From b835d4badefd230612cc066296ae3e3f6a36e6fa Mon Sep 17 00:00:00 2001
From: "William A. Kennington III" <william@wkennington.com>
Date: Tue, 19 May 2015 21:34:51 -0700
Subject: [PATCH] libunwind: Fix lzma propagation

---
 pkgs/development/libraries/libunwind/default.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkgs/development/libraries/libunwind/default.nix b/pkgs/development/libraries/libunwind/default.nix
index b08c169993e..91895114ea0 100644
--- a/pkgs/development/libraries/libunwind/default.nix
+++ b/pkgs/development/libraries/libunwind/default.nix
@@ -21,6 +21,12 @@ stdenv.mkDerivation rec {
     mkdir -p "$out/lib"
     touch "$out/lib/libunwind-generic.so"
   '';
+
+  postInstall = ''
+    find $out -name \*.la | while read file; do
+      sed -i 's,-llzma,${xz}/lib/liblzma.la,' $file
+    done
+  '';
   
   meta = with stdenv.lib; {
     homepage = http://www.nongnu.org/libunwind;