gar-extraction is merged into research

I've just merged the results of my gar-extraction branch into the
research branch.  Some notes:

- GARDIR is now $(GARTOP)/gar and GARTOP is ../..
- The core GAR files are separated from the LNX-BBC stuff that sets up
  GAR to work in this tree
- It is no longer necessary to set any DESTDIRs or prefixes in the
  environment, although GAR will still honor your legacy settings.
- GAR has a nascent "USE" variable
- GAR now includes by default a set of standard DESTIMGs.  They are:
  - native (DESTDIR = /, prefix = /usr)
  - native_home (DESTDIR = /, prefix = $(HOME))
  - native_local (DESTDIR = /, prefix = /usr/local)
  - build (same as before, less the requirement to set build_prefix)
  - main (same as before, less the requirement to set main_DESTDIR)
- GAR uses GNU autoconf's config.guess to set GARBUILD

Unresolved issues:

- gar.bugs.mk
- Creation of separate arch project for GAR
- Automation of tla build-config in LNX-BBC's gar.mk

I don't really know how or where GAR should be hosted as an
independent project.  I'll just note for now that the domain
gargargar.org was available last time I checked.

-Nate

-- 
--< ((\))< >----< [email protected] >----< http://www.movealong.org/ >--
pub  1024D/05A058E0 2002-03-07 Nate Riffe (06-Mar-2002) <[email protected]>
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