr/src/sys/dev/disk/dm/delay && make obj; make
creating sys/ forwarding header /usr/obj/usr/src/sys/dev/disk/dm/delay/forwarder_x86_64/include/poll.h
creating sys/ forwarding header /usr/obj/usr/src/sys/dev/disk/dm/delay/forwarder_x86_64/include/syslog.h
creating sys/ forwarding header /usr/obj/usr/src/sys/dev/disk/dm/delay/forwarder_x86_64/include/ucontext.h
cc  -O2 -pipe   -D_KERNEL -Wall -Wredundant-decls -Wnested-externs -Wstrict-prototypes  -Wmissing-prototypes -Wpointer-arith -Wcast-qual  -Wold-style-definition -Wmissing-include-dirs  -Wno-pointer-sign -Winit-self -Wundef -Wno-unused-but-set-variable -std=gnu11 -Werror -DKLD_MODULE -nostdinc  -I. -Idragonfly -I/usr/obj/usr/src/sys/dev/disk/dm/delay/forwarder_x86_64/include -Idragonfly/../include -I/usr/include  -Wold-style-declaration -fno-common -ffreestanding -fno-stack-protector -fno-strict-aliasing -fno-strict-overflow -fno-asynchronous-unwind-tables -fno-omit-frame-pointer -mcmodel=kernel -mno-red-zone -mno-mmx -mno-sse -msoft-float -mno-fp-ret-in-387 -mindirect-branch=thunk-inline   -c /usr/src/sys/dev/disk/dm/delay/dm_target_delay.c
cc -Wl,--build-id=sha1 -nostdlib -Wl,--hash-style=sysv   -r -Wl,-d -o dm_target_delay.ko dm_target_delay.o
ls: *.ko: No such file or directory