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website: childhurds-and-substitutes: Tweak for publication. 

* website/drafts/childhurds-and-substitutes.md: Adjust title, date, and
tags.
(Isolated build environments): Add link to issue.
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Ludovic Courtès 2020-10-08 13:10:48 +02:00
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website/drafts/childhurds-and-substitutes.md
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@ -1,8 +1,8 @@
title: DRAFT Childhurds and GNU/Hurd substitutes
date: 2020-10-07 00:00
title: Childhurds and GNU/Hurd substitutes
date: 2020-10-08 14:15
author: Jan (janneke) Nieuwenhuizen, Ludovic Courtès, Mathieu Othacehe
slug: childhurds-and-substitutes
tags: GNU/Hurd
tags: GNU/Hurd, Reproducible builds
---
A lot has happened since our [Hello Hurd
@ -403,12 +403,13 @@ remote procedure calls (RPCs) to `/servers/socket/2`, which the
That raises an interesting question: what should the build environment
contain on GNU/Hurd? So far our GNU/Hurd builds were made in
non-isolated environments; we have just [started implementing](XXX:
link?) support for isolated builds but we’ll have to answer that
question first. If we stick to our approach—every piece of user-land
software must be an explicit input of the build process—then code that
implements TCP/IP, `/dev/null`, or even `pipe` should be an explicit
input of any build process that needs those facilities.
non-isolated environments; we have just [started
implementing](https://issues.guix.gnu.org/43857) support for isolated
builds but we’ll have to answer that question first. If we stick to our
approach—every piece of user-land software must be an explicit input of
the build process—then code that implements TCP/IP, `/dev/null`, or even
`pipe` should be an explicit input of any build process that needs those
facilities.
This principled approach can push the notion of controlled, reproducible
build environments to a whole new level. For example, we’ve