From fa6ec6b057d69f9d07ce4418aa45757b9a3abe82 Mon Sep 17 00:00:00 2001
From: Aristid Breitkreuz <aristidb@gmail.com>
Date: Thu, 7 Jan 2016 22:55:20 +0100
Subject: [PATCH] mozjpeg: fix libpng dependency

---
 pkgs/applications/graphics/mozjpeg/default.nix | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/pkgs/applications/graphics/mozjpeg/default.nix b/pkgs/applications/graphics/mozjpeg/default.nix
index 2845bfd3e27..1b082de98bc 100644
--- a/pkgs/applications/graphics/mozjpeg/default.nix
+++ b/pkgs/applications/graphics/mozjpeg/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, file, libpng, nasm }:
+{ stdenv, fetchurl, file, pkgconfig, libpng, nasm }:
 
 stdenv.mkDerivation rec {
   version = "3.1";
@@ -10,11 +10,10 @@ stdenv.mkDerivation rec {
   };
 
   postPatch = ''
-
     sed -i -e "s!/usr/bin/file!${file}/bin/file!g" configure
   '';
 
-  buildInputs = [ libpng nasm ];
+  buildInputs = [ libpng pkgconfig nasm ];
 
   meta = {
     description = "Mozilla JPEG Encoder Project";