From a613c4a0089d64033bffa8052a1a5cc7cb829921 Mon Sep 17 00:00:00 2001
From: Thomas Kerber <tk@drwx.org>
Date: Sun, 15 Sep 2019 13:22:04 +0100
Subject: [PATCH] chmlib: 0.4 -> 0.4a

---
 pkgs/development/libraries/chmlib/default.nix | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/pkgs/development/libraries/chmlib/default.nix b/pkgs/development/libraries/chmlib/default.nix
index fbefee48d5b..4f4af87227f 100644
--- a/pkgs/development/libraries/chmlib/default.nix
+++ b/pkgs/development/libraries/chmlib/default.nix
@@ -1,17 +1,21 @@
-{ stdenv, fetchurl }:
+{ stdenv, fetchFromGitHub, autoreconfHook }:
 
 stdenv.mkDerivation rec {
-  name = "chmlib-0.40";
+  name = "chmlib-0.40a";
 
-  src = fetchurl {
-    url = "${meta.homepage}/${name}.tar.bz2";
-    sha256 = "18zzb4x3z0d7fjh1x5439bs62dmgsi4c1pg3qyr7h5gp1i5xcj9l";
+  src = fetchFromGitHub {
+    owner = "jedwing";
+    repo = "CHMLib";
+    rev = "2bef8d063ec7d88a8de6fd9f0513ea42ac0fa21f";
+    sha256 = "1hah0nw0l05npva2r35ywwd0kzyiiz4vamghm6d71h8170iva6m9";
   };
 
+  nativeBuildInputs = [ autoreconfHook ];
+
   meta = {
     homepage = http://www.jedrea.com/chmlib;
     license = stdenv.lib.licenses.lgpl2;
     description = "A library for dealing with Microsoft ITSS/CHM format files";
-    platforms = ["x86_64-linux" "i686-linux" "x86_64-darwin"];
+    platforms = ["x86_64-linux" "i686-linux" "x86_64-darwin" "aarch64-linux"];
   };
 }