make install clean
===> Configuring for lsof-4.85A,5
!!!WARNING!!! No kernel sources in /usr/src/sys or /sys
Creating ./lockf_owner.h from /kern/kern_lockf.c
FATAL ERROR: can't read /kern/kern_lockf.c
FATAL ERROR: ./lockf_owner.h creation failed (see 00FAQ)
===> Script "Configure" failed unexpectedly.
Please report the problem to [email protected] [maintainer] and attach the
"/usr/ports/sysutils/lsof/work/lsof_4.85A.freebsd/config.log" including the
output of the failure of your make command. Also, it might be a good idea to
provide an overview of all packages installed on your system (e.g. an `ls
/var/db/pkg`).
*** Error code 1
Stop in /usr/ports/sysutils/lsof.