make buildworld error: field 'sysctl_ctx' has incomplete type

[Siju George <sgeorge.ml@xxxxxxxxx>]

Hi,

My Dragonfly system ( 2.7-DEVELOPMENT DragonFly
v2.7.0.54.g0754fe-DEVELOPMENT #18: Wed Apr  7 10:09:21 IST 2010 )
paniced and dropped to ddb prompt with some "hammer ioctl" error in
the morning. I rebooted it thinking I will get the error in the logs
but it iwas not there in 'messages' or 'dmesg'.

So Thinking there is something wrong with this development version I
tried to upgrade.

dfly-bkpsrv# git describe
v2.7.2-62-g907aee5

but got this error during

#make buildworld


===> usr.bin/kdump
cc  -O -pipe  -I/usr/src/usr.bin/kdump/../ktrace
-I/usr/src/usr.bin/kdump -I/usr/src/usr.bin/kdump/../..
-I/usr/src/usr.bin/kdump/../../sys   -Wsystem-headers -Werror -Wall -W
-Wno-unused-parameter -Wstrict-prototypes -Wmissing-prototypes
-Wpointer-arith -Wold-style-definition -Wreturn-type -Wcast-qual
-Wwrite-strings -Wswitch -Wshadow -Wcast-align -Wunused-parameter
-Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls -c
/usr/src/usr.bin/kdump/kdump.c
cc  -O -pipe  -I/usr/src/usr.bin/kdump/../ktrace
-I/usr/src/usr.bin/kdump -I/usr/src/usr.bin/kdump/../..
-I/usr/src/usr.bin/kdump/../../sys   -Wsystem-headers -Werror -Wall -W
-Wno-unused-parameter -Wstrict-prototypes -Wmissing-prototypes
-Wpointer-arith -Wold-style-definition -Wreturn-type -Wcast-qual
-Wwrite-strings -Wswitch -Wshadow -Wcast-align -Wunused-parameter
-Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls -c
ioctl.c
In file included from ioctl.c:108:
/usr/src/usr.bin/kdump/../../sys/sys/dsched.h:112: error: field
'sysctl_ctx' has incomplete type
*** Error code 1

Stop in /usr/src/usr.bin/kdump.
*** Error code 1

Stop in /usr/src/usr.bin.
*** Error code 1

Stop in /usr/src.
*** Error code 1

Stop in /usr/src.
*** Error code 1

Stop in /usr/src.
You have new mail.

Thanks

--Siju