: /usr/src/usr.bin/kdump/../../sys/sys/dsched.h:112: error: field : 'sysctl_ctx' has incomplete type : *** Error code 1 This issue is fixed in commit 22befd90ce33cce626d1b4c5eafca9bc2770ceea[1]. Cheers, Alex Hornung [1]: http://gitweb.dragonflybsd.org/dragonfly.git/commit/22befd90ce33cce626d1b4c5 eafca9bc2770ceea