From a77ee3b5a53f135982112829c7fe6e6ab8a70bdb Mon Sep 17 00:00:00 2001
From: Jan Malakhovski <oxij@oxij.org>
Date: Wed, 8 Aug 2018 19:02:00 +0000
Subject: [PATCH] pixman: libpng is an optional dependency, not a member of
 `checkInputs`

Since it was used before, let's keep using it.
---
 pkgs/development/libraries/pixman/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/pixman/default.nix b/pkgs/development/libraries/pixman/default.nix
index 2987c67ae757..af4e12a014b7 100644
--- a/pkgs/development/libraries/pixman/default.nix
+++ b/pkgs/development/libraries/pixman/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ pkgconfig ]
     ++ stdenv.lib.optionals stdenv.cc.isClang [ autoconf automake libtool autoreconfHook ];
 
-  buildInputs = stdenv.lib.optional doCheck libpng;
+  buildInputs = [ libpng ];
 
   configureFlags = stdenv.lib.optional stdenv.isAarch32 "--disable-arm-iwmmxt";