anchor.diff: -{ stdenv, fetchurl, pkgconfig, libX11, libXft, libXmu }:
  +{ stdenv, fetchurl, pkgconfig
  +, libX11, libXext, libXft, libXmu, libXinerama, libXrandr, libXpm
  +, imagemagick, libpng, libjpeg, libexif, libtiff, libungif, libwebp }:
   
   stdenv.mkDerivation rec {
     name = "windowmaker-${version}";
  
positive.code:     sha256 = "1i3dw1yagsa3rs9x2na2ynqlgmbahayws0kz4vl00fla6550nns3";
    };
  
    buildInputs = [ pkgconfig libX11 libXft libXmu ];
  
    meta = with stdenv.lib; {
      homepage = http://windowmaker.org/;
  
negative.code:     maintainers = [ maintainers.AndersonTorres ];
    };
  }
  
  # TODO: investigate support for WEBP (its autodetection is failing)
  