[CFT/RFC]: refactor bsd.prog.mk to understand multiple programs instead of a singular program

[Warner Losh]

On Oct 26, 2012, at 12:23 AM, Simon J. Gerraty wrote:

>> In particular, why cannot the ':L' and ':U' support be added ?
> 
> Because they already exist - with different meanings.
> They were added to NetBSD make over 10 years ago, from the OSF version
> of pmake.

And we've had the :U and :L for a similar period of time as well.  Arguing age here is an interesting historical footnote, but not a compelling argument to justify the pain to our users.

> In several areas the behavior of bmake has been changed to make it a
> drop in replacement for FreeBSD, but the above (not used at all in the
> FreeBSD base) are easier dealt with the other way.  The :tl and :tu
> equivalents were added to FreeBSD make a while back to ease the
> transition.

Why can't there be a make target that turns them on in FreeBSD compat mode.  You could then just drop those into bsd.port.mk and be done with it?  We already do this with the posix target, so there's precedent for it.

I know you've objected to this as ugly, but as I pointed out when I mentioned it before, I think this is less ugly and less work and would offer a smoother transition than forcing all the scripts to change.

Warner