Patch copied from Debian:

https://anonscm.debian.org/cgit/pkg-games/lierolibre.git/tree/debian/patches/0001-Use-unaligned-access-define-over-checking-arch.patch?id=82910748906855f6e6bfe30b3f077e8c793ae424

From 396f19b6b7743d394307f70f0c0108419824437b Mon Sep 17 00:00:00 2001
From: Martin Erik Werner <martinerikwerner@gmail.com>
Date: Sun, 28 Jun 2015 16:31:34 +0200
Subject: [PATCH 1/3] Use unaligned access define over checking arch

This todo item seems like it done, and just needed implementing...
---
 io/encoding.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gvl/io/encoding.hpp b/src/gvl/io/encoding.hpp
index c491677..89bb612 100644
--- a/src/gvl/io/encoding.hpp
+++ b/src/gvl/io/encoding.hpp
@@ -374,7 +374,7 @@ struct octet_stream_writer
 		// inlining of the common case
 		if(std::size_t(end_ - cur_) >= len)
 		{
-#if GVL_X86 || GVL_X86_64 // TODO: A define that says whether unaligned access is allowed
+#if GVL_UNALIGNED_ACCESS
 			if(len < 64) // TODO: Tweak this limit
 			{
 				while(len > 4)
-- 
2.4.6

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