From 6d2d09840feab0ccf900170773b5ee5034b8fd90 Mon Sep 17 00:00:00 2001
From: Natanael Copa <ncopa@alpinelinux.org>
Date: Tue, 17 Apr 2018 21:02:28 +0000
Subject: abuild: fix unxz with threading

busybox unxz does not support --threads/-T option
---
 abuild.in | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/abuild.in b/abuild.in
index a10bca3..67a596f 100644
--- a/abuild.in
+++ b/abuild.in
@@ -454,7 +454,11 @@ default_unpack() {
 					|| return 1;;
 			*.tar.xz)
 				msg "Unpacking $s..."
-				unxz -T 0 -c "$s" | tar -C "$srcdir" -x || return 1;;
+				local threads_opt
+				if [ $(readlink -f $(command -v unxz)) != "/bin/busybox" ]; then
+					threads_opt="--threads=0"
+				fi
+				unxz $threads_opt -c "$s" | tar -C "$srcdir" -x || return 1;;
 			*.zip)
 				msg "Unpacking $s..."
 				unzip -n -q "$s" -d "$srcdir" || return 1;;
-- 
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