1 files changed, 4 insertions, 7 deletions
diff --git a/pkgs/development/libraries/libpng/default.nix b/pkgs/development/libraries/libpng/default.nix
index 71b7b2e18ef..9c4a1b13e01 100644
--- a/pkgs/development/libraries/libpng/default.nix
+++ b/pkgs/development/libraries/libpng/default.nix
@@ -3,11 +3,11 @@
 assert zlib != null;
 
 let
-  version = "1.6.21";
-  sha256 = "10r0xqasm8fi0dx95bpca63ab4myb8g600ypyndj2r4jxd4ii3vc";
+  version = "1.6.23";
+  sha256 = "1wb2j8sba6g2h4vmv4pwsp93q74qw4gyqqs4b7vfjmpcv9xix4kd";
   patch_src = fetchurl {
     url = "mirror://sourceforge/libpng-apng/libpng-${version}-apng.patch.gz";
-    sha256 = "0wwcc52yzjaxvpfkicz20j7yzpy02hpnsm4jjlvw74gy4qjhx9vd";
+    sha256 = "1lvsn1kmarzpn269zgykjfmxq16zrdhpd1a75nzgclx97436x408";
   };
   whenPatched = stdenv.lib.optionalString apngSupport;
 
@@ -21,17 +21,14 @@ in stdenv.mkDerivation rec {
   postPatch = whenPatched "gunzip < ${patch_src} | patch -Np1";
 
   outputs = [ "dev" "out" "man" ];
+  outputBin = "dev";
 
   propagatedBuildInputs = [ zlib ];
 
-  preConfigure = "export bin=$dev";
-
   # it's hard to cross-run tests and some check programs didn't compile anyway
   makeFlags = stdenv.lib.optional (!doCheck) "check_PROGRAMS=";
   doCheck = ! stdenv ? cross;
 
-  postInstall = ''mv "$out/bin" "$dev/bin"'';
-
   passthru = { inherit zlib; };
 
   meta = with stdenv.lib; {