Copied from Debian:

https://anonscm.debian.org/cgit/pkg-games/lierolibre.git/tree/debian/patches/0003-Remove-unknown-arch-warning.patch?id=82910748906855f6e6bfe30b3f077e8c793ae424

From a9592533eeabed075b13d11c64f63f503dc13343 Mon Sep 17 00:00:00 2001
From: Martin Erik Werner <martinerikwerner@gmail.com>
Date: Sun, 28 Jun 2015 19:31:30 +0200
Subject: [PATCH 3/3] Remove unknown arch warning

The warning was just excessivley spammy, remove it.
---
 support/platform.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/src/gvl/support/platform.h b/src/gvl/support/platform.h
index 1857b7c..ff6a7d2 100644
--- a/src/gvl/support/platform.h
+++ b/src/gvl/support/platform.h
@@ -87,8 +87,6 @@
 #  define GVL_X86_64 1
 # elif defined(__i386__) || defined(_M_IX86) || defined(i386) || defined(i486) || defined(intel) || defined(x86) || defined(i86pc)
 #  define GVL_X86 1
-# else
-#  warning "Unknown architecture, please add it"
 # endif
 #endif
 
-- 
2.4.6

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<div class='path'>path: <a href='/guix/log/?id=30da7825aac8474a3e5a5e4b5020aa1906a7c635'>root</a>/<a href='/guix/log/README?id=30da7825aac8474a3e5a5e4b5020aa1906a7c635'>README</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/README?id=30da7825aac8474a3e5a5e4b5020aa1906a7c635&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-05-20 01:58:04 +0200'>2021-05-20</span></td><td><a href='/guix/commit/README?id=c0087d33705f53cc3619a1a43a33602aaecc3a8b'>The #guix channel is hosted by Libera Chat.</a><span class='msg-avail'>...<span class='msg-tooltip'>* README (Contact): Update network name.
* ROADMAP: Likewise.
* doc/contributing.texi (Contributing): Likewise.
* doc/guix.texi (After System Installation): Likewise.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-10-23 12:57:20 -0400'>2020-10-23</span></td><td><a href='/guix/commit/README?id=b5aaa3a4fb985d21e21e2a67f48b52f13ebd4728'>doc: Update README.</a><span class='msg-avail'>...<span class='msg-tooltip'>* README (Installation): Do not mention installing Guix from Git anymore.
(Building from Git): Add section.
</span></span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2020-10-22 22:47:54 -0400'>2020-10-22</span></td><td><a href='/guix/commit/README?id=503d2bfde08f9bf97bbf430516d2f19faedd4319'>README: Refer to the manual for building from Git.</a><span class='msg-avail'>...<span class='msg-tooltip'>* README (Installing Guix from Guix): Remove section.
(Installation): For installing from Git, refer to the "Building from Git"
section of the manual and suggest using './pre-inst-env guix pull' rather than
'make install' for installing Guix.
</span></span></td><td>Maxim Cournoyer</td></tr>