From e1873ade382294a4e49acfe68ab811c119f12766 Mon Sep 17 00:00:00 2001
From: zimbatm <zimbatm@zimbatm.com>
Date: Sat, 9 Jan 2016 16:33:54 +0000
Subject: [PATCH 1/2] pngcrush: 1.7.85 -> 1.7.92

also fixes a compilation issue on OSX
---
 pkgs/tools/graphics/pngcrush/default.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/tools/graphics/pngcrush/default.nix b/pkgs/tools/graphics/pngcrush/default.nix
index cc086da5a13..d4383e36349 100644
--- a/pkgs/tools/graphics/pngcrush/default.nix
+++ b/pkgs/tools/graphics/pngcrush/default.nix
@@ -1,11 +1,11 @@
 { stdenv, fetchurl, libpng }:
 
 stdenv.mkDerivation rec {
-  name = "pngcrush-1.7.85";
+  name = "pngcrush-1.7.92";
 
   src = fetchurl {
     url = "mirror://sourceforge/pmt/${name}-nolib.tar.xz";
-    sha256 = "1hvcync32x2ign694scafkj7xc73gzyy8n2l5z026yxckilyyv19";
+    sha256 = "0dlwbqckv90cpvg8qhkl3nk5yb75ddi61vbpmmp9n0j6qq9lp6y4";
   };
 
   configurePhase = ''

From 93ddfbacd4a25eab23eb5eba073638c6af7657d2 Mon Sep 17 00:00:00 2001
From: zimbatm <zimbatm@zimbatm.com>
Date: Sat, 9 Jan 2016 16:35:27 +0000
Subject: [PATCH 2/2] pngcrush: fixes compilation on darwin

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

diff --git a/pkgs/tools/graphics/pngcrush/default.nix b/pkgs/tools/graphics/pngcrush/default.nix
index d4383e36349..6a6f3e7b13c 100644
--- a/pkgs/tools/graphics/pngcrush/default.nix
+++ b/pkgs/tools/graphics/pngcrush/default.nix
@@ -8,6 +8,8 @@ stdenv.mkDerivation rec {
     sha256 = "0dlwbqckv90cpvg8qhkl3nk5yb75ddi61vbpmmp9n0j6qq9lp6y4";
   };
 
+  makeFlags = [ "CC=cc" "LD=cc" ];      # gcc and/or clang compat
+
   configurePhase = ''
     sed -i s,/usr,$out, Makefile
   '';
@@ -18,7 +20,7 @@ stdenv.mkDerivation rec {
     homepage = http://pmt.sourceforge.net/pngcrush;
     description = "A PNG optimizer";
     license = stdenv.lib.licenses.free;
-    platforms = with stdenv.lib.platforms; linux;
+    platforms = with stdenv.lib.platforms; linux ++ darwin;
     maintainers = with stdenv.lib.maintainers; [ the-kenny ];
   };
 }