Build tools

[M. Warner Losh]

In message: <AANLkTimyFxd6EC6lCxWRkM0udeKOLvgdqpXjxRYZgb8l at mail.gmail.com>
            Garrett Cooper <gcooper at FreeBSD.org> writes:
: On Sun, Jun 27, 2010 at 11:38 PM, Garrett Cooper <gcooper at freebsd.org> wrote:
: > On Sun, Jun 27, 2010 at 10:23 PM, Ruslan Ermilov <ru at freebsd.org> wrote:
: >> Hi Warner,
: >>
: >> On Sat, Jun 26, 2010 at 06:17:19PM -0600, M. Warner Losh wrote:
: >>> In message: <20100626.172307.4959786928950356.imp at bsdimp.com>
: >>>             "M. Warner Losh" <imp at bsdimp.com> writes:
: >>> : Hey Ruslan,
: >>> :
: >>> : Maybe you can help me understand why the following are in the
: >>> : buildtools list:
: >>> : _share= share/syscons/scrnmaps
: >>> :
: >>> :     bin/csh \
: >>> :     lib/ncurses/ncurses \
: >>> :     lib/ncurses/ncursesw \
: >>> :     ${_share} \
: >>> :     lib/libmagic \
: >>> :     usr.sbin/sysinstall
: >>> :
: >>> : There's clearly some side effects that I'm missing here...
: >>>
: >>> I'm missing that build-tools: target is built, and that those tools
: >>> are then used to build these items.  It isn't that these items are
: >>> built themselves.
: >>
: >> Is there anything else I'm supposed to answer?  :-)
: >
: > I think I see why peter@ added the sysinstall bit. If you look at the
: > Makefile itself there's a built-tools target (which is fairly
: > inconsequential as the rtermcap program is relatively small), and a
: > dependency to check for an existing prebuilt fat termcap file and/or
: > build a copy from scratch if the prebuilt one doesn't exist. I have no
: > idea why it's in sysinstall's Makefile -- but it's there today (which
: > means that one should probably tread around it with a big stick for
: > the time being, and eventually be moved out if it's of value).
: 
:     Finally got things netbooted, and I verified that nothing blew up
: with sysinstall missing from the box.

I've audited at least the build-tools target portion, and nothing will
break if we don't build it during the build-tools phase, so long as we
don't try to build sysinstall later.  Of course, a stripped termcap
file likely should replace the compiled-in entries.  Many people have
had good luck getting the stripped version to be extra-tiny.  Also,
many of the entries that are compiled in are no longer relevant, and
could be removed (another reason to have them be in a file sysinstall
reads).  The days of 1.2MB floppies that motivated this in the first
place are long gone...

Warner