anchor.diff:      done
     '';
   
  -  enableParallelBuilding = true;
  +  passthru = {
  +    srcVerified = fetchurl {
  +      failEarly = true;
  +      pgpsigUrls = map (n: "${n}.asc") src.urls;
  +      pgpKeyFingerprint = "D827 2EF5 1DA2 23E4 D05B  4669 89AB 63D4 8277 377A";
  +      inherit (src) urls outputHash outputHashAlgo;
  +    };
  +  };
   
     meta = with stdenv.lib; {
       description = "A collection of tools and libraries for many image formats";
  
positive.code:       wkennington
      ];
      platforms = with platforms;
        i686-linux
        ++ x86_64-linux;
    };
  }
  
negative.code: stdenv.mkDerivation rec {
    name = "imagemagick-${version}";
    # Use stable patch releases, e.g. -9 or -10
    version = "7.0.1-3";
  
    src = fetchurl {
      urls = map (n: "${n}/ImageMagick-${version}.tar.xz") [
        "mirror://imagemagick/releases"
        "mirror://imagemagick"
      ];
      allowHashOutput = false;
      sha256 = "4f5a39f145bb0326f811e0826a9216b8c449ee4485550aa8c2e7cfdaf26f08a0";
    };
  
    buildInputs = [
  