From 61d0c5d931128e5471c6ed1e31cd0d6a2455fda0 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Thu, 19 Jan 2012 17:33:33 +0000
Subject: [PATCH] * Don't rely on tar knowing about .xz.

svn path=/nixpkgs/branches/stdenv-updates/; revision=31708
---
 pkgs/stdenv/generic/setup.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/stdenv/generic/setup.sh b/pkgs/stdenv/generic/setup.sh
index a967f81ece9..ee115aab609 100644
--- a/pkgs/stdenv/generic/setup.sh
+++ b/pkgs/stdenv/generic/setup.sh
@@ -430,6 +430,10 @@ unpackFile() {
     header "unpacking source archive $curSrc" 3
 
     case "$curSrc" in
+        *.tar.xz | *.tar.lzma)
+            # Don't rely on tar knowing about .xz.
+            xz -d < $curSrc | tar xv -
+            ;;
         *.tar | *.tar.* | *.tgz | *.tbz2)
             # GNU tar can automatically select the decompression method
             # (info "(tar) gzip").