Re: build kernel from source

[Alan Barrett <apb%cequrux.com@localhost>]

On Mon, 22 Sep 2014, bycn82 wrote:
> *Now I am building the npfctl, and I met below**
> *
> -Wsign-compare -Wformat=2 -Werror -I/usr/src/usr.sbin/npf/npfctl 
> --sysroot=/  -c /usr/src/usr.sbin/npf/npfctl/npf_bpf_comp.c
> In file included from /usr/src/usr.sbin/npf/npfctl/npf_bpf_comp.c:56:0:
> /usr/src/usr.sbin/npf/npfctl/npf_bpf_comp.c: In function 'npfctl_bpf_table':
> /usr/src/usr.sbin/npf/npfctl/npf_bpf_comp.c:610:21: error: 'BPF_COP' 
> undeclared (first use in this function)
>   BPF_STMT(BPF_MISC+BPF_COP, NPF_COP_TABLE),
>                     ^
> /usr/src/usr.sbin/npf/npfctl/npf_bpf_comp.c:610:21: note: each 
> undeclared identifier is reported only once for each function it 
> appears in
> *** Error code 1
>
> Stop.
> make: stopped in /usr/src/usr.sbin/npf/npfctl

I suspect that you have a corrupted source tree.  Please take this 
to current-users, not tech-kern.

> *Can someone told me which header has the declaration of the BPF_COP ? **
> **I found below only.*
> # grep -R BPF_COP /usr/src
> /usr/src/doc/CHANGES.prev:    kernel: Add BPF coprocessor support 
> (BPF_COP/BPF_COPX instructions).

It's in src/sys/net/bpf.h.  If grep didn't find it then you have 
an incomplete source tree.  Please fix that, and then if you still 
have build problems, ask in current-users.

--apb (Alan Barrett)