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[bug#38390] [bug #38390] Building bootstrap Gash and Gash-Utils

From: Timothy Sample
Subject: [bug#38390] [bug #38390] Building bootstrap Gash and Gash-Utils
Date: Mon, 03 Feb 2020 12:37:04 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux)

Hi Ludo,

(CC’ing Jan and bug#38390.)

We’re nearing a release for Gash-Utils, and while working on it I made
some changes to how the bootstrap Gash and Gash-Utils are built (on the
wip-bootstrap branch.)  Jan suggested that we get your opinion on the
changes, as you are behind the current '%bootstrap-guile+guild'

The very short story is that I found that the Scheme GZip code is being
maintained and works out-of-the-box on Guile 2.0.9 [1].  This made me
unsure about copying the code into Gash-Utils when maybe we could just
use it as a dependency.  Then, I realized that the library included a
simple Tar reader, and wondered how simple a program could be that could
handle 'tar xvf gash.tar.gz'.  It turns out pretty simple!  So I put the
program and all its dependencies in an a-list with a little loop that
writes them to disk, and made a self-extracting Scheme script that can
unpack compressed tarballs [2].


The other thing is that I always intended for Gash and Gash-Utils to be
built with a loop calling “compile-file”.  This avoids the need for
“guild” which in turn avoids “bash” (AIUI).

These patches update Gash-Utils, replace the binary “tar” with my
self-extracting Scheme implementation, and replace “guild” with
“compile-file”.  I think this simplifies the bootstrap processes, and I
really like getting rid of the references to “tar”, “bash”, and “xz”
(even though they are needed for the bootstrap Guile, it feels nice to
quarantine them there).


-- Tim

Attachment: 0001-Rename-gash-core-utils-to-gash-utils.patch
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Attachment: 0002-Simplify-bootstrap-Gash-and-Gash-Utils.patch
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Attachment: 0003-Remove-bootstrap-guile-guild.patch
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