Allow user install

[Warner Losh]

On Jun 26, 2012, at 4:54 AM, Dag-Erling Smørgrav wrote:

> Simon Gerraty <sjg at juniper.net> writes:
>> The patch below is a step towards supporting unprivileged buildworld
>> etc.  Eg.
> 
> Wow, this is really cool - and long overdue.

Yes.

> I've been thinking for a while that some bor^H^H^Henterprising soul
> should hack install(1) so that if a specific environment variable is
> set, it writes the file to a tarball instead of writing it to disk.
> Unfortunately, there would still be a ton of ${LN} etc. that would need
> to be handled somehow.  Perhaps install(1) should have an option to
> create symlinks so we could use that instead of ln -s, in the interest
> of reducing the number of different tools used during installation.

I'd prefer that to this hack, honestly, but this hack is cool.  NetBSD did this years ago, and bringing it and the changes to xtree would be a good thing.  There's also a number of mkdirs that also need to be updated.  Let's not reinvent the wheel here, when there's a perfectly good wheel elsewhere.

> (BTW, I find INSTALL_OWN confusing - how about UNPRIVILEGED_INSTALL or
> USER_INSTALL?)

Well, the former is more correct.  The latter are the real goal :)  I'm not sure I like any of the names, but that will work itself out.

Warner