From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: [bootstrappable] diverse double compilation: using $ORIGIN?
Date: Sun, 05 Nov 2017 17:09:12 +0100
Message-ID: <878tfkr9lj.fsf@gnu.org>
References: <87wp3agd60.fsf@elephly.net> <87po91vzj3.fsf@gnu.org>
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In-Reply-To: <87po91vzj3.fsf@gnu.org> (Jan Nieuwenhuizen's message of "Thu, 02
	Nov 2017 09:46:24 +0100")
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To: Jan Nieuwenhuizen <janneke@gnu.org>
Cc: guix-devel@gnu.org, bootstrappable@freelists.org

Jan Nieuwenhuizen <janneke@gnu.org> skribis:

> From c91609e847066c384826d726033146e08d8185ed Mon Sep 17 00:00:00 2001
> From: Jan Nieuwenhuizen <janneke@gnu.org>
> Date: Thu, 2 Nov 2017 06:52:46 +0100
> Subject: [PATCH] gnu: Add clang-gcc, gcc-ddc.  WIP
>
> Usage: guix build gcc-dcc
>
> Building gcc-dcc tests the diverse double compilation property
> of the gcc that Guix is using.
>
> gcc-dcc is a meta-package that depends on gcc-5.4.0 and on
> clang-gcc-5.4.0 (the same GCC built with clang).  The builder
> checks if both gcc's are bit-for-bit identical and fails if
> they differ.
>
> * gnu/packages/bootstrappable.scm: New file.
> * gnu/local.mk (GNU_SYSTEM_MODULES): Add it.

Awesome!  Does it build fine out-of-the-box?  I didn=E2=80=99t expect it to=
 be
=E2=80=9Cthis easy.=E2=80=9D  :-)

Ludo=E2=80=99.