lbzip2: fix build

The release tarball is no longer available at the specified URL, so
building from git. Also, the gnulib in the release tarball was too old
for our recent glibc version.

pkgs/tools/compression/lbzip2/default.nix

@@ -1,13 +1,23 @@
-{ stdenv, fetchurl }:
+{ stdenv, fetchFromGitHub, gnulib, perl, autoconf, automake }:
 
 stdenv.mkDerivation rec {
-  name = "lbzip2-2.5";
+  version = "2.5";
+  name = "lbzip2-${version}";
 
-  src = fetchurl {
-    url = "http://archive.lbzip2.org/${name}.tar.gz";
-    sha256 = "1sahaqc5bw4i0iyri05syfza4ncf5cml89an033fspn97klmxis6";
+  src = fetchFromGitHub {
+    owner = "kjn";
+    repo = "lbzip2";
+    sha256 = "1h321wva6fp6khz6x0i6rqb76xh327nw6v5jhgjpcckwdarj5jv8";
+    rev = "v${version}";
   };
 
+  buildInputs = [ gnulib perl ];
+  nativeBuildInputs = [ autoconf automake ];
+
+  preConfigure = ''
+    ./build-aux/autogen.sh
+  '';
+
   meta = with stdenv.lib; {
     homepage = "https://github.com/kjn/lbzip2"; # Formerly http://lbzip2.org/
     description = "Parallel bzip2 compression utility";