{ stdenv, fetchgit, libpng }: stdenv.mkDerivation rec { name = "pngquant-${version}"; version = "2.0.1"; src = fetchgit { url = https://github.com/pornel/pngquant.git; rev = "refs/tags/${version}"; sha256 = "00mrv9wgxbwy517l8i4n7n3jpzirjdgi0zass3wj29i7xyipwlhf"; }; buildInputs = [ libpng ]; preInstall = '' mkdir -p $out/bin export PREFIX=$out ''; meta = with stdenv.lib; { homepage = https://github.com/pornel/pngquant; description = "pngquant converts 24/32-bit RGBA PNGs to 8-bit palette with alpha channel preserved"; platforms = platforms.all; license = licenses.bsd2; # Not exactly bsd2, but alike broken = true; }; }