nixpkgs-suyu/pkgs/tools/graphics/pngout/default.nix

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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}";
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in
stdenv.mkDerivation {
name = "pngout-20130221";
src = fetchurl {
url = http://static.jonof.id.au/dl/kenutils/pngout-20130221-linux.tar.gz;
sha256 = "1qdzmgx7si9zr7wjdj8fgf5dqmmqw4zg19ypg0pdz7521ns5xbvi";
};
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
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'' else ""}
'';
meta = {
description = "A tool that aggressively optimizes the sizes of PNG images";
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license = stdenv.lib.licenses.unfree;
homepage = http://advsys.net/ken/utils.htm;
maintainers = [ stdenv.lib.maintainers.sander ];
};
}