anchor.diff:      description = "Backends, filters, and other software that was once part of the core CUPS distribution but is no longer maintained by Apple Inc";
       license = stdenv.lib.licenses.gpl2;
       platforms = stdenv.lib.platforms.linux;
  +    maintainers = with stdenv.lib.maintainers; [ layus ];
     };
   }
  
positive.code: { stdenv, fetchurl, pkgconfig, cups, poppler, poppler_utils, fontconfig
  , libjpeg, libpng, perl, ijs, qpdf, dbus, substituteAll, bash, avahi
  , makeWrapper, coreutils, gnused, bc, gawk, gnugrep, which
  }:
  
  let
  
negative.code: 
  in stdenv.mkDerivation rec {
    name = "cups-filters-${version}";
    version = "1.14.0";
  
    src = fetchurl {
      url = "http://openprinting.org/download/cups-filters/${name}.tar.xz";
      sha256 = "1v553wvr8qdwb1g04if7cw1mfm42vs6xfyg0cvzvbng6yr6jg93s";
    };
  
    nativeBuildInputs = [ pkgconfig makeWrapper ];
  
    buildInputs = [
      cups poppler poppler_utils fontconfig libjpeg libpng perl
      ijs qpdf dbus avahi ghostscript mupdf
    ];
  
    configureFlags = [
  