nixpkgs/pkgs/tools/graphics/pngquant/default.nix

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{ stdenv, fetchFromGitHub, pkgconfig, libpng, zlib, lcms2 }:
stdenv.mkDerivation rec {
name = "pngquant-${version}";
version = "2.6.0";
src = fetchFromGitHub {
owner = "pornel";
repo = "pngquant";
rev = version;
sha256 = "0sdh9cz330rhj6xvqk3sdhy0393qwyl349klk9r55g88rjp774s5";
};
preConfigure = "patchShebangs .";
buildInputs = [ pkgconfig libpng zlib lcms2 ];
preInstall = ''
mkdir -p $out/bin
export PREFIX=$out
'';
meta = with stdenv.lib; {
homepage = https://pngquant.org/;
description = "A tool to convert 24/32-bit RGBA PNGs to 8-bit palette with alpha channel preserved";
platforms = platforms.linux;
license = licenses.bsd2; # Not exactly bsd2, but alike
};
}