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{stdenv, fetchurl}:
let
folder = if stdenv.hostPlatform.system == "i686-linux" then "i686"
else if stdenv.hostPlatform.system == "x86_64-linux" then "x86_64"
else throw "Unsupported system: ${stdenv.hostPlatform.system}";
in
stdenv.mkDerivation {
name = "pngout-20150319";
src = fetchurl {
url = "http://static.jonof.id.au/dl/kenutils/pngout-20150319-linux.tar.gz";
sha256 = "0iwv941hgs2g7ljpx48fxs24a70m2whrwarkrb77jkfcd309x2h7";
};
installPhase = ''
mkdir -p $out/bin
cp ${folder}/pngout $out/bin
${if stdenv.hostPlatform.system == "i686-linux" then ''
patchelf --set-interpreter ${stdenv.glibc.out}/lib/ld-linux.so.2 $out/bin/pngout
'' else if stdenv.hostPlatform.system == "x86_64-linux" then ''
patchelf --set-interpreter ${stdenv.glibc.out}/lib/ld-linux-x86-64.so.2 $out/bin/pngout
'' else ""}
'';
meta = {
description = "A tool that aggressively optimizes the sizes of PNG images";
license = stdenv.lib.licenses.unfree;
homepage = "http://advsys.net/ken/utils.htm";
maintainers = [ stdenv.lib.maintainers.sander ];
};
}
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