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Date: Thu, 5 Apr 2012 11:39:15 -0500 (CDT)
From: Robert Bonomi <bonomi@mail.r-bonomi.com>
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To: freebsd-net@freebsd.org, freebsd-questions@freebsd.org,
	saeedeh.motlagh@gmail.com
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Cc: 
Subject: Re: what is the path of kernel build directory?
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saeedeh motlagh <saeedeh.motlagh@gmail.com> wrote:
>
> hello guys
> i want to install the openvswitch 1.4.0 from a linux package. the below
> command should be executed:
> ./configure --with-linux=/lib/modules/'uname -r '/build
> this is a linux command and i should execute the FreeBSD equivalent but i
> don't know how to do that. the manual says:
>
>    To build the Linux kernel module, so that you can run the
>    kernel-based switch, pass the location of the kernel build
>    directory on --with-linux.
>
> what is kernel build directory in FreeBSD9 amd64? or how i should execute
> this command?

If you have to ask, you should *NOT* attempt to build this kernel module
on FreeBSD.

The kernel, kernel interfaes, etc. are *DIFFERENT* between Linux and FreeBSD.
signficicant sourte-code changes will VERY PROBABLY be require to get 
the module to (a) compile, and (b) run, in a FreeBSD environment.

To do _that_ -- modifying the sources -- 'where the build directory is' is 
a very _minor_ incidental piece of knowlege.  If you don't have that 
incidental knowledge, is is virtually certain, you don't have the skill set
to do the required source modifications.

Executive summary -- this is a DDT issue.


DDT ==> <D>on't <D>o <T>hat!!