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From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@gnu.org>
Subject: Re: 02/02: gnu: next: Compress the executable.
Date: Sat, 28 Sep 2019 23:02:27 +0200
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In-Reply-To: <87k19tg63u.fsf@ambrevar.xyz> (Pierre Neidhardt's message of
 "Fri, 27 Sep 2019 16:35:01 +0200")
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To: Pierre Neidhardt <mail@ambrevar.xyz>
Cc: guix-devel@gnu.org

Howdy!

Pierre Neidhardt <mail@ambrevar.xyz> skribis:

> Duh, got it: if next-1.3.1-lib is grafted, then the path to SQLite,
> libfixposix, etc. _inside the compress binary_ will not be updated.
> So if we garbage-collect after that, the binary will try to FFI-load
> non-existing libraries.

Exactly!

> Note that this is only a problem because Next depends on FFI libraries.
> Compressing pure-SBCL binaries should not be a problem.

It=E2=80=99s a problem in general: any store reference in a compressed file=
 is
invisible to the GC and to the grafting code.

Ludo=E2=80=99.