Why do we have @ in modules builds?

[Alfred Perlstein]

On 11/3/14, 8:48 AM, Warner Losh wrote:
> Does anybody recall why we have @ symlink in our module builds?
> I’m constantly working around issues that this creates. Maybe it is time
> to eliminate it?
>
> So I’ve posted the following review: https://reviews.freebsd.org/D1100
>
> Warner
>
Thank you!!!!  I hate the '@' thing as well, I figured it was just due 
to someone not wanting 'grep -r' to work. :)

Just to check, after your changes... will you still be able to do 
something like:

cd $HOME
svn co https://.../base/head/sys/modules/foo_module
cd foo_module
make depend all install

-Alfred