From 2332e8b0d9f15aeac39b164977008a8cd35cd7c1 Mon Sep 17 00:00:00 2001
From: Andrew Childs <lorne@cons.org.nz>
Date: Tue, 16 Jan 2018 01:46:37 +0900
Subject: [PATCH] kindlegen: Use unzip where necessary

---
 pkgs/tools/typesetting/kindlegen/default.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkgs/tools/typesetting/kindlegen/default.nix b/pkgs/tools/typesetting/kindlegen/default.nix
index 159119a8a71..4e9a40239bf 100644
--- a/pkgs/tools/typesetting/kindlegen/default.nix
+++ b/pkgs/tools/typesetting/kindlegen/default.nix
@@ -1,4 +1,4 @@
-{ fetchurl, stdenv }:
+{ fetchurl, stdenv, unzip }:
 
 let
   version = "2.9";
@@ -32,6 +32,8 @@ in stdenv.mkDerivation rec {
 
   sourceRoot = ".";
 
+  nativeBuildInputs = stdenv.lib.optional (stdenv.lib.hasSuffix ".zip" url) unzip;
+
   installPhase = ''
     mkdir -p $out/bin $out/share/kindlegen/doc
     install -m755 kindlegen $out/bin/kindlegen