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Date:      Wed, 4 Mar 2015 10:41:04 -0700
From:      Warner Losh <imp@bsdimp.com>
To:        Garrett Cooper <yaneurabeya@gmail.com>
Cc:        Ivan Klymenko <fidaj@ukr.net>, freebsd-current@freebsd.org, Glen Barber <gjb@freebsd.org>, Arseny Nasokin <eirnym@gmail.com>, Allan Jude <allanjude@freebsd.org>, Jung-uk Kim <jkim@FreeBSD.org>
Subject:   Re: r279278 failed to build (yacc: maximum table size exceeded)
Message-ID:  <32AB9AC2-066A-408E-B38A-655095E802F1@bsdimp.com>
In-Reply-To: <95891DFC-786D-4064-A9F9-7A8E434EC568@gmail.com>
References:  <CAO8GK0rbMADtgY7-y8aLOy8rpaSeXOuftZXUYFSaZ8xOTh45kQ@mail.gmail.com> <20150225154327.GD1161@hub.FreeBSD.org> <20150225182201.216f6fee@nonamehost.local> <54EE05EA.3030509@FreeBSD.org> <CAO8GK0oQ6ZkBV93ioO1n-YRbOn2ffW3AoyQXxumhWiicYNPHww@mail.gmail.com> <8E4B6A07-BEB7-46B9-BFD2-0B3F33162760@gmail.com> <54EE1E38.30106@FreeBSD.org> <95891DFC-786D-4064-A9F9-7A8E434EC568@gmail.com>

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[[ I know this is a bit stale, but this is a dangerous notion ]]


> On Feb 25, 2015, at 1:11 PM, Garrett Cooper <yaneurabeya@gmail.com> =
wrote:
> I was going to propose something a bit more radical =E2=80=94 I can =
remove the BOOTSTRAPPING conditionals and simplify the code on 10-STABLE =
/ 11-CURRENT.
>=20
> Maintaining BOOTSTRAPPING is error prone and it=E2=80=99s not saving =
much time in the long run in builds (it's taking longer to diagnose =
issues, test them, and commit fixes which will break at a later date). =
I=E2=80=99ve been bitten by this once because I don=E2=80=99t run =
ancient CURRENT/STABLE (r279198) and here are a couple follow up commits =
bumping tools versions in the past (e.g. r278975, r269662, etc).
>=20
> Just a thought.

It=E2=80=99s a terrible thought. We=E2=80=99ve done the bootstrapping =
thing for 15 years with very few
bumps and biting. No need to ditch it because lately we=E2=80=99ve been =
updating yacc
more often w/o bumping the revision.

Don=E2=80=99t remove it. There was more blood on the floor before we had =
it than after. It
documents how far back in time we try to support. Sure, things get =
missed, but
it isn=E2=80=99t always clear why we have things in the bootstrap tools. =
Having them
documented this way makes it clear.

Warner


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