anchor.diff:      sha256 = "01fd2qb0zddif3wz1a2wdmwyzn81cf73678qp2gjs8iikmdz6w7x";
     };
   
  -  patches = map fetchurl (import ./debian-patches.nix);
  +  patches = map fetchurl ((import ./debian-patches.nix) ++
  +    [ {
  +      url = http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/media-gfx/k3d/files/k3d-0.7.11.0-libpng14.patch;
  +      sha256 = "1vl7dbvxg9b54ay0n8dd2v2k3j001h8h1bpr1cbm3vrzv31lnwzx";
  +    } ]);
   
     preConfigure = ''
       export LD_LIBRARY_PATH="$LD_LIBRARY_PATH''${LD_LIBRARY_PATH:+:}$PWD/build/lib"
  
positive.code:     homepage = "http://k-3d.org/";
      platforms = with stdenv.lib.platforms;
        linux;
      maintainers = with stdenv.lib.maintainers; 
        [raskin];
    };
  }
  
negative.code:      cmake mesa zlib python expat libxml2 libsigcxx libuuid freetype libpng
       boost doxygen cairomm pkgconfig imagemagick libjpeg libtiff gettext
       intltool perl
       gtkmm glibmm gtkglext
      ];
  
    doCheck = false;
  