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Date:      Fri, 11 Apr 2014 14:02:06 -0600
From:      Warner Losh <imp@bsdimp.com>
To:        Julian Elischer <julian@freebsd.org>
Cc:        freebsd-arch <freebsd-arch@freebsd.org>
Subject:   Re: Separating out building bootstrap and system compilers
Message-ID:  <C34C8AF4-3DE6-4627-BA7E-E2176B5FBCFA@bsdimp.com>
In-Reply-To: <5348366A.1030001@freebsd.org>
References:  <09D78C17-A4F6-4A79-96D4-413B937265F4@bsdimp.com> <5348366A.1030001@freebsd.org>

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On Apr 11, 2014, at 12:37 PM, Julian Elischer <julian@freebsd.org> =
wrote:

> On 4/9/14, 11:25 AM, Warner Losh wrote:
>> I=92d love to be able to say
>>=20
>> make buildworld WITHOUT_GCC=3Dt WITHOUT_CLANG=3Dt
>>=20
>> and get a working system out of it, without compilers. Too bad I =
can=92t right now.
>>=20
>> Luckily, I worked up these patches. Here=92s my proposed commit =
message. Please comment on the patch
>> (which can be found at =
http://people.freebsd.org/~imp/patch-queue/bootstrap)
>>=20
>> Separate out enabling building clang and/or gcc for the system and
>> building clang and/or gcc as the bootstrap compiler. Normally, the
>> default compiler is used. WITH_CLANG_BOOTSTRAP and/or
>> WITH_GCC_BOOTSTRAP will enable building these compilers as part
>> bootstrap phase.  WITH/WITHOUT_CLANG_IS_CC controls which compiler is
>> used by default for the bootstrap phase, as well as which compiler is
>> installed as cc.  buildworld now successfully completes building the
>> cross compiler with WITHOUT_CLANG=3Dt and WITHOUT_GCC=3Dt and =
produces a
>> built system with neither of these included.
>>=20
>> MK_CROSS_COMPILER will now force MK_CLANG_BOOTSTRAP=3Dno and
>> MK_GCC_BOOTSTRAP=3Dno.
>>=20
>> BOOTSTRAP_COMPILER was considered, but rejected, since pc98 needs =
both
>> clang and gcc to bootstrap still. It should be revisisted in the
>> future if this requirement goes away. Values should be gcc, clang or
>> none.
>>=20
>> Chances are good that MK_BINUTILS is a good candidate for similar
>> treatment. We likely need to fold Xxx causing things to magically not
>> happen into this scheme as well, but that may be a larger, more =
disruptive
>> change.
>>=20
>> Comments?
>=20
> for added credit add a top level arg that builds and installs all the =
bootstrap stuff (includes, libs, compilers, other tools) in a given =
destination..
> I happen to need this. (ok, not need but it would be nice)  at $JOB.  =
Do it by hand at the moment.

How does make xdev not fit your needs?

Warner

>>=20
>> Warner
>>=20
>> _______________________________________________
>> freebsd-arch@freebsd.org mailing list
>> http://lists.freebsd.org/mailman/listinfo/freebsd-arch
>> To unsubscribe, send any mail to =
"freebsd-arch-unsubscribe@freebsd.org"




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